From 6aa45da0f208fe2129b195e31b306ee21306f302 Mon Sep 17 00:00:00 2001 From: anton-karlovskiy-g Date: Wed, 10 Feb 2021 21:38:34 +0300 Subject: [PATCH 1/6] [fix] upgrade truffle version --- .gitignore | 1 + .vscode/settings.json | 6 + package-lock.json | 12570 +++++----- package.json | 7 +- src/abis/Address.json | 37448 ----------------------------- src/abis/Color.json | 1945 -- src/abis/Counters.json | 37450 ----------------------------- src/abis/ERC165.json | 37478 ----------------------------- src/abis/ERC721.json | 37799 ----------------------------- src/abis/ERC721Enumerable.json | 37877 ----------------------------- src/abis/ERC721Full.json | 37944 ------------------------------ src/abis/ERC721Metadata.json | 37870 ----------------------------- src/abis/IERC165.json | 37472 ----------------------------- src/abis/IERC721.json | 37736 ----------------------------- src/abis/IERC721Enumerable.json | 37793 ----------------------------- src/abis/IERC721Metadata.json | 37784 ----------------------------- src/abis/IERC721Receiver.json | 37496 ----------------------------- src/abis/Migrations.json | 1384 -- src/abis/SafeMath.json | 37448 ----------------------------- src/contracts/Color.sol | 3 +- src/contracts/ERC721Full.sol | 26 +- 21 files changed, 6366 insertions(+), 499171 deletions(-) create mode 100644 .vscode/settings.json delete mode 100644 src/abis/Address.json delete mode 100644 src/abis/Color.json delete mode 100644 src/abis/Counters.json delete mode 100644 src/abis/ERC165.json delete mode 100644 src/abis/ERC721.json delete mode 100644 src/abis/ERC721Enumerable.json delete mode 100644 src/abis/ERC721Full.json delete mode 100644 src/abis/ERC721Metadata.json delete mode 100644 src/abis/IERC165.json delete mode 100644 src/abis/IERC721.json delete mode 100644 src/abis/IERC721Enumerable.json delete mode 100644 src/abis/IERC721Metadata.json delete mode 100644 src/abis/IERC721Receiver.json delete mode 100644 src/abis/Migrations.json delete mode 100644 src/abis/SafeMath.json diff --git a/.gitignore b/.gitignore index 8692cf6..779b2e3 100644 --- a/.gitignore +++ b/.gitignore @@ -22,3 +22,4 @@ npm-debug.log* yarn-debug.log* yarn-error.log* +/src/abis diff --git a/.vscode/settings.json b/.vscode/settings.json new file mode 100644 index 0000000..dc94151 --- /dev/null +++ b/.vscode/settings.json @@ -0,0 +1,6 @@ +{ + "cSpell.words": [ + "bignumber", + "browserslist" + ] +} \ No newline at end of file diff --git a/package-lock.json b/package-lock.json index 1ad85bb..ade3fd5 100644 --- a/package-lock.json +++ b/package-lock.json @@ -9,7 +9,7 @@ "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.0.0.tgz", "integrity": "sha512-OfC2uemaknXr87bdLUkWog7nYuliM9Ij5HUcajsVcMCpQrcLmtxRbVFTIqmcSkSeYRBFBRxs2FiUqFJDLdiebA==", "requires": { - "@babel/highlight": "7.5.0" + "@babel/highlight": "^7.0.0" } }, "@babel/core": { @@ -17,20 +17,20 @@ "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.1.6.tgz", "integrity": 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start", "build": "react-scripts build", "test": "react-scripts test", - "eject": "react-scripts eject" + "eject": "react-scripts eject", + "copy-erc721full-to-source": "./node_modules/.bin/truffle-flattener ./node_modules/@openzeppelin/contracts/token/ERC721/ERC721Full.sol > src/contracts/ERC721Full.sol" }, "eslintConfig": { "extends": "react-app" diff --git a/src/abis/Address.json b/src/abis/Address.json deleted file mode 100644 index d75fe88..0000000 --- a/src/abis/Address.json +++ /dev/null @@ -1,37448 +0,0 @@ -{ - "contractName": "Address", - "abi": [], - "bytecode": "0x604c602c600b82828239805160001a60731460008114601c57601e565bfe5b5030600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea165627a7a7230582093b362921bf95d5d37b95b344fda3ce8ff9f9cf13718c7cb42212d92a99cf1890029", - "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea165627a7a7230582093b362921bf95d5d37b95b344fda3ce8ff9f9cf13718c7cb42212d92a99cf1890029", - "sourceMap": "7788:863:1:-;;132:2:-1;166:7;155:9;146:7;137:37;252:7;246:14;243:1;238:23;232:4;229:33;270:1;265:20;;;;222:63;;265:20;274:9;222:63;;298:9;295:1;288:20;328:4;319:7;311:22;352:7;343;336:24", - "deployedSourceMap": "7788:863:1:-;;;;;;;;", - "source": "\n// File: @openzeppelin/contracts/introspection/IERC165.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * [EIP](https://eips.ethereum.org/EIPS/eip-165).\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others (`ERC165Checker`).\n *\n * For an implementation, see `ERC165`.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ncontract IERC721 is IERC165 {\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of NFTs in `owner`'s account.\n */\n function balanceOf(address owner) public view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the NFT specified by `tokenId`.\n */\n function ownerOf(uint256 tokenId) public view returns (address owner);\n\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * \n *\n * Requirements:\n * - `from`, `to` cannot be zero.\n * - `tokenId` must be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this\n * NFT by either `approve` or `setApproveForAll`.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public;\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * Requirements:\n * - If the caller is not `from`, it must be approved to move this NFT by\n * either `approve` or `setApproveForAll`.\n */\n function transferFrom(address from, address to, uint256 tokenId) public;\n function approve(address to, uint256 tokenId) public;\n function getApproved(uint256 tokenId) public view returns (address operator);\n\n function setApprovalForAll(address operator, bool _approved) public;\n function isApprovedForAll(address owner, address operator) public view returns (bool);\n\n\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public;\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ncontract IERC721Receiver {\n /**\n * @notice Handle the receipt of an NFT\n * @dev The ERC721 smart contract calls this function on the recipient\n * after a `safeTransfer`. This function MUST return the function selector,\n * otherwise the caller will revert the transaction. The selector to be\n * returned can be obtained as `this.onERC721Received.selector`. This\n * function MAY throw to revert and reject the transfer.\n * Note: the ERC721 contract address is always the message sender.\n * @param operator The address which called `safeTransferFrom` function\n * @param from The address which previously owned the token\n * @param tokenId The NFT identifier which is being transferred\n * @param data Additional data with no specified format\n * @return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n */\n function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data)\n public returns (bytes4);\n}\n\n// File: @openzeppelin/contracts/math/SafeMath.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\n * checks.\n *\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\n * in bugs, because programmers usually assume that an overflow raises an\n * error, which is the standard behavior in high level programming languages.\n * `SafeMath` restores this intuition by reverting the transaction when an\n * operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeMath {\n /**\n * @dev Returns the addition of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `+` operator.\n *\n * Requirements:\n * - Addition cannot overflow.\n */\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting on\n * overflow (when the result is negative).\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n * - Subtraction cannot overflow.\n */\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b <= a, \"SafeMath: subtraction overflow\");\n uint256 c = a - b;\n\n return c;\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `*` operator.\n *\n * Requirements:\n * - Multiplication cannot overflow.\n */\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers. Reverts on\n * division by zero. The result is rounded towards zero.\n *\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n * uses an invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n // Solidity only automatically asserts when dividing by 0\n require(b > 0, \"SafeMath: division by zero\");\n uint256 c = a / b;\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n return c;\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * Reverts when dividing by zero.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b != 0, \"SafeMath: modulo by zero\");\n return a % b;\n }\n}\n\n// File: @openzeppelin/contracts/utils/Address.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Collection of functions related to the address type,\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * This test is non-exhaustive, and there may be false-negatives: during the\n * execution of a contract's constructor, its address will be reported as\n * not containing a contract.\n *\n * > It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies in extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n}\n\n// File: @openzeppelin/contracts/drafts/Counters.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title Counters\n * @author Matt Condon (@shrugs)\n * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number\n * of elements in a mapping, issuing ERC721 ids, or counting request ids.\n *\n * Include with `using Counters for Counters.Counter;`\n * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath\n * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never\n * directly accessed.\n */\nlibrary Counters {\n using SafeMath for uint256;\n\n struct Counter {\n // This variable should never be directly accessed by users of the library: interactions must be restricted to\n // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add\n // this feature: see https://github.com/ethereum/solidity/issues/4637\n uint256 _value; // default: 0\n }\n\n function current(Counter storage counter) internal view returns (uint256) {\n return counter._value;\n }\n\n function increment(Counter storage counter) internal {\n counter._value += 1;\n }\n\n function decrement(Counter storage counter) internal {\n counter._value = counter._value.sub(1);\n }\n}\n\n// File: @openzeppelin/contracts/introspection/ERC165.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Implementation of the `IERC165` interface.\n *\n * Contracts may inherit from this and call `_registerInterface` to declare\n * their support of an interface.\n */\ncontract ERC165 is IERC165 {\n /*\n * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7\n */\n bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;\n\n /**\n * @dev Mapping of interface ids to whether or not it's supported.\n */\n mapping(bytes4 => bool) private _supportedInterfaces;\n\n constructor () internal {\n // Derived contracts need only register support for their own interfaces,\n // we register support for ERC165 itself here\n _registerInterface(_INTERFACE_ID_ERC165);\n }\n\n /**\n * @dev See `IERC165.supportsInterface`.\n *\n * Time complexity O(1), guaranteed to always use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool) {\n return _supportedInterfaces[interfaceId];\n }\n\n /**\n * @dev Registers the contract as an implementer of the interface defined by\n * `interfaceId`. Support of the actual ERC165 interface is automatic and\n * registering its interface id is not required.\n *\n * See `IERC165.supportsInterface`.\n *\n * Requirements:\n *\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).\n */\n function _registerInterface(bytes4 interfaceId) internal {\n require(interfaceId != 0xffffffff, \"ERC165: invalid interface id\");\n _supportedInterfaces[interfaceId] = true;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n\n\n\n/**\n * @title ERC721 Non-Fungible Token Standard basic implementation\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721 is ERC165, IERC721 {\n using SafeMath for uint256;\n using Address for address;\n using Counters for Counters.Counter;\n\n // Equals to `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`\n bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;\n\n // Mapping from token ID to owner\n mapping (uint256 => address) private _tokenOwner;\n\n // Mapping from token ID to approved address\n mapping (uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to number of owned token\n mapping (address => Counters.Counter) private _ownedTokensCount;\n\n // Mapping from owner to operator approvals\n mapping (address => mapping (address => bool)) private _operatorApprovals;\n\n /*\n * bytes4(keccak256('balanceOf(address)')) == 0x70a08231\n * bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e\n * bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3\n * bytes4(keccak256('getApproved(uint256)')) == 0x081812fc\n * bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465\n * bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c\n * bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd\n * bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e\n * bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde\n *\n * => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^\n * 0xa22cb465 ^ 0xe985e9c ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd\n */\n bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;\n\n constructor () public {\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721);\n }\n\n /**\n * @dev Gets the balance of the specified address.\n * @param owner address to query the balance of\n * @return uint256 representing the amount owned by the passed address\n */\n function balanceOf(address owner) public view returns (uint256) {\n require(owner != address(0), \"ERC721: balance query for the zero address\");\n\n return _ownedTokensCount[owner].current();\n }\n\n /**\n * @dev Gets the owner of the specified token ID.\n * @param tokenId uint256 ID of the token to query the owner of\n * @return address currently marked as the owner of the given token ID\n */\n function ownerOf(uint256 tokenId) public view returns (address) {\n address owner = _tokenOwner[tokenId];\n require(owner != address(0), \"ERC721: owner query for nonexistent token\");\n\n return owner;\n }\n\n /**\n * @dev Approves another address to transfer the given token ID\n * The zero address indicates there is no approved address.\n * There can only be one approved address per token at a given time.\n * Can only be called by the token owner or an approved operator.\n * @param to address to be approved for the given token ID\n * @param tokenId uint256 ID of the token to be approved\n */\n function approve(address to, uint256 tokenId) public {\n address owner = ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(msg.sender == owner || isApprovedForAll(owner, msg.sender),\n \"ERC721: approve caller is not owner nor approved for all\"\n );\n\n _tokenApprovals[tokenId] = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Gets the approved address for a token ID, or zero if no address set\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to query the approval of\n * @return address currently approved for the given token ID\n */\n function getApproved(uint256 tokenId) public view returns (address) {\n require(_exists(tokenId), \"ERC721: approved query for nonexistent token\");\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev Sets or unsets the approval of a given operator\n * An operator is allowed to transfer all tokens of the sender on their behalf.\n * @param to operator address to set the approval\n * @param approved representing the status of the approval to be set\n */\n function setApprovalForAll(address to, bool approved) public {\n require(to != msg.sender, \"ERC721: approve to caller\");\n\n _operatorApprovals[msg.sender][to] = approved;\n emit ApprovalForAll(msg.sender, to, approved);\n }\n\n /**\n * @dev Tells whether an operator is approved by a given owner.\n * @param owner owner address which you want to query the approval of\n * @param operator operator address which you want to query the approval of\n * @return bool whether the given operator is approved by the given owner\n */\n function isApprovedForAll(address owner, address operator) public view returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev Transfers the ownership of a given token ID to another address.\n * Usage of this method is discouraged, use `safeTransferFrom` whenever possible.\n * Requires the msg.sender to be the owner, approved, or operator.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function transferFrom(address from, address to, uint256 tokenId) public {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(msg.sender, tokenId), \"ERC721: transfer caller is not owner nor approved\");\n\n _transferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes data to send along with a safe transfer check\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public {\n transferFrom(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, _data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns whether the specified token exists.\n * @param tokenId uint256 ID of the token to query the existence of\n * @return bool whether the token exists\n */\n function _exists(uint256 tokenId) internal view returns (bool) {\n address owner = _tokenOwner[tokenId];\n return owner != address(0);\n }\n\n /**\n * @dev Returns whether the given spender can transfer a given token ID.\n * @param spender address of the spender to query\n * @param tokenId uint256 ID of the token to be transferred\n * @return bool whether the msg.sender is approved for the given token ID,\n * is an operator of the owner, or is the owner of the token\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view returns (bool) {\n require(_exists(tokenId), \"ERC721: operator query for nonexistent token\");\n address owner = ownerOf(tokenId);\n return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to The address that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _tokenOwner[tokenId] = to;\n _ownedTokensCount[to].increment();\n\n emit Transfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n require(ownerOf(tokenId) == owner, \"ERC721: burn of token that is not own\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[owner].decrement();\n _tokenOwner[tokenId] = address(0);\n\n emit Transfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(uint256 tokenId) internal {\n _burn(ownerOf(tokenId), tokenId);\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n require(ownerOf(tokenId) == from, \"ERC721: transfer of token that is not own\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[from].decrement();\n _ownedTokensCount[to].increment();\n\n _tokenOwner[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n }\n\n /**\n * @dev Internal function to invoke `onERC721Received` on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * This function is deprecated.\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data)\n internal returns (bool)\n {\n if (!to.isContract()) {\n return true;\n }\n\n bytes4 retval = IERC721Receiver(to).onERC721Received(msg.sender, from, tokenId, _data);\n return (retval == _ERC721_RECEIVED);\n }\n\n /**\n * @dev Private function to clear current approval of a given token ID.\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _clearApproval(uint256 tokenId) private {\n if (_tokenApprovals[tokenId] != address(0)) {\n _tokenApprovals[tokenId] = address(0);\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Enumerable is IERC721 {\n function totalSupply() public view returns (uint256);\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256 tokenId);\n\n function tokenByIndex(uint256 index) public view returns (uint256);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title ERC-721 Non-Fungible Token with optional enumeration extension logic\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Enumerable is ERC165, ERC721, IERC721Enumerable {\n // Mapping from owner to list of owned token IDs\n mapping(address => uint256[]) private _ownedTokens;\n\n // Mapping from token ID to index of the owner tokens list\n mapping(uint256 => uint256) private _ownedTokensIndex;\n\n // Array with all token ids, used for enumeration\n uint256[] private _allTokens;\n\n // Mapping from token id to position in the allTokens array\n mapping(uint256 => uint256) private _allTokensIndex;\n\n /*\n * bytes4(keccak256('totalSupply()')) == 0x18160ddd\n * bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59\n * bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7\n *\n * => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63\n */\n bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;\n\n /**\n * @dev Constructor function.\n */\n constructor () public {\n // register the supported interface to conform to ERC721Enumerable via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);\n }\n\n /**\n * @dev Gets the token ID at a given index of the tokens list of the requested owner.\n * @param owner address owning the tokens list to be accessed\n * @param index uint256 representing the index to be accessed of the requested tokens list\n * @return uint256 token ID at the given index of the tokens list owned by the requested address\n */\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) {\n require(index < balanceOf(owner), \"ERC721Enumerable: owner index out of bounds\");\n return _ownedTokens[owner][index];\n }\n\n /**\n * @dev Gets the total amount of tokens stored by the contract.\n * @return uint256 representing the total amount of tokens\n */\n function totalSupply() public view returns (uint256) {\n return _allTokens.length;\n }\n\n /**\n * @dev Gets the token ID at a given index of all the tokens in this contract\n * Reverts if the index is greater or equal to the total number of tokens.\n * @param index uint256 representing the index to be accessed of the tokens list\n * @return uint256 token ID at the given index of the tokens list\n */\n function tokenByIndex(uint256 index) public view returns (uint256) {\n require(index < totalSupply(), \"ERC721Enumerable: global index out of bounds\");\n return _allTokens[index];\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n super._transferFrom(from, to, tokenId);\n\n _removeTokenFromOwnerEnumeration(from, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to address the beneficiary that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n super._mint(to, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n\n _addTokenToAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n _removeTokenFromOwnerEnumeration(owner, tokenId);\n // Since tokenId will be deleted, we can clear its slot in _ownedTokensIndex to trigger a gas refund\n _ownedTokensIndex[tokenId] = 0;\n\n _removeTokenFromAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Gets the list of token IDs of the requested owner.\n * @param owner address owning the tokens\n * @return uint256[] List of token IDs owned by the requested address\n */\n function _tokensOfOwner(address owner) internal view returns (uint256[] storage) {\n return _ownedTokens[owner];\n }\n\n /**\n * @dev Private function to add a token to this extension's ownership-tracking data structures.\n * @param to address representing the new owner of the given token ID\n * @param tokenId uint256 ID of the token to be added to the tokens list of the given address\n */\n function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {\n _ownedTokensIndex[tokenId] = _ownedTokens[to].length;\n _ownedTokens[to].push(tokenId);\n }\n\n /**\n * @dev Private function to add a token to this extension's token tracking data structures.\n * @param tokenId uint256 ID of the token to be added to the tokens list\n */\n function _addTokenToAllTokensEnumeration(uint256 tokenId) private {\n _allTokensIndex[tokenId] = _allTokens.length;\n _allTokens.push(tokenId);\n }\n\n /**\n * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\n * while the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\n * gas optimizations e.g. when performing a transfer operation (avoiding double writes).\n * This has O(1) time complexity, but alters the order of the _ownedTokens array.\n * @param from address representing the previous owner of the given token ID\n * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address\n */\n function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {\n // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _ownedTokens[from].length.sub(1);\n uint256 tokenIndex = _ownedTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary\n if (tokenIndex != lastTokenIndex) {\n uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];\n\n _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n }\n\n // This also deletes the contents at the last position of the array\n _ownedTokens[from].length--;\n\n // Note that _ownedTokensIndex[tokenId] hasn't been cleared: it still points to the old slot (now occupied by\n // lastTokenId, or just over the end of the array if the token was the last one).\n }\n\n /**\n * @dev Private function to remove a token from this extension's token tracking data structures.\n * This has O(1) time complexity, but alters the order of the _allTokens array.\n * @param tokenId uint256 ID of the token to be removed from the tokens list\n */\n function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {\n // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _allTokens.length.sub(1);\n uint256 tokenIndex = _allTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so\n // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding\n // an 'if' statement (like in _removeTokenFromOwnerEnumeration)\n uint256 lastTokenId = _allTokens[lastTokenIndex];\n\n _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n\n // This also deletes the contents at the last position of the array\n _allTokens.length--;\n _allTokensIndex[tokenId] = 0;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Metadata is IERC721 {\n function name() external view returns (string memory);\n function symbol() external view returns (string memory);\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n\n\ncontract ERC721Metadata is ERC165, ERC721, IERC721Metadata {\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Optional mapping for token URIs\n mapping(uint256 => string) private _tokenURIs;\n\n /*\n * bytes4(keccak256('name()')) == 0x06fdde03\n * bytes4(keccak256('symbol()')) == 0x95d89b41\n * bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd\n *\n * => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f\n */\n bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;\n\n /**\n * @dev Constructor function\n */\n constructor (string memory name, string memory symbol) public {\n _name = name;\n _symbol = symbol;\n\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_METADATA);\n }\n\n /**\n * @dev Gets the token name.\n * @return string representing the token name\n */\n function name() external view returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Gets the token symbol.\n * @return string representing the token symbol\n */\n function symbol() external view returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns an URI for a given token ID.\n * Throws if the token ID does not exist. May return an empty string.\n * @param tokenId uint256 ID of the token to query\n */\n function tokenURI(uint256 tokenId) external view returns (string memory) {\n require(_exists(tokenId), \"ERC721Metadata: URI query for nonexistent token\");\n return _tokenURIs[tokenId];\n }\n\n /**\n * @dev Internal function to set the token URI for a given token.\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to set its URI\n * @param uri string URI to assign\n */\n function _setTokenURI(uint256 tokenId, string memory uri) internal {\n require(_exists(tokenId), \"ERC721Metadata: URI set of nonexistent token\");\n _tokenURIs[tokenId] = uri;\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned by the msg.sender\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n // Clear metadata (if any)\n if (bytes(_tokenURIs[tokenId]).length != 0) {\n delete _tokenURIs[tokenId];\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Full.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title Full ERC721 Token\n * This implementation includes all the required and some optional functionality of the ERC721 standard\n * Moreover, it includes approve all functionality using operator terminology\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Full is ERC721, ERC721Enumerable, ERC721Metadata {\n constructor (string memory name, string memory symbol) public ERC721Metadata(name, symbol) {\n // solhint-disable-previous-line no-empty-blocks\n }\n}\n", - "sourcePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "ast": { - "absolutePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "exportedSymbols": { - "Address": [ - 289 - ], - "Counters": [ - 336 - ], - "ERC165": [ - 386 - ], - "ERC721": [ - 944 - ], - "ERC721Enumerable": [ - 1302 - ], - "ERC721Full": [ - 1468 - ], - "ERC721Metadata": [ - 1448 - ], - "IERC165": [ - 23 - ], - "IERC721": [ - 124 - ], - "IERC721Enumerable": [ - 969 - ], - "IERC721Metadata": [ - 1323 - ], - "IERC721Receiver": [ - 139 - ], - "SafeMath": [ - 271 - ] - }, - "id": 1469, - "nodeType": "SourceUnit", - "nodes": [ - { - "id": 15, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "61:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "interface", - "documentation": "@dev Interface of the ERC165 standard, as defined in the\n[EIP](https://eips.ethereum.org/EIPS/eip-165).\n * Implementers can declare support of contract interfaces, which can then be\nqueried by others (`ERC165Checker`).\n * For an implementation, see `ERC165`.", - "fullyImplemented": false, - "id": 23, - "linearizedBaseContracts": [ - 23 - ], - "name": "IERC165", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@dev Returns true if this contract implements the interface defined by\n`interfaceId`. 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This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. This\nfunction MAY throw to revert and reject the transfer.\nNote: the ERC721 contract address is always the message sender.\n@param operator The address which called `safeTransferFrom` function\n@param from The address which previously owned the token\n@param tokenId The NFT identifier which is being transferred\n@param data Additional data with no specified format\n@return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`", - "id": 138, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "onERC721Received", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 134, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 127, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3960:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 126, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "3960:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 129, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3978:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 128, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "3978:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 131, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3992:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 130, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "3992:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 133, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "4009:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 132, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "4009:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "3959:68:1" - }, - "returnParameters": { - "id": 137, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 136, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "4048:6:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 135, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "4048:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "4047:8:1" - }, - "scope": 139, - "src": "3934:122:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "3045:1013:1" - }, - { - "id": 140, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "4112:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "library", - "documentation": "@dev Wrappers over Solidity's arithmetic operations with added overflow\nchecks.\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\nin bugs, because programmers usually assume that an overflow raises an\nerror, which is the standard behavior in high level programming languages.\n`SafeMath` restores this intuition by reverting the transaction when an\noperation overflows.\n * Using this library instead of the unchecked operations eliminates an entire\nclass of bugs, so it's recommended to use it always.", - "fullyImplemented": true, - "id": 271, - "linearizedBaseContracts": [ - 271 - ], - "name": "SafeMath", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": { - "id": 164, - "nodeType": "Block", - "src": "5013:109:1", - "statements": [ - { - "assignments": [ - 150 - ], - "declarations": [ - { - "constant": false, - "id": 150, - "name": "c", - "nodeType": "VariableDeclaration", - "scope": 164, - "src": "5023:9:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 149, - 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"names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - 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Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - 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"typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "29224:15:1" - }, - "returnParameters": { - "id": 1146, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1145, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 1152, - "src": "29263:17:1", - "stateVariable": false, - "storageLocation": "storage", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - }, - "typeName": { - "baseType": { - "id": 1143, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "29263:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1144, - "length": null, - "nodeType": "ArrayTypeName", - "src": "29263:9:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - } - }, - "value": null, - "visibility": "internal" - 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"src": "30073:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1184, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30100:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1185, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30100:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "30073:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1187, - "nodeType": "ExpressionStatement", - "src": "30073:44:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1191, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1178, - "src": "30143:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1188, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30127:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1190, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "push", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30127:15:1", - "typeDescriptions": { - "typeIdentifier": "t_function_arraypush_nonpayable$_t_uint256_$returns$_t_uint256_$", - "typeString": "function (uint256) returns (uint256)" - } - }, - "id": 1192, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "30127:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1193, - "nodeType": "ExpressionStatement", - "src": "30127:24:1" - } - ] - }, - "documentation": "@dev Private function to add a token to this extension's token tracking data structures.\n@param tokenId uint256 ID of the token to be added to the tokens list", - "id": 1195, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1179, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1178, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1195, - "src": "30038:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1177, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30038:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30037:17:1" - }, - "returnParameters": { - "id": 1180, - "nodeType": "ParameterList", - "parameters": [], - "src": "30063:0:1" - }, - "scope": 1302, - "src": "29997:161:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1251, - "nodeType": "Block", - "src": "30854:1047:1", - "statements": [ - { - "assignments": [ - 1203 - ], - "declarations": [ - { - "constant": false, - "id": 1203, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1251, - "src": "31035:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1202, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31035:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1211, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1209, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "31090:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1204, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31060:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1206, - "indexExpression": { - "argumentTypes": null, - "id": 1205, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31073:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31060:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1207, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31060:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1208, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "31060:29:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1210, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "31060:32:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31035:57:1" - }, - { - "assignments": [ - 1213 - ], - "declarations": [ - { - "constant": false, - "id": 1213, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1251, - "src": "31102:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1212, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31102:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1217, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1214, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31123:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1216, - "indexExpression": { - "argumentTypes": null, - "id": 1215, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1199, - "src": "31141:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31123:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31102:47:1" - }, - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "id": 1220, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 1218, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31253:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "id": 1219, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31267:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31253:28:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 1244, - "nodeType": "IfStatement", - "src": "31249:323:1", - "trueBody": { - "id": 1243, - "nodeType": "Block", - "src": "31283:289:1", - "statements": [ - { - "assignments": [ - 1222 - ], - "declarations": [ - { - "constant": false, - "id": 1222, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1243, - "src": "31297:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1221, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31297:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1228, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1223, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31319:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1225, - "indexExpression": { - "argumentTypes": null, - "id": 1224, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31332:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1227, - "indexExpression": { - "argumentTypes": null, - "id": 1226, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31338:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:34:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - 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"isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - 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"typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 47, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "1257:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1207:64:1" - }, - "src": "1187:85:1" - }, - { - "body": null, - "documentation": "@dev Returns the number of NFTs in `owner`'s account.", - "id": 57, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "balanceOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 53, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 52, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 57, - "src": "1374:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 51, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1374:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1373:15:1" - }, - "returnParameters": { - "id": 56, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 55, - "name": "balance", - "nodeType": "VariableDeclaration", - "scope": 57, - "src": "1410:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 54, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1410:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1409:17:1" - }, - "scope": 124, - "src": "1355:72:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Returns the owner of the NFT specified by `tokenId`.", - "id": 64, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "ownerOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 60, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 59, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1531:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 58, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1531:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1530:17:1" - }, - "returnParameters": { - "id": 63, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 62, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1569:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 61, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1569:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1568:15:1" - }, - "scope": 124, - "src": "1514:70:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * \n * Requirements:\n- `from`, `to` cannot be zero.\n- `tokenId` must be owned by `from`.\n- If the caller is not `from`, it must be have been allowed to move this\nNFT by either `approve` or `setApproveForAll`.", - "id": 73, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 71, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 66, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "1992:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 65, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1992:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 68, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2006:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 67, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2006:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 70, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2018:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 69, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2018:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1991:43:1" - }, - "returnParameters": { - "id": 72, - "nodeType": "ParameterList", - "parameters": [], - "src": "2041:0:1" - }, - "scope": 124, - "src": "1966:76:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * Requirements:\n- If the caller is not `from`, it must be approved to move this NFT by\neither `approve` or `setApproveForAll`.", - "id": 82, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 80, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 75, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2339:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 74, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2339:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 77, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2353:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 76, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2353:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 79, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2365:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 78, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2365:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2338:43:1" - }, - "returnParameters": { - "id": 81, - "nodeType": "ParameterList", - "parameters": [], - "src": "2388:0:1" - }, - "scope": 124, - "src": "2317:72:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 89, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "approve", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 87, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 84, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2411:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 83, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2411:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 86, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2423:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 85, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2423:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2410:29:1" - }, - "returnParameters": { - "id": 88, - "nodeType": "ParameterList", - "parameters": [], - "src": "2446:0:1" - }, - "scope": 124, - "src": "2394:53:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 96, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "getApproved", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 92, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 91, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2473:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 90, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2473:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2472:17:1" - }, - "returnParameters": { - "id": 95, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 94, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2511:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 93, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2511:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2510:18:1" - }, - "scope": 124, - "src": "2452:77:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 103, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "setApprovalForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 101, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 98, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2562:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 97, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2562:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 100, - "name": "_approved", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2580:14:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 99, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2580:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2561:34:1" - }, - "returnParameters": { - "id": 102, - "nodeType": "ParameterList", - "parameters": [], - "src": "2602:0:1" - }, - "scope": 124, - "src": "2535:68:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 112, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "isApprovedForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 108, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 105, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2634:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 104, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2634:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 107, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2649:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 106, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2649:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2633:33:1" - }, - "returnParameters": { - "id": 111, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 110, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2688:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 109, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2688:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2687:6:1" - }, - "scope": 124, - "src": "2608:86:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 123, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 121, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 114, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2727:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 113, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2727:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 116, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2741:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 115, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2741:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 118, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2753:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 117, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2753:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 120, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2770:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 119, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "2770:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2726:62:1" - }, - "returnParameters": { - "id": 122, - "nodeType": "ParameterList", - "parameters": [], - "src": "2795:0:1" - }, - "scope": 124, - "src": "2701:95:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "972:1826:1" - }, - { - "id": 125, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "2867:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "contract", - "documentation": "@title ERC721 token receiver interface\n@dev Interface for any contract that wants to support safeTransfers\nfrom ERC721 asset contracts.", - "fullyImplemented": false, - "id": 139, - "linearizedBaseContracts": [ - 139 - ], - "name": "IERC721Receiver", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@notice Handle the receipt of an NFT\n@dev The ERC721 smart contract calls this function on the recipient\nafter a `safeTransfer`. This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. 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"names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - 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Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - }, - "returnParameters": { - "id": 370, - "nodeType": "ParameterList", - "parameters": [], - "src": "11598:0:1" - }, - "scope": 386, - "src": "11541:190:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "10321:1412:1" - }, - { - "id": 387, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "11793:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 388, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "11968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 389, - "nodeType": "InheritanceSpecifier", - "src": "11968:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 390, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "11976:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 391, - "nodeType": "InheritanceSpecifier", - "src": "11976:7:1" - } - ], - "contractDependencies": [ - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 944, - "linearizedBaseContracts": [ - 944, - 124, - 386, - 23 - ], - "name": "ERC721", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 394, - "libraryName": { - "contractScope": null, - "id": 392, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "11996:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "11990:27:1", - "typeName": { - "id": 393, - "name": "uint256", - 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"typeString": "library Counters" - } - }, - "nodeType": "UsingForDirective", - "src": "12053:36:1", - "typeName": { - "contractScope": null, - "id": 399, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12072:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - { - "constant": true, - "id": 403, - "name": "_ERC721_RECEIVED", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12267:53:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 401, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "12267:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783135306237613032", - "id": 402, - "isConstant": false, - 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"typeIdentifier": "t_mapping$_t_address_$_t_struct$_Counter_$296_storage_$", - "typeString": "mapping(address => struct Counters.Counter)" - }, - "valueType": { - "contractScope": null, - "id": 413, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12599:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 421, - "name": "_operatorApprovals", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12697:73:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", - "typeString": "mapping(address => mapping(address => bool))" - }, - "typeName": { - "id": 420, - "keyType": { - "id": 416, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12706:7:1", - 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"nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "27799:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1077, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27799:47:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1078, - "nodeType": "ExpressionStatement", - "src": "27799:47:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1080, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1061, - "src": "27885:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1081, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1063, - "src": "27889:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1079, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "27857:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1082, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27857:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1083, - "nodeType": "ExpressionStatement", - "src": "27857:40:1" - } - ] - }, - "documentation": "@dev Internal function to transfer ownership of a given token ID to another address.\nAs opposed to transferFrom, this imposes no restrictions on msg.sender.\n@param from current owner of the token\n@param to address to receive the ownership of the given token ID\n@param tokenId uint256 ID of the token to be transferred", - "id": 1085, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1064, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1059, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27688:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1058, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27688:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1061, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27702:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1060, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27702:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1063, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27714:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1062, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "27714:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "27687:43:1" - }, - "returnParameters": { - "id": 1065, - "nodeType": "ParameterList", - "parameters": [], - "src": "27740:0:1" - }, - "scope": 1302, - "src": "27665:239:1", - "stateMutability": "nonpayable", - "superFunction": 880, - "visibility": "internal" - }, - { - "body": { - "id": 1108, - "nodeType": "Block", - "src": "28214:143:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1095, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28236:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1096, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28240:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1092, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28224:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1094, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_mint", - "nodeType": "MemberAccess", - "referencedDeclaration": 768, - "src": "28224:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1097, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28224:24:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1098, - "nodeType": "ExpressionStatement", - "src": "28224:24:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1100, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28287:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1101, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28291:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1099, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "28259:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1102, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28259:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1103, - "nodeType": "ExpressionStatement", - "src": "28259:40:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1105, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28342:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1104, - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1195, - "src": "28310:31:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1106, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28310:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1107, - "nodeType": "ExpressionStatement", - "src": "28310:40:1" - } - ] - }, - "documentation": "@dev Internal function to mint a new token.\nReverts if the given token ID already exists.\n@param to address the beneficiary that will own the minted token\n@param tokenId uint256 ID of the token to be minted", - "id": 1109, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_mint", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1090, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1087, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28176:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1086, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28176:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1089, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28188:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1088, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28188:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28175:29:1" - }, - "returnParameters": { - "id": 1091, - "nodeType": "ParameterList", - "parameters": [], - "src": "28214:0:1" - }, - "scope": 1302, - "src": "28161:196:1", - "stateMutability": "nonpayable", - "superFunction": 768, - "visibility": "internal" - }, - { - "body": { - "id": 1138, - "nodeType": "Block", - "src": "28688:308:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1119, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28710:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1120, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28717:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1116, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28698:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1118, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_burn", - "nodeType": "MemberAccess", - "referencedDeclaration": 811, - "src": "28698:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1121, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28698:27:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1122, - "nodeType": "ExpressionStatement", - "src": "28698:27:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1124, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28769:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1125, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28776:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1123, - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "28736:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1126, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28736:48:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1127, - "nodeType": "ExpressionStatement", - "src": "28736:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1132, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1128, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "28903:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1130, - "indexExpression": { - "argumentTypes": null, - "id": 1129, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28921:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "28903:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1131, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "28932:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "28903:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1133, - "nodeType": "ExpressionStatement", - "src": "28903:30:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1135, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28981:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1134, - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1301, - "src": "28944:36:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1136, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28944:45:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1137, - "nodeType": "ExpressionStatement", - "src": "28944:45:1" - } - ] - }, - "documentation": "@dev Internal function to burn a specific token.\nReverts if the token does not exist.\nDeprecated, use _burn(uint256) instead.\n@param owner owner of the token to burn\n@param tokenId uint256 ID of the token being burned", - "id": 1139, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_burn", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1114, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1111, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28647:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1110, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28647:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1113, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28662:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1112, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28662:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28646:32:1" - }, - "returnParameters": { - "id": 1115, - "nodeType": "ParameterList", - "parameters": [], - "src": "28688:0:1" - }, - "scope": 1302, - "src": "28632:364:1", - "stateMutability": "nonpayable", - "superFunction": 811, - "visibility": "internal" - 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"typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "32485:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1259, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32463:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1260, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "32463:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1261, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1265, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32497:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1270, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1267, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "32518:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1269, - "indexExpression": { - "argumentTypes": null, - "id": 1268, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "32534:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32518:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32497:45:1" - }, - { - "assignments": [ - 1272 - ], - "declarations": [ - { - "constant": false, - "id": 1272, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32864:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1271, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32864:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1276, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1273, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32886:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1275, - "indexExpression": { - "argumentTypes": null, - "id": 1274, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1258, - "src": "32897:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32886:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32864:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1281, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1277, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32923:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1279, - "indexExpression": { - "argumentTypes": null, - "id": 1278, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "32934:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "32923:22:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1280, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "32948:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "32923:36:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1282, - "nodeType": "ExpressionStatement", - "src": "32923:36:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1287, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1283, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33027:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1285, - "indexExpression": { - "argumentTypes": null, - "id": 1284, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "33043:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33027:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1286, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "33058:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "33027:41:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1288, - "nodeType": "ExpressionStatement", - "src": "33027:41:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1292, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "33189:19:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1289, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "33189:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1291, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "33189:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1293, - "nodeType": "ExpressionStatement", - "src": "33189:19:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1298, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1294, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33218:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1296, - "indexExpression": { - "argumentTypes": null, - "id": 1295, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "33234:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33218:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1297, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "33245:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "33218:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1299, - "nodeType": "ExpressionStatement", - "src": "33218:28:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's token tracking data structures.\nThis has O(1) time complexity, but alters the order of the _allTokens array.\n@param tokenId uint256 ID of the token to be removed from the tokens list", - "id": 1301, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1255, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1254, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1301, - "src": "32235:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1253, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32235:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "32234:17:1" - }, - "returnParameters": { - "id": 1256, - "nodeType": "ParameterList", - "parameters": [], - "src": "32260:0:1" - }, - "scope": 1302, - "src": "32189:1064:1", - "stateMutability": "nonpayable", - 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- "source": "pragma solidity 0.5.0;\n\nimport \"./ERC721Full.sol\";\n\ncontract Color is ERC721Full {\n string[] public colors;\n mapping(string => bool) _colorExists;\n\n constructor() ERC721Full(\"Color\", \"COLOR\") public {\n }\n\n // E.G. color = \"#FFFFFF\"\n function mint(string memory _color) public {\n require(!_colorExists[_color]);\n uint _id = colors.push(_color);\n _mint(msg.sender, _id);\n _colorExists[_color] = true;\n }\n\n}\n", - "sourcePath": "/Users/gregory/code/nft/src/contracts/Color.sol", - "ast": { - "absolutePath": "/Users/gregory/code/nft/src/contracts/Color.sol", - "exportedSymbols": { - "Color": [ - 52 - ] - }, - "id": 53, - "nodeType": "SourceUnit", - "nodes": [ - { - "id": 1, - "literals": [ - "solidity", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "0:22:0" - }, - { - "absolutePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "file": "./ERC721Full.sol", - "id": 2, - "nodeType": "ImportDirective", - "scope": 53, - 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{ - "approve(address,uint256)": { - "details": "Approves another address to transfer the given token ID The zero address indicates there is no approved address. There can only be one approved address per token at a given time. Can only be called by the token owner or an approved operator.", - "params": { - "to": "address to be approved for the given token ID", - "tokenId": "uint256 ID of the token to be approved" - } - }, - "balanceOf(address)": { - "details": "Gets the balance of the specified address.", - "params": { - "owner": "address to query the balance of" - }, - "return": "uint256 representing the amount owned by the passed address" - }, - "getApproved(uint256)": { - "details": "Gets the approved address for a token ID, or zero if no address set Reverts if the token ID does not exist.", - "params": { - "tokenId": "uint256 ID of the token to query the approval of" - }, - "return": "address currently approved for the given token ID" - }, - "isApprovedForAll(address,address)": { - "details": "Tells whether an operator is approved by a given owner.", - "params": { - "operator": "operator address which you want to query the approval of", - "owner": "owner address which you want to query the approval of" - }, - "return": "bool whether the given operator is approved by the given owner" - }, - "name()": { - "details": "Gets the token name.", - "return": "string representing the token name" - }, - "ownerOf(uint256)": { - "details": "Gets the owner of the specified token ID.", - "params": { - "tokenId": "uint256 ID of the token to query the owner of" - }, - "return": "address currently marked as the owner of the given token ID" - }, - "safeTransferFrom(address,address,uint256)": { - "details": "Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise, the transfer is reverted. Requires the msg.sender to be the owner, approved, or operator", - "params": { - "from": "current owner of the token", - "to": "address to receive the ownership of the given token ID", - "tokenId": "uint256 ID of the token to be transferred" - } - }, - "safeTransferFrom(address,address,uint256,bytes)": { - "details": "Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise, the transfer is reverted. Requires the msg.sender to be the owner, approved, or operator", - "params": { - "_data": "bytes data to send along with a safe transfer check", - "from": "current owner of the token", - "to": "address to receive the ownership of the given token ID", - "tokenId": "uint256 ID of the token to be transferred" - } - }, - "setApprovalForAll(address,bool)": { - "details": "Sets or unsets the approval of a given operator An operator is allowed to transfer all tokens of the sender on their behalf.", - "params": { - "approved": "representing the status of the approval to be set", - "to": "operator address to set the approval" - } - }, - "supportsInterface(bytes4)": { - "details": "See `IERC165.supportsInterface`. * Time complexity O(1), guaranteed to always use less than 30 000 gas." - }, - "symbol()": { - "details": "Gets the token symbol.", - "return": "string representing the token symbol" - }, - "tokenByIndex(uint256)": { - "details": "Gets the token ID at a given index of all the tokens in this contract Reverts if the index is greater or equal to the total number of tokens.", - "params": { - "index": "uint256 representing the index to be accessed of the tokens list" - }, - "return": "uint256 token ID at the given index of the tokens list" - }, - "tokenOfOwnerByIndex(address,uint256)": { - "details": "Gets the token ID at a given index of the tokens list of the requested owner.", - "params": { - "index": "uint256 representing the index to be accessed of the requested tokens list", - "owner": "address owning the tokens list to be accessed" - }, - "return": "uint256 token ID at the given index of the tokens list owned by the requested address" - }, - "tokenURI(uint256)": { - "details": "Returns an URI for a given token ID. Throws if the token ID does not exist. May return an empty string.", - "params": { - "tokenId": "uint256 ID of the token to query" - } - }, - "totalSupply()": { - "details": "Gets the total amount of tokens stored by the contract.", - "return": "uint256 representing the total amount of tokens" - }, - "transferFrom(address,address,uint256)": { - "details": "Transfers the ownership of a given token ID to another address. Usage of this method is discouraged, use `safeTransferFrom` whenever possible. Requires the msg.sender to be the owner, approved, or operator.", - "params": { - "from": "current owner of the token", - "to": "address to receive the ownership of the given token ID", - "tokenId": "uint256 ID of the token to be transferred" - } - } - } - }, - "userdoc": { - "methods": {} - } -} \ No newline at end of file diff --git a/src/abis/Counters.json b/src/abis/Counters.json deleted file mode 100644 index 8dc6f02..0000000 --- a/src/abis/Counters.json +++ /dev/null @@ -1,37450 +0,0 @@ -{ - "contractName": "Counters", - "abi": [], - "bytecode": "0x604c602c600b82828239805160001a60731460008114601c57601e565bfe5b5030600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea165627a7a72305820f19ec424b82475ebe631f2854b885dcc95da62364ec8658a04f38c5c0641a8ab0029", - "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea165627a7a72305820f19ec424b82475ebe631f2854b885dcc95da62364ec8658a04f38c5c0641a8ab0029", - "sourceMap": "9303:759:1:-;;132:2:-1;166:7;155:9;146:7;137:37;252:7;246:14;243:1;238:23;232:4;229:33;270:1;265:20;;;;222:63;;265:20;274:9;222:63;;298:9;295:1;288:20;328:4;319:7;311:22;352:7;343;336:24", - "deployedSourceMap": "9303:759:1:-;;;;;;;;", - "source": "\n// File: @openzeppelin/contracts/introspection/IERC165.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * [EIP](https://eips.ethereum.org/EIPS/eip-165).\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others (`ERC165Checker`).\n *\n * For an implementation, see `ERC165`.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ncontract IERC721 is IERC165 {\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of NFTs in `owner`'s account.\n */\n function balanceOf(address owner) public view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the NFT specified by `tokenId`.\n */\n function ownerOf(uint256 tokenId) public view returns (address owner);\n\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * \n *\n * Requirements:\n * - `from`, `to` cannot be zero.\n * - `tokenId` must be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this\n * NFT by either `approve` or `setApproveForAll`.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public;\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * Requirements:\n * - If the caller is not `from`, it must be approved to move this NFT by\n * either `approve` or `setApproveForAll`.\n */\n function transferFrom(address from, address to, uint256 tokenId) public;\n function approve(address to, uint256 tokenId) public;\n function getApproved(uint256 tokenId) public view returns (address operator);\n\n function setApprovalForAll(address operator, bool _approved) public;\n function isApprovedForAll(address owner, address operator) public view returns (bool);\n\n\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public;\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ncontract IERC721Receiver {\n /**\n * @notice Handle the receipt of an NFT\n * @dev The ERC721 smart contract calls this function on the recipient\n * after a `safeTransfer`. This function MUST return the function selector,\n * otherwise the caller will revert the transaction. The selector to be\n * returned can be obtained as `this.onERC721Received.selector`. This\n * function MAY throw to revert and reject the transfer.\n * Note: the ERC721 contract address is always the message sender.\n * @param operator The address which called `safeTransferFrom` function\n * @param from The address which previously owned the token\n * @param tokenId The NFT identifier which is being transferred\n * @param data Additional data with no specified format\n * @return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n */\n function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data)\n public returns (bytes4);\n}\n\n// File: @openzeppelin/contracts/math/SafeMath.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\n * checks.\n *\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\n * in bugs, because programmers usually assume that an overflow raises an\n * error, which is the standard behavior in high level programming languages.\n * `SafeMath` restores this intuition by reverting the transaction when an\n * operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeMath {\n /**\n * @dev Returns the addition of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `+` operator.\n *\n * Requirements:\n * - Addition cannot overflow.\n */\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting on\n * overflow (when the result is negative).\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n * - Subtraction cannot overflow.\n */\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b <= a, \"SafeMath: subtraction overflow\");\n uint256 c = a - b;\n\n return c;\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `*` operator.\n *\n * Requirements:\n * - Multiplication cannot overflow.\n */\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers. Reverts on\n * division by zero. The result is rounded towards zero.\n *\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n * uses an invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n // Solidity only automatically asserts when dividing by 0\n require(b > 0, \"SafeMath: division by zero\");\n uint256 c = a / b;\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n return c;\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * Reverts when dividing by zero.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b != 0, \"SafeMath: modulo by zero\");\n return a % b;\n }\n}\n\n// File: @openzeppelin/contracts/utils/Address.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Collection of functions related to the address type,\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * This test is non-exhaustive, and there may be false-negatives: during the\n * execution of a contract's constructor, its address will be reported as\n * not containing a contract.\n *\n * > It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies in extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n}\n\n// File: @openzeppelin/contracts/drafts/Counters.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title Counters\n * @author Matt Condon (@shrugs)\n * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number\n * of elements in a mapping, issuing ERC721 ids, or counting request ids.\n *\n * Include with `using Counters for Counters.Counter;`\n * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath\n * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never\n * directly accessed.\n */\nlibrary Counters {\n using SafeMath for uint256;\n\n struct Counter {\n // This variable should never be directly accessed by users of the library: interactions must be restricted to\n // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add\n // this feature: see https://github.com/ethereum/solidity/issues/4637\n uint256 _value; // default: 0\n }\n\n function current(Counter storage counter) internal view returns (uint256) {\n return counter._value;\n }\n\n function increment(Counter storage counter) internal {\n counter._value += 1;\n }\n\n function decrement(Counter storage counter) internal {\n counter._value = counter._value.sub(1);\n }\n}\n\n// File: @openzeppelin/contracts/introspection/ERC165.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Implementation of the `IERC165` interface.\n *\n * Contracts may inherit from this and call `_registerInterface` to declare\n * their support of an interface.\n */\ncontract ERC165 is IERC165 {\n /*\n * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7\n */\n bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;\n\n /**\n * @dev Mapping of interface ids to whether or not it's supported.\n */\n mapping(bytes4 => bool) private _supportedInterfaces;\n\n constructor () internal {\n // Derived contracts need only register support for their own interfaces,\n // we register support for ERC165 itself here\n _registerInterface(_INTERFACE_ID_ERC165);\n }\n\n /**\n * @dev See `IERC165.supportsInterface`.\n *\n * Time complexity O(1), guaranteed to always use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool) {\n return _supportedInterfaces[interfaceId];\n }\n\n /**\n * @dev Registers the contract as an implementer of the interface defined by\n * `interfaceId`. Support of the actual ERC165 interface is automatic and\n * registering its interface id is not required.\n *\n * See `IERC165.supportsInterface`.\n *\n * Requirements:\n *\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).\n */\n function _registerInterface(bytes4 interfaceId) internal {\n require(interfaceId != 0xffffffff, \"ERC165: invalid interface id\");\n _supportedInterfaces[interfaceId] = true;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n\n\n\n/**\n * @title ERC721 Non-Fungible Token Standard basic implementation\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721 is ERC165, IERC721 {\n using SafeMath for uint256;\n using Address for address;\n using Counters for Counters.Counter;\n\n // Equals to `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`\n bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;\n\n // Mapping from token ID to owner\n mapping (uint256 => address) private _tokenOwner;\n\n // Mapping from token ID to approved address\n mapping (uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to number of owned token\n mapping (address => Counters.Counter) private _ownedTokensCount;\n\n // Mapping from owner to operator approvals\n mapping (address => mapping (address => bool)) private _operatorApprovals;\n\n /*\n * bytes4(keccak256('balanceOf(address)')) == 0x70a08231\n * bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e\n * bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3\n * bytes4(keccak256('getApproved(uint256)')) == 0x081812fc\n * bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465\n * bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c\n * bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd\n * bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e\n * bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde\n *\n * => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^\n * 0xa22cb465 ^ 0xe985e9c ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd\n */\n bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;\n\n constructor () public {\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721);\n }\n\n /**\n * @dev Gets the balance of the specified address.\n * @param owner address to query the balance of\n * @return uint256 representing the amount owned by the passed address\n */\n function balanceOf(address owner) public view returns (uint256) {\n require(owner != address(0), \"ERC721: balance query for the zero address\");\n\n return _ownedTokensCount[owner].current();\n }\n\n /**\n * @dev Gets the owner of the specified token ID.\n * @param tokenId uint256 ID of the token to query the owner of\n * @return address currently marked as the owner of the given token ID\n */\n function ownerOf(uint256 tokenId) public view returns (address) {\n address owner = _tokenOwner[tokenId];\n require(owner != address(0), \"ERC721: owner query for nonexistent token\");\n\n return owner;\n }\n\n /**\n * @dev Approves another address to transfer the given token ID\n * The zero address indicates there is no approved address.\n * There can only be one approved address per token at a given time.\n * Can only be called by the token owner or an approved operator.\n * @param to address to be approved for the given token ID\n * @param tokenId uint256 ID of the token to be approved\n */\n function approve(address to, uint256 tokenId) public {\n address owner = ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(msg.sender == owner || isApprovedForAll(owner, msg.sender),\n \"ERC721: approve caller is not owner nor approved for all\"\n );\n\n _tokenApprovals[tokenId] = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Gets the approved address for a token ID, or zero if no address set\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to query the approval of\n * @return address currently approved for the given token ID\n */\n function getApproved(uint256 tokenId) public view returns (address) {\n require(_exists(tokenId), \"ERC721: approved query for nonexistent token\");\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev Sets or unsets the approval of a given operator\n * An operator is allowed to transfer all tokens of the sender on their behalf.\n * @param to operator address to set the approval\n * @param approved representing the status of the approval to be set\n */\n function setApprovalForAll(address to, bool approved) public {\n require(to != msg.sender, \"ERC721: approve to caller\");\n\n _operatorApprovals[msg.sender][to] = approved;\n emit ApprovalForAll(msg.sender, to, approved);\n }\n\n /**\n * @dev Tells whether an operator is approved by a given owner.\n * @param owner owner address which you want to query the approval of\n * @param operator operator address which you want to query the approval of\n * @return bool whether the given operator is approved by the given owner\n */\n function isApprovedForAll(address owner, address operator) public view returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev Transfers the ownership of a given token ID to another address.\n * Usage of this method is discouraged, use `safeTransferFrom` whenever possible.\n * Requires the msg.sender to be the owner, approved, or operator.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function transferFrom(address from, address to, uint256 tokenId) public {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(msg.sender, tokenId), \"ERC721: transfer caller is not owner nor approved\");\n\n _transferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes data to send along with a safe transfer check\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public {\n transferFrom(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, _data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns whether the specified token exists.\n * @param tokenId uint256 ID of the token to query the existence of\n * @return bool whether the token exists\n */\n function _exists(uint256 tokenId) internal view returns (bool) {\n address owner = _tokenOwner[tokenId];\n return owner != address(0);\n }\n\n /**\n * @dev Returns whether the given spender can transfer a given token ID.\n * @param spender address of the spender to query\n * @param tokenId uint256 ID of the token to be transferred\n * @return bool whether the msg.sender is approved for the given token ID,\n * is an operator of the owner, or is the owner of the token\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view returns (bool) {\n require(_exists(tokenId), \"ERC721: operator query for nonexistent token\");\n address owner = ownerOf(tokenId);\n return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to The address that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _tokenOwner[tokenId] = to;\n _ownedTokensCount[to].increment();\n\n emit Transfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n require(ownerOf(tokenId) == owner, \"ERC721: burn of token that is not own\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[owner].decrement();\n _tokenOwner[tokenId] = address(0);\n\n emit Transfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(uint256 tokenId) internal {\n _burn(ownerOf(tokenId), tokenId);\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n require(ownerOf(tokenId) == from, \"ERC721: transfer of token that is not own\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[from].decrement();\n _ownedTokensCount[to].increment();\n\n _tokenOwner[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n }\n\n /**\n * @dev Internal function to invoke `onERC721Received` on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * This function is deprecated.\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data)\n internal returns (bool)\n {\n if (!to.isContract()) {\n return true;\n }\n\n bytes4 retval = IERC721Receiver(to).onERC721Received(msg.sender, from, tokenId, _data);\n return (retval == _ERC721_RECEIVED);\n }\n\n /**\n * @dev Private function to clear current approval of a given token ID.\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _clearApproval(uint256 tokenId) private {\n if (_tokenApprovals[tokenId] != address(0)) {\n _tokenApprovals[tokenId] = address(0);\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Enumerable is IERC721 {\n function totalSupply() public view returns (uint256);\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256 tokenId);\n\n function tokenByIndex(uint256 index) public view returns (uint256);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title ERC-721 Non-Fungible Token with optional enumeration extension logic\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Enumerable is ERC165, ERC721, IERC721Enumerable {\n // Mapping from owner to list of owned token IDs\n mapping(address => uint256[]) private _ownedTokens;\n\n // Mapping from token ID to index of the owner tokens list\n mapping(uint256 => uint256) private _ownedTokensIndex;\n\n // Array with all token ids, used for enumeration\n uint256[] private _allTokens;\n\n // Mapping from token id to position in the allTokens array\n mapping(uint256 => uint256) private _allTokensIndex;\n\n /*\n * bytes4(keccak256('totalSupply()')) == 0x18160ddd\n * bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59\n * bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7\n *\n * => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63\n */\n bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;\n\n /**\n * @dev Constructor function.\n */\n constructor () public {\n // register the supported interface to conform to ERC721Enumerable via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);\n }\n\n /**\n * @dev Gets the token ID at a given index of the tokens list of the requested owner.\n * @param owner address owning the tokens list to be accessed\n * @param index uint256 representing the index to be accessed of the requested tokens list\n * @return uint256 token ID at the given index of the tokens list owned by the requested address\n */\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) {\n require(index < balanceOf(owner), \"ERC721Enumerable: owner index out of bounds\");\n return _ownedTokens[owner][index];\n }\n\n /**\n * @dev Gets the total amount of tokens stored by the contract.\n * @return uint256 representing the total amount of tokens\n */\n function totalSupply() public view returns (uint256) {\n return _allTokens.length;\n }\n\n /**\n * @dev Gets the token ID at a given index of all the tokens in this contract\n * Reverts if the index is greater or equal to the total number of tokens.\n * @param index uint256 representing the index to be accessed of the tokens list\n * @return uint256 token ID at the given index of the tokens list\n */\n function tokenByIndex(uint256 index) public view returns (uint256) {\n require(index < totalSupply(), \"ERC721Enumerable: global index out of bounds\");\n return _allTokens[index];\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n super._transferFrom(from, to, tokenId);\n\n _removeTokenFromOwnerEnumeration(from, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to address the beneficiary that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n super._mint(to, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n\n _addTokenToAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n _removeTokenFromOwnerEnumeration(owner, tokenId);\n // Since tokenId will be deleted, we can clear its slot in _ownedTokensIndex to trigger a gas refund\n _ownedTokensIndex[tokenId] = 0;\n\n _removeTokenFromAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Gets the list of token IDs of the requested owner.\n * @param owner address owning the tokens\n * @return uint256[] List of token IDs owned by the requested address\n */\n function _tokensOfOwner(address owner) internal view returns (uint256[] storage) {\n return _ownedTokens[owner];\n }\n\n /**\n * @dev Private function to add a token to this extension's ownership-tracking data structures.\n * @param to address representing the new owner of the given token ID\n * @param tokenId uint256 ID of the token to be added to the tokens list of the given address\n */\n function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {\n _ownedTokensIndex[tokenId] = _ownedTokens[to].length;\n _ownedTokens[to].push(tokenId);\n }\n\n /**\n * @dev Private function to add a token to this extension's token tracking data structures.\n * @param tokenId uint256 ID of the token to be added to the tokens list\n */\n function _addTokenToAllTokensEnumeration(uint256 tokenId) private {\n _allTokensIndex[tokenId] = _allTokens.length;\n _allTokens.push(tokenId);\n }\n\n /**\n * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\n * while the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\n * gas optimizations e.g. when performing a transfer operation (avoiding double writes).\n * This has O(1) time complexity, but alters the order of the _ownedTokens array.\n * @param from address representing the previous owner of the given token ID\n * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address\n */\n function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {\n // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _ownedTokens[from].length.sub(1);\n uint256 tokenIndex = _ownedTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary\n if (tokenIndex != lastTokenIndex) {\n uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];\n\n _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n }\n\n // This also deletes the contents at the last position of the array\n _ownedTokens[from].length--;\n\n // Note that _ownedTokensIndex[tokenId] hasn't been cleared: it still points to the old slot (now occupied by\n // lastTokenId, or just over the end of the array if the token was the last one).\n }\n\n /**\n * @dev Private function to remove a token from this extension's token tracking data structures.\n * This has O(1) time complexity, but alters the order of the _allTokens array.\n * @param tokenId uint256 ID of the token to be removed from the tokens list\n */\n function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {\n // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _allTokens.length.sub(1);\n uint256 tokenIndex = _allTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so\n // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding\n // an 'if' statement (like in _removeTokenFromOwnerEnumeration)\n uint256 lastTokenId = _allTokens[lastTokenIndex];\n\n _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n\n // This also deletes the contents at the last position of the array\n _allTokens.length--;\n _allTokensIndex[tokenId] = 0;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Metadata is IERC721 {\n function name() external view returns (string memory);\n function symbol() external view returns (string memory);\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n\n\ncontract ERC721Metadata is ERC165, ERC721, IERC721Metadata {\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Optional mapping for token URIs\n mapping(uint256 => string) private _tokenURIs;\n\n /*\n * bytes4(keccak256('name()')) == 0x06fdde03\n * bytes4(keccak256('symbol()')) == 0x95d89b41\n * bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd\n *\n * => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f\n */\n bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;\n\n /**\n * @dev Constructor function\n */\n constructor (string memory name, string memory symbol) public {\n _name = name;\n _symbol = symbol;\n\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_METADATA);\n }\n\n /**\n * @dev Gets the token name.\n * @return string representing the token name\n */\n function name() external view returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Gets the token symbol.\n * @return string representing the token symbol\n */\n function symbol() external view returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns an URI for a given token ID.\n * Throws if the token ID does not exist. May return an empty string.\n * @param tokenId uint256 ID of the token to query\n */\n function tokenURI(uint256 tokenId) external view returns (string memory) {\n require(_exists(tokenId), \"ERC721Metadata: URI query for nonexistent token\");\n return _tokenURIs[tokenId];\n }\n\n /**\n * @dev Internal function to set the token URI for a given token.\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to set its URI\n * @param uri string URI to assign\n */\n function _setTokenURI(uint256 tokenId, string memory uri) internal {\n require(_exists(tokenId), \"ERC721Metadata: URI set of nonexistent token\");\n _tokenURIs[tokenId] = uri;\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned by the msg.sender\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n // Clear metadata (if any)\n if (bytes(_tokenURIs[tokenId]).length != 0) {\n delete _tokenURIs[tokenId];\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Full.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title Full ERC721 Token\n * This implementation includes all the required and some optional functionality of the ERC721 standard\n * Moreover, it includes approve all functionality using operator terminology\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Full is ERC721, ERC721Enumerable, ERC721Metadata {\n constructor (string memory name, string memory symbol) public ERC721Metadata(name, symbol) {\n // solhint-disable-previous-line no-empty-blocks\n }\n}\n", - "sourcePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "ast": { - "absolutePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "exportedSymbols": { - "Address": [ - 289 - ], - "Counters": [ - 336 - ], - "ERC165": [ - 386 - ], - "ERC721": [ - 944 - ], - "ERC721Enumerable": [ - 1302 - ], - "ERC721Full": [ - 1468 - ], - "ERC721Metadata": [ - 1448 - ], - "IERC165": [ - 23 - ], - "IERC721": [ - 124 - ], - "IERC721Enumerable": [ - 969 - ], - "IERC721Metadata": [ - 1323 - ], - "IERC721Receiver": [ - 139 - ], - "SafeMath": [ - 271 - ] - }, - "id": 1469, - "nodeType": "SourceUnit", - "nodes": [ - { - "id": 15, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "61:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "interface", - "documentation": "@dev Interface of the ERC165 standard, as defined in the\n[EIP](https://eips.ethereum.org/EIPS/eip-165).\n * Implementers can declare support of contract interfaces, which can then be\nqueried by others (`ERC165Checker`).\n * For an implementation, see `ERC165`.", - "fullyImplemented": false, - "id": 23, - "linearizedBaseContracts": [ - 23 - ], - "name": "IERC165", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@dev Returns true if this contract implements the interface defined by\n`interfaceId`. 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This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. This\nfunction MAY throw to revert and reject the transfer.\nNote: the ERC721 contract address is always the message sender.\n@param operator The address which called `safeTransferFrom` function\n@param from The address which previously owned the token\n@param tokenId The NFT identifier which is being transferred\n@param data Additional data with no specified format\n@return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`", - "id": 138, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "onERC721Received", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 134, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 127, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3960:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 126, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "3960:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 129, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3978:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 128, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "3978:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 131, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3992:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 130, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "3992:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 133, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "4009:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 132, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "4009:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "3959:68:1" - }, - "returnParameters": { - "id": 137, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 136, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "4048:6:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 135, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "4048:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "4047:8:1" - }, - "scope": 139, - "src": "3934:122:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "3045:1013:1" - }, - { - "id": 140, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "4112:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "library", - "documentation": "@dev Wrappers over Solidity's arithmetic operations with added overflow\nchecks.\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\nin bugs, because programmers usually assume that an overflow raises an\nerror, which is the standard behavior in high level programming languages.\n`SafeMath` restores this intuition by reverting the transaction when an\noperation overflows.\n * Using this library instead of the unchecked operations eliminates an entire\nclass of bugs, so it's recommended to use it always.", - "fullyImplemented": true, - "id": 271, - "linearizedBaseContracts": [ - 271 - ], - "name": "SafeMath", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": { - "id": 164, - "nodeType": "Block", - "src": "5013:109:1", - "statements": [ - { - "assignments": [ - 150 - ], - "declarations": [ - { - "constant": false, - "id": 150, - "name": "c", - "nodeType": "VariableDeclaration", - "scope": 164, - "src": "5023:9:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 149, - 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"names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - 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Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - 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"typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "29224:15:1" - }, - "returnParameters": { - "id": 1146, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1145, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 1152, - "src": "29263:17:1", - "stateVariable": false, - "storageLocation": "storage", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - }, - "typeName": { - "baseType": { - "id": 1143, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "29263:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1144, - "length": null, - "nodeType": "ArrayTypeName", - "src": "29263:9:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - } - }, - "value": null, - "visibility": "internal" - 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"src": "30073:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1184, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30100:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1185, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30100:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "30073:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1187, - "nodeType": "ExpressionStatement", - "src": "30073:44:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1191, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1178, - "src": "30143:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1188, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30127:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1190, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "push", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30127:15:1", - "typeDescriptions": { - "typeIdentifier": "t_function_arraypush_nonpayable$_t_uint256_$returns$_t_uint256_$", - "typeString": "function (uint256) returns (uint256)" - } - }, - "id": 1192, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "30127:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1193, - "nodeType": "ExpressionStatement", - "src": "30127:24:1" - } - ] - }, - "documentation": "@dev Private function to add a token to this extension's token tracking data structures.\n@param tokenId uint256 ID of the token to be added to the tokens list", - "id": 1195, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1179, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1178, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1195, - "src": "30038:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1177, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30038:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30037:17:1" - }, - "returnParameters": { - "id": 1180, - "nodeType": "ParameterList", - "parameters": [], - "src": "30063:0:1" - }, - "scope": 1302, - "src": "29997:161:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1251, - "nodeType": "Block", - "src": "30854:1047:1", - "statements": [ - { - "assignments": [ - 1203 - ], - "declarations": [ - { - "constant": false, - "id": 1203, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1251, - "src": "31035:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1202, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31035:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1211, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1209, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "31090:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1204, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31060:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1206, - "indexExpression": { - "argumentTypes": null, - "id": 1205, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31073:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31060:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1207, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31060:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1208, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "31060:29:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1210, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "31060:32:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31035:57:1" - }, - { - "assignments": [ - 1213 - ], - "declarations": [ - { - "constant": false, - "id": 1213, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1251, - "src": "31102:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1212, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31102:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1217, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1214, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31123:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1216, - "indexExpression": { - "argumentTypes": null, - "id": 1215, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1199, - "src": "31141:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31123:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31102:47:1" - }, - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "id": 1220, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 1218, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31253:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "id": 1219, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31267:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31253:28:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 1244, - "nodeType": "IfStatement", - "src": "31249:323:1", - "trueBody": { - "id": 1243, - "nodeType": "Block", - "src": "31283:289:1", - "statements": [ - { - "assignments": [ - 1222 - ], - "declarations": [ - { - "constant": false, - "id": 1222, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1243, - "src": "31297:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1221, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31297:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1228, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1223, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31319:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1225, - "indexExpression": { - "argumentTypes": null, - "id": 1224, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31332:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1227, - "indexExpression": { - "argumentTypes": null, - "id": 1226, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31338:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:34:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - 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"isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - 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"typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 47, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "1257:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1207:64:1" - }, - "src": "1187:85:1" - }, - { - "body": null, - "documentation": "@dev Returns the number of NFTs in `owner`'s account.", - "id": 57, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "balanceOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 53, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 52, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 57, - "src": "1374:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 51, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1374:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1373:15:1" - }, - "returnParameters": { - "id": 56, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 55, - "name": "balance", - "nodeType": "VariableDeclaration", - "scope": 57, - "src": "1410:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 54, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1410:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1409:17:1" - }, - "scope": 124, - "src": "1355:72:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Returns the owner of the NFT specified by `tokenId`.", - "id": 64, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "ownerOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 60, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 59, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1531:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 58, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1531:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1530:17:1" - }, - "returnParameters": { - "id": 63, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 62, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1569:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 61, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1569:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1568:15:1" - }, - "scope": 124, - "src": "1514:70:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * \n * Requirements:\n- `from`, `to` cannot be zero.\n- `tokenId` must be owned by `from`.\n- If the caller is not `from`, it must be have been allowed to move this\nNFT by either `approve` or `setApproveForAll`.", - "id": 73, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 71, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 66, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "1992:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 65, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1992:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 68, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2006:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 67, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2006:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 70, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2018:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 69, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2018:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1991:43:1" - }, - "returnParameters": { - "id": 72, - "nodeType": "ParameterList", - "parameters": [], - "src": "2041:0:1" - }, - "scope": 124, - "src": "1966:76:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * Requirements:\n- If the caller is not `from`, it must be approved to move this NFT by\neither `approve` or `setApproveForAll`.", - "id": 82, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 80, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 75, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2339:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 74, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2339:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 77, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2353:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 76, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2353:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 79, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2365:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 78, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2365:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2338:43:1" - }, - "returnParameters": { - "id": 81, - "nodeType": "ParameterList", - "parameters": [], - "src": "2388:0:1" - }, - "scope": 124, - "src": "2317:72:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 89, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "approve", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 87, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 84, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2411:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 83, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2411:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 86, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2423:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 85, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2423:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2410:29:1" - }, - "returnParameters": { - "id": 88, - "nodeType": "ParameterList", - "parameters": [], - "src": "2446:0:1" - }, - "scope": 124, - "src": "2394:53:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 96, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "getApproved", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 92, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 91, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2473:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 90, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2473:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2472:17:1" - }, - "returnParameters": { - "id": 95, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 94, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2511:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 93, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2511:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2510:18:1" - }, - "scope": 124, - "src": "2452:77:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 103, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "setApprovalForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 101, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 98, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2562:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 97, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2562:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 100, - "name": "_approved", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2580:14:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 99, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2580:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2561:34:1" - }, - "returnParameters": { - "id": 102, - "nodeType": "ParameterList", - "parameters": [], - "src": "2602:0:1" - }, - "scope": 124, - "src": "2535:68:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 112, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "isApprovedForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 108, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 105, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2634:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 104, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2634:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 107, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2649:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 106, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2649:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2633:33:1" - }, - "returnParameters": { - "id": 111, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 110, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2688:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 109, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2688:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2687:6:1" - }, - "scope": 124, - "src": "2608:86:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 123, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 121, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 114, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2727:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 113, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2727:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 116, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2741:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 115, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2741:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 118, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2753:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 117, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2753:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 120, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2770:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 119, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "2770:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2726:62:1" - }, - "returnParameters": { - "id": 122, - "nodeType": "ParameterList", - "parameters": [], - "src": "2795:0:1" - }, - "scope": 124, - "src": "2701:95:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "972:1826:1" - }, - { - "id": 125, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "2867:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "contract", - "documentation": "@title ERC721 token receiver interface\n@dev Interface for any contract that wants to support safeTransfers\nfrom ERC721 asset contracts.", - "fullyImplemented": false, - "id": 139, - "linearizedBaseContracts": [ - 139 - ], - "name": "IERC721Receiver", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@notice Handle the receipt of an NFT\n@dev The ERC721 smart contract calls this function on the recipient\nafter a `safeTransfer`. This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. 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"names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - 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Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - }, - "returnParameters": { - "id": 370, - "nodeType": "ParameterList", - "parameters": [], - "src": "11598:0:1" - }, - "scope": 386, - "src": "11541:190:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "10321:1412:1" - }, - { - "id": 387, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "11793:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 388, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "11968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 389, - "nodeType": "InheritanceSpecifier", - "src": "11968:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 390, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "11976:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 391, - "nodeType": "InheritanceSpecifier", - "src": "11976:7:1" - } - ], - "contractDependencies": [ - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 944, - "linearizedBaseContracts": [ - 944, - 124, - 386, - 23 - ], - "name": "ERC721", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 394, - "libraryName": { - "contractScope": null, - "id": 392, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "11996:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "11990:27:1", - "typeName": { - "id": 393, - "name": "uint256", - 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"typeString": "library Counters" - } - }, - "nodeType": "UsingForDirective", - "src": "12053:36:1", - "typeName": { - "contractScope": null, - "id": 399, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12072:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - { - "constant": true, - "id": 403, - "name": "_ERC721_RECEIVED", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12267:53:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 401, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "12267:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783135306237613032", - "id": 402, - "isConstant": false, - 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"typeIdentifier": "t_mapping$_t_address_$_t_struct$_Counter_$296_storage_$", - "typeString": "mapping(address => struct Counters.Counter)" - }, - "valueType": { - "contractScope": null, - "id": 413, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12599:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 421, - "name": "_operatorApprovals", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12697:73:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", - "typeString": "mapping(address => mapping(address => bool))" - }, - "typeName": { - "id": 420, - "keyType": { - "id": 416, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12706:7:1", - 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"nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "27799:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1077, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27799:47:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1078, - "nodeType": "ExpressionStatement", - "src": "27799:47:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1080, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1061, - "src": "27885:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1081, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1063, - "src": "27889:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1079, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "27857:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1082, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27857:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1083, - "nodeType": "ExpressionStatement", - "src": "27857:40:1" - } - ] - }, - "documentation": "@dev Internal function to transfer ownership of a given token ID to another address.\nAs opposed to transferFrom, this imposes no restrictions on msg.sender.\n@param from current owner of the token\n@param to address to receive the ownership of the given token ID\n@param tokenId uint256 ID of the token to be transferred", - "id": 1085, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1064, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1059, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27688:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1058, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27688:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1061, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27702:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1060, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27702:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1063, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27714:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1062, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "27714:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "27687:43:1" - }, - "returnParameters": { - "id": 1065, - "nodeType": "ParameterList", - "parameters": [], - "src": "27740:0:1" - }, - "scope": 1302, - "src": "27665:239:1", - "stateMutability": "nonpayable", - "superFunction": 880, - "visibility": "internal" - }, - { - "body": { - "id": 1108, - "nodeType": "Block", - "src": "28214:143:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1095, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28236:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1096, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28240:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1092, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28224:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1094, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_mint", - "nodeType": "MemberAccess", - "referencedDeclaration": 768, - "src": "28224:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1097, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28224:24:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1098, - "nodeType": "ExpressionStatement", - "src": "28224:24:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1100, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28287:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1101, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28291:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1099, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "28259:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1102, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28259:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1103, - "nodeType": "ExpressionStatement", - "src": "28259:40:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1105, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28342:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1104, - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1195, - "src": "28310:31:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1106, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28310:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1107, - "nodeType": "ExpressionStatement", - "src": "28310:40:1" - } - ] - }, - "documentation": "@dev Internal function to mint a new token.\nReverts if the given token ID already exists.\n@param to address the beneficiary that will own the minted token\n@param tokenId uint256 ID of the token to be minted", - "id": 1109, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_mint", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1090, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1087, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28176:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1086, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28176:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1089, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28188:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1088, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28188:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28175:29:1" - }, - "returnParameters": { - "id": 1091, - "nodeType": "ParameterList", - "parameters": [], - "src": "28214:0:1" - }, - "scope": 1302, - "src": "28161:196:1", - "stateMutability": "nonpayable", - "superFunction": 768, - "visibility": "internal" - }, - { - "body": { - "id": 1138, - "nodeType": "Block", - "src": "28688:308:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1119, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28710:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1120, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28717:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1116, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28698:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1118, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_burn", - "nodeType": "MemberAccess", - "referencedDeclaration": 811, - "src": "28698:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1121, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28698:27:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1122, - "nodeType": "ExpressionStatement", - "src": "28698:27:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1124, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28769:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1125, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28776:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1123, - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "28736:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1126, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28736:48:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1127, - "nodeType": "ExpressionStatement", - "src": "28736:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1132, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1128, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "28903:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1130, - "indexExpression": { - "argumentTypes": null, - "id": 1129, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28921:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "28903:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1131, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "28932:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "28903:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1133, - "nodeType": "ExpressionStatement", - "src": "28903:30:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1135, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28981:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1134, - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1301, - "src": "28944:36:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1136, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28944:45:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1137, - "nodeType": "ExpressionStatement", - "src": "28944:45:1" - } - ] - }, - "documentation": "@dev Internal function to burn a specific token.\nReverts if the token does not exist.\nDeprecated, use _burn(uint256) instead.\n@param owner owner of the token to burn\n@param tokenId uint256 ID of the token being burned", - "id": 1139, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_burn", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1114, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1111, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28647:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1110, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28647:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1113, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28662:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1112, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28662:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28646:32:1" - }, - "returnParameters": { - "id": 1115, - "nodeType": "ParameterList", - "parameters": [], - "src": "28688:0:1" - }, - "scope": 1302, - "src": "28632:364:1", - "stateMutability": "nonpayable", - "superFunction": 811, - "visibility": "internal" - 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"typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "32485:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1259, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32463:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1260, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "32463:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1261, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1265, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32497:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1270, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1267, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "32518:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1269, - "indexExpression": { - "argumentTypes": null, - "id": 1268, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "32534:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32518:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32497:45:1" - }, - { - "assignments": [ - 1272 - ], - "declarations": [ - { - "constant": false, - "id": 1272, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32864:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1271, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32864:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1276, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1273, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32886:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1275, - "indexExpression": { - "argumentTypes": null, - "id": 1274, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1258, - "src": "32897:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32886:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32864:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1281, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1277, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32923:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1279, - "indexExpression": { - "argumentTypes": null, - "id": 1278, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "32934:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "32923:22:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1280, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "32948:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "32923:36:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1282, - "nodeType": "ExpressionStatement", - "src": "32923:36:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1287, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1283, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33027:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1285, - "indexExpression": { - "argumentTypes": null, - "id": 1284, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "33043:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33027:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1286, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "33058:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "33027:41:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1288, - "nodeType": "ExpressionStatement", - "src": "33027:41:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1292, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "33189:19:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1289, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "33189:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1291, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "33189:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1293, - "nodeType": "ExpressionStatement", - "src": "33189:19:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1298, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1294, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33218:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1296, - "indexExpression": { - "argumentTypes": null, - "id": 1295, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "33234:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33218:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1297, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "33245:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "33218:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1299, - "nodeType": "ExpressionStatement", - "src": "33218:28:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's token tracking data structures.\nThis has O(1) time complexity, but alters the order of the _allTokens array.\n@param tokenId uint256 ID of the token to be removed from the tokens list", - "id": 1301, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1255, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1254, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1301, - "src": "32235:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1253, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32235:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "32234:17:1" - }, - "returnParameters": { - "id": 1256, - "nodeType": "ParameterList", - "parameters": [], - "src": "32260:0:1" - }, - "scope": 1302, - "src": "32189:1064:1", - "stateMutability": "nonpayable", - 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May return an empty string.\n@param tokenId uint256 ID of the token to query", - "id": 1396, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "tokenURI", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1380, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1379, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1396, - "src": "35304:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1378, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "35304:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "35303:17:1" - }, - "returnParameters": { - "id": 1383, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1382, - "name": "", - 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"devdoc": { - "author": "Matt Condon (@shrugs)", - "details": "Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number of elements in a mapping, issuing ERC721 ids, or counting request ids. * Include with `using Counters for Counters.Counter;` Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never directly accessed.", - "methods": {}, - "title": "Counters" - }, - "userdoc": { - "methods": {} - } -} \ No newline at end of file diff --git a/src/abis/ERC165.json b/src/abis/ERC165.json deleted file mode 100644 index fdc7a50..0000000 --- a/src/abis/ERC165.json +++ /dev/null @@ -1,37478 +0,0 @@ -{ - "contractName": "ERC165", - "abi": [ - { - "inputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "constructor" - }, - { - "constant": true, - "inputs": [ - { - "name": "interfaceId", - "type": "bytes4" - } - ], - "name": "supportsInterface", - "outputs": [ - { - "name": "", - "type": "bool" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - } - ], - "bytecode": "0x", - "deployedBytecode": "0x", - "sourceMap": "", - "deployedSourceMap": "", - "source": "\n// File: @openzeppelin/contracts/introspection/IERC165.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * [EIP](https://eips.ethereum.org/EIPS/eip-165).\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others (`ERC165Checker`).\n *\n * For an implementation, see `ERC165`.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ncontract IERC721 is IERC165 {\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of NFTs in `owner`'s account.\n */\n function balanceOf(address owner) public view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the NFT specified by `tokenId`.\n */\n function ownerOf(uint256 tokenId) public view returns (address owner);\n\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * \n *\n * Requirements:\n * - `from`, `to` cannot be zero.\n * - `tokenId` must be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this\n * NFT by either `approve` or `setApproveForAll`.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public;\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * Requirements:\n * - If the caller is not `from`, it must be approved to move this NFT by\n * either `approve` or `setApproveForAll`.\n */\n function transferFrom(address from, address to, uint256 tokenId) public;\n function approve(address to, uint256 tokenId) public;\n function getApproved(uint256 tokenId) public view returns (address operator);\n\n function setApprovalForAll(address operator, bool _approved) public;\n function isApprovedForAll(address owner, address operator) public view returns (bool);\n\n\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public;\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ncontract IERC721Receiver {\n /**\n * @notice Handle the receipt of an NFT\n * @dev The ERC721 smart contract calls this function on the recipient\n * after a `safeTransfer`. This function MUST return the function selector,\n * otherwise the caller will revert the transaction. The selector to be\n * returned can be obtained as `this.onERC721Received.selector`. This\n * function MAY throw to revert and reject the transfer.\n * Note: the ERC721 contract address is always the message sender.\n * @param operator The address which called `safeTransferFrom` function\n * @param from The address which previously owned the token\n * @param tokenId The NFT identifier which is being transferred\n * @param data Additional data with no specified format\n * @return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n */\n function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data)\n public returns (bytes4);\n}\n\n// File: @openzeppelin/contracts/math/SafeMath.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\n * checks.\n *\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\n * in bugs, because programmers usually assume that an overflow raises an\n * error, which is the standard behavior in high level programming languages.\n * `SafeMath` restores this intuition by reverting the transaction when an\n * operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeMath {\n /**\n * @dev Returns the addition of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `+` operator.\n *\n * Requirements:\n * - Addition cannot overflow.\n */\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting on\n * overflow (when the result is negative).\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n * - Subtraction cannot overflow.\n */\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b <= a, \"SafeMath: subtraction overflow\");\n uint256 c = a - b;\n\n return c;\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `*` operator.\n *\n * Requirements:\n * - Multiplication cannot overflow.\n */\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers. Reverts on\n * division by zero. The result is rounded towards zero.\n *\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n * uses an invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n // Solidity only automatically asserts when dividing by 0\n require(b > 0, \"SafeMath: division by zero\");\n uint256 c = a / b;\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n return c;\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * Reverts when dividing by zero.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b != 0, \"SafeMath: modulo by zero\");\n return a % b;\n }\n}\n\n// File: @openzeppelin/contracts/utils/Address.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Collection of functions related to the address type,\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * This test is non-exhaustive, and there may be false-negatives: during the\n * execution of a contract's constructor, its address will be reported as\n * not containing a contract.\n *\n * > It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies in extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n}\n\n// File: @openzeppelin/contracts/drafts/Counters.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title Counters\n * @author Matt Condon (@shrugs)\n * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number\n * of elements in a mapping, issuing ERC721 ids, or counting request ids.\n *\n * Include with `using Counters for Counters.Counter;`\n * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath\n * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never\n * directly accessed.\n */\nlibrary Counters {\n using SafeMath for uint256;\n\n struct Counter {\n // This variable should never be directly accessed by users of the library: interactions must be restricted to\n // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add\n // this feature: see https://github.com/ethereum/solidity/issues/4637\n uint256 _value; // default: 0\n }\n\n function current(Counter storage counter) internal view returns (uint256) {\n return counter._value;\n }\n\n function increment(Counter storage counter) internal {\n counter._value += 1;\n }\n\n function decrement(Counter storage counter) internal {\n counter._value = counter._value.sub(1);\n }\n}\n\n// File: @openzeppelin/contracts/introspection/ERC165.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Implementation of the `IERC165` interface.\n *\n * Contracts may inherit from this and call `_registerInterface` to declare\n * their support of an interface.\n */\ncontract ERC165 is IERC165 {\n /*\n * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7\n */\n bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;\n\n /**\n * @dev Mapping of interface ids to whether or not it's supported.\n */\n mapping(bytes4 => bool) private _supportedInterfaces;\n\n constructor () internal {\n // Derived contracts need only register support for their own interfaces,\n // we register support for ERC165 itself here\n _registerInterface(_INTERFACE_ID_ERC165);\n }\n\n /**\n * @dev See `IERC165.supportsInterface`.\n *\n * Time complexity O(1), guaranteed to always use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool) {\n return _supportedInterfaces[interfaceId];\n }\n\n /**\n * @dev Registers the contract as an implementer of the interface defined by\n * `interfaceId`. Support of the actual ERC165 interface is automatic and\n * registering its interface id is not required.\n *\n * See `IERC165.supportsInterface`.\n *\n * Requirements:\n *\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).\n */\n function _registerInterface(bytes4 interfaceId) internal {\n require(interfaceId != 0xffffffff, \"ERC165: invalid interface id\");\n _supportedInterfaces[interfaceId] = true;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n\n\n\n/**\n * @title ERC721 Non-Fungible Token Standard basic implementation\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721 is ERC165, IERC721 {\n using SafeMath for uint256;\n using Address for address;\n using Counters for Counters.Counter;\n\n // Equals to `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`\n bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;\n\n // Mapping from token ID to owner\n mapping (uint256 => address) private _tokenOwner;\n\n // Mapping from token ID to approved address\n mapping (uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to number of owned token\n mapping (address => Counters.Counter) private _ownedTokensCount;\n\n // Mapping from owner to operator approvals\n mapping (address => mapping (address => bool)) private _operatorApprovals;\n\n /*\n * bytes4(keccak256('balanceOf(address)')) == 0x70a08231\n * bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e\n * bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3\n * bytes4(keccak256('getApproved(uint256)')) == 0x081812fc\n * bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465\n * bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c\n * bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd\n * bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e\n * bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde\n *\n * => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^\n * 0xa22cb465 ^ 0xe985e9c ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd\n */\n bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;\n\n constructor () public {\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721);\n }\n\n /**\n * @dev Gets the balance of the specified address.\n * @param owner address to query the balance of\n * @return uint256 representing the amount owned by the passed address\n */\n function balanceOf(address owner) public view returns (uint256) {\n require(owner != address(0), \"ERC721: balance query for the zero address\");\n\n return _ownedTokensCount[owner].current();\n }\n\n /**\n * @dev Gets the owner of the specified token ID.\n * @param tokenId uint256 ID of the token to query the owner of\n * @return address currently marked as the owner of the given token ID\n */\n function ownerOf(uint256 tokenId) public view returns (address) {\n address owner = _tokenOwner[tokenId];\n require(owner != address(0), \"ERC721: owner query for nonexistent token\");\n\n return owner;\n }\n\n /**\n * @dev Approves another address to transfer the given token ID\n * The zero address indicates there is no approved address.\n * There can only be one approved address per token at a given time.\n * Can only be called by the token owner or an approved operator.\n * @param to address to be approved for the given token ID\n * @param tokenId uint256 ID of the token to be approved\n */\n function approve(address to, uint256 tokenId) public {\n address owner = ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(msg.sender == owner || isApprovedForAll(owner, msg.sender),\n \"ERC721: approve caller is not owner nor approved for all\"\n );\n\n _tokenApprovals[tokenId] = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Gets the approved address for a token ID, or zero if no address set\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to query the approval of\n * @return address currently approved for the given token ID\n */\n function getApproved(uint256 tokenId) public view returns (address) {\n require(_exists(tokenId), \"ERC721: approved query for nonexistent token\");\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev Sets or unsets the approval of a given operator\n * An operator is allowed to transfer all tokens of the sender on their behalf.\n * @param to operator address to set the approval\n * @param approved representing the status of the approval to be set\n */\n function setApprovalForAll(address to, bool approved) public {\n require(to != msg.sender, \"ERC721: approve to caller\");\n\n _operatorApprovals[msg.sender][to] = approved;\n emit ApprovalForAll(msg.sender, to, approved);\n }\n\n /**\n * @dev Tells whether an operator is approved by a given owner.\n * @param owner owner address which you want to query the approval of\n * @param operator operator address which you want to query the approval of\n * @return bool whether the given operator is approved by the given owner\n */\n function isApprovedForAll(address owner, address operator) public view returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev Transfers the ownership of a given token ID to another address.\n * Usage of this method is discouraged, use `safeTransferFrom` whenever possible.\n * Requires the msg.sender to be the owner, approved, or operator.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function transferFrom(address from, address to, uint256 tokenId) public {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(msg.sender, tokenId), \"ERC721: transfer caller is not owner nor approved\");\n\n _transferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes data to send along with a safe transfer check\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public {\n transferFrom(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, _data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns whether the specified token exists.\n * @param tokenId uint256 ID of the token to query the existence of\n * @return bool whether the token exists\n */\n function _exists(uint256 tokenId) internal view returns (bool) {\n address owner = _tokenOwner[tokenId];\n return owner != address(0);\n }\n\n /**\n * @dev Returns whether the given spender can transfer a given token ID.\n * @param spender address of the spender to query\n * @param tokenId uint256 ID of the token to be transferred\n * @return bool whether the msg.sender is approved for the given token ID,\n * is an operator of the owner, or is the owner of the token\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view returns (bool) {\n require(_exists(tokenId), \"ERC721: operator query for nonexistent token\");\n address owner = ownerOf(tokenId);\n return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to The address that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _tokenOwner[tokenId] = to;\n _ownedTokensCount[to].increment();\n\n emit Transfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n require(ownerOf(tokenId) == owner, \"ERC721: burn of token that is not own\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[owner].decrement();\n _tokenOwner[tokenId] = address(0);\n\n emit Transfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(uint256 tokenId) internal {\n _burn(ownerOf(tokenId), tokenId);\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n require(ownerOf(tokenId) == from, \"ERC721: transfer of token that is not own\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[from].decrement();\n _ownedTokensCount[to].increment();\n\n _tokenOwner[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n }\n\n /**\n * @dev Internal function to invoke `onERC721Received` on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * This function is deprecated.\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data)\n internal returns (bool)\n {\n if (!to.isContract()) {\n return true;\n }\n\n bytes4 retval = IERC721Receiver(to).onERC721Received(msg.sender, from, tokenId, _data);\n return (retval == _ERC721_RECEIVED);\n }\n\n /**\n * @dev Private function to clear current approval of a given token ID.\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _clearApproval(uint256 tokenId) private {\n if (_tokenApprovals[tokenId] != address(0)) {\n _tokenApprovals[tokenId] = address(0);\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Enumerable is IERC721 {\n function totalSupply() public view returns (uint256);\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256 tokenId);\n\n function tokenByIndex(uint256 index) public view returns (uint256);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title ERC-721 Non-Fungible Token with optional enumeration extension logic\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Enumerable is ERC165, ERC721, IERC721Enumerable {\n // Mapping from owner to list of owned token IDs\n mapping(address => uint256[]) private _ownedTokens;\n\n // Mapping from token ID to index of the owner tokens list\n mapping(uint256 => uint256) private _ownedTokensIndex;\n\n // Array with all token ids, used for enumeration\n uint256[] private _allTokens;\n\n // Mapping from token id to position in the allTokens array\n mapping(uint256 => uint256) private _allTokensIndex;\n\n /*\n * bytes4(keccak256('totalSupply()')) == 0x18160ddd\n * bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59\n * bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7\n *\n * => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63\n */\n bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;\n\n /**\n * @dev Constructor function.\n */\n constructor () public {\n // register the supported interface to conform to ERC721Enumerable via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);\n }\n\n /**\n * @dev Gets the token ID at a given index of the tokens list of the requested owner.\n * @param owner address owning the tokens list to be accessed\n * @param index uint256 representing the index to be accessed of the requested tokens list\n * @return uint256 token ID at the given index of the tokens list owned by the requested address\n */\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) {\n require(index < balanceOf(owner), \"ERC721Enumerable: owner index out of bounds\");\n return _ownedTokens[owner][index];\n }\n\n /**\n * @dev Gets the total amount of tokens stored by the contract.\n * @return uint256 representing the total amount of tokens\n */\n function totalSupply() public view returns (uint256) {\n return _allTokens.length;\n }\n\n /**\n * @dev Gets the token ID at a given index of all the tokens in this contract\n * Reverts if the index is greater or equal to the total number of tokens.\n * @param index uint256 representing the index to be accessed of the tokens list\n * @return uint256 token ID at the given index of the tokens list\n */\n function tokenByIndex(uint256 index) public view returns (uint256) {\n require(index < totalSupply(), \"ERC721Enumerable: global index out of bounds\");\n return _allTokens[index];\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n super._transferFrom(from, to, tokenId);\n\n _removeTokenFromOwnerEnumeration(from, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to address the beneficiary that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n super._mint(to, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n\n _addTokenToAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n _removeTokenFromOwnerEnumeration(owner, tokenId);\n // Since tokenId will be deleted, we can clear its slot in _ownedTokensIndex to trigger a gas refund\n _ownedTokensIndex[tokenId] = 0;\n\n _removeTokenFromAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Gets the list of token IDs of the requested owner.\n * @param owner address owning the tokens\n * @return uint256[] List of token IDs owned by the requested address\n */\n function _tokensOfOwner(address owner) internal view returns (uint256[] storage) {\n return _ownedTokens[owner];\n }\n\n /**\n * @dev Private function to add a token to this extension's ownership-tracking data structures.\n * @param to address representing the new owner of the given token ID\n * @param tokenId uint256 ID of the token to be added to the tokens list of the given address\n */\n function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {\n _ownedTokensIndex[tokenId] = _ownedTokens[to].length;\n _ownedTokens[to].push(tokenId);\n }\n\n /**\n * @dev Private function to add a token to this extension's token tracking data structures.\n * @param tokenId uint256 ID of the token to be added to the tokens list\n */\n function _addTokenToAllTokensEnumeration(uint256 tokenId) private {\n _allTokensIndex[tokenId] = _allTokens.length;\n _allTokens.push(tokenId);\n }\n\n /**\n * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\n * while the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\n * gas optimizations e.g. when performing a transfer operation (avoiding double writes).\n * This has O(1) time complexity, but alters the order of the _ownedTokens array.\n * @param from address representing the previous owner of the given token ID\n * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address\n */\n function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {\n // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _ownedTokens[from].length.sub(1);\n uint256 tokenIndex = _ownedTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary\n if (tokenIndex != lastTokenIndex) {\n uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];\n\n _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n }\n\n // This also deletes the contents at the last position of the array\n _ownedTokens[from].length--;\n\n // Note that _ownedTokensIndex[tokenId] hasn't been cleared: it still points to the old slot (now occupied by\n // lastTokenId, or just over the end of the array if the token was the last one).\n }\n\n /**\n * @dev Private function to remove a token from this extension's token tracking data structures.\n * This has O(1) time complexity, but alters the order of the _allTokens array.\n * @param tokenId uint256 ID of the token to be removed from the tokens list\n */\n function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {\n // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _allTokens.length.sub(1);\n uint256 tokenIndex = _allTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so\n // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding\n // an 'if' statement (like in _removeTokenFromOwnerEnumeration)\n uint256 lastTokenId = _allTokens[lastTokenIndex];\n\n _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n\n // This also deletes the contents at the last position of the array\n _allTokens.length--;\n _allTokensIndex[tokenId] = 0;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Metadata is IERC721 {\n function name() external view returns (string memory);\n function symbol() external view returns (string memory);\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n\n\ncontract ERC721Metadata is ERC165, ERC721, IERC721Metadata {\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Optional mapping for token URIs\n mapping(uint256 => string) private _tokenURIs;\n\n /*\n * bytes4(keccak256('name()')) == 0x06fdde03\n * bytes4(keccak256('symbol()')) == 0x95d89b41\n * bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd\n *\n * => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f\n */\n bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;\n\n /**\n * @dev Constructor function\n */\n constructor (string memory name, string memory symbol) public {\n _name = name;\n _symbol = symbol;\n\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_METADATA);\n }\n\n /**\n * @dev Gets the token name.\n * @return string representing the token name\n */\n function name() external view returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Gets the token symbol.\n * @return string representing the token symbol\n */\n function symbol() external view returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns an URI for a given token ID.\n * Throws if the token ID does not exist. May return an empty string.\n * @param tokenId uint256 ID of the token to query\n */\n function tokenURI(uint256 tokenId) external view returns (string memory) {\n require(_exists(tokenId), \"ERC721Metadata: URI query for nonexistent token\");\n return _tokenURIs[tokenId];\n }\n\n /**\n * @dev Internal function to set the token URI for a given token.\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to set its URI\n * @param uri string URI to assign\n */\n function _setTokenURI(uint256 tokenId, string memory uri) internal {\n require(_exists(tokenId), \"ERC721Metadata: URI set of nonexistent token\");\n _tokenURIs[tokenId] = uri;\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned by the msg.sender\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n // Clear metadata (if any)\n if (bytes(_tokenURIs[tokenId]).length != 0) {\n delete _tokenURIs[tokenId];\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Full.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title Full ERC721 Token\n * This implementation includes all the required and some optional functionality of the ERC721 standard\n * Moreover, it includes approve all functionality using operator terminology\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Full is ERC721, ERC721Enumerable, ERC721Metadata {\n constructor (string memory name, string memory symbol) public ERC721Metadata(name, symbol) {\n // solhint-disable-previous-line no-empty-blocks\n }\n}\n", - "sourcePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "ast": { - "absolutePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "exportedSymbols": { - "Address": [ - 289 - ], - "Counters": [ - 336 - ], - "ERC165": [ - 386 - ], - "ERC721": [ - 944 - ], - "ERC721Enumerable": [ - 1302 - ], - "ERC721Full": [ - 1468 - ], - "ERC721Metadata": [ - 1448 - ], - "IERC165": [ - 23 - ], - "IERC721": [ - 124 - ], - "IERC721Enumerable": [ - 969 - ], - "IERC721Metadata": [ - 1323 - ], - "IERC721Receiver": [ - 139 - ], - "SafeMath": [ - 271 - ] - }, - "id": 1469, - "nodeType": "SourceUnit", - "nodes": [ - { - "id": 15, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "61:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "interface", - "documentation": "@dev Interface of the ERC165 standard, as defined in the\n[EIP](https://eips.ethereum.org/EIPS/eip-165).\n * Implementers can declare support of contract interfaces, which can then be\nqueried by others (`ERC165Checker`).\n * For an implementation, see `ERC165`.", - "fullyImplemented": false, - "id": 23, - "linearizedBaseContracts": [ - 23 - ], - "name": "IERC165", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@dev Returns true if this contract implements the interface defined by\n`interfaceId`. 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"typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 47, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "1257:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1207:64:1" - }, - "src": "1187:85:1" - }, - { - "body": null, - "documentation": "@dev Returns the number of NFTs in `owner`'s account.", - "id": 57, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "balanceOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 53, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 52, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 57, - "src": "1374:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 51, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1374:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1373:15:1" - }, - "returnParameters": { - "id": 56, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 55, - "name": "balance", - "nodeType": "VariableDeclaration", - "scope": 57, - "src": "1410:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 54, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1410:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1409:17:1" - }, - "scope": 124, - "src": "1355:72:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Returns the owner of the NFT specified by `tokenId`.", - "id": 64, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "ownerOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 60, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 59, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1531:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 58, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1531:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1530:17:1" - }, - "returnParameters": { - "id": 63, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 62, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1569:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 61, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1569:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1568:15:1" - }, - "scope": 124, - "src": "1514:70:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * \n * Requirements:\n- `from`, `to` cannot be zero.\n- `tokenId` must be owned by `from`.\n- If the caller is not `from`, it must be have been allowed to move this\nNFT by either `approve` or `setApproveForAll`.", - "id": 73, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 71, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 66, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "1992:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 65, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1992:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 68, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2006:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 67, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2006:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 70, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2018:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 69, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2018:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1991:43:1" - }, - "returnParameters": { - "id": 72, - "nodeType": "ParameterList", - "parameters": [], - "src": "2041:0:1" - }, - "scope": 124, - "src": "1966:76:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * Requirements:\n- If the caller is not `from`, it must be approved to move this NFT by\neither `approve` or `setApproveForAll`.", - "id": 82, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 80, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 75, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2339:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 74, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2339:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 77, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2353:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 76, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2353:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 79, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2365:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 78, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2365:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2338:43:1" - }, - "returnParameters": { - "id": 81, - "nodeType": "ParameterList", - "parameters": [], - "src": "2388:0:1" - }, - "scope": 124, - "src": "2317:72:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 89, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "approve", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 87, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 84, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2411:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 83, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2411:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 86, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2423:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 85, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2423:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2410:29:1" - }, - "returnParameters": { - "id": 88, - "nodeType": "ParameterList", - "parameters": [], - "src": "2446:0:1" - }, - "scope": 124, - "src": "2394:53:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 96, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "getApproved", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 92, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 91, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2473:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 90, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2473:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2472:17:1" - }, - "returnParameters": { - "id": 95, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 94, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2511:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 93, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2511:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2510:18:1" - }, - "scope": 124, - "src": "2452:77:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 103, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "setApprovalForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 101, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 98, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2562:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 97, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2562:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 100, - "name": "_approved", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2580:14:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 99, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2580:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2561:34:1" - }, - "returnParameters": { - "id": 102, - "nodeType": "ParameterList", - "parameters": [], - "src": "2602:0:1" - }, - "scope": 124, - "src": "2535:68:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 112, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "isApprovedForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 108, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 105, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2634:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 104, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2634:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 107, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2649:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 106, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2649:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2633:33:1" - }, - "returnParameters": { - "id": 111, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 110, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2688:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 109, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2688:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2687:6:1" - }, - "scope": 124, - "src": "2608:86:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 123, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 121, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 114, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2727:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 113, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2727:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 116, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2741:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 115, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2741:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 118, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2753:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 117, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2753:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 120, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2770:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 119, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "2770:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2726:62:1" - }, - "returnParameters": { - "id": 122, - "nodeType": "ParameterList", - "parameters": [], - "src": "2795:0:1" - }, - "scope": 124, - "src": "2701:95:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "972:1826:1" - }, - { - "id": 125, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "2867:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "contract", - "documentation": "@title ERC721 token receiver interface\n@dev Interface for any contract that wants to support safeTransfers\nfrom ERC721 asset contracts.", - "fullyImplemented": false, - "id": 139, - "linearizedBaseContracts": [ - 139 - ], - "name": "IERC721Receiver", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@notice Handle the receipt of an NFT\n@dev The ERC721 smart contract calls this function on the recipient\nafter a `safeTransfer`. This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. 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"names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - 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Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - }, - "returnParameters": { - "id": 370, - "nodeType": "ParameterList", - "parameters": [], - "src": "11598:0:1" - }, - "scope": 386, - "src": "11541:190:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "10321:1412:1" - }, - { - "id": 387, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "11793:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 388, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "11968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 389, - "nodeType": "InheritanceSpecifier", - "src": "11968:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 390, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "11976:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 391, - "nodeType": "InheritanceSpecifier", - "src": "11976:7:1" - } - ], - "contractDependencies": [ - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 944, - "linearizedBaseContracts": [ - 944, - 124, - 386, - 23 - ], - "name": "ERC721", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 394, - "libraryName": { - "contractScope": null, - "id": 392, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "11996:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "11990:27:1", - "typeName": { - "id": 393, - "name": "uint256", - 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"typeString": "library Counters" - } - }, - "nodeType": "UsingForDirective", - "src": "12053:36:1", - "typeName": { - "contractScope": null, - "id": 399, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12072:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - { - "constant": true, - "id": 403, - "name": "_ERC721_RECEIVED", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12267:53:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 401, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "12267:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783135306237613032", - "id": 402, - "isConstant": false, - 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"typeIdentifier": "t_mapping$_t_address_$_t_struct$_Counter_$296_storage_$", - "typeString": "mapping(address => struct Counters.Counter)" - }, - "valueType": { - "contractScope": null, - "id": 413, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12599:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 421, - "name": "_operatorApprovals", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12697:73:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", - "typeString": "mapping(address => mapping(address => bool))" - }, - "typeName": { - "id": 420, - "keyType": { - "id": 416, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12706:7:1", - 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"nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "27799:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1077, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27799:47:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1078, - "nodeType": "ExpressionStatement", - "src": "27799:47:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1080, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1061, - "src": "27885:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1081, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1063, - "src": "27889:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1079, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "27857:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1082, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27857:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1083, - "nodeType": "ExpressionStatement", - "src": "27857:40:1" - } - ] - }, - "documentation": "@dev Internal function to transfer ownership of a given token ID to another address.\nAs opposed to transferFrom, this imposes no restrictions on msg.sender.\n@param from current owner of the token\n@param to address to receive the ownership of the given token ID\n@param tokenId uint256 ID of the token to be transferred", - "id": 1085, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1064, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1059, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27688:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1058, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27688:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1061, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27702:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1060, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27702:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1063, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27714:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1062, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "27714:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "27687:43:1" - }, - "returnParameters": { - "id": 1065, - "nodeType": "ParameterList", - "parameters": [], - "src": "27740:0:1" - }, - "scope": 1302, - "src": "27665:239:1", - "stateMutability": "nonpayable", - "superFunction": 880, - "visibility": "internal" - }, - { - "body": { - "id": 1108, - "nodeType": "Block", - "src": "28214:143:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1095, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28236:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1096, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28240:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1092, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28224:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1094, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_mint", - "nodeType": "MemberAccess", - "referencedDeclaration": 768, - "src": "28224:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1097, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28224:24:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1098, - "nodeType": "ExpressionStatement", - "src": "28224:24:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1100, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28287:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1101, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28291:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1099, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "28259:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1102, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28259:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1103, - "nodeType": "ExpressionStatement", - "src": "28259:40:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1105, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28342:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1104, - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1195, - "src": "28310:31:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1106, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28310:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1107, - "nodeType": "ExpressionStatement", - "src": "28310:40:1" - } - ] - }, - "documentation": "@dev Internal function to mint a new token.\nReverts if the given token ID already exists.\n@param to address the beneficiary that will own the minted token\n@param tokenId uint256 ID of the token to be minted", - "id": 1109, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_mint", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1090, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1087, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28176:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1086, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28176:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1089, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28188:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1088, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28188:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28175:29:1" - }, - "returnParameters": { - "id": 1091, - "nodeType": "ParameterList", - "parameters": [], - "src": "28214:0:1" - }, - "scope": 1302, - "src": "28161:196:1", - "stateMutability": "nonpayable", - "superFunction": 768, - "visibility": "internal" - }, - { - "body": { - "id": 1138, - "nodeType": "Block", - "src": "28688:308:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1119, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28710:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1120, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28717:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1116, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28698:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1118, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_burn", - "nodeType": "MemberAccess", - "referencedDeclaration": 811, - "src": "28698:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1121, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28698:27:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1122, - "nodeType": "ExpressionStatement", - "src": "28698:27:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1124, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28769:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1125, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28776:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1123, - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "28736:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1126, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28736:48:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1127, - "nodeType": "ExpressionStatement", - "src": "28736:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1132, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1128, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "28903:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1130, - "indexExpression": { - "argumentTypes": null, - "id": 1129, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28921:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "28903:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1131, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "28932:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "28903:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1133, - "nodeType": "ExpressionStatement", - "src": "28903:30:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1135, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28981:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1134, - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1301, - "src": "28944:36:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1136, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28944:45:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1137, - "nodeType": "ExpressionStatement", - "src": "28944:45:1" - } - ] - }, - "documentation": "@dev Internal function to burn a specific token.\nReverts if the token does not exist.\nDeprecated, use _burn(uint256) instead.\n@param owner owner of the token to burn\n@param tokenId uint256 ID of the token being burned", - "id": 1139, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_burn", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1114, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1111, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28647:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1110, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28647:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1113, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28662:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1112, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28662:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28646:32:1" - }, - "returnParameters": { - "id": 1115, - "nodeType": "ParameterList", - "parameters": [], - "src": "28688:0:1" - }, - "scope": 1302, - "src": "28632:364:1", - "stateMutability": "nonpayable", - "superFunction": 811, - "visibility": "internal" - 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"typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "32485:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1259, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32463:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1260, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "32463:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1261, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1265, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32497:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1270, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1267, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "32518:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1269, - "indexExpression": { - "argumentTypes": null, - "id": 1268, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "32534:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32518:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32497:45:1" - }, - { - "assignments": [ - 1272 - ], - "declarations": [ - { - "constant": false, - "id": 1272, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32864:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1271, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32864:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1276, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1273, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32886:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1275, - "indexExpression": { - "argumentTypes": null, - "id": 1274, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1258, - "src": "32897:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32886:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32864:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1281, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1277, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32923:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1279, - "indexExpression": { - "argumentTypes": null, - "id": 1278, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "32934:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "32923:22:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1280, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "32948:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "32923:36:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1282, - "nodeType": "ExpressionStatement", - "src": "32923:36:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1287, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1283, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33027:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1285, - "indexExpression": { - "argumentTypes": null, - "id": 1284, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "33043:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33027:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1286, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "33058:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "33027:41:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1288, - "nodeType": "ExpressionStatement", - "src": "33027:41:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1292, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "33189:19:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1289, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "33189:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1291, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "33189:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1293, - "nodeType": "ExpressionStatement", - "src": "33189:19:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1298, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1294, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33218:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1296, - "indexExpression": { - "argumentTypes": null, - "id": 1295, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "33234:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33218:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1297, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "33245:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "33218:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1299, - "nodeType": "ExpressionStatement", - "src": "33218:28:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's token tracking data structures.\nThis has O(1) time complexity, but alters the order of the _allTokens array.\n@param tokenId uint256 ID of the token to be removed from the tokens list", - "id": 1301, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1255, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1254, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1301, - "src": "32235:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1253, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32235:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "32234:17:1" - }, - "returnParameters": { - "id": 1256, - "nodeType": "ParameterList", - "parameters": [], - "src": "32260:0:1" - }, - "scope": 1302, - "src": "32189:1064:1", - "stateMutability": "nonpayable", - 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May return an empty string.\n@param tokenId uint256 ID of the token to query", - "id": 1396, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "tokenURI", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1380, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1379, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1396, - "src": "35304:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1378, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "35304:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "35303:17:1" - }, - "returnParameters": { - "id": 1383, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1382, - "name": "", - 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} - }, - "id": 329, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "10032:18:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 331, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "10032:21:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "10015:38:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 333, - "nodeType": "ExpressionStatement", - "src": "10015:38:1" - } - ] - }, - "documentation": null, - "id": 335, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "decrement", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 322, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 321, - "name": "counter", - "nodeType": "VariableDeclaration", - "scope": 335, - "src": "9971:23:1", - "stateVariable": false, - "storageLocation": "storage", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - }, - "typeName": { - "contractScope": null, - "id": 320, - "name": "Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "9971:7:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "9970:25:1" - }, - "returnParameters": { - "id": 323, - "nodeType": "ParameterList", - "parameters": [], - "src": "10005:0:1" - }, - "scope": 336, - "src": "9952:108:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "9303:759:1" - }, - { - "id": 337, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "10123:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 338, - "name": "IERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 23, - "src": "10340:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC165_$23", - "typeString": "contract IERC165" - } - }, - "id": 339, - "nodeType": "InheritanceSpecifier", - "src": "10340:7:1" - } - ], - "contractDependencies": [ - 23 - ], - "contractKind": "contract", - "documentation": "@dev Implementation of the `IERC165` interface.\n * Contracts may inherit from this and call `_registerInterface` to declare\ntheir support of an interface.", - "fullyImplemented": true, - "id": 386, - "linearizedBaseContracts": [ - 386, - 23 - ], - "name": "ERC165", - "nodeType": "ContractDefinition", - "nodes": [ - { - "constant": true, - "id": 342, - "name": "_INTERFACE_ID_ERC165", - "nodeType": "VariableDeclaration", - "scope": 386, - "src": "10437:57:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 340, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "10437:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783031666663396137", - "id": 341, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "10484:10:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_33540519_by_1", - "typeString": "int_const 33540519" - }, - "value": "0x01ffc9a7" - }, - "visibility": "private" - }, - { - "constant": false, - "id": 346, - "name": "_supportedInterfaces", - "nodeType": "VariableDeclaration", - "scope": 386, - "src": "10588:52:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - }, - "typeName": { - "id": 345, - "keyType": { - "id": 343, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "10596:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "Mapping", - "src": "10588:23:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - }, - "valueType": { - "id": 344, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "10606:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "body": { - "id": 353, - "nodeType": "Block", - "src": "10671:193:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 350, - "name": "_INTERFACE_ID_ERC165", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 342, - "src": "10836:20:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - ], - "id": 349, - "name": "_registerInterface", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 385, - "src": "10817:18:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_bytes4_$returns$__$", - "typeString": "function (bytes4)" - } - }, - "id": 351, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "10817:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 352, - "nodeType": "ExpressionStatement", - "src": "10817:40:1" - } - ] - }, - "documentation": null, - "id": 354, - "implemented": true, - "kind": "constructor", - "modifiers": [], - "name": "", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 347, - "nodeType": "ParameterList", - "parameters": [], - "src": "10659:2:1" - }, - "returnParameters": { - "id": 348, - "nodeType": "ParameterList", - "parameters": [], - "src": "10671:0:1" - }, - "scope": 386, - "src": "10647:217:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 365, - "nodeType": "Block", - "src": "11090:57:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 361, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11107:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 363, - "indexExpression": { - "argumentTypes": null, - "id": 362, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 356, - "src": "11128:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "11107:33:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "functionReturnParameters": 360, - "id": 364, - "nodeType": "Return", - "src": "11100:40:1" - } - ] - }, - "documentation": "@dev See `IERC165.supportsInterface`.\n * Time complexity O(1), guaranteed to always use less than 30 000 gas.", - "id": 366, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "supportsInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 357, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 356, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 366, - "src": "11041:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 355, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11041:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11040:20:1" - }, - "returnParameters": { - "id": 360, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 359, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 366, - "src": "11084:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 358, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "11084:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11083:6:1" - }, - "scope": 386, - "src": "11014:133:1", - "stateMutability": "view", - "superFunction": 22, - "visibility": "external" - }, - { - "body": { - "id": 384, - "nodeType": "Block", - "src": "11598:133:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "id": 374, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 372, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11616:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "hexValue": "30786666666666666666", - "id": 373, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11631:10:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_4294967295_by_1", - "typeString": "int_const 4294967295" - }, - "value": "0xffffffff" - }, - "src": "11616:25:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - { - "argumentTypes": null, - "hexValue": "4552433136353a20696e76616c696420696e74657266616365206964", - "id": 375, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "string", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11643:30:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_stringliteral_282912c0dfceceb28d77d0333f496b83948f9ba5b3154358a8b140b849289dee", - "typeString": "literal_string \"ERC165: invalid interface id\"" - }, - "value": "ERC165: invalid interface id" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - { - "typeIdentifier": "t_stringliteral_282912c0dfceceb28d77d0333f496b83948f9ba5b3154358a8b140b849289dee", - "typeString": "literal_string \"ERC165: invalid interface id\"" - } - ], - "id": 371, - "name": "require", - "nodeType": "Identifier", - "overloadedDeclarations": [ - 1543, - 1544 - ], - "referencedDeclaration": 1544, - "src": "11608:7:1", - "typeDescriptions": { - "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", - "typeString": "function (bool,string memory) pure" - } - }, - "id": 376, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "11684:33:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "74727565", - "id": 381, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "bool", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11720:4:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "value": "true" - }, - "src": "11684:40:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "id": 383, - "nodeType": "ExpressionStatement", - "src": "11684:40:1" - } - ] - }, - "documentation": "@dev Registers the contract as an implementer of the interface defined by\n`interfaceId`. Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - }, - "returnParameters": { - "id": 370, - "nodeType": "ParameterList", - "parameters": [], - "src": "11598:0:1" - }, - "scope": 386, - "src": "11541:190:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "10321:1412:1" - }, - { - "id": 387, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "11793:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 388, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "11968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 389, - "nodeType": "InheritanceSpecifier", - "src": "11968:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 390, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "11976:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 391, - "nodeType": "InheritanceSpecifier", - "src": "11976:7:1" - } - ], - "contractDependencies": [ - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 944, - "linearizedBaseContracts": [ - 944, - 124, - 386, - 23 - ], - "name": "ERC721", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 394, - "libraryName": { - "contractScope": null, - "id": 392, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "11996:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "11990:27:1", - "typeName": { - "id": 393, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "12009:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - }, - { - "id": 397, - "libraryName": { - "contractScope": null, - "id": 395, - "name": "Address", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 289, - "src": "12028:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_Address_$289", - "typeString": "library Address" - } - }, - "nodeType": "UsingForDirective", - "src": "12022:26:1", - "typeName": { - "id": 396, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12040:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - } - }, - { - "id": 400, - "libraryName": { - "contractScope": null, - "id": 398, - "name": "Counters", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 336, - "src": "12059:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_Counters_$336", - 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"typeString": "msg" - } - }, - "id": 908, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sender", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "23630:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - { - "argumentTypes": null, - "id": 909, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 882, - "src": "23642:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 910, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 886, - "src": "23648:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - { - "argumentTypes": null, - "id": 911, - "name": "_data", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 888, - "src": "23657:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes memory" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - }, - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes memory" - } - ], - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 904, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 884, - "src": "23609:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - } - ], - "id": 903, - "name": "IERC721Receiver", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 139, - "src": "23593:15:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_contract$_IERC721Receiver_$139_$", - "typeString": "type(contract IERC721Receiver)" - } - }, - "id": 905, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23593:19:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721Receiver_$139", - "typeString": "contract IERC721Receiver" - } - }, - "id": 906, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "onERC721Received", - "nodeType": "MemberAccess", - "referencedDeclaration": 138, - "src": "23593:36:1", - "typeDescriptions": { - "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bytes4_$", - "typeString": "function (address,address,uint256,bytes memory) external returns (bytes4)" - } - }, - "id": 912, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23593:70:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "23577:86:1" - }, - { - "expression": { - "argumentTypes": null, - "components": [ - { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "id": 916, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 914, - "name": "retval", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 902, - "src": "23681:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "BinaryOperation", - "operator": "==", - "rightExpression": { - "argumentTypes": null, - "id": 915, - "name": "_ERC721_RECEIVED", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 403, - "src": "23691:16:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "src": "23681:26:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - } - ], - "id": 917, - "isConstant": false, - "isInlineArray": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "TupleExpression", - "src": "23680:28:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "functionReturnParameters": 892, - "id": 918, - "nodeType": "Return", - "src": "23673:35:1" - } - ] - }, - "documentation": "@dev Internal function to invoke `onERC721Received` on a target address.\nThe call is not executed if the target address is not a contract.\n * This function is deprecated.\n@param from address representing the previous owner of the given token ID\n@param to target address that will receive the tokens\n@param tokenId uint256 ID of the token to be transferred\n@param _data bytes optional data to send along with the call\n@return bool whether the call correctly returned the expected magic value", - "id": 920, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_checkOnERC721Received", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 889, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 882, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23400:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 881, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "23400:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 884, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23414:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 883, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "23414:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 886, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23426:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 885, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "23426:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 888, - "name": "_data", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23443:18:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 887, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "23443:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23399:63:1" - }, - "returnParameters": { - "id": 892, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 891, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23489:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 890, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "23489:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23488:6:1" - }, - "scope": 944, - "src": "23368:347:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 942, - "nodeType": "Block", - "src": "23926:122:1", - "statements": [ - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "id": 931, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 925, - "name": "_tokenApprovals", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 411, - "src": "23940:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - } - }, - "id": 927, - "indexExpression": { - "argumentTypes": null, - "id": 926, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 922, - "src": "23956:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "23940:24:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "30", - "id": 929, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "23976:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - } - ], - "id": 928, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "23968:7:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_address_$", - "typeString": "type(address)" - }, - "typeName": "address" - }, - "id": 930, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23968:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - "src": "23940:38:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 941, - "nodeType": "IfStatement", - "src": "23936:106:1", - "trueBody": { - "id": 940, - "nodeType": "Block", - "src": "23980:62:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 938, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 932, - "name": "_tokenApprovals", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 411, - "src": "23994:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - } - }, - "id": 934, - "indexExpression": { - "argumentTypes": null, - "id": 933, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 922, - "src": "24010:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "23994:24:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "30", - "id": 936, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "24029:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - } - ], - "id": 935, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "24021:7:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_address_$", - "typeString": "type(address)" - }, - "typeName": "address" - }, - "id": 937, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "24021:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - "src": "23994:37:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "id": 939, - "nodeType": "ExpressionStatement", - "src": "23994:37:1" - } - ] - } - } - ] - }, - "documentation": "@dev Private function to clear current approval of a given token ID.\n@param tokenId uint256 ID of the token to be transferred", - "id": 943, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_clearApproval", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 923, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 922, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 943, - "src": "23901:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 921, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "23901:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23900:17:1" - }, - "returnParameters": { - "id": 924, - "nodeType": "ParameterList", - "parameters": [], - "src": "23926:0:1" - }, - "scope": 944, - "src": "23877:171:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - } - ], - "scope": 1469, - "src": "11949:12101:1" - }, - { - "id": 945, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "24121:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 946, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "24314:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 947, - "nodeType": "InheritanceSpecifier", - "src": "24314:7:1" - } - ], - "contractDependencies": [ - 23, - 124 - ], - "contractKind": "contract", - "documentation": "@title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n@dev See https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": false, - "id": 969, - "linearizedBaseContracts": [ - 969, - 124, - 23 - ], - "name": "IERC721Enumerable", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": null, - "id": 952, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "totalSupply", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 948, - "nodeType": "ParameterList", - "parameters": [], - "src": "24348:2:1" - }, - "returnParameters": { - "id": 951, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 950, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 952, - "src": "24372:7:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 949, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24372:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24371:9:1" - }, - "scope": 969, - "src": "24328:53:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 961, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "tokenOfOwnerByIndex", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 957, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 954, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 961, - "src": "24415:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 953, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "24415:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 956, - "name": "index", - "nodeType": "VariableDeclaration", - "scope": 961, - "src": "24430:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 955, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24430:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24414:30:1" - }, - "returnParameters": { - "id": 960, - 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} - ], - "src": "29262:19:1" - }, - "scope": 1302, - "src": "29201:124:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 1175, - "nodeType": "Block", - "src": "29693:109:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 1166, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1159, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "29703:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1161, - "indexExpression": { - "argumentTypes": null, - "id": 1160, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1156, - "src": "29721:7:1", - 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"src": "29745:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "29732:16:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1165, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "29732:23:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "29703:52:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1167, - "nodeType": "ExpressionStatement", - "src": "29703:52:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1172, - "name": "tokenId", - 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"nodeType": "ExpressionStatement", - "src": "29765:30:1" - } - ] - }, - "documentation": "@dev Private function to add a token to this extension's ownership-tracking data structures.\n@param to address representing the new owner of the given token ID\n@param tokenId uint256 ID of the token to be added to the tokens list of the given address", - "id": 1176, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_addTokenToOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1157, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1154, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1176, - "src": "29656:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1153, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "29656:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1156, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1176, - "src": "29668:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1155, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "29668:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "29655:29:1" - }, - "returnParameters": { - "id": 1158, - "nodeType": "ParameterList", - "parameters": [], - "src": "29693:0:1" - }, - "scope": 1302, - "src": "29619:183:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1194, - "nodeType": "Block", - "src": "30063:95:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 1186, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1181, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "30073:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1183, - "indexExpression": { - "argumentTypes": null, - "id": 1182, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1178, - "src": "30089:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "30073:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1184, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30100:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1185, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30100:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "30073:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1187, - "nodeType": "ExpressionStatement", - "src": "30073:44:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1191, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1178, - "src": "30143:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1188, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30127:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1190, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "push", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30127:15:1", - 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"name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1243, - "src": "31297:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1221, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31297:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1228, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1223, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31319:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1225, - "indexExpression": { - "argumentTypes": null, - "id": 1224, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31332:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1227, - "indexExpression": { - "argumentTypes": null, - "id": 1226, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31338:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:34:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "32485:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1259, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32463:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1260, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "32463:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1261, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1265, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32497:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1270, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1267, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "32518:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1269, - "indexExpression": { - "argumentTypes": null, - "id": 1268, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "32534:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - 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null, - "visibility": "internal" - } - ], - "src": "36226:32:1" - }, - "returnParameters": { - "id": 1423, - "nodeType": "ParameterList", - "parameters": [], - "src": "36268:0:1" - }, - "scope": 1448, - "src": "36212:240:1", - "stateMutability": "nonpayable", - "superFunction": 811, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "33817:2637:1" - }, - { - "id": 1449, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "36518:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1450, - "name": "ERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 944, - "src": "36838:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721_$944", - "typeString": "contract ERC721" - } - }, - "id": 1451, - "nodeType": "InheritanceSpecifier", - "src": "36838:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1452, - "name": "ERC721Enumerable", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 1302, - "src": "36846:16:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721Enumerable_$1302", - "typeString": "contract ERC721Enumerable" - } - }, - "id": 1453, - "nodeType": "InheritanceSpecifier", - "src": "36846:16:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1454, - "name": "ERC721Metadata", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 1448, - "src": "36864:14:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721Metadata_$1448", - "typeString": "contract ERC721Metadata" - } - }, - "id": 1455, - "nodeType": "InheritanceSpecifier", - "src": "36864:14:1" - } - ], - "contractDependencies": [ - 944, - 969, - 23, - 124, - 386, - 1302, - 1323, - 1448 - ], - "contractKind": "contract", - "documentation": "@title Full ERC721 Token\nThis implementation includes all the required and some optional functionality of the ERC721 standard\nMoreover, it includes approve all functionality using operator terminology\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 1468, - "linearizedBaseContracts": [ - 1468, - 1448, - 1323, - 1302, - 969, - 944, - 124, - 386, - 23 - ], - "name": "ERC721Full", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": { - "id": 1466, - "nodeType": "Block", - "src": "36976:64:1", - "statements": [] - }, - "documentation": null, - "id": 1467, - "implemented": true, - "kind": "constructor", - "modifiers": [ - { - "arguments": [ - { - "argumentTypes": null, - "id": 1462, - "name": "name", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1457, - "src": "36962:4:1", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string memory" - } - }, - { - "argumentTypes": null, - "id": 1463, - "name": "symbol", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1459, - "src": "36968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string memory" - } - } - ], - "id": 1464, - "modifierName": { - "argumentTypes": null, - "id": 1461, - "name": "ERC721Metadata", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1448, - "src": "36947:14:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_contract$_ERC721Metadata_$1448_$", - "typeString": "type(contract ERC721Metadata)" - } - }, - "nodeType": "ModifierInvocation", - "src": "36947:28:1" - } - ], - "name": "", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1460, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1457, - "name": "name", - "nodeType": "VariableDeclaration", - "scope": 1467, - "src": "36898:18:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1456, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "36898:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1459, - "name": "symbol", - "nodeType": "VariableDeclaration", - "scope": 1467, - "src": "36918:20:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1458, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "36918:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "36897:42:1" - }, - "returnParameters": { - "id": 1465, - "nodeType": "ParameterList", - "parameters": [], - "src": "36976:0:1" - }, - "scope": 1468, - "src": "36885:155:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "36815:227:1" - } - ], - "src": "61:36982:1" - }, - "compiler": { - "name": "solc", - "version": "0.5.0+commit.1d4f565a.Emscripten.clang" - }, - "networks": {}, - "schemaVersion": "3.0.2", - "updatedAt": "2019-09-05T15:01:08.572Z", - "devdoc": { - "details": "Implementation of the `IERC165` interface. * Contracts may inherit from this and call `_registerInterface` to declare their support of an interface.", - "methods": { - "supportsInterface(bytes4)": { - "details": "See `IERC165.supportsInterface`. * Time complexity O(1), guaranteed to always use less than 30 000 gas." - } - } - }, - "userdoc": { - "methods": {} - } -} \ No newline at end of file diff --git a/src/abis/ERC721.json b/src/abis/ERC721.json deleted file mode 100644 index 049fb2f..0000000 --- a/src/abis/ERC721.json +++ /dev/null @@ -1,37799 +0,0 @@ -{ - "contractName": "ERC721", - "abi": [ - { - "constant": true, - "inputs": [ - { - "name": "interfaceId", - "type": "bytes4" - } - ], - "name": "supportsInterface", - "outputs": [ - { - "name": "", - "type": "bool" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "inputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "constructor" - }, - { - "anonymous": false, - "inputs": [ - { - "indexed": true, - "name": "from", - "type": "address" - }, - { - "indexed": true, - "name": "to", - "type": "address" - }, - { - "indexed": true, - "name": "tokenId", - "type": "uint256" - } - ], - "name": "Transfer", - "type": "event" - }, - { - "anonymous": false, - "inputs": [ - { - "indexed": true, - "name": "owner", - "type": "address" - }, - { - "indexed": true, - "name": "approved", - "type": "address" - }, - { - "indexed": true, - "name": "tokenId", - "type": "uint256" - } - ], - "name": "Approval", - "type": "event" - }, - { - "anonymous": false, - "inputs": [ - { - "indexed": true, - "name": "owner", - "type": "address" - }, - { - "indexed": true, - "name": "operator", - "type": "address" - }, - { - "indexed": false, - "name": "approved", - "type": "bool" - } - ], - "name": "ApprovalForAll", - "type": "event" - }, - { - "constant": true, - "inputs": [ - { - "name": "owner", - "type": "address" - } - ], - "name": "balanceOf", - "outputs": [ - { - "name": "", - "type": "uint256" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "ownerOf", - "outputs": [ - { - "name": "", - "type": "address" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "approve", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": 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- "source": "\n// File: @openzeppelin/contracts/introspection/IERC165.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * [EIP](https://eips.ethereum.org/EIPS/eip-165).\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others (`ERC165Checker`).\n *\n * For an implementation, see `ERC165`.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ncontract IERC721 is IERC165 {\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of NFTs in `owner`'s account.\n */\n function balanceOf(address owner) public view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the NFT specified by `tokenId`.\n */\n function ownerOf(uint256 tokenId) public view returns (address owner);\n\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * \n *\n * Requirements:\n * - `from`, `to` cannot be zero.\n * - `tokenId` must be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this\n * NFT by either `approve` or `setApproveForAll`.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public;\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * Requirements:\n * - If the caller is not `from`, it must be approved to move this NFT by\n * either `approve` or `setApproveForAll`.\n */\n function transferFrom(address from, address to, uint256 tokenId) public;\n function approve(address to, uint256 tokenId) public;\n function getApproved(uint256 tokenId) public view returns (address operator);\n\n function setApprovalForAll(address operator, bool _approved) public;\n function isApprovedForAll(address owner, address operator) public view returns (bool);\n\n\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public;\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ncontract IERC721Receiver {\n /**\n * @notice Handle the receipt of an NFT\n * @dev The ERC721 smart contract calls this function on the recipient\n * after a `safeTransfer`. This function MUST return the function selector,\n * otherwise the caller will revert the transaction. The selector to be\n * returned can be obtained as `this.onERC721Received.selector`. This\n * function MAY throw to revert and reject the transfer.\n * Note: the ERC721 contract address is always the message sender.\n * @param operator The address which called `safeTransferFrom` function\n * @param from The address which previously owned the token\n * @param tokenId The NFT identifier which is being transferred\n * @param data Additional data with no specified format\n * @return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n */\n function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data)\n public returns (bytes4);\n}\n\n// File: @openzeppelin/contracts/math/SafeMath.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\n * checks.\n *\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\n * in bugs, because programmers usually assume that an overflow raises an\n * error, which is the standard behavior in high level programming languages.\n * `SafeMath` restores this intuition by reverting the transaction when an\n * operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeMath {\n /**\n * @dev Returns the addition of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `+` operator.\n *\n * Requirements:\n * - Addition cannot overflow.\n */\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting on\n * overflow (when the result is negative).\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n * - Subtraction cannot overflow.\n */\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b <= a, \"SafeMath: subtraction overflow\");\n uint256 c = a - b;\n\n return c;\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `*` operator.\n *\n * Requirements:\n * - Multiplication cannot overflow.\n */\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers. Reverts on\n * division by zero. The result is rounded towards zero.\n *\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n * uses an invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n // Solidity only automatically asserts when dividing by 0\n require(b > 0, \"SafeMath: division by zero\");\n uint256 c = a / b;\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n return c;\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * Reverts when dividing by zero.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b != 0, \"SafeMath: modulo by zero\");\n return a % b;\n }\n}\n\n// File: @openzeppelin/contracts/utils/Address.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Collection of functions related to the address type,\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * This test is non-exhaustive, and there may be false-negatives: during the\n * execution of a contract's constructor, its address will be reported as\n * not containing a contract.\n *\n * > It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies in extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n}\n\n// File: @openzeppelin/contracts/drafts/Counters.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title Counters\n * @author Matt Condon (@shrugs)\n * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number\n * of elements in a mapping, issuing ERC721 ids, or counting request ids.\n *\n * Include with `using Counters for Counters.Counter;`\n * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath\n * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never\n * directly accessed.\n */\nlibrary Counters {\n using SafeMath for uint256;\n\n struct Counter {\n // This variable should never be directly accessed by users of the library: interactions must be restricted to\n // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add\n // this feature: see https://github.com/ethereum/solidity/issues/4637\n uint256 _value; // default: 0\n }\n\n function current(Counter storage counter) internal view returns (uint256) {\n return counter._value;\n }\n\n function increment(Counter storage counter) internal {\n counter._value += 1;\n }\n\n function decrement(Counter storage counter) internal {\n counter._value = counter._value.sub(1);\n }\n}\n\n// File: @openzeppelin/contracts/introspection/ERC165.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Implementation of the `IERC165` interface.\n *\n * Contracts may inherit from this and call `_registerInterface` to declare\n * their support of an interface.\n */\ncontract ERC165 is IERC165 {\n /*\n * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7\n */\n bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;\n\n /**\n * @dev Mapping of interface ids to whether or not it's supported.\n */\n mapping(bytes4 => bool) private _supportedInterfaces;\n\n constructor () internal {\n // Derived contracts need only register support for their own interfaces,\n // we register support for ERC165 itself here\n _registerInterface(_INTERFACE_ID_ERC165);\n }\n\n /**\n * @dev See `IERC165.supportsInterface`.\n *\n * Time complexity O(1), guaranteed to always use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool) {\n return _supportedInterfaces[interfaceId];\n }\n\n /**\n * @dev Registers the contract as an implementer of the interface defined by\n * `interfaceId`. Support of the actual ERC165 interface is automatic and\n * registering its interface id is not required.\n *\n * See `IERC165.supportsInterface`.\n *\n * Requirements:\n *\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).\n */\n function _registerInterface(bytes4 interfaceId) internal {\n require(interfaceId != 0xffffffff, \"ERC165: invalid interface id\");\n _supportedInterfaces[interfaceId] = true;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n\n\n\n/**\n * @title ERC721 Non-Fungible Token Standard basic implementation\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721 is ERC165, IERC721 {\n using SafeMath for uint256;\n using Address for address;\n using Counters for Counters.Counter;\n\n // Equals to `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`\n bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;\n\n // Mapping from token ID to owner\n mapping (uint256 => address) private _tokenOwner;\n\n // Mapping from token ID to approved address\n mapping (uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to number of owned token\n mapping (address => Counters.Counter) private _ownedTokensCount;\n\n // Mapping from owner to operator approvals\n mapping (address => mapping (address => bool)) private _operatorApprovals;\n\n /*\n * bytes4(keccak256('balanceOf(address)')) == 0x70a08231\n * bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e\n * bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3\n * bytes4(keccak256('getApproved(uint256)')) == 0x081812fc\n * bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465\n * bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c\n * bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd\n * bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e\n * bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde\n *\n * => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^\n * 0xa22cb465 ^ 0xe985e9c ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd\n */\n bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;\n\n constructor () public {\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721);\n }\n\n /**\n * @dev Gets the balance of the specified address.\n * @param owner address to query the balance of\n * @return uint256 representing the amount owned by the passed address\n */\n function balanceOf(address owner) public view returns (uint256) {\n require(owner != address(0), \"ERC721: balance query for the zero address\");\n\n return _ownedTokensCount[owner].current();\n }\n\n /**\n * @dev Gets the owner of the specified token ID.\n * @param tokenId uint256 ID of the token to query the owner of\n * @return address currently marked as the owner of the given token ID\n */\n function ownerOf(uint256 tokenId) public view returns (address) {\n address owner = _tokenOwner[tokenId];\n require(owner != address(0), \"ERC721: owner query for nonexistent token\");\n\n return owner;\n }\n\n /**\n * @dev Approves another address to transfer the given token ID\n * The zero address indicates there is no approved address.\n * There can only be one approved address per token at a given time.\n * Can only be called by the token owner or an approved operator.\n * @param to address to be approved for the given token ID\n * @param tokenId uint256 ID of the token to be approved\n */\n function approve(address to, uint256 tokenId) public {\n address owner = ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(msg.sender == owner || isApprovedForAll(owner, msg.sender),\n \"ERC721: approve caller is not owner nor approved for all\"\n );\n\n _tokenApprovals[tokenId] = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Gets the approved address for a token ID, or zero if no address set\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to query the approval of\n * @return address currently approved for the given token ID\n */\n function getApproved(uint256 tokenId) public view returns (address) {\n require(_exists(tokenId), \"ERC721: approved query for nonexistent token\");\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev Sets or unsets the approval of a given operator\n * An operator is allowed to transfer all tokens of the sender on their behalf.\n * @param to operator address to set the approval\n * @param approved representing the status of the approval to be set\n */\n function setApprovalForAll(address to, bool approved) public {\n require(to != msg.sender, \"ERC721: approve to caller\");\n\n _operatorApprovals[msg.sender][to] = approved;\n emit ApprovalForAll(msg.sender, to, approved);\n }\n\n /**\n * @dev Tells whether an operator is approved by a given owner.\n * @param owner owner address which you want to query the approval of\n * @param operator operator address which you want to query the approval of\n * @return bool whether the given operator is approved by the given owner\n */\n function isApprovedForAll(address owner, address operator) public view returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev Transfers the ownership of a given token ID to another address.\n * Usage of this method is discouraged, use `safeTransferFrom` whenever possible.\n * Requires the msg.sender to be the owner, approved, or operator.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function transferFrom(address from, address to, uint256 tokenId) public {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(msg.sender, tokenId), \"ERC721: transfer caller is not owner nor approved\");\n\n _transferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes data to send along with a safe transfer check\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public {\n transferFrom(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, _data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns whether the specified token exists.\n * @param tokenId uint256 ID of the token to query the existence of\n * @return bool whether the token exists\n */\n function _exists(uint256 tokenId) internal view returns (bool) {\n address owner = _tokenOwner[tokenId];\n return owner != address(0);\n }\n\n /**\n * @dev Returns whether the given spender can transfer a given token ID.\n * @param spender address of the spender to query\n * @param tokenId uint256 ID of the token to be transferred\n * @return bool whether the msg.sender is approved for the given token ID,\n * is an operator of the owner, or is the owner of the token\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view returns (bool) {\n require(_exists(tokenId), \"ERC721: operator query for nonexistent token\");\n address owner = ownerOf(tokenId);\n return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to The address that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _tokenOwner[tokenId] = to;\n _ownedTokensCount[to].increment();\n\n emit Transfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n require(ownerOf(tokenId) == owner, \"ERC721: burn of token that is not own\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[owner].decrement();\n _tokenOwner[tokenId] = address(0);\n\n emit Transfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(uint256 tokenId) internal {\n _burn(ownerOf(tokenId), tokenId);\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n require(ownerOf(tokenId) == from, \"ERC721: transfer of token that is not own\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[from].decrement();\n _ownedTokensCount[to].increment();\n\n _tokenOwner[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n }\n\n /**\n * @dev Internal function to invoke `onERC721Received` on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * This function is deprecated.\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data)\n internal returns (bool)\n {\n if (!to.isContract()) {\n return true;\n }\n\n bytes4 retval = IERC721Receiver(to).onERC721Received(msg.sender, from, tokenId, _data);\n return (retval == _ERC721_RECEIVED);\n }\n\n /**\n * @dev Private function to clear current approval of a given token ID.\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _clearApproval(uint256 tokenId) private {\n if (_tokenApprovals[tokenId] != address(0)) {\n _tokenApprovals[tokenId] = address(0);\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Enumerable is IERC721 {\n function totalSupply() public view returns (uint256);\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256 tokenId);\n\n function tokenByIndex(uint256 index) public view returns (uint256);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title ERC-721 Non-Fungible Token with optional enumeration extension logic\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Enumerable is ERC165, ERC721, IERC721Enumerable {\n // Mapping from owner to list of owned token IDs\n mapping(address => uint256[]) private _ownedTokens;\n\n // Mapping from token ID to index of the owner tokens list\n mapping(uint256 => uint256) private _ownedTokensIndex;\n\n // Array with all token ids, used for enumeration\n uint256[] private _allTokens;\n\n // Mapping from token id to position in the allTokens array\n mapping(uint256 => uint256) private _allTokensIndex;\n\n /*\n * bytes4(keccak256('totalSupply()')) == 0x18160ddd\n * bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59\n * bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7\n *\n * => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63\n */\n bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;\n\n /**\n * @dev Constructor function.\n */\n constructor () public {\n // register the supported interface to conform to ERC721Enumerable via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);\n }\n\n /**\n * @dev Gets the token ID at a given index of the tokens list of the requested owner.\n * @param owner address owning the tokens list to be accessed\n * @param index uint256 representing the index to be accessed of the requested tokens list\n * @return uint256 token ID at the given index of the tokens list owned by the requested address\n */\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) {\n require(index < balanceOf(owner), \"ERC721Enumerable: owner index out of bounds\");\n return _ownedTokens[owner][index];\n }\n\n /**\n * @dev Gets the total amount of tokens stored by the contract.\n * @return uint256 representing the total amount of tokens\n */\n function totalSupply() public view returns (uint256) {\n return _allTokens.length;\n }\n\n /**\n * @dev Gets the token ID at a given index of all the tokens in this contract\n * Reverts if the index is greater or equal to the total number of tokens.\n * @param index uint256 representing the index to be accessed of the tokens list\n * @return uint256 token ID at the given index of the tokens list\n */\n function tokenByIndex(uint256 index) public view returns (uint256) {\n require(index < totalSupply(), \"ERC721Enumerable: global index out of bounds\");\n return _allTokens[index];\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n super._transferFrom(from, to, tokenId);\n\n _removeTokenFromOwnerEnumeration(from, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to address the beneficiary that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n super._mint(to, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n\n _addTokenToAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n _removeTokenFromOwnerEnumeration(owner, tokenId);\n // Since tokenId will be deleted, we can clear its slot in _ownedTokensIndex to trigger a gas refund\n _ownedTokensIndex[tokenId] = 0;\n\n _removeTokenFromAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Gets the list of token IDs of the requested owner.\n * @param owner address owning the tokens\n * @return uint256[] List of token IDs owned by the requested address\n */\n function _tokensOfOwner(address owner) internal view returns (uint256[] storage) {\n return _ownedTokens[owner];\n }\n\n /**\n * @dev Private function to add a token to this extension's ownership-tracking data structures.\n * @param to address representing the new owner of the given token ID\n * @param tokenId uint256 ID of the token to be added to the tokens list of the given address\n */\n function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {\n _ownedTokensIndex[tokenId] = _ownedTokens[to].length;\n _ownedTokens[to].push(tokenId);\n }\n\n /**\n * @dev Private function to add a token to this extension's token tracking data structures.\n * @param tokenId uint256 ID of the token to be added to the tokens list\n */\n function _addTokenToAllTokensEnumeration(uint256 tokenId) private {\n _allTokensIndex[tokenId] = _allTokens.length;\n _allTokens.push(tokenId);\n }\n\n /**\n * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\n * while the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\n * gas optimizations e.g. when performing a transfer operation (avoiding double writes).\n * This has O(1) time complexity, but alters the order of the _ownedTokens array.\n * @param from address representing the previous owner of the given token ID\n * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address\n */\n function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {\n // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _ownedTokens[from].length.sub(1);\n uint256 tokenIndex = _ownedTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary\n if (tokenIndex != lastTokenIndex) {\n uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];\n\n _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n }\n\n // This also deletes the contents at the last position of the array\n _ownedTokens[from].length--;\n\n // Note that _ownedTokensIndex[tokenId] hasn't been cleared: it still points to the old slot (now occupied by\n // lastTokenId, or just over the end of the array if the token was the last one).\n }\n\n /**\n * @dev Private function to remove a token from this extension's token tracking data structures.\n * This has O(1) time complexity, but alters the order of the _allTokens array.\n * @param tokenId uint256 ID of the token to be removed from the tokens list\n */\n function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {\n // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _allTokens.length.sub(1);\n uint256 tokenIndex = _allTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so\n // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding\n // an 'if' statement (like in _removeTokenFromOwnerEnumeration)\n uint256 lastTokenId = _allTokens[lastTokenIndex];\n\n _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n\n // This also deletes the contents at the last position of the array\n _allTokens.length--;\n _allTokensIndex[tokenId] = 0;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Metadata is IERC721 {\n function name() external view returns (string memory);\n function symbol() external view returns (string memory);\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n\n\ncontract ERC721Metadata is ERC165, ERC721, IERC721Metadata {\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Optional mapping for token URIs\n mapping(uint256 => string) private _tokenURIs;\n\n /*\n * bytes4(keccak256('name()')) == 0x06fdde03\n * bytes4(keccak256('symbol()')) == 0x95d89b41\n * bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd\n *\n * => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f\n */\n bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;\n\n /**\n * @dev Constructor function\n */\n constructor (string memory name, string memory symbol) public {\n _name = name;\n _symbol = symbol;\n\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_METADATA);\n }\n\n /**\n * @dev Gets the token name.\n * @return string representing the token name\n */\n function name() external view returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Gets the token symbol.\n * @return string representing the token symbol\n */\n function symbol() external view returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns an URI for a given token ID.\n * Throws if the token ID does not exist. May return an empty string.\n * @param tokenId uint256 ID of the token to query\n */\n function tokenURI(uint256 tokenId) external view returns (string memory) {\n require(_exists(tokenId), \"ERC721Metadata: URI query for nonexistent token\");\n return _tokenURIs[tokenId];\n }\n\n /**\n * @dev Internal function to set the token URI for a given token.\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to set its URI\n * @param uri string URI to assign\n */\n function _setTokenURI(uint256 tokenId, string memory uri) internal {\n require(_exists(tokenId), \"ERC721Metadata: URI set of nonexistent token\");\n _tokenURIs[tokenId] = uri;\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned by the msg.sender\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n // Clear metadata (if any)\n if (bytes(_tokenURIs[tokenId]).length != 0) {\n delete _tokenURIs[tokenId];\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Full.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title Full ERC721 Token\n * This implementation includes all the required and some optional functionality of the ERC721 standard\n * Moreover, it includes approve all functionality using operator terminology\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Full is ERC721, ERC721Enumerable, ERC721Metadata {\n constructor (string memory name, string memory symbol) public ERC721Metadata(name, symbol) {\n // solhint-disable-previous-line no-empty-blocks\n }\n}\n", - "sourcePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "ast": { - "absolutePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "exportedSymbols": { - "Address": [ - 289 - ], - "Counters": [ - 336 - ], - "ERC165": [ - 386 - ], - "ERC721": [ - 944 - ], - "ERC721Enumerable": [ - 1302 - ], - "ERC721Full": [ - 1468 - ], - "ERC721Metadata": [ - 1448 - ], - "IERC165": [ - 23 - ], - "IERC721": [ - 124 - ], - "IERC721Enumerable": [ - 969 - ], - "IERC721Metadata": [ - 1323 - ], - "IERC721Receiver": [ - 139 - ], - "SafeMath": [ - 271 - ] - }, - "id": 1469, - "nodeType": "SourceUnit", - "nodes": [ - { - "id": 15, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "61:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "interface", - "documentation": "@dev Interface of the ERC165 standard, as defined in the\n[EIP](https://eips.ethereum.org/EIPS/eip-165).\n * Implementers can declare support of contract interfaces, which can then be\nqueried by others (`ERC165Checker`).\n * For an implementation, see `ERC165`.", - "fullyImplemented": false, - "id": 23, - "linearizedBaseContracts": [ - 23 - ], - "name": "IERC165", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@dev Returns true if this contract implements the interface defined by\n`interfaceId`. 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"scope": 64, - "src": "1569:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 61, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1569:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1568:15:1" - }, - "scope": 124, - "src": "1514:70:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * \n * Requirements:\n- `from`, `to` cannot be zero.\n- `tokenId` must be owned by `from`.\n- If the caller is not `from`, it must be have been allowed to move this\nNFT by either `approve` or `setApproveForAll`.", - "id": 73, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 71, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 66, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "1992:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 65, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1992:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 68, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2006:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 67, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2006:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 70, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2018:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 69, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2018:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1991:43:1" - }, - "returnParameters": { - "id": 72, - "nodeType": "ParameterList", - "parameters": [], - "src": "2041:0:1" - }, - "scope": 124, - "src": "1966:76:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * Requirements:\n- If the caller is not `from`, it must be approved to move this NFT by\neither `approve` or `setApproveForAll`.", - "id": 82, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 80, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 75, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2339:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 74, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2339:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 77, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2353:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 76, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2353:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 79, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2365:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 78, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2365:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2338:43:1" - }, - "returnParameters": { - "id": 81, - "nodeType": "ParameterList", - "parameters": [], - "src": "2388:0:1" - }, - "scope": 124, - "src": "2317:72:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 89, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "approve", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 87, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 84, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2411:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 83, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2411:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 86, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2423:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 85, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2423:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2410:29:1" - }, - "returnParameters": { - "id": 88, - "nodeType": "ParameterList", - "parameters": [], - "src": "2446:0:1" - }, - "scope": 124, - "src": "2394:53:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 96, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "getApproved", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 92, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 91, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2473:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 90, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2473:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2472:17:1" - }, - "returnParameters": { - "id": 95, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 94, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2511:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 93, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2511:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2510:18:1" - }, - "scope": 124, - "src": "2452:77:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 103, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "setApprovalForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 101, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 98, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2562:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 97, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2562:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 100, - "name": "_approved", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2580:14:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 99, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2580:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2561:34:1" - }, - "returnParameters": { - "id": 102, - "nodeType": "ParameterList", - "parameters": [], - "src": "2602:0:1" - }, - "scope": 124, - "src": "2535:68:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 112, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "isApprovedForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 108, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 105, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2634:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 104, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2634:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 107, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2649:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 106, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2649:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2633:33:1" - }, - "returnParameters": { - "id": 111, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 110, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2688:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 109, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2688:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2687:6:1" - }, - "scope": 124, - "src": "2608:86:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 123, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 121, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 114, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2727:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 113, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2727:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 116, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2741:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 115, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2741:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 118, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2753:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 117, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2753:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 120, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2770:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 119, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "2770:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2726:62:1" - }, - "returnParameters": { - "id": 122, - "nodeType": "ParameterList", - "parameters": [], - "src": "2795:0:1" - }, - "scope": 124, - "src": "2701:95:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "972:1826:1" - }, - { - "id": 125, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "2867:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "contract", - "documentation": "@title ERC721 token receiver interface\n@dev Interface for any contract that wants to support safeTransfers\nfrom ERC721 asset contracts.", - "fullyImplemented": false, - "id": 139, - "linearizedBaseContracts": [ - 139 - ], - "name": "IERC721Receiver", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@notice Handle the receipt of an NFT\n@dev The ERC721 smart contract calls this function on the recipient\nafter a `safeTransfer`. This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. This\nfunction MAY throw to revert and reject the transfer.\nNote: the ERC721 contract address is always the message sender.\n@param operator The address which called `safeTransferFrom` function\n@param from The address which previously owned the token\n@param tokenId The NFT identifier which is being transferred\n@param data Additional data with no specified format\n@return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`", - "id": 138, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "onERC721Received", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 134, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 127, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3960:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 126, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "3960:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 129, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3978:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 128, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "3978:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 131, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3992:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 130, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "3992:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 133, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "4009:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 132, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "4009:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "3959:68:1" - }, - "returnParameters": { - "id": 137, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 136, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "4048:6:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 135, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "4048:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "4047:8:1" - }, - "scope": 139, - "src": "3934:122:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "3045:1013:1" - }, - { - "id": 140, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "4112:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "library", - "documentation": "@dev Wrappers over Solidity's arithmetic operations with added overflow\nchecks.\n * Arithmetic operations in Solidity wrap on overflow. 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Reverts on\ndivision by zero. The result is rounded towards zero.\n * Counterpart to Solidity's `/` operator. 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(unsigned integer modulo),\nReverts when dividing by zero.\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\nopcode (which leaves remaining gas untouched) while Solidity uses an\ninvalid opcode to revert (consuming all remaining gas).\n * Requirements:\n- The divisor cannot be zero.", - "id": 270, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "mod", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 254, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 251, - "name": "a", - "nodeType": "VariableDeclaration", - "scope": 270, - "src": "7502:9:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 250, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "7502:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 253, - "name": "b", - "nodeType": "VariableDeclaration", - 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This can be used e.g. to track the number\nof elements in a mapping, issuing ERC721 ids, or counting request ids.\n * Include with `using Counters for Counters.Counter;`\nSince it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath\noverflow check, thereby saving gas. 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"typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 600, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 619, - "src": "17522:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 599, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "17522:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "17495:43:1" - }, - "returnParameters": { - "id": 602, - "nodeType": "ParameterList", - "parameters": [], - "src": "17546:0:1" - }, - "scope": 944, - "src": "17474:285:1", - "stateMutability": "nonpayable", - "superFunction": 82, - "visibility": "public" - }, - { - "body": { - "id": 635, - "nodeType": "Block", - "src": "18468:56:1", - 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"src": "22761:8:1", - "typeDescriptions": { - "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,address,uint256)" - } - }, - "id": 877, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "22761:27:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 878, - "nodeType": "EmitStatement", - "src": "22756:32:1" - } - ] - }, - "documentation": "@dev Internal function to transfer ownership of a given token ID to another address.\nAs opposed to transferFrom, this imposes no restrictions on msg.sender.\n@param from current owner of the token\n@param to address to receive the ownership of the given token ID\n@param tokenId uint256 ID of the token to be transferred", - "id": 880, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 831, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 826, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 880, - "src": "22371:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 825, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "22371:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 828, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 880, - "src": "22385:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 827, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "22385:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 830, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 880, - "src": "22397:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 829, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "22397:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "22370:43:1" - }, - "returnParameters": { - "id": 832, - "nodeType": "ParameterList", - "parameters": [], - "src": "22423:0:1" - }, - "scope": 944, - "src": "22348:447:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 919, - "nodeType": "Block", - "src": "23499:216:1", - "statements": [ - { - "condition": { - "argumentTypes": null, - "id": 896, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "!", - "prefix": true, - "src": "23513:16:1", - "subExpression": { - "argumentTypes": null, - "arguments": [], - "expression": { - "argumentTypes": [], - "expression": { - "argumentTypes": null, - "id": 893, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 884, - "src": "23514:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "id": 894, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "isContract", - "nodeType": "MemberAccess", - "referencedDeclaration": 288, - "src": "23514:13:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_view$_t_address_$returns$_t_bool_$bound_to$_t_address_$", - "typeString": "function (address) view returns (bool)" - } - }, - "id": 895, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23514:15:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 900, - "nodeType": "IfStatement", - "src": "23509:58:1", - "trueBody": { - "id": 899, - "nodeType": "Block", - "src": "23531:36:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "hexValue": "74727565", - "id": 897, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "bool", - "lValueRequested": false, - "nodeType": "Literal", - "src": "23552:4:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "value": "true" - }, - "functionReturnParameters": 892, - "id": 898, - "nodeType": "Return", - "src": "23545:11:1" - } - ] - } - }, - { - "assignments": [ - 902 - ], - "declarations": [ - { - "constant": false, - "id": 902, - "name": "retval", - "nodeType": "VariableDeclaration", - "scope": 919, - "src": "23577:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 901, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "23577:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 913, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 907, - "name": "msg", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1540, - "src": "23630:3:1", - "typeDescriptions": { - "typeIdentifier": "t_magic_message", - "typeString": "msg" - } - }, - "id": 908, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sender", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "23630:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - { - "argumentTypes": null, - "id": 909, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 882, - "src": "23642:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 910, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 886, - "src": "23648:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - { - "argumentTypes": null, - "id": 911, - "name": "_data", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 888, - "src": "23657:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes memory" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - }, - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes memory" - } - ], - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 904, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 884, - "src": "23609:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - } - ], - "id": 903, - "name": "IERC721Receiver", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 139, - "src": "23593:15:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_contract$_IERC721Receiver_$139_$", - "typeString": "type(contract IERC721Receiver)" - } - }, - "id": 905, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23593:19:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721Receiver_$139", - "typeString": "contract IERC721Receiver" - } - }, - "id": 906, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "onERC721Received", - "nodeType": "MemberAccess", - "referencedDeclaration": 138, - "src": "23593:36:1", - "typeDescriptions": { - "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bytes4_$", - "typeString": "function (address,address,uint256,bytes memory) external returns (bytes4)" - } - }, - "id": 912, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23593:70:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "23577:86:1" - }, - { - "expression": { - "argumentTypes": null, - "components": [ - { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "id": 916, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 914, - "name": "retval", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 902, - "src": "23681:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "BinaryOperation", - "operator": "==", - "rightExpression": { - "argumentTypes": null, - "id": 915, - "name": "_ERC721_RECEIVED", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 403, - "src": "23691:16:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "src": "23681:26:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - } - ], - "id": 917, - "isConstant": false, - "isInlineArray": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "TupleExpression", - "src": "23680:28:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "functionReturnParameters": 892, - "id": 918, - "nodeType": "Return", - "src": "23673:35:1" - } - ] - }, - "documentation": "@dev Internal function to invoke `onERC721Received` on a target address.\nThe call is not executed if the target address is not a contract.\n * This function is deprecated.\n@param from address representing the previous owner of the given token ID\n@param to target address that will receive the tokens\n@param tokenId uint256 ID of the token to be transferred\n@param _data bytes optional data to send along with the call\n@return bool whether the call correctly returned the expected magic value", - "id": 920, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_checkOnERC721Received", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 889, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 882, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23400:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 881, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "23400:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 884, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23414:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 883, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "23414:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 886, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23426:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 885, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "23426:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 888, - "name": "_data", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23443:18:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 887, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "23443:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23399:63:1" - }, - "returnParameters": { - "id": 892, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 891, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23489:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 890, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "23489:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23488:6:1" - }, - "scope": 944, - "src": "23368:347:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 942, - "nodeType": "Block", - "src": "23926:122:1", - "statements": [ - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "id": 931, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 925, - "name": "_tokenApprovals", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 411, - "src": "23940:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - } - }, - "id": 927, - "indexExpression": { - "argumentTypes": null, - "id": 926, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 922, - "src": "23956:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "23940:24:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "30", - "id": 929, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "23976:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - } - ], - "id": 928, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "23968:7:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_address_$", - "typeString": "type(address)" - }, - "typeName": "address" - }, - "id": 930, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23968:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - "src": "23940:38:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 941, - "nodeType": "IfStatement", - "src": "23936:106:1", - "trueBody": { - "id": 940, - "nodeType": "Block", - "src": "23980:62:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 938, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 932, - "name": "_tokenApprovals", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 411, - "src": "23994:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - } - }, - "id": 934, - "indexExpression": { - "argumentTypes": null, - "id": 933, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 922, - "src": "24010:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "23994:24:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "30", - "id": 936, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "24029:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - } - ], - "id": 935, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "24021:7:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_address_$", - "typeString": "type(address)" - }, - "typeName": "address" - }, - "id": 937, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - 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"nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28769:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1125, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28776:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1123, - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "28736:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1126, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28736:48:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1127, - "nodeType": "ExpressionStatement", - "src": "28736:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1132, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1128, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "28903:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1130, - "indexExpression": { - "argumentTypes": null, - "id": 1129, - "name": "tokenId", - 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"src": "28647:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1113, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28662:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1112, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28662:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28646:32:1" - }, - "returnParameters": { - "id": 1115, - "nodeType": "ParameterList", - "parameters": [], - "src": "28688:0:1" - }, - "scope": 1302, - "src": "28632:364:1", - "stateMutability": "nonpayable", - "superFunction": 811, - "visibility": "internal" - 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"typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "29224:15:1" - }, - "returnParameters": { - "id": 1146, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1145, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 1152, - "src": "29263:17:1", - "stateVariable": false, - "storageLocation": "storage", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - }, - "typeName": { - "baseType": { - "id": 1143, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "29263:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1144, - "length": null, - "nodeType": "ArrayTypeName", - "src": "29263:9:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "29262:19:1" - }, - "scope": 1302, - "src": "29201:124:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 1175, - "nodeType": "Block", - "src": "29693:109:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 1166, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1159, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "29703:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1161, - "indexExpression": { - "argumentTypes": null, - "id": 1160, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1156, - "src": "29721:7:1", - 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"typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1156, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1176, - "src": "29668:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1155, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "29668:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "29655:29:1" - }, - "returnParameters": { - "id": 1158, - "nodeType": "ParameterList", - "parameters": [], - "src": "29693:0:1" - }, - "scope": 1302, - "src": "29619:183:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1194, - "nodeType": "Block", - "src": "30063:95:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 1186, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1181, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "30073:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1183, - "indexExpression": { - "argumentTypes": null, - "id": 1182, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1178, - "src": "30089:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "30073:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1184, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30100:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1185, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30100:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "30073:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1187, - "nodeType": "ExpressionStatement", - "src": "30073:44:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1191, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1178, - "src": "30143:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1188, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30127:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1190, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "push", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30127:15:1", - "typeDescriptions": { - "typeIdentifier": "t_function_arraypush_nonpayable$_t_uint256_$returns$_t_uint256_$", - "typeString": "function (uint256) returns (uint256)" - } - }, - "id": 1192, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "30127:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1193, - "nodeType": "ExpressionStatement", - "src": "30127:24:1" - } - ] - }, - "documentation": "@dev Private function to add a token to this extension's token tracking data structures.\n@param tokenId uint256 ID of the token to be added to the tokens list", - "id": 1195, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1179, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1178, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1195, - "src": "30038:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1177, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30038:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30037:17:1" - }, - "returnParameters": { - "id": 1180, - "nodeType": "ParameterList", - "parameters": [], - "src": "30063:0:1" - }, - "scope": 1302, - "src": "29997:161:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1251, - "nodeType": "Block", - "src": "30854:1047:1", - "statements": [ - { - "assignments": [ - 1203 - ], - "declarations": [ - { - "constant": false, - "id": 1203, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1251, - "src": "31035:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1202, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31035:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1211, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1209, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "31090:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1204, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31060:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1206, - "indexExpression": { - "argumentTypes": null, - "id": 1205, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31073:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31060:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1207, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31060:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1208, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "31060:29:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1210, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "31060:32:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31035:57:1" - }, - { - "assignments": [ - 1213 - ], - "declarations": [ - { - "constant": false, - "id": 1213, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1251, - "src": "31102:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1212, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31102:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1217, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1214, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31123:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1216, - "indexExpression": { - "argumentTypes": null, - "id": 1215, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1199, - "src": "31141:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31123:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31102:47:1" - }, - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "id": 1220, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 1218, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31253:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "id": 1219, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31267:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31253:28:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 1244, - "nodeType": "IfStatement", - "src": "31249:323:1", - "trueBody": { - "id": 1243, - "nodeType": "Block", - "src": "31283:289:1", - "statements": [ - { - "assignments": [ - 1222 - ], - "declarations": [ - { - "constant": false, - "id": 1222, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1243, - "src": "31297:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1221, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31297:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1228, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1223, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31319:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1225, - "indexExpression": { - "argumentTypes": null, - "id": 1224, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31332:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1227, - "indexExpression": { - "argumentTypes": null, - "id": 1226, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31338:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:34:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - 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See the corresponding\n[EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\nto learn more about how these ids are created.\n * This function call must use less than 30 000 gas.", - "id": 22, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "supportsInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 18, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 17, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 22, - "src": "766:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 16, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "766:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "765:20:1" - }, - "returnParameters": { - 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"typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 47, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "1257:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1207:64:1" - }, - "src": "1187:85:1" - }, - { - "body": null, - "documentation": "@dev Returns the number of NFTs in `owner`'s account.", - "id": 57, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "balanceOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 53, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 52, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 57, - "src": "1374:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 51, - "name": "address", - "nodeType": "ElementaryTypeName", - 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"documentation": "@dev Returns the owner of the NFT specified by `tokenId`.", - "id": 64, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "ownerOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 60, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 59, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1531:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 58, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1531:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1530:17:1" - }, - "returnParameters": { - "id": 63, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 62, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1569:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 61, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1569:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1568:15:1" - }, - "scope": 124, - "src": "1514:70:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * \n * Requirements:\n- `from`, `to` cannot be zero.\n- `tokenId` must be owned by `from`.\n- If the caller is not `from`, it must be have been allowed to move this\nNFT by either `approve` or `setApproveForAll`.", - "id": 73, - "implemented": false, - "kind": "function", - 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"superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * Requirements:\n- If the caller is not `from`, it must be approved to move this NFT by\neither `approve` or `setApproveForAll`.", - "id": 82, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 80, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 75, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2339:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 74, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2339:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 77, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2353:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 76, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2353:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 79, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2365:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 78, - "name": "uint256", - "nodeType": "ElementaryTypeName", - 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}, - { - "body": null, - "documentation": null, - "id": 96, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "getApproved", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 92, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 91, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2473:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 90, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2473:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2472:17:1" - }, - "returnParameters": { - "id": 95, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 94, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2511:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 93, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2511:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2510:18:1" - }, - "scope": 124, - "src": "2452:77:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 103, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "setApprovalForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 101, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 98, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2562:16:1", - 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"nodeType": "ParameterList", - "parameters": [], - "src": "2602:0:1" - }, - "scope": 124, - "src": "2535:68:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 112, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "isApprovedForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 108, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 105, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2634:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 104, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2634:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - 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"name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2688:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2687:6:1" - }, - "scope": 124, - "src": "2608:86:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 123, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 121, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 114, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2727:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 113, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2727:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 116, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2741:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 115, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2741:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 118, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2753:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 117, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2753:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 120, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2770:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 119, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "2770:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2726:62:1" - }, - "returnParameters": { - "id": 122, - "nodeType": "ParameterList", - "parameters": [], - "src": "2795:0:1" - }, - "scope": 124, - "src": "2701:95:1", - "stateMutability": "nonpayable", - 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This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. 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"names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - 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Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - }, - "returnParameters": { - "id": 370, - "nodeType": "ParameterList", - "parameters": [], - "src": "11598:0:1" - }, - "scope": 386, - "src": "11541:190:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "10321:1412:1" - }, - { - "id": 387, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "11793:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 388, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "11968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 389, - "nodeType": "InheritanceSpecifier", - "src": "11968:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 390, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "11976:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 391, - "nodeType": "InheritanceSpecifier", - "src": "11976:7:1" - } - ], - "contractDependencies": [ - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 944, - "linearizedBaseContracts": [ - 944, - 124, - 386, - 23 - ], - "name": "ERC721", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 394, - "libraryName": { - "contractScope": null, - "id": 392, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "11996:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "11990:27:1", - "typeName": { - "id": 393, - "name": "uint256", - 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"typeString": "library Counters" - } - }, - "nodeType": "UsingForDirective", - "src": "12053:36:1", - "typeName": { - "contractScope": null, - "id": 399, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12072:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - { - "constant": true, - "id": 403, - "name": "_ERC721_RECEIVED", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12267:53:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 401, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "12267:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783135306237613032", - "id": 402, - "isConstant": false, - 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"typeIdentifier": "t_mapping$_t_address_$_t_struct$_Counter_$296_storage_$", - "typeString": "mapping(address => struct Counters.Counter)" - }, - "valueType": { - "contractScope": null, - "id": 413, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12599:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 421, - "name": "_operatorApprovals", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12697:73:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", - "typeString": "mapping(address => mapping(address => bool))" - }, - "typeName": { - "id": 420, - "keyType": { - "id": 416, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12706:7:1", - 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"nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "27799:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1077, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27799:47:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1078, - "nodeType": "ExpressionStatement", - "src": "27799:47:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1080, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1061, - "src": "27885:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1081, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1063, - "src": "27889:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1079, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "27857:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1082, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27857:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1083, - "nodeType": "ExpressionStatement", - "src": "27857:40:1" - } - ] - }, - "documentation": "@dev Internal function to transfer ownership of a given token ID to another address.\nAs opposed to transferFrom, this imposes no restrictions on msg.sender.\n@param from current owner of the token\n@param to address to receive the ownership of the given token ID\n@param tokenId uint256 ID of the token to be transferred", - "id": 1085, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1064, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1059, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27688:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1058, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27688:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1061, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27702:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1060, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27702:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1063, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27714:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1062, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "27714:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "27687:43:1" - }, - "returnParameters": { - "id": 1065, - "nodeType": "ParameterList", - "parameters": [], - "src": "27740:0:1" - }, - "scope": 1302, - "src": "27665:239:1", - "stateMutability": "nonpayable", - "superFunction": 880, - "visibility": "internal" - }, - { - "body": { - "id": 1108, - "nodeType": "Block", - "src": "28214:143:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1095, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28236:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1096, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28240:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1092, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28224:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1094, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_mint", - "nodeType": "MemberAccess", - "referencedDeclaration": 768, - "src": "28224:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1097, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28224:24:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1098, - "nodeType": "ExpressionStatement", - "src": "28224:24:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1100, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28287:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1101, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28291:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1099, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "28259:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1102, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28259:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1103, - "nodeType": "ExpressionStatement", - "src": "28259:40:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1105, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28342:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1104, - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1195, - "src": "28310:31:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1106, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28310:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1107, - "nodeType": "ExpressionStatement", - "src": "28310:40:1" - } - ] - }, - "documentation": "@dev Internal function to mint a new token.\nReverts if the given token ID already exists.\n@param to address the beneficiary that will own the minted token\n@param tokenId uint256 ID of the token to be minted", - "id": 1109, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_mint", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1090, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1087, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28176:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1086, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28176:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1089, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28188:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1088, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28188:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28175:29:1" - }, - "returnParameters": { - "id": 1091, - "nodeType": "ParameterList", - "parameters": [], - "src": "28214:0:1" - }, - "scope": 1302, - "src": "28161:196:1", - "stateMutability": "nonpayable", - "superFunction": 768, - "visibility": "internal" - }, - { - "body": { - "id": 1138, - "nodeType": "Block", - "src": "28688:308:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1119, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28710:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1120, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28717:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1116, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28698:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1118, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_burn", - "nodeType": "MemberAccess", - "referencedDeclaration": 811, - "src": "28698:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1121, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28698:27:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1122, - "nodeType": "ExpressionStatement", - "src": "28698:27:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1124, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28769:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1125, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28776:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1123, - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "28736:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1126, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28736:48:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1127, - "nodeType": "ExpressionStatement", - "src": "28736:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1132, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1128, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "28903:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1130, - "indexExpression": { - "argumentTypes": null, - "id": 1129, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28921:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "28903:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1131, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "28932:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "28903:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1133, - "nodeType": "ExpressionStatement", - "src": "28903:30:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1135, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28981:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1134, - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1301, - "src": "28944:36:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1136, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28944:45:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1137, - "nodeType": "ExpressionStatement", - "src": "28944:45:1" - } - ] - }, - "documentation": "@dev Internal function to burn a specific token.\nReverts if the token does not exist.\nDeprecated, use _burn(uint256) instead.\n@param owner owner of the token to burn\n@param tokenId uint256 ID of the token being burned", - "id": 1139, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_burn", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1114, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1111, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28647:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1110, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28647:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1113, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28662:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1112, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28662:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28646:32:1" - }, - "returnParameters": { - "id": 1115, - "nodeType": "ParameterList", - "parameters": [], - "src": "28688:0:1" - }, - "scope": 1302, - "src": "28632:364:1", - "stateMutability": "nonpayable", - "superFunction": 811, - "visibility": "internal" - 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"typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "32485:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1259, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32463:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1260, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "32463:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1261, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1265, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32497:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1270, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1267, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "32518:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1269, - "indexExpression": { - "argumentTypes": null, - "id": 1268, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "32534:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32518:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32497:45:1" - }, - { - "assignments": [ - 1272 - ], - "declarations": [ - { - "constant": false, - "id": 1272, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32864:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1271, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32864:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1276, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1273, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32886:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1275, - "indexExpression": { - "argumentTypes": null, - "id": 1274, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1258, - "src": "32897:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32886:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32864:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1281, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1277, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32923:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1279, - "indexExpression": { - "argumentTypes": null, - "id": 1278, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "32934:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "32923:22:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1280, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "32948:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "32923:36:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1282, - "nodeType": "ExpressionStatement", - "src": "32923:36:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1287, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1283, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33027:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1285, - "indexExpression": { - "argumentTypes": null, - "id": 1284, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "33043:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33027:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1286, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "33058:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "33027:41:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1288, - "nodeType": "ExpressionStatement", - "src": "33027:41:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1292, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "33189:19:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1289, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "33189:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1291, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "33189:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1293, - "nodeType": "ExpressionStatement", - "src": "33189:19:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1298, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1294, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33218:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1296, - "indexExpression": { - "argumentTypes": null, - "id": 1295, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "33234:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33218:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1297, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "33245:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "33218:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1299, - "nodeType": "ExpressionStatement", - "src": "33218:28:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's token tracking data structures.\nThis has O(1) time complexity, but alters the order of the _allTokens array.\n@param tokenId uint256 ID of the token to be removed from the tokens list", - "id": 1301, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1255, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1254, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1301, - "src": "32235:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1253, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32235:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "32234:17:1" - }, - "returnParameters": { - "id": 1256, - "nodeType": "ParameterList", - "parameters": [], - "src": "32260:0:1" - }, - "scope": 1302, - "src": "32189:1064:1", - "stateMutability": "nonpayable", - 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May return an empty string.\n@param tokenId uint256 ID of the token to query", - "id": 1396, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "tokenURI", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1380, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1379, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1396, - "src": "35304:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1378, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "35304:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "35303:17:1" - }, - "returnParameters": { - "id": 1383, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1382, - "name": "", - 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"src": "36846:16:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1454, - "name": "ERC721Metadata", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 1448, - "src": "36864:14:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721Metadata_$1448", - "typeString": "contract ERC721Metadata" - } - }, - "id": 1455, - "nodeType": "InheritanceSpecifier", - "src": "36864:14:1" - } - ], - "contractDependencies": [ - 944, - 969, - 23, - 124, - 386, - 1302, - 1323, - 1448 - ], - "contractKind": "contract", - "documentation": "@title Full ERC721 Token\nThis implementation includes all the required and some optional functionality of the ERC721 standard\nMoreover, it includes approve all functionality using operator terminology\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 1468, - "linearizedBaseContracts": [ - 1468, - 1448, - 1323, - 1302, - 969, - 944, - 124, - 386, - 23 - ], - "name": "ERC721Full", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": { - "id": 1466, - "nodeType": "Block", - "src": "36976:64:1", - "statements": [] - }, - "documentation": null, - "id": 1467, - "implemented": true, - "kind": "constructor", - "modifiers": [ - { - "arguments": [ - { - "argumentTypes": null, - "id": 1462, - "name": "name", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1457, - "src": "36962:4:1", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string memory" - } - }, - { - "argumentTypes": null, - "id": 1463, - "name": "symbol", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1459, - "src": "36968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string memory" - } - } - ], - "id": 1464, - "modifierName": { - "argumentTypes": null, - "id": 1461, - "name": "ERC721Metadata", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1448, - "src": "36947:14:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_contract$_ERC721Metadata_$1448_$", - "typeString": "type(contract ERC721Metadata)" - } - }, - "nodeType": "ModifierInvocation", - "src": "36947:28:1" - } - ], - "name": "", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1460, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1457, - "name": "name", - "nodeType": "VariableDeclaration", - "scope": 1467, - "src": "36898:18:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1456, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "36898:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1459, - "name": "symbol", - "nodeType": "VariableDeclaration", - "scope": 1467, - "src": "36918:20:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1458, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "36918:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "36897:42:1" - }, - "returnParameters": { - "id": 1465, - "nodeType": "ParameterList", - "parameters": [], - "src": "36976:0:1" - }, - "scope": 1468, - "src": "36885:155:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "36815:227:1" - } - ], - "src": "61:36982:1" - }, - "compiler": { - "name": "solc", - "version": "0.5.0+commit.1d4f565a.Emscripten.clang" - }, - "networks": {}, - "schemaVersion": "3.0.2", - "updatedAt": "2019-09-05T15:01:08.603Z", - "devdoc": { - "details": "see https://eips.ethereum.org/EIPS/eip-721", - "methods": { - "approve(address,uint256)": { - "details": "Approves another address to transfer the given token ID The zero address indicates there is no approved address. There can only be one approved address per token at a given time. Can only be called by the token owner or an approved operator.", - "params": { - "to": "address to be approved for the given token ID", - "tokenId": "uint256 ID of the token to be approved" - } - }, - "balanceOf(address)": { - "details": "Gets the balance of the specified address.", - "params": { - "owner": "address to query the balance of" - }, - "return": "uint256 representing the amount owned by the passed address" - }, - "getApproved(uint256)": { - "details": "Gets the approved address for a token ID, or zero if no address set Reverts if the token ID does not exist.", - "params": { - "tokenId": "uint256 ID of the token to query the approval of" - }, - "return": "address currently approved for the given token ID" - }, - "isApprovedForAll(address,address)": { - "details": "Tells whether an operator is approved by a given owner.", - "params": { - "operator": "operator address which you want to query the approval of", - "owner": "owner address which you want to query the approval of" - }, - "return": "bool whether the given operator is approved by the given owner" - }, - "ownerOf(uint256)": { - "details": "Gets the owner of the specified token ID.", - "params": { - "tokenId": "uint256 ID of the token to query the owner of" - }, - "return": "address currently marked as the owner of the given token ID" - }, - "safeTransferFrom(address,address,uint256)": { - "details": "Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise, the transfer is reverted. Requires the msg.sender to be the owner, approved, or operator", - "params": { - "from": "current owner of the token", - "to": "address to receive the ownership of the given token ID", - "tokenId": "uint256 ID of the token to be transferred" - } - }, - "safeTransferFrom(address,address,uint256,bytes)": { - "details": "Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise, the transfer is reverted. Requires the msg.sender to be the owner, approved, or operator", - "params": { - "_data": "bytes data to send along with a safe transfer check", - "from": "current owner of the token", - "to": "address to receive the ownership of the given token ID", - "tokenId": "uint256 ID of the token to be transferred" - } - }, - "setApprovalForAll(address,bool)": { - "details": "Sets or unsets the approval of a given operator An operator is allowed to transfer all tokens of the sender on their behalf.", - "params": { - "approved": "representing the status of the approval to be set", - "to": "operator address to set the approval" - } - }, - "supportsInterface(bytes4)": { - "details": "See `IERC165.supportsInterface`. * Time complexity O(1), guaranteed to always use less than 30 000 gas." - }, - "transferFrom(address,address,uint256)": { - "details": "Transfers the ownership of a given token ID to another address. Usage of this method is discouraged, use `safeTransferFrom` whenever possible. Requires the msg.sender to be the owner, approved, or operator.", - "params": { - "from": "current owner of the token", - "to": "address to receive the ownership of the given token ID", - "tokenId": "uint256 ID of the token to be transferred" - } - } - }, - "title": "ERC721 Non-Fungible Token Standard basic implementation" - }, - "userdoc": { - "methods": {} - } -} \ No newline at end of file diff --git a/src/abis/ERC721Enumerable.json b/src/abis/ERC721Enumerable.json deleted file mode 100644 index ead537f..0000000 --- a/src/abis/ERC721Enumerable.json +++ /dev/null @@ -1,37877 +0,0 @@ -{ - "contractName": "ERC721Enumerable", - "abi": [ - { - "constant": true, - "inputs": [ - { - "name": "interfaceId", - "type": "bytes4" - } - ], - "name": "supportsInterface", - "outputs": [ - { - "name": "", - "type": "bool" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "getApproved", - "outputs": [ - { - "name": "", - "type": "address" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "approve", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "from", - "type": "address" - }, - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "transferFrom", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "from", - "type": "address" - }, - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "safeTransferFrom", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "ownerOf", - "outputs": [ - { - "name": "", - "type": "address" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "owner", - "type": "address" - } - ], - "name": "balanceOf", - "outputs": [ - { - "name": "", - "type": "uint256" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "to", - "type": "address" - }, - { - "name": "approved", - "type": "bool" - } - ], - "name": "setApprovalForAll", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "from", - "type": "address" - }, - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - }, - { - "name": "_data", - "type": "bytes" - } - ], - "name": "safeTransferFrom", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "owner", - "type": "address" - }, - { - "name": "operator", - "type": "address" - } - ], - "name": "isApprovedForAll", - "outputs": [ - { - "name": "", - "type": "bool" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "inputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "constructor" - }, - { - "anonymous": false, - "inputs": [ - { - "indexed": true, - "name": "from", - "type": "address" - }, - { - "indexed": true, - "name": "to", - "type": "address" - }, - { - "indexed": true, - "name": "tokenId", - "type": "uint256" - } - ], - "name": "Transfer", - "type": "event" - }, - { - "anonymous": false, - "inputs": [ - { - "indexed": true, - "name": "owner", - "type": "address" - }, - { - "indexed": true, - "name": "approved", - "type": "address" - }, - { - "indexed": true, - "name": "tokenId", - "type": "uint256" - } - ], - "name": "Approval", - "type": "event" - }, - { - "anonymous": false, - "inputs": [ - { - "indexed": true, - "name": "owner", - "type": "address" - }, - { - "indexed": true, - "name": "operator", - "type": "address" - }, - { - "indexed": false, - "name": "approved", - "type": "bool" - } - ], - "name": "ApprovalForAll", - "type": "event" - }, - { - "constant": true, - "inputs": [ - { - "name": "owner", - "type": "address" - }, - { - "name": "index", - "type": "uint256" - } - ], - "name": "tokenOfOwnerByIndex", - "outputs": [ - { - "name": "", - "type": "uint256" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [], - "name": "totalSupply", - "outputs": [ - { - "name": "", - "type": "uint256" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "index", - "type": "uint256" - } - ], - "name": "tokenByIndex", - "outputs": [ - { - "name": "", - "type": "uint256" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - } - ], - "bytecode": 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- "source": "\n// File: @openzeppelin/contracts/introspection/IERC165.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * [EIP](https://eips.ethereum.org/EIPS/eip-165).\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others (`ERC165Checker`).\n *\n * For an implementation, see `ERC165`.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ncontract IERC721 is IERC165 {\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of NFTs in `owner`'s account.\n */\n function balanceOf(address owner) public view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the NFT specified by `tokenId`.\n */\n function ownerOf(uint256 tokenId) public view returns (address owner);\n\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * \n *\n * Requirements:\n * - `from`, `to` cannot be zero.\n * - `tokenId` must be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this\n * NFT by either `approve` or `setApproveForAll`.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public;\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * Requirements:\n * - If the caller is not `from`, it must be approved to move this NFT by\n * either `approve` or `setApproveForAll`.\n */\n function transferFrom(address from, address to, uint256 tokenId) public;\n function approve(address to, uint256 tokenId) public;\n function getApproved(uint256 tokenId) public view returns (address operator);\n\n function setApprovalForAll(address operator, bool _approved) public;\n function isApprovedForAll(address owner, address operator) public view returns (bool);\n\n\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public;\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ncontract IERC721Receiver {\n /**\n * @notice Handle the receipt of an NFT\n * @dev The ERC721 smart contract calls this function on the recipient\n * after a `safeTransfer`. This function MUST return the function selector,\n * otherwise the caller will revert the transaction. The selector to be\n * returned can be obtained as `this.onERC721Received.selector`. This\n * function MAY throw to revert and reject the transfer.\n * Note: the ERC721 contract address is always the message sender.\n * @param operator The address which called `safeTransferFrom` function\n * @param from The address which previously owned the token\n * @param tokenId The NFT identifier which is being transferred\n * @param data Additional data with no specified format\n * @return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n */\n function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data)\n public returns (bytes4);\n}\n\n// File: @openzeppelin/contracts/math/SafeMath.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\n * checks.\n *\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\n * in bugs, because programmers usually assume that an overflow raises an\n * error, which is the standard behavior in high level programming languages.\n * `SafeMath` restores this intuition by reverting the transaction when an\n * operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeMath {\n /**\n * @dev Returns the addition of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `+` operator.\n *\n * Requirements:\n * - Addition cannot overflow.\n */\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting on\n * overflow (when the result is negative).\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n * - Subtraction cannot overflow.\n */\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b <= a, \"SafeMath: subtraction overflow\");\n uint256 c = a - b;\n\n return c;\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `*` operator.\n *\n * Requirements:\n * - Multiplication cannot overflow.\n */\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers. Reverts on\n * division by zero. The result is rounded towards zero.\n *\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n * uses an invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n // Solidity only automatically asserts when dividing by 0\n require(b > 0, \"SafeMath: division by zero\");\n uint256 c = a / b;\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n return c;\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * Reverts when dividing by zero.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b != 0, \"SafeMath: modulo by zero\");\n return a % b;\n }\n}\n\n// File: @openzeppelin/contracts/utils/Address.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Collection of functions related to the address type,\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * This test is non-exhaustive, and there may be false-negatives: during the\n * execution of a contract's constructor, its address will be reported as\n * not containing a contract.\n *\n * > It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies in extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n}\n\n// File: @openzeppelin/contracts/drafts/Counters.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title Counters\n * @author Matt Condon (@shrugs)\n * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number\n * of elements in a mapping, issuing ERC721 ids, or counting request ids.\n *\n * Include with `using Counters for Counters.Counter;`\n * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath\n * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never\n * directly accessed.\n */\nlibrary Counters {\n using SafeMath for uint256;\n\n struct Counter {\n // This variable should never be directly accessed by users of the library: interactions must be restricted to\n // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add\n // this feature: see https://github.com/ethereum/solidity/issues/4637\n uint256 _value; // default: 0\n }\n\n function current(Counter storage counter) internal view returns (uint256) {\n return counter._value;\n }\n\n function increment(Counter storage counter) internal {\n counter._value += 1;\n }\n\n function decrement(Counter storage counter) internal {\n counter._value = counter._value.sub(1);\n }\n}\n\n// File: @openzeppelin/contracts/introspection/ERC165.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Implementation of the `IERC165` interface.\n *\n * Contracts may inherit from this and call `_registerInterface` to declare\n * their support of an interface.\n */\ncontract ERC165 is IERC165 {\n /*\n * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7\n */\n bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;\n\n /**\n * @dev Mapping of interface ids to whether or not it's supported.\n */\n mapping(bytes4 => bool) private _supportedInterfaces;\n\n constructor () internal {\n // Derived contracts need only register support for their own interfaces,\n // we register support for ERC165 itself here\n _registerInterface(_INTERFACE_ID_ERC165);\n }\n\n /**\n * @dev See `IERC165.supportsInterface`.\n *\n * Time complexity O(1), guaranteed to always use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool) {\n return _supportedInterfaces[interfaceId];\n }\n\n /**\n * @dev Registers the contract as an implementer of the interface defined by\n * `interfaceId`. Support of the actual ERC165 interface is automatic and\n * registering its interface id is not required.\n *\n * See `IERC165.supportsInterface`.\n *\n * Requirements:\n *\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).\n */\n function _registerInterface(bytes4 interfaceId) internal {\n require(interfaceId != 0xffffffff, \"ERC165: invalid interface id\");\n _supportedInterfaces[interfaceId] = true;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n\n\n\n/**\n * @title ERC721 Non-Fungible Token Standard basic implementation\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721 is ERC165, IERC721 {\n using SafeMath for uint256;\n using Address for address;\n using Counters for Counters.Counter;\n\n // Equals to `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`\n bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;\n\n // Mapping from token ID to owner\n mapping (uint256 => address) private _tokenOwner;\n\n // Mapping from token ID to approved address\n mapping (uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to number of owned token\n mapping (address => Counters.Counter) private _ownedTokensCount;\n\n // Mapping from owner to operator approvals\n mapping (address => mapping (address => bool)) private _operatorApprovals;\n\n /*\n * bytes4(keccak256('balanceOf(address)')) == 0x70a08231\n * bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e\n * bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3\n * bytes4(keccak256('getApproved(uint256)')) == 0x081812fc\n * bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465\n * bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c\n * bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd\n * bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e\n * bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde\n *\n * => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^\n * 0xa22cb465 ^ 0xe985e9c ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd\n */\n bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;\n\n constructor () public {\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721);\n }\n\n /**\n * @dev Gets the balance of the specified address.\n * @param owner address to query the balance of\n * @return uint256 representing the amount owned by the passed address\n */\n function balanceOf(address owner) public view returns (uint256) {\n require(owner != address(0), \"ERC721: balance query for the zero address\");\n\n return _ownedTokensCount[owner].current();\n }\n\n /**\n * @dev Gets the owner of the specified token ID.\n * @param tokenId uint256 ID of the token to query the owner of\n * @return address currently marked as the owner of the given token ID\n */\n function ownerOf(uint256 tokenId) public view returns (address) {\n address owner = _tokenOwner[tokenId];\n require(owner != address(0), \"ERC721: owner query for nonexistent token\");\n\n return owner;\n }\n\n /**\n * @dev Approves another address to transfer the given token ID\n * The zero address indicates there is no approved address.\n * There can only be one approved address per token at a given time.\n * Can only be called by the token owner or an approved operator.\n * @param to address to be approved for the given token ID\n * @param tokenId uint256 ID of the token to be approved\n */\n function approve(address to, uint256 tokenId) public {\n address owner = ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(msg.sender == owner || isApprovedForAll(owner, msg.sender),\n \"ERC721: approve caller is not owner nor approved for all\"\n );\n\n _tokenApprovals[tokenId] = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Gets the approved address for a token ID, or zero if no address set\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to query the approval of\n * @return address currently approved for the given token ID\n */\n function getApproved(uint256 tokenId) public view returns (address) {\n require(_exists(tokenId), \"ERC721: approved query for nonexistent token\");\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev Sets or unsets the approval of a given operator\n * An operator is allowed to transfer all tokens of the sender on their behalf.\n * @param to operator address to set the approval\n * @param approved representing the status of the approval to be set\n */\n function setApprovalForAll(address to, bool approved) public {\n require(to != msg.sender, \"ERC721: approve to caller\");\n\n _operatorApprovals[msg.sender][to] = approved;\n emit ApprovalForAll(msg.sender, to, approved);\n }\n\n /**\n * @dev Tells whether an operator is approved by a given owner.\n * @param owner owner address which you want to query the approval of\n * @param operator operator address which you want to query the approval of\n * @return bool whether the given operator is approved by the given owner\n */\n function isApprovedForAll(address owner, address operator) public view returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev Transfers the ownership of a given token ID to another address.\n * Usage of this method is discouraged, use `safeTransferFrom` whenever possible.\n * Requires the msg.sender to be the owner, approved, or operator.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function transferFrom(address from, address to, uint256 tokenId) public {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(msg.sender, tokenId), \"ERC721: transfer caller is not owner nor approved\");\n\n _transferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes data to send along with a safe transfer check\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public {\n transferFrom(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, _data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns whether the specified token exists.\n * @param tokenId uint256 ID of the token to query the existence of\n * @return bool whether the token exists\n */\n function _exists(uint256 tokenId) internal view returns (bool) {\n address owner = _tokenOwner[tokenId];\n return owner != address(0);\n }\n\n /**\n * @dev Returns whether the given spender can transfer a given token ID.\n * @param spender address of the spender to query\n * @param tokenId uint256 ID of the token to be transferred\n * @return bool whether the msg.sender is approved for the given token ID,\n * is an operator of the owner, or is the owner of the token\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view returns (bool) {\n require(_exists(tokenId), \"ERC721: operator query for nonexistent token\");\n address owner = ownerOf(tokenId);\n return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to The address that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _tokenOwner[tokenId] = to;\n _ownedTokensCount[to].increment();\n\n emit Transfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n require(ownerOf(tokenId) == owner, \"ERC721: burn of token that is not own\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[owner].decrement();\n _tokenOwner[tokenId] = address(0);\n\n emit Transfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(uint256 tokenId) internal {\n _burn(ownerOf(tokenId), tokenId);\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n require(ownerOf(tokenId) == from, \"ERC721: transfer of token that is not own\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[from].decrement();\n _ownedTokensCount[to].increment();\n\n _tokenOwner[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n }\n\n /**\n * @dev Internal function to invoke `onERC721Received` on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * This function is deprecated.\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data)\n internal returns (bool)\n {\n if (!to.isContract()) {\n return true;\n }\n\n bytes4 retval = IERC721Receiver(to).onERC721Received(msg.sender, from, tokenId, _data);\n return (retval == _ERC721_RECEIVED);\n }\n\n /**\n * @dev Private function to clear current approval of a given token ID.\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _clearApproval(uint256 tokenId) private {\n if (_tokenApprovals[tokenId] != address(0)) {\n _tokenApprovals[tokenId] = address(0);\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Enumerable is IERC721 {\n function totalSupply() public view returns (uint256);\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256 tokenId);\n\n function tokenByIndex(uint256 index) public view returns (uint256);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title ERC-721 Non-Fungible Token with optional enumeration extension logic\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Enumerable is ERC165, ERC721, IERC721Enumerable {\n // Mapping from owner to list of owned token IDs\n mapping(address => uint256[]) private _ownedTokens;\n\n // Mapping from token ID to index of the owner tokens list\n mapping(uint256 => uint256) private _ownedTokensIndex;\n\n // Array with all token ids, used for enumeration\n uint256[] private _allTokens;\n\n // Mapping from token id to position in the allTokens array\n mapping(uint256 => uint256) private _allTokensIndex;\n\n /*\n * bytes4(keccak256('totalSupply()')) == 0x18160ddd\n * bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59\n * bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7\n *\n * => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63\n */\n bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;\n\n /**\n * @dev Constructor function.\n */\n constructor () public {\n // register the supported interface to conform to ERC721Enumerable via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);\n }\n\n /**\n * @dev Gets the token ID at a given index of the tokens list of the requested owner.\n * @param owner address owning the tokens list to be accessed\n * @param index uint256 representing the index to be accessed of the requested tokens list\n * @return uint256 token ID at the given index of the tokens list owned by the requested address\n */\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) {\n require(index < balanceOf(owner), \"ERC721Enumerable: owner index out of bounds\");\n return _ownedTokens[owner][index];\n }\n\n /**\n * @dev Gets the total amount of tokens stored by the contract.\n * @return uint256 representing the total amount of tokens\n */\n function totalSupply() public view returns (uint256) {\n return _allTokens.length;\n }\n\n /**\n * @dev Gets the token ID at a given index of all the tokens in this contract\n * Reverts if the index is greater or equal to the total number of tokens.\n * @param index uint256 representing the index to be accessed of the tokens list\n * @return uint256 token ID at the given index of the tokens list\n */\n function tokenByIndex(uint256 index) public view returns (uint256) {\n require(index < totalSupply(), \"ERC721Enumerable: global index out of bounds\");\n return _allTokens[index];\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n super._transferFrom(from, to, tokenId);\n\n _removeTokenFromOwnerEnumeration(from, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to address the beneficiary that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n super._mint(to, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n\n _addTokenToAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n _removeTokenFromOwnerEnumeration(owner, tokenId);\n // Since tokenId will be deleted, we can clear its slot in _ownedTokensIndex to trigger a gas refund\n _ownedTokensIndex[tokenId] = 0;\n\n _removeTokenFromAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Gets the list of token IDs of the requested owner.\n * @param owner address owning the tokens\n * @return uint256[] List of token IDs owned by the requested address\n */\n function _tokensOfOwner(address owner) internal view returns (uint256[] storage) {\n return _ownedTokens[owner];\n }\n\n /**\n * @dev Private function to add a token to this extension's ownership-tracking data structures.\n * @param to address representing the new owner of the given token ID\n * @param tokenId uint256 ID of the token to be added to the tokens list of the given address\n */\n function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {\n _ownedTokensIndex[tokenId] = _ownedTokens[to].length;\n _ownedTokens[to].push(tokenId);\n }\n\n /**\n * @dev Private function to add a token to this extension's token tracking data structures.\n * @param tokenId uint256 ID of the token to be added to the tokens list\n */\n function _addTokenToAllTokensEnumeration(uint256 tokenId) private {\n _allTokensIndex[tokenId] = _allTokens.length;\n _allTokens.push(tokenId);\n }\n\n /**\n * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\n * while the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\n * gas optimizations e.g. when performing a transfer operation (avoiding double writes).\n * This has O(1) time complexity, but alters the order of the _ownedTokens array.\n * @param from address representing the previous owner of the given token ID\n * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address\n */\n function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {\n // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _ownedTokens[from].length.sub(1);\n uint256 tokenIndex = _ownedTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary\n if (tokenIndex != lastTokenIndex) {\n uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];\n\n _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n }\n\n // This also deletes the contents at the last position of the array\n _ownedTokens[from].length--;\n\n // Note that _ownedTokensIndex[tokenId] hasn't been cleared: it still points to the old slot (now occupied by\n // lastTokenId, or just over the end of the array if the token was the last one).\n }\n\n /**\n * @dev Private function to remove a token from this extension's token tracking data structures.\n * This has O(1) time complexity, but alters the order of the _allTokens array.\n * @param tokenId uint256 ID of the token to be removed from the tokens list\n */\n function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {\n // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _allTokens.length.sub(1);\n uint256 tokenIndex = _allTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so\n // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding\n // an 'if' statement (like in _removeTokenFromOwnerEnumeration)\n uint256 lastTokenId = _allTokens[lastTokenIndex];\n\n _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n\n // This also deletes the contents at the last position of the array\n _allTokens.length--;\n _allTokensIndex[tokenId] = 0;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Metadata is IERC721 {\n function name() external view returns (string memory);\n function symbol() external view returns (string memory);\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n\n\ncontract ERC721Metadata is ERC165, ERC721, IERC721Metadata {\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Optional mapping for token URIs\n mapping(uint256 => string) private _tokenURIs;\n\n /*\n * bytes4(keccak256('name()')) == 0x06fdde03\n * bytes4(keccak256('symbol()')) == 0x95d89b41\n * bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd\n *\n * => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f\n */\n bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;\n\n /**\n * @dev Constructor function\n */\n constructor (string memory name, string memory symbol) public {\n _name = name;\n _symbol = symbol;\n\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_METADATA);\n }\n\n /**\n * @dev Gets the token name.\n * @return string representing the token name\n */\n function name() external view returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Gets the token symbol.\n * @return string representing the token symbol\n */\n function symbol() external view returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns an URI for a given token ID.\n * Throws if the token ID does not exist. May return an empty string.\n * @param tokenId uint256 ID of the token to query\n */\n function tokenURI(uint256 tokenId) external view returns (string memory) {\n require(_exists(tokenId), \"ERC721Metadata: URI query for nonexistent token\");\n return _tokenURIs[tokenId];\n }\n\n /**\n * @dev Internal function to set the token URI for a given token.\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to set its URI\n * @param uri string URI to assign\n */\n function _setTokenURI(uint256 tokenId, string memory uri) internal {\n require(_exists(tokenId), \"ERC721Metadata: URI set of nonexistent token\");\n _tokenURIs[tokenId] = uri;\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned by the msg.sender\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n // Clear metadata (if any)\n if (bytes(_tokenURIs[tokenId]).length != 0) {\n delete _tokenURIs[tokenId];\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Full.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title Full ERC721 Token\n * This implementation includes all the required and some optional functionality of the ERC721 standard\n * Moreover, it includes approve all functionality using operator terminology\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Full is ERC721, ERC721Enumerable, ERC721Metadata {\n constructor (string memory name, string memory symbol) public ERC721Metadata(name, symbol) {\n // solhint-disable-previous-line no-empty-blocks\n }\n}\n", - "sourcePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "ast": { - "absolutePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "exportedSymbols": { - "Address": [ - 289 - ], - "Counters": [ - 336 - ], - "ERC165": [ - 386 - ], - "ERC721": [ - 944 - ], - "ERC721Enumerable": [ - 1302 - ], - "ERC721Full": [ - 1468 - ], - "ERC721Metadata": [ - 1448 - ], - "IERC165": [ - 23 - ], - "IERC721": [ - 124 - ], - "IERC721Enumerable": [ - 969 - ], - "IERC721Metadata": [ - 1323 - ], - "IERC721Receiver": [ - 139 - ], - "SafeMath": [ - 271 - ] - }, - "id": 1469, - "nodeType": "SourceUnit", - "nodes": [ - { - "id": 15, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "61:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "interface", - "documentation": "@dev Interface of the ERC165 standard, as defined in the\n[EIP](https://eips.ethereum.org/EIPS/eip-165).\n * Implementers can declare support of contract interfaces, which can then be\nqueried by others (`ERC165Checker`).\n * For an implementation, see `ERC165`.", - "fullyImplemented": false, - "id": 23, - "linearizedBaseContracts": [ - 23 - ], - "name": "IERC165", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@dev Returns true if this contract implements the interface defined by\n`interfaceId`. 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This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. This\nfunction MAY throw to revert and reject the transfer.\nNote: the ERC721 contract address is always the message sender.\n@param operator The address which called `safeTransferFrom` function\n@param from The address which previously owned the token\n@param tokenId The NFT identifier which is being transferred\n@param data Additional data with no specified format\n@return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`", - "id": 138, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "onERC721Received", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 134, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 127, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3960:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 126, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "3960:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 129, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3978:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 128, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "3978:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 131, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3992:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 130, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "3992:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 133, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "4009:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 132, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "4009:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "3959:68:1" - }, - "returnParameters": { - "id": 137, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 136, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "4048:6:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 135, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "4048:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "4047:8:1" - }, - "scope": 139, - "src": "3934:122:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "3045:1013:1" - }, - { - "id": 140, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "4112:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "library", - "documentation": "@dev Wrappers over Solidity's arithmetic operations with added overflow\nchecks.\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\nin bugs, because programmers usually assume that an overflow raises an\nerror, which is the standard behavior in high level programming languages.\n`SafeMath` restores this intuition by reverting the transaction when an\noperation overflows.\n * Using this library instead of the unchecked operations eliminates an entire\nclass of bugs, so it's recommended to use it always.", - "fullyImplemented": true, - "id": 271, - "linearizedBaseContracts": [ - 271 - ], - "name": "SafeMath", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": { - "id": 164, - "nodeType": "Block", - "src": "5013:109:1", - "statements": [ - { - "assignments": [ - 150 - ], - "declarations": [ - { - "constant": false, - "id": 150, - "name": "c", - "nodeType": "VariableDeclaration", - "scope": 164, - "src": "5023:9:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 149, - 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"names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - 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Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - 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"typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "29224:15:1" - }, - "returnParameters": { - "id": 1146, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1145, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 1152, - "src": "29263:17:1", - "stateVariable": false, - "storageLocation": "storage", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - }, - "typeName": { - "baseType": { - "id": 1143, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "29263:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1144, - "length": null, - "nodeType": "ArrayTypeName", - "src": "29263:9:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - } - }, - "value": null, - "visibility": "internal" - 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"src": "30073:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1184, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30100:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1185, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30100:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "30073:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1187, - "nodeType": "ExpressionStatement", - "src": "30073:44:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1191, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1178, - "src": "30143:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1188, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30127:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1190, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "push", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30127:15:1", - "typeDescriptions": { - "typeIdentifier": "t_function_arraypush_nonpayable$_t_uint256_$returns$_t_uint256_$", - "typeString": "function (uint256) returns (uint256)" - } - }, - "id": 1192, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "30127:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1193, - "nodeType": "ExpressionStatement", - "src": "30127:24:1" - } - ] - }, - "documentation": "@dev Private function to add a token to this extension's token tracking data structures.\n@param tokenId uint256 ID of the token to be added to the tokens list", - "id": 1195, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1179, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1178, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1195, - "src": "30038:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1177, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30038:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30037:17:1" - }, - "returnParameters": { - "id": 1180, - "nodeType": "ParameterList", - "parameters": [], - "src": "30063:0:1" - }, - "scope": 1302, - "src": "29997:161:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1251, - "nodeType": "Block", - "src": "30854:1047:1", - "statements": [ - { - "assignments": [ - 1203 - ], - "declarations": [ - { - "constant": false, - "id": 1203, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1251, - "src": "31035:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1202, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31035:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1211, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1209, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "31090:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1204, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31060:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1206, - "indexExpression": { - "argumentTypes": null, - "id": 1205, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31073:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31060:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1207, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31060:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1208, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "31060:29:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1210, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "31060:32:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31035:57:1" - }, - { - "assignments": [ - 1213 - ], - "declarations": [ - { - "constant": false, - "id": 1213, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1251, - "src": "31102:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1212, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31102:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1217, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1214, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31123:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1216, - "indexExpression": { - "argumentTypes": null, - "id": 1215, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1199, - "src": "31141:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31123:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31102:47:1" - }, - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "id": 1220, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 1218, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31253:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "id": 1219, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31267:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31253:28:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 1244, - "nodeType": "IfStatement", - "src": "31249:323:1", - "trueBody": { - "id": 1243, - "nodeType": "Block", - "src": "31283:289:1", - "statements": [ - { - "assignments": [ - 1222 - ], - "declarations": [ - { - "constant": false, - "id": 1222, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1243, - "src": "31297:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1221, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31297:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1228, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1223, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31319:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1225, - "indexExpression": { - "argumentTypes": null, - "id": 1224, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31332:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1227, - "indexExpression": { - "argumentTypes": null, - "id": 1226, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31338:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:34:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - 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"isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - 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"typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 47, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "1257:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1207:64:1" - }, - "src": "1187:85:1" - }, - { - "body": null, - "documentation": "@dev Returns the number of NFTs in `owner`'s account.", - "id": 57, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "balanceOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 53, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 52, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 57, - "src": "1374:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 51, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1374:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1373:15:1" - }, - "returnParameters": { - "id": 56, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 55, - "name": "balance", - "nodeType": "VariableDeclaration", - "scope": 57, - "src": "1410:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 54, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1410:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1409:17:1" - }, - "scope": 124, - "src": "1355:72:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Returns the owner of the NFT specified by `tokenId`.", - "id": 64, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "ownerOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 60, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 59, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1531:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 58, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1531:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1530:17:1" - }, - "returnParameters": { - "id": 63, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 62, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1569:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 61, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1569:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1568:15:1" - }, - "scope": 124, - "src": "1514:70:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * \n * Requirements:\n- `from`, `to` cannot be zero.\n- `tokenId` must be owned by `from`.\n- If the caller is not `from`, it must be have been allowed to move this\nNFT by either `approve` or `setApproveForAll`.", - "id": 73, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 71, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 66, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "1992:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 65, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1992:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 68, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2006:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 67, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2006:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 70, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2018:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 69, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2018:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1991:43:1" - }, - "returnParameters": { - "id": 72, - "nodeType": "ParameterList", - "parameters": [], - "src": "2041:0:1" - }, - "scope": 124, - "src": "1966:76:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * Requirements:\n- If the caller is not `from`, it must be approved to move this NFT by\neither `approve` or `setApproveForAll`.", - "id": 82, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 80, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 75, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2339:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 74, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2339:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 77, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2353:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 76, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2353:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 79, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2365:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 78, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2365:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2338:43:1" - }, - "returnParameters": { - "id": 81, - "nodeType": "ParameterList", - "parameters": [], - "src": "2388:0:1" - }, - "scope": 124, - "src": "2317:72:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 89, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "approve", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 87, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 84, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2411:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 83, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2411:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 86, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2423:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 85, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2423:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2410:29:1" - }, - "returnParameters": { - "id": 88, - "nodeType": "ParameterList", - "parameters": [], - "src": "2446:0:1" - }, - "scope": 124, - "src": "2394:53:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 96, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "getApproved", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 92, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 91, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2473:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 90, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2473:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2472:17:1" - }, - "returnParameters": { - "id": 95, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 94, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2511:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 93, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2511:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2510:18:1" - }, - "scope": 124, - "src": "2452:77:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 103, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "setApprovalForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 101, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 98, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2562:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 97, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2562:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 100, - "name": "_approved", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2580:14:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 99, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2580:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2561:34:1" - }, - "returnParameters": { - "id": 102, - "nodeType": "ParameterList", - "parameters": [], - "src": "2602:0:1" - }, - "scope": 124, - "src": "2535:68:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 112, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "isApprovedForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 108, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 105, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2634:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 104, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2634:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 107, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2649:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 106, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2649:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2633:33:1" - }, - "returnParameters": { - "id": 111, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 110, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2688:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 109, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2688:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2687:6:1" - }, - "scope": 124, - "src": "2608:86:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 123, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 121, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 114, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2727:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 113, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2727:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 116, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2741:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 115, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2741:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 118, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2753:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 117, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2753:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 120, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2770:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 119, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "2770:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2726:62:1" - }, - "returnParameters": { - "id": 122, - "nodeType": "ParameterList", - "parameters": [], - "src": "2795:0:1" - }, - "scope": 124, - "src": "2701:95:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "972:1826:1" - }, - { - "id": 125, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "2867:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "contract", - "documentation": "@title ERC721 token receiver interface\n@dev Interface for any contract that wants to support safeTransfers\nfrom ERC721 asset contracts.", - "fullyImplemented": false, - "id": 139, - "linearizedBaseContracts": [ - 139 - ], - "name": "IERC721Receiver", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@notice Handle the receipt of an NFT\n@dev The ERC721 smart contract calls this function on the recipient\nafter a `safeTransfer`. This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. 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"names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - 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Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - }, - "returnParameters": { - "id": 370, - "nodeType": "ParameterList", - "parameters": [], - "src": "11598:0:1" - }, - "scope": 386, - "src": "11541:190:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "10321:1412:1" - }, - { - "id": 387, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "11793:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 388, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "11968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 389, - "nodeType": "InheritanceSpecifier", - "src": "11968:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 390, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "11976:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 391, - "nodeType": "InheritanceSpecifier", - "src": "11976:7:1" - } - ], - "contractDependencies": [ - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 944, - "linearizedBaseContracts": [ - 944, - 124, - 386, - 23 - ], - "name": "ERC721", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 394, - "libraryName": { - "contractScope": null, - "id": 392, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "11996:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "11990:27:1", - "typeName": { - "id": 393, - "name": "uint256", - 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"typeString": "library Counters" - } - }, - "nodeType": "UsingForDirective", - "src": "12053:36:1", - "typeName": { - "contractScope": null, - "id": 399, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12072:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - { - "constant": true, - "id": 403, - "name": "_ERC721_RECEIVED", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12267:53:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 401, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "12267:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783135306237613032", - "id": 402, - "isConstant": false, - 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"typeIdentifier": "t_mapping$_t_address_$_t_struct$_Counter_$296_storage_$", - "typeString": "mapping(address => struct Counters.Counter)" - }, - "valueType": { - "contractScope": null, - "id": 413, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12599:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 421, - "name": "_operatorApprovals", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12697:73:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", - "typeString": "mapping(address => mapping(address => bool))" - }, - "typeName": { - "id": 420, - "keyType": { - "id": 416, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12706:7:1", - 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"nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "27799:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1077, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27799:47:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1078, - "nodeType": "ExpressionStatement", - "src": "27799:47:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1080, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1061, - "src": "27885:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1081, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1063, - "src": "27889:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1079, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "27857:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1082, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27857:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1083, - "nodeType": "ExpressionStatement", - "src": "27857:40:1" - } - ] - }, - "documentation": "@dev Internal function to transfer ownership of a given token ID to another address.\nAs opposed to transferFrom, this imposes no restrictions on msg.sender.\n@param from current owner of the token\n@param to address to receive the ownership of the given token ID\n@param tokenId uint256 ID of the token to be transferred", - "id": 1085, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1064, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1059, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27688:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1058, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27688:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1061, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27702:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1060, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27702:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1063, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27714:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1062, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "27714:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "27687:43:1" - }, - "returnParameters": { - "id": 1065, - "nodeType": "ParameterList", - "parameters": [], - "src": "27740:0:1" - }, - "scope": 1302, - "src": "27665:239:1", - "stateMutability": "nonpayable", - "superFunction": 880, - "visibility": "internal" - }, - { - "body": { - "id": 1108, - "nodeType": "Block", - "src": "28214:143:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1095, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28236:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1096, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28240:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1092, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28224:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1094, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_mint", - "nodeType": "MemberAccess", - "referencedDeclaration": 768, - "src": "28224:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1097, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28224:24:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1098, - "nodeType": "ExpressionStatement", - "src": "28224:24:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1100, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28287:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1101, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28291:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1099, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "28259:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1102, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28259:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1103, - "nodeType": "ExpressionStatement", - "src": "28259:40:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1105, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28342:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1104, - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1195, - "src": "28310:31:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1106, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28310:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1107, - "nodeType": "ExpressionStatement", - "src": "28310:40:1" - } - ] - }, - "documentation": "@dev Internal function to mint a new token.\nReverts if the given token ID already exists.\n@param to address the beneficiary that will own the minted token\n@param tokenId uint256 ID of the token to be minted", - "id": 1109, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_mint", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1090, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1087, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28176:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1086, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28176:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1089, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28188:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1088, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28188:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28175:29:1" - }, - "returnParameters": { - "id": 1091, - "nodeType": "ParameterList", - "parameters": [], - "src": "28214:0:1" - }, - "scope": 1302, - "src": "28161:196:1", - "stateMutability": "nonpayable", - "superFunction": 768, - "visibility": "internal" - }, - { - "body": { - "id": 1138, - "nodeType": "Block", - "src": "28688:308:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1119, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28710:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1120, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28717:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1116, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28698:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1118, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_burn", - "nodeType": "MemberAccess", - "referencedDeclaration": 811, - "src": "28698:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1121, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28698:27:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1122, - "nodeType": "ExpressionStatement", - "src": "28698:27:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1124, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28769:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1125, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28776:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1123, - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "28736:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1126, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28736:48:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1127, - "nodeType": "ExpressionStatement", - "src": "28736:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1132, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1128, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "28903:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1130, - "indexExpression": { - "argumentTypes": null, - "id": 1129, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28921:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "28903:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1131, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "28932:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "28903:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1133, - "nodeType": "ExpressionStatement", - "src": "28903:30:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1135, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28981:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1134, - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1301, - "src": "28944:36:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1136, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28944:45:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1137, - "nodeType": "ExpressionStatement", - "src": "28944:45:1" - } - ] - }, - "documentation": "@dev Internal function to burn a specific token.\nReverts if the token does not exist.\nDeprecated, use _burn(uint256) instead.\n@param owner owner of the token to burn\n@param tokenId uint256 ID of the token being burned", - "id": 1139, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_burn", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1114, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1111, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28647:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1110, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28647:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1113, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28662:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1112, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28662:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28646:32:1" - }, - "returnParameters": { - "id": 1115, - "nodeType": "ParameterList", - "parameters": [], - "src": "28688:0:1" - }, - "scope": 1302, - "src": "28632:364:1", - "stateMutability": "nonpayable", - "superFunction": 811, - "visibility": "internal" - 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"typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "32485:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1259, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32463:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1260, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "32463:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1261, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1265, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32497:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1270, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1267, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "32518:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1269, - "indexExpression": { - "argumentTypes": null, - "id": 1268, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "32534:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32518:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32497:45:1" - }, - { - "assignments": [ - 1272 - ], - "declarations": [ - { - "constant": false, - "id": 1272, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32864:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1271, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32864:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1276, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1273, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32886:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1275, - "indexExpression": { - "argumentTypes": null, - "id": 1274, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1258, - "src": "32897:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32886:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32864:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1281, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1277, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32923:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1279, - "indexExpression": { - "argumentTypes": null, - "id": 1278, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "32934:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "32923:22:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1280, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "32948:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "32923:36:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1282, - "nodeType": "ExpressionStatement", - "src": "32923:36:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1287, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1283, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33027:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1285, - "indexExpression": { - "argumentTypes": null, - "id": 1284, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "33043:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33027:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1286, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "33058:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "33027:41:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1288, - "nodeType": "ExpressionStatement", - "src": "33027:41:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1292, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "33189:19:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1289, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "33189:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1291, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "33189:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1293, - "nodeType": "ExpressionStatement", - "src": "33189:19:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1298, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1294, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33218:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1296, - "indexExpression": { - "argumentTypes": null, - "id": 1295, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "33234:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33218:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1297, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "33245:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "33218:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1299, - "nodeType": "ExpressionStatement", - "src": "33218:28:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's token tracking data structures.\nThis has O(1) time complexity, but alters the order of the _allTokens array.\n@param tokenId uint256 ID of the token to be removed from the tokens list", - "id": 1301, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1255, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1254, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1301, - "src": "32235:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1253, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32235:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "32234:17:1" - }, - "returnParameters": { - "id": 1256, - "nodeType": "ParameterList", - "parameters": [], - "src": "32260:0:1" - }, - "scope": 1302, - "src": "32189:1064:1", - "stateMutability": "nonpayable", - 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May return an empty string.\n@param tokenId uint256 ID of the token to query", - "id": 1396, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "tokenURI", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1380, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1379, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1396, - "src": "35304:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1378, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "35304:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "35303:17:1" - }, - "returnParameters": { - "id": 1383, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1382, - "name": "", - 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"src": "36846:16:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1454, - "name": "ERC721Metadata", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 1448, - "src": "36864:14:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721Metadata_$1448", - "typeString": "contract ERC721Metadata" - } - }, - "id": 1455, - "nodeType": "InheritanceSpecifier", - "src": "36864:14:1" - } - ], - "contractDependencies": [ - 944, - 969, - 23, - 124, - 386, - 1302, - 1323, - 1448 - ], - "contractKind": "contract", - "documentation": "@title Full ERC721 Token\nThis implementation includes all the required and some optional functionality of the ERC721 standard\nMoreover, it includes approve all functionality using operator terminology\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 1468, - "linearizedBaseContracts": [ - 1468, - 1448, - 1323, - 1302, - 969, - 944, - 124, - 386, - 23 - ], - "name": "ERC721Full", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": { - "id": 1466, - "nodeType": "Block", - "src": "36976:64:1", - "statements": [] - }, - "documentation": null, - "id": 1467, - "implemented": true, - "kind": "constructor", - "modifiers": [ - { - "arguments": [ - { - "argumentTypes": null, - "id": 1462, - "name": "name", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1457, - "src": "36962:4:1", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string memory" - } - }, - { - "argumentTypes": null, - "id": 1463, - "name": "symbol", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1459, - "src": "36968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string memory" - } - } - ], - "id": 1464, - "modifierName": { - "argumentTypes": null, - "id": 1461, - "name": "ERC721Metadata", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1448, - "src": "36947:14:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_contract$_ERC721Metadata_$1448_$", - "typeString": "type(contract ERC721Metadata)" - } - }, - "nodeType": "ModifierInvocation", - "src": "36947:28:1" - } - ], - "name": "", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1460, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1457, - "name": "name", - "nodeType": "VariableDeclaration", - "scope": 1467, - "src": "36898:18:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1456, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "36898:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1459, - "name": "symbol", - "nodeType": "VariableDeclaration", - "scope": 1467, - "src": "36918:20:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1458, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "36918:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "36897:42:1" - }, - "returnParameters": { - "id": 1465, - "nodeType": "ParameterList", - "parameters": [], - "src": "36976:0:1" - }, - "scope": 1468, - "src": "36885:155:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "36815:227:1" - } - ], - "src": "61:36982:1" - }, - "compiler": { - "name": "solc", - "version": "0.5.0+commit.1d4f565a.Emscripten.clang" - }, - "networks": {}, - "schemaVersion": "3.0.2", - "updatedAt": "2019-09-05T15:01:08.626Z", - "devdoc": { - "details": "See https://eips.ethereum.org/EIPS/eip-721", - "methods": { - "approve(address,uint256)": { - "details": "Approves another address to transfer the given token ID The zero address indicates there is no approved address. There can only be one approved address per token at a given time. Can only be called by the token owner or an approved operator.", - "params": { - "to": "address to be approved for the given token ID", - "tokenId": "uint256 ID of the token to be approved" - } - }, - "balanceOf(address)": { - "details": "Gets the balance of the specified address.", - "params": { - "owner": "address to query the balance of" - }, - "return": "uint256 representing the amount owned by the passed address" - }, - "constructor": { - "details": "Constructor function." - }, - "getApproved(uint256)": { - "details": "Gets the approved address for a token ID, or zero if no address set Reverts if the token ID does not exist.", - "params": { - "tokenId": "uint256 ID of the token to query the approval of" - }, - "return": "address currently approved for the given token ID" - }, - "isApprovedForAll(address,address)": { - "details": "Tells whether an operator is approved by a given owner.", - "params": { - "operator": "operator address which you want to query the approval of", - "owner": "owner address which you want to query the approval of" - }, - "return": "bool whether the given operator is approved by the given owner" - }, - "ownerOf(uint256)": { - "details": "Gets the owner of the specified token ID.", - "params": { - "tokenId": "uint256 ID of the token to query the owner of" - }, - "return": "address currently marked as the owner of the given token ID" - }, - "safeTransferFrom(address,address,uint256)": { - "details": "Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise, the transfer is reverted. Requires the msg.sender to be the owner, approved, or operator", - "params": { - "from": "current owner of the token", - "to": "address to receive the ownership of the given token ID", - "tokenId": "uint256 ID of the token to be transferred" - } - }, - "safeTransferFrom(address,address,uint256,bytes)": { - "details": "Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise, the transfer is reverted. Requires the msg.sender to be the owner, approved, or operator", - "params": { - "_data": "bytes data to send along with a safe transfer check", - "from": "current owner of the token", - "to": "address to receive the ownership of the given token ID", - "tokenId": "uint256 ID of the token to be transferred" - } - }, - "setApprovalForAll(address,bool)": { - "details": "Sets or unsets the approval of a given operator An operator is allowed to transfer all tokens of the sender on their behalf.", - "params": { - "approved": "representing the status of the approval to be set", - "to": "operator address to set the approval" - } - }, - "supportsInterface(bytes4)": { - "details": "See `IERC165.supportsInterface`. * Time complexity O(1), guaranteed to always use less than 30 000 gas." - }, - "tokenByIndex(uint256)": { - "details": "Gets the token ID at a given index of all the tokens in this contract Reverts if the index is greater or equal to the total number of tokens.", - "params": { - "index": "uint256 representing the index to be accessed of the tokens list" - }, - "return": "uint256 token ID at the given index of the tokens list" - }, - "tokenOfOwnerByIndex(address,uint256)": { - "details": "Gets the token ID at a given index of the tokens list of the requested owner.", - "params": { - "index": "uint256 representing the index to be accessed of the requested tokens list", - "owner": "address owning the tokens list to be accessed" - }, - "return": "uint256 token ID at the given index of the tokens list owned by the requested address" - }, - "totalSupply()": { - "details": "Gets the total amount of tokens stored by the contract.", - "return": "uint256 representing the total amount of tokens" - }, - "transferFrom(address,address,uint256)": { - "details": "Transfers the ownership of a given token ID to another address. Usage of this method is discouraged, use `safeTransferFrom` whenever possible. Requires the msg.sender to be the owner, approved, or operator.", - "params": { - "from": "current owner of the token", - "to": "address to receive the ownership of the given token ID", - "tokenId": "uint256 ID of the token to be transferred" - } - } - }, - "title": "ERC-721 Non-Fungible Token with optional enumeration extension logic" - }, - "userdoc": { - "methods": {} - } -} \ No newline at end of file diff --git a/src/abis/ERC721Full.json b/src/abis/ERC721Full.json deleted file mode 100644 index 1f318c5..0000000 --- a/src/abis/ERC721Full.json +++ /dev/null @@ -1,37944 +0,0 @@ -{ - "contractName": "ERC721Full", - "abi": [ - { - "constant": true, - "inputs": [ - { - "name": "interfaceId", - "type": "bytes4" - } - ], - "name": "supportsInterface", - "outputs": [ - { - "name": "", - "type": "bool" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [], - "name": "name", - "outputs": [ - { - "name": "", - "type": "string" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "getApproved", - "outputs": [ - { - "name": "", - "type": "address" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "approve", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": true, - "inputs": [], - "name": "totalSupply", - "outputs": [ - { - "name": "", - "type": "uint256" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "from", - "type": "address" - }, - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "transferFrom", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "owner", - "type": "address" - }, - { - "name": "index", - "type": "uint256" - } - ], - "name": "tokenOfOwnerByIndex", - "outputs": [ - { - "name": "", - "type": "uint256" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "from", - "type": "address" - }, - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "safeTransferFrom", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "index", - "type": "uint256" - } - ], - "name": "tokenByIndex", - "outputs": [ - { - "name": "", - "type": "uint256" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "ownerOf", - "outputs": [ - { - "name": "", - "type": "address" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "owner", - "type": "address" - } - ], - "name": "balanceOf", - "outputs": [ - { - "name": "", - "type": "uint256" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [], - "name": "symbol", - "outputs": [ - { - "name": "", - "type": "string" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "to", - "type": "address" - }, - { - "name": "approved", - "type": "bool" - } - ], - "name": "setApprovalForAll", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "from", - "type": "address" - }, - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - }, - { - "name": "_data", - "type": "bytes" - } - ], - "name": "safeTransferFrom", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "tokenURI", - "outputs": [ - { - "name": "", - "type": "string" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "owner", - "type": "address" - }, - { - "name": "operator", - "type": "address" - } - ], - "name": "isApprovedForAll", - "outputs": [ - { - "name": "", - "type": "bool" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "inputs": [ - { - "name": "name", - "type": "string" - }, - { - "name": "symbol", - "type": "string" - } - ], - "payable": 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- "source": "\n// File: @openzeppelin/contracts/introspection/IERC165.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * [EIP](https://eips.ethereum.org/EIPS/eip-165).\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others (`ERC165Checker`).\n *\n * For an implementation, see `ERC165`.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ncontract IERC721 is IERC165 {\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of NFTs in `owner`'s account.\n */\n function balanceOf(address owner) public view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the NFT specified by `tokenId`.\n */\n function ownerOf(uint256 tokenId) public view returns (address owner);\n\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * \n *\n * Requirements:\n * - `from`, `to` cannot be zero.\n * - `tokenId` must be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this\n * NFT by either `approve` or `setApproveForAll`.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public;\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * Requirements:\n * - If the caller is not `from`, it must be approved to move this NFT by\n * either `approve` or `setApproveForAll`.\n */\n function transferFrom(address from, address to, uint256 tokenId) public;\n function approve(address to, uint256 tokenId) public;\n function getApproved(uint256 tokenId) public view returns (address operator);\n\n function setApprovalForAll(address operator, bool _approved) public;\n function isApprovedForAll(address owner, address operator) public view returns (bool);\n\n\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public;\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ncontract IERC721Receiver {\n /**\n * @notice Handle the receipt of an NFT\n * @dev The ERC721 smart contract calls this function on the recipient\n * after a `safeTransfer`. This function MUST return the function selector,\n * otherwise the caller will revert the transaction. The selector to be\n * returned can be obtained as `this.onERC721Received.selector`. This\n * function MAY throw to revert and reject the transfer.\n * Note: the ERC721 contract address is always the message sender.\n * @param operator The address which called `safeTransferFrom` function\n * @param from The address which previously owned the token\n * @param tokenId The NFT identifier which is being transferred\n * @param data Additional data with no specified format\n * @return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n */\n function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data)\n public returns (bytes4);\n}\n\n// File: @openzeppelin/contracts/math/SafeMath.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\n * checks.\n *\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\n * in bugs, because programmers usually assume that an overflow raises an\n * error, which is the standard behavior in high level programming languages.\n * `SafeMath` restores this intuition by reverting the transaction when an\n * operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeMath {\n /**\n * @dev Returns the addition of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `+` operator.\n *\n * Requirements:\n * - Addition cannot overflow.\n */\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting on\n * overflow (when the result is negative).\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n * - Subtraction cannot overflow.\n */\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b <= a, \"SafeMath: subtraction overflow\");\n uint256 c = a - b;\n\n return c;\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `*` operator.\n *\n * Requirements:\n * - Multiplication cannot overflow.\n */\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers. Reverts on\n * division by zero. The result is rounded towards zero.\n *\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n * uses an invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n // Solidity only automatically asserts when dividing by 0\n require(b > 0, \"SafeMath: division by zero\");\n uint256 c = a / b;\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n return c;\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * Reverts when dividing by zero.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b != 0, \"SafeMath: modulo by zero\");\n return a % b;\n }\n}\n\n// File: @openzeppelin/contracts/utils/Address.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Collection of functions related to the address type,\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * This test is non-exhaustive, and there may be false-negatives: during the\n * execution of a contract's constructor, its address will be reported as\n * not containing a contract.\n *\n * > It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies in extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n}\n\n// File: @openzeppelin/contracts/drafts/Counters.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title Counters\n * @author Matt Condon (@shrugs)\n * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number\n * of elements in a mapping, issuing ERC721 ids, or counting request ids.\n *\n * Include with `using Counters for Counters.Counter;`\n * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath\n * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never\n * directly accessed.\n */\nlibrary Counters {\n using SafeMath for uint256;\n\n struct Counter {\n // This variable should never be directly accessed by users of the library: interactions must be restricted to\n // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add\n // this feature: see https://github.com/ethereum/solidity/issues/4637\n uint256 _value; // default: 0\n }\n\n function current(Counter storage counter) internal view returns (uint256) {\n return counter._value;\n }\n\n function increment(Counter storage counter) internal {\n counter._value += 1;\n }\n\n function decrement(Counter storage counter) internal {\n counter._value = counter._value.sub(1);\n }\n}\n\n// File: @openzeppelin/contracts/introspection/ERC165.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Implementation of the `IERC165` interface.\n *\n * Contracts may inherit from this and call `_registerInterface` to declare\n * their support of an interface.\n */\ncontract ERC165 is IERC165 {\n /*\n * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7\n */\n bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;\n\n /**\n * @dev Mapping of interface ids to whether or not it's supported.\n */\n mapping(bytes4 => bool) private _supportedInterfaces;\n\n constructor () internal {\n // Derived contracts need only register support for their own interfaces,\n // we register support for ERC165 itself here\n _registerInterface(_INTERFACE_ID_ERC165);\n }\n\n /**\n * @dev See `IERC165.supportsInterface`.\n *\n * Time complexity O(1), guaranteed to always use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool) {\n return _supportedInterfaces[interfaceId];\n }\n\n /**\n * @dev Registers the contract as an implementer of the interface defined by\n * `interfaceId`. Support of the actual ERC165 interface is automatic and\n * registering its interface id is not required.\n *\n * See `IERC165.supportsInterface`.\n *\n * Requirements:\n *\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).\n */\n function _registerInterface(bytes4 interfaceId) internal {\n require(interfaceId != 0xffffffff, \"ERC165: invalid interface id\");\n _supportedInterfaces[interfaceId] = true;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n\n\n\n/**\n * @title ERC721 Non-Fungible Token Standard basic implementation\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721 is ERC165, IERC721 {\n using SafeMath for uint256;\n using Address for address;\n using Counters for Counters.Counter;\n\n // Equals to `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`\n bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;\n\n // Mapping from token ID to owner\n mapping (uint256 => address) private _tokenOwner;\n\n // Mapping from token ID to approved address\n mapping (uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to number of owned token\n mapping (address => Counters.Counter) private _ownedTokensCount;\n\n // Mapping from owner to operator approvals\n mapping (address => mapping (address => bool)) private _operatorApprovals;\n\n /*\n * bytes4(keccak256('balanceOf(address)')) == 0x70a08231\n * bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e\n * bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3\n * bytes4(keccak256('getApproved(uint256)')) == 0x081812fc\n * bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465\n * bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c\n * bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd\n * bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e\n * bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde\n *\n * => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^\n * 0xa22cb465 ^ 0xe985e9c ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd\n */\n bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;\n\n constructor () public {\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721);\n }\n\n /**\n * @dev Gets the balance of the specified address.\n * @param owner address to query the balance of\n * @return uint256 representing the amount owned by the passed address\n */\n function balanceOf(address owner) public view returns (uint256) {\n require(owner != address(0), \"ERC721: balance query for the zero address\");\n\n return _ownedTokensCount[owner].current();\n }\n\n /**\n * @dev Gets the owner of the specified token ID.\n * @param tokenId uint256 ID of the token to query the owner of\n * @return address currently marked as the owner of the given token ID\n */\n function ownerOf(uint256 tokenId) public view returns (address) {\n address owner = _tokenOwner[tokenId];\n require(owner != address(0), \"ERC721: owner query for nonexistent token\");\n\n return owner;\n }\n\n /**\n * @dev Approves another address to transfer the given token ID\n * The zero address indicates there is no approved address.\n * There can only be one approved address per token at a given time.\n * Can only be called by the token owner or an approved operator.\n * @param to address to be approved for the given token ID\n * @param tokenId uint256 ID of the token to be approved\n */\n function approve(address to, uint256 tokenId) public {\n address owner = ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(msg.sender == owner || isApprovedForAll(owner, msg.sender),\n \"ERC721: approve caller is not owner nor approved for all\"\n );\n\n _tokenApprovals[tokenId] = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Gets the approved address for a token ID, or zero if no address set\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to query the approval of\n * @return address currently approved for the given token ID\n */\n function getApproved(uint256 tokenId) public view returns (address) {\n require(_exists(tokenId), \"ERC721: approved query for nonexistent token\");\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev Sets or unsets the approval of a given operator\n * An operator is allowed to transfer all tokens of the sender on their behalf.\n * @param to operator address to set the approval\n * @param approved representing the status of the approval to be set\n */\n function setApprovalForAll(address to, bool approved) public {\n require(to != msg.sender, \"ERC721: approve to caller\");\n\n _operatorApprovals[msg.sender][to] = approved;\n emit ApprovalForAll(msg.sender, to, approved);\n }\n\n /**\n * @dev Tells whether an operator is approved by a given owner.\n * @param owner owner address which you want to query the approval of\n * @param operator operator address which you want to query the approval of\n * @return bool whether the given operator is approved by the given owner\n */\n function isApprovedForAll(address owner, address operator) public view returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev Transfers the ownership of a given token ID to another address.\n * Usage of this method is discouraged, use `safeTransferFrom` whenever possible.\n * Requires the msg.sender to be the owner, approved, or operator.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function transferFrom(address from, address to, uint256 tokenId) public {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(msg.sender, tokenId), \"ERC721: transfer caller is not owner nor approved\");\n\n _transferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes data to send along with a safe transfer check\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public {\n transferFrom(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, _data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns whether the specified token exists.\n * @param tokenId uint256 ID of the token to query the existence of\n * @return bool whether the token exists\n */\n function _exists(uint256 tokenId) internal view returns (bool) {\n address owner = _tokenOwner[tokenId];\n return owner != address(0);\n }\n\n /**\n * @dev Returns whether the given spender can transfer a given token ID.\n * @param spender address of the spender to query\n * @param tokenId uint256 ID of the token to be transferred\n * @return bool whether the msg.sender is approved for the given token ID,\n * is an operator of the owner, or is the owner of the token\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view returns (bool) {\n require(_exists(tokenId), \"ERC721: operator query for nonexistent token\");\n address owner = ownerOf(tokenId);\n return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to The address that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _tokenOwner[tokenId] = to;\n _ownedTokensCount[to].increment();\n\n emit Transfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n require(ownerOf(tokenId) == owner, \"ERC721: burn of token that is not own\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[owner].decrement();\n _tokenOwner[tokenId] = address(0);\n\n emit Transfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(uint256 tokenId) internal {\n _burn(ownerOf(tokenId), tokenId);\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n require(ownerOf(tokenId) == from, \"ERC721: transfer of token that is not own\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[from].decrement();\n _ownedTokensCount[to].increment();\n\n _tokenOwner[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n }\n\n /**\n * @dev Internal function to invoke `onERC721Received` on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * This function is deprecated.\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data)\n internal returns (bool)\n {\n if (!to.isContract()) {\n return true;\n }\n\n bytes4 retval = IERC721Receiver(to).onERC721Received(msg.sender, from, tokenId, _data);\n return (retval == _ERC721_RECEIVED);\n }\n\n /**\n * @dev Private function to clear current approval of a given token ID.\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _clearApproval(uint256 tokenId) private {\n if (_tokenApprovals[tokenId] != address(0)) {\n _tokenApprovals[tokenId] = address(0);\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Enumerable is IERC721 {\n function totalSupply() public view returns (uint256);\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256 tokenId);\n\n function tokenByIndex(uint256 index) public view returns (uint256);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title ERC-721 Non-Fungible Token with optional enumeration extension logic\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Enumerable is ERC165, ERC721, IERC721Enumerable {\n // Mapping from owner to list of owned token IDs\n mapping(address => uint256[]) private _ownedTokens;\n\n // Mapping from token ID to index of the owner tokens list\n mapping(uint256 => uint256) private _ownedTokensIndex;\n\n // Array with all token ids, used for enumeration\n uint256[] private _allTokens;\n\n // Mapping from token id to position in the allTokens array\n mapping(uint256 => uint256) private _allTokensIndex;\n\n /*\n * bytes4(keccak256('totalSupply()')) == 0x18160ddd\n * bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59\n * bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7\n *\n * => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63\n */\n bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;\n\n /**\n * @dev Constructor function.\n */\n constructor () public {\n // register the supported interface to conform to ERC721Enumerable via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);\n }\n\n /**\n * @dev Gets the token ID at a given index of the tokens list of the requested owner.\n * @param owner address owning the tokens list to be accessed\n * @param index uint256 representing the index to be accessed of the requested tokens list\n * @return uint256 token ID at the given index of the tokens list owned by the requested address\n */\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) {\n require(index < balanceOf(owner), \"ERC721Enumerable: owner index out of bounds\");\n return _ownedTokens[owner][index];\n }\n\n /**\n * @dev Gets the total amount of tokens stored by the contract.\n * @return uint256 representing the total amount of tokens\n */\n function totalSupply() public view returns (uint256) {\n return _allTokens.length;\n }\n\n /**\n * @dev Gets the token ID at a given index of all the tokens in this contract\n * Reverts if the index is greater or equal to the total number of tokens.\n * @param index uint256 representing the index to be accessed of the tokens list\n * @return uint256 token ID at the given index of the tokens list\n */\n function tokenByIndex(uint256 index) public view returns (uint256) {\n require(index < totalSupply(), \"ERC721Enumerable: global index out of bounds\");\n return _allTokens[index];\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n super._transferFrom(from, to, tokenId);\n\n _removeTokenFromOwnerEnumeration(from, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to address the beneficiary that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n super._mint(to, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n\n _addTokenToAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n _removeTokenFromOwnerEnumeration(owner, tokenId);\n // Since tokenId will be deleted, we can clear its slot in _ownedTokensIndex to trigger a gas refund\n _ownedTokensIndex[tokenId] = 0;\n\n _removeTokenFromAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Gets the list of token IDs of the requested owner.\n * @param owner address owning the tokens\n * @return uint256[] List of token IDs owned by the requested address\n */\n function _tokensOfOwner(address owner) internal view returns (uint256[] storage) {\n return _ownedTokens[owner];\n }\n\n /**\n * @dev Private function to add a token to this extension's ownership-tracking data structures.\n * @param to address representing the new owner of the given token ID\n * @param tokenId uint256 ID of the token to be added to the tokens list of the given address\n */\n function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {\n _ownedTokensIndex[tokenId] = _ownedTokens[to].length;\n _ownedTokens[to].push(tokenId);\n }\n\n /**\n * @dev Private function to add a token to this extension's token tracking data structures.\n * @param tokenId uint256 ID of the token to be added to the tokens list\n */\n function _addTokenToAllTokensEnumeration(uint256 tokenId) private {\n _allTokensIndex[tokenId] = _allTokens.length;\n _allTokens.push(tokenId);\n }\n\n /**\n * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\n * while the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\n * gas optimizations e.g. when performing a transfer operation (avoiding double writes).\n * This has O(1) time complexity, but alters the order of the _ownedTokens array.\n * @param from address representing the previous owner of the given token ID\n * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address\n */\n function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {\n // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _ownedTokens[from].length.sub(1);\n uint256 tokenIndex = _ownedTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary\n if (tokenIndex != lastTokenIndex) {\n uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];\n\n _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n }\n\n // This also deletes the contents at the last position of the array\n _ownedTokens[from].length--;\n\n // Note that _ownedTokensIndex[tokenId] hasn't been cleared: it still points to the old slot (now occupied by\n // lastTokenId, or just over the end of the array if the token was the last one).\n }\n\n /**\n * @dev Private function to remove a token from this extension's token tracking data structures.\n * This has O(1) time complexity, but alters the order of the _allTokens array.\n * @param tokenId uint256 ID of the token to be removed from the tokens list\n */\n function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {\n // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _allTokens.length.sub(1);\n uint256 tokenIndex = _allTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so\n // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding\n // an 'if' statement (like in _removeTokenFromOwnerEnumeration)\n uint256 lastTokenId = _allTokens[lastTokenIndex];\n\n _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n\n // This also deletes the contents at the last position of the array\n _allTokens.length--;\n _allTokensIndex[tokenId] = 0;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Metadata is IERC721 {\n function name() external view returns (string memory);\n function symbol() external view returns (string memory);\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n\n\ncontract ERC721Metadata is ERC165, ERC721, IERC721Metadata {\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Optional mapping for token URIs\n mapping(uint256 => string) private _tokenURIs;\n\n /*\n * bytes4(keccak256('name()')) == 0x06fdde03\n * bytes4(keccak256('symbol()')) == 0x95d89b41\n * bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd\n *\n * => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f\n */\n bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;\n\n /**\n * @dev Constructor function\n */\n constructor (string memory name, string memory symbol) public {\n _name = name;\n _symbol = symbol;\n\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_METADATA);\n }\n\n /**\n * @dev Gets the token name.\n * @return string representing the token name\n */\n function name() external view returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Gets the token symbol.\n * @return string representing the token symbol\n */\n function symbol() external view returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns an URI for a given token ID.\n * Throws if the token ID does not exist. May return an empty string.\n * @param tokenId uint256 ID of the token to query\n */\n function tokenURI(uint256 tokenId) external view returns (string memory) {\n require(_exists(tokenId), \"ERC721Metadata: URI query for nonexistent token\");\n return _tokenURIs[tokenId];\n }\n\n /**\n * @dev Internal function to set the token URI for a given token.\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to set its URI\n * @param uri string URI to assign\n */\n function _setTokenURI(uint256 tokenId, string memory uri) internal {\n require(_exists(tokenId), \"ERC721Metadata: URI set of nonexistent token\");\n _tokenURIs[tokenId] = uri;\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned by the msg.sender\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n // Clear metadata (if any)\n if (bytes(_tokenURIs[tokenId]).length != 0) {\n delete _tokenURIs[tokenId];\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Full.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title Full ERC721 Token\n * This implementation includes all the required and some optional functionality of the ERC721 standard\n * Moreover, it includes approve all functionality using operator terminology\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Full is ERC721, ERC721Enumerable, ERC721Metadata {\n constructor (string memory name, string memory symbol) public ERC721Metadata(name, symbol) {\n // solhint-disable-previous-line no-empty-blocks\n }\n}\n", - "sourcePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "ast": { - "absolutePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "exportedSymbols": { - "Address": [ - 289 - ], - "Counters": [ - 336 - ], - "ERC165": [ - 386 - ], - "ERC721": [ - 944 - ], - "ERC721Enumerable": [ - 1302 - ], - "ERC721Full": [ - 1468 - ], - "ERC721Metadata": [ - 1448 - ], - "IERC165": [ - 23 - ], - "IERC721": [ - 124 - ], - "IERC721Enumerable": [ - 969 - ], - "IERC721Metadata": [ - 1323 - ], - "IERC721Receiver": [ - 139 - ], - "SafeMath": [ - 271 - ] - }, - "id": 1469, - "nodeType": "SourceUnit", - "nodes": [ - { - "id": 15, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "61:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "interface", - "documentation": "@dev Interface of the ERC165 standard, as defined in the\n[EIP](https://eips.ethereum.org/EIPS/eip-165).\n * Implementers can declare support of contract interfaces, which can then be\nqueried by others (`ERC165Checker`).\n * For an implementation, see `ERC165`.", - "fullyImplemented": false, - "id": 23, - "linearizedBaseContracts": [ - 23 - ], - "name": "IERC165", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@dev Returns true if this contract implements the interface defined by\n`interfaceId`. 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This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. This\nfunction MAY throw to revert and reject the transfer.\nNote: the ERC721 contract address is always the message sender.\n@param operator The address which called `safeTransferFrom` function\n@param from The address which previously owned the token\n@param tokenId The NFT identifier which is being transferred\n@param data Additional data with no specified format\n@return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`", - "id": 138, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "onERC721Received", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 134, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 127, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3960:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 126, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "3960:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 129, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3978:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 128, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "3978:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 131, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3992:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 130, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "3992:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 133, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "4009:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 132, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "4009:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "3959:68:1" - }, - "returnParameters": { - "id": 137, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 136, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "4048:6:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 135, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "4048:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "4047:8:1" - }, - "scope": 139, - "src": "3934:122:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "3045:1013:1" - }, - { - "id": 140, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "4112:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "library", - "documentation": "@dev Wrappers over Solidity's arithmetic operations with added overflow\nchecks.\n * Arithmetic operations in Solidity wrap on overflow. 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"names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - 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"typeString": "msg" - } - }, - "id": 908, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sender", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "23630:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - { - "argumentTypes": null, - "id": 909, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 882, - "src": "23642:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 910, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 886, - "src": "23648:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - { - "argumentTypes": null, - "id": 911, - "name": "_data", - "nodeType": "Identifier", - "overloadedDeclarations": [], - 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} - }, - "id": 912, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23593:70:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "23577:86:1" - }, - { - "expression": { - "argumentTypes": null, - "components": [ - { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "id": 916, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 914, - "name": "retval", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 902, - "src": "23681:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "BinaryOperation", - "operator": "==", - "rightExpression": { - 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"typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 883, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "23414:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 886, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23426:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 885, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "23426:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 888, - "name": "_data", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23443:18:1", - 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"rightHandSide": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "30", - "id": 936, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "24029:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - } - ], - "id": 935, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "24021:7:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_address_$", - "typeString": "type(address)" - }, - "typeName": "address" - }, - "id": 937, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "24021:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - "src": "23994:37:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "id": 939, - "nodeType": "ExpressionStatement", - "src": "23994:37:1" - } - ] - } - } - ] - }, - "documentation": "@dev Private function to clear current approval of a given token ID.\n@param tokenId uint256 ID of the token to be transferred", - "id": 943, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_clearApproval", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 923, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 922, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 943, - "src": "23901:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 921, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "23901:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23900:17:1" - }, - "returnParameters": { - "id": 924, - "nodeType": "ParameterList", - "parameters": [], - "src": "23926:0:1" - }, - "scope": 944, - "src": "23877:171:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - } - ], - "scope": 1469, - "src": "11949:12101:1" - }, - { - "id": 945, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "24121:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 946, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "24314:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - 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"typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "29224:15:1" - }, - "returnParameters": { - "id": 1146, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1145, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 1152, - "src": "29263:17:1", - "stateVariable": false, - "storageLocation": "storage", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - }, - "typeName": { - "baseType": { - "id": 1143, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "29263:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1144, - "length": null, - "nodeType": "ArrayTypeName", - "src": "29263:9:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - } - }, - "value": null, - "visibility": "internal" - 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"src": "30073:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1184, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30100:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1185, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30100:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "30073:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1187, - "nodeType": "ExpressionStatement", - "src": "30073:44:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1191, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1178, - "src": "30143:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1188, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30127:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1190, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "push", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30127:15:1", - "typeDescriptions": { - "typeIdentifier": "t_function_arraypush_nonpayable$_t_uint256_$returns$_t_uint256_$", - "typeString": "function (uint256) returns (uint256)" - } - }, - "id": 1192, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "30127:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1193, - "nodeType": "ExpressionStatement", - "src": "30127:24:1" - } - ] - }, - "documentation": "@dev Private function to add a token to this extension's token tracking data structures.\n@param tokenId uint256 ID of the token to be added to the tokens list", - "id": 1195, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1179, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1178, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1195, - "src": "30038:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1177, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30038:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30037:17:1" - }, - "returnParameters": { - "id": 1180, - "nodeType": "ParameterList", - "parameters": [], - "src": "30063:0:1" - }, - "scope": 1302, - "src": "29997:161:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1251, - "nodeType": "Block", - "src": "30854:1047:1", - "statements": [ - { - "assignments": [ - 1203 - ], - "declarations": [ - { - "constant": false, - "id": 1203, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1251, - "src": "31035:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1202, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31035:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1211, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1209, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "31090:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1204, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31060:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1206, - "indexExpression": { - "argumentTypes": null, - "id": 1205, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31073:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31060:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1207, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31060:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1208, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "31060:29:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1210, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "31060:32:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31035:57:1" - }, - { - "assignments": [ - 1213 - ], - "declarations": [ - { - "constant": false, - "id": 1213, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1251, - "src": "31102:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1212, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31102:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1217, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1214, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31123:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1216, - "indexExpression": { - "argumentTypes": null, - "id": 1215, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1199, - "src": "31141:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31123:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31102:47:1" - }, - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "id": 1220, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 1218, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31253:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "id": 1219, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31267:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31253:28:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 1244, - "nodeType": "IfStatement", - "src": "31249:323:1", - "trueBody": { - "id": 1243, - "nodeType": "Block", - "src": "31283:289:1", - "statements": [ - { - "assignments": [ - 1222 - ], - "declarations": [ - { - "constant": false, - "id": 1222, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1243, - "src": "31297:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1221, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31297:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1228, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1223, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31319:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1225, - "indexExpression": { - "argumentTypes": null, - "id": 1224, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31332:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1227, - "indexExpression": { - "argumentTypes": null, - "id": 1226, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31338:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:34:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - 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"isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - 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"typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 47, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "1257:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1207:64:1" - }, - "src": "1187:85:1" - }, - { - "body": null, - "documentation": "@dev Returns the number of NFTs in `owner`'s account.", - "id": 57, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "balanceOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 53, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 52, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 57, - "src": "1374:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 51, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1374:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1373:15:1" - }, - "returnParameters": { - "id": 56, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 55, - "name": "balance", - "nodeType": "VariableDeclaration", - "scope": 57, - "src": "1410:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 54, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1410:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1409:17:1" - }, - "scope": 124, - "src": "1355:72:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Returns the owner of the NFT specified by `tokenId`.", - "id": 64, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "ownerOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 60, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 59, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1531:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 58, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1531:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1530:17:1" - }, - "returnParameters": { - "id": 63, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 62, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1569:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 61, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1569:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1568:15:1" - }, - "scope": 124, - "src": "1514:70:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * \n * Requirements:\n- `from`, `to` cannot be zero.\n- `tokenId` must be owned by `from`.\n- If the caller is not `from`, it must be have been allowed to move this\nNFT by either `approve` or `setApproveForAll`.", - "id": 73, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 71, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 66, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "1992:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 65, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1992:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 68, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2006:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 67, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2006:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 70, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2018:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 69, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2018:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1991:43:1" - }, - "returnParameters": { - "id": 72, - "nodeType": "ParameterList", - "parameters": [], - "src": "2041:0:1" - }, - "scope": 124, - "src": "1966:76:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * Requirements:\n- If the caller is not `from`, it must be approved to move this NFT by\neither `approve` or `setApproveForAll`.", - "id": 82, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 80, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 75, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2339:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 74, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2339:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 77, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2353:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 76, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2353:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 79, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2365:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 78, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2365:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2338:43:1" - }, - "returnParameters": { - "id": 81, - "nodeType": "ParameterList", - "parameters": [], - "src": "2388:0:1" - }, - "scope": 124, - "src": "2317:72:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 89, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "approve", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 87, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 84, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2411:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 83, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2411:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 86, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2423:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 85, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2423:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2410:29:1" - }, - "returnParameters": { - "id": 88, - "nodeType": "ParameterList", - "parameters": [], - "src": "2446:0:1" - }, - "scope": 124, - "src": "2394:53:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 96, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "getApproved", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 92, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 91, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2473:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 90, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2473:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2472:17:1" - }, - "returnParameters": { - "id": 95, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 94, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2511:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 93, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2511:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2510:18:1" - }, - "scope": 124, - "src": "2452:77:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 103, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "setApprovalForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 101, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 98, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2562:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 97, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2562:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 100, - "name": "_approved", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2580:14:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 99, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2580:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2561:34:1" - }, - "returnParameters": { - "id": 102, - "nodeType": "ParameterList", - "parameters": [], - "src": "2602:0:1" - }, - "scope": 124, - "src": "2535:68:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 112, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "isApprovedForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 108, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 105, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2634:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 104, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2634:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 107, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2649:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 106, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2649:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2633:33:1" - }, - "returnParameters": { - "id": 111, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 110, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2688:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 109, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2688:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2687:6:1" - }, - "scope": 124, - "src": "2608:86:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 123, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 121, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 114, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2727:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 113, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2727:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 116, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2741:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 115, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2741:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 118, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2753:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 117, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2753:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 120, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2770:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 119, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "2770:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2726:62:1" - }, - "returnParameters": { - "id": 122, - "nodeType": "ParameterList", - "parameters": [], - "src": "2795:0:1" - }, - "scope": 124, - "src": "2701:95:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "972:1826:1" - }, - { - "id": 125, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "2867:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "contract", - "documentation": "@title ERC721 token receiver interface\n@dev Interface for any contract that wants to support safeTransfers\nfrom ERC721 asset contracts.", - "fullyImplemented": false, - "id": 139, - "linearizedBaseContracts": [ - 139 - ], - "name": "IERC721Receiver", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@notice Handle the receipt of an NFT\n@dev The ERC721 smart contract calls this function on the recipient\nafter a `safeTransfer`. This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. 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"names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - 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Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - }, - "returnParameters": { - "id": 370, - "nodeType": "ParameterList", - "parameters": [], - "src": "11598:0:1" - }, - "scope": 386, - "src": "11541:190:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "10321:1412:1" - }, - { - "id": 387, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "11793:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 388, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "11968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 389, - "nodeType": "InheritanceSpecifier", - "src": "11968:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 390, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "11976:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 391, - "nodeType": "InheritanceSpecifier", - "src": "11976:7:1" - } - ], - "contractDependencies": [ - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 944, - "linearizedBaseContracts": [ - 944, - 124, - 386, - 23 - ], - "name": "ERC721", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 394, - "libraryName": { - "contractScope": null, - "id": 392, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "11996:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "11990:27:1", - "typeName": { - "id": 393, - "name": "uint256", - 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"typeString": "library Counters" - } - }, - "nodeType": "UsingForDirective", - "src": "12053:36:1", - "typeName": { - "contractScope": null, - "id": 399, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12072:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - { - "constant": true, - "id": 403, - "name": "_ERC721_RECEIVED", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12267:53:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 401, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "12267:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783135306237613032", - "id": 402, - "isConstant": false, - 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"typeIdentifier": "t_mapping$_t_address_$_t_struct$_Counter_$296_storage_$", - "typeString": "mapping(address => struct Counters.Counter)" - }, - "valueType": { - "contractScope": null, - "id": 413, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12599:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 421, - "name": "_operatorApprovals", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12697:73:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", - "typeString": "mapping(address => mapping(address => bool))" - }, - "typeName": { - "id": 420, - "keyType": { - "id": 416, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12706:7:1", - 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"nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "27799:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1077, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27799:47:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1078, - "nodeType": "ExpressionStatement", - "src": "27799:47:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1080, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1061, - "src": "27885:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1081, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1063, - "src": "27889:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1079, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "27857:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1082, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27857:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1083, - "nodeType": "ExpressionStatement", - "src": "27857:40:1" - } - ] - }, - "documentation": "@dev Internal function to transfer ownership of a given token ID to another address.\nAs opposed to transferFrom, this imposes no restrictions on msg.sender.\n@param from current owner of the token\n@param to address to receive the ownership of the given token ID\n@param tokenId uint256 ID of the token to be transferred", - "id": 1085, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1064, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1059, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27688:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1058, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27688:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1061, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27702:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1060, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27702:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1063, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27714:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1062, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "27714:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "27687:43:1" - }, - "returnParameters": { - "id": 1065, - "nodeType": "ParameterList", - "parameters": [], - "src": "27740:0:1" - }, - "scope": 1302, - "src": "27665:239:1", - "stateMutability": "nonpayable", - "superFunction": 880, - "visibility": "internal" - }, - { - "body": { - "id": 1108, - "nodeType": "Block", - "src": "28214:143:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1095, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28236:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1096, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28240:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1092, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28224:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1094, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_mint", - "nodeType": "MemberAccess", - "referencedDeclaration": 768, - "src": "28224:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1097, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28224:24:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1098, - "nodeType": "ExpressionStatement", - "src": "28224:24:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1100, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28287:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1101, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28291:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1099, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "28259:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1102, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28259:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1103, - "nodeType": "ExpressionStatement", - "src": "28259:40:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1105, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28342:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1104, - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1195, - "src": "28310:31:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1106, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28310:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1107, - "nodeType": "ExpressionStatement", - "src": "28310:40:1" - } - ] - }, - "documentation": "@dev Internal function to mint a new token.\nReverts if the given token ID already exists.\n@param to address the beneficiary that will own the minted token\n@param tokenId uint256 ID of the token to be minted", - "id": 1109, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_mint", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1090, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1087, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28176:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1086, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28176:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1089, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28188:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1088, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28188:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28175:29:1" - }, - "returnParameters": { - "id": 1091, - "nodeType": "ParameterList", - "parameters": [], - "src": "28214:0:1" - }, - "scope": 1302, - "src": "28161:196:1", - "stateMutability": "nonpayable", - "superFunction": 768, - "visibility": "internal" - }, - { - "body": { - "id": 1138, - "nodeType": "Block", - "src": "28688:308:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1119, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28710:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1120, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28717:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1116, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28698:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1118, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_burn", - "nodeType": "MemberAccess", - "referencedDeclaration": 811, - "src": "28698:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1121, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28698:27:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1122, - "nodeType": "ExpressionStatement", - "src": "28698:27:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1124, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28769:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1125, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28776:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1123, - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "28736:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1126, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28736:48:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1127, - "nodeType": "ExpressionStatement", - "src": "28736:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1132, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1128, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "28903:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1130, - "indexExpression": { - "argumentTypes": null, - "id": 1129, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28921:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "28903:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1131, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "28932:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "28903:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1133, - "nodeType": "ExpressionStatement", - "src": "28903:30:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1135, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28981:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1134, - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1301, - "src": "28944:36:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1136, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28944:45:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1137, - "nodeType": "ExpressionStatement", - "src": "28944:45:1" - } - ] - }, - "documentation": "@dev Internal function to burn a specific token.\nReverts if the token does not exist.\nDeprecated, use _burn(uint256) instead.\n@param owner owner of the token to burn\n@param tokenId uint256 ID of the token being burned", - "id": 1139, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_burn", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1114, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1111, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28647:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1110, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28647:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1113, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28662:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1112, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28662:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28646:32:1" - }, - "returnParameters": { - "id": 1115, - "nodeType": "ParameterList", - "parameters": [], - "src": "28688:0:1" - }, - "scope": 1302, - "src": "28632:364:1", - "stateMutability": "nonpayable", - "superFunction": 811, - "visibility": "internal" - 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"typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "32485:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1259, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32463:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1260, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "32463:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1261, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1265, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32497:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1270, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1267, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "32518:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1269, - "indexExpression": { - "argumentTypes": null, - "id": 1268, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "32534:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32518:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32497:45:1" - }, - { - "assignments": [ - 1272 - ], - "declarations": [ - { - "constant": false, - "id": 1272, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32864:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1271, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32864:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1276, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1273, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32886:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1275, - "indexExpression": { - "argumentTypes": null, - "id": 1274, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1258, - "src": "32897:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32886:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32864:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1281, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1277, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32923:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1279, - "indexExpression": { - "argumentTypes": null, - "id": 1278, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "32934:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "32923:22:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1280, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "32948:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "32923:36:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1282, - "nodeType": "ExpressionStatement", - "src": "32923:36:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1287, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1283, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33027:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1285, - "indexExpression": { - "argumentTypes": null, - "id": 1284, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "33043:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33027:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1286, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "33058:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "33027:41:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1288, - "nodeType": "ExpressionStatement", - "src": "33027:41:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1292, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "33189:19:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1289, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "33189:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1291, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "33189:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1293, - "nodeType": "ExpressionStatement", - "src": "33189:19:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1298, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1294, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33218:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1296, - "indexExpression": { - "argumentTypes": null, - "id": 1295, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "33234:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33218:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1297, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "33245:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "33218:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1299, - "nodeType": "ExpressionStatement", - "src": "33218:28:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's token tracking data structures.\nThis has O(1) time complexity, but alters the order of the _allTokens array.\n@param tokenId uint256 ID of the token to be removed from the tokens list", - "id": 1301, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1255, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1254, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1301, - "src": "32235:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1253, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32235:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "32234:17:1" - }, - "returnParameters": { - "id": 1256, - "nodeType": "ParameterList", - "parameters": [], - "src": "32260:0:1" - }, - "scope": 1302, - "src": "32189:1064:1", - "stateMutability": "nonpayable", - 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May return an empty string.\n@param tokenId uint256 ID of the token to query", - "id": 1396, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "tokenURI", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1380, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1379, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1396, - "src": "35304:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1378, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "35304:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "35303:17:1" - }, - "returnParameters": { - "id": 1383, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1382, - "name": "", - 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"src": "36846:16:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1454, - "name": "ERC721Metadata", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 1448, - "src": "36864:14:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721Metadata_$1448", - "typeString": "contract ERC721Metadata" - } - }, - "id": 1455, - "nodeType": "InheritanceSpecifier", - "src": "36864:14:1" - } - ], - "contractDependencies": [ - 944, - 969, - 23, - 124, - 386, - 1302, - 1323, - 1448 - ], - "contractKind": "contract", - "documentation": "@title Full ERC721 Token\nThis implementation includes all the required and some optional functionality of the ERC721 standard\nMoreover, it includes approve all functionality using operator terminology\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 1468, - "linearizedBaseContracts": [ - 1468, - 1448, - 1323, - 1302, - 969, - 944, - 124, - 386, - 23 - ], - "name": "ERC721Full", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": { - "id": 1466, - "nodeType": "Block", - "src": "36976:64:1", - "statements": [] - }, - "documentation": null, - "id": 1467, - "implemented": true, - "kind": "constructor", - "modifiers": [ - { - "arguments": [ - { - "argumentTypes": null, - "id": 1462, - "name": "name", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1457, - "src": "36962:4:1", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string memory" - } - }, - { - "argumentTypes": null, - "id": 1463, - "name": "symbol", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1459, - "src": "36968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string memory" - } - } - ], - "id": 1464, - "modifierName": { - "argumentTypes": null, - "id": 1461, - "name": "ERC721Metadata", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1448, - "src": "36947:14:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_contract$_ERC721Metadata_$1448_$", - "typeString": "type(contract ERC721Metadata)" - } - }, - "nodeType": "ModifierInvocation", - "src": "36947:28:1" - } - ], - "name": "", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1460, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1457, - "name": "name", - "nodeType": "VariableDeclaration", - "scope": 1467, - "src": "36898:18:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1456, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "36898:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1459, - "name": "symbol", - "nodeType": "VariableDeclaration", - "scope": 1467, - "src": "36918:20:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1458, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "36918:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "36897:42:1" - }, - "returnParameters": { - "id": 1465, - "nodeType": "ParameterList", - "parameters": [], - "src": "36976:0:1" - }, - "scope": 1468, - "src": "36885:155:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "36815:227:1" - } - ], - "src": "61:36982:1" - }, - "compiler": { - "name": "solc", - "version": "0.5.0+commit.1d4f565a.Emscripten.clang" - }, - "networks": {}, - "schemaVersion": "3.0.2", - "updatedAt": "2019-09-05T15:01:08.667Z", - "devdoc": { - "details": "see https://eips.ethereum.org/EIPS/eip-721", - "methods": { - "approve(address,uint256)": { - "details": "Approves another address to transfer the given token ID The zero address indicates there is no approved address. There can only be one approved address per token at a given time. Can only be called by the token owner or an approved operator.", - "params": { - "to": "address to be approved for the given token ID", - "tokenId": "uint256 ID of the token to be approved" - } - }, - "balanceOf(address)": { - "details": "Gets the balance of the specified address.", - "params": { - "owner": "address to query the balance of" - }, - "return": "uint256 representing the amount owned by the passed address" - }, - "getApproved(uint256)": { - "details": "Gets the approved address for a token ID, or zero if no address set Reverts if the token ID does not exist.", - "params": { - "tokenId": "uint256 ID of the token to query the approval of" - }, - "return": "address currently approved for the given token ID" - }, - "isApprovedForAll(address,address)": { - "details": "Tells whether an operator is approved by a given owner.", - "params": { - "operator": "operator address which you want to query the approval of", - "owner": "owner address which you want to query the approval of" - }, - "return": "bool whether the given operator is approved by the given owner" - }, - "name()": { - "details": "Gets the token name.", - "return": "string representing the token name" - }, - "ownerOf(uint256)": { - "details": "Gets the owner of the specified token ID.", - "params": { - "tokenId": "uint256 ID of the token to query the owner of" - }, - "return": "address currently marked as the owner of the given token ID" - }, - "safeTransferFrom(address,address,uint256)": { - "details": "Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise, the transfer is reverted. Requires the msg.sender to be the owner, approved, or operator", - "params": { - "from": "current owner of the token", - "to": "address to receive the ownership of the given token ID", - "tokenId": "uint256 ID of the token to be transferred" - } - }, - "safeTransferFrom(address,address,uint256,bytes)": { - "details": "Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise, the transfer is reverted. Requires the msg.sender to be the owner, approved, or operator", - "params": { - "_data": "bytes data to send along with a safe transfer check", - "from": "current owner of the token", - "to": "address to receive the ownership of the given token ID", - "tokenId": "uint256 ID of the token to be transferred" - } - }, - "setApprovalForAll(address,bool)": { - "details": "Sets or unsets the approval of a given operator An operator is allowed to transfer all tokens of the sender on their behalf.", - "params": { - "approved": "representing the status of the approval to be set", - "to": "operator address to set the approval" - } - }, - "supportsInterface(bytes4)": { - "details": "See `IERC165.supportsInterface`. * Time complexity O(1), guaranteed to always use less than 30 000 gas." - }, - "symbol()": { - "details": "Gets the token symbol.", - "return": "string representing the token symbol" - }, - "tokenByIndex(uint256)": { - "details": "Gets the token ID at a given index of all the tokens in this contract Reverts if the index is greater or equal to the total number of tokens.", - "params": { - "index": "uint256 representing the index to be accessed of the tokens list" - }, - "return": "uint256 token ID at the given index of the tokens list" - }, - "tokenOfOwnerByIndex(address,uint256)": { - "details": "Gets the token ID at a given index of the tokens list of the requested owner.", - "params": { - "index": "uint256 representing the index to be accessed of the requested tokens list", - "owner": "address owning the tokens list to be accessed" - }, - "return": "uint256 token ID at the given index of the tokens list owned by the requested address" - }, - "tokenURI(uint256)": { - "details": "Returns an URI for a given token ID. Throws if the token ID does not exist. May return an empty string.", - "params": { - "tokenId": "uint256 ID of the token to query" - } - }, - "totalSupply()": { - "details": "Gets the total amount of tokens stored by the contract.", - "return": "uint256 representing the total amount of tokens" - }, - "transferFrom(address,address,uint256)": { - "details": "Transfers the ownership of a given token ID to another address. Usage of this method is discouraged, use `safeTransferFrom` whenever possible. Requires the msg.sender to be the owner, approved, or operator.", - "params": { - "from": "current owner of the token", - "to": "address to receive the ownership of the given token ID", - "tokenId": "uint256 ID of the token to be transferred" - } - } - }, - "title": "Full ERC721 Token This implementation includes all the required and some optional functionality of the ERC721 standard Moreover, it includes approve all functionality using operator terminology" - }, - "userdoc": { - "methods": {} - } -} \ No newline at end of file diff --git a/src/abis/ERC721Metadata.json b/src/abis/ERC721Metadata.json deleted file mode 100644 index 88250d7..0000000 --- a/src/abis/ERC721Metadata.json +++ /dev/null @@ -1,37870 +0,0 @@ -{ - "contractName": "ERC721Metadata", - "abi": [ - { - "constant": true, - "inputs": [ - { - "name": "interfaceId", - "type": "bytes4" - } - ], - "name": "supportsInterface", - "outputs": [ - { - "name": "", - "type": "bool" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "getApproved", - "outputs": [ - { - "name": "", - "type": "address" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "approve", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "from", - "type": "address" - }, - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "transferFrom", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "from", - "type": "address" - }, - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "safeTransferFrom", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "ownerOf", - "outputs": [ - { - "name": "", - "type": "address" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "owner", - "type": "address" - } - ], - "name": "balanceOf", - "outputs": [ - { - "name": "", - "type": "uint256" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "to", - "type": "address" - }, - { - "name": "approved", - "type": "bool" - } - ], - "name": "setApprovalForAll", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "from", - "type": "address" - }, - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - }, - { - "name": "_data", - "type": "bytes" - } - ], - "name": "safeTransferFrom", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "owner", - "type": "address" - }, - { - "name": "operator", - "type": "address" - } - ], - "name": "isApprovedForAll", - "outputs": [ - { - "name": "", - "type": "bool" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "inputs": [ - { - "name": "name", - "type": "string" - }, - { - "name": "symbol", - "type": "string" - } - ], - "payable": false, - "stateMutability": "nonpayable", - "type": "constructor" - }, - { - "anonymous": false, - "inputs": [ - { - "indexed": true, - "name": "from", - "type": "address" - }, - { - "indexed": true, - "name": "to", - "type": "address" - }, - { - "indexed": true, - "name": "tokenId", - "type": "uint256" - } - ], - "name": "Transfer", - "type": "event" - }, - { - "anonymous": false, - "inputs": [ - { - "indexed": true, - "name": "owner", - "type": "address" - }, - { - "indexed": true, - "name": "approved", - "type": "address" - }, - { - "indexed": true, - "name": "tokenId", - "type": "uint256" - } - ], - "name": "Approval", - "type": "event" - }, - { - "anonymous": false, - "inputs": [ - { - "indexed": true, - "name": "owner", - "type": "address" - }, - { - "indexed": true, - "name": "operator", - "type": "address" - }, - { - "indexed": false, - "name": "approved", - "type": "bool" - } - ], - "name": "ApprovalForAll", - "type": "event" - }, - { - "constant": true, - "inputs": [], - "name": "name", - "outputs": [ - { - "name": "", - "type": "string" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [], - "name": "symbol", - "outputs": [ - { - "name": "", - "type": "string" - } - 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- "source": "\n// File: @openzeppelin/contracts/introspection/IERC165.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * [EIP](https://eips.ethereum.org/EIPS/eip-165).\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others (`ERC165Checker`).\n *\n * For an implementation, see `ERC165`.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ncontract IERC721 is IERC165 {\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of NFTs in `owner`'s account.\n */\n function balanceOf(address owner) public view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the NFT specified by `tokenId`.\n */\n function ownerOf(uint256 tokenId) public view returns (address owner);\n\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * \n *\n * Requirements:\n * - `from`, `to` cannot be zero.\n * - `tokenId` must be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this\n * NFT by either `approve` or `setApproveForAll`.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public;\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * Requirements:\n * - If the caller is not `from`, it must be approved to move this NFT by\n * either `approve` or `setApproveForAll`.\n */\n function transferFrom(address from, address to, uint256 tokenId) public;\n function approve(address to, uint256 tokenId) public;\n function getApproved(uint256 tokenId) public view returns (address operator);\n\n function setApprovalForAll(address operator, bool _approved) public;\n function isApprovedForAll(address owner, address operator) public view returns (bool);\n\n\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public;\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ncontract IERC721Receiver {\n /**\n * @notice Handle the receipt of an NFT\n * @dev The ERC721 smart contract calls this function on the recipient\n * after a `safeTransfer`. This function MUST return the function selector,\n * otherwise the caller will revert the transaction. The selector to be\n * returned can be obtained as `this.onERC721Received.selector`. This\n * function MAY throw to revert and reject the transfer.\n * Note: the ERC721 contract address is always the message sender.\n * @param operator The address which called `safeTransferFrom` function\n * @param from The address which previously owned the token\n * @param tokenId The NFT identifier which is being transferred\n * @param data Additional data with no specified format\n * @return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n */\n function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data)\n public returns (bytes4);\n}\n\n// File: @openzeppelin/contracts/math/SafeMath.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\n * checks.\n *\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\n * in bugs, because programmers usually assume that an overflow raises an\n * error, which is the standard behavior in high level programming languages.\n * `SafeMath` restores this intuition by reverting the transaction when an\n * operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeMath {\n /**\n * @dev Returns the addition of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `+` operator.\n *\n * Requirements:\n * - Addition cannot overflow.\n */\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting on\n * overflow (when the result is negative).\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n * - Subtraction cannot overflow.\n */\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b <= a, \"SafeMath: subtraction overflow\");\n uint256 c = a - b;\n\n return c;\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `*` operator.\n *\n * Requirements:\n * - Multiplication cannot overflow.\n */\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers. Reverts on\n * division by zero. The result is rounded towards zero.\n *\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n * uses an invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n // Solidity only automatically asserts when dividing by 0\n require(b > 0, \"SafeMath: division by zero\");\n uint256 c = a / b;\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n return c;\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * Reverts when dividing by zero.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b != 0, \"SafeMath: modulo by zero\");\n return a % b;\n }\n}\n\n// File: @openzeppelin/contracts/utils/Address.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Collection of functions related to the address type,\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * This test is non-exhaustive, and there may be false-negatives: during the\n * execution of a contract's constructor, its address will be reported as\n * not containing a contract.\n *\n * > It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies in extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n}\n\n// File: @openzeppelin/contracts/drafts/Counters.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title Counters\n * @author Matt Condon (@shrugs)\n * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number\n * of elements in a mapping, issuing ERC721 ids, or counting request ids.\n *\n * Include with `using Counters for Counters.Counter;`\n * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath\n * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never\n * directly accessed.\n */\nlibrary Counters {\n using SafeMath for uint256;\n\n struct Counter {\n // This variable should never be directly accessed by users of the library: interactions must be restricted to\n // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add\n // this feature: see https://github.com/ethereum/solidity/issues/4637\n uint256 _value; // default: 0\n }\n\n function current(Counter storage counter) internal view returns (uint256) {\n return counter._value;\n }\n\n function increment(Counter storage counter) internal {\n counter._value += 1;\n }\n\n function decrement(Counter storage counter) internal {\n counter._value = counter._value.sub(1);\n }\n}\n\n// File: @openzeppelin/contracts/introspection/ERC165.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Implementation of the `IERC165` interface.\n *\n * Contracts may inherit from this and call `_registerInterface` to declare\n * their support of an interface.\n */\ncontract ERC165 is IERC165 {\n /*\n * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7\n */\n bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;\n\n /**\n * @dev Mapping of interface ids to whether or not it's supported.\n */\n mapping(bytes4 => bool) private _supportedInterfaces;\n\n constructor () internal {\n // Derived contracts need only register support for their own interfaces,\n // we register support for ERC165 itself here\n _registerInterface(_INTERFACE_ID_ERC165);\n }\n\n /**\n * @dev See `IERC165.supportsInterface`.\n *\n * Time complexity O(1), guaranteed to always use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool) {\n return _supportedInterfaces[interfaceId];\n }\n\n /**\n * @dev Registers the contract as an implementer of the interface defined by\n * `interfaceId`. Support of the actual ERC165 interface is automatic and\n * registering its interface id is not required.\n *\n * See `IERC165.supportsInterface`.\n *\n * Requirements:\n *\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).\n */\n function _registerInterface(bytes4 interfaceId) internal {\n require(interfaceId != 0xffffffff, \"ERC165: invalid interface id\");\n _supportedInterfaces[interfaceId] = true;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n\n\n\n/**\n * @title ERC721 Non-Fungible Token Standard basic implementation\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721 is ERC165, IERC721 {\n using SafeMath for uint256;\n using Address for address;\n using Counters for Counters.Counter;\n\n // Equals to `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`\n bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;\n\n // Mapping from token ID to owner\n mapping (uint256 => address) private _tokenOwner;\n\n // Mapping from token ID to approved address\n mapping (uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to number of owned token\n mapping (address => Counters.Counter) private _ownedTokensCount;\n\n // Mapping from owner to operator approvals\n mapping (address => mapping (address => bool)) private _operatorApprovals;\n\n /*\n * bytes4(keccak256('balanceOf(address)')) == 0x70a08231\n * bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e\n * bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3\n * bytes4(keccak256('getApproved(uint256)')) == 0x081812fc\n * bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465\n * bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c\n * bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd\n * bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e\n * bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde\n *\n * => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^\n * 0xa22cb465 ^ 0xe985e9c ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd\n */\n bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;\n\n constructor () public {\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721);\n }\n\n /**\n * @dev Gets the balance of the specified address.\n * @param owner address to query the balance of\n * @return uint256 representing the amount owned by the passed address\n */\n function balanceOf(address owner) public view returns (uint256) {\n require(owner != address(0), \"ERC721: balance query for the zero address\");\n\n return _ownedTokensCount[owner].current();\n }\n\n /**\n * @dev Gets the owner of the specified token ID.\n * @param tokenId uint256 ID of the token to query the owner of\n * @return address currently marked as the owner of the given token ID\n */\n function ownerOf(uint256 tokenId) public view returns (address) {\n address owner = _tokenOwner[tokenId];\n require(owner != address(0), \"ERC721: owner query for nonexistent token\");\n\n return owner;\n }\n\n /**\n * @dev Approves another address to transfer the given token ID\n * The zero address indicates there is no approved address.\n * There can only be one approved address per token at a given time.\n * Can only be called by the token owner or an approved operator.\n * @param to address to be approved for the given token ID\n * @param tokenId uint256 ID of the token to be approved\n */\n function approve(address to, uint256 tokenId) public {\n address owner = ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(msg.sender == owner || isApprovedForAll(owner, msg.sender),\n \"ERC721: approve caller is not owner nor approved for all\"\n );\n\n _tokenApprovals[tokenId] = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Gets the approved address for a token ID, or zero if no address set\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to query the approval of\n * @return address currently approved for the given token ID\n */\n function getApproved(uint256 tokenId) public view returns (address) {\n require(_exists(tokenId), \"ERC721: approved query for nonexistent token\");\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev Sets or unsets the approval of a given operator\n * An operator is allowed to transfer all tokens of the sender on their behalf.\n * @param to operator address to set the approval\n * @param approved representing the status of the approval to be set\n */\n function setApprovalForAll(address to, bool approved) public {\n require(to != msg.sender, \"ERC721: approve to caller\");\n\n _operatorApprovals[msg.sender][to] = approved;\n emit ApprovalForAll(msg.sender, to, approved);\n }\n\n /**\n * @dev Tells whether an operator is approved by a given owner.\n * @param owner owner address which you want to query the approval of\n * @param operator operator address which you want to query the approval of\n * @return bool whether the given operator is approved by the given owner\n */\n function isApprovedForAll(address owner, address operator) public view returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev Transfers the ownership of a given token ID to another address.\n * Usage of this method is discouraged, use `safeTransferFrom` whenever possible.\n * Requires the msg.sender to be the owner, approved, or operator.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function transferFrom(address from, address to, uint256 tokenId) public {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(msg.sender, tokenId), \"ERC721: transfer caller is not owner nor approved\");\n\n _transferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes data to send along with a safe transfer check\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public {\n transferFrom(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, _data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns whether the specified token exists.\n * @param tokenId uint256 ID of the token to query the existence of\n * @return bool whether the token exists\n */\n function _exists(uint256 tokenId) internal view returns (bool) {\n address owner = _tokenOwner[tokenId];\n return owner != address(0);\n }\n\n /**\n * @dev Returns whether the given spender can transfer a given token ID.\n * @param spender address of the spender to query\n * @param tokenId uint256 ID of the token to be transferred\n * @return bool whether the msg.sender is approved for the given token ID,\n * is an operator of the owner, or is the owner of the token\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view returns (bool) {\n require(_exists(tokenId), \"ERC721: operator query for nonexistent token\");\n address owner = ownerOf(tokenId);\n return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to The address that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _tokenOwner[tokenId] = to;\n _ownedTokensCount[to].increment();\n\n emit Transfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n require(ownerOf(tokenId) == owner, \"ERC721: burn of token that is not own\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[owner].decrement();\n _tokenOwner[tokenId] = address(0);\n\n emit Transfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(uint256 tokenId) internal {\n _burn(ownerOf(tokenId), tokenId);\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n require(ownerOf(tokenId) == from, \"ERC721: transfer of token that is not own\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[from].decrement();\n _ownedTokensCount[to].increment();\n\n _tokenOwner[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n }\n\n /**\n * @dev Internal function to invoke `onERC721Received` on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * This function is deprecated.\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data)\n internal returns (bool)\n {\n if (!to.isContract()) {\n return true;\n }\n\n bytes4 retval = IERC721Receiver(to).onERC721Received(msg.sender, from, tokenId, _data);\n return (retval == _ERC721_RECEIVED);\n }\n\n /**\n * @dev Private function to clear current approval of a given token ID.\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _clearApproval(uint256 tokenId) private {\n if (_tokenApprovals[tokenId] != address(0)) {\n _tokenApprovals[tokenId] = address(0);\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Enumerable is IERC721 {\n function totalSupply() public view returns (uint256);\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256 tokenId);\n\n function tokenByIndex(uint256 index) public view returns (uint256);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title ERC-721 Non-Fungible Token with optional enumeration extension logic\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Enumerable is ERC165, ERC721, IERC721Enumerable {\n // Mapping from owner to list of owned token IDs\n mapping(address => uint256[]) private _ownedTokens;\n\n // Mapping from token ID to index of the owner tokens list\n mapping(uint256 => uint256) private _ownedTokensIndex;\n\n // Array with all token ids, used for enumeration\n uint256[] private _allTokens;\n\n // Mapping from token id to position in the allTokens array\n mapping(uint256 => uint256) private _allTokensIndex;\n\n /*\n * bytes4(keccak256('totalSupply()')) == 0x18160ddd\n * bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59\n * bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7\n *\n * => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63\n */\n bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;\n\n /**\n * @dev Constructor function.\n */\n constructor () public {\n // register the supported interface to conform to ERC721Enumerable via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);\n }\n\n /**\n * @dev Gets the token ID at a given index of the tokens list of the requested owner.\n * @param owner address owning the tokens list to be accessed\n * @param index uint256 representing the index to be accessed of the requested tokens list\n * @return uint256 token ID at the given index of the tokens list owned by the requested address\n */\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) {\n require(index < balanceOf(owner), \"ERC721Enumerable: owner index out of bounds\");\n return _ownedTokens[owner][index];\n }\n\n /**\n * @dev Gets the total amount of tokens stored by the contract.\n * @return uint256 representing the total amount of tokens\n */\n function totalSupply() public view returns (uint256) {\n return _allTokens.length;\n }\n\n /**\n * @dev Gets the token ID at a given index of all the tokens in this contract\n * Reverts if the index is greater or equal to the total number of tokens.\n * @param index uint256 representing the index to be accessed of the tokens list\n * @return uint256 token ID at the given index of the tokens list\n */\n function tokenByIndex(uint256 index) public view returns (uint256) {\n require(index < totalSupply(), \"ERC721Enumerable: global index out of bounds\");\n return _allTokens[index];\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n super._transferFrom(from, to, tokenId);\n\n _removeTokenFromOwnerEnumeration(from, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to address the beneficiary that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n super._mint(to, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n\n _addTokenToAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n _removeTokenFromOwnerEnumeration(owner, tokenId);\n // Since tokenId will be deleted, we can clear its slot in _ownedTokensIndex to trigger a gas refund\n _ownedTokensIndex[tokenId] = 0;\n\n _removeTokenFromAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Gets the list of token IDs of the requested owner.\n * @param owner address owning the tokens\n * @return uint256[] List of token IDs owned by the requested address\n */\n function _tokensOfOwner(address owner) internal view returns (uint256[] storage) {\n return _ownedTokens[owner];\n }\n\n /**\n * @dev Private function to add a token to this extension's ownership-tracking data structures.\n * @param to address representing the new owner of the given token ID\n * @param tokenId uint256 ID of the token to be added to the tokens list of the given address\n */\n function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {\n _ownedTokensIndex[tokenId] = _ownedTokens[to].length;\n _ownedTokens[to].push(tokenId);\n }\n\n /**\n * @dev Private function to add a token to this extension's token tracking data structures.\n * @param tokenId uint256 ID of the token to be added to the tokens list\n */\n function _addTokenToAllTokensEnumeration(uint256 tokenId) private {\n _allTokensIndex[tokenId] = _allTokens.length;\n _allTokens.push(tokenId);\n }\n\n /**\n * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\n * while the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\n * gas optimizations e.g. when performing a transfer operation (avoiding double writes).\n * This has O(1) time complexity, but alters the order of the _ownedTokens array.\n * @param from address representing the previous owner of the given token ID\n * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address\n */\n function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {\n // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _ownedTokens[from].length.sub(1);\n uint256 tokenIndex = _ownedTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary\n if (tokenIndex != lastTokenIndex) {\n uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];\n\n _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n }\n\n // This also deletes the contents at the last position of the array\n _ownedTokens[from].length--;\n\n // Note that _ownedTokensIndex[tokenId] hasn't been cleared: it still points to the old slot (now occupied by\n // lastTokenId, or just over the end of the array if the token was the last one).\n }\n\n /**\n * @dev Private function to remove a token from this extension's token tracking data structures.\n * This has O(1) time complexity, but alters the order of the _allTokens array.\n * @param tokenId uint256 ID of the token to be removed from the tokens list\n */\n function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {\n // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _allTokens.length.sub(1);\n uint256 tokenIndex = _allTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so\n // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding\n // an 'if' statement (like in _removeTokenFromOwnerEnumeration)\n uint256 lastTokenId = _allTokens[lastTokenIndex];\n\n _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n\n // This also deletes the contents at the last position of the array\n _allTokens.length--;\n _allTokensIndex[tokenId] = 0;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Metadata is IERC721 {\n function name() external view returns (string memory);\n function symbol() external view returns (string memory);\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n\n\ncontract ERC721Metadata is ERC165, ERC721, IERC721Metadata {\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Optional mapping for token URIs\n mapping(uint256 => string) private _tokenURIs;\n\n /*\n * bytes4(keccak256('name()')) == 0x06fdde03\n * bytes4(keccak256('symbol()')) == 0x95d89b41\n * bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd\n *\n * => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f\n */\n bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;\n\n /**\n * @dev Constructor function\n */\n constructor (string memory name, string memory symbol) public {\n _name = name;\n _symbol = symbol;\n\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_METADATA);\n }\n\n /**\n * @dev Gets the token name.\n * @return string representing the token name\n */\n function name() external view returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Gets the token symbol.\n * @return string representing the token symbol\n */\n function symbol() external view returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns an URI for a given token ID.\n * Throws if the token ID does not exist. May return an empty string.\n * @param tokenId uint256 ID of the token to query\n */\n function tokenURI(uint256 tokenId) external view returns (string memory) {\n require(_exists(tokenId), \"ERC721Metadata: URI query for nonexistent token\");\n return _tokenURIs[tokenId];\n }\n\n /**\n * @dev Internal function to set the token URI for a given token.\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to set its URI\n * @param uri string URI to assign\n */\n function _setTokenURI(uint256 tokenId, string memory uri) internal {\n require(_exists(tokenId), \"ERC721Metadata: URI set of nonexistent token\");\n _tokenURIs[tokenId] = uri;\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned by the msg.sender\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n // Clear metadata (if any)\n if (bytes(_tokenURIs[tokenId]).length != 0) {\n delete _tokenURIs[tokenId];\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Full.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title Full ERC721 Token\n * This implementation includes all the required and some optional functionality of the ERC721 standard\n * Moreover, it includes approve all functionality using operator terminology\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Full is ERC721, ERC721Enumerable, ERC721Metadata {\n constructor (string memory name, string memory symbol) public ERC721Metadata(name, symbol) {\n // solhint-disable-previous-line no-empty-blocks\n }\n}\n", - "sourcePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "ast": { - "absolutePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "exportedSymbols": { - "Address": [ - 289 - ], - "Counters": [ - 336 - ], - "ERC165": [ - 386 - ], - "ERC721": [ - 944 - ], - "ERC721Enumerable": [ - 1302 - ], - "ERC721Full": [ - 1468 - ], - "ERC721Metadata": [ - 1448 - ], - "IERC165": [ - 23 - ], - "IERC721": [ - 124 - ], - "IERC721Enumerable": [ - 969 - ], - "IERC721Metadata": [ - 1323 - ], - "IERC721Receiver": [ - 139 - ], - "SafeMath": [ - 271 - ] - }, - "id": 1469, - "nodeType": "SourceUnit", - "nodes": [ - { - "id": 15, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "61:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "interface", - "documentation": "@dev Interface of the ERC165 standard, as defined in the\n[EIP](https://eips.ethereum.org/EIPS/eip-165).\n * Implementers can declare support of contract interfaces, which can then be\nqueried by others (`ERC165Checker`).\n * For an implementation, see `ERC165`.", - "fullyImplemented": false, - "id": 23, - "linearizedBaseContracts": [ - 23 - ], - "name": "IERC165", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@dev Returns true if this contract implements the interface defined by\n`interfaceId`. 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This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. This\nfunction MAY throw to revert and reject the transfer.\nNote: the ERC721 contract address is always the message sender.\n@param operator The address which called `safeTransferFrom` function\n@param from The address which previously owned the token\n@param tokenId The NFT identifier which is being transferred\n@param data Additional data with no specified format\n@return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`", - "id": 138, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "onERC721Received", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 134, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 127, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3960:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 126, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "3960:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 129, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3978:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 128, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "3978:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 131, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3992:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 130, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "3992:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 133, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "4009:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 132, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "4009:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "3959:68:1" - }, - "returnParameters": { - "id": 137, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 136, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "4048:6:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 135, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "4048:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "4047:8:1" - }, - "scope": 139, - "src": "3934:122:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "3045:1013:1" - }, - { - "id": 140, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "4112:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "library", - "documentation": "@dev Wrappers over Solidity's arithmetic operations with added overflow\nchecks.\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\nin bugs, because programmers usually assume that an overflow raises an\nerror, which is the standard behavior in high level programming languages.\n`SafeMath` restores this intuition by reverting the transaction when an\noperation overflows.\n * Using this library instead of the unchecked operations eliminates an entire\nclass of bugs, so it's recommended to use it always.", - "fullyImplemented": true, - "id": 271, - "linearizedBaseContracts": [ - 271 - ], - "name": "SafeMath", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": { - "id": 164, - "nodeType": "Block", - "src": "5013:109:1", - "statements": [ - { - "assignments": [ - 150 - ], - "declarations": [ - { - "constant": false, - "id": 150, - "name": "c", - "nodeType": "VariableDeclaration", - "scope": 164, - "src": "5023:9:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 149, - 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"names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - 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Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - 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"typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "29224:15:1" - }, - "returnParameters": { - "id": 1146, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1145, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 1152, - "src": "29263:17:1", - "stateVariable": false, - "storageLocation": "storage", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - }, - "typeName": { - "baseType": { - "id": 1143, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "29263:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1144, - "length": null, - "nodeType": "ArrayTypeName", - "src": "29263:9:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - } - }, - "value": null, - "visibility": "internal" - 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"src": "30073:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1184, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30100:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1185, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30100:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "30073:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1187, - "nodeType": "ExpressionStatement", - "src": "30073:44:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1191, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1178, - "src": "30143:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1188, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30127:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1190, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "push", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30127:15:1", - "typeDescriptions": { - "typeIdentifier": "t_function_arraypush_nonpayable$_t_uint256_$returns$_t_uint256_$", - "typeString": "function (uint256) returns (uint256)" - } - }, - "id": 1192, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "30127:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1193, - "nodeType": "ExpressionStatement", - "src": "30127:24:1" - } - ] - }, - "documentation": "@dev Private function to add a token to this extension's token tracking data structures.\n@param tokenId uint256 ID of the token to be added to the tokens list", - "id": 1195, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1179, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1178, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1195, - "src": "30038:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1177, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30038:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30037:17:1" - }, - "returnParameters": { - "id": 1180, - "nodeType": "ParameterList", - "parameters": [], - "src": "30063:0:1" - }, - "scope": 1302, - "src": "29997:161:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1251, - "nodeType": "Block", - "src": "30854:1047:1", - "statements": [ - { - "assignments": [ - 1203 - ], - "declarations": [ - { - "constant": false, - "id": 1203, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1251, - "src": "31035:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1202, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31035:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1211, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1209, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "31090:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1204, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31060:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1206, - "indexExpression": { - "argumentTypes": null, - "id": 1205, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31073:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31060:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1207, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31060:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1208, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "31060:29:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1210, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "31060:32:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31035:57:1" - }, - { - "assignments": [ - 1213 - ], - "declarations": [ - { - "constant": false, - "id": 1213, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1251, - "src": "31102:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1212, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31102:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1217, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1214, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31123:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1216, - "indexExpression": { - "argumentTypes": null, - "id": 1215, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1199, - "src": "31141:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31123:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31102:47:1" - }, - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "id": 1220, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 1218, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31253:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "id": 1219, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31267:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31253:28:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 1244, - "nodeType": "IfStatement", - "src": "31249:323:1", - "trueBody": { - "id": 1243, - "nodeType": "Block", - "src": "31283:289:1", - "statements": [ - { - "assignments": [ - 1222 - ], - "declarations": [ - { - "constant": false, - "id": 1222, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1243, - "src": "31297:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1221, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31297:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1228, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1223, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31319:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1225, - "indexExpression": { - "argumentTypes": null, - "id": 1224, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31332:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1227, - "indexExpression": { - "argumentTypes": null, - "id": 1226, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31338:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:34:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - 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"isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - 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"typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 47, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "1257:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1207:64:1" - }, - "src": "1187:85:1" - }, - { - "body": null, - "documentation": "@dev Returns the number of NFTs in `owner`'s account.", - "id": 57, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "balanceOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 53, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 52, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 57, - "src": "1374:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 51, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1374:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1373:15:1" - }, - "returnParameters": { - "id": 56, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 55, - "name": "balance", - "nodeType": "VariableDeclaration", - "scope": 57, - "src": "1410:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 54, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1410:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1409:17:1" - }, - "scope": 124, - "src": "1355:72:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Returns the owner of the NFT specified by `tokenId`.", - "id": 64, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "ownerOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 60, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 59, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1531:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 58, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1531:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1530:17:1" - }, - "returnParameters": { - "id": 63, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 62, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1569:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 61, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1569:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1568:15:1" - }, - "scope": 124, - "src": "1514:70:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * \n * Requirements:\n- `from`, `to` cannot be zero.\n- `tokenId` must be owned by `from`.\n- If the caller is not `from`, it must be have been allowed to move this\nNFT by either `approve` or `setApproveForAll`.", - "id": 73, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 71, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 66, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "1992:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 65, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1992:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 68, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2006:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 67, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2006:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 70, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2018:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 69, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2018:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1991:43:1" - }, - "returnParameters": { - "id": 72, - "nodeType": "ParameterList", - "parameters": [], - "src": "2041:0:1" - }, - "scope": 124, - "src": "1966:76:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * Requirements:\n- If the caller is not `from`, it must be approved to move this NFT by\neither `approve` or `setApproveForAll`.", - "id": 82, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 80, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 75, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2339:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 74, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2339:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 77, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2353:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 76, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2353:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 79, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2365:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 78, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2365:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2338:43:1" - }, - "returnParameters": { - "id": 81, - "nodeType": "ParameterList", - "parameters": [], - "src": "2388:0:1" - }, - "scope": 124, - "src": "2317:72:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 89, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "approve", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 87, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 84, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2411:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 83, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2411:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 86, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2423:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 85, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2423:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2410:29:1" - }, - "returnParameters": { - "id": 88, - "nodeType": "ParameterList", - "parameters": [], - "src": "2446:0:1" - }, - "scope": 124, - "src": "2394:53:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 96, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "getApproved", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 92, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 91, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2473:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 90, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2473:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2472:17:1" - }, - "returnParameters": { - "id": 95, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 94, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2511:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 93, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2511:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2510:18:1" - }, - "scope": 124, - "src": "2452:77:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 103, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "setApprovalForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 101, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 98, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2562:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 97, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2562:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 100, - "name": "_approved", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2580:14:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 99, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2580:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2561:34:1" - }, - "returnParameters": { - "id": 102, - "nodeType": "ParameterList", - "parameters": [], - "src": "2602:0:1" - }, - "scope": 124, - "src": "2535:68:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 112, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "isApprovedForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 108, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 105, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2634:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 104, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2634:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 107, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2649:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 106, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2649:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2633:33:1" - }, - "returnParameters": { - "id": 111, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 110, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2688:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 109, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2688:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2687:6:1" - }, - "scope": 124, - "src": "2608:86:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 123, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 121, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 114, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2727:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 113, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2727:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 116, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2741:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 115, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2741:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 118, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2753:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 117, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2753:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 120, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2770:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 119, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "2770:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2726:62:1" - }, - "returnParameters": { - "id": 122, - "nodeType": "ParameterList", - "parameters": [], - "src": "2795:0:1" - }, - "scope": 124, - "src": "2701:95:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "972:1826:1" - }, - { - "id": 125, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "2867:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "contract", - "documentation": "@title ERC721 token receiver interface\n@dev Interface for any contract that wants to support safeTransfers\nfrom ERC721 asset contracts.", - "fullyImplemented": false, - "id": 139, - "linearizedBaseContracts": [ - 139 - ], - "name": "IERC721Receiver", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@notice Handle the receipt of an NFT\n@dev The ERC721 smart contract calls this function on the recipient\nafter a `safeTransfer`. This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. 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"names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - 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Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - }, - "returnParameters": { - "id": 370, - "nodeType": "ParameterList", - "parameters": [], - "src": "11598:0:1" - }, - "scope": 386, - "src": "11541:190:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "10321:1412:1" - }, - { - "id": 387, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "11793:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 388, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "11968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 389, - "nodeType": "InheritanceSpecifier", - "src": "11968:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 390, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "11976:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 391, - "nodeType": "InheritanceSpecifier", - "src": "11976:7:1" - } - ], - "contractDependencies": [ - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 944, - "linearizedBaseContracts": [ - 944, - 124, - 386, - 23 - ], - "name": "ERC721", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 394, - "libraryName": { - "contractScope": null, - "id": 392, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "11996:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "11990:27:1", - "typeName": { - "id": 393, - "name": "uint256", - 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"typeString": "library Counters" - } - }, - "nodeType": "UsingForDirective", - "src": "12053:36:1", - "typeName": { - "contractScope": null, - "id": 399, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12072:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - { - "constant": true, - "id": 403, - "name": "_ERC721_RECEIVED", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12267:53:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 401, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "12267:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783135306237613032", - "id": 402, - "isConstant": false, - 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"typeIdentifier": "t_mapping$_t_address_$_t_struct$_Counter_$296_storage_$", - "typeString": "mapping(address => struct Counters.Counter)" - }, - "valueType": { - "contractScope": null, - "id": 413, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12599:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 421, - "name": "_operatorApprovals", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12697:73:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", - "typeString": "mapping(address => mapping(address => bool))" - }, - "typeName": { - "id": 420, - "keyType": { - "id": 416, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12706:7:1", - 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"nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "27799:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1077, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27799:47:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1078, - "nodeType": "ExpressionStatement", - "src": "27799:47:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1080, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1061, - "src": "27885:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1081, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1063, - "src": "27889:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1079, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "27857:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1082, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27857:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1083, - "nodeType": "ExpressionStatement", - "src": "27857:40:1" - } - ] - }, - "documentation": "@dev Internal function to transfer ownership of a given token ID to another address.\nAs opposed to transferFrom, this imposes no restrictions on msg.sender.\n@param from current owner of the token\n@param to address to receive the ownership of the given token ID\n@param tokenId uint256 ID of the token to be transferred", - "id": 1085, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1064, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1059, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27688:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1058, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27688:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1061, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27702:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1060, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27702:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1063, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27714:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1062, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "27714:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "27687:43:1" - }, - "returnParameters": { - "id": 1065, - "nodeType": "ParameterList", - "parameters": [], - "src": "27740:0:1" - }, - "scope": 1302, - "src": "27665:239:1", - "stateMutability": "nonpayable", - "superFunction": 880, - "visibility": "internal" - }, - { - "body": { - "id": 1108, - "nodeType": "Block", - "src": "28214:143:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1095, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28236:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1096, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28240:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1092, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28224:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1094, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_mint", - "nodeType": "MemberAccess", - "referencedDeclaration": 768, - "src": "28224:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1097, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28224:24:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1098, - "nodeType": "ExpressionStatement", - "src": "28224:24:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1100, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28287:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1101, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28291:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1099, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "28259:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1102, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28259:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1103, - "nodeType": "ExpressionStatement", - "src": "28259:40:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1105, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28342:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1104, - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1195, - "src": "28310:31:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1106, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28310:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1107, - "nodeType": "ExpressionStatement", - "src": "28310:40:1" - } - ] - }, - "documentation": "@dev Internal function to mint a new token.\nReverts if the given token ID already exists.\n@param to address the beneficiary that will own the minted token\n@param tokenId uint256 ID of the token to be minted", - "id": 1109, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_mint", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1090, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1087, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28176:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1086, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28176:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1089, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28188:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1088, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28188:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28175:29:1" - }, - "returnParameters": { - "id": 1091, - "nodeType": "ParameterList", - "parameters": [], - "src": "28214:0:1" - }, - "scope": 1302, - "src": "28161:196:1", - "stateMutability": "nonpayable", - "superFunction": 768, - "visibility": "internal" - }, - { - "body": { - "id": 1138, - "nodeType": "Block", - "src": "28688:308:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1119, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28710:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1120, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28717:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1116, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28698:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1118, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_burn", - "nodeType": "MemberAccess", - "referencedDeclaration": 811, - "src": "28698:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1121, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28698:27:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1122, - "nodeType": "ExpressionStatement", - "src": "28698:27:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1124, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28769:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1125, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28776:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1123, - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "28736:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1126, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28736:48:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1127, - "nodeType": "ExpressionStatement", - "src": "28736:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1132, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1128, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "28903:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1130, - "indexExpression": { - "argumentTypes": null, - "id": 1129, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28921:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "28903:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1131, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "28932:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "28903:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1133, - "nodeType": "ExpressionStatement", - "src": "28903:30:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1135, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28981:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1134, - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1301, - "src": "28944:36:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1136, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28944:45:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1137, - "nodeType": "ExpressionStatement", - "src": "28944:45:1" - } - ] - }, - "documentation": "@dev Internal function to burn a specific token.\nReverts if the token does not exist.\nDeprecated, use _burn(uint256) instead.\n@param owner owner of the token to burn\n@param tokenId uint256 ID of the token being burned", - "id": 1139, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_burn", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1114, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1111, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28647:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1110, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28647:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1113, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28662:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1112, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28662:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28646:32:1" - }, - "returnParameters": { - "id": 1115, - "nodeType": "ParameterList", - "parameters": [], - "src": "28688:0:1" - }, - "scope": 1302, - "src": "28632:364:1", - "stateMutability": "nonpayable", - "superFunction": 811, - "visibility": "internal" - 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"typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "32485:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1259, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32463:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1260, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "32463:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1261, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1265, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32497:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1270, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1267, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "32518:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1269, - "indexExpression": { - "argumentTypes": null, - "id": 1268, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "32534:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32518:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32497:45:1" - }, - { - "assignments": [ - 1272 - ], - "declarations": [ - { - "constant": false, - "id": 1272, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32864:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1271, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32864:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1276, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1273, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32886:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1275, - "indexExpression": { - "argumentTypes": null, - "id": 1274, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1258, - "src": "32897:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32886:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32864:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1281, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1277, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32923:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1279, - "indexExpression": { - "argumentTypes": null, - "id": 1278, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "32934:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "32923:22:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1280, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "32948:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "32923:36:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1282, - "nodeType": "ExpressionStatement", - "src": "32923:36:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1287, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1283, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33027:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1285, - "indexExpression": { - "argumentTypes": null, - "id": 1284, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "33043:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33027:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1286, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "33058:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "33027:41:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1288, - "nodeType": "ExpressionStatement", - "src": "33027:41:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1292, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "33189:19:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1289, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "33189:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1291, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "33189:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1293, - "nodeType": "ExpressionStatement", - "src": "33189:19:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1298, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1294, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33218:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1296, - "indexExpression": { - "argumentTypes": null, - "id": 1295, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "33234:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33218:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1297, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "33245:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "33218:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1299, - "nodeType": "ExpressionStatement", - "src": "33218:28:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's token tracking data structures.\nThis has O(1) time complexity, but alters the order of the _allTokens array.\n@param tokenId uint256 ID of the token to be removed from the tokens list", - "id": 1301, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1255, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1254, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1301, - "src": "32235:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1253, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32235:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "32234:17:1" - }, - "returnParameters": { - "id": 1256, - "nodeType": "ParameterList", - "parameters": [], - "src": "32260:0:1" - }, - "scope": 1302, - "src": "32189:1064:1", - "stateMutability": "nonpayable", - 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May return an empty string.\n@param tokenId uint256 ID of the token to query", - "id": 1396, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "tokenURI", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1380, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1379, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1396, - "src": "35304:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1378, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "35304:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "35303:17:1" - }, - "returnParameters": { - "id": 1383, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1382, - "name": "", - 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"src": "36846:16:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1454, - "name": "ERC721Metadata", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 1448, - "src": "36864:14:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721Metadata_$1448", - "typeString": "contract ERC721Metadata" - } - }, - "id": 1455, - "nodeType": "InheritanceSpecifier", - "src": "36864:14:1" - } - ], - "contractDependencies": [ - 944, - 969, - 23, - 124, - 386, - 1302, - 1323, - 1448 - ], - "contractKind": "contract", - "documentation": "@title Full ERC721 Token\nThis implementation includes all the required and some optional functionality of the ERC721 standard\nMoreover, it includes approve all functionality using operator terminology\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 1468, - "linearizedBaseContracts": [ - 1468, - 1448, - 1323, - 1302, - 969, - 944, - 124, - 386, - 23 - ], - "name": "ERC721Full", - 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"nodeType": "VariableDeclaration", - "scope": 1467, - "src": "36918:20:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1458, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "36918:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "36897:42:1" - }, - "returnParameters": { - "id": 1465, - "nodeType": "ParameterList", - "parameters": [], - "src": "36976:0:1" - }, - "scope": 1468, - "src": "36885:155:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "36815:227:1" - } - ], - "src": "61:36982:1" - }, - "compiler": { - "name": "solc", - "version": "0.5.0+commit.1d4f565a.Emscripten.clang" - }, - "networks": {}, - "schemaVersion": "3.0.2", - "updatedAt": "2019-09-05T15:01:08.689Z", - "devdoc": { - "methods": { - "approve(address,uint256)": { - "details": "Approves another address to transfer the given token ID The zero address indicates there is no approved address. There can only be one approved address per token at a given time. Can only be called by the token owner or an approved operator.", - "params": { - "to": "address to be approved for the given token ID", - "tokenId": "uint256 ID of the token to be approved" - } - }, - "balanceOf(address)": { - "details": "Gets the balance of the specified address.", - "params": { - "owner": "address to query the balance of" - }, - "return": "uint256 representing the amount owned by the passed address" - }, - "constructor": { - "details": "Constructor function" - }, - "getApproved(uint256)": { - "details": "Gets the approved address for a token ID, or zero if no address set Reverts if the token ID does not exist.", - "params": { - "tokenId": "uint256 ID of the token to query the approval of" - }, - "return": "address currently approved for the given token ID" - }, - "isApprovedForAll(address,address)": { - "details": "Tells whether an operator is approved by a given owner.", - "params": { - "operator": "operator address which you want to query the approval of", - "owner": "owner address which you want to query the approval of" - }, - "return": "bool whether the given operator is approved by the given owner" - }, - "name()": { - "details": "Gets the token name.", - "return": "string representing the token name" - }, - "ownerOf(uint256)": { - "details": "Gets the owner of the specified token ID.", - "params": { - "tokenId": "uint256 ID of the token to query the owner of" - }, - "return": "address currently marked as the owner of the given token ID" - }, - "safeTransferFrom(address,address,uint256)": { - "details": "Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise, the transfer is reverted. Requires the msg.sender to be the owner, approved, or operator", - "params": { - "from": "current owner of the token", - "to": "address to receive the ownership of the given token ID", - "tokenId": "uint256 ID of the token to be transferred" - } - }, - "safeTransferFrom(address,address,uint256,bytes)": { - "details": "Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise, the transfer is reverted. Requires the msg.sender to be the owner, approved, or operator", - "params": { - "_data": "bytes data to send along with a safe transfer check", - "from": "current owner of the token", - "to": "address to receive the ownership of the given token ID", - "tokenId": "uint256 ID of the token to be transferred" - } - }, - "setApprovalForAll(address,bool)": { - "details": "Sets or unsets the approval of a given operator An operator is allowed to transfer all tokens of the sender on their behalf.", - "params": { - "approved": "representing the status of the approval to be set", - "to": "operator address to set the approval" - } - }, - "supportsInterface(bytes4)": { - "details": "See `IERC165.supportsInterface`. * Time complexity O(1), guaranteed to always use less than 30 000 gas." - }, - "symbol()": { - "details": "Gets the token symbol.", - "return": "string representing the token symbol" - }, - "tokenURI(uint256)": { - "details": "Returns an URI for a given token ID. Throws if the token ID does not exist. May return an empty string.", - "params": { - "tokenId": "uint256 ID of the token to query" - } - }, - "transferFrom(address,address,uint256)": { - "details": "Transfers the ownership of a given token ID to another address. Usage of this method is discouraged, use `safeTransferFrom` whenever possible. Requires the msg.sender to be the owner, approved, or operator.", - "params": { - "from": "current owner of the token", - "to": "address to receive the ownership of the given token ID", - "tokenId": "uint256 ID of the token to be transferred" - } - } - } - }, - "userdoc": { - "methods": {} - } -} \ No newline at end of file diff --git a/src/abis/IERC165.json b/src/abis/IERC165.json deleted file mode 100644 index 69611d8..0000000 --- a/src/abis/IERC165.json +++ /dev/null @@ -1,37472 +0,0 @@ -{ - "contractName": "IERC165", - "abi": [ - { - "constant": true, - "inputs": [ - { - "name": "interfaceId", - "type": "bytes4" - } - ], - "name": "supportsInterface", - "outputs": [ - { - "name": "", - "type": "bool" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - } - ], - "bytecode": "0x", - "deployedBytecode": "0x", - "sourceMap": "", - "deployedSourceMap": "", - "source": "\n// File: @openzeppelin/contracts/introspection/IERC165.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * [EIP](https://eips.ethereum.org/EIPS/eip-165).\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others (`ERC165Checker`).\n *\n * For an implementation, see `ERC165`.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ncontract IERC721 is IERC165 {\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of NFTs in `owner`'s account.\n */\n function balanceOf(address owner) public view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the NFT specified by `tokenId`.\n */\n function ownerOf(uint256 tokenId) public view returns (address owner);\n\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * \n *\n * Requirements:\n * - `from`, `to` cannot be zero.\n * - `tokenId` must be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this\n * NFT by either `approve` or `setApproveForAll`.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public;\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * Requirements:\n * - If the caller is not `from`, it must be approved to move this NFT by\n * either `approve` or `setApproveForAll`.\n */\n function transferFrom(address from, address to, uint256 tokenId) public;\n function approve(address to, uint256 tokenId) public;\n function getApproved(uint256 tokenId) public view returns (address operator);\n\n function setApprovalForAll(address operator, bool _approved) public;\n function isApprovedForAll(address owner, address operator) public view returns (bool);\n\n\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public;\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ncontract IERC721Receiver {\n /**\n * @notice Handle the receipt of an NFT\n * @dev The ERC721 smart contract calls this function on the recipient\n * after a `safeTransfer`. This function MUST return the function selector,\n * otherwise the caller will revert the transaction. The selector to be\n * returned can be obtained as `this.onERC721Received.selector`. This\n * function MAY throw to revert and reject the transfer.\n * Note: the ERC721 contract address is always the message sender.\n * @param operator The address which called `safeTransferFrom` function\n * @param from The address which previously owned the token\n * @param tokenId The NFT identifier which is being transferred\n * @param data Additional data with no specified format\n * @return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n */\n function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data)\n public returns (bytes4);\n}\n\n// File: @openzeppelin/contracts/math/SafeMath.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\n * checks.\n *\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\n * in bugs, because programmers usually assume that an overflow raises an\n * error, which is the standard behavior in high level programming languages.\n * `SafeMath` restores this intuition by reverting the transaction when an\n * operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeMath {\n /**\n * @dev Returns the addition of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `+` operator.\n *\n * Requirements:\n * - Addition cannot overflow.\n */\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting on\n * overflow (when the result is negative).\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n * - Subtraction cannot overflow.\n */\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b <= a, \"SafeMath: subtraction overflow\");\n uint256 c = a - b;\n\n return c;\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `*` operator.\n *\n * Requirements:\n * - Multiplication cannot overflow.\n */\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers. Reverts on\n * division by zero. The result is rounded towards zero.\n *\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n * uses an invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n // Solidity only automatically asserts when dividing by 0\n require(b > 0, \"SafeMath: division by zero\");\n uint256 c = a / b;\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n return c;\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * Reverts when dividing by zero.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b != 0, \"SafeMath: modulo by zero\");\n return a % b;\n }\n}\n\n// File: @openzeppelin/contracts/utils/Address.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Collection of functions related to the address type,\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * This test is non-exhaustive, and there may be false-negatives: during the\n * execution of a contract's constructor, its address will be reported as\n * not containing a contract.\n *\n * > It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies in extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n}\n\n// File: @openzeppelin/contracts/drafts/Counters.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title Counters\n * @author Matt Condon (@shrugs)\n * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number\n * of elements in a mapping, issuing ERC721 ids, or counting request ids.\n *\n * Include with `using Counters for Counters.Counter;`\n * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath\n * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never\n * directly accessed.\n */\nlibrary Counters {\n using SafeMath for uint256;\n\n struct Counter {\n // This variable should never be directly accessed by users of the library: interactions must be restricted to\n // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add\n // this feature: see https://github.com/ethereum/solidity/issues/4637\n uint256 _value; // default: 0\n }\n\n function current(Counter storage counter) internal view returns (uint256) {\n return counter._value;\n }\n\n function increment(Counter storage counter) internal {\n counter._value += 1;\n }\n\n function decrement(Counter storage counter) internal {\n counter._value = counter._value.sub(1);\n }\n}\n\n// File: @openzeppelin/contracts/introspection/ERC165.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Implementation of the `IERC165` interface.\n *\n * Contracts may inherit from this and call `_registerInterface` to declare\n * their support of an interface.\n */\ncontract ERC165 is IERC165 {\n /*\n * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7\n */\n bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;\n\n /**\n * @dev Mapping of interface ids to whether or not it's supported.\n */\n mapping(bytes4 => bool) private _supportedInterfaces;\n\n constructor () internal {\n // Derived contracts need only register support for their own interfaces,\n // we register support for ERC165 itself here\n _registerInterface(_INTERFACE_ID_ERC165);\n }\n\n /**\n * @dev See `IERC165.supportsInterface`.\n *\n * Time complexity O(1), guaranteed to always use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool) {\n return _supportedInterfaces[interfaceId];\n }\n\n /**\n * @dev Registers the contract as an implementer of the interface defined by\n * `interfaceId`. Support of the actual ERC165 interface is automatic and\n * registering its interface id is not required.\n *\n * See `IERC165.supportsInterface`.\n *\n * Requirements:\n *\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).\n */\n function _registerInterface(bytes4 interfaceId) internal {\n require(interfaceId != 0xffffffff, \"ERC165: invalid interface id\");\n _supportedInterfaces[interfaceId] = true;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n\n\n\n/**\n * @title ERC721 Non-Fungible Token Standard basic implementation\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721 is ERC165, IERC721 {\n using SafeMath for uint256;\n using Address for address;\n using Counters for Counters.Counter;\n\n // Equals to `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`\n bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;\n\n // Mapping from token ID to owner\n mapping (uint256 => address) private _tokenOwner;\n\n // Mapping from token ID to approved address\n mapping (uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to number of owned token\n mapping (address => Counters.Counter) private _ownedTokensCount;\n\n // Mapping from owner to operator approvals\n mapping (address => mapping (address => bool)) private _operatorApprovals;\n\n /*\n * bytes4(keccak256('balanceOf(address)')) == 0x70a08231\n * bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e\n * bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3\n * bytes4(keccak256('getApproved(uint256)')) == 0x081812fc\n * bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465\n * bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c\n * bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd\n * bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e\n * bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde\n *\n * => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^\n * 0xa22cb465 ^ 0xe985e9c ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd\n */\n bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;\n\n constructor () public {\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721);\n }\n\n /**\n * @dev Gets the balance of the specified address.\n * @param owner address to query the balance of\n * @return uint256 representing the amount owned by the passed address\n */\n function balanceOf(address owner) public view returns (uint256) {\n require(owner != address(0), \"ERC721: balance query for the zero address\");\n\n return _ownedTokensCount[owner].current();\n }\n\n /**\n * @dev Gets the owner of the specified token ID.\n * @param tokenId uint256 ID of the token to query the owner of\n * @return address currently marked as the owner of the given token ID\n */\n function ownerOf(uint256 tokenId) public view returns (address) {\n address owner = _tokenOwner[tokenId];\n require(owner != address(0), \"ERC721: owner query for nonexistent token\");\n\n return owner;\n }\n\n /**\n * @dev Approves another address to transfer the given token ID\n * The zero address indicates there is no approved address.\n * There can only be one approved address per token at a given time.\n * Can only be called by the token owner or an approved operator.\n * @param to address to be approved for the given token ID\n * @param tokenId uint256 ID of the token to be approved\n */\n function approve(address to, uint256 tokenId) public {\n address owner = ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(msg.sender == owner || isApprovedForAll(owner, msg.sender),\n \"ERC721: approve caller is not owner nor approved for all\"\n );\n\n _tokenApprovals[tokenId] = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Gets the approved address for a token ID, or zero if no address set\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to query the approval of\n * @return address currently approved for the given token ID\n */\n function getApproved(uint256 tokenId) public view returns (address) {\n require(_exists(tokenId), \"ERC721: approved query for nonexistent token\");\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev Sets or unsets the approval of a given operator\n * An operator is allowed to transfer all tokens of the sender on their behalf.\n * @param to operator address to set the approval\n * @param approved representing the status of the approval to be set\n */\n function setApprovalForAll(address to, bool approved) public {\n require(to != msg.sender, \"ERC721: approve to caller\");\n\n _operatorApprovals[msg.sender][to] = approved;\n emit ApprovalForAll(msg.sender, to, approved);\n }\n\n /**\n * @dev Tells whether an operator is approved by a given owner.\n * @param owner owner address which you want to query the approval of\n * @param operator operator address which you want to query the approval of\n * @return bool whether the given operator is approved by the given owner\n */\n function isApprovedForAll(address owner, address operator) public view returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev Transfers the ownership of a given token ID to another address.\n * Usage of this method is discouraged, use `safeTransferFrom` whenever possible.\n * Requires the msg.sender to be the owner, approved, or operator.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function transferFrom(address from, address to, uint256 tokenId) public {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(msg.sender, tokenId), \"ERC721: transfer caller is not owner nor approved\");\n\n _transferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes data to send along with a safe transfer check\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public {\n transferFrom(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, _data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns whether the specified token exists.\n * @param tokenId uint256 ID of the token to query the existence of\n * @return bool whether the token exists\n */\n function _exists(uint256 tokenId) internal view returns (bool) {\n address owner = _tokenOwner[tokenId];\n return owner != address(0);\n }\n\n /**\n * @dev Returns whether the given spender can transfer a given token ID.\n * @param spender address of the spender to query\n * @param tokenId uint256 ID of the token to be transferred\n * @return bool whether the msg.sender is approved for the given token ID,\n * is an operator of the owner, or is the owner of the token\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view returns (bool) {\n require(_exists(tokenId), \"ERC721: operator query for nonexistent token\");\n address owner = ownerOf(tokenId);\n return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to The address that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _tokenOwner[tokenId] = to;\n _ownedTokensCount[to].increment();\n\n emit Transfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n require(ownerOf(tokenId) == owner, \"ERC721: burn of token that is not own\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[owner].decrement();\n _tokenOwner[tokenId] = address(0);\n\n emit Transfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(uint256 tokenId) internal {\n _burn(ownerOf(tokenId), tokenId);\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n require(ownerOf(tokenId) == from, \"ERC721: transfer of token that is not own\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[from].decrement();\n _ownedTokensCount[to].increment();\n\n _tokenOwner[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n }\n\n /**\n * @dev Internal function to invoke `onERC721Received` on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * This function is deprecated.\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data)\n internal returns (bool)\n {\n if (!to.isContract()) {\n return true;\n }\n\n bytes4 retval = IERC721Receiver(to).onERC721Received(msg.sender, from, tokenId, _data);\n return (retval == _ERC721_RECEIVED);\n }\n\n /**\n * @dev Private function to clear current approval of a given token ID.\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _clearApproval(uint256 tokenId) private {\n if (_tokenApprovals[tokenId] != address(0)) {\n _tokenApprovals[tokenId] = address(0);\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Enumerable is IERC721 {\n function totalSupply() public view returns (uint256);\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256 tokenId);\n\n function tokenByIndex(uint256 index) public view returns (uint256);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title ERC-721 Non-Fungible Token with optional enumeration extension logic\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Enumerable is ERC165, ERC721, IERC721Enumerable {\n // Mapping from owner to list of owned token IDs\n mapping(address => uint256[]) private _ownedTokens;\n\n // Mapping from token ID to index of the owner tokens list\n mapping(uint256 => uint256) private _ownedTokensIndex;\n\n // Array with all token ids, used for enumeration\n uint256[] private _allTokens;\n\n // Mapping from token id to position in the allTokens array\n mapping(uint256 => uint256) private _allTokensIndex;\n\n /*\n * bytes4(keccak256('totalSupply()')) == 0x18160ddd\n * bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59\n * bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7\n *\n * => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63\n */\n bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;\n\n /**\n * @dev Constructor function.\n */\n constructor () public {\n // register the supported interface to conform to ERC721Enumerable via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);\n }\n\n /**\n * @dev Gets the token ID at a given index of the tokens list of the requested owner.\n * @param owner address owning the tokens list to be accessed\n * @param index uint256 representing the index to be accessed of the requested tokens list\n * @return uint256 token ID at the given index of the tokens list owned by the requested address\n */\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) {\n require(index < balanceOf(owner), \"ERC721Enumerable: owner index out of bounds\");\n return _ownedTokens[owner][index];\n }\n\n /**\n * @dev Gets the total amount of tokens stored by the contract.\n * @return uint256 representing the total amount of tokens\n */\n function totalSupply() public view returns (uint256) {\n return _allTokens.length;\n }\n\n /**\n * @dev Gets the token ID at a given index of all the tokens in this contract\n * Reverts if the index is greater or equal to the total number of tokens.\n * @param index uint256 representing the index to be accessed of the tokens list\n * @return uint256 token ID at the given index of the tokens list\n */\n function tokenByIndex(uint256 index) public view returns (uint256) {\n require(index < totalSupply(), \"ERC721Enumerable: global index out of bounds\");\n return _allTokens[index];\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n super._transferFrom(from, to, tokenId);\n\n _removeTokenFromOwnerEnumeration(from, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to address the beneficiary that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n super._mint(to, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n\n _addTokenToAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n _removeTokenFromOwnerEnumeration(owner, tokenId);\n // Since tokenId will be deleted, we can clear its slot in _ownedTokensIndex to trigger a gas refund\n _ownedTokensIndex[tokenId] = 0;\n\n _removeTokenFromAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Gets the list of token IDs of the requested owner.\n * @param owner address owning the tokens\n * @return uint256[] List of token IDs owned by the requested address\n */\n function _tokensOfOwner(address owner) internal view returns (uint256[] storage) {\n return _ownedTokens[owner];\n }\n\n /**\n * @dev Private function to add a token to this extension's ownership-tracking data structures.\n * @param to address representing the new owner of the given token ID\n * @param tokenId uint256 ID of the token to be added to the tokens list of the given address\n */\n function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {\n _ownedTokensIndex[tokenId] = _ownedTokens[to].length;\n _ownedTokens[to].push(tokenId);\n }\n\n /**\n * @dev Private function to add a token to this extension's token tracking data structures.\n * @param tokenId uint256 ID of the token to be added to the tokens list\n */\n function _addTokenToAllTokensEnumeration(uint256 tokenId) private {\n _allTokensIndex[tokenId] = _allTokens.length;\n _allTokens.push(tokenId);\n }\n\n /**\n * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\n * while the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\n * gas optimizations e.g. when performing a transfer operation (avoiding double writes).\n * This has O(1) time complexity, but alters the order of the _ownedTokens array.\n * @param from address representing the previous owner of the given token ID\n * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address\n */\n function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {\n // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _ownedTokens[from].length.sub(1);\n uint256 tokenIndex = _ownedTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary\n if (tokenIndex != lastTokenIndex) {\n uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];\n\n _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n }\n\n // This also deletes the contents at the last position of the array\n _ownedTokens[from].length--;\n\n // Note that _ownedTokensIndex[tokenId] hasn't been cleared: it still points to the old slot (now occupied by\n // lastTokenId, or just over the end of the array if the token was the last one).\n }\n\n /**\n * @dev Private function to remove a token from this extension's token tracking data structures.\n * This has O(1) time complexity, but alters the order of the _allTokens array.\n * @param tokenId uint256 ID of the token to be removed from the tokens list\n */\n function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {\n // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _allTokens.length.sub(1);\n uint256 tokenIndex = _allTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so\n // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding\n // an 'if' statement (like in _removeTokenFromOwnerEnumeration)\n uint256 lastTokenId = _allTokens[lastTokenIndex];\n\n _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n\n // This also deletes the contents at the last position of the array\n _allTokens.length--;\n _allTokensIndex[tokenId] = 0;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Metadata is IERC721 {\n function name() external view returns (string memory);\n function symbol() external view returns (string memory);\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n\n\ncontract ERC721Metadata is ERC165, ERC721, IERC721Metadata {\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Optional mapping for token URIs\n mapping(uint256 => string) private _tokenURIs;\n\n /*\n * bytes4(keccak256('name()')) == 0x06fdde03\n * bytes4(keccak256('symbol()')) == 0x95d89b41\n * bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd\n *\n * => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f\n */\n bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;\n\n /**\n * @dev Constructor function\n */\n constructor (string memory name, string memory symbol) public {\n _name = name;\n _symbol = symbol;\n\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_METADATA);\n }\n\n /**\n * @dev Gets the token name.\n * @return string representing the token name\n */\n function name() external view returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Gets the token symbol.\n * @return string representing the token symbol\n */\n function symbol() external view returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns an URI for a given token ID.\n * Throws if the token ID does not exist. May return an empty string.\n * @param tokenId uint256 ID of the token to query\n */\n function tokenURI(uint256 tokenId) external view returns (string memory) {\n require(_exists(tokenId), \"ERC721Metadata: URI query for nonexistent token\");\n return _tokenURIs[tokenId];\n }\n\n /**\n * @dev Internal function to set the token URI for a given token.\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to set its URI\n * @param uri string URI to assign\n */\n function _setTokenURI(uint256 tokenId, string memory uri) internal {\n require(_exists(tokenId), \"ERC721Metadata: URI set of nonexistent token\");\n _tokenURIs[tokenId] = uri;\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned by the msg.sender\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n // Clear metadata (if any)\n if (bytes(_tokenURIs[tokenId]).length != 0) {\n delete _tokenURIs[tokenId];\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Full.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title Full ERC721 Token\n * This implementation includes all the required and some optional functionality of the ERC721 standard\n * Moreover, it includes approve all functionality using operator terminology\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Full is ERC721, ERC721Enumerable, ERC721Metadata {\n constructor (string memory name, string memory symbol) public ERC721Metadata(name, symbol) {\n // solhint-disable-previous-line no-empty-blocks\n }\n}\n", - "sourcePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "ast": { - "absolutePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "exportedSymbols": { - "Address": [ - 289 - ], - "Counters": [ - 336 - ], - "ERC165": [ - 386 - ], - "ERC721": [ - 944 - ], - "ERC721Enumerable": [ - 1302 - ], - "ERC721Full": [ - 1468 - ], - "ERC721Metadata": [ - 1448 - ], - "IERC165": [ - 23 - ], - "IERC721": [ - 124 - ], - "IERC721Enumerable": [ - 969 - ], - "IERC721Metadata": [ - 1323 - ], - "IERC721Receiver": [ - 139 - ], - "SafeMath": [ - 271 - ] - }, - "id": 1469, - "nodeType": "SourceUnit", - "nodes": [ - { - "id": 15, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "61:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "interface", - "documentation": "@dev Interface of the ERC165 standard, as defined in the\n[EIP](https://eips.ethereum.org/EIPS/eip-165).\n * Implementers can declare support of contract interfaces, which can then be\nqueried by others (`ERC165Checker`).\n * For an implementation, see `ERC165`.", - "fullyImplemented": false, - "id": 23, - "linearizedBaseContracts": [ - 23 - ], - "name": "IERC165", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@dev Returns true if this contract implements the interface defined by\n`interfaceId`. 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This can be used e.g. to track the number\nof elements in a mapping, issuing ERC721 ids, or counting request ids.\n * Include with `using Counters for Counters.Counter;`\nSince it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath\noverflow check, thereby saving gas. 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"src": "10817:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 352, - "nodeType": "ExpressionStatement", - "src": "10817:40:1" - } - ] - }, - "documentation": null, - "id": 354, - "implemented": true, - "kind": "constructor", - "modifiers": [], - "name": "", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 347, - "nodeType": "ParameterList", - "parameters": [], - "src": "10659:2:1" - }, - "returnParameters": { - "id": 348, - "nodeType": "ParameterList", - "parameters": [], - "src": "10671:0:1" - }, - "scope": 386, - "src": "10647:217:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 365, - "nodeType": "Block", - "src": "11090:57:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 361, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11107:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 363, - "indexExpression": { - "argumentTypes": null, - "id": 362, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 356, - "src": "11128:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "11107:33:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "functionReturnParameters": 360, - "id": 364, - "nodeType": "Return", - "src": "11100:40:1" - } - ] - }, - "documentation": "@dev See `IERC165.supportsInterface`.\n * Time complexity O(1), guaranteed to always use less than 30 000 gas.", - "id": 366, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "supportsInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 357, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 356, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 366, - "src": "11041:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 355, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11041:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11040:20:1" - }, - "returnParameters": { - "id": 360, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 359, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 366, - "src": "11084:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 358, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "11084:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11083:6:1" - }, - "scope": 386, - "src": "11014:133:1", - "stateMutability": "view", - "superFunction": 22, - "visibility": "external" - }, - { - "body": { - "id": 384, - "nodeType": "Block", - "src": "11598:133:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "id": 374, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 372, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11616:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "hexValue": "30786666666666666666", - "id": 373, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11631:10:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_4294967295_by_1", - "typeString": "int_const 4294967295" - }, - "value": "0xffffffff" - }, - "src": "11616:25:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - { - "argumentTypes": null, - "hexValue": "4552433136353a20696e76616c696420696e74657266616365206964", - "id": 375, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "string", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11643:30:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_stringliteral_282912c0dfceceb28d77d0333f496b83948f9ba5b3154358a8b140b849289dee", - "typeString": "literal_string \"ERC165: invalid interface id\"" - }, - "value": "ERC165: invalid interface id" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - { - "typeIdentifier": "t_stringliteral_282912c0dfceceb28d77d0333f496b83948f9ba5b3154358a8b140b849289dee", - "typeString": "literal_string \"ERC165: invalid interface id\"" - } - ], - "id": 371, - "name": "require", - "nodeType": "Identifier", - "overloadedDeclarations": [ - 1543, - 1544 - ], - "referencedDeclaration": 1544, - "src": "11608:7:1", - "typeDescriptions": { - "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", - "typeString": "function (bool,string memory) pure" - } - }, - "id": 376, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "11684:33:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "74727565", - "id": 381, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "bool", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11720:4:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "value": "true" - }, - "src": "11684:40:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "id": 383, - "nodeType": "ExpressionStatement", - "src": "11684:40:1" - } - ] - }, - "documentation": "@dev Registers the contract as an implementer of the interface defined by\n`interfaceId`. Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - }, - "returnParameters": { - "id": 370, - "nodeType": "ParameterList", - "parameters": [], - "src": "11598:0:1" - }, - "scope": 386, - "src": "11541:190:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "10321:1412:1" - }, - { - "id": 387, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "11793:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 388, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "11968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 389, - "nodeType": "InheritanceSpecifier", - "src": "11968:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 390, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "11976:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 391, - "nodeType": "InheritanceSpecifier", - "src": "11976:7:1" - } - ], - "contractDependencies": [ - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 944, - "linearizedBaseContracts": [ - 944, - 124, - 386, - 23 - ], - "name": "ERC721", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 394, - "libraryName": { - "contractScope": null, - "id": 392, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "11996:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "11990:27:1", - "typeName": { - "id": 393, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "12009:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - }, - { - "id": 397, - "libraryName": { - "contractScope": null, - "id": 395, - "name": "Address", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 289, - "src": "12028:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_Address_$289", - "typeString": "library Address" - } - }, - "nodeType": "UsingForDirective", - "src": "12022:26:1", - "typeName": { - "id": 396, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12040:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - } - }, - { - "id": 400, - "libraryName": { - "contractScope": null, - "id": 398, - "name": "Counters", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 336, - "src": "12059:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_Counters_$336", - "typeString": "library Counters" - } - }, - "nodeType": "UsingForDirective", - "src": "12053:36:1", - "typeName": { - "contractScope": null, - "id": 399, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12072:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - { - "constant": true, - "id": 403, - "name": "_ERC721_RECEIVED", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12267:53:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 401, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "12267:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783135306237613032", - "id": 402, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "12310:10:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_353073666_by_1", - "typeString": "int_const 353073666" - }, - "value": "0x150b7a02" - }, - "visibility": "private" - }, - { - "constant": false, - "id": 407, - "name": "_tokenOwner", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12365:48:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - }, - "typeName": { - "id": 406, - "keyType": { - "id": 404, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "12374:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Mapping", - "src": "12365:28:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - }, - "valueType": { - "id": 405, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12385:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 411, - "name": "_tokenApprovals", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12469:52:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - }, - "typeName": { - "id": 410, - "keyType": { - "id": 408, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "12478:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Mapping", - "src": "12469:28:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - }, - "valueType": { - "id": 409, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12489:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 415, - "name": "_ownedTokensCount", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12579:63:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_struct$_Counter_$296_storage_$", - "typeString": "mapping(address => struct Counters.Counter)" - }, - "typeName": { - "id": 414, - "keyType": { - "id": 412, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12588:7:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Mapping", - "src": "12579:37:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_struct$_Counter_$296_storage_$", - "typeString": "mapping(address => struct Counters.Counter)" - }, - "valueType": { - "contractScope": null, - "id": 413, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12599:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 421, - "name": "_operatorApprovals", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12697:73:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", - "typeString": "mapping(address => mapping(address => bool))" - }, - "typeName": { - "id": 420, - "keyType": { - "id": 416, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12706:7:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Mapping", - "src": "12697:46:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", - "typeString": "mapping(address => mapping(address => bool))" - }, - "valueType": { - "id": 419, - "keyType": { - "id": 417, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12726:7:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Mapping", - "src": "12717:25:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", - "typeString": "mapping(address => bool)" - }, - "valueType": { - "id": 418, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "12737:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": true, - "id": 424, - "name": "_INTERFACE_ID_ERC721", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "13644:57:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 422, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "13644:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783830616335386364", - "id": 423, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "13691:10:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_2158778573_by_1", - "typeString": "int_const 2158778573" - }, - "value": "0x80ac58cd" - }, - "visibility": "private" - }, - { - "body": { - "id": 431, - "nodeType": "Block", - "src": "13730:134:1", - "statements": [ - { - 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"typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 883, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "23414:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 886, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23426:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 885, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "23426:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 888, - "name": "_data", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23443:18:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 887, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "23443:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23399:63:1" - }, - "returnParameters": { - "id": 892, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 891, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23489:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 890, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "23489:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23488:6:1" - }, - "scope": 944, - "src": "23368:347:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 942, - "nodeType": "Block", - "src": "23926:122:1", - "statements": [ - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "id": 931, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 925, - "name": "_tokenApprovals", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 411, - "src": "23940:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - } - }, - "id": 927, - "indexExpression": { - "argumentTypes": null, - "id": 926, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 922, - "src": "23956:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "23940:24:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "30", - "id": 929, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "23976:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - } - ], - "id": 928, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "23968:7:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_address_$", - "typeString": "type(address)" - }, - "typeName": "address" - }, - "id": 930, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23968:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - "src": "23940:38:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 941, - "nodeType": "IfStatement", - "src": "23936:106:1", - "trueBody": { - "id": 940, - "nodeType": "Block", - "src": "23980:62:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 938, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 932, - "name": "_tokenApprovals", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 411, - "src": "23994:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - } - }, - "id": 934, - "indexExpression": { - "argumentTypes": null, - "id": 933, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 922, - "src": "24010:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "23994:24:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "30", - "id": 936, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "24029:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - } - ], - "id": 935, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "24021:7:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_address_$", - "typeString": "type(address)" - }, - "typeName": "address" - }, - "id": 937, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "24021:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - "src": "23994:37:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "id": 939, - "nodeType": "ExpressionStatement", - "src": "23994:37:1" - } - ] - } - } - ] - }, - "documentation": "@dev Private function to clear current approval of a given token ID.\n@param tokenId uint256 ID of the token to be transferred", - "id": 943, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_clearApproval", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 923, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 922, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 943, - "src": "23901:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 921, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "23901:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23900:17:1" - }, - "returnParameters": { - "id": 924, - "nodeType": "ParameterList", - "parameters": [], - "src": "23926:0:1" - }, - "scope": 944, - "src": "23877:171:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - } - ], - "scope": 1469, - "src": "11949:12101:1" - }, - { - "id": 945, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "24121:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 946, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "24314:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 947, - "nodeType": "InheritanceSpecifier", - "src": "24314:7:1" - } - ], - "contractDependencies": [ - 23, - 124 - ], - "contractKind": "contract", - "documentation": "@title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n@dev See https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": false, - "id": 969, - "linearizedBaseContracts": [ - 969, - 124, - 23 - ], - "name": "IERC721Enumerable", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": null, - "id": 952, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "totalSupply", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 948, - "nodeType": "ParameterList", - "parameters": [], - "src": "24348:2:1" - }, - "returnParameters": { - "id": 951, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 950, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 952, - "src": "24372:7:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 949, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24372:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24371:9:1" - }, - "scope": 969, - "src": "24328:53:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 961, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "tokenOfOwnerByIndex", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 957, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 954, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 961, - "src": "24415:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 953, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "24415:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 956, - "name": "index", - "nodeType": "VariableDeclaration", - "scope": 961, - "src": "24430:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 955, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24430:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24414:30:1" - }, - "returnParameters": { - "id": 960, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 959, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 961, - "src": "24466:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 958, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24466:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24465:17:1" - }, - "scope": 969, - "src": "24386:97:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 968, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "tokenByIndex", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 964, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 963, - "name": "index", - "nodeType": "VariableDeclaration", - "scope": 968, - "src": "24511:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 962, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24511:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24510:15:1" - }, - "returnParameters": { - "id": 967, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 966, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 968, - "src": "24547:7:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 965, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24547:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24546:9:1" - }, - "scope": 969, - "src": "24489:67:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "24284:274:1" - }, - { - "id": 970, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "24628:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 971, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "24823:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 972, - "nodeType": "InheritanceSpecifier", - "src": "24823:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 973, - "name": "ERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 944, - "src": "24831:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721_$944", - "typeString": "contract ERC721" - } - }, - "id": 974, - "nodeType": "InheritanceSpecifier", - "src": "24831:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 975, - "name": "IERC721Enumerable", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 969, - "src": "24839:17:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721Enumerable_$969", - "typeString": "contract IERC721Enumerable" - } - }, - "id": 976, - "nodeType": "InheritanceSpecifier", - "src": "24839:17:1" - } - ], - "contractDependencies": [ - 944, - 969, - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC-721 Non-Fungible Token with optional enumeration extension logic\n@dev See https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 1302, - "linearizedBaseContracts": [ - 1302, - 969, - 944, - 124, - 386, - 23 - ], - "name": "ERC721Enumerable", - "nodeType": "ContractDefinition", - "nodes": [ - { - "constant": false, - "id": 981, - "name": "_ownedTokens", - "nodeType": "VariableDeclaration", - "scope": 1302, - "src": "24916:50:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[])" - }, - "typeName": { - "id": 980, - "keyType": { - "id": 977, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "24924:7:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Mapping", - "src": "24916:29:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[])" - }, - "valueType": { - "baseType": { - "id": 978, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24935:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 979, - "length": null, - "nodeType": "ArrayTypeName", - "src": "24935:9:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 985, - "name": "_ownedTokensIndex", - "nodeType": "VariableDeclaration", - "scope": 1302, - "src": "25036:53:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - }, - "typeName": { - "id": 984, - "keyType": { - "id": 982, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "25044:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Mapping", - "src": "25036:27:1", - "typeDescriptions": { - 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"typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1062, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "27714:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "27687:43:1" - }, - "returnParameters": { - "id": 1065, - "nodeType": "ParameterList", - "parameters": [], - "src": "27740:0:1" - }, - "scope": 1302, - "src": "27665:239:1", - "stateMutability": "nonpayable", - "superFunction": 880, - "visibility": "internal" - }, - { - "body": { - "id": 1108, - "nodeType": "Block", - "src": "28214:143:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1095, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28236:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - 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"typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1097, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28224:24:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1098, - "nodeType": "ExpressionStatement", - "src": "28224:24:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1100, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28287:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1101, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28291:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1099, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "28259:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1102, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28259:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1103, - "nodeType": "ExpressionStatement", - "src": "28259:40:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1105, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28342:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1104, - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1195, - "src": "28310:31:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1106, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28310:40:1", - "typeDescriptions": { - 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"src": "28688:308:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1119, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28710:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1120, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28717:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1116, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28698:5:1", - 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"nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28769:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1125, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28776:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1123, - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "28736:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1126, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28736:48:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1127, - "nodeType": "ExpressionStatement", - "src": "28736:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1132, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1128, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "28903:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1130, - "indexExpression": { - "argumentTypes": null, - "id": 1129, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28921:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "28903:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1131, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "28932:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "28903:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1133, - 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"name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1243, - "src": "31297:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1221, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31297:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1228, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1223, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31319:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1225, - "indexExpression": { - "argumentTypes": null, - "id": 1224, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31332:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1227, - "indexExpression": { - "argumentTypes": null, - "id": 1226, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31338:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:34:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "32485:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1259, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32463:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1260, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "32463:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1261, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1265, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32497:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1270, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1267, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "32518:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1269, - "indexExpression": { - "argumentTypes": null, - "id": 1268, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "32534:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32518:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32497:45:1" - }, - { - "assignments": [ - 1272 - ], - "declarations": [ - { - "constant": false, - "id": 1272, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32864:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1271, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32864:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1276, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1273, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32886:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1275, - "indexExpression": { - "argumentTypes": null, - "id": 1274, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1258, - "src": "32897:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32886:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32864:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1281, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1277, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32923:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1279, - "indexExpression": { - "argumentTypes": null, - "id": 1278, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "32934:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "32923:22:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1280, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "32948:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "32923:36:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1282, - "nodeType": "ExpressionStatement", - "src": "32923:36:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1287, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1283, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33027:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1285, - "indexExpression": { - "argumentTypes": null, - "id": 1284, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "33043:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33027:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1286, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "33058:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "33027:41:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1288, - "nodeType": "ExpressionStatement", - "src": "33027:41:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1292, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "33189:19:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1289, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "33189:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1291, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "33189:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1293, - "nodeType": "ExpressionStatement", - "src": "33189:19:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1298, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1294, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33218:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1296, - "indexExpression": { - "argumentTypes": null, - "id": 1295, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "33234:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33218:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1297, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "33245:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "33218:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1299, - "nodeType": "ExpressionStatement", - "src": "33218:28:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's token tracking data structures.\nThis has O(1) time complexity, but alters the order of the _allTokens array.\n@param tokenId uint256 ID of the token to be removed from the tokens list", - 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May return an empty string.\n@param tokenId uint256 ID of the token to query", - "id": 1396, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "tokenURI", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1380, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1379, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1396, - "src": "35304:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1378, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "35304:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "35303:17:1" - }, - "returnParameters": { - "id": 1383, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1382, - "name": "", - 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"isLValue": false, - "isPure": true, - "kind": "string", - "lValueRequested": false, - "nodeType": "Literal", - "src": "35830:46:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_stringliteral_94be4a260caaeac1b145f03ffa2e70bc612b64982d04f24073aaf3a5f9009978", - "typeString": "literal_string \"ERC721Metadata: URI set of nonexistent token\"" - }, - "value": "ERC721Metadata: URI set of nonexistent token" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - { - "typeIdentifier": "t_stringliteral_94be4a260caaeac1b145f03ffa2e70bc612b64982d04f24073aaf3a5f9009978", - "typeString": "literal_string \"ERC721Metadata: URI set of nonexistent token\"" - } - ], - "id": 1403, - "name": "require", - "nodeType": "Identifier", - "overloadedDeclarations": [ - 1543, - 1544 - ], - "referencedDeclaration": 1544, - "src": "35804:7:1", - "typeDescriptions": { - "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", - 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} - }, - "id": 1415, - "nodeType": "ExpressionStatement", - "src": "35887:25:1" - } - ] - }, - "documentation": "@dev Internal function to set the token URI for a given token.\nReverts if the token ID does not exist.\n@param tokenId uint256 ID of the token to set its URI\n@param uri string URI to assign", - "id": 1417, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_setTokenURI", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1401, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1398, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1417, - "src": "35749:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1397, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "35749:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - 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"argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1427, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1419, - "src": "36290:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1428, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1421, - "src": "36297:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1424, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1576, - "src": "36278:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Metadata_$1448", - "typeString": "contract super ERC721Metadata" - } - }, - "id": 1426, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_burn", - "nodeType": "MemberAccess", - "referencedDeclaration": 811, - "src": "36278:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1429, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "36278:27:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1430, - "nodeType": "ExpressionStatement", - "src": "36278:27:1" - }, - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "id": 1438, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1432, - "name": "_tokenURIs", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1338, - "src": "36361:10:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", - "typeString": "mapping(uint256 => string storage ref)" - } - }, - "id": 1434, - "indexExpression": { - "argumentTypes": null, - "id": 1433, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1421, - "src": "36372:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "36361:19:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage", - "typeString": "string storage ref" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_string_storage", - "typeString": "string storage ref" - } - ], - "id": 1431, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "36355:5:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_bytes_storage_ptr_$", - "typeString": "type(bytes storage pointer)" - }, - "typeName": "bytes" - }, - "id": 1435, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "36355:26:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes storage pointer" - } - }, - "id": 1436, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "36355:33:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "hexValue": "30", - "id": 1437, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "36392:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "36355:38:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 1445, - "nodeType": "IfStatement", - "src": "36351:95:1", - "trueBody": { - "id": 1444, - "nodeType": "Block", - "src": "36395:51:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 1442, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - 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This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. 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} - }, - "id": 329, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "10032:18:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 331, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "10032:21:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "10015:38:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 333, - "nodeType": "ExpressionStatement", - "src": "10015:38:1" - } - ] - }, - "documentation": null, - "id": 335, - "implemented": true, - "kind": "function", - 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"stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "9303:759:1" - }, - { - "id": 337, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "10123:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 338, - "name": "IERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 23, - "src": "10340:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC165_$23", - "typeString": "contract IERC165" - } - }, - "id": 339, - "nodeType": "InheritanceSpecifier", - "src": "10340:7:1" - } - ], - "contractDependencies": [ - 23 - ], - "contractKind": "contract", - "documentation": "@dev Implementation of the `IERC165` interface.\n * Contracts may inherit from this and call `_registerInterface` to declare\ntheir support of an interface.", - "fullyImplemented": true, - "id": 386, - "linearizedBaseContracts": [ - 386, - 23 - ], - "name": "ERC165", - "nodeType": "ContractDefinition", - "nodes": [ - { - "constant": true, - "id": 342, - "name": "_INTERFACE_ID_ERC165", - "nodeType": "VariableDeclaration", - "scope": 386, - "src": "10437:57:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 340, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "10437:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783031666663396137", - "id": 341, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "10484:10:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_33540519_by_1", - "typeString": "int_const 33540519" - }, - "value": "0x01ffc9a7" - }, - "visibility": "private" - }, - { - "constant": false, - "id": 346, - "name": "_supportedInterfaces", - "nodeType": "VariableDeclaration", - "scope": 386, - "src": "10588:52:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - }, - "typeName": { - "id": 345, - "keyType": { - "id": 343, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "10596:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "Mapping", - "src": "10588:23:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - }, - "valueType": { - "id": 344, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "10606:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "body": { - "id": 353, - "nodeType": "Block", - "src": "10671:193:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 350, - "name": "_INTERFACE_ID_ERC165", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 342, - "src": "10836:20:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - ], - "id": 349, - "name": "_registerInterface", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 385, - "src": "10817:18:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_bytes4_$returns$__$", - "typeString": "function (bytes4)" - } - }, - "id": 351, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "10817:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 352, - "nodeType": "ExpressionStatement", - "src": "10817:40:1" - } - ] - }, - "documentation": null, - "id": 354, - "implemented": true, - "kind": "constructor", - "modifiers": [], - "name": "", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 347, - "nodeType": "ParameterList", - "parameters": [], - "src": "10659:2:1" - }, - "returnParameters": { - "id": 348, - "nodeType": "ParameterList", - "parameters": [], - "src": "10671:0:1" - }, - "scope": 386, - "src": "10647:217:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 365, - "nodeType": "Block", - "src": "11090:57:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 361, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - 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"typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 358, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "11084:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11083:6:1" - }, - "scope": 386, - "src": "11014:133:1", - "stateMutability": "view", - "superFunction": 22, - "visibility": "external" - }, - { - "body": { - "id": 384, - "nodeType": "Block", - "src": "11598:133:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "id": 374, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 372, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11616:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "hexValue": "30786666666666666666", - "id": 373, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11631:10:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_4294967295_by_1", - "typeString": "int_const 4294967295" - }, - "value": "0xffffffff" - }, - "src": "11616:25:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - { - "argumentTypes": null, - "hexValue": "4552433136353a20696e76616c696420696e74657266616365206964", - "id": 375, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "string", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11643:30:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_stringliteral_282912c0dfceceb28d77d0333f496b83948f9ba5b3154358a8b140b849289dee", - "typeString": "literal_string \"ERC165: invalid interface id\"" - }, - "value": "ERC165: invalid interface id" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - { - "typeIdentifier": "t_stringliteral_282912c0dfceceb28d77d0333f496b83948f9ba5b3154358a8b140b849289dee", - "typeString": "literal_string \"ERC165: invalid interface id\"" - } - ], - "id": 371, - "name": "require", - "nodeType": "Identifier", - "overloadedDeclarations": [ - 1543, - 1544 - ], - "referencedDeclaration": 1544, - "src": "11608:7:1", - "typeDescriptions": { - "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", - "typeString": "function (bool,string memory) pure" - } - }, - "id": 376, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "11684:33:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "74727565", - "id": 381, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "bool", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11720:4:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "value": "true" - }, - "src": "11684:40:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "id": 383, - "nodeType": "ExpressionStatement", - "src": "11684:40:1" - } - ] - }, - "documentation": "@dev Registers the contract as an implementer of the interface defined by\n`interfaceId`. Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - }, - "returnParameters": { - "id": 370, - "nodeType": "ParameterList", - "parameters": [], - "src": "11598:0:1" - }, - "scope": 386, - "src": "11541:190:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "10321:1412:1" - }, - { - "id": 387, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "11793:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 388, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "11968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 389, - "nodeType": "InheritanceSpecifier", - "src": "11968:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 390, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "11976:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 391, - "nodeType": "InheritanceSpecifier", - "src": "11976:7:1" - } - ], - "contractDependencies": [ - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 944, - "linearizedBaseContracts": [ - 944, - 124, - 386, - 23 - ], - "name": "ERC721", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 394, - "libraryName": { - "contractScope": null, - "id": 392, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "11996:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "11990:27:1", - "typeName": { - "id": 393, - "name": "uint256", - 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"typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 600, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 619, - "src": "17522:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 599, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "17522:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "17495:43:1" - }, - "returnParameters": { - "id": 602, - "nodeType": "ParameterList", - "parameters": [], - "src": "17546:0:1" - }, - "scope": 944, - "src": "17474:285:1", - "stateMutability": "nonpayable", - "superFunction": 82, - "visibility": "public" - }, - { - "body": { - "id": 635, - "nodeType": "Block", - "src": "18468:56:1", - 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"typeString": "msg" - } - }, - "id": 908, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sender", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "23630:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - { - "argumentTypes": null, - "id": 909, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 882, - "src": "23642:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 910, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 886, - "src": "23648:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - { - "argumentTypes": null, - "id": 911, - "name": "_data", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 888, - "src": "23657:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes memory" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - }, - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes memory" - } - ], - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 904, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 884, - "src": "23609:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - } - ], - "id": 903, - "name": "IERC721Receiver", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 139, - "src": "23593:15:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_contract$_IERC721Receiver_$139_$", - "typeString": "type(contract IERC721Receiver)" - } - }, - "id": 905, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23593:19:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721Receiver_$139", - "typeString": "contract IERC721Receiver" - } - }, - "id": 906, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "onERC721Received", - "nodeType": "MemberAccess", - "referencedDeclaration": 138, - "src": "23593:36:1", - "typeDescriptions": { - "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bytes4_$", - "typeString": "function (address,address,uint256,bytes memory) external returns (bytes4)" - } - }, - "id": 912, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23593:70:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "23577:86:1" - }, - { - "expression": { - "argumentTypes": null, - "components": [ - { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "id": 916, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 914, - "name": "retval", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 902, - "src": "23681:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "BinaryOperation", - "operator": "==", - "rightExpression": { - "argumentTypes": null, - "id": 915, - "name": "_ERC721_RECEIVED", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 403, - "src": "23691:16:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "src": "23681:26:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - } - ], - "id": 917, - "isConstant": false, - "isInlineArray": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "TupleExpression", - "src": "23680:28:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "functionReturnParameters": 892, - "id": 918, - "nodeType": "Return", - "src": "23673:35:1" - } - ] - }, - "documentation": "@dev Internal function to invoke `onERC721Received` on a target address.\nThe call is not executed if the target address is not a contract.\n * This function is deprecated.\n@param from address representing the previous owner of the given token ID\n@param to target address that will receive the tokens\n@param tokenId uint256 ID of the token to be transferred\n@param _data bytes optional data to send along with the call\n@return bool whether the call correctly returned the expected magic value", - "id": 920, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_checkOnERC721Received", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 889, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 882, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23400:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 881, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "23400:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 884, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23414:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 883, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "23414:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 886, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23426:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 885, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "23426:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 888, - "name": "_data", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23443:18:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 887, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "23443:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23399:63:1" - }, - "returnParameters": { - "id": 892, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 891, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23489:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 890, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "23489:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23488:6:1" - }, - "scope": 944, - "src": "23368:347:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 942, - "nodeType": "Block", - "src": "23926:122:1", - "statements": [ - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "id": 931, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 925, - "name": "_tokenApprovals", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 411, - "src": "23940:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - } - }, - "id": 927, - "indexExpression": { - "argumentTypes": null, - "id": 926, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 922, - "src": "23956:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "23940:24:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "30", - "id": 929, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "23976:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - } - ], - "id": 928, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "23968:7:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_address_$", - "typeString": "type(address)" - }, - "typeName": "address" - }, - "id": 930, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23968:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - "src": "23940:38:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 941, - "nodeType": "IfStatement", - "src": "23936:106:1", - "trueBody": { - "id": 940, - "nodeType": "Block", - "src": "23980:62:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 938, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 932, - "name": "_tokenApprovals", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 411, - "src": "23994:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - } - }, - "id": 934, - "indexExpression": { - "argumentTypes": null, - "id": 933, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 922, - "src": "24010:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "23994:24:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "30", - "id": 936, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "24029:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - } - ], - "id": 935, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "24021:7:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_address_$", - "typeString": "type(address)" - }, - "typeName": "address" - }, - "id": 937, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "24021:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - "src": "23994:37:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "id": 939, - "nodeType": "ExpressionStatement", - "src": "23994:37:1" - } - ] - } - } - ] - }, - "documentation": "@dev Private function to clear current approval of a given token ID.\n@param tokenId uint256 ID of the token to be transferred", - "id": 943, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_clearApproval", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 923, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 922, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 943, - "src": "23901:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 921, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "23901:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23900:17:1" - }, - "returnParameters": { - "id": 924, - "nodeType": "ParameterList", - "parameters": [], - "src": "23926:0:1" - }, - "scope": 944, - "src": "23877:171:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - } - ], - "scope": 1469, - "src": "11949:12101:1" - }, - { - "id": 945, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "24121:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 946, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "24314:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 947, - "nodeType": "InheritanceSpecifier", - "src": "24314:7:1" - } - ], - "contractDependencies": [ - 23, - 124 - ], - "contractKind": "contract", - "documentation": "@title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n@dev See https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": false, - "id": 969, - "linearizedBaseContracts": [ - 969, - 124, - 23 - ], - "name": "IERC721Enumerable", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": null, - "id": 952, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "totalSupply", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 948, - "nodeType": "ParameterList", - "parameters": [], - "src": "24348:2:1" - }, - "returnParameters": { - "id": 951, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 950, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 952, - "src": "24372:7:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 949, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24372:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24371:9:1" - }, - "scope": 969, - "src": "24328:53:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 961, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "tokenOfOwnerByIndex", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 957, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 954, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 961, - "src": "24415:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 953, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "24415:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 956, - "name": "index", - "nodeType": "VariableDeclaration", - "scope": 961, - "src": "24430:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 955, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24430:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24414:30:1" - }, - "returnParameters": { - "id": 960, - 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} - ], - "src": "29262:19:1" - }, - "scope": 1302, - "src": "29201:124:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 1175, - "nodeType": "Block", - "src": "29693:109:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 1166, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1159, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "29703:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1161, - "indexExpression": { - "argumentTypes": null, - "id": 1160, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1156, - "src": "29721:7:1", - 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"src": "29745:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "29732:16:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1165, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "29732:23:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "29703:52:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1167, - "nodeType": "ExpressionStatement", - "src": "29703:52:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1172, - "name": "tokenId", - 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"nodeType": "ExpressionStatement", - "src": "29765:30:1" - } - ] - }, - "documentation": "@dev Private function to add a token to this extension's ownership-tracking data structures.\n@param to address representing the new owner of the given token ID\n@param tokenId uint256 ID of the token to be added to the tokens list of the given address", - "id": 1176, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_addTokenToOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1157, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1154, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1176, - "src": "29656:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1153, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "29656:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1156, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1176, - "src": "29668:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1155, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "29668:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "29655:29:1" - }, - "returnParameters": { - "id": 1158, - "nodeType": "ParameterList", - "parameters": [], - "src": "29693:0:1" - }, - "scope": 1302, - "src": "29619:183:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1194, - "nodeType": "Block", - "src": "30063:95:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 1186, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1181, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "30073:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1183, - "indexExpression": { - "argumentTypes": null, - "id": 1182, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1178, - "src": "30089:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "30073:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1184, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30100:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1185, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30100:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "30073:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1187, - "nodeType": "ExpressionStatement", - "src": "30073:44:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1191, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1178, - "src": "30143:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1188, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30127:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1190, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "push", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30127:15:1", - 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"name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1243, - "src": "31297:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1221, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31297:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1228, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1223, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31319:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1225, - "indexExpression": { - "argumentTypes": null, - "id": 1224, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31332:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1227, - "indexExpression": { - "argumentTypes": null, - "id": 1226, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31338:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:34:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "32485:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1259, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32463:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1260, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "32463:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1261, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1265, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32497:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1270, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1267, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "32518:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1269, - "indexExpression": { - "argumentTypes": null, - "id": 1268, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "32534:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - 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"visibility": "internal" - } - ], - "scope": 1469, - "src": "33817:2637:1" - }, - { - "id": 1449, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "36518:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1450, - "name": "ERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 944, - "src": "36838:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721_$944", - "typeString": "contract ERC721" - } - }, - "id": 1451, - "nodeType": "InheritanceSpecifier", - "src": "36838:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1452, - "name": "ERC721Enumerable", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 1302, - "src": "36846:16:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721Enumerable_$1302", - "typeString": "contract ERC721Enumerable" - } - }, - "id": 1453, - "nodeType": "InheritanceSpecifier", - "src": "36846:16:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1454, - "name": "ERC721Metadata", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 1448, - "src": "36864:14:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721Metadata_$1448", - "typeString": "contract ERC721Metadata" - } - }, - "id": 1455, - "nodeType": "InheritanceSpecifier", - "src": "36864:14:1" - } - ], - "contractDependencies": [ - 944, - 969, - 23, - 124, - 386, - 1302, - 1323, - 1448 - ], - "contractKind": "contract", - "documentation": "@title Full ERC721 Token\nThis implementation includes all the required and some optional functionality of the ERC721 standard\nMoreover, it includes approve all functionality using operator terminology\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 1468, - "linearizedBaseContracts": [ - 1468, - 1448, - 1323, - 1302, - 969, - 944, - 124, - 386, - 23 - ], - "name": "ERC721Full", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": { - "id": 1466, - "nodeType": "Block", - "src": "36976:64:1", - "statements": [] - }, - "documentation": null, - "id": 1467, - "implemented": true, - "kind": "constructor", - "modifiers": [ - { - "arguments": [ - { - "argumentTypes": null, - "id": 1462, - "name": "name", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1457, - "src": "36962:4:1", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string memory" - } - }, - { - "argumentTypes": null, - "id": 1463, - "name": "symbol", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1459, - "src": "36968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string memory" - } - } - ], - "id": 1464, - "modifierName": { - "argumentTypes": null, - "id": 1461, - "name": "ERC721Metadata", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1448, - "src": "36947:14:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_contract$_ERC721Metadata_$1448_$", - "typeString": "type(contract ERC721Metadata)" - } - }, - "nodeType": "ModifierInvocation", - "src": "36947:28:1" - } - ], - "name": "", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1460, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1457, - "name": "name", - "nodeType": "VariableDeclaration", - "scope": 1467, - "src": "36898:18:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1456, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "36898:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1459, - "name": "symbol", - "nodeType": "VariableDeclaration", - "scope": 1467, - "src": "36918:20:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1458, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "36918:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "36897:42:1" - }, - "returnParameters": { - "id": 1465, - "nodeType": "ParameterList", - "parameters": [], - "src": "36976:0:1" - }, - "scope": 1468, - "src": "36885:155:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "36815:227:1" - } - ], - "src": "61:36982:1" - }, - "compiler": { - "name": "solc", - "version": "0.5.0+commit.1d4f565a.Emscripten.clang" - }, - "networks": {}, - "schemaVersion": "3.0.2", - "updatedAt": "2019-09-05T15:01:08.708Z", - "devdoc": { - "details": "Interface of the ERC165 standard, as defined in the [EIP](https://eips.ethereum.org/EIPS/eip-165). * Implementers can declare support of contract interfaces, which can then be queried by others (`ERC165Checker`). * For an implementation, see `ERC165`.", - "methods": { - "supportsInterface(bytes4)": { - "details": "Returns true if this contract implements the interface defined by `interfaceId`. See the corresponding [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified) to learn more about how these ids are created. * This function call must use less than 30 000 gas." - } - } - }, - "userdoc": { - "methods": {} - } -} \ No newline at end of file diff --git a/src/abis/IERC721.json b/src/abis/IERC721.json deleted file mode 100644 index 8c8d68b..0000000 --- a/src/abis/IERC721.json +++ /dev/null @@ -1,37736 +0,0 @@ -{ - "contractName": "IERC721", - "abi": [ - { - "constant": true, - "inputs": [ - { - "name": "interfaceId", - "type": "bytes4" - } - ], - "name": "supportsInterface", - "outputs": [ - { - "name": "", - "type": "bool" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "anonymous": false, - "inputs": [ - { - "indexed": true, - "name": "from", - "type": "address" - }, - { - "indexed": true, - "name": "to", - "type": "address" - }, - { - "indexed": true, - "name": "tokenId", - "type": "uint256" - } - ], - "name": "Transfer", - "type": "event" - }, - { - "anonymous": false, - "inputs": [ - { - "indexed": true, - "name": "owner", - "type": "address" - }, - { - "indexed": true, - "name": "approved", - "type": "address" - }, - { - "indexed": true, - "name": "tokenId", - "type": "uint256" - } - ], - "name": "Approval", - "type": "event" - }, - { - "anonymous": false, - "inputs": [ - { - "indexed": true, - "name": "owner", - "type": "address" - }, - { - "indexed": true, - "name": "operator", - "type": "address" - }, - { - "indexed": false, - "name": "approved", - "type": "bool" - } - ], - "name": "ApprovalForAll", - "type": "event" - }, - { - "constant": true, - "inputs": [ - { - "name": "owner", - "type": "address" - } - ], - "name": "balanceOf", - "outputs": [ - { - "name": "balance", - "type": "uint256" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "ownerOf", - "outputs": [ - { - "name": "owner", - "type": "address" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "from", - "type": "address" - }, - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "transferFrom", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "approve", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "getApproved", - "outputs": [ - { - "name": "operator", - "type": "address" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "operator", - "type": "address" - }, - { - "name": "_approved", - "type": "bool" - } - ], - "name": "setApprovalForAll", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "owner", - "type": "address" - }, - { - "name": "operator", - "type": "address" - } - ], - "name": "isApprovedForAll", - "outputs": [ - { - "name": "", - "type": "bool" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "from", - "type": "address" - }, - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "safeTransferFrom", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "from", - "type": "address" - }, - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - }, - { - "name": "data", - "type": "bytes" - } - ], - "name": "safeTransferFrom", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - } - ], - "bytecode": "0x", - "deployedBytecode": "0x", - "sourceMap": "", - "deployedSourceMap": "", - "source": "\n// File: @openzeppelin/contracts/introspection/IERC165.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * [EIP](https://eips.ethereum.org/EIPS/eip-165).\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others (`ERC165Checker`).\n *\n * For an implementation, see `ERC165`.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ncontract IERC721 is IERC165 {\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of NFTs in `owner`'s account.\n */\n function balanceOf(address owner) public view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the NFT specified by `tokenId`.\n */\n function ownerOf(uint256 tokenId) public view returns (address owner);\n\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * \n *\n * Requirements:\n * - `from`, `to` cannot be zero.\n * - `tokenId` must be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this\n * NFT by either `approve` or `setApproveForAll`.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public;\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * Requirements:\n * - If the caller is not `from`, it must be approved to move this NFT by\n * either `approve` or `setApproveForAll`.\n */\n function transferFrom(address from, address to, uint256 tokenId) public;\n function approve(address to, uint256 tokenId) public;\n function getApproved(uint256 tokenId) public view returns (address operator);\n\n function setApprovalForAll(address operator, bool _approved) public;\n function isApprovedForAll(address owner, address operator) public view returns (bool);\n\n\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public;\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ncontract IERC721Receiver {\n /**\n * @notice Handle the receipt of an NFT\n * @dev The ERC721 smart contract calls this function on the recipient\n * after a `safeTransfer`. This function MUST return the function selector,\n * otherwise the caller will revert the transaction. The selector to be\n * returned can be obtained as `this.onERC721Received.selector`. This\n * function MAY throw to revert and reject the transfer.\n * Note: the ERC721 contract address is always the message sender.\n * @param operator The address which called `safeTransferFrom` function\n * @param from The address which previously owned the token\n * @param tokenId The NFT identifier which is being transferred\n * @param data Additional data with no specified format\n * @return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n */\n function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data)\n public returns (bytes4);\n}\n\n// File: @openzeppelin/contracts/math/SafeMath.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\n * checks.\n *\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\n * in bugs, because programmers usually assume that an overflow raises an\n * error, which is the standard behavior in high level programming languages.\n * `SafeMath` restores this intuition by reverting the transaction when an\n * operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeMath {\n /**\n * @dev Returns the addition of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `+` operator.\n *\n * Requirements:\n * - Addition cannot overflow.\n */\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting on\n * overflow (when the result is negative).\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n * - Subtraction cannot overflow.\n */\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b <= a, \"SafeMath: subtraction overflow\");\n uint256 c = a - b;\n\n return c;\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `*` operator.\n *\n * Requirements:\n * - Multiplication cannot overflow.\n */\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers. Reverts on\n * division by zero. The result is rounded towards zero.\n *\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n * uses an invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n // Solidity only automatically asserts when dividing by 0\n require(b > 0, \"SafeMath: division by zero\");\n uint256 c = a / b;\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n return c;\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * Reverts when dividing by zero.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b != 0, \"SafeMath: modulo by zero\");\n return a % b;\n }\n}\n\n// File: @openzeppelin/contracts/utils/Address.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Collection of functions related to the address type,\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * This test is non-exhaustive, and there may be false-negatives: during the\n * execution of a contract's constructor, its address will be reported as\n * not containing a contract.\n *\n * > It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies in extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n}\n\n// File: @openzeppelin/contracts/drafts/Counters.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title Counters\n * @author Matt Condon (@shrugs)\n * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number\n * of elements in a mapping, issuing ERC721 ids, or counting request ids.\n *\n * Include with `using Counters for Counters.Counter;`\n * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath\n * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never\n * directly accessed.\n */\nlibrary Counters {\n using SafeMath for uint256;\n\n struct Counter {\n // This variable should never be directly accessed by users of the library: interactions must be restricted to\n // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add\n // this feature: see https://github.com/ethereum/solidity/issues/4637\n uint256 _value; // default: 0\n }\n\n function current(Counter storage counter) internal view returns (uint256) {\n return counter._value;\n }\n\n function increment(Counter storage counter) internal {\n counter._value += 1;\n }\n\n function decrement(Counter storage counter) internal {\n counter._value = counter._value.sub(1);\n }\n}\n\n// File: @openzeppelin/contracts/introspection/ERC165.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Implementation of the `IERC165` interface.\n *\n * Contracts may inherit from this and call `_registerInterface` to declare\n * their support of an interface.\n */\ncontract ERC165 is IERC165 {\n /*\n * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7\n */\n bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;\n\n /**\n * @dev Mapping of interface ids to whether or not it's supported.\n */\n mapping(bytes4 => bool) private _supportedInterfaces;\n\n constructor () internal {\n // Derived contracts need only register support for their own interfaces,\n // we register support for ERC165 itself here\n _registerInterface(_INTERFACE_ID_ERC165);\n }\n\n /**\n * @dev See `IERC165.supportsInterface`.\n *\n * Time complexity O(1), guaranteed to always use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool) {\n return _supportedInterfaces[interfaceId];\n }\n\n /**\n * @dev Registers the contract as an implementer of the interface defined by\n * `interfaceId`. Support of the actual ERC165 interface is automatic and\n * registering its interface id is not required.\n *\n * See `IERC165.supportsInterface`.\n *\n * Requirements:\n *\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).\n */\n function _registerInterface(bytes4 interfaceId) internal {\n require(interfaceId != 0xffffffff, \"ERC165: invalid interface id\");\n _supportedInterfaces[interfaceId] = true;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n\n\n\n/**\n * @title ERC721 Non-Fungible Token Standard basic implementation\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721 is ERC165, IERC721 {\n using SafeMath for uint256;\n using Address for address;\n using Counters for Counters.Counter;\n\n // Equals to `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`\n bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;\n\n // Mapping from token ID to owner\n mapping (uint256 => address) private _tokenOwner;\n\n // Mapping from token ID to approved address\n mapping (uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to number of owned token\n mapping (address => Counters.Counter) private _ownedTokensCount;\n\n // Mapping from owner to operator approvals\n mapping (address => mapping (address => bool)) private _operatorApprovals;\n\n /*\n * bytes4(keccak256('balanceOf(address)')) == 0x70a08231\n * bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e\n * bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3\n * bytes4(keccak256('getApproved(uint256)')) == 0x081812fc\n * bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465\n * bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c\n * bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd\n * bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e\n * bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde\n *\n * => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^\n * 0xa22cb465 ^ 0xe985e9c ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd\n */\n bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;\n\n constructor () public {\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721);\n }\n\n /**\n * @dev Gets the balance of the specified address.\n * @param owner address to query the balance of\n * @return uint256 representing the amount owned by the passed address\n */\n function balanceOf(address owner) public view returns (uint256) {\n require(owner != address(0), \"ERC721: balance query for the zero address\");\n\n return _ownedTokensCount[owner].current();\n }\n\n /**\n * @dev Gets the owner of the specified token ID.\n * @param tokenId uint256 ID of the token to query the owner of\n * @return address currently marked as the owner of the given token ID\n */\n function ownerOf(uint256 tokenId) public view returns (address) {\n address owner = _tokenOwner[tokenId];\n require(owner != address(0), \"ERC721: owner query for nonexistent token\");\n\n return owner;\n }\n\n /**\n * @dev Approves another address to transfer the given token ID\n * The zero address indicates there is no approved address.\n * There can only be one approved address per token at a given time.\n * Can only be called by the token owner or an approved operator.\n * @param to address to be approved for the given token ID\n * @param tokenId uint256 ID of the token to be approved\n */\n function approve(address to, uint256 tokenId) public {\n address owner = ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(msg.sender == owner || isApprovedForAll(owner, msg.sender),\n \"ERC721: approve caller is not owner nor approved for all\"\n );\n\n _tokenApprovals[tokenId] = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Gets the approved address for a token ID, or zero if no address set\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to query the approval of\n * @return address currently approved for the given token ID\n */\n function getApproved(uint256 tokenId) public view returns (address) {\n require(_exists(tokenId), \"ERC721: approved query for nonexistent token\");\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev Sets or unsets the approval of a given operator\n * An operator is allowed to transfer all tokens of the sender on their behalf.\n * @param to operator address to set the approval\n * @param approved representing the status of the approval to be set\n */\n function setApprovalForAll(address to, bool approved) public {\n require(to != msg.sender, \"ERC721: approve to caller\");\n\n _operatorApprovals[msg.sender][to] = approved;\n emit ApprovalForAll(msg.sender, to, approved);\n }\n\n /**\n * @dev Tells whether an operator is approved by a given owner.\n * @param owner owner address which you want to query the approval of\n * @param operator operator address which you want to query the approval of\n * @return bool whether the given operator is approved by the given owner\n */\n function isApprovedForAll(address owner, address operator) public view returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev Transfers the ownership of a given token ID to another address.\n * Usage of this method is discouraged, use `safeTransferFrom` whenever possible.\n * Requires the msg.sender to be the owner, approved, or operator.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function transferFrom(address from, address to, uint256 tokenId) public {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(msg.sender, tokenId), \"ERC721: transfer caller is not owner nor approved\");\n\n _transferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes data to send along with a safe transfer check\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public {\n transferFrom(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, _data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns whether the specified token exists.\n * @param tokenId uint256 ID of the token to query the existence of\n * @return bool whether the token exists\n */\n function _exists(uint256 tokenId) internal view returns (bool) {\n address owner = _tokenOwner[tokenId];\n return owner != address(0);\n }\n\n /**\n * @dev Returns whether the given spender can transfer a given token ID.\n * @param spender address of the spender to query\n * @param tokenId uint256 ID of the token to be transferred\n * @return bool whether the msg.sender is approved for the given token ID,\n * is an operator of the owner, or is the owner of the token\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view returns (bool) {\n require(_exists(tokenId), \"ERC721: operator query for nonexistent token\");\n address owner = ownerOf(tokenId);\n return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to The address that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _tokenOwner[tokenId] = to;\n _ownedTokensCount[to].increment();\n\n emit Transfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n require(ownerOf(tokenId) == owner, \"ERC721: burn of token that is not own\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[owner].decrement();\n _tokenOwner[tokenId] = address(0);\n\n emit Transfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(uint256 tokenId) internal {\n _burn(ownerOf(tokenId), tokenId);\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n require(ownerOf(tokenId) == from, \"ERC721: transfer of token that is not own\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[from].decrement();\n _ownedTokensCount[to].increment();\n\n _tokenOwner[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n }\n\n /**\n * @dev Internal function to invoke `onERC721Received` on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * This function is deprecated.\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data)\n internal returns (bool)\n {\n if (!to.isContract()) {\n return true;\n }\n\n bytes4 retval = IERC721Receiver(to).onERC721Received(msg.sender, from, tokenId, _data);\n return (retval == _ERC721_RECEIVED);\n }\n\n /**\n * @dev Private function to clear current approval of a given token ID.\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _clearApproval(uint256 tokenId) private {\n if (_tokenApprovals[tokenId] != address(0)) {\n _tokenApprovals[tokenId] = address(0);\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Enumerable is IERC721 {\n function totalSupply() public view returns (uint256);\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256 tokenId);\n\n function tokenByIndex(uint256 index) public view returns (uint256);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title ERC-721 Non-Fungible Token with optional enumeration extension logic\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Enumerable is ERC165, ERC721, IERC721Enumerable {\n // Mapping from owner to list of owned token IDs\n mapping(address => uint256[]) private _ownedTokens;\n\n // Mapping from token ID to index of the owner tokens list\n mapping(uint256 => uint256) private _ownedTokensIndex;\n\n // Array with all token ids, used for enumeration\n uint256[] private _allTokens;\n\n // Mapping from token id to position in the allTokens array\n mapping(uint256 => uint256) private _allTokensIndex;\n\n /*\n * bytes4(keccak256('totalSupply()')) == 0x18160ddd\n * bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59\n * bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7\n *\n * => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63\n */\n bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;\n\n /**\n * @dev Constructor function.\n */\n constructor () public {\n // register the supported interface to conform to ERC721Enumerable via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);\n }\n\n /**\n * @dev Gets the token ID at a given index of the tokens list of the requested owner.\n * @param owner address owning the tokens list to be accessed\n * @param index uint256 representing the index to be accessed of the requested tokens list\n * @return uint256 token ID at the given index of the tokens list owned by the requested address\n */\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) {\n require(index < balanceOf(owner), \"ERC721Enumerable: owner index out of bounds\");\n return _ownedTokens[owner][index];\n }\n\n /**\n * @dev Gets the total amount of tokens stored by the contract.\n * @return uint256 representing the total amount of tokens\n */\n function totalSupply() public view returns (uint256) {\n return _allTokens.length;\n }\n\n /**\n * @dev Gets the token ID at a given index of all the tokens in this contract\n * Reverts if the index is greater or equal to the total number of tokens.\n * @param index uint256 representing the index to be accessed of the tokens list\n * @return uint256 token ID at the given index of the tokens list\n */\n function tokenByIndex(uint256 index) public view returns (uint256) {\n require(index < totalSupply(), \"ERC721Enumerable: global index out of bounds\");\n return _allTokens[index];\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n super._transferFrom(from, to, tokenId);\n\n _removeTokenFromOwnerEnumeration(from, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to address the beneficiary that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n super._mint(to, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n\n _addTokenToAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n _removeTokenFromOwnerEnumeration(owner, tokenId);\n // Since tokenId will be deleted, we can clear its slot in _ownedTokensIndex to trigger a gas refund\n _ownedTokensIndex[tokenId] = 0;\n\n _removeTokenFromAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Gets the list of token IDs of the requested owner.\n * @param owner address owning the tokens\n * @return uint256[] List of token IDs owned by the requested address\n */\n function _tokensOfOwner(address owner) internal view returns (uint256[] storage) {\n return _ownedTokens[owner];\n }\n\n /**\n * @dev Private function to add a token to this extension's ownership-tracking data structures.\n * @param to address representing the new owner of the given token ID\n * @param tokenId uint256 ID of the token to be added to the tokens list of the given address\n */\n function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {\n _ownedTokensIndex[tokenId] = _ownedTokens[to].length;\n _ownedTokens[to].push(tokenId);\n }\n\n /**\n * @dev Private function to add a token to this extension's token tracking data structures.\n * @param tokenId uint256 ID of the token to be added to the tokens list\n */\n function _addTokenToAllTokensEnumeration(uint256 tokenId) private {\n _allTokensIndex[tokenId] = _allTokens.length;\n _allTokens.push(tokenId);\n }\n\n /**\n * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\n * while the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\n * gas optimizations e.g. when performing a transfer operation (avoiding double writes).\n * This has O(1) time complexity, but alters the order of the _ownedTokens array.\n * @param from address representing the previous owner of the given token ID\n * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address\n */\n function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {\n // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _ownedTokens[from].length.sub(1);\n uint256 tokenIndex = _ownedTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary\n if (tokenIndex != lastTokenIndex) {\n uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];\n\n _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n }\n\n // This also deletes the contents at the last position of the array\n _ownedTokens[from].length--;\n\n // Note that _ownedTokensIndex[tokenId] hasn't been cleared: it still points to the old slot (now occupied by\n // lastTokenId, or just over the end of the array if the token was the last one).\n }\n\n /**\n * @dev Private function to remove a token from this extension's token tracking data structures.\n * This has O(1) time complexity, but alters the order of the _allTokens array.\n * @param tokenId uint256 ID of the token to be removed from the tokens list\n */\n function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {\n // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _allTokens.length.sub(1);\n uint256 tokenIndex = _allTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so\n // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding\n // an 'if' statement (like in _removeTokenFromOwnerEnumeration)\n uint256 lastTokenId = _allTokens[lastTokenIndex];\n\n _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n\n // This also deletes the contents at the last position of the array\n _allTokens.length--;\n _allTokensIndex[tokenId] = 0;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Metadata is IERC721 {\n function name() external view returns (string memory);\n function symbol() external view returns (string memory);\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n\n\ncontract ERC721Metadata is ERC165, ERC721, IERC721Metadata {\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Optional mapping for token URIs\n mapping(uint256 => string) private _tokenURIs;\n\n /*\n * bytes4(keccak256('name()')) == 0x06fdde03\n * bytes4(keccak256('symbol()')) == 0x95d89b41\n * bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd\n *\n * => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f\n */\n bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;\n\n /**\n * @dev Constructor function\n */\n constructor (string memory name, string memory symbol) public {\n _name = name;\n _symbol = symbol;\n\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_METADATA);\n }\n\n /**\n * @dev Gets the token name.\n * @return string representing the token name\n */\n function name() external view returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Gets the token symbol.\n * @return string representing the token symbol\n */\n function symbol() external view returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns an URI for a given token ID.\n * Throws if the token ID does not exist. May return an empty string.\n * @param tokenId uint256 ID of the token to query\n */\n function tokenURI(uint256 tokenId) external view returns (string memory) {\n require(_exists(tokenId), \"ERC721Metadata: URI query for nonexistent token\");\n return _tokenURIs[tokenId];\n }\n\n /**\n * @dev Internal function to set the token URI for a given token.\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to set its URI\n * @param uri string URI to assign\n */\n function _setTokenURI(uint256 tokenId, string memory uri) internal {\n require(_exists(tokenId), \"ERC721Metadata: URI set of nonexistent token\");\n _tokenURIs[tokenId] = uri;\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned by the msg.sender\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n // Clear metadata (if any)\n if (bytes(_tokenURIs[tokenId]).length != 0) {\n delete _tokenURIs[tokenId];\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Full.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title Full ERC721 Token\n * This implementation includes all the required and some optional functionality of the ERC721 standard\n * Moreover, it includes approve all functionality using operator terminology\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Full is ERC721, ERC721Enumerable, ERC721Metadata {\n constructor (string memory name, string memory symbol) public ERC721Metadata(name, symbol) {\n // solhint-disable-previous-line no-empty-blocks\n }\n}\n", - "sourcePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "ast": { - "absolutePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "exportedSymbols": { - "Address": [ - 289 - ], - "Counters": [ - 336 - ], - "ERC165": [ - 386 - ], - "ERC721": [ - 944 - ], - "ERC721Enumerable": [ - 1302 - ], - "ERC721Full": [ - 1468 - ], - "ERC721Metadata": [ - 1448 - ], - "IERC165": [ - 23 - ], - "IERC721": [ - 124 - ], - "IERC721Enumerable": [ - 969 - ], - "IERC721Metadata": [ - 1323 - ], - "IERC721Receiver": [ - 139 - ], - "SafeMath": [ - 271 - ] - }, - "id": 1469, - "nodeType": "SourceUnit", - "nodes": [ - { - "id": 15, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "61:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "interface", - "documentation": "@dev Interface of the ERC165 standard, as defined in the\n[EIP](https://eips.ethereum.org/EIPS/eip-165).\n * Implementers can declare support of contract interfaces, which can then be\nqueried by others (`ERC165Checker`).\n * For an implementation, see `ERC165`.", - "fullyImplemented": false, - "id": 23, - "linearizedBaseContracts": [ - 23 - ], - "name": "IERC165", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@dev Returns true if this contract implements the interface defined by\n`interfaceId`. 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This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. This\nfunction MAY throw to revert and reject the transfer.\nNote: the ERC721 contract address is always the message sender.\n@param operator The address which called `safeTransferFrom` function\n@param from The address which previously owned the token\n@param tokenId The NFT identifier which is being transferred\n@param data Additional data with no specified format\n@return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`", - "id": 138, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "onERC721Received", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 134, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 127, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3960:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 126, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "3960:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 129, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3978:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 128, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "3978:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 131, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3992:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 130, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "3992:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 133, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "4009:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 132, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "4009:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "3959:68:1" - }, - "returnParameters": { - "id": 137, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 136, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "4048:6:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 135, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "4048:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "4047:8:1" - }, - "scope": 139, - "src": "3934:122:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "3045:1013:1" - }, - { - "id": 140, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "4112:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "library", - "documentation": "@dev Wrappers over Solidity's arithmetic operations with added overflow\nchecks.\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\nin bugs, because programmers usually assume that an overflow raises an\nerror, which is the standard behavior in high level programming languages.\n`SafeMath` restores this intuition by reverting the transaction when an\noperation overflows.\n * Using this library instead of the unchecked operations eliminates an entire\nclass of bugs, so it's recommended to use it always.", - "fullyImplemented": true, - "id": 271, - "linearizedBaseContracts": [ - 271 - ], - "name": "SafeMath", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": { - "id": 164, - "nodeType": "Block", - "src": "5013:109:1", - "statements": [ - { - "assignments": [ - 150 - ], - "declarations": [ - { - "constant": false, - "id": 150, - "name": "c", - "nodeType": "VariableDeclaration", - "scope": 164, - "src": "5023:9:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 149, - 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"names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - 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Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - 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"typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "29224:15:1" - }, - "returnParameters": { - "id": 1146, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1145, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 1152, - "src": "29263:17:1", - "stateVariable": false, - "storageLocation": "storage", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - }, - "typeName": { - "baseType": { - "id": 1143, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "29263:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1144, - "length": null, - "nodeType": "ArrayTypeName", - "src": "29263:9:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - } - }, - "value": null, - "visibility": "internal" - 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"src": "30073:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1184, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30100:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1185, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30100:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "30073:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1187, - "nodeType": "ExpressionStatement", - "src": "30073:44:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1191, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1178, - "src": "30143:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1188, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30127:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1190, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "push", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30127:15:1", - "typeDescriptions": { - "typeIdentifier": "t_function_arraypush_nonpayable$_t_uint256_$returns$_t_uint256_$", - "typeString": "function (uint256) returns (uint256)" - } - }, - "id": 1192, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "30127:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1193, - "nodeType": "ExpressionStatement", - "src": "30127:24:1" - } - ] - }, - "documentation": "@dev Private function to add a token to this extension's token tracking data structures.\n@param tokenId uint256 ID of the token to be added to the tokens list", - "id": 1195, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1179, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1178, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1195, - "src": "30038:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1177, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30038:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30037:17:1" - }, - "returnParameters": { - "id": 1180, - "nodeType": "ParameterList", - "parameters": [], - "src": "30063:0:1" - }, - "scope": 1302, - "src": "29997:161:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1251, - "nodeType": "Block", - "src": "30854:1047:1", - "statements": [ - { - "assignments": [ - 1203 - ], - "declarations": [ - { - "constant": false, - "id": 1203, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1251, - "src": "31035:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1202, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31035:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1211, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1209, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "31090:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1204, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31060:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1206, - "indexExpression": { - "argumentTypes": null, - "id": 1205, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31073:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31060:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1207, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31060:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1208, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "31060:29:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1210, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "31060:32:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31035:57:1" - }, - { - "assignments": [ - 1213 - ], - "declarations": [ - { - "constant": false, - "id": 1213, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1251, - "src": "31102:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1212, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31102:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1217, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1214, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31123:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1216, - "indexExpression": { - "argumentTypes": null, - "id": 1215, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1199, - "src": "31141:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31123:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31102:47:1" - }, - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "id": 1220, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 1218, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31253:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "id": 1219, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31267:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31253:28:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 1244, - "nodeType": "IfStatement", - "src": "31249:323:1", - "trueBody": { - "id": 1243, - "nodeType": "Block", - "src": "31283:289:1", - "statements": [ - { - "assignments": [ - 1222 - ], - "declarations": [ - { - "constant": false, - "id": 1222, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1243, - "src": "31297:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1221, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31297:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1228, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1223, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31319:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1225, - "indexExpression": { - "argumentTypes": null, - "id": 1224, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31332:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1227, - "indexExpression": { - "argumentTypes": null, - "id": 1226, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31338:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:34:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - 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"isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - 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"typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 47, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "1257:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1207:64:1" - }, - "src": "1187:85:1" - }, - { - "body": null, - "documentation": "@dev Returns the number of NFTs in `owner`'s account.", - "id": 57, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "balanceOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 53, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 52, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 57, - "src": "1374:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 51, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1374:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1373:15:1" - }, - "returnParameters": { - "id": 56, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 55, - "name": "balance", - "nodeType": "VariableDeclaration", - "scope": 57, - "src": "1410:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 54, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1410:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1409:17:1" - }, - "scope": 124, - "src": "1355:72:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Returns the owner of the NFT specified by `tokenId`.", - "id": 64, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "ownerOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 60, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 59, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1531:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 58, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1531:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1530:17:1" - }, - "returnParameters": { - "id": 63, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 62, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1569:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 61, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1569:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1568:15:1" - }, - "scope": 124, - "src": "1514:70:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * \n * Requirements:\n- `from`, `to` cannot be zero.\n- `tokenId` must be owned by `from`.\n- If the caller is not `from`, it must be have been allowed to move this\nNFT by either `approve` or `setApproveForAll`.", - "id": 73, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 71, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 66, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "1992:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 65, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1992:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 68, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2006:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 67, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2006:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 70, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2018:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 69, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2018:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1991:43:1" - }, - "returnParameters": { - "id": 72, - "nodeType": "ParameterList", - "parameters": [], - "src": "2041:0:1" - }, - "scope": 124, - "src": "1966:76:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * Requirements:\n- If the caller is not `from`, it must be approved to move this NFT by\neither `approve` or `setApproveForAll`.", - "id": 82, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 80, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 75, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2339:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 74, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2339:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 77, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2353:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 76, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2353:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 79, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2365:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 78, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2365:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2338:43:1" - }, - "returnParameters": { - "id": 81, - "nodeType": "ParameterList", - "parameters": [], - "src": "2388:0:1" - }, - "scope": 124, - "src": "2317:72:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 89, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "approve", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 87, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 84, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2411:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 83, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2411:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 86, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2423:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 85, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2423:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2410:29:1" - }, - "returnParameters": { - "id": 88, - "nodeType": "ParameterList", - "parameters": [], - "src": "2446:0:1" - }, - "scope": 124, - "src": "2394:53:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 96, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "getApproved", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 92, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 91, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2473:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 90, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2473:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2472:17:1" - }, - "returnParameters": { - "id": 95, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 94, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2511:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 93, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2511:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2510:18:1" - }, - "scope": 124, - "src": "2452:77:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 103, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "setApprovalForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 101, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 98, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2562:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 97, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2562:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 100, - "name": "_approved", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2580:14:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 99, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2580:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2561:34:1" - }, - "returnParameters": { - "id": 102, - "nodeType": "ParameterList", - "parameters": [], - "src": "2602:0:1" - }, - "scope": 124, - "src": "2535:68:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 112, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "isApprovedForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 108, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 105, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2634:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 104, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2634:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 107, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2649:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 106, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2649:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2633:33:1" - }, - "returnParameters": { - "id": 111, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 110, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2688:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 109, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2688:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2687:6:1" - }, - "scope": 124, - "src": "2608:86:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 123, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 121, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 114, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2727:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 113, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2727:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 116, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2741:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 115, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2741:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 118, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2753:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 117, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2753:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 120, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2770:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 119, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "2770:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2726:62:1" - }, - "returnParameters": { - "id": 122, - "nodeType": "ParameterList", - "parameters": [], - "src": "2795:0:1" - }, - "scope": 124, - "src": "2701:95:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "972:1826:1" - }, - { - "id": 125, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "2867:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "contract", - "documentation": "@title ERC721 token receiver interface\n@dev Interface for any contract that wants to support safeTransfers\nfrom ERC721 asset contracts.", - "fullyImplemented": false, - "id": 139, - "linearizedBaseContracts": [ - 139 - ], - "name": "IERC721Receiver", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@notice Handle the receipt of an NFT\n@dev The ERC721 smart contract calls this function on the recipient\nafter a `safeTransfer`. This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. 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"names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - 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Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - }, - "returnParameters": { - "id": 370, - "nodeType": "ParameterList", - "parameters": [], - "src": "11598:0:1" - }, - "scope": 386, - "src": "11541:190:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "10321:1412:1" - }, - { - "id": 387, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "11793:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 388, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "11968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 389, - "nodeType": "InheritanceSpecifier", - "src": "11968:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 390, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "11976:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 391, - "nodeType": "InheritanceSpecifier", - "src": "11976:7:1" - } - ], - "contractDependencies": [ - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 944, - "linearizedBaseContracts": [ - 944, - 124, - 386, - 23 - ], - "name": "ERC721", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 394, - "libraryName": { - "contractScope": null, - "id": 392, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "11996:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "11990:27:1", - "typeName": { - "id": 393, - "name": "uint256", - 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"typeString": "library Counters" - } - }, - "nodeType": "UsingForDirective", - "src": "12053:36:1", - "typeName": { - "contractScope": null, - "id": 399, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12072:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - { - "constant": true, - "id": 403, - "name": "_ERC721_RECEIVED", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12267:53:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 401, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "12267:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783135306237613032", - "id": 402, - "isConstant": false, - 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"typeIdentifier": "t_mapping$_t_address_$_t_struct$_Counter_$296_storage_$", - "typeString": "mapping(address => struct Counters.Counter)" - }, - "valueType": { - "contractScope": null, - "id": 413, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12599:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 421, - "name": "_operatorApprovals", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12697:73:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", - "typeString": "mapping(address => mapping(address => bool))" - }, - "typeName": { - "id": 420, - "keyType": { - "id": 416, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12706:7:1", - 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"nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "27799:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1077, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27799:47:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1078, - "nodeType": "ExpressionStatement", - "src": "27799:47:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1080, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1061, - "src": "27885:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1081, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1063, - "src": "27889:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1079, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "27857:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1082, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27857:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1083, - "nodeType": "ExpressionStatement", - "src": "27857:40:1" - } - ] - }, - "documentation": "@dev Internal function to transfer ownership of a given token ID to another address.\nAs opposed to transferFrom, this imposes no restrictions on msg.sender.\n@param from current owner of the token\n@param to address to receive the ownership of the given token ID\n@param tokenId uint256 ID of the token to be transferred", - "id": 1085, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1064, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1059, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27688:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1058, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27688:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1061, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27702:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1060, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27702:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1063, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27714:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1062, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "27714:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "27687:43:1" - }, - "returnParameters": { - "id": 1065, - "nodeType": "ParameterList", - "parameters": [], - "src": "27740:0:1" - }, - "scope": 1302, - "src": "27665:239:1", - "stateMutability": "nonpayable", - "superFunction": 880, - "visibility": "internal" - }, - { - "body": { - "id": 1108, - "nodeType": "Block", - "src": "28214:143:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1095, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28236:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1096, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28240:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1092, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28224:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1094, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_mint", - "nodeType": "MemberAccess", - "referencedDeclaration": 768, - "src": "28224:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1097, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28224:24:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1098, - "nodeType": "ExpressionStatement", - "src": "28224:24:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1100, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28287:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1101, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28291:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1099, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "28259:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1102, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28259:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1103, - "nodeType": "ExpressionStatement", - "src": "28259:40:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1105, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28342:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1104, - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1195, - "src": "28310:31:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1106, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28310:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1107, - "nodeType": "ExpressionStatement", - "src": "28310:40:1" - } - ] - }, - "documentation": "@dev Internal function to mint a new token.\nReverts if the given token ID already exists.\n@param to address the beneficiary that will own the minted token\n@param tokenId uint256 ID of the token to be minted", - "id": 1109, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_mint", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1090, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1087, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28176:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1086, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28176:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1089, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28188:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1088, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28188:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28175:29:1" - }, - "returnParameters": { - "id": 1091, - "nodeType": "ParameterList", - "parameters": [], - "src": "28214:0:1" - }, - "scope": 1302, - "src": "28161:196:1", - "stateMutability": "nonpayable", - "superFunction": 768, - "visibility": "internal" - }, - { - "body": { - "id": 1138, - "nodeType": "Block", - "src": "28688:308:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1119, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28710:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1120, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28717:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1116, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28698:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1118, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_burn", - "nodeType": "MemberAccess", - "referencedDeclaration": 811, - "src": "28698:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1121, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28698:27:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1122, - "nodeType": "ExpressionStatement", - "src": "28698:27:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1124, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28769:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1125, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28776:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1123, - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "28736:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1126, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28736:48:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1127, - "nodeType": "ExpressionStatement", - "src": "28736:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1132, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1128, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "28903:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1130, - "indexExpression": { - "argumentTypes": null, - "id": 1129, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28921:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "28903:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1131, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "28932:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "28903:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1133, - "nodeType": "ExpressionStatement", - "src": "28903:30:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1135, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28981:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1134, - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1301, - "src": "28944:36:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1136, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28944:45:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1137, - "nodeType": "ExpressionStatement", - "src": "28944:45:1" - } - ] - }, - "documentation": "@dev Internal function to burn a specific token.\nReverts if the token does not exist.\nDeprecated, use _burn(uint256) instead.\n@param owner owner of the token to burn\n@param tokenId uint256 ID of the token being burned", - "id": 1139, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_burn", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1114, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1111, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28647:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1110, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28647:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1113, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28662:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1112, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28662:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28646:32:1" - }, - "returnParameters": { - "id": 1115, - "nodeType": "ParameterList", - "parameters": [], - "src": "28688:0:1" - }, - "scope": 1302, - "src": "28632:364:1", - "stateMutability": "nonpayable", - "superFunction": 811, - "visibility": "internal" - 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"typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "32485:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1259, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32463:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1260, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "32463:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1261, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1265, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32497:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1270, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1267, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "32518:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1269, - "indexExpression": { - "argumentTypes": null, - "id": 1268, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "32534:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32518:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32497:45:1" - }, - { - "assignments": [ - 1272 - ], - "declarations": [ - { - "constant": false, - "id": 1272, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32864:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1271, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32864:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1276, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1273, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32886:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1275, - "indexExpression": { - "argumentTypes": null, - "id": 1274, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1258, - "src": "32897:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32886:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32864:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1281, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1277, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32923:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1279, - "indexExpression": { - "argumentTypes": null, - "id": 1278, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "32934:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "32923:22:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1280, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "32948:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "32923:36:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1282, - "nodeType": "ExpressionStatement", - "src": "32923:36:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1287, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1283, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33027:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1285, - "indexExpression": { - "argumentTypes": null, - "id": 1284, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "33043:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33027:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1286, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "33058:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "33027:41:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1288, - "nodeType": "ExpressionStatement", - "src": "33027:41:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1292, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "33189:19:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1289, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "33189:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1291, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "33189:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1293, - "nodeType": "ExpressionStatement", - "src": "33189:19:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1298, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1294, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33218:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1296, - "indexExpression": { - "argumentTypes": null, - "id": 1295, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "33234:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33218:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1297, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "33245:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "33218:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1299, - "nodeType": "ExpressionStatement", - "src": "33218:28:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's token tracking data structures.\nThis has O(1) time complexity, but alters the order of the _allTokens array.\n@param tokenId uint256 ID of the token to be removed from the tokens list", - "id": 1301, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1255, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1254, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1301, - "src": "32235:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1253, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32235:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "32234:17:1" - }, - "returnParameters": { - "id": 1256, - "nodeType": "ParameterList", - "parameters": [], - "src": "32260:0:1" - }, - "scope": 1302, - "src": "32189:1064:1", - "stateMutability": "nonpayable", - 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May return an empty string.\n@param tokenId uint256 ID of the token to query", - "id": 1396, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "tokenURI", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1380, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1379, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1396, - "src": "35304:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1378, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "35304:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "35303:17:1" - }, - "returnParameters": { - "id": 1383, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1382, - "name": "", - 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"src": "36846:16:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1454, - "name": "ERC721Metadata", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 1448, - "src": "36864:14:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721Metadata_$1448", - "typeString": "contract ERC721Metadata" - } - }, - "id": 1455, - "nodeType": "InheritanceSpecifier", - "src": "36864:14:1" - } - ], - "contractDependencies": [ - 944, - 969, - 23, - 124, - 386, - 1302, - 1323, - 1448 - ], - "contractKind": "contract", - "documentation": "@title Full ERC721 Token\nThis implementation includes all the required and some optional functionality of the ERC721 standard\nMoreover, it includes approve all functionality using operator terminology\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 1468, - "linearizedBaseContracts": [ - 1468, - 1448, - 1323, - 1302, - 969, - 944, - 124, - 386, - 23 - ], - "name": "ERC721Full", - 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"devdoc": { - "details": "Required interface of an ERC721 compliant contract.", - "methods": { - "balanceOf(address)": { - "details": "Returns the number of NFTs in `owner`'s account." - }, - "ownerOf(uint256)": { - "details": "Returns the owner of the NFT specified by `tokenId`." - }, - "safeTransferFrom(address,address,uint256)": { - "details": "Transfers a specific NFT (`tokenId`) from one account (`from`) to another (`to`). * * Requirements: - `from`, `to` cannot be zero. - `tokenId` must be owned by `from`. - If the caller is not `from`, it must be have been allowed to move this NFT by either `approve` or `setApproveForAll`." - }, - "supportsInterface(bytes4)": { - "details": "Returns true if this contract implements the interface defined by `interfaceId`. See the corresponding [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified) to learn more about how these ids are created. * This function call must use less than 30 000 gas." - }, - "transferFrom(address,address,uint256)": { - "details": "Transfers a specific NFT (`tokenId`) from one account (`from`) to another (`to`). * Requirements: - If the caller is not `from`, it must be approved to move this NFT by either `approve` or `setApproveForAll`." - } - } - }, - "userdoc": { - "methods": {} - } -} \ No newline at end of file diff --git a/src/abis/IERC721Enumerable.json b/src/abis/IERC721Enumerable.json deleted file mode 100644 index e5e0df8..0000000 --- a/src/abis/IERC721Enumerable.json +++ /dev/null @@ -1,37793 +0,0 @@ -{ - "contractName": "IERC721Enumerable", - "abi": [ - { - "constant": true, - "inputs": [ - { - "name": "interfaceId", - "type": "bytes4" - } - ], - "name": "supportsInterface", - "outputs": [ - { - "name": "", - "type": "bool" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "getApproved", - "outputs": [ - { - "name": "operator", - "type": "address" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "approve", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "from", - "type": "address" - }, - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "transferFrom", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "from", - "type": "address" - }, - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "safeTransferFrom", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "ownerOf", - "outputs": [ - { - "name": "owner", - "type": "address" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "owner", - "type": "address" - } - ], - "name": "balanceOf", - "outputs": [ - { - "name": "balance", - "type": "uint256" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "operator", - "type": "address" - }, - { - "name": "_approved", - "type": "bool" - } - ], - "name": "setApprovalForAll", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "from", - "type": "address" - }, - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - }, - { - "name": "data", - "type": "bytes" - } - ], - "name": "safeTransferFrom", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "owner", - "type": "address" - }, - { - "name": "operator", - "type": "address" - } - ], - "name": "isApprovedForAll", - "outputs": [ - { - "name": "", - "type": "bool" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "anonymous": false, - "inputs": [ - { - "indexed": true, - "name": "from", - "type": "address" - }, - { - "indexed": true, - "name": "to", - "type": "address" - }, - { - "indexed": true, - "name": "tokenId", - "type": "uint256" - } - ], - "name": "Transfer", - "type": "event" - }, - { - "anonymous": false, - "inputs": [ - { - "indexed": true, - "name": "owner", - "type": "address" - }, - { - "indexed": true, - "name": "approved", - "type": "address" - }, - { - "indexed": true, - "name": "tokenId", - "type": "uint256" - } - ], - "name": "Approval", - "type": "event" - }, - { - "anonymous": false, - "inputs": [ - { - "indexed": true, - "name": "owner", - "type": "address" - }, - { - "indexed": true, - "name": "operator", - "type": "address" - }, - { - "indexed": false, - "name": "approved", - "type": "bool" - } - ], - "name": "ApprovalForAll", - "type": "event" - }, - { - "constant": true, - "inputs": [], - "name": "totalSupply", - "outputs": [ - { - "name": "", - "type": "uint256" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "owner", - "type": "address" - }, - { - "name": "index", - "type": "uint256" - } - ], - "name": "tokenOfOwnerByIndex", - "outputs": [ - { - "name": "tokenId", - "type": "uint256" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "index", - "type": "uint256" - } - ], - "name": "tokenByIndex", - "outputs": [ - { - "name": "", - "type": "uint256" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - } - ], - "bytecode": "0x", - "deployedBytecode": "0x", - "sourceMap": "", - "deployedSourceMap": "", - "source": "\n// File: @openzeppelin/contracts/introspection/IERC165.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * [EIP](https://eips.ethereum.org/EIPS/eip-165).\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others (`ERC165Checker`).\n *\n * For an implementation, see `ERC165`.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ncontract IERC721 is IERC165 {\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of NFTs in `owner`'s account.\n */\n function balanceOf(address owner) public view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the NFT specified by `tokenId`.\n */\n function ownerOf(uint256 tokenId) public view returns (address owner);\n\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * \n *\n * Requirements:\n * - `from`, `to` cannot be zero.\n * - `tokenId` must be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this\n * NFT by either `approve` or `setApproveForAll`.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public;\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * Requirements:\n * - If the caller is not `from`, it must be approved to move this NFT by\n * either `approve` or `setApproveForAll`.\n */\n function transferFrom(address from, address to, uint256 tokenId) public;\n function approve(address to, uint256 tokenId) public;\n function getApproved(uint256 tokenId) public view returns (address operator);\n\n function setApprovalForAll(address operator, bool _approved) public;\n function isApprovedForAll(address owner, address operator) public view returns (bool);\n\n\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public;\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ncontract IERC721Receiver {\n /**\n * @notice Handle the receipt of an NFT\n * @dev The ERC721 smart contract calls this function on the recipient\n * after a `safeTransfer`. This function MUST return the function selector,\n * otherwise the caller will revert the transaction. The selector to be\n * returned can be obtained as `this.onERC721Received.selector`. This\n * function MAY throw to revert and reject the transfer.\n * Note: the ERC721 contract address is always the message sender.\n * @param operator The address which called `safeTransferFrom` function\n * @param from The address which previously owned the token\n * @param tokenId The NFT identifier which is being transferred\n * @param data Additional data with no specified format\n * @return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n */\n function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data)\n public returns (bytes4);\n}\n\n// File: @openzeppelin/contracts/math/SafeMath.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\n * checks.\n *\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\n * in bugs, because programmers usually assume that an overflow raises an\n * error, which is the standard behavior in high level programming languages.\n * `SafeMath` restores this intuition by reverting the transaction when an\n * operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeMath {\n /**\n * @dev Returns the addition of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `+` operator.\n *\n * Requirements:\n * - Addition cannot overflow.\n */\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting on\n * overflow (when the result is negative).\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n * - Subtraction cannot overflow.\n */\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b <= a, \"SafeMath: subtraction overflow\");\n uint256 c = a - b;\n\n return c;\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `*` operator.\n *\n * Requirements:\n * - Multiplication cannot overflow.\n */\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers. Reverts on\n * division by zero. The result is rounded towards zero.\n *\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n * uses an invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n // Solidity only automatically asserts when dividing by 0\n require(b > 0, \"SafeMath: division by zero\");\n uint256 c = a / b;\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n return c;\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * Reverts when dividing by zero.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b != 0, \"SafeMath: modulo by zero\");\n return a % b;\n }\n}\n\n// File: @openzeppelin/contracts/utils/Address.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Collection of functions related to the address type,\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * This test is non-exhaustive, and there may be false-negatives: during the\n * execution of a contract's constructor, its address will be reported as\n * not containing a contract.\n *\n * > It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies in extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n}\n\n// File: @openzeppelin/contracts/drafts/Counters.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title Counters\n * @author Matt Condon (@shrugs)\n * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number\n * of elements in a mapping, issuing ERC721 ids, or counting request ids.\n *\n * Include with `using Counters for Counters.Counter;`\n * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath\n * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never\n * directly accessed.\n */\nlibrary Counters {\n using SafeMath for uint256;\n\n struct Counter {\n // This variable should never be directly accessed by users of the library: interactions must be restricted to\n // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add\n // this feature: see https://github.com/ethereum/solidity/issues/4637\n uint256 _value; // default: 0\n }\n\n function current(Counter storage counter) internal view returns (uint256) {\n return counter._value;\n }\n\n function increment(Counter storage counter) internal {\n counter._value += 1;\n }\n\n function decrement(Counter storage counter) internal {\n counter._value = counter._value.sub(1);\n }\n}\n\n// File: @openzeppelin/contracts/introspection/ERC165.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Implementation of the `IERC165` interface.\n *\n * Contracts may inherit from this and call `_registerInterface` to declare\n * their support of an interface.\n */\ncontract ERC165 is IERC165 {\n /*\n * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7\n */\n bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;\n\n /**\n * @dev Mapping of interface ids to whether or not it's supported.\n */\n mapping(bytes4 => bool) private _supportedInterfaces;\n\n constructor () internal {\n // Derived contracts need only register support for their own interfaces,\n // we register support for ERC165 itself here\n _registerInterface(_INTERFACE_ID_ERC165);\n }\n\n /**\n * @dev See `IERC165.supportsInterface`.\n *\n * Time complexity O(1), guaranteed to always use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool) {\n return _supportedInterfaces[interfaceId];\n }\n\n /**\n * @dev Registers the contract as an implementer of the interface defined by\n * `interfaceId`. Support of the actual ERC165 interface is automatic and\n * registering its interface id is not required.\n *\n * See `IERC165.supportsInterface`.\n *\n * Requirements:\n *\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).\n */\n function _registerInterface(bytes4 interfaceId) internal {\n require(interfaceId != 0xffffffff, \"ERC165: invalid interface id\");\n _supportedInterfaces[interfaceId] = true;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n\n\n\n/**\n * @title ERC721 Non-Fungible Token Standard basic implementation\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721 is ERC165, IERC721 {\n using SafeMath for uint256;\n using Address for address;\n using Counters for Counters.Counter;\n\n // Equals to `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`\n bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;\n\n // Mapping from token ID to owner\n mapping (uint256 => address) private _tokenOwner;\n\n // Mapping from token ID to approved address\n mapping (uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to number of owned token\n mapping (address => Counters.Counter) private _ownedTokensCount;\n\n // Mapping from owner to operator approvals\n mapping (address => mapping (address => bool)) private _operatorApprovals;\n\n /*\n * bytes4(keccak256('balanceOf(address)')) == 0x70a08231\n * bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e\n * bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3\n * bytes4(keccak256('getApproved(uint256)')) == 0x081812fc\n * bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465\n * bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c\n * bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd\n * bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e\n * bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde\n *\n * => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^\n * 0xa22cb465 ^ 0xe985e9c ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd\n */\n bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;\n\n constructor () public {\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721);\n }\n\n /**\n * @dev Gets the balance of the specified address.\n * @param owner address to query the balance of\n * @return uint256 representing the amount owned by the passed address\n */\n function balanceOf(address owner) public view returns (uint256) {\n require(owner != address(0), \"ERC721: balance query for the zero address\");\n\n return _ownedTokensCount[owner].current();\n }\n\n /**\n * @dev Gets the owner of the specified token ID.\n * @param tokenId uint256 ID of the token to query the owner of\n * @return address currently marked as the owner of the given token ID\n */\n function ownerOf(uint256 tokenId) public view returns (address) {\n address owner = _tokenOwner[tokenId];\n require(owner != address(0), \"ERC721: owner query for nonexistent token\");\n\n return owner;\n }\n\n /**\n * @dev Approves another address to transfer the given token ID\n * The zero address indicates there is no approved address.\n * There can only be one approved address per token at a given time.\n * Can only be called by the token owner or an approved operator.\n * @param to address to be approved for the given token ID\n * @param tokenId uint256 ID of the token to be approved\n */\n function approve(address to, uint256 tokenId) public {\n address owner = ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(msg.sender == owner || isApprovedForAll(owner, msg.sender),\n \"ERC721: approve caller is not owner nor approved for all\"\n );\n\n _tokenApprovals[tokenId] = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Gets the approved address for a token ID, or zero if no address set\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to query the approval of\n * @return address currently approved for the given token ID\n */\n function getApproved(uint256 tokenId) public view returns (address) {\n require(_exists(tokenId), \"ERC721: approved query for nonexistent token\");\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev Sets or unsets the approval of a given operator\n * An operator is allowed to transfer all tokens of the sender on their behalf.\n * @param to operator address to set the approval\n * @param approved representing the status of the approval to be set\n */\n function setApprovalForAll(address to, bool approved) public {\n require(to != msg.sender, \"ERC721: approve to caller\");\n\n _operatorApprovals[msg.sender][to] = approved;\n emit ApprovalForAll(msg.sender, to, approved);\n }\n\n /**\n * @dev Tells whether an operator is approved by a given owner.\n * @param owner owner address which you want to query the approval of\n * @param operator operator address which you want to query the approval of\n * @return bool whether the given operator is approved by the given owner\n */\n function isApprovedForAll(address owner, address operator) public view returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev Transfers the ownership of a given token ID to another address.\n * Usage of this method is discouraged, use `safeTransferFrom` whenever possible.\n * Requires the msg.sender to be the owner, approved, or operator.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function transferFrom(address from, address to, uint256 tokenId) public {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(msg.sender, tokenId), \"ERC721: transfer caller is not owner nor approved\");\n\n _transferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes data to send along with a safe transfer check\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public {\n transferFrom(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, _data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns whether the specified token exists.\n * @param tokenId uint256 ID of the token to query the existence of\n * @return bool whether the token exists\n */\n function _exists(uint256 tokenId) internal view returns (bool) {\n address owner = _tokenOwner[tokenId];\n return owner != address(0);\n }\n\n /**\n * @dev Returns whether the given spender can transfer a given token ID.\n * @param spender address of the spender to query\n * @param tokenId uint256 ID of the token to be transferred\n * @return bool whether the msg.sender is approved for the given token ID,\n * is an operator of the owner, or is the owner of the token\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view returns (bool) {\n require(_exists(tokenId), \"ERC721: operator query for nonexistent token\");\n address owner = ownerOf(tokenId);\n return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to The address that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _tokenOwner[tokenId] = to;\n _ownedTokensCount[to].increment();\n\n emit Transfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n require(ownerOf(tokenId) == owner, \"ERC721: burn of token that is not own\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[owner].decrement();\n _tokenOwner[tokenId] = address(0);\n\n emit Transfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(uint256 tokenId) internal {\n _burn(ownerOf(tokenId), tokenId);\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n require(ownerOf(tokenId) == from, \"ERC721: transfer of token that is not own\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[from].decrement();\n _ownedTokensCount[to].increment();\n\n _tokenOwner[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n }\n\n /**\n * @dev Internal function to invoke `onERC721Received` on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * This function is deprecated.\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data)\n internal returns (bool)\n {\n if (!to.isContract()) {\n return true;\n }\n\n bytes4 retval = IERC721Receiver(to).onERC721Received(msg.sender, from, tokenId, _data);\n return (retval == _ERC721_RECEIVED);\n }\n\n /**\n * @dev Private function to clear current approval of a given token ID.\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _clearApproval(uint256 tokenId) private {\n if (_tokenApprovals[tokenId] != address(0)) {\n _tokenApprovals[tokenId] = address(0);\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Enumerable is IERC721 {\n function totalSupply() public view returns (uint256);\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256 tokenId);\n\n function tokenByIndex(uint256 index) public view returns (uint256);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title ERC-721 Non-Fungible Token with optional enumeration extension logic\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Enumerable is ERC165, ERC721, IERC721Enumerable {\n // Mapping from owner to list of owned token IDs\n mapping(address => uint256[]) private _ownedTokens;\n\n // Mapping from token ID to index of the owner tokens list\n mapping(uint256 => uint256) private _ownedTokensIndex;\n\n // Array with all token ids, used for enumeration\n uint256[] private _allTokens;\n\n // Mapping from token id to position in the allTokens array\n mapping(uint256 => uint256) private _allTokensIndex;\n\n /*\n * bytes4(keccak256('totalSupply()')) == 0x18160ddd\n * bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59\n * bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7\n *\n * => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63\n */\n bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;\n\n /**\n * @dev Constructor function.\n */\n constructor () public {\n // register the supported interface to conform to ERC721Enumerable via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);\n }\n\n /**\n * @dev Gets the token ID at a given index of the tokens list of the requested owner.\n * @param owner address owning the tokens list to be accessed\n * @param index uint256 representing the index to be accessed of the requested tokens list\n * @return uint256 token ID at the given index of the tokens list owned by the requested address\n */\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) {\n require(index < balanceOf(owner), \"ERC721Enumerable: owner index out of bounds\");\n return _ownedTokens[owner][index];\n }\n\n /**\n * @dev Gets the total amount of tokens stored by the contract.\n * @return uint256 representing the total amount of tokens\n */\n function totalSupply() public view returns (uint256) {\n return _allTokens.length;\n }\n\n /**\n * @dev Gets the token ID at a given index of all the tokens in this contract\n * Reverts if the index is greater or equal to the total number of tokens.\n * @param index uint256 representing the index to be accessed of the tokens list\n * @return uint256 token ID at the given index of the tokens list\n */\n function tokenByIndex(uint256 index) public view returns (uint256) {\n require(index < totalSupply(), \"ERC721Enumerable: global index out of bounds\");\n return _allTokens[index];\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n super._transferFrom(from, to, tokenId);\n\n _removeTokenFromOwnerEnumeration(from, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to address the beneficiary that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n super._mint(to, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n\n _addTokenToAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n _removeTokenFromOwnerEnumeration(owner, tokenId);\n // Since tokenId will be deleted, we can clear its slot in _ownedTokensIndex to trigger a gas refund\n _ownedTokensIndex[tokenId] = 0;\n\n _removeTokenFromAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Gets the list of token IDs of the requested owner.\n * @param owner address owning the tokens\n * @return uint256[] List of token IDs owned by the requested address\n */\n function _tokensOfOwner(address owner) internal view returns (uint256[] storage) {\n return _ownedTokens[owner];\n }\n\n /**\n * @dev Private function to add a token to this extension's ownership-tracking data structures.\n * @param to address representing the new owner of the given token ID\n * @param tokenId uint256 ID of the token to be added to the tokens list of the given address\n */\n function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {\n _ownedTokensIndex[tokenId] = _ownedTokens[to].length;\n _ownedTokens[to].push(tokenId);\n }\n\n /**\n * @dev Private function to add a token to this extension's token tracking data structures.\n * @param tokenId uint256 ID of the token to be added to the tokens list\n */\n function _addTokenToAllTokensEnumeration(uint256 tokenId) private {\n _allTokensIndex[tokenId] = _allTokens.length;\n _allTokens.push(tokenId);\n }\n\n /**\n * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\n * while the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\n * gas optimizations e.g. when performing a transfer operation (avoiding double writes).\n * This has O(1) time complexity, but alters the order of the _ownedTokens array.\n * @param from address representing the previous owner of the given token ID\n * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address\n */\n function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {\n // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _ownedTokens[from].length.sub(1);\n uint256 tokenIndex = _ownedTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary\n if (tokenIndex != lastTokenIndex) {\n uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];\n\n _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n }\n\n // This also deletes the contents at the last position of the array\n _ownedTokens[from].length--;\n\n // Note that _ownedTokensIndex[tokenId] hasn't been cleared: it still points to the old slot (now occupied by\n // lastTokenId, or just over the end of the array if the token was the last one).\n }\n\n /**\n * @dev Private function to remove a token from this extension's token tracking data structures.\n * This has O(1) time complexity, but alters the order of the _allTokens array.\n * @param tokenId uint256 ID of the token to be removed from the tokens list\n */\n function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {\n // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _allTokens.length.sub(1);\n uint256 tokenIndex = _allTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so\n // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding\n // an 'if' statement (like in _removeTokenFromOwnerEnumeration)\n uint256 lastTokenId = _allTokens[lastTokenIndex];\n\n _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n\n // This also deletes the contents at the last position of the array\n _allTokens.length--;\n _allTokensIndex[tokenId] = 0;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Metadata is IERC721 {\n function name() external view returns (string memory);\n function symbol() external view returns (string memory);\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n\n\ncontract ERC721Metadata is ERC165, ERC721, IERC721Metadata {\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Optional mapping for token URIs\n mapping(uint256 => string) private _tokenURIs;\n\n /*\n * bytes4(keccak256('name()')) == 0x06fdde03\n * bytes4(keccak256('symbol()')) == 0x95d89b41\n * bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd\n *\n * => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f\n */\n bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;\n\n /**\n * @dev Constructor function\n */\n constructor (string memory name, string memory symbol) public {\n _name = name;\n _symbol = symbol;\n\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_METADATA);\n }\n\n /**\n * @dev Gets the token name.\n * @return string representing the token name\n */\n function name() external view returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Gets the token symbol.\n * @return string representing the token symbol\n */\n function symbol() external view returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns an URI for a given token ID.\n * Throws if the token ID does not exist. May return an empty string.\n * @param tokenId uint256 ID of the token to query\n */\n function tokenURI(uint256 tokenId) external view returns (string memory) {\n require(_exists(tokenId), \"ERC721Metadata: URI query for nonexistent token\");\n return _tokenURIs[tokenId];\n }\n\n /**\n * @dev Internal function to set the token URI for a given token.\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to set its URI\n * @param uri string URI to assign\n */\n function _setTokenURI(uint256 tokenId, string memory uri) internal {\n require(_exists(tokenId), \"ERC721Metadata: URI set of nonexistent token\");\n _tokenURIs[tokenId] = uri;\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned by the msg.sender\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n // Clear metadata (if any)\n if (bytes(_tokenURIs[tokenId]).length != 0) {\n delete _tokenURIs[tokenId];\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Full.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title Full ERC721 Token\n * This implementation includes all the required and some optional functionality of the ERC721 standard\n * Moreover, it includes approve all functionality using operator terminology\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Full is ERC721, ERC721Enumerable, ERC721Metadata {\n constructor (string memory name, string memory symbol) public ERC721Metadata(name, symbol) {\n // solhint-disable-previous-line no-empty-blocks\n }\n}\n", - "sourcePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "ast": { - "absolutePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "exportedSymbols": { - "Address": [ - 289 - ], - "Counters": [ - 336 - ], - "ERC165": [ - 386 - ], - "ERC721": [ - 944 - ], - "ERC721Enumerable": [ - 1302 - ], - "ERC721Full": [ - 1468 - ], - "ERC721Metadata": [ - 1448 - ], - "IERC165": [ - 23 - ], - "IERC721": [ - 124 - ], - "IERC721Enumerable": [ - 969 - ], - "IERC721Metadata": [ - 1323 - ], - "IERC721Receiver": [ - 139 - ], - "SafeMath": [ - 271 - ] - }, - "id": 1469, - "nodeType": "SourceUnit", - "nodes": [ - { - "id": 15, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "61:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "interface", - "documentation": "@dev Interface of the ERC165 standard, as defined in the\n[EIP](https://eips.ethereum.org/EIPS/eip-165).\n * Implementers can declare support of contract interfaces, which can then be\nqueried by others (`ERC165Checker`).\n * For an implementation, see `ERC165`.", - "fullyImplemented": false, - "id": 23, - "linearizedBaseContracts": [ - 23 - ], - "name": "IERC165", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@dev Returns true if this contract implements the interface defined by\n`interfaceId`. 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This function uses a `revert`\nopcode (which leaves remaining gas untouched) while Solidity uses an\ninvalid opcode to revert (consuming all remaining gas).\n * Requirements:\n- The divisor cannot be zero.", - "id": 270, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "mod", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 254, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 251, - "name": "a", - "nodeType": "VariableDeclaration", - "scope": 270, - "src": "7502:9:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 250, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "7502:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 253, - "name": "b", - "nodeType": "VariableDeclaration", - 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This can be used e.g. to track the number\nof elements in a mapping, issuing ERC721 ids, or counting request ids.\n * Include with `using Counters for Counters.Counter;`\nSince it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath\noverflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never\ndirectly accessed.", - "fullyImplemented": true, - "id": 336, - "linearizedBaseContracts": [ - 336 - ], - "name": "Counters", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 293, - "libraryName": { - "contractScope": null, - "id": 291, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "9332:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "9326:27:1", - "typeName": { - "id": 292, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "9345:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - }, - { - "canonicalName": "Counters.Counter", - "id": 296, - "members": [ - { - "constant": false, - "id": 295, - "name": "_value", - "nodeType": "VariableDeclaration", - "scope": 296, - 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"src": "10817:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 352, - "nodeType": "ExpressionStatement", - "src": "10817:40:1" - } - ] - }, - "documentation": null, - "id": 354, - "implemented": true, - "kind": "constructor", - "modifiers": [], - "name": "", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 347, - "nodeType": "ParameterList", - "parameters": [], - "src": "10659:2:1" - }, - "returnParameters": { - "id": 348, - "nodeType": "ParameterList", - "parameters": [], - "src": "10671:0:1" - }, - "scope": 386, - "src": "10647:217:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 365, - "nodeType": "Block", - "src": "11090:57:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 361, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11107:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 363, - "indexExpression": { - "argumentTypes": null, - "id": 362, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 356, - "src": "11128:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "11107:33:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "functionReturnParameters": 360, - "id": 364, - "nodeType": "Return", - "src": "11100:40:1" - } - ] - }, - "documentation": "@dev See `IERC165.supportsInterface`.\n * Time complexity O(1), guaranteed to always use less than 30 000 gas.", - "id": 366, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "supportsInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 357, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 356, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 366, - "src": "11041:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 355, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11041:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11040:20:1" - }, - "returnParameters": { - "id": 360, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 359, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 366, - "src": "11084:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 358, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "11084:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11083:6:1" - }, - "scope": 386, - "src": "11014:133:1", - "stateMutability": "view", - "superFunction": 22, - "visibility": "external" - }, - { - "body": { - "id": 384, - "nodeType": "Block", - "src": "11598:133:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "id": 374, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 372, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11616:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "hexValue": "30786666666666666666", - "id": 373, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11631:10:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_4294967295_by_1", - "typeString": "int_const 4294967295" - }, - "value": "0xffffffff" - }, - "src": "11616:25:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - { - "argumentTypes": null, - "hexValue": "4552433136353a20696e76616c696420696e74657266616365206964", - "id": 375, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "string", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11643:30:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_stringliteral_282912c0dfceceb28d77d0333f496b83948f9ba5b3154358a8b140b849289dee", - "typeString": "literal_string \"ERC165: invalid interface id\"" - }, - "value": "ERC165: invalid interface id" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - { - "typeIdentifier": "t_stringliteral_282912c0dfceceb28d77d0333f496b83948f9ba5b3154358a8b140b849289dee", - "typeString": "literal_string \"ERC165: invalid interface id\"" - } - ], - "id": 371, - "name": "require", - "nodeType": "Identifier", - "overloadedDeclarations": [ - 1543, - 1544 - ], - "referencedDeclaration": 1544, - "src": "11608:7:1", - "typeDescriptions": { - "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", - "typeString": "function (bool,string memory) pure" - } - }, - "id": 376, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "11684:33:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "74727565", - "id": 381, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "bool", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11720:4:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "value": "true" - }, - "src": "11684:40:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "id": 383, - "nodeType": "ExpressionStatement", - "src": "11684:40:1" - } - ] - }, - "documentation": "@dev Registers the contract as an implementer of the interface defined by\n`interfaceId`. Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - }, - "returnParameters": { - "id": 370, - "nodeType": "ParameterList", - "parameters": [], - "src": "11598:0:1" - }, - "scope": 386, - "src": "11541:190:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "10321:1412:1" - }, - { - "id": 387, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "11793:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 388, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "11968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 389, - "nodeType": "InheritanceSpecifier", - "src": "11968:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 390, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "11976:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 391, - "nodeType": "InheritanceSpecifier", - "src": "11976:7:1" - } - ], - "contractDependencies": [ - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 944, - "linearizedBaseContracts": [ - 944, - 124, - 386, - 23 - ], - "name": "ERC721", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 394, - "libraryName": { - "contractScope": null, - "id": 392, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "11996:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "11990:27:1", - "typeName": { - "id": 393, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "12009:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - }, - { - "id": 397, - "libraryName": { - "contractScope": null, - "id": 395, - "name": "Address", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 289, - "src": "12028:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_Address_$289", - "typeString": "library Address" - } - }, - "nodeType": "UsingForDirective", - "src": "12022:26:1", - "typeName": { - "id": 396, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12040:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - } - }, - { - "id": 400, - "libraryName": { - "contractScope": null, - "id": 398, - "name": "Counters", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 336, - "src": "12059:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_Counters_$336", - "typeString": "library Counters" - } - }, - "nodeType": "UsingForDirective", - "src": "12053:36:1", - "typeName": { - "contractScope": null, - "id": 399, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12072:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - { - "constant": true, - "id": 403, - "name": "_ERC721_RECEIVED", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12267:53:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 401, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "12267:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783135306237613032", - "id": 402, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "12310:10:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_353073666_by_1", - "typeString": "int_const 353073666" - }, - "value": "0x150b7a02" - }, - "visibility": "private" - }, - { - "constant": false, - "id": 407, - "name": "_tokenOwner", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12365:48:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - }, - "typeName": { - "id": 406, - "keyType": { - "id": 404, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "12374:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Mapping", - "src": "12365:28:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - }, - "valueType": { - "id": 405, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12385:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 411, - "name": "_tokenApprovals", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12469:52:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - }, - "typeName": { - "id": 410, - "keyType": { - "id": 408, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "12478:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Mapping", - "src": "12469:28:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - }, - "valueType": { - "id": 409, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12489:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 415, - "name": "_ownedTokensCount", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12579:63:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_struct$_Counter_$296_storage_$", - "typeString": "mapping(address => struct Counters.Counter)" - }, - "typeName": { - "id": 414, - "keyType": { - "id": 412, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12588:7:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Mapping", - "src": "12579:37:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_struct$_Counter_$296_storage_$", - "typeString": "mapping(address => struct Counters.Counter)" - }, - "valueType": { - "contractScope": null, - "id": 413, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12599:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 421, - "name": "_operatorApprovals", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12697:73:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", - "typeString": "mapping(address => mapping(address => bool))" - }, - "typeName": { - "id": 420, - "keyType": { - "id": 416, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12706:7:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Mapping", - "src": "12697:46:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", - "typeString": "mapping(address => mapping(address => bool))" - }, - "valueType": { - "id": 419, - "keyType": { - "id": 417, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12726:7:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Mapping", - "src": "12717:25:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", - "typeString": "mapping(address => bool)" - }, - "valueType": { - "id": 418, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "12737:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": true, - "id": 424, - "name": "_INTERFACE_ID_ERC721", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "13644:57:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 422, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "13644:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783830616335386364", - "id": 423, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "13691:10:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_2158778573_by_1", - "typeString": "int_const 2158778573" - }, - "value": "0x80ac58cd" - }, - "visibility": "private" - }, - { - "body": { - "id": 431, - "nodeType": "Block", - "src": "13730:134:1", - "statements": [ - { - 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"typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 883, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "23414:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 886, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23426:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 885, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "23426:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 888, - "name": "_data", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23443:18:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 887, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "23443:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23399:63:1" - }, - "returnParameters": { - "id": 892, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 891, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23489:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 890, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "23489:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23488:6:1" - }, - "scope": 944, - "src": "23368:347:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 942, - "nodeType": "Block", - "src": "23926:122:1", - "statements": [ - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "id": 931, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 925, - "name": "_tokenApprovals", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 411, - "src": "23940:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - } - }, - "id": 927, - "indexExpression": { - "argumentTypes": null, - "id": 926, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 922, - "src": "23956:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "23940:24:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "30", - "id": 929, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "23976:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - } - ], - "id": 928, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "23968:7:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_address_$", - "typeString": "type(address)" - }, - "typeName": "address" - }, - "id": 930, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23968:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - "src": "23940:38:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 941, - "nodeType": "IfStatement", - "src": "23936:106:1", - "trueBody": { - "id": 940, - "nodeType": "Block", - "src": "23980:62:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 938, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 932, - "name": "_tokenApprovals", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 411, - "src": "23994:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - } - }, - "id": 934, - "indexExpression": { - "argumentTypes": null, - "id": 933, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 922, - "src": "24010:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "23994:24:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "30", - "id": 936, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "24029:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - } - ], - "id": 935, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "24021:7:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_address_$", - "typeString": "type(address)" - }, - "typeName": "address" - }, - "id": 937, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "24021:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - "src": "23994:37:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "id": 939, - "nodeType": "ExpressionStatement", - "src": "23994:37:1" - } - ] - } - } - ] - }, - "documentation": "@dev Private function to clear current approval of a given token ID.\n@param tokenId uint256 ID of the token to be transferred", - "id": 943, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_clearApproval", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 923, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 922, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 943, - "src": "23901:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 921, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "23901:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23900:17:1" - }, - "returnParameters": { - "id": 924, - "nodeType": "ParameterList", - "parameters": [], - "src": "23926:0:1" - }, - "scope": 944, - "src": "23877:171:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - } - ], - "scope": 1469, - "src": "11949:12101:1" - }, - { - "id": 945, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "24121:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 946, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "24314:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 947, - "nodeType": "InheritanceSpecifier", - "src": "24314:7:1" - } - ], - "contractDependencies": [ - 23, - 124 - ], - "contractKind": "contract", - "documentation": "@title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n@dev See https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": false, - "id": 969, - "linearizedBaseContracts": [ - 969, - 124, - 23 - ], - "name": "IERC721Enumerable", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": null, - "id": 952, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "totalSupply", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 948, - "nodeType": "ParameterList", - "parameters": [], - "src": "24348:2:1" - }, - "returnParameters": { - "id": 951, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 950, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 952, - "src": "24372:7:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 949, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24372:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24371:9:1" - }, - "scope": 969, - "src": "24328:53:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 961, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "tokenOfOwnerByIndex", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 957, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 954, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 961, - "src": "24415:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 953, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "24415:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 956, - "name": "index", - "nodeType": "VariableDeclaration", - "scope": 961, - "src": "24430:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 955, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24430:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24414:30:1" - }, - "returnParameters": { - "id": 960, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 959, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 961, - "src": "24466:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 958, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24466:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24465:17:1" - }, - "scope": 969, - "src": "24386:97:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 968, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "tokenByIndex", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 964, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 963, - "name": "index", - "nodeType": "VariableDeclaration", - "scope": 968, - "src": "24511:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 962, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24511:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24510:15:1" - }, - "returnParameters": { - "id": 967, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 966, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 968, - "src": "24547:7:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 965, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24547:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24546:9:1" - }, - "scope": 969, - "src": "24489:67:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "24284:274:1" - }, - { - "id": 970, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "24628:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 971, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "24823:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 972, - "nodeType": "InheritanceSpecifier", - "src": "24823:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 973, - "name": "ERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 944, - "src": "24831:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721_$944", - "typeString": "contract ERC721" - } - }, - "id": 974, - "nodeType": "InheritanceSpecifier", - "src": "24831:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 975, - "name": "IERC721Enumerable", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 969, - "src": "24839:17:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721Enumerable_$969", - "typeString": "contract IERC721Enumerable" - } - }, - "id": 976, - "nodeType": "InheritanceSpecifier", - "src": "24839:17:1" - } - ], - "contractDependencies": [ - 944, - 969, - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC-721 Non-Fungible Token with optional enumeration extension logic\n@dev See https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 1302, - "linearizedBaseContracts": [ - 1302, - 969, - 944, - 124, - 386, - 23 - ], - "name": "ERC721Enumerable", - "nodeType": "ContractDefinition", - "nodes": [ - { - "constant": false, - "id": 981, - "name": "_ownedTokens", - "nodeType": "VariableDeclaration", - "scope": 1302, - "src": "24916:50:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[])" - }, - "typeName": { - "id": 980, - "keyType": { - "id": 977, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "24924:7:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Mapping", - "src": "24916:29:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[])" - }, - "valueType": { - "baseType": { - "id": 978, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24935:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 979, - "length": null, - "nodeType": "ArrayTypeName", - "src": "24935:9:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 985, - "name": "_ownedTokensIndex", - "nodeType": "VariableDeclaration", - "scope": 1302, - "src": "25036:53:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - }, - "typeName": { - "id": 984, - "keyType": { - "id": 982, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "25044:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Mapping", - "src": "25036:27:1", - "typeDescriptions": { - 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"typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1062, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "27714:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "27687:43:1" - }, - "returnParameters": { - "id": 1065, - "nodeType": "ParameterList", - "parameters": [], - "src": "27740:0:1" - }, - "scope": 1302, - "src": "27665:239:1", - "stateMutability": "nonpayable", - "superFunction": 880, - "visibility": "internal" - }, - { - "body": { - "id": 1108, - "nodeType": "Block", - "src": "28214:143:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1095, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28236:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - 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"typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1097, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28224:24:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1098, - "nodeType": "ExpressionStatement", - "src": "28224:24:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1100, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28287:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1101, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28291:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1099, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "28259:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1102, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28259:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1103, - "nodeType": "ExpressionStatement", - "src": "28259:40:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1105, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28342:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1104, - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1195, - "src": "28310:31:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1106, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28310:40:1", - "typeDescriptions": { - 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"src": "28688:308:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1119, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28710:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1120, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28717:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1116, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28698:5:1", - 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"nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28769:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1125, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28776:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1123, - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "28736:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1126, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28736:48:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1127, - "nodeType": "ExpressionStatement", - "src": "28736:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1132, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1128, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "28903:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1130, - "indexExpression": { - "argumentTypes": null, - "id": 1129, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28921:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "28903:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1131, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "28932:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "28903:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1133, - 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"name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1243, - "src": "31297:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1221, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31297:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1228, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1223, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31319:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1225, - "indexExpression": { - "argumentTypes": null, - "id": 1224, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31332:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1227, - "indexExpression": { - "argumentTypes": null, - "id": 1226, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31338:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:34:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "32485:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1259, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32463:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1260, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "32463:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1261, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1265, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32497:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1270, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1267, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "32518:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1269, - "indexExpression": { - "argumentTypes": null, - "id": 1268, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "32534:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32518:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32497:45:1" - }, - { - "assignments": [ - 1272 - ], - "declarations": [ - { - "constant": false, - "id": 1272, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32864:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1271, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32864:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1276, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1273, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32886:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1275, - "indexExpression": { - "argumentTypes": null, - "id": 1274, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1258, - "src": "32897:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32886:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32864:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1281, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1277, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32923:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1279, - "indexExpression": { - "argumentTypes": null, - "id": 1278, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "32934:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "32923:22:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1280, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "32948:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "32923:36:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1282, - "nodeType": "ExpressionStatement", - "src": "32923:36:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1287, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1283, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33027:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1285, - "indexExpression": { - "argumentTypes": null, - "id": 1284, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "33043:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33027:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1286, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "33058:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "33027:41:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1288, - "nodeType": "ExpressionStatement", - "src": "33027:41:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1292, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "33189:19:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1289, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "33189:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1291, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "33189:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1293, - "nodeType": "ExpressionStatement", - "src": "33189:19:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1298, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1294, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33218:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1296, - "indexExpression": { - "argumentTypes": null, - "id": 1295, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "33234:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33218:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1297, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "33245:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "33218:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1299, - "nodeType": "ExpressionStatement", - "src": "33218:28:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's token tracking data structures.\nThis has O(1) time complexity, but alters the order of the _allTokens array.\n@param tokenId uint256 ID of the token to be removed from the tokens list", - 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May return an empty string.\n@param tokenId uint256 ID of the token to query", - "id": 1396, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "tokenURI", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1380, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1379, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1396, - "src": "35304:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1378, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "35304:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "35303:17:1" - }, - "returnParameters": { - "id": 1383, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1382, - "name": "", - 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"isLValue": false, - "isPure": true, - "kind": "string", - "lValueRequested": false, - "nodeType": "Literal", - "src": "35830:46:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_stringliteral_94be4a260caaeac1b145f03ffa2e70bc612b64982d04f24073aaf3a5f9009978", - "typeString": "literal_string \"ERC721Metadata: URI set of nonexistent token\"" - }, - "value": "ERC721Metadata: URI set of nonexistent token" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - { - "typeIdentifier": "t_stringliteral_94be4a260caaeac1b145f03ffa2e70bc612b64982d04f24073aaf3a5f9009978", - "typeString": "literal_string \"ERC721Metadata: URI set of nonexistent token\"" - } - ], - "id": 1403, - "name": "require", - "nodeType": "Identifier", - "overloadedDeclarations": [ - 1543, - 1544 - ], - "referencedDeclaration": 1544, - "src": "35804:7:1", - "typeDescriptions": { - "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", - 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} - }, - "id": 1415, - "nodeType": "ExpressionStatement", - "src": "35887:25:1" - } - ] - }, - "documentation": "@dev Internal function to set the token URI for a given token.\nReverts if the token ID does not exist.\n@param tokenId uint256 ID of the token to set its URI\n@param uri string URI to assign", - "id": 1417, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_setTokenURI", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1401, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1398, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1417, - "src": "35749:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1397, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "35749:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - 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"argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1427, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1419, - "src": "36290:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1428, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1421, - "src": "36297:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1424, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1576, - "src": "36278:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Metadata_$1448", - "typeString": "contract super ERC721Metadata" - } - }, - "id": 1426, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_burn", - "nodeType": "MemberAccess", - "referencedDeclaration": 811, - "src": "36278:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1429, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "36278:27:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1430, - "nodeType": "ExpressionStatement", - "src": "36278:27:1" - }, - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "id": 1438, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1432, - "name": "_tokenURIs", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1338, - "src": "36361:10:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", - "typeString": "mapping(uint256 => string storage ref)" - } - }, - "id": 1434, - "indexExpression": { - "argumentTypes": null, - "id": 1433, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1421, - "src": "36372:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "36361:19:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage", - "typeString": "string storage ref" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_string_storage", - "typeString": "string storage ref" - } - ], - "id": 1431, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "36355:5:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_bytes_storage_ptr_$", - "typeString": "type(bytes storage pointer)" - }, - "typeName": "bytes" - }, - "id": 1435, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "36355:26:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes storage pointer" - } - }, - "id": 1436, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "36355:33:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "hexValue": "30", - "id": 1437, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "36392:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "36355:38:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 1445, - "nodeType": "IfStatement", - "src": "36351:95:1", - "trueBody": { - "id": 1444, - "nodeType": "Block", - "src": "36395:51:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 1442, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - 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This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. 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} - }, - "id": 329, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "10032:18:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 331, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "10032:21:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "10015:38:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 333, - "nodeType": "ExpressionStatement", - "src": "10015:38:1" - } - ] - }, - "documentation": null, - "id": 335, - "implemented": true, - "kind": "function", - 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"stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "9303:759:1" - }, - { - "id": 337, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "10123:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 338, - "name": "IERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 23, - "src": "10340:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC165_$23", - "typeString": "contract IERC165" - } - }, - "id": 339, - "nodeType": "InheritanceSpecifier", - "src": "10340:7:1" - } - ], - "contractDependencies": [ - 23 - ], - "contractKind": "contract", - "documentation": "@dev Implementation of the `IERC165` interface.\n * Contracts may inherit from this and call `_registerInterface` to declare\ntheir support of an interface.", - "fullyImplemented": true, - "id": 386, - "linearizedBaseContracts": [ - 386, - 23 - ], - "name": "ERC165", - "nodeType": "ContractDefinition", - "nodes": [ - { - "constant": true, - "id": 342, - "name": "_INTERFACE_ID_ERC165", - "nodeType": "VariableDeclaration", - "scope": 386, - "src": "10437:57:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 340, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "10437:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783031666663396137", - "id": 341, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "10484:10:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_33540519_by_1", - "typeString": "int_const 33540519" - }, - "value": "0x01ffc9a7" - }, - "visibility": "private" - }, - { - "constant": false, - "id": 346, - "name": "_supportedInterfaces", - "nodeType": "VariableDeclaration", - "scope": 386, - "src": "10588:52:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - }, - "typeName": { - "id": 345, - "keyType": { - "id": 343, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "10596:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "Mapping", - "src": "10588:23:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - }, - "valueType": { - "id": 344, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "10606:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "body": { - "id": 353, - "nodeType": "Block", - "src": "10671:193:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 350, - "name": "_INTERFACE_ID_ERC165", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 342, - "src": "10836:20:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - ], - "id": 349, - "name": "_registerInterface", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 385, - "src": "10817:18:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_bytes4_$returns$__$", - "typeString": "function (bytes4)" - } - }, - "id": 351, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "10817:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 352, - "nodeType": "ExpressionStatement", - "src": "10817:40:1" - } - ] - }, - "documentation": null, - "id": 354, - "implemented": true, - "kind": "constructor", - "modifiers": [], - "name": "", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 347, - "nodeType": "ParameterList", - "parameters": [], - "src": "10659:2:1" - }, - "returnParameters": { - "id": 348, - "nodeType": "ParameterList", - "parameters": [], - "src": "10671:0:1" - }, - "scope": 386, - "src": "10647:217:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 365, - "nodeType": "Block", - "src": "11090:57:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 361, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - 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"typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 358, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "11084:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11083:6:1" - }, - "scope": 386, - "src": "11014:133:1", - "stateMutability": "view", - "superFunction": 22, - "visibility": "external" - }, - { - "body": { - "id": 384, - "nodeType": "Block", - "src": "11598:133:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "id": 374, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 372, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11616:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "hexValue": "30786666666666666666", - "id": 373, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11631:10:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_4294967295_by_1", - "typeString": "int_const 4294967295" - }, - "value": "0xffffffff" - }, - "src": "11616:25:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - { - "argumentTypes": null, - "hexValue": "4552433136353a20696e76616c696420696e74657266616365206964", - "id": 375, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "string", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11643:30:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_stringliteral_282912c0dfceceb28d77d0333f496b83948f9ba5b3154358a8b140b849289dee", - "typeString": "literal_string \"ERC165: invalid interface id\"" - }, - "value": "ERC165: invalid interface id" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - { - "typeIdentifier": "t_stringliteral_282912c0dfceceb28d77d0333f496b83948f9ba5b3154358a8b140b849289dee", - "typeString": "literal_string \"ERC165: invalid interface id\"" - } - ], - "id": 371, - "name": "require", - "nodeType": "Identifier", - "overloadedDeclarations": [ - 1543, - 1544 - ], - "referencedDeclaration": 1544, - "src": "11608:7:1", - "typeDescriptions": { - "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", - "typeString": "function (bool,string memory) pure" - } - }, - "id": 376, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "11684:33:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "74727565", - "id": 381, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "bool", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11720:4:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "value": "true" - }, - "src": "11684:40:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "id": 383, - "nodeType": "ExpressionStatement", - "src": "11684:40:1" - } - ] - }, - "documentation": "@dev Registers the contract as an implementer of the interface defined by\n`interfaceId`. Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - }, - "returnParameters": { - "id": 370, - "nodeType": "ParameterList", - "parameters": [], - "src": "11598:0:1" - }, - "scope": 386, - "src": "11541:190:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "10321:1412:1" - }, - { - "id": 387, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "11793:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 388, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "11968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 389, - "nodeType": "InheritanceSpecifier", - "src": "11968:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 390, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "11976:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 391, - "nodeType": "InheritanceSpecifier", - "src": "11976:7:1" - } - ], - "contractDependencies": [ - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 944, - "linearizedBaseContracts": [ - 944, - 124, - 386, - 23 - ], - "name": "ERC721", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 394, - "libraryName": { - "contractScope": null, - "id": 392, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "11996:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "11990:27:1", - "typeName": { - "id": 393, - "name": "uint256", - 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"typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 600, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 619, - "src": "17522:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 599, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "17522:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "17495:43:1" - }, - "returnParameters": { - "id": 602, - "nodeType": "ParameterList", - "parameters": [], - "src": "17546:0:1" - }, - "scope": 944, - "src": "17474:285:1", - "stateMutability": "nonpayable", - "superFunction": 82, - "visibility": "public" - }, - { - "body": { - "id": 635, - "nodeType": "Block", - "src": "18468:56:1", - 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"typeString": "msg" - } - }, - "id": 908, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sender", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "23630:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - { - "argumentTypes": null, - "id": 909, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 882, - "src": "23642:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 910, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 886, - "src": "23648:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - { - "argumentTypes": null, - "id": 911, - "name": "_data", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 888, - "src": "23657:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes memory" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - }, - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes memory" - } - ], - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 904, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 884, - "src": "23609:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - } - ], - "id": 903, - "name": "IERC721Receiver", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 139, - "src": "23593:15:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_contract$_IERC721Receiver_$139_$", - "typeString": "type(contract IERC721Receiver)" - } - }, - "id": 905, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23593:19:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721Receiver_$139", - "typeString": "contract IERC721Receiver" - } - }, - "id": 906, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "onERC721Received", - "nodeType": "MemberAccess", - "referencedDeclaration": 138, - "src": "23593:36:1", - "typeDescriptions": { - "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bytes4_$", - "typeString": "function (address,address,uint256,bytes memory) external returns (bytes4)" - } - }, - "id": 912, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23593:70:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "23577:86:1" - }, - { - "expression": { - "argumentTypes": null, - "components": [ - { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "id": 916, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 914, - "name": "retval", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 902, - "src": "23681:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "BinaryOperation", - "operator": "==", - "rightExpression": { - "argumentTypes": null, - "id": 915, - "name": "_ERC721_RECEIVED", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 403, - "src": "23691:16:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "src": "23681:26:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - } - ], - "id": 917, - "isConstant": false, - "isInlineArray": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "TupleExpression", - "src": "23680:28:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "functionReturnParameters": 892, - "id": 918, - "nodeType": "Return", - "src": "23673:35:1" - } - ] - }, - "documentation": "@dev Internal function to invoke `onERC721Received` on a target address.\nThe call is not executed if the target address is not a contract.\n * This function is deprecated.\n@param from address representing the previous owner of the given token ID\n@param to target address that will receive the tokens\n@param tokenId uint256 ID of the token to be transferred\n@param _data bytes optional data to send along with the call\n@return bool whether the call correctly returned the expected magic value", - "id": 920, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_checkOnERC721Received", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 889, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 882, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23400:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 881, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "23400:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 884, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23414:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 883, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "23414:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 886, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23426:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 885, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "23426:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 888, - "name": "_data", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23443:18:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 887, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "23443:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23399:63:1" - }, - "returnParameters": { - "id": 892, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 891, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23489:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 890, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "23489:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23488:6:1" - }, - "scope": 944, - "src": "23368:347:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 942, - "nodeType": "Block", - "src": "23926:122:1", - "statements": [ - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "id": 931, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 925, - "name": "_tokenApprovals", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 411, - "src": "23940:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - } - }, - "id": 927, - "indexExpression": { - "argumentTypes": null, - "id": 926, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 922, - "src": "23956:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "23940:24:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "30", - "id": 929, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "23976:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - } - ], - "id": 928, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "23968:7:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_address_$", - "typeString": "type(address)" - }, - "typeName": "address" - }, - "id": 930, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23968:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - "src": "23940:38:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 941, - "nodeType": "IfStatement", - "src": "23936:106:1", - "trueBody": { - "id": 940, - "nodeType": "Block", - "src": "23980:62:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 938, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 932, - "name": "_tokenApprovals", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 411, - "src": "23994:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - } - }, - "id": 934, - "indexExpression": { - "argumentTypes": null, - "id": 933, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 922, - "src": "24010:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "23994:24:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "30", - "id": 936, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "24029:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - } - ], - "id": 935, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "24021:7:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_address_$", - "typeString": "type(address)" - }, - "typeName": "address" - }, - "id": 937, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "24021:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - "src": "23994:37:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "id": 939, - "nodeType": "ExpressionStatement", - "src": "23994:37:1" - } - ] - } - } - ] - }, - "documentation": "@dev Private function to clear current approval of a given token ID.\n@param tokenId uint256 ID of the token to be transferred", - "id": 943, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_clearApproval", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 923, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 922, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 943, - "src": "23901:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 921, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "23901:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23900:17:1" - }, - "returnParameters": { - "id": 924, - "nodeType": "ParameterList", - "parameters": [], - "src": "23926:0:1" - }, - "scope": 944, - "src": "23877:171:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - } - ], - "scope": 1469, - "src": "11949:12101:1" - }, - { - "id": 945, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "24121:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 946, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "24314:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 947, - "nodeType": "InheritanceSpecifier", - "src": "24314:7:1" - } - ], - "contractDependencies": [ - 23, - 124 - ], - "contractKind": "contract", - "documentation": "@title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n@dev See https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": false, - "id": 969, - "linearizedBaseContracts": [ - 969, - 124, - 23 - ], - "name": "IERC721Enumerable", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": null, - "id": 952, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "totalSupply", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 948, - "nodeType": "ParameterList", - "parameters": [], - "src": "24348:2:1" - }, - "returnParameters": { - "id": 951, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 950, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 952, - "src": "24372:7:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 949, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24372:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24371:9:1" - }, - "scope": 969, - "src": "24328:53:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 961, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "tokenOfOwnerByIndex", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 957, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 954, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 961, - "src": "24415:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 953, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "24415:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 956, - "name": "index", - "nodeType": "VariableDeclaration", - "scope": 961, - "src": "24430:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 955, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24430:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24414:30:1" - }, - "returnParameters": { - "id": 960, - 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} - ], - "src": "29262:19:1" - }, - "scope": 1302, - "src": "29201:124:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 1175, - "nodeType": "Block", - "src": "29693:109:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 1166, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1159, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "29703:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1161, - "indexExpression": { - "argumentTypes": null, - "id": 1160, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1156, - "src": "29721:7:1", - 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"src": "29745:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "29732:16:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1165, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "29732:23:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "29703:52:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1167, - "nodeType": "ExpressionStatement", - "src": "29703:52:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1172, - "name": "tokenId", - 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"nodeType": "ExpressionStatement", - "src": "29765:30:1" - } - ] - }, - "documentation": "@dev Private function to add a token to this extension's ownership-tracking data structures.\n@param to address representing the new owner of the given token ID\n@param tokenId uint256 ID of the token to be added to the tokens list of the given address", - "id": 1176, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_addTokenToOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1157, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1154, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1176, - "src": "29656:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1153, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "29656:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1156, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1176, - "src": "29668:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1155, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "29668:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "29655:29:1" - }, - "returnParameters": { - "id": 1158, - "nodeType": "ParameterList", - "parameters": [], - "src": "29693:0:1" - }, - "scope": 1302, - "src": "29619:183:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1194, - "nodeType": "Block", - "src": "30063:95:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 1186, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1181, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "30073:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1183, - "indexExpression": { - "argumentTypes": null, - "id": 1182, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1178, - "src": "30089:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "30073:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1184, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30100:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1185, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30100:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "30073:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1187, - "nodeType": "ExpressionStatement", - "src": "30073:44:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1191, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1178, - "src": "30143:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1188, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30127:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1190, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "push", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30127:15:1", - 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"name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1243, - "src": "31297:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1221, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31297:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1228, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1223, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31319:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1225, - "indexExpression": { - "argumentTypes": null, - "id": 1224, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31332:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1227, - "indexExpression": { - "argumentTypes": null, - "id": 1226, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31338:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:34:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "32485:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1259, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32463:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1260, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "32463:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1261, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1265, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32497:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1270, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1267, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "32518:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1269, - "indexExpression": { - "argumentTypes": null, - "id": 1268, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "32534:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - 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"visibility": "internal" - } - ], - "scope": 1469, - "src": "33817:2637:1" - }, - { - "id": 1449, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "36518:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1450, - "name": "ERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 944, - "src": "36838:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721_$944", - "typeString": "contract ERC721" - } - }, - "id": 1451, - "nodeType": "InheritanceSpecifier", - "src": "36838:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1452, - "name": "ERC721Enumerable", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 1302, - "src": "36846:16:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721Enumerable_$1302", - "typeString": "contract ERC721Enumerable" - } - }, - "id": 1453, - "nodeType": "InheritanceSpecifier", - "src": "36846:16:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1454, - "name": "ERC721Metadata", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 1448, - "src": "36864:14:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721Metadata_$1448", - "typeString": "contract ERC721Metadata" - } - }, - "id": 1455, - "nodeType": "InheritanceSpecifier", - "src": "36864:14:1" - } - ], - "contractDependencies": [ - 944, - 969, - 23, - 124, - 386, - 1302, - 1323, - 1448 - ], - "contractKind": "contract", - "documentation": "@title Full ERC721 Token\nThis implementation includes all the required and some optional functionality of the ERC721 standard\nMoreover, it includes approve all functionality using operator terminology\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 1468, - "linearizedBaseContracts": [ - 1468, - 1448, - 1323, - 1302, - 969, - 944, - 124, - 386, - 23 - ], - "name": "ERC721Full", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": { - "id": 1466, - "nodeType": "Block", - "src": "36976:64:1", - "statements": [] - }, - "documentation": null, - "id": 1467, - "implemented": true, - "kind": "constructor", - "modifiers": [ - { - "arguments": [ - { - "argumentTypes": null, - "id": 1462, - "name": "name", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1457, - "src": "36962:4:1", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string memory" - } - }, - { - "argumentTypes": null, - "id": 1463, - "name": "symbol", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1459, - "src": "36968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string memory" - } - } - ], - "id": 1464, - "modifierName": { - "argumentTypes": null, - "id": 1461, - "name": "ERC721Metadata", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1448, - "src": "36947:14:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_contract$_ERC721Metadata_$1448_$", - "typeString": "type(contract ERC721Metadata)" - } - }, - "nodeType": "ModifierInvocation", - "src": "36947:28:1" - } - ], - "name": "", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1460, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1457, - "name": "name", - "nodeType": "VariableDeclaration", - "scope": 1467, - "src": "36898:18:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1456, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "36898:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1459, - "name": "symbol", - "nodeType": "VariableDeclaration", - "scope": 1467, - "src": "36918:20:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1458, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "36918:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "36897:42:1" - }, - "returnParameters": { - "id": 1465, - "nodeType": "ParameterList", - "parameters": [], - "src": "36976:0:1" - }, - "scope": 1468, - "src": "36885:155:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "36815:227:1" - } - ], - "src": "61:36982:1" - }, - "compiler": { - "name": "solc", - "version": "0.5.0+commit.1d4f565a.Emscripten.clang" - }, - "networks": {}, - "schemaVersion": "3.0.2", - "updatedAt": "2019-09-05T15:01:08.838Z", - "devdoc": { - "details": "See https://eips.ethereum.org/EIPS/eip-721", - "methods": { - "balanceOf(address)": { - "details": "Returns the number of NFTs in `owner`'s account." - }, - "ownerOf(uint256)": { - "details": "Returns the owner of the NFT specified by `tokenId`." - }, - "safeTransferFrom(address,address,uint256)": { - "details": "Transfers a specific NFT (`tokenId`) from one account (`from`) to another (`to`). * * Requirements: - `from`, `to` cannot be zero. - `tokenId` must be owned by `from`. - If the caller is not `from`, it must be have been allowed to move this NFT by either `approve` or `setApproveForAll`." - }, - "supportsInterface(bytes4)": { - "details": "Returns true if this contract implements the interface defined by `interfaceId`. See the corresponding [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified) to learn more about how these ids are created. * This function call must use less than 30 000 gas." - }, - "transferFrom(address,address,uint256)": { - "details": "Transfers a specific NFT (`tokenId`) from one account (`from`) to another (`to`). * Requirements: - If the caller is not `from`, it must be approved to move this NFT by either `approve` or `setApproveForAll`." - } - }, - "title": "ERC-721 Non-Fungible Token Standard, optional enumeration extension" - }, - "userdoc": { - "methods": {} - } -} \ No newline at end of file diff --git a/src/abis/IERC721Metadata.json b/src/abis/IERC721Metadata.json deleted file mode 100644 index bcad8e7..0000000 --- a/src/abis/IERC721Metadata.json +++ /dev/null @@ -1,37784 +0,0 @@ -{ - "contractName": "IERC721Metadata", - "abi": [ - { - "constant": true, - "inputs": [ - { - "name": "interfaceId", - "type": "bytes4" - } - ], - "name": "supportsInterface", - "outputs": [ - { - "name": "", - "type": "bool" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "getApproved", - "outputs": [ - { - "name": "operator", - "type": "address" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "approve", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "from", - "type": "address" - }, - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "transferFrom", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "from", - "type": "address" - }, - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "safeTransferFrom", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "ownerOf", - "outputs": [ - { - "name": "owner", - "type": "address" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "owner", - "type": "address" - } - ], - "name": "balanceOf", - "outputs": [ - { - "name": "balance", - "type": "uint256" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "operator", - "type": "address" - }, - { - "name": "_approved", - "type": "bool" - } - ], - "name": "setApprovalForAll", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": false, - "inputs": [ - { - "name": "from", - "type": "address" - }, - { - "name": "to", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - }, - { - "name": "data", - "type": "bytes" - } - ], - "name": "safeTransferFrom", - "outputs": [], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "owner", - "type": "address" - }, - { - "name": "operator", - "type": "address" - } - ], - "name": "isApprovedForAll", - "outputs": [ - { - "name": "", - "type": "bool" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "anonymous": false, - "inputs": [ - { - "indexed": true, - "name": "from", - "type": "address" - }, - { - "indexed": true, - "name": "to", - "type": "address" - }, - { - "indexed": true, - "name": "tokenId", - "type": "uint256" - } - ], - "name": "Transfer", - "type": "event" - }, - { - "anonymous": false, - "inputs": [ - { - "indexed": true, - "name": "owner", - "type": "address" - }, - { - "indexed": true, - "name": "approved", - "type": "address" - }, - { - "indexed": true, - "name": "tokenId", - "type": "uint256" - } - ], - "name": "Approval", - "type": "event" - }, - { - "anonymous": false, - "inputs": [ - { - "indexed": true, - "name": "owner", - "type": "address" - }, - { - "indexed": true, - "name": "operator", - "type": "address" - }, - { - "indexed": false, - "name": "approved", - "type": "bool" - } - ], - "name": "ApprovalForAll", - "type": "event" - }, - { - "constant": true, - "inputs": [], - "name": "name", - "outputs": [ - { - "name": "", - "type": "string" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [], - "name": "symbol", - "outputs": [ - { - "name": "", - "type": "string" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - }, - { - "constant": true, - "inputs": [ - { - "name": "tokenId", - "type": "uint256" - } - ], - "name": "tokenURI", - "outputs": [ - { - "name": "", - "type": "string" - } - ], - "payable": false, - "stateMutability": "view", - "type": "function" - } - ], - "bytecode": "0x", - "deployedBytecode": "0x", - "sourceMap": "", - "deployedSourceMap": "", - "source": "\n// File: @openzeppelin/contracts/introspection/IERC165.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * [EIP](https://eips.ethereum.org/EIPS/eip-165).\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others (`ERC165Checker`).\n *\n * For an implementation, see `ERC165`.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ncontract IERC721 is IERC165 {\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of NFTs in `owner`'s account.\n */\n function balanceOf(address owner) public view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the NFT specified by `tokenId`.\n */\n function ownerOf(uint256 tokenId) public view returns (address owner);\n\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * \n *\n * Requirements:\n * - `from`, `to` cannot be zero.\n * - `tokenId` must be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this\n * NFT by either `approve` or `setApproveForAll`.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public;\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * Requirements:\n * - If the caller is not `from`, it must be approved to move this NFT by\n * either `approve` or `setApproveForAll`.\n */\n function transferFrom(address from, address to, uint256 tokenId) public;\n function approve(address to, uint256 tokenId) public;\n function getApproved(uint256 tokenId) public view returns (address operator);\n\n function setApprovalForAll(address operator, bool _approved) public;\n function isApprovedForAll(address owner, address operator) public view returns (bool);\n\n\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public;\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ncontract IERC721Receiver {\n /**\n * @notice Handle the receipt of an NFT\n * @dev The ERC721 smart contract calls this function on the recipient\n * after a `safeTransfer`. This function MUST return the function selector,\n * otherwise the caller will revert the transaction. The selector to be\n * returned can be obtained as `this.onERC721Received.selector`. This\n * function MAY throw to revert and reject the transfer.\n * Note: the ERC721 contract address is always the message sender.\n * @param operator The address which called `safeTransferFrom` function\n * @param from The address which previously owned the token\n * @param tokenId The NFT identifier which is being transferred\n * @param data Additional data with no specified format\n * @return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n */\n function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data)\n public returns (bytes4);\n}\n\n// File: @openzeppelin/contracts/math/SafeMath.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\n * checks.\n *\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\n * in bugs, because programmers usually assume that an overflow raises an\n * error, which is the standard behavior in high level programming languages.\n * `SafeMath` restores this intuition by reverting the transaction when an\n * operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeMath {\n /**\n * @dev Returns the addition of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `+` operator.\n *\n * Requirements:\n * - Addition cannot overflow.\n */\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting on\n * overflow (when the result is negative).\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n * - Subtraction cannot overflow.\n */\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b <= a, \"SafeMath: subtraction overflow\");\n uint256 c = a - b;\n\n return c;\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `*` operator.\n *\n * Requirements:\n * - Multiplication cannot overflow.\n */\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers. Reverts on\n * division by zero. The result is rounded towards zero.\n *\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n * uses an invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n // Solidity only automatically asserts when dividing by 0\n require(b > 0, \"SafeMath: division by zero\");\n uint256 c = a / b;\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n return c;\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * Reverts when dividing by zero.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b != 0, \"SafeMath: modulo by zero\");\n return a % b;\n }\n}\n\n// File: @openzeppelin/contracts/utils/Address.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Collection of functions related to the address type,\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * This test is non-exhaustive, and there may be false-negatives: during the\n * execution of a contract's constructor, its address will be reported as\n * not containing a contract.\n *\n * > It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies in extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n}\n\n// File: @openzeppelin/contracts/drafts/Counters.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title Counters\n * @author Matt Condon (@shrugs)\n * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number\n * of elements in a mapping, issuing ERC721 ids, or counting request ids.\n *\n * Include with `using Counters for Counters.Counter;`\n * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath\n * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never\n * directly accessed.\n */\nlibrary Counters {\n using SafeMath for uint256;\n\n struct Counter {\n // This variable should never be directly accessed by users of the library: interactions must be restricted to\n // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add\n // this feature: see https://github.com/ethereum/solidity/issues/4637\n uint256 _value; // default: 0\n }\n\n function current(Counter storage counter) internal view returns (uint256) {\n return counter._value;\n }\n\n function increment(Counter storage counter) internal {\n counter._value += 1;\n }\n\n function decrement(Counter storage counter) internal {\n counter._value = counter._value.sub(1);\n }\n}\n\n// File: @openzeppelin/contracts/introspection/ERC165.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Implementation of the `IERC165` interface.\n *\n * Contracts may inherit from this and call `_registerInterface` to declare\n * their support of an interface.\n */\ncontract ERC165 is IERC165 {\n /*\n * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7\n */\n bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;\n\n /**\n * @dev Mapping of interface ids to whether or not it's supported.\n */\n mapping(bytes4 => bool) private _supportedInterfaces;\n\n constructor () internal {\n // Derived contracts need only register support for their own interfaces,\n // we register support for ERC165 itself here\n _registerInterface(_INTERFACE_ID_ERC165);\n }\n\n /**\n * @dev See `IERC165.supportsInterface`.\n *\n * Time complexity O(1), guaranteed to always use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool) {\n return _supportedInterfaces[interfaceId];\n }\n\n /**\n * @dev Registers the contract as an implementer of the interface defined by\n * `interfaceId`. Support of the actual ERC165 interface is automatic and\n * registering its interface id is not required.\n *\n * See `IERC165.supportsInterface`.\n *\n * Requirements:\n *\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).\n */\n function _registerInterface(bytes4 interfaceId) internal {\n require(interfaceId != 0xffffffff, \"ERC165: invalid interface id\");\n _supportedInterfaces[interfaceId] = true;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n\n\n\n/**\n * @title ERC721 Non-Fungible Token Standard basic implementation\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721 is ERC165, IERC721 {\n using SafeMath for uint256;\n using Address for address;\n using Counters for Counters.Counter;\n\n // Equals to `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`\n bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;\n\n // Mapping from token ID to owner\n mapping (uint256 => address) private _tokenOwner;\n\n // Mapping from token ID to approved address\n mapping (uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to number of owned token\n mapping (address => Counters.Counter) private _ownedTokensCount;\n\n // Mapping from owner to operator approvals\n mapping (address => mapping (address => bool)) private _operatorApprovals;\n\n /*\n * bytes4(keccak256('balanceOf(address)')) == 0x70a08231\n * bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e\n * bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3\n * bytes4(keccak256('getApproved(uint256)')) == 0x081812fc\n * bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465\n * bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c\n * bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd\n * bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e\n * bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde\n *\n * => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^\n * 0xa22cb465 ^ 0xe985e9c ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd\n */\n bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;\n\n constructor () public {\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721);\n }\n\n /**\n * @dev Gets the balance of the specified address.\n * @param owner address to query the balance of\n * @return uint256 representing the amount owned by the passed address\n */\n function balanceOf(address owner) public view returns (uint256) {\n require(owner != address(0), \"ERC721: balance query for the zero address\");\n\n return _ownedTokensCount[owner].current();\n }\n\n /**\n * @dev Gets the owner of the specified token ID.\n * @param tokenId uint256 ID of the token to query the owner of\n * @return address currently marked as the owner of the given token ID\n */\n function ownerOf(uint256 tokenId) public view returns (address) {\n address owner = _tokenOwner[tokenId];\n require(owner != address(0), \"ERC721: owner query for nonexistent token\");\n\n return owner;\n }\n\n /**\n * @dev Approves another address to transfer the given token ID\n * The zero address indicates there is no approved address.\n * There can only be one approved address per token at a given time.\n * Can only be called by the token owner or an approved operator.\n * @param to address to be approved for the given token ID\n * @param tokenId uint256 ID of the token to be approved\n */\n function approve(address to, uint256 tokenId) public {\n address owner = ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(msg.sender == owner || isApprovedForAll(owner, msg.sender),\n \"ERC721: approve caller is not owner nor approved for all\"\n );\n\n _tokenApprovals[tokenId] = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Gets the approved address for a token ID, or zero if no address set\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to query the approval of\n * @return address currently approved for the given token ID\n */\n function getApproved(uint256 tokenId) public view returns (address) {\n require(_exists(tokenId), \"ERC721: approved query for nonexistent token\");\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev Sets or unsets the approval of a given operator\n * An operator is allowed to transfer all tokens of the sender on their behalf.\n * @param to operator address to set the approval\n * @param approved representing the status of the approval to be set\n */\n function setApprovalForAll(address to, bool approved) public {\n require(to != msg.sender, \"ERC721: approve to caller\");\n\n _operatorApprovals[msg.sender][to] = approved;\n emit ApprovalForAll(msg.sender, to, approved);\n }\n\n /**\n * @dev Tells whether an operator is approved by a given owner.\n * @param owner owner address which you want to query the approval of\n * @param operator operator address which you want to query the approval of\n * @return bool whether the given operator is approved by the given owner\n */\n function isApprovedForAll(address owner, address operator) public view returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev Transfers the ownership of a given token ID to another address.\n * Usage of this method is discouraged, use `safeTransferFrom` whenever possible.\n * Requires the msg.sender to be the owner, approved, or operator.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function transferFrom(address from, address to, uint256 tokenId) public {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(msg.sender, tokenId), \"ERC721: transfer caller is not owner nor approved\");\n\n _transferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes data to send along with a safe transfer check\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public {\n transferFrom(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, _data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns whether the specified token exists.\n * @param tokenId uint256 ID of the token to query the existence of\n * @return bool whether the token exists\n */\n function _exists(uint256 tokenId) internal view returns (bool) {\n address owner = _tokenOwner[tokenId];\n return owner != address(0);\n }\n\n /**\n * @dev Returns whether the given spender can transfer a given token ID.\n * @param spender address of the spender to query\n * @param tokenId uint256 ID of the token to be transferred\n * @return bool whether the msg.sender is approved for the given token ID,\n * is an operator of the owner, or is the owner of the token\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view returns (bool) {\n require(_exists(tokenId), \"ERC721: operator query for nonexistent token\");\n address owner = ownerOf(tokenId);\n return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to The address that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _tokenOwner[tokenId] = to;\n _ownedTokensCount[to].increment();\n\n emit Transfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n require(ownerOf(tokenId) == owner, \"ERC721: burn of token that is not own\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[owner].decrement();\n _tokenOwner[tokenId] = address(0);\n\n emit Transfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(uint256 tokenId) internal {\n _burn(ownerOf(tokenId), tokenId);\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n require(ownerOf(tokenId) == from, \"ERC721: transfer of token that is not own\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[from].decrement();\n _ownedTokensCount[to].increment();\n\n _tokenOwner[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n }\n\n /**\n * @dev Internal function to invoke `onERC721Received` on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * This function is deprecated.\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data)\n internal returns (bool)\n {\n if (!to.isContract()) {\n return true;\n }\n\n bytes4 retval = IERC721Receiver(to).onERC721Received(msg.sender, from, tokenId, _data);\n return (retval == _ERC721_RECEIVED);\n }\n\n /**\n * @dev Private function to clear current approval of a given token ID.\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _clearApproval(uint256 tokenId) private {\n if (_tokenApprovals[tokenId] != address(0)) {\n _tokenApprovals[tokenId] = address(0);\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Enumerable is IERC721 {\n function totalSupply() public view returns (uint256);\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256 tokenId);\n\n function tokenByIndex(uint256 index) public view returns (uint256);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title ERC-721 Non-Fungible Token with optional enumeration extension logic\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Enumerable is ERC165, ERC721, IERC721Enumerable {\n // Mapping from owner to list of owned token IDs\n mapping(address => uint256[]) private _ownedTokens;\n\n // Mapping from token ID to index of the owner tokens list\n mapping(uint256 => uint256) private _ownedTokensIndex;\n\n // Array with all token ids, used for enumeration\n uint256[] private _allTokens;\n\n // Mapping from token id to position in the allTokens array\n mapping(uint256 => uint256) private _allTokensIndex;\n\n /*\n * bytes4(keccak256('totalSupply()')) == 0x18160ddd\n * bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59\n * bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7\n *\n * => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63\n */\n bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;\n\n /**\n * @dev Constructor function.\n */\n constructor () public {\n // register the supported interface to conform to ERC721Enumerable via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);\n }\n\n /**\n * @dev Gets the token ID at a given index of the tokens list of the requested owner.\n * @param owner address owning the tokens list to be accessed\n * @param index uint256 representing the index to be accessed of the requested tokens list\n * @return uint256 token ID at the given index of the tokens list owned by the requested address\n */\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) {\n require(index < balanceOf(owner), \"ERC721Enumerable: owner index out of bounds\");\n return _ownedTokens[owner][index];\n }\n\n /**\n * @dev Gets the total amount of tokens stored by the contract.\n * @return uint256 representing the total amount of tokens\n */\n function totalSupply() public view returns (uint256) {\n return _allTokens.length;\n }\n\n /**\n * @dev Gets the token ID at a given index of all the tokens in this contract\n * Reverts if the index is greater or equal to the total number of tokens.\n * @param index uint256 representing the index to be accessed of the tokens list\n * @return uint256 token ID at the given index of the tokens list\n */\n function tokenByIndex(uint256 index) public view returns (uint256) {\n require(index < totalSupply(), \"ERC721Enumerable: global index out of bounds\");\n return _allTokens[index];\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n super._transferFrom(from, to, tokenId);\n\n _removeTokenFromOwnerEnumeration(from, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to address the beneficiary that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n super._mint(to, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n\n _addTokenToAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n _removeTokenFromOwnerEnumeration(owner, tokenId);\n // Since tokenId will be deleted, we can clear its slot in _ownedTokensIndex to trigger a gas refund\n _ownedTokensIndex[tokenId] = 0;\n\n _removeTokenFromAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Gets the list of token IDs of the requested owner.\n * @param owner address owning the tokens\n * @return uint256[] List of token IDs owned by the requested address\n */\n function _tokensOfOwner(address owner) internal view returns (uint256[] storage) {\n return _ownedTokens[owner];\n }\n\n /**\n * @dev Private function to add a token to this extension's ownership-tracking data structures.\n * @param to address representing the new owner of the given token ID\n * @param tokenId uint256 ID of the token to be added to the tokens list of the given address\n */\n function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {\n _ownedTokensIndex[tokenId] = _ownedTokens[to].length;\n _ownedTokens[to].push(tokenId);\n }\n\n /**\n * @dev Private function to add a token to this extension's token tracking data structures.\n * @param tokenId uint256 ID of the token to be added to the tokens list\n */\n function _addTokenToAllTokensEnumeration(uint256 tokenId) private {\n _allTokensIndex[tokenId] = _allTokens.length;\n _allTokens.push(tokenId);\n }\n\n /**\n * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\n * while the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\n * gas optimizations e.g. when performing a transfer operation (avoiding double writes).\n * This has O(1) time complexity, but alters the order of the _ownedTokens array.\n * @param from address representing the previous owner of the given token ID\n * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address\n */\n function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {\n // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _ownedTokens[from].length.sub(1);\n uint256 tokenIndex = _ownedTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary\n if (tokenIndex != lastTokenIndex) {\n uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];\n\n _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n }\n\n // This also deletes the contents at the last position of the array\n _ownedTokens[from].length--;\n\n // Note that _ownedTokensIndex[tokenId] hasn't been cleared: it still points to the old slot (now occupied by\n // lastTokenId, or just over the end of the array if the token was the last one).\n }\n\n /**\n * @dev Private function to remove a token from this extension's token tracking data structures.\n * This has O(1) time complexity, but alters the order of the _allTokens array.\n * @param tokenId uint256 ID of the token to be removed from the tokens list\n */\n function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {\n // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _allTokens.length.sub(1);\n uint256 tokenIndex = _allTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so\n // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding\n // an 'if' statement (like in _removeTokenFromOwnerEnumeration)\n uint256 lastTokenId = _allTokens[lastTokenIndex];\n\n _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n\n // This also deletes the contents at the last position of the array\n _allTokens.length--;\n _allTokensIndex[tokenId] = 0;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Metadata is IERC721 {\n function name() external view returns (string memory);\n function symbol() external view returns (string memory);\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n\n\ncontract ERC721Metadata is ERC165, ERC721, IERC721Metadata {\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Optional mapping for token URIs\n mapping(uint256 => string) private _tokenURIs;\n\n /*\n * bytes4(keccak256('name()')) == 0x06fdde03\n * bytes4(keccak256('symbol()')) == 0x95d89b41\n * bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd\n *\n * => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f\n */\n bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;\n\n /**\n * @dev Constructor function\n */\n constructor (string memory name, string memory symbol) public {\n _name = name;\n _symbol = symbol;\n\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_METADATA);\n }\n\n /**\n * @dev Gets the token name.\n * @return string representing the token name\n */\n function name() external view returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Gets the token symbol.\n * @return string representing the token symbol\n */\n function symbol() external view returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns an URI for a given token ID.\n * Throws if the token ID does not exist. May return an empty string.\n * @param tokenId uint256 ID of the token to query\n */\n function tokenURI(uint256 tokenId) external view returns (string memory) {\n require(_exists(tokenId), \"ERC721Metadata: URI query for nonexistent token\");\n return _tokenURIs[tokenId];\n }\n\n /**\n * @dev Internal function to set the token URI for a given token.\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to set its URI\n * @param uri string URI to assign\n */\n function _setTokenURI(uint256 tokenId, string memory uri) internal {\n require(_exists(tokenId), \"ERC721Metadata: URI set of nonexistent token\");\n _tokenURIs[tokenId] = uri;\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned by the msg.sender\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n // Clear metadata (if any)\n if (bytes(_tokenURIs[tokenId]).length != 0) {\n delete _tokenURIs[tokenId];\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Full.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title Full ERC721 Token\n * This implementation includes all the required and some optional functionality of the ERC721 standard\n * Moreover, it includes approve all functionality using operator terminology\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Full is ERC721, ERC721Enumerable, ERC721Metadata {\n constructor (string memory name, string memory symbol) public ERC721Metadata(name, symbol) {\n // solhint-disable-previous-line no-empty-blocks\n }\n}\n", - "sourcePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "ast": { - "absolutePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "exportedSymbols": { - "Address": [ - 289 - ], - "Counters": [ - 336 - ], - "ERC165": [ - 386 - ], - "ERC721": [ - 944 - ], - "ERC721Enumerable": [ - 1302 - ], - "ERC721Full": [ - 1468 - ], - "ERC721Metadata": [ - 1448 - ], - "IERC165": [ - 23 - ], - "IERC721": [ - 124 - ], - "IERC721Enumerable": [ - 969 - ], - "IERC721Metadata": [ - 1323 - ], - "IERC721Receiver": [ - 139 - ], - "SafeMath": [ - 271 - ] - }, - "id": 1469, - "nodeType": "SourceUnit", - "nodes": [ - { - "id": 15, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "61:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "interface", - "documentation": "@dev Interface of the ERC165 standard, as defined in the\n[EIP](https://eips.ethereum.org/EIPS/eip-165).\n * Implementers can declare support of contract interfaces, which can then be\nqueried by others (`ERC165Checker`).\n * For an implementation, see `ERC165`.", - "fullyImplemented": false, - "id": 23, - "linearizedBaseContracts": [ - 23 - ], - "name": "IERC165", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@dev Returns true if this contract implements the interface defined by\n`interfaceId`. 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This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. This\nfunction MAY throw to revert and reject the transfer.\nNote: the ERC721 contract address is always the message sender.\n@param operator The address which called `safeTransferFrom` function\n@param from The address which previously owned the token\n@param tokenId The NFT identifier which is being transferred\n@param data Additional data with no specified format\n@return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`", - "id": 138, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "onERC721Received", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 134, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 127, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3960:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 126, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "3960:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 129, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3978:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 128, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "3978:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 131, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "3992:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 130, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "3992:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 133, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "4009:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 132, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "4009:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "3959:68:1" - }, - "returnParameters": { - "id": 137, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 136, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 138, - "src": "4048:6:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 135, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "4048:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "4047:8:1" - }, - "scope": 139, - "src": "3934:122:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "3045:1013:1" - }, - { - "id": 140, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "4112:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "library", - "documentation": "@dev Wrappers over Solidity's arithmetic operations with added overflow\nchecks.\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\nin bugs, because programmers usually assume that an overflow raises an\nerror, which is the standard behavior in high level programming languages.\n`SafeMath` restores this intuition by reverting the transaction when an\noperation overflows.\n * Using this library instead of the unchecked operations eliminates an entire\nclass of bugs, so it's recommended to use it always.", - "fullyImplemented": true, - "id": 271, - "linearizedBaseContracts": [ - 271 - ], - "name": "SafeMath", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": { - "id": 164, - "nodeType": "Block", - "src": "5013:109:1", - "statements": [ - { - "assignments": [ - 150 - ], - "declarations": [ - { - "constant": false, - "id": 150, - "name": "c", - "nodeType": "VariableDeclaration", - "scope": 164, - "src": "5023:9:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 149, - 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"names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - 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Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - 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"typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "29224:15:1" - }, - "returnParameters": { - "id": 1146, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1145, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 1152, - "src": "29263:17:1", - "stateVariable": false, - "storageLocation": "storage", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - }, - "typeName": { - "baseType": { - "id": 1143, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "29263:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1144, - "length": null, - "nodeType": "ArrayTypeName", - "src": "29263:9:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - } - }, - "value": null, - "visibility": "internal" - 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"src": "30073:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1184, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30100:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1185, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30100:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "30073:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1187, - "nodeType": "ExpressionStatement", - "src": "30073:44:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1191, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1178, - "src": "30143:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1188, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30127:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1190, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "push", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30127:15:1", - "typeDescriptions": { - "typeIdentifier": "t_function_arraypush_nonpayable$_t_uint256_$returns$_t_uint256_$", - "typeString": "function (uint256) returns (uint256)" - } - }, - "id": 1192, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "30127:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1193, - "nodeType": "ExpressionStatement", - "src": "30127:24:1" - } - ] - }, - "documentation": "@dev Private function to add a token to this extension's token tracking data structures.\n@param tokenId uint256 ID of the token to be added to the tokens list", - "id": 1195, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1179, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1178, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1195, - "src": "30038:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1177, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30038:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30037:17:1" - }, - "returnParameters": { - "id": 1180, - "nodeType": "ParameterList", - "parameters": [], - "src": "30063:0:1" - }, - "scope": 1302, - "src": "29997:161:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1251, - "nodeType": "Block", - "src": "30854:1047:1", - "statements": [ - { - "assignments": [ - 1203 - ], - "declarations": [ - { - "constant": false, - "id": 1203, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1251, - "src": "31035:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1202, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31035:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1211, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1209, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "31090:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1204, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31060:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1206, - "indexExpression": { - "argumentTypes": null, - "id": 1205, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31073:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31060:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1207, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31060:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1208, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "31060:29:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1210, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "31060:32:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31035:57:1" - }, - { - "assignments": [ - 1213 - ], - "declarations": [ - { - "constant": false, - "id": 1213, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1251, - "src": "31102:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1212, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31102:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1217, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1214, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31123:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1216, - "indexExpression": { - "argumentTypes": null, - "id": 1215, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1199, - "src": "31141:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31123:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31102:47:1" - }, - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "id": 1220, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 1218, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31253:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "id": 1219, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31267:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31253:28:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 1244, - "nodeType": "IfStatement", - "src": "31249:323:1", - "trueBody": { - "id": 1243, - "nodeType": "Block", - "src": "31283:289:1", - "statements": [ - { - "assignments": [ - 1222 - ], - "declarations": [ - { - "constant": false, - "id": 1222, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1243, - "src": "31297:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1221, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31297:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1228, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1223, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31319:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1225, - "indexExpression": { - "argumentTypes": null, - "id": 1224, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31332:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1227, - "indexExpression": { - "argumentTypes": null, - "id": 1226, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31338:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:34:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - 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"isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - 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"typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 47, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "1257:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1207:64:1" - }, - "src": "1187:85:1" - }, - { - "body": null, - "documentation": "@dev Returns the number of NFTs in `owner`'s account.", - "id": 57, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "balanceOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 53, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 52, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 57, - "src": "1374:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 51, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1374:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1373:15:1" - }, - "returnParameters": { - "id": 56, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 55, - "name": "balance", - "nodeType": "VariableDeclaration", - "scope": 57, - "src": "1410:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 54, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1410:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1409:17:1" - }, - "scope": 124, - "src": "1355:72:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Returns the owner of the NFT specified by `tokenId`.", - "id": 64, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "ownerOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 60, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 59, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1531:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 58, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1531:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1530:17:1" - }, - "returnParameters": { - "id": 63, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 62, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1569:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 61, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1569:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1568:15:1" - }, - "scope": 124, - "src": "1514:70:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * \n * Requirements:\n- `from`, `to` cannot be zero.\n- `tokenId` must be owned by `from`.\n- If the caller is not `from`, it must be have been allowed to move this\nNFT by either `approve` or `setApproveForAll`.", - "id": 73, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 71, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 66, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "1992:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 65, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1992:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 68, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2006:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 67, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2006:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 70, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2018:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 69, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2018:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1991:43:1" - }, - "returnParameters": { - "id": 72, - "nodeType": "ParameterList", - "parameters": [], - "src": "2041:0:1" - }, - "scope": 124, - "src": "1966:76:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * Requirements:\n- If the caller is not `from`, it must be approved to move this NFT by\neither `approve` or `setApproveForAll`.", - "id": 82, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 80, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 75, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2339:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 74, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2339:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 77, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2353:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 76, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2353:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 79, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2365:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 78, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2365:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2338:43:1" - }, - "returnParameters": { - "id": 81, - "nodeType": "ParameterList", - "parameters": [], - "src": "2388:0:1" - }, - "scope": 124, - "src": "2317:72:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 89, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "approve", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 87, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 84, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2411:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 83, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2411:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 86, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2423:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 85, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2423:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2410:29:1" - }, - "returnParameters": { - "id": 88, - "nodeType": "ParameterList", - "parameters": [], - "src": "2446:0:1" - }, - "scope": 124, - "src": "2394:53:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 96, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "getApproved", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 92, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 91, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2473:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 90, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2473:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2472:17:1" - }, - "returnParameters": { - "id": 95, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 94, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2511:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 93, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2511:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2510:18:1" - }, - "scope": 124, - "src": "2452:77:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 103, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "setApprovalForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 101, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 98, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2562:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 97, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2562:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 100, - "name": "_approved", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2580:14:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 99, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2580:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2561:34:1" - }, - "returnParameters": { - "id": 102, - "nodeType": "ParameterList", - "parameters": [], - "src": "2602:0:1" - }, - "scope": 124, - "src": "2535:68:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 112, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "isApprovedForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 108, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 105, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2634:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 104, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2634:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 107, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2649:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 106, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2649:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2633:33:1" - }, - "returnParameters": { - "id": 111, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 110, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2688:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 109, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2688:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2687:6:1" - }, - "scope": 124, - "src": "2608:86:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 123, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 121, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 114, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2727:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 113, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2727:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 116, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2741:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 115, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2741:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 118, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2753:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 117, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2753:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 120, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2770:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 119, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "2770:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2726:62:1" - }, - "returnParameters": { - "id": 122, - "nodeType": "ParameterList", - "parameters": [], - "src": "2795:0:1" - }, - "scope": 124, - "src": "2701:95:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "972:1826:1" - }, - { - "id": 125, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "2867:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "contract", - "documentation": "@title ERC721 token receiver interface\n@dev Interface for any contract that wants to support safeTransfers\nfrom ERC721 asset contracts.", - "fullyImplemented": false, - "id": 139, - "linearizedBaseContracts": [ - 139 - ], - "name": "IERC721Receiver", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@notice Handle the receipt of an NFT\n@dev The ERC721 smart contract calls this function on the recipient\nafter a `safeTransfer`. This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. 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"names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - 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Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - }, - "returnParameters": { - "id": 370, - "nodeType": "ParameterList", - "parameters": [], - "src": "11598:0:1" - }, - "scope": 386, - "src": "11541:190:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "10321:1412:1" - }, - { - "id": 387, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "11793:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 388, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "11968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 389, - "nodeType": "InheritanceSpecifier", - "src": "11968:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 390, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "11976:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 391, - "nodeType": "InheritanceSpecifier", - "src": "11976:7:1" - } - ], - "contractDependencies": [ - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 944, - "linearizedBaseContracts": [ - 944, - 124, - 386, - 23 - ], - "name": "ERC721", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 394, - "libraryName": { - "contractScope": null, - "id": 392, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "11996:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "11990:27:1", - "typeName": { - "id": 393, - "name": "uint256", - 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"typeString": "library Counters" - } - }, - "nodeType": "UsingForDirective", - "src": "12053:36:1", - "typeName": { - "contractScope": null, - "id": 399, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12072:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - { - "constant": true, - "id": 403, - "name": "_ERC721_RECEIVED", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12267:53:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 401, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "12267:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783135306237613032", - "id": 402, - "isConstant": false, - 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"typeIdentifier": "t_mapping$_t_address_$_t_struct$_Counter_$296_storage_$", - "typeString": "mapping(address => struct Counters.Counter)" - }, - "valueType": { - "contractScope": null, - "id": 413, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12599:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 421, - "name": "_operatorApprovals", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12697:73:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", - "typeString": "mapping(address => mapping(address => bool))" - }, - "typeName": { - "id": 420, - "keyType": { - "id": 416, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12706:7:1", - 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"nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "27799:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1077, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27799:47:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1078, - "nodeType": "ExpressionStatement", - "src": "27799:47:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1080, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1061, - "src": "27885:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1081, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1063, - "src": "27889:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1079, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "27857:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1082, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27857:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1083, - "nodeType": "ExpressionStatement", - "src": "27857:40:1" - } - ] - }, - "documentation": "@dev Internal function to transfer ownership of a given token ID to another address.\nAs opposed to transferFrom, this imposes no restrictions on msg.sender.\n@param from current owner of the token\n@param to address to receive the ownership of the given token ID\n@param tokenId uint256 ID of the token to be transferred", - "id": 1085, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1064, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1059, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27688:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1058, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27688:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1061, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27702:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1060, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27702:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1063, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27714:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1062, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "27714:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "27687:43:1" - }, - "returnParameters": { - "id": 1065, - "nodeType": "ParameterList", - "parameters": [], - "src": "27740:0:1" - }, - "scope": 1302, - "src": "27665:239:1", - "stateMutability": "nonpayable", - "superFunction": 880, - "visibility": "internal" - }, - { - "body": { - "id": 1108, - "nodeType": "Block", - "src": "28214:143:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1095, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28236:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1096, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28240:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1092, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28224:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1094, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_mint", - "nodeType": "MemberAccess", - "referencedDeclaration": 768, - "src": "28224:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1097, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28224:24:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1098, - "nodeType": "ExpressionStatement", - "src": "28224:24:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1100, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28287:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1101, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28291:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1099, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "28259:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1102, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28259:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1103, - "nodeType": "ExpressionStatement", - "src": "28259:40:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1105, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28342:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1104, - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1195, - "src": "28310:31:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1106, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28310:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1107, - "nodeType": "ExpressionStatement", - "src": "28310:40:1" - } - ] - }, - "documentation": "@dev Internal function to mint a new token.\nReverts if the given token ID already exists.\n@param to address the beneficiary that will own the minted token\n@param tokenId uint256 ID of the token to be minted", - "id": 1109, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_mint", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1090, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1087, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28176:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1086, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28176:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1089, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28188:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1088, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28188:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28175:29:1" - }, - "returnParameters": { - "id": 1091, - "nodeType": "ParameterList", - "parameters": [], - "src": "28214:0:1" - }, - "scope": 1302, - "src": "28161:196:1", - "stateMutability": "nonpayable", - "superFunction": 768, - "visibility": "internal" - }, - { - "body": { - "id": 1138, - "nodeType": "Block", - "src": "28688:308:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1119, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28710:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1120, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28717:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1116, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28698:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1118, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_burn", - "nodeType": "MemberAccess", - "referencedDeclaration": 811, - "src": "28698:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1121, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28698:27:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1122, - "nodeType": "ExpressionStatement", - "src": "28698:27:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1124, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28769:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1125, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28776:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1123, - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "28736:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1126, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28736:48:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1127, - "nodeType": "ExpressionStatement", - "src": "28736:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1132, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1128, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "28903:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1130, - "indexExpression": { - "argumentTypes": null, - "id": 1129, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28921:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "28903:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1131, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "28932:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "28903:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1133, - "nodeType": "ExpressionStatement", - "src": "28903:30:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1135, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28981:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1134, - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1301, - "src": "28944:36:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1136, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28944:45:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1137, - "nodeType": "ExpressionStatement", - "src": "28944:45:1" - } - ] - }, - "documentation": "@dev Internal function to burn a specific token.\nReverts if the token does not exist.\nDeprecated, use _burn(uint256) instead.\n@param owner owner of the token to burn\n@param tokenId uint256 ID of the token being burned", - "id": 1139, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_burn", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1114, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1111, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28647:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1110, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28647:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1113, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28662:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1112, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28662:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28646:32:1" - }, - "returnParameters": { - "id": 1115, - "nodeType": "ParameterList", - "parameters": [], - "src": "28688:0:1" - }, - "scope": 1302, - "src": "28632:364:1", - "stateMutability": "nonpayable", - "superFunction": 811, - "visibility": "internal" - 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"typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "32485:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1259, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32463:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1260, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "32463:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1261, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1265, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32497:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1270, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1267, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "32518:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1269, - "indexExpression": { - "argumentTypes": null, - "id": 1268, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "32534:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32518:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32497:45:1" - }, - { - "assignments": [ - 1272 - ], - "declarations": [ - { - "constant": false, - "id": 1272, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32864:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1271, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32864:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1276, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1273, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32886:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1275, - "indexExpression": { - "argumentTypes": null, - "id": 1274, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1258, - "src": "32897:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32886:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32864:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1281, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1277, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32923:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1279, - "indexExpression": { - "argumentTypes": null, - "id": 1278, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "32934:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "32923:22:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1280, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "32948:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "32923:36:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1282, - "nodeType": "ExpressionStatement", - "src": "32923:36:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1287, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1283, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33027:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1285, - "indexExpression": { - "argumentTypes": null, - "id": 1284, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "33043:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33027:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1286, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "33058:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "33027:41:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1288, - "nodeType": "ExpressionStatement", - "src": "33027:41:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1292, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "33189:19:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1289, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "33189:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1291, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "33189:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1293, - "nodeType": "ExpressionStatement", - "src": "33189:19:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1298, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1294, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33218:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1296, - "indexExpression": { - "argumentTypes": null, - "id": 1295, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "33234:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33218:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1297, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "33245:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "33218:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1299, - "nodeType": "ExpressionStatement", - "src": "33218:28:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's token tracking data structures.\nThis has O(1) time complexity, but alters the order of the _allTokens array.\n@param tokenId uint256 ID of the token to be removed from the tokens list", - "id": 1301, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1255, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1254, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1301, - "src": "32235:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1253, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32235:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "32234:17:1" - }, - "returnParameters": { - "id": 1256, - "nodeType": "ParameterList", - "parameters": [], - "src": "32260:0:1" - }, - "scope": 1302, - "src": "32189:1064:1", - "stateMutability": "nonpayable", - 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May return an empty string.\n@param tokenId uint256 ID of the token to query", - "id": 1396, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "tokenURI", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1380, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1379, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1396, - "src": "35304:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1378, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "35304:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "35303:17:1" - }, - "returnParameters": { - "id": 1383, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1382, - "name": "", - 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"src": "36846:16:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1454, - "name": "ERC721Metadata", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 1448, - "src": "36864:14:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721Metadata_$1448", - "typeString": "contract ERC721Metadata" - } - }, - "id": 1455, - "nodeType": "InheritanceSpecifier", - "src": "36864:14:1" - } - ], - "contractDependencies": [ - 944, - 969, - 23, - 124, - 386, - 1302, - 1323, - 1448 - ], - "contractKind": "contract", - "documentation": "@title Full ERC721 Token\nThis implementation includes all the required and some optional functionality of the ERC721 standard\nMoreover, it includes approve all functionality using operator terminology\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 1468, - "linearizedBaseContracts": [ - 1468, - 1448, - 1323, - 1302, - 969, - 944, - 124, - 386, - 23 - ], - "name": "ERC721Full", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": { - "id": 1466, - "nodeType": "Block", - "src": "36976:64:1", - "statements": [] - }, - "documentation": null, - "id": 1467, - "implemented": true, - "kind": "constructor", - "modifiers": [ - { - "arguments": [ - { - "argumentTypes": null, - "id": 1462, - "name": "name", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1457, - "src": "36962:4:1", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string memory" - } - }, - { - "argumentTypes": null, - "id": 1463, - "name": "symbol", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1459, - "src": "36968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string memory" - } - } - ], - "id": 1464, - "modifierName": { - "argumentTypes": null, - "id": 1461, - "name": "ERC721Metadata", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1448, - "src": "36947:14:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_contract$_ERC721Metadata_$1448_$", - "typeString": "type(contract ERC721Metadata)" - } - }, - "nodeType": "ModifierInvocation", - "src": "36947:28:1" - } - ], - "name": "", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1460, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1457, - "name": "name", - "nodeType": "VariableDeclaration", - "scope": 1467, - "src": "36898:18:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1456, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "36898:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1459, - "name": "symbol", - "nodeType": "VariableDeclaration", - "scope": 1467, - "src": "36918:20:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1458, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "36918:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "36897:42:1" - }, - "returnParameters": { - "id": 1465, - "nodeType": "ParameterList", - "parameters": [], - "src": "36976:0:1" - }, - "scope": 1468, - "src": "36885:155:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "36815:227:1" - } - ], - "src": "61:36982:1" - }, - "compiler": { - "name": "solc", - "version": "0.5.0+commit.1d4f565a.Emscripten.clang" - }, - "networks": {}, - "schemaVersion": "3.0.2", - "updatedAt": "2019-09-05T15:01:08.957Z", - "devdoc": { - "details": "See https://eips.ethereum.org/EIPS/eip-721", - "methods": { - "balanceOf(address)": { - "details": "Returns the number of NFTs in `owner`'s account." - }, - "ownerOf(uint256)": { - "details": "Returns the owner of the NFT specified by `tokenId`." - }, - "safeTransferFrom(address,address,uint256)": { - "details": "Transfers a specific NFT (`tokenId`) from one account (`from`) to another (`to`). * * Requirements: - `from`, `to` cannot be zero. - `tokenId` must be owned by `from`. - If the caller is not `from`, it must be have been allowed to move this NFT by either `approve` or `setApproveForAll`." - }, - "supportsInterface(bytes4)": { - "details": "Returns true if this contract implements the interface defined by `interfaceId`. See the corresponding [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified) to learn more about how these ids are created. * This function call must use less than 30 000 gas." - }, - "transferFrom(address,address,uint256)": { - "details": "Transfers a specific NFT (`tokenId`) from one account (`from`) to another (`to`). * Requirements: - If the caller is not `from`, it must be approved to move this NFT by either `approve` or `setApproveForAll`." - } - }, - "title": "ERC-721 Non-Fungible Token Standard, optional metadata extension" - }, - "userdoc": { - "methods": {} - } -} \ No newline at end of file diff --git a/src/abis/IERC721Receiver.json b/src/abis/IERC721Receiver.json deleted file mode 100644 index ba8d307..0000000 --- a/src/abis/IERC721Receiver.json +++ /dev/null @@ -1,37496 +0,0 @@ -{ - "contractName": "IERC721Receiver", - "abi": [ - { - "constant": false, - "inputs": [ - { - "name": "operator", - "type": "address" - }, - { - "name": "from", - "type": "address" - }, - { - "name": "tokenId", - "type": "uint256" - }, - { - "name": "data", - "type": "bytes" - } - ], - "name": "onERC721Received", - "outputs": [ - { - "name": "", - "type": "bytes4" - } - ], - "payable": false, - "stateMutability": "nonpayable", - "type": "function" - } - ], - "bytecode": "0x", - "deployedBytecode": "0x", - "sourceMap": "", - "deployedSourceMap": "", - "source": "\n// File: @openzeppelin/contracts/introspection/IERC165.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * [EIP](https://eips.ethereum.org/EIPS/eip-165).\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others (`ERC165Checker`).\n *\n * For an implementation, see `ERC165`.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ncontract IERC721 is IERC165 {\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of NFTs in `owner`'s account.\n */\n function balanceOf(address owner) public view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the NFT specified by `tokenId`.\n */\n function ownerOf(uint256 tokenId) public view returns (address owner);\n\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * \n *\n * Requirements:\n * - `from`, `to` cannot be zero.\n * - `tokenId` must be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this\n * NFT by either `approve` or `setApproveForAll`.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public;\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * Requirements:\n * - If the caller is not `from`, it must be approved to move this NFT by\n * either `approve` or `setApproveForAll`.\n */\n function transferFrom(address from, address to, uint256 tokenId) public;\n function approve(address to, uint256 tokenId) public;\n function getApproved(uint256 tokenId) public view returns (address operator);\n\n function setApprovalForAll(address operator, bool _approved) public;\n function isApprovedForAll(address owner, address operator) public view returns (bool);\n\n\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public;\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ncontract IERC721Receiver {\n /**\n * @notice Handle the receipt of an NFT\n * @dev The ERC721 smart contract calls this function on the recipient\n * after a `safeTransfer`. This function MUST return the function selector,\n * otherwise the caller will revert the transaction. The selector to be\n * returned can be obtained as `this.onERC721Received.selector`. This\n * function MAY throw to revert and reject the transfer.\n * Note: the ERC721 contract address is always the message sender.\n * @param operator The address which called `safeTransferFrom` function\n * @param from The address which previously owned the token\n * @param tokenId The NFT identifier which is being transferred\n * @param data Additional data with no specified format\n * @return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n */\n function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data)\n public returns (bytes4);\n}\n\n// File: @openzeppelin/contracts/math/SafeMath.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\n * checks.\n *\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\n * in bugs, because programmers usually assume that an overflow raises an\n * error, which is the standard behavior in high level programming languages.\n * `SafeMath` restores this intuition by reverting the transaction when an\n * operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeMath {\n /**\n * @dev Returns the addition of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `+` operator.\n *\n * Requirements:\n * - Addition cannot overflow.\n */\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting on\n * overflow (when the result is negative).\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n * - Subtraction cannot overflow.\n */\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b <= a, \"SafeMath: subtraction overflow\");\n uint256 c = a - b;\n\n return c;\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `*` operator.\n *\n * Requirements:\n * - Multiplication cannot overflow.\n */\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers. Reverts on\n * division by zero. The result is rounded towards zero.\n *\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n * uses an invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n // Solidity only automatically asserts when dividing by 0\n require(b > 0, \"SafeMath: division by zero\");\n uint256 c = a / b;\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n return c;\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * Reverts when dividing by zero.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b != 0, \"SafeMath: modulo by zero\");\n return a % b;\n }\n}\n\n// File: @openzeppelin/contracts/utils/Address.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Collection of functions related to the address type,\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * This test is non-exhaustive, and there may be false-negatives: during the\n * execution of a contract's constructor, its address will be reported as\n * not containing a contract.\n *\n * > It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies in extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n}\n\n// File: @openzeppelin/contracts/drafts/Counters.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title Counters\n * @author Matt Condon (@shrugs)\n * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number\n * of elements in a mapping, issuing ERC721 ids, or counting request ids.\n *\n * Include with `using Counters for Counters.Counter;`\n * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath\n * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never\n * directly accessed.\n */\nlibrary Counters {\n using SafeMath for uint256;\n\n struct Counter {\n // This variable should never be directly accessed by users of the library: interactions must be restricted to\n // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add\n // this feature: see https://github.com/ethereum/solidity/issues/4637\n uint256 _value; // default: 0\n }\n\n function current(Counter storage counter) internal view returns (uint256) {\n return counter._value;\n }\n\n function increment(Counter storage counter) internal {\n counter._value += 1;\n }\n\n function decrement(Counter storage counter) internal {\n counter._value = counter._value.sub(1);\n }\n}\n\n// File: @openzeppelin/contracts/introspection/ERC165.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Implementation of the `IERC165` interface.\n *\n * Contracts may inherit from this and call `_registerInterface` to declare\n * their support of an interface.\n */\ncontract ERC165 is IERC165 {\n /*\n * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7\n */\n bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;\n\n /**\n * @dev Mapping of interface ids to whether or not it's supported.\n */\n mapping(bytes4 => bool) private _supportedInterfaces;\n\n constructor () internal {\n // Derived contracts need only register support for their own interfaces,\n // we register support for ERC165 itself here\n _registerInterface(_INTERFACE_ID_ERC165);\n }\n\n /**\n * @dev See `IERC165.supportsInterface`.\n *\n * Time complexity O(1), guaranteed to always use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool) {\n return _supportedInterfaces[interfaceId];\n }\n\n /**\n * @dev Registers the contract as an implementer of the interface defined by\n * `interfaceId`. Support of the actual ERC165 interface is automatic and\n * registering its interface id is not required.\n *\n * See `IERC165.supportsInterface`.\n *\n * Requirements:\n *\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).\n */\n function _registerInterface(bytes4 interfaceId) internal {\n require(interfaceId != 0xffffffff, \"ERC165: invalid interface id\");\n _supportedInterfaces[interfaceId] = true;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n\n\n\n/**\n * @title ERC721 Non-Fungible Token Standard basic implementation\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721 is ERC165, IERC721 {\n using SafeMath for uint256;\n using Address for address;\n using Counters for Counters.Counter;\n\n // Equals to `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`\n bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;\n\n // Mapping from token ID to owner\n mapping (uint256 => address) private _tokenOwner;\n\n // Mapping from token ID to approved address\n mapping (uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to number of owned token\n mapping (address => Counters.Counter) private _ownedTokensCount;\n\n // Mapping from owner to operator approvals\n mapping (address => mapping (address => bool)) private _operatorApprovals;\n\n /*\n * bytes4(keccak256('balanceOf(address)')) == 0x70a08231\n * bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e\n * bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3\n * bytes4(keccak256('getApproved(uint256)')) == 0x081812fc\n * bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465\n * bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c\n * bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd\n * bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e\n * bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde\n *\n * => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^\n * 0xa22cb465 ^ 0xe985e9c ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd\n */\n bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;\n\n constructor () public {\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721);\n }\n\n /**\n * @dev Gets the balance of the specified address.\n * @param owner address to query the balance of\n * @return uint256 representing the amount owned by the passed address\n */\n function balanceOf(address owner) public view returns (uint256) {\n require(owner != address(0), \"ERC721: balance query for the zero address\");\n\n return _ownedTokensCount[owner].current();\n }\n\n /**\n * @dev Gets the owner of the specified token ID.\n * @param tokenId uint256 ID of the token to query the owner of\n * @return address currently marked as the owner of the given token ID\n */\n function ownerOf(uint256 tokenId) public view returns (address) {\n address owner = _tokenOwner[tokenId];\n require(owner != address(0), \"ERC721: owner query for nonexistent token\");\n\n return owner;\n }\n\n /**\n * @dev Approves another address to transfer the given token ID\n * The zero address indicates there is no approved address.\n * There can only be one approved address per token at a given time.\n * Can only be called by the token owner or an approved operator.\n * @param to address to be approved for the given token ID\n * @param tokenId uint256 ID of the token to be approved\n */\n function approve(address to, uint256 tokenId) public {\n address owner = ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(msg.sender == owner || isApprovedForAll(owner, msg.sender),\n \"ERC721: approve caller is not owner nor approved for all\"\n );\n\n _tokenApprovals[tokenId] = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Gets the approved address for a token ID, or zero if no address set\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to query the approval of\n * @return address currently approved for the given token ID\n */\n function getApproved(uint256 tokenId) public view returns (address) {\n require(_exists(tokenId), \"ERC721: approved query for nonexistent token\");\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev Sets or unsets the approval of a given operator\n * An operator is allowed to transfer all tokens of the sender on their behalf.\n * @param to operator address to set the approval\n * @param approved representing the status of the approval to be set\n */\n function setApprovalForAll(address to, bool approved) public {\n require(to != msg.sender, \"ERC721: approve to caller\");\n\n _operatorApprovals[msg.sender][to] = approved;\n emit ApprovalForAll(msg.sender, to, approved);\n }\n\n /**\n * @dev Tells whether an operator is approved by a given owner.\n * @param owner owner address which you want to query the approval of\n * @param operator operator address which you want to query the approval of\n * @return bool whether the given operator is approved by the given owner\n */\n function isApprovedForAll(address owner, address operator) public view returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev Transfers the ownership of a given token ID to another address.\n * Usage of this method is discouraged, use `safeTransferFrom` whenever possible.\n * Requires the msg.sender to be the owner, approved, or operator.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function transferFrom(address from, address to, uint256 tokenId) public {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(msg.sender, tokenId), \"ERC721: transfer caller is not owner nor approved\");\n\n _transferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes data to send along with a safe transfer check\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public {\n transferFrom(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, _data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns whether the specified token exists.\n * @param tokenId uint256 ID of the token to query the existence of\n * @return bool whether the token exists\n */\n function _exists(uint256 tokenId) internal view returns (bool) {\n address owner = _tokenOwner[tokenId];\n return owner != address(0);\n }\n\n /**\n * @dev Returns whether the given spender can transfer a given token ID.\n * @param spender address of the spender to query\n * @param tokenId uint256 ID of the token to be transferred\n * @return bool whether the msg.sender is approved for the given token ID,\n * is an operator of the owner, or is the owner of the token\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view returns (bool) {\n require(_exists(tokenId), \"ERC721: operator query for nonexistent token\");\n address owner = ownerOf(tokenId);\n return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to The address that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _tokenOwner[tokenId] = to;\n _ownedTokensCount[to].increment();\n\n emit Transfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n require(ownerOf(tokenId) == owner, \"ERC721: burn of token that is not own\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[owner].decrement();\n _tokenOwner[tokenId] = address(0);\n\n emit Transfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(uint256 tokenId) internal {\n _burn(ownerOf(tokenId), tokenId);\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n require(ownerOf(tokenId) == from, \"ERC721: transfer of token that is not own\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[from].decrement();\n _ownedTokensCount[to].increment();\n\n _tokenOwner[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n }\n\n /**\n * @dev Internal function to invoke `onERC721Received` on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * This function is deprecated.\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data)\n internal returns (bool)\n {\n if (!to.isContract()) {\n return true;\n }\n\n bytes4 retval = IERC721Receiver(to).onERC721Received(msg.sender, from, tokenId, _data);\n return (retval == _ERC721_RECEIVED);\n }\n\n /**\n * @dev Private function to clear current approval of a given token ID.\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _clearApproval(uint256 tokenId) private {\n if (_tokenApprovals[tokenId] != address(0)) {\n _tokenApprovals[tokenId] = address(0);\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Enumerable is IERC721 {\n function totalSupply() public view returns (uint256);\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256 tokenId);\n\n function tokenByIndex(uint256 index) public view returns (uint256);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title ERC-721 Non-Fungible Token with optional enumeration extension logic\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Enumerable is ERC165, ERC721, IERC721Enumerable {\n // Mapping from owner to list of owned token IDs\n mapping(address => uint256[]) private _ownedTokens;\n\n // Mapping from token ID to index of the owner tokens list\n mapping(uint256 => uint256) private _ownedTokensIndex;\n\n // Array with all token ids, used for enumeration\n uint256[] private _allTokens;\n\n // Mapping from token id to position in the allTokens array\n mapping(uint256 => uint256) private _allTokensIndex;\n\n /*\n * bytes4(keccak256('totalSupply()')) == 0x18160ddd\n * bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59\n * bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7\n *\n * => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63\n */\n bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;\n\n /**\n * @dev Constructor function.\n */\n constructor () public {\n // register the supported interface to conform to ERC721Enumerable via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);\n }\n\n /**\n * @dev Gets the token ID at a given index of the tokens list of the requested owner.\n * @param owner address owning the tokens list to be accessed\n * @param index uint256 representing the index to be accessed of the requested tokens list\n * @return uint256 token ID at the given index of the tokens list owned by the requested address\n */\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) {\n require(index < balanceOf(owner), \"ERC721Enumerable: owner index out of bounds\");\n return _ownedTokens[owner][index];\n }\n\n /**\n * @dev Gets the total amount of tokens stored by the contract.\n * @return uint256 representing the total amount of tokens\n */\n function totalSupply() public view returns (uint256) {\n return _allTokens.length;\n }\n\n /**\n * @dev Gets the token ID at a given index of all the tokens in this contract\n * Reverts if the index is greater or equal to the total number of tokens.\n * @param index uint256 representing the index to be accessed of the tokens list\n * @return uint256 token ID at the given index of the tokens list\n */\n function tokenByIndex(uint256 index) public view returns (uint256) {\n require(index < totalSupply(), \"ERC721Enumerable: global index out of bounds\");\n return _allTokens[index];\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n super._transferFrom(from, to, tokenId);\n\n _removeTokenFromOwnerEnumeration(from, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to address the beneficiary that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n super._mint(to, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n\n _addTokenToAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n _removeTokenFromOwnerEnumeration(owner, tokenId);\n // Since tokenId will be deleted, we can clear its slot in _ownedTokensIndex to trigger a gas refund\n _ownedTokensIndex[tokenId] = 0;\n\n _removeTokenFromAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Gets the list of token IDs of the requested owner.\n * @param owner address owning the tokens\n * @return uint256[] List of token IDs owned by the requested address\n */\n function _tokensOfOwner(address owner) internal view returns (uint256[] storage) {\n return _ownedTokens[owner];\n }\n\n /**\n * @dev Private function to add a token to this extension's ownership-tracking data structures.\n * @param to address representing the new owner of the given token ID\n * @param tokenId uint256 ID of the token to be added to the tokens list of the given address\n */\n function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {\n _ownedTokensIndex[tokenId] = _ownedTokens[to].length;\n _ownedTokens[to].push(tokenId);\n }\n\n /**\n * @dev Private function to add a token to this extension's token tracking data structures.\n * @param tokenId uint256 ID of the token to be added to the tokens list\n */\n function _addTokenToAllTokensEnumeration(uint256 tokenId) private {\n _allTokensIndex[tokenId] = _allTokens.length;\n _allTokens.push(tokenId);\n }\n\n /**\n * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\n * while the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\n * gas optimizations e.g. when performing a transfer operation (avoiding double writes).\n * This has O(1) time complexity, but alters the order of the _ownedTokens array.\n * @param from address representing the previous owner of the given token ID\n * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address\n */\n function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {\n // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _ownedTokens[from].length.sub(1);\n uint256 tokenIndex = _ownedTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary\n if (tokenIndex != lastTokenIndex) {\n uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];\n\n _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n }\n\n // This also deletes the contents at the last position of the array\n _ownedTokens[from].length--;\n\n // Note that _ownedTokensIndex[tokenId] hasn't been cleared: it still points to the old slot (now occupied by\n // lastTokenId, or just over the end of the array if the token was the last one).\n }\n\n /**\n * @dev Private function to remove a token from this extension's token tracking data structures.\n * This has O(1) time complexity, but alters the order of the _allTokens array.\n * @param tokenId uint256 ID of the token to be removed from the tokens list\n */\n function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {\n // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _allTokens.length.sub(1);\n uint256 tokenIndex = _allTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so\n // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding\n // an 'if' statement (like in _removeTokenFromOwnerEnumeration)\n uint256 lastTokenId = _allTokens[lastTokenIndex];\n\n _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n\n // This also deletes the contents at the last position of the array\n _allTokens.length--;\n _allTokensIndex[tokenId] = 0;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Metadata is IERC721 {\n function name() external view returns (string memory);\n function symbol() external view returns (string memory);\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n\n\ncontract ERC721Metadata is ERC165, ERC721, IERC721Metadata {\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Optional mapping for token URIs\n mapping(uint256 => string) private _tokenURIs;\n\n /*\n * bytes4(keccak256('name()')) == 0x06fdde03\n * bytes4(keccak256('symbol()')) == 0x95d89b41\n * bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd\n *\n * => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f\n */\n bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;\n\n /**\n * @dev Constructor function\n */\n constructor (string memory name, string memory symbol) public {\n _name = name;\n _symbol = symbol;\n\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_METADATA);\n }\n\n /**\n * @dev Gets the token name.\n * @return string representing the token name\n */\n function name() external view returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Gets the token symbol.\n * @return string representing the token symbol\n */\n function symbol() external view returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns an URI for a given token ID.\n * Throws if the token ID does not exist. May return an empty string.\n * @param tokenId uint256 ID of the token to query\n */\n function tokenURI(uint256 tokenId) external view returns (string memory) {\n require(_exists(tokenId), \"ERC721Metadata: URI query for nonexistent token\");\n return _tokenURIs[tokenId];\n }\n\n /**\n * @dev Internal function to set the token URI for a given token.\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to set its URI\n * @param uri string URI to assign\n */\n function _setTokenURI(uint256 tokenId, string memory uri) internal {\n require(_exists(tokenId), \"ERC721Metadata: URI set of nonexistent token\");\n _tokenURIs[tokenId] = uri;\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned by the msg.sender\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n // Clear metadata (if any)\n if (bytes(_tokenURIs[tokenId]).length != 0) {\n delete _tokenURIs[tokenId];\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Full.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title Full ERC721 Token\n * This implementation includes all the required and some optional functionality of the ERC721 standard\n * Moreover, it includes approve all functionality using operator terminology\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Full is ERC721, ERC721Enumerable, ERC721Metadata {\n constructor (string memory name, string memory symbol) public ERC721Metadata(name, symbol) {\n // solhint-disable-previous-line no-empty-blocks\n }\n}\n", - "sourcePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "ast": { - "absolutePath": "/Users/gregory/code/nft/src/contracts/ERC721Full.sol", - "exportedSymbols": { - "Address": [ - 289 - ], - "Counters": [ - 336 - ], - "ERC165": [ - 386 - ], - "ERC721": [ - 944 - ], - "ERC721Enumerable": [ - 1302 - ], - "ERC721Full": [ - 1468 - ], - "ERC721Metadata": [ - 1448 - ], - "IERC165": [ - 23 - ], - "IERC721": [ - 124 - ], - "IERC721Enumerable": [ - 969 - ], - "IERC721Metadata": [ - 1323 - ], - "IERC721Receiver": [ - 139 - ], - "SafeMath": [ - 271 - ] - }, - "id": 1469, - "nodeType": "SourceUnit", - "nodes": [ - { - "id": 15, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "61:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "interface", - "documentation": "@dev Interface of the ERC165 standard, as defined in the\n[EIP](https://eips.ethereum.org/EIPS/eip-165).\n * Implementers can declare support of contract interfaces, which can then be\nqueried by others (`ERC165Checker`).\n * For an implementation, see `ERC165`.", - "fullyImplemented": false, - "id": 23, - "linearizedBaseContracts": [ - 23 - ], - "name": "IERC165", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@dev Returns true if this contract implements the interface defined by\n`interfaceId`. 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"typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 47, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "1257:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1207:64:1" - }, - "src": "1187:85:1" - }, - { - "body": null, - "documentation": "@dev Returns the number of NFTs in `owner`'s account.", - "id": 57, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "balanceOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 53, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 52, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 57, - "src": "1374:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 51, - "name": "address", - "nodeType": "ElementaryTypeName", - 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"documentation": "@dev Returns the owner of the NFT specified by `tokenId`.", - "id": 64, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "ownerOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 60, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 59, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1531:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 58, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1531:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1530:17:1" - }, - "returnParameters": { - "id": 63, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 62, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1569:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 61, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1569:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1568:15:1" - }, - "scope": 124, - "src": "1514:70:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * \n * Requirements:\n- `from`, `to` cannot be zero.\n- `tokenId` must be owned by `from`.\n- If the caller is not `from`, it must be have been allowed to move this\nNFT by either `approve` or `setApproveForAll`.", - "id": 73, - "implemented": false, - "kind": "function", - 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"id": 67, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2006:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 70, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2018:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 69, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2018:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1991:43:1" - }, - "returnParameters": { - "id": 72, - "nodeType": "ParameterList", - "parameters": [], - "src": "2041:0:1" - }, - "scope": 124, - "src": "1966:76:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * Requirements:\n- If the caller is not `from`, it must be approved to move this NFT by\neither `approve` or `setApproveForAll`.", - "id": 82, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 80, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 75, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2339:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 74, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2339:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 77, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2353:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 76, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2353:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 79, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2365:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 78, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2365:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2338:43:1" - }, - "returnParameters": { - "id": 81, - "nodeType": "ParameterList", - "parameters": [], - "src": "2388:0:1" - }, - "scope": 124, - "src": "2317:72:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 89, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "approve", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 87, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 84, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2411:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 83, - "name": "address", - 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}, - { - "body": null, - "documentation": null, - "id": 96, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "getApproved", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 92, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 91, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2473:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 90, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2473:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2472:17:1" - }, - "returnParameters": { - "id": 95, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 94, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2511:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 93, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2511:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2510:18:1" - }, - "scope": 124, - "src": "2452:77:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 103, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "setApprovalForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 101, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 98, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2562:16:1", - 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"nodeType": "ParameterList", - "parameters": [], - "src": "2602:0:1" - }, - "scope": 124, - "src": "2535:68:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 112, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "isApprovedForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 108, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 105, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2634:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 104, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2634:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 107, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2649:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 106, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2649:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2633:33:1" - }, - "returnParameters": { - "id": 111, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 110, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2688:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 109, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2688:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2687:6:1" - }, - "scope": 124, - "src": "2608:86:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 123, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 121, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 114, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2727:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 113, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2727:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 116, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2741:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 115, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2741:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 118, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2753:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 117, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2753:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 120, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2770:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 119, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "2770:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2726:62:1" - }, - "returnParameters": { - "id": 122, - "nodeType": "ParameterList", - "parameters": [], - "src": "2795:0:1" - }, - "scope": 124, - "src": "2701:95:1", - "stateMutability": "nonpayable", - 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This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. 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"names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - 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Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - }, - "returnParameters": { - "id": 370, - "nodeType": "ParameterList", - "parameters": [], - "src": "11598:0:1" - }, - "scope": 386, - "src": "11541:190:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "10321:1412:1" - }, - { - "id": 387, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "11793:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 388, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "11968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 389, - "nodeType": "InheritanceSpecifier", - "src": "11968:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 390, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "11976:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 391, - "nodeType": "InheritanceSpecifier", - "src": "11976:7:1" - } - ], - "contractDependencies": [ - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 944, - "linearizedBaseContracts": [ - 944, - 124, - 386, - 23 - ], - "name": "ERC721", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 394, - "libraryName": { - "contractScope": null, - "id": 392, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "11996:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "11990:27:1", - "typeName": { - "id": 393, - "name": "uint256", - 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"typeString": "library Counters" - } - }, - "nodeType": "UsingForDirective", - "src": "12053:36:1", - "typeName": { - "contractScope": null, - "id": 399, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12072:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - { - "constant": true, - "id": 403, - "name": "_ERC721_RECEIVED", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12267:53:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 401, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "12267:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783135306237613032", - "id": 402, - "isConstant": false, - 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"typeIdentifier": "t_mapping$_t_address_$_t_struct$_Counter_$296_storage_$", - "typeString": "mapping(address => struct Counters.Counter)" - }, - "valueType": { - "contractScope": null, - "id": 413, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12599:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 421, - "name": "_operatorApprovals", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12697:73:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", - "typeString": "mapping(address => mapping(address => bool))" - }, - "typeName": { - "id": 420, - "keyType": { - "id": 416, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12706:7:1", - 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"nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "27799:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1077, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27799:47:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1078, - "nodeType": "ExpressionStatement", - "src": "27799:47:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1080, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1061, - "src": "27885:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1081, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1063, - "src": "27889:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1079, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "27857:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1082, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "27857:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1083, - "nodeType": "ExpressionStatement", - "src": "27857:40:1" - } - ] - }, - "documentation": "@dev Internal function to transfer ownership of a given token ID to another address.\nAs opposed to transferFrom, this imposes no restrictions on msg.sender.\n@param from current owner of the token\n@param to address to receive the ownership of the given token ID\n@param tokenId uint256 ID of the token to be transferred", - "id": 1085, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1064, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1059, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27688:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1058, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27688:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1061, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27702:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1060, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "27702:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1063, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1085, - "src": "27714:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1062, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "27714:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "27687:43:1" - }, - "returnParameters": { - "id": 1065, - "nodeType": "ParameterList", - "parameters": [], - "src": "27740:0:1" - }, - "scope": 1302, - "src": "27665:239:1", - "stateMutability": "nonpayable", - "superFunction": 880, - "visibility": "internal" - }, - { - "body": { - "id": 1108, - "nodeType": "Block", - "src": "28214:143:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1095, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28236:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1096, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28240:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1092, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28224:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1094, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_mint", - "nodeType": "MemberAccess", - "referencedDeclaration": 768, - "src": "28224:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1097, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28224:24:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1098, - "nodeType": "ExpressionStatement", - "src": "28224:24:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1100, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28287:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1101, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28291:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1099, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "28259:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1102, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28259:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1103, - "nodeType": "ExpressionStatement", - "src": "28259:40:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1105, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28342:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1104, - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1195, - "src": "28310:31:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1106, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28310:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1107, - "nodeType": "ExpressionStatement", - "src": "28310:40:1" - } - ] - }, - "documentation": "@dev Internal function to mint a new token.\nReverts if the given token ID already exists.\n@param to address the beneficiary that will own the minted token\n@param tokenId uint256 ID of the token to be minted", - "id": 1109, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_mint", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1090, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1087, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28176:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1086, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28176:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1089, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1109, - "src": "28188:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1088, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28188:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28175:29:1" - }, - "returnParameters": { - "id": 1091, - "nodeType": "ParameterList", - "parameters": [], - "src": "28214:0:1" - }, - "scope": 1302, - "src": "28161:196:1", - "stateMutability": "nonpayable", - "superFunction": 768, - "visibility": "internal" - }, - { - "body": { - "id": 1138, - "nodeType": "Block", - "src": "28688:308:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1119, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28710:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1120, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28717:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1116, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28698:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Enumerable_$1302", - "typeString": "contract super ERC721Enumerable" - } - }, - "id": 1118, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_burn", - "nodeType": "MemberAccess", - "referencedDeclaration": 811, - "src": "28698:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1121, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28698:27:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1122, - "nodeType": "ExpressionStatement", - "src": "28698:27:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1124, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28769:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1125, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28776:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1123, - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "28736:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1126, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28736:48:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1127, - "nodeType": "ExpressionStatement", - "src": "28736:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1132, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1128, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "28903:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1130, - "indexExpression": { - "argumentTypes": null, - "id": 1129, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28921:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "28903:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1131, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "28932:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "28903:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1133, - "nodeType": "ExpressionStatement", - "src": "28903:30:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1135, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28981:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1134, - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1301, - "src": "28944:36:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1136, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28944:45:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1137, - "nodeType": "ExpressionStatement", - "src": "28944:45:1" - } - ] - }, - "documentation": "@dev Internal function to burn a specific token.\nReverts if the token does not exist.\nDeprecated, use _burn(uint256) instead.\n@param owner owner of the token to burn\n@param tokenId uint256 ID of the token being burned", - "id": 1139, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_burn", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1114, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1111, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28647:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1110, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "28647:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1113, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28662:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1112, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28662:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28646:32:1" - }, - "returnParameters": { - "id": 1115, - "nodeType": "ParameterList", - "parameters": [], - "src": "28688:0:1" - }, - "scope": 1302, - "src": "28632:364:1", - "stateMutability": "nonpayable", - "superFunction": 811, - "visibility": "internal" - 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"typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "32485:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1259, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32463:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1260, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "32463:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1261, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1265, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32497:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1270, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1267, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "32518:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1269, - "indexExpression": { - "argumentTypes": null, - "id": 1268, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "32534:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32518:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32497:45:1" - }, - { - "assignments": [ - 1272 - ], - "declarations": [ - { - "constant": false, - "id": 1272, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32864:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1271, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32864:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1276, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1273, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32886:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1275, - "indexExpression": { - "argumentTypes": null, - "id": 1274, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1258, - "src": "32897:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32886:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32864:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1281, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1277, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32923:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1279, - "indexExpression": { - "argumentTypes": null, - "id": 1278, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "32934:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "32923:22:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1280, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "32948:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "32923:36:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1282, - "nodeType": "ExpressionStatement", - "src": "32923:36:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1287, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1283, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33027:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1285, - "indexExpression": { - "argumentTypes": null, - "id": 1284, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "33043:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33027:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1286, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "33058:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "33027:41:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1288, - "nodeType": "ExpressionStatement", - "src": "33027:41:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1292, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "33189:19:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1289, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "33189:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1291, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "33189:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1293, - "nodeType": "ExpressionStatement", - "src": "33189:19:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1298, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1294, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33218:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1296, - "indexExpression": { - "argumentTypes": null, - "id": 1295, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "33234:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33218:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1297, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "33245:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "33218:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1299, - "nodeType": "ExpressionStatement", - "src": "33218:28:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's token tracking data structures.\nThis has O(1) time complexity, but alters the order of the _allTokens array.\n@param tokenId uint256 ID of the token to be removed from the tokens list", - "id": 1301, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1255, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1254, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1301, - "src": "32235:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1253, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32235:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "32234:17:1" - }, - "returnParameters": { - "id": 1256, - "nodeType": "ParameterList", - "parameters": [], - "src": "32260:0:1" - }, - "scope": 1302, - "src": "32189:1064:1", - "stateMutability": "nonpayable", - 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May return an empty string.\n@param tokenId uint256 ID of the token to query", - "id": 1396, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "tokenURI", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1380, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1379, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1396, - "src": "35304:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1378, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "35304:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "35303:17:1" - }, - "returnParameters": { - "id": 1383, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1382, - "name": "", - 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} - }, - "id": 329, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "10032:18:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 331, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "10032:21:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "10015:38:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 333, - "nodeType": "ExpressionStatement", - "src": "10015:38:1" - } - ] - }, - "documentation": null, - "id": 335, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "decrement", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 322, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 321, - "name": "counter", - "nodeType": "VariableDeclaration", - "scope": 335, - "src": "9971:23:1", - "stateVariable": false, - "storageLocation": "storage", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - }, - "typeName": { - "contractScope": null, - "id": 320, - "name": "Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "9971:7:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "9970:25:1" - }, - "returnParameters": { - "id": 323, - "nodeType": "ParameterList", - "parameters": [], - "src": "10005:0:1" - }, - "scope": 336, - "src": "9952:108:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "9303:759:1" - }, - { - "id": 337, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "10123:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 338, - "name": "IERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 23, - "src": "10340:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC165_$23", - "typeString": "contract IERC165" - } - }, - "id": 339, - "nodeType": "InheritanceSpecifier", - "src": "10340:7:1" - } - ], - "contractDependencies": [ - 23 - ], - "contractKind": "contract", - "documentation": "@dev Implementation of the `IERC165` interface.\n * Contracts may inherit from this and call `_registerInterface` to declare\ntheir support of an interface.", - "fullyImplemented": true, - "id": 386, - "linearizedBaseContracts": [ - 386, - 23 - ], - "name": "ERC165", - "nodeType": "ContractDefinition", - "nodes": [ - { - "constant": true, - "id": 342, - "name": "_INTERFACE_ID_ERC165", - "nodeType": "VariableDeclaration", - "scope": 386, - "src": "10437:57:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 340, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "10437:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783031666663396137", - "id": 341, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "10484:10:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_33540519_by_1", - "typeString": "int_const 33540519" - }, - "value": "0x01ffc9a7" - }, - "visibility": "private" - }, - { - "constant": false, - "id": 346, - "name": "_supportedInterfaces", - "nodeType": "VariableDeclaration", - "scope": 386, - "src": "10588:52:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - }, - "typeName": { - "id": 345, - "keyType": { - "id": 343, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "10596:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "Mapping", - "src": "10588:23:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - }, - "valueType": { - "id": 344, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "10606:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "body": { - "id": 353, - "nodeType": "Block", - "src": "10671:193:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 350, - "name": "_INTERFACE_ID_ERC165", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 342, - "src": "10836:20:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - ], - "id": 349, - "name": "_registerInterface", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 385, - "src": "10817:18:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_bytes4_$returns$__$", - "typeString": "function (bytes4)" - } - }, - "id": 351, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "10817:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 352, - "nodeType": "ExpressionStatement", - "src": "10817:40:1" - } - ] - }, - "documentation": null, - "id": 354, - "implemented": true, - "kind": "constructor", - "modifiers": [], - "name": "", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 347, - "nodeType": "ParameterList", - "parameters": [], - "src": "10659:2:1" - }, - "returnParameters": { - "id": 348, - "nodeType": "ParameterList", - "parameters": [], - "src": "10671:0:1" - }, - "scope": 386, - "src": "10647:217:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 365, - "nodeType": "Block", - "src": "11090:57:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 361, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11107:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 363, - "indexExpression": { - "argumentTypes": null, - "id": 362, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 356, - "src": "11128:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "11107:33:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "functionReturnParameters": 360, - "id": 364, - "nodeType": "Return", - "src": "11100:40:1" - } - ] - }, - "documentation": "@dev See `IERC165.supportsInterface`.\n * Time complexity O(1), guaranteed to always use less than 30 000 gas.", - "id": 366, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "supportsInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 357, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 356, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 366, - "src": "11041:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 355, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11041:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11040:20:1" - }, - "returnParameters": { - "id": 360, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 359, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 366, - "src": "11084:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 358, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "11084:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11083:6:1" - }, - "scope": 386, - "src": "11014:133:1", - "stateMutability": "view", - "superFunction": 22, - "visibility": "external" - }, - { - "body": { - "id": 384, - "nodeType": "Block", - "src": "11598:133:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "id": 374, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 372, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11616:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "hexValue": "30786666666666666666", - "id": 373, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11631:10:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_4294967295_by_1", - "typeString": "int_const 4294967295" - }, - "value": "0xffffffff" - }, - "src": "11616:25:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - { - "argumentTypes": null, - "hexValue": "4552433136353a20696e76616c696420696e74657266616365206964", - "id": 375, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "string", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11643:30:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_stringliteral_282912c0dfceceb28d77d0333f496b83948f9ba5b3154358a8b140b849289dee", - "typeString": "literal_string \"ERC165: invalid interface id\"" - }, - "value": "ERC165: invalid interface id" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - { - "typeIdentifier": "t_stringliteral_282912c0dfceceb28d77d0333f496b83948f9ba5b3154358a8b140b849289dee", - "typeString": "literal_string \"ERC165: invalid interface id\"" - } - ], - "id": 371, - "name": "require", - "nodeType": "Identifier", - "overloadedDeclarations": [ - 1543, - 1544 - ], - "referencedDeclaration": 1544, - "src": "11608:7:1", - "typeDescriptions": { - "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", - "typeString": "function (bool,string memory) pure" - } - }, - "id": 376, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "11684:33:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "74727565", - "id": 381, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "bool", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11720:4:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "value": "true" - }, - "src": "11684:40:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "id": 383, - "nodeType": "ExpressionStatement", - "src": "11684:40:1" - } - ] - }, - "documentation": "@dev Registers the contract as an implementer of the interface defined by\n`interfaceId`. Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - }, - "returnParameters": { - "id": 370, - "nodeType": "ParameterList", - "parameters": [], - "src": "11598:0:1" - }, - "scope": 386, - "src": "11541:190:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "10321:1412:1" - }, - { - "id": 387, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "11793:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 388, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "11968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 389, - "nodeType": "InheritanceSpecifier", - "src": "11968:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 390, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "11976:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 391, - "nodeType": "InheritanceSpecifier", - "src": "11976:7:1" - } - ], - "contractDependencies": [ - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 944, - "linearizedBaseContracts": [ - 944, - 124, - 386, - 23 - ], - "name": "ERC721", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 394, - "libraryName": { - "contractScope": null, - "id": 392, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "11996:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "11990:27:1", - "typeName": { - "id": 393, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "12009:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - }, - { - "id": 397, - "libraryName": { - "contractScope": null, - "id": 395, - "name": "Address", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 289, - "src": "12028:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_Address_$289", - "typeString": "library Address" - } - }, - "nodeType": "UsingForDirective", - "src": "12022:26:1", - "typeName": { - "id": 396, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12040:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - } - }, - { - "id": 400, - "libraryName": { - "contractScope": null, - "id": 398, - "name": "Counters", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 336, - "src": "12059:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_Counters_$336", - 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"typeString": "msg" - } - }, - "id": 908, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sender", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "23630:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - { - "argumentTypes": null, - "id": 909, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 882, - "src": "23642:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 910, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 886, - "src": "23648:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - { - "argumentTypes": null, - "id": 911, - "name": "_data", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 888, - "src": "23657:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes memory" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - }, - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes memory" - } - ], - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 904, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 884, - "src": "23609:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - } - ], - "id": 903, - "name": "IERC721Receiver", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 139, - "src": "23593:15:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_contract$_IERC721Receiver_$139_$", - "typeString": "type(contract IERC721Receiver)" - } - }, - "id": 905, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23593:19:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721Receiver_$139", - "typeString": "contract IERC721Receiver" - } - }, - "id": 906, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "onERC721Received", - "nodeType": "MemberAccess", - "referencedDeclaration": 138, - "src": "23593:36:1", - "typeDescriptions": { - "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bytes4_$", - "typeString": "function (address,address,uint256,bytes memory) external returns (bytes4)" - } - }, - "id": 912, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23593:70:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "23577:86:1" - }, - { - "expression": { - "argumentTypes": null, - "components": [ - { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "id": 916, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 914, - "name": "retval", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 902, - "src": "23681:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "BinaryOperation", - "operator": "==", - "rightExpression": { - "argumentTypes": null, - "id": 915, - "name": "_ERC721_RECEIVED", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 403, - "src": "23691:16:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "src": "23681:26:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - } - ], - "id": 917, - "isConstant": false, - "isInlineArray": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "TupleExpression", - "src": "23680:28:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "functionReturnParameters": 892, - "id": 918, - "nodeType": "Return", - "src": "23673:35:1" - } - ] - }, - "documentation": "@dev Internal function to invoke `onERC721Received` on a target address.\nThe call is not executed if the target address is not a contract.\n * This function is deprecated.\n@param from address representing the previous owner of the given token ID\n@param to target address that will receive the tokens\n@param tokenId uint256 ID of the token to be transferred\n@param _data bytes optional data to send along with the call\n@return bool whether the call correctly returned the expected magic value", - "id": 920, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_checkOnERC721Received", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 889, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 882, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23400:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 881, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "23400:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 884, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23414:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 883, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "23414:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 886, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23426:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 885, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "23426:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 888, - "name": "_data", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23443:18:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 887, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "23443:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23399:63:1" - }, - "returnParameters": { - "id": 892, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 891, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23489:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 890, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "23489:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23488:6:1" - }, - "scope": 944, - "src": "23368:347:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 942, - "nodeType": "Block", - "src": "23926:122:1", - "statements": [ - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "id": 931, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 925, - "name": "_tokenApprovals", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 411, - "src": "23940:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - } - }, - "id": 927, - "indexExpression": { - "argumentTypes": null, - "id": 926, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 922, - "src": "23956:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "23940:24:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "30", - "id": 929, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "23976:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - } - ], - "id": 928, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "23968:7:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_address_$", - "typeString": "type(address)" - }, - "typeName": "address" - }, - "id": 930, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23968:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - "src": "23940:38:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 941, - "nodeType": "IfStatement", - "src": "23936:106:1", - "trueBody": { - "id": 940, - "nodeType": "Block", - "src": "23980:62:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 938, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 932, - "name": "_tokenApprovals", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 411, - "src": "23994:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - } - }, - "id": 934, - "indexExpression": { - "argumentTypes": null, - "id": 933, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 922, - "src": "24010:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "23994:24:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "30", - "id": 936, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "24029:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - } - ], - "id": 935, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "24021:7:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_address_$", - "typeString": "type(address)" - }, - "typeName": "address" - }, - "id": 937, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "24021:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - "src": "23994:37:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "id": 939, - "nodeType": "ExpressionStatement", - "src": "23994:37:1" - } - ] - } - } - ] - }, - "documentation": "@dev Private function to clear current approval of a given token ID.\n@param tokenId uint256 ID of the token to be transferred", - "id": 943, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_clearApproval", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 923, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 922, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 943, - "src": "23901:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 921, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "23901:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23900:17:1" - }, - "returnParameters": { - "id": 924, - "nodeType": "ParameterList", - "parameters": [], - "src": "23926:0:1" - }, - "scope": 944, - "src": "23877:171:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - } - ], - "scope": 1469, - "src": "11949:12101:1" - }, - { - "id": 945, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "24121:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 946, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "24314:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 947, - "nodeType": "InheritanceSpecifier", - "src": "24314:7:1" - } - ], - "contractDependencies": [ - 23, - 124 - ], - "contractKind": "contract", - "documentation": "@title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n@dev See https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": false, - "id": 969, - "linearizedBaseContracts": [ - 969, - 124, - 23 - ], - "name": "IERC721Enumerable", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": null, - "id": 952, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "totalSupply", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 948, - "nodeType": "ParameterList", - "parameters": [], - "src": "24348:2:1" - }, - "returnParameters": { - "id": 951, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 950, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 952, - "src": "24372:7:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 949, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24372:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24371:9:1" - }, - "scope": 969, - "src": "24328:53:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 961, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "tokenOfOwnerByIndex", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 957, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 954, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 961, - "src": "24415:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 953, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "24415:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 956, - "name": "index", - "nodeType": "VariableDeclaration", - "scope": 961, - "src": "24430:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 955, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24430:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24414:30:1" - }, - "returnParameters": { - "id": 960, - 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} - ], - "src": "29262:19:1" - }, - "scope": 1302, - "src": "29201:124:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 1175, - "nodeType": "Block", - "src": "29693:109:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 1166, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1159, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "29703:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1161, - "indexExpression": { - "argumentTypes": null, - "id": 1160, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1156, - "src": "29721:7:1", - 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"src": "29745:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "29732:16:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1165, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "29732:23:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "29703:52:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1167, - "nodeType": "ExpressionStatement", - "src": "29703:52:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1172, - "name": "tokenId", - 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"nodeType": "ExpressionStatement", - "src": "29765:30:1" - } - ] - }, - "documentation": "@dev Private function to add a token to this extension's ownership-tracking data structures.\n@param to address representing the new owner of the given token ID\n@param tokenId uint256 ID of the token to be added to the tokens list of the given address", - "id": 1176, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_addTokenToOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1157, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1154, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 1176, - "src": "29656:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1153, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "29656:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1156, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1176, - "src": "29668:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1155, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "29668:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "29655:29:1" - }, - "returnParameters": { - "id": 1158, - "nodeType": "ParameterList", - "parameters": [], - "src": "29693:0:1" - }, - "scope": 1302, - "src": "29619:183:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1194, - "nodeType": "Block", - "src": "30063:95:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 1186, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1181, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "30073:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1183, - "indexExpression": { - "argumentTypes": null, - "id": 1182, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1178, - "src": "30089:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "30073:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1184, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30100:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1185, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30100:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "30073:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1187, - "nodeType": "ExpressionStatement", - "src": "30073:44:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1191, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1178, - "src": "30143:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1188, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "30127:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1190, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "push", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "30127:15:1", - 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"name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1243, - "src": "31297:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1221, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31297:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1228, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1223, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31319:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1225, - "indexExpression": { - "argumentTypes": null, - "id": 1224, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31332:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1227, - "indexExpression": { - "argumentTypes": null, - "id": 1226, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31338:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:34:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "32485:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1259, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32463:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1260, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "32463:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1261, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1265, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32497:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1270, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1267, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "32518:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1269, - "indexExpression": { - "argumentTypes": null, - "id": 1268, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "32534:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - 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"devdoc": { - "details": "Interface for any contract that wants to support safeTransfers from ERC721 asset contracts.", - "methods": { - "onERC721Received(address,address,uint256,bytes)": { - "details": "The ERC721 smart contract calls this function on the recipient after a `safeTransfer`. This function MUST return the function selector, otherwise the caller will revert the transaction. The selector to be returned can be obtained as `this.onERC721Received.selector`. This function MAY throw to revert and reject the transfer. Note: the ERC721 contract address is always the message sender.", - "params": { - "data": "Additional data with no specified format", - "from": "The address which previously owned the token", - "operator": "The address which called `safeTransferFrom` function", - "tokenId": "The NFT identifier which is being transferred" - }, - "return": "bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`" - } - }, - "title": "ERC721 token receiver interface" - }, - "userdoc": { - "methods": { - "onERC721Received(address,address,uint256,bytes)": { - "notice": "Handle the receipt of an NFT" - } - } - } -} \ No newline at end of file diff --git a/src/abis/Migrations.json b/src/abis/Migrations.json deleted file mode 100644 index 0e43b3c..0000000 --- a/src/abis/Migrations.json +++ /dev/null @@ -1,1384 +0,0 @@ -{ - "contractName": "Migrations", - "abi": [ - { - "constant": true, - "inputs": [], - "name": "last_completed_migration", - "outputs": [ - { - "name": "", - "type": "uint256" - 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"source": "\n// File: @openzeppelin/contracts/introspection/IERC165.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * [EIP](https://eips.ethereum.org/EIPS/eip-165).\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others (`ERC165Checker`).\n *\n * For an implementation, see `ERC165`.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ncontract IERC721 is IERC165 {\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of NFTs in `owner`'s account.\n */\n function balanceOf(address owner) public view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the NFT specified by `tokenId`.\n */\n function ownerOf(uint256 tokenId) public view returns (address owner);\n\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * \n *\n * Requirements:\n * - `from`, `to` cannot be zero.\n * - `tokenId` must be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this\n * NFT by either `approve` or `setApproveForAll`.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public;\n /**\n * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\n * another (`to`).\n *\n * Requirements:\n * - If the caller is not `from`, it must be approved to move this NFT by\n * either `approve` or `setApproveForAll`.\n */\n function transferFrom(address from, address to, uint256 tokenId) public;\n function approve(address to, uint256 tokenId) public;\n function getApproved(uint256 tokenId) public view returns (address operator);\n\n function setApprovalForAll(address operator, bool _approved) public;\n function isApprovedForAll(address owner, address operator) public view returns (bool);\n\n\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public;\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ncontract IERC721Receiver {\n /**\n * @notice Handle the receipt of an NFT\n * @dev The ERC721 smart contract calls this function on the recipient\n * after a `safeTransfer`. This function MUST return the function selector,\n * otherwise the caller will revert the transaction. The selector to be\n * returned can be obtained as `this.onERC721Received.selector`. This\n * function MAY throw to revert and reject the transfer.\n * Note: the ERC721 contract address is always the message sender.\n * @param operator The address which called `safeTransferFrom` function\n * @param from The address which previously owned the token\n * @param tokenId The NFT identifier which is being transferred\n * @param data Additional data with no specified format\n * @return bytes4 `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n */\n function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data)\n public returns (bytes4);\n}\n\n// File: @openzeppelin/contracts/math/SafeMath.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\n * checks.\n *\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\n * in bugs, because programmers usually assume that an overflow raises an\n * error, which is the standard behavior in high level programming languages.\n * `SafeMath` restores this intuition by reverting the transaction when an\n * operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeMath {\n /**\n * @dev Returns the addition of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `+` operator.\n *\n * Requirements:\n * - Addition cannot overflow.\n */\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting on\n * overflow (when the result is negative).\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n * - Subtraction cannot overflow.\n */\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b <= a, \"SafeMath: subtraction overflow\");\n uint256 c = a - b;\n\n return c;\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `*` operator.\n *\n * Requirements:\n * - Multiplication cannot overflow.\n */\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers. Reverts on\n * division by zero. The result is rounded towards zero.\n *\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n * uses an invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n // Solidity only automatically asserts when dividing by 0\n require(b > 0, \"SafeMath: division by zero\");\n uint256 c = a / b;\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n return c;\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * Reverts when dividing by zero.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n * - The divisor cannot be zero.\n */\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b != 0, \"SafeMath: modulo by zero\");\n return a % b;\n }\n}\n\n// File: @openzeppelin/contracts/utils/Address.sol\n\npragma solidity ^0.5.0;\n\n/**\n * @dev Collection of functions related to the address type,\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * This test is non-exhaustive, and there may be false-negatives: during the\n * execution of a contract's constructor, its address will be reported as\n * not containing a contract.\n *\n * > It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies in extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n}\n\n// File: @openzeppelin/contracts/drafts/Counters.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title Counters\n * @author Matt Condon (@shrugs)\n * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number\n * of elements in a mapping, issuing ERC721 ids, or counting request ids.\n *\n * Include with `using Counters for Counters.Counter;`\n * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath\n * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never\n * directly accessed.\n */\nlibrary Counters {\n using SafeMath for uint256;\n\n struct Counter {\n // This variable should never be directly accessed by users of the library: interactions must be restricted to\n // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add\n // this feature: see https://github.com/ethereum/solidity/issues/4637\n uint256 _value; // default: 0\n }\n\n function current(Counter storage counter) internal view returns (uint256) {\n return counter._value;\n }\n\n function increment(Counter storage counter) internal {\n counter._value += 1;\n }\n\n function decrement(Counter storage counter) internal {\n counter._value = counter._value.sub(1);\n }\n}\n\n// File: @openzeppelin/contracts/introspection/ERC165.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @dev Implementation of the `IERC165` interface.\n *\n * Contracts may inherit from this and call `_registerInterface` to declare\n * their support of an interface.\n */\ncontract ERC165 is IERC165 {\n /*\n * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7\n */\n bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;\n\n /**\n * @dev Mapping of interface ids to whether or not it's supported.\n */\n mapping(bytes4 => bool) private _supportedInterfaces;\n\n constructor () internal {\n // Derived contracts need only register support for their own interfaces,\n // we register support for ERC165 itself here\n _registerInterface(_INTERFACE_ID_ERC165);\n }\n\n /**\n * @dev See `IERC165.supportsInterface`.\n *\n * Time complexity O(1), guaranteed to always use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool) {\n return _supportedInterfaces[interfaceId];\n }\n\n /**\n * @dev Registers the contract as an implementer of the interface defined by\n * `interfaceId`. Support of the actual ERC165 interface is automatic and\n * registering its interface id is not required.\n *\n * See `IERC165.supportsInterface`.\n *\n * Requirements:\n *\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).\n */\n function _registerInterface(bytes4 interfaceId) internal {\n require(interfaceId != 0xffffffff, \"ERC165: invalid interface id\");\n _supportedInterfaces[interfaceId] = true;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n\n\n\n/**\n * @title ERC721 Non-Fungible Token Standard basic implementation\n * @dev see https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721 is ERC165, IERC721 {\n using SafeMath for uint256;\n using Address for address;\n using Counters for Counters.Counter;\n\n // Equals to `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`\n // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`\n bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;\n\n // Mapping from token ID to owner\n mapping (uint256 => address) private _tokenOwner;\n\n // Mapping from token ID to approved address\n mapping (uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to number of owned token\n mapping (address => Counters.Counter) private _ownedTokensCount;\n\n // Mapping from owner to operator approvals\n mapping (address => mapping (address => bool)) private _operatorApprovals;\n\n /*\n * bytes4(keccak256('balanceOf(address)')) == 0x70a08231\n * bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e\n * bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3\n * bytes4(keccak256('getApproved(uint256)')) == 0x081812fc\n * bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465\n * bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c\n * bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd\n * bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e\n * bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde\n *\n * => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^\n * 0xa22cb465 ^ 0xe985e9c ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd\n */\n bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;\n\n constructor () public {\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721);\n }\n\n /**\n * @dev Gets the balance of the specified address.\n * @param owner address to query the balance of\n * @return uint256 representing the amount owned by the passed address\n */\n function balanceOf(address owner) public view returns (uint256) {\n require(owner != address(0), \"ERC721: balance query for the zero address\");\n\n return _ownedTokensCount[owner].current();\n }\n\n /**\n * @dev Gets the owner of the specified token ID.\n * @param tokenId uint256 ID of the token to query the owner of\n * @return address currently marked as the owner of the given token ID\n */\n function ownerOf(uint256 tokenId) public view returns (address) {\n address owner = _tokenOwner[tokenId];\n require(owner != address(0), \"ERC721: owner query for nonexistent token\");\n\n return owner;\n }\n\n /**\n * @dev Approves another address to transfer the given token ID\n * The zero address indicates there is no approved address.\n * There can only be one approved address per token at a given time.\n * Can only be called by the token owner or an approved operator.\n * @param to address to be approved for the given token ID\n * @param tokenId uint256 ID of the token to be approved\n */\n function approve(address to, uint256 tokenId) public {\n address owner = ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(msg.sender == owner || isApprovedForAll(owner, msg.sender),\n \"ERC721: approve caller is not owner nor approved for all\"\n );\n\n _tokenApprovals[tokenId] = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Gets the approved address for a token ID, or zero if no address set\n * Reverts if the token ID does not exist.\n * @param tokenId uint256 ID of the token to query the approval of\n * @return address currently approved for the given token ID\n */\n function getApproved(uint256 tokenId) public view returns (address) {\n require(_exists(tokenId), \"ERC721: approved query for nonexistent token\");\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev Sets or unsets the approval of a given operator\n * An operator is allowed to transfer all tokens of the sender on their behalf.\n * @param to operator address to set the approval\n * @param approved representing the status of the approval to be set\n */\n function setApprovalForAll(address to, bool approved) public {\n require(to != msg.sender, \"ERC721: approve to caller\");\n\n _operatorApprovals[msg.sender][to] = approved;\n emit ApprovalForAll(msg.sender, to, approved);\n }\n\n /**\n * @dev Tells whether an operator is approved by a given owner.\n * @param owner owner address which you want to query the approval of\n * @param operator operator address which you want to query the approval of\n * @return bool whether the given operator is approved by the given owner\n */\n function isApprovedForAll(address owner, address operator) public view returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev Transfers the ownership of a given token ID to another address.\n * Usage of this method is discouraged, use `safeTransferFrom` whenever possible.\n * Requires the msg.sender to be the owner, approved, or operator.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function transferFrom(address from, address to, uint256 tokenId) public {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(msg.sender, tokenId), \"ERC721: transfer caller is not owner nor approved\");\n\n _transferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) public {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * Requires the msg.sender to be the owner, approved, or operator\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes data to send along with a safe transfer check\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public {\n transferFrom(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, _data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns whether the specified token exists.\n * @param tokenId uint256 ID of the token to query the existence of\n * @return bool whether the token exists\n */\n function _exists(uint256 tokenId) internal view returns (bool) {\n address owner = _tokenOwner[tokenId];\n return owner != address(0);\n }\n\n /**\n * @dev Returns whether the given spender can transfer a given token ID.\n * @param spender address of the spender to query\n * @param tokenId uint256 ID of the token to be transferred\n * @return bool whether the msg.sender is approved for the given token ID,\n * is an operator of the owner, or is the owner of the token\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view returns (bool) {\n require(_exists(tokenId), \"ERC721: operator query for nonexistent token\");\n address owner = ownerOf(tokenId);\n return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to The address that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _tokenOwner[tokenId] = to;\n _ownedTokensCount[to].increment();\n\n emit Transfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n require(ownerOf(tokenId) == owner, \"ERC721: burn of token that is not own\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[owner].decrement();\n _tokenOwner[tokenId] = address(0);\n\n emit Transfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(uint256 tokenId) internal {\n _burn(ownerOf(tokenId), tokenId);\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n require(ownerOf(tokenId) == from, \"ERC721: transfer of token that is not own\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[from].decrement();\n _ownedTokensCount[to].increment();\n\n _tokenOwner[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n }\n\n /**\n * @dev Internal function to invoke `onERC721Received` on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * This function is deprecated.\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data)\n internal returns (bool)\n {\n if (!to.isContract()) {\n return true;\n }\n\n bytes4 retval = IERC721Receiver(to).onERC721Received(msg.sender, from, tokenId, _data);\n return (retval == _ERC721_RECEIVED);\n }\n\n /**\n * @dev Private function to clear current approval of a given token ID.\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _clearApproval(uint256 tokenId) private {\n if (_tokenApprovals[tokenId] != address(0)) {\n _tokenApprovals[tokenId] = address(0);\n }\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Enumerable is IERC721 {\n function totalSupply() public view returns (uint256);\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256 tokenId);\n\n function tokenByIndex(uint256 index) public view returns (uint256);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Enumerable.sol\n\npragma solidity ^0.5.0;\n\n\n\n\n/**\n * @title ERC-721 Non-Fungible Token with optional enumeration extension logic\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract ERC721Enumerable is ERC165, ERC721, IERC721Enumerable {\n // Mapping from owner to list of owned token IDs\n mapping(address => uint256[]) private _ownedTokens;\n\n // Mapping from token ID to index of the owner tokens list\n mapping(uint256 => uint256) private _ownedTokensIndex;\n\n // Array with all token ids, used for enumeration\n uint256[] private _allTokens;\n\n // Mapping from token id to position in the allTokens array\n mapping(uint256 => uint256) private _allTokensIndex;\n\n /*\n * bytes4(keccak256('totalSupply()')) == 0x18160ddd\n * bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59\n * bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7\n *\n * => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63\n */\n bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;\n\n /**\n * @dev Constructor function.\n */\n constructor () public {\n // register the supported interface to conform to ERC721Enumerable via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);\n }\n\n /**\n * @dev Gets the token ID at a given index of the tokens list of the requested owner.\n * @param owner address owning the tokens list to be accessed\n * @param index uint256 representing the index to be accessed of the requested tokens list\n * @return uint256 token ID at the given index of the tokens list owned by the requested address\n */\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) {\n require(index < balanceOf(owner), \"ERC721Enumerable: owner index out of bounds\");\n return _ownedTokens[owner][index];\n }\n\n /**\n * @dev Gets the total amount of tokens stored by the contract.\n * @return uint256 representing the total amount of tokens\n */\n function totalSupply() public view returns (uint256) {\n return _allTokens.length;\n }\n\n /**\n * @dev Gets the token ID at a given index of all the tokens in this contract\n * Reverts if the index is greater or equal to the total number of tokens.\n * @param index uint256 representing the index to be accessed of the tokens list\n * @return uint256 token ID at the given index of the tokens list\n */\n function tokenByIndex(uint256 index) public view returns (uint256) {\n require(index < totalSupply(), \"ERC721Enumerable: global index out of bounds\");\n return _allTokens[index];\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\n * @param from current owner of the token\n * @param to address to receive the ownership of the given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _transferFrom(address from, address to, uint256 tokenId) internal {\n super._transferFrom(from, to, tokenId);\n\n _removeTokenFromOwnerEnumeration(from, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n }\n\n /**\n * @dev Internal function to mint a new token.\n * Reverts if the given token ID already exists.\n * @param to address the beneficiary that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n super._mint(to, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n\n _addTokenToAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token.\n * Reverts if the token does not exist.\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n _removeTokenFromOwnerEnumeration(owner, tokenId);\n // Since tokenId will be deleted, we can clear its slot in _ownedTokensIndex to trigger a gas refund\n _ownedTokensIndex[tokenId] = 0;\n\n _removeTokenFromAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Gets the list of token IDs of the requested owner.\n * @param owner address owning the tokens\n * @return uint256[] List of token IDs owned by the requested address\n */\n function _tokensOfOwner(address owner) internal view returns (uint256[] storage) {\n return _ownedTokens[owner];\n }\n\n /**\n * @dev Private function to add a token to this extension's ownership-tracking data structures.\n * @param to address representing the new owner of the given token ID\n * @param tokenId uint256 ID of the token to be added to the tokens list of the given address\n */\n function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {\n _ownedTokensIndex[tokenId] = _ownedTokens[to].length;\n _ownedTokens[to].push(tokenId);\n }\n\n /**\n * @dev Private function to add a token to this extension's token tracking data structures.\n * @param tokenId uint256 ID of the token to be added to the tokens list\n */\n function _addTokenToAllTokensEnumeration(uint256 tokenId) private {\n _allTokensIndex[tokenId] = _allTokens.length;\n _allTokens.push(tokenId);\n }\n\n /**\n * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\n * while the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\n * gas optimizations e.g. when performing a transfer operation (avoiding double writes).\n * This has O(1) time complexity, but alters the order of the _ownedTokens array.\n * @param from address representing the previous owner of the given token ID\n * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address\n */\n function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {\n // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _ownedTokens[from].length.sub(1);\n uint256 tokenIndex = _ownedTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary\n if (tokenIndex != lastTokenIndex) {\n uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];\n\n _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n }\n\n // This also deletes the contents at the last position of the array\n _ownedTokens[from].length--;\n\n // Note that _ownedTokensIndex[tokenId] hasn't been cleared: it still points to the old slot (now occupied by\n // lastTokenId, or just over the end of the array if the token was the last one).\n }\n\n /**\n * @dev Private function to remove a token from this extension's token tracking data structures.\n * This has O(1) time complexity, but alters the order of the _allTokens array.\n * @param tokenId uint256 ID of the token to be removed from the tokens list\n */\n function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {\n // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _allTokens.length.sub(1);\n uint256 tokenIndex = _allTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so\n // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding\n // an 'if' statement (like in _removeTokenFromOwnerEnumeration)\n uint256 lastTokenId = _allTokens[lastTokenIndex];\n\n _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n\n // This also deletes the contents at the last position of the array\n _allTokens.length--;\n _allTokensIndex[tokenId] = 0;\n }\n}\n\n// File: @openzeppelin/contracts/token/ERC721/IERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ncontract IERC721Metadata is IERC721 {\n function name() external view returns (string memory);\n function symbol() external view returns (string memory);\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n\n// File: @openzeppelin/contracts/token/ERC721/ERC721Metadata.sol\n\npragma solidity ^0.5.0;\n\n\n\n\ncontract ERC721Metadata is ERC165, ERC721, IERC721Metadata {\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Optional mapping for token URIs\n mapping(uint256 => string) private _tokenURIs;\n\n /*\n * bytes4(keccak256('name()')) == 0x06fdde03\n * bytes4(keccak256('symbol()')) == 0x95d89b41\n * bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd\n *\n * => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f\n */\n bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;\n\n /**\n * @dev Constructor function\n */\n constructor (string memory name, string memory symbol) public {\n _name = name;\n _symbol = symbol;\n\n // register the supported interfaces to conform to ERC721 via ERC165\n _registerInterface(_INTERFACE_ID_ERC721_METADATA);\n }\n\n /**\n * @dev Gets the token name.\n * @return string representing the token name\n */\n function name() external view returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Gets the token symbol.\n * @return string representing the token symbol\n */\n function symbol() external view returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns an URI for a given token ID.\n * Throws if the token ID does not exist. 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"documentation": "@dev Returns the owner of the NFT specified by `tokenId`.", - "id": 64, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "ownerOf", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 60, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 59, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1531:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 58, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "1531:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1530:17:1" - }, - "returnParameters": { - "id": 63, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 62, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 64, - "src": "1569:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 61, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1569:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1568:15:1" - }, - "scope": 124, - "src": "1514:70:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * \n * Requirements:\n- `from`, `to` cannot be zero.\n- `tokenId` must be owned by `from`.\n- If the caller is not `from`, it must be have been allowed to move this\nNFT by either `approve` or `setApproveForAll`.", - "id": 73, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 71, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 66, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "1992:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 65, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "1992:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 68, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2006:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 67, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2006:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 70, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 73, - "src": "2018:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 69, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2018:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "1991:43:1" - }, - "returnParameters": { - "id": 72, - "nodeType": "ParameterList", - "parameters": [], - "src": "2041:0:1" - }, - "scope": 124, - "src": "1966:76:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": "@dev Transfers a specific NFT (`tokenId`) from one account (`from`) to\nanother (`to`).\n * Requirements:\n- If the caller is not `from`, it must be approved to move this NFT by\neither `approve` or `setApproveForAll`.", - "id": 82, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "transferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 80, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 75, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2339:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 74, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2339:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 77, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2353:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 76, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2353:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 79, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 82, - "src": "2365:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 78, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2365:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2338:43:1" - }, - "returnParameters": { - "id": 81, - "nodeType": "ParameterList", - "parameters": [], - "src": "2388:0:1" - }, - "scope": 124, - "src": "2317:72:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 89, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "approve", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 87, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 84, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2411:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 83, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2411:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 86, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 89, - "src": "2423:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 85, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2423:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2410:29:1" - }, - "returnParameters": { - "id": 88, - "nodeType": "ParameterList", - "parameters": [], - "src": "2446:0:1" - }, - "scope": 124, - "src": "2394:53:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 96, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "getApproved", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 92, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 91, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2473:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 90, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2473:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2472:17:1" - }, - "returnParameters": { - "id": 95, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 94, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 96, - "src": "2511:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 93, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2511:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2510:18:1" - }, - "scope": 124, - "src": "2452:77:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 103, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "setApprovalForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 101, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 98, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 103, - "src": "2562:16:1", - 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"nodeType": "ParameterList", - "parameters": [], - "src": "2602:0:1" - }, - "scope": 124, - "src": "2535:68:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 112, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "isApprovedForAll", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 108, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 105, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2634:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 104, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2634:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 107, - "name": "operator", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2649:16:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 106, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2649:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2633:33:1" - }, - "returnParameters": { - "id": 111, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 110, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 112, - "src": "2688:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 109, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "2688:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2687:6:1" - }, - "scope": 124, - "src": "2608:86:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 123, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "safeTransferFrom", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 121, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 114, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2727:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 113, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2727:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 116, - "name": "to", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2741:10:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 115, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "2741:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 118, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2753:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 117, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "2753:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 120, - "name": "data", - "nodeType": "VariableDeclaration", - "scope": 123, - "src": "2770:17:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 119, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "2770:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "2726:62:1" - }, - "returnParameters": { - "id": 122, - "nodeType": "ParameterList", - "parameters": [], - "src": "2795:0:1" - }, - "scope": 124, - "src": "2701:95:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "972:1826:1" - }, - { - "id": 125, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "2867:23:1" - }, - { - "baseContracts": [], - "contractDependencies": [], - "contractKind": "contract", - "documentation": "@title ERC721 token receiver interface\n@dev Interface for any contract that wants to support safeTransfers\nfrom ERC721 asset contracts.", - "fullyImplemented": false, - "id": 139, - "linearizedBaseContracts": [ - 139 - ], - "name": "IERC721Receiver", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": "@notice Handle the receipt of an NFT\n@dev The ERC721 smart contract calls this function on the recipient\nafter a `safeTransfer`. This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onERC721Received.selector`. 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This can easily result\nin bugs, because programmers usually assume that an overflow raises an\nerror, which is the standard behavior in high level programming languages.\n`SafeMath` restores this intuition by reverting the transaction when an\noperation overflows.\n * Using this library instead of the unchecked operations eliminates an entire\nclass of bugs, so it's recommended to use it always.", - "fullyImplemented": true, - "id": 271, - "linearizedBaseContracts": [ - 271 - ], - "name": "SafeMath", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": { - "id": 164, - "nodeType": "Block", - "src": "5013:109:1", - "statements": [ - { - "assignments": [ - 150 - ], - "declarations": [ - { - "constant": false, - "id": 150, - "name": "c", - "nodeType": "VariableDeclaration", - "scope": 164, - "src": "5023:9:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 149, - 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"src": "22761:8:1", - "typeDescriptions": { - "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,address,uint256)" - } - }, - "id": 877, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "22761:27:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 878, - "nodeType": "EmitStatement", - "src": "22756:32:1" - } - ] - }, - "documentation": "@dev Internal function to transfer ownership of a given token ID to another address.\nAs opposed to transferFrom, this imposes no restrictions on msg.sender.\n@param from current owner of the token\n@param to address to receive the ownership of the given token ID\n@param tokenId uint256 ID of the token to be transferred", - "id": 880, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_transferFrom", - 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"src": "28688:308:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1119, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28710:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1120, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28717:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1116, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28698:5:1", - 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"src": "28647:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1113, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1139, - "src": "28662:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1112, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "28662:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "28646:32:1" - }, - "returnParameters": { - "id": 1115, - "nodeType": "ParameterList", - "parameters": [], - "src": "28688:0:1" - }, - "scope": 1302, - "src": "28632:364:1", - "stateMutability": "nonpayable", - "superFunction": 811, - "visibility": "internal" - 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"typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "29224:15:1" - }, - "returnParameters": { - "id": 1146, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1145, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 1152, - "src": "29263:17:1", - "stateVariable": false, - "storageLocation": "storage", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - }, - "typeName": { - "baseType": { - "id": 1143, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "29263:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1144, - "length": null, - "nodeType": "ArrayTypeName", - "src": "29263:9:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - } - }, - "value": null, - "visibility": "internal" - 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"isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "32485:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1259, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32463:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1260, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "32463:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1261, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1265, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32497:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1270, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1267, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "32518:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1269, - "indexExpression": { - "argumentTypes": null, - "id": 1268, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "32534:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32518:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32497:45:1" - }, - { - "assignments": [ - 1272 - ], - "declarations": [ - { - "constant": false, - "id": 1272, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32864:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1271, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32864:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1276, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1273, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32886:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1275, - "indexExpression": { - "argumentTypes": null, - "id": 1274, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1258, - "src": "32897:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32886:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32864:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1281, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1277, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32923:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1279, - "indexExpression": { - "argumentTypes": null, - "id": 1278, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "32934:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "32923:22:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1280, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "32948:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "32923:36:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1282, - "nodeType": "ExpressionStatement", - "src": "32923:36:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1287, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1283, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33027:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1285, - "indexExpression": { - "argumentTypes": null, - "id": 1284, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "33043:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33027:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1286, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "33058:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "33027:41:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1288, - "nodeType": "ExpressionStatement", - "src": "33027:41:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1292, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "33189:19:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1289, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "33189:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1291, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "33189:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1293, - "nodeType": "ExpressionStatement", - "src": "33189:19:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1298, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1294, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33218:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1296, - "indexExpression": { - "argumentTypes": null, - "id": 1295, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "33234:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33218:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1297, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "33245:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "33218:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1299, - "nodeType": "ExpressionStatement", - "src": "33218:28:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's token tracking data structures.\nThis has O(1) time complexity, but alters the order of the _allTokens array.\n@param tokenId uint256 ID of the token to be removed from the tokens list", - "id": 1301, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromAllTokensEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1255, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1254, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1301, - "src": "32235:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1253, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32235:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "32234:17:1" - }, - "returnParameters": { - "id": 1256, - "nodeType": "ParameterList", - "parameters": [], - "src": "32260:0:1" - }, - "scope": 1302, - "src": "32189:1064:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - } - ], - "scope": 1469, - "src": "24794:8461:1" - }, - { - "id": 1303, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "33324:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1304, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "33512:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 1305, - "nodeType": "InheritanceSpecifier", - "src": "33512:7:1" - } - ], - "contractDependencies": [ - 23, - 124 - ], - "contractKind": "contract", - "documentation": "@title ERC-721 Non-Fungible Token Standard, optional metadata extension\n@dev See https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": false, - "id": 1323, - "linearizedBaseContracts": [ - 1323, - 124, - 23 - ], - "name": "IERC721Metadata", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": null, - "id": 1310, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "name", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1306, - "nodeType": "ParameterList", - "parameters": [], - "src": "33539:2:1" - }, - "returnParameters": { - "id": 1309, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1308, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 1310, - "src": "33565:13:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1307, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "33565:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "33564:15:1" - }, - "scope": 1323, - "src": "33526:54:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "external" - }, - { - "body": null, - "documentation": null, - "id": 1315, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "symbol", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1311, - "nodeType": "ParameterList", - "parameters": [], - "src": "33600:2:1" - }, - "returnParameters": { - "id": 1314, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1313, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 1315, - "src": "33626:13:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1312, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "33626:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - 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See the corresponding\n[EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\nto learn more about how these ids are created.\n * This function call must use less than 30 000 gas.", - "id": 22, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "supportsInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 18, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 17, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 22, - "src": "766:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 16, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "766:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "765:20:1" - }, - "returnParameters": { - 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This function uses a `revert`\nopcode (which leaves remaining gas untouched) while Solidity uses an\ninvalid opcode to revert (consuming all remaining gas).\n * Requirements:\n- The divisor cannot be zero.", - "id": 270, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "mod", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 254, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 251, - "name": "a", - "nodeType": "VariableDeclaration", - "scope": 270, - "src": "7502:9:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 250, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "7502:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 253, - "name": "b", - "nodeType": "VariableDeclaration", - 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This can be used e.g. to track the number\nof elements in a mapping, issuing ERC721 ids, or counting request ids.\n * Include with `using Counters for Counters.Counter;`\nSince it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath\noverflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never\ndirectly accessed.", - "fullyImplemented": true, - "id": 336, - "linearizedBaseContracts": [ - 336 - ], - "name": "Counters", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 293, - "libraryName": { - "contractScope": null, - "id": 291, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "9332:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "9326:27:1", - "typeName": { - "id": 292, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "9345:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - }, - { - "canonicalName": "Counters.Counter", - "id": 296, - "members": [ - { - "constant": false, - "id": 295, - "name": "_value", - "nodeType": "VariableDeclaration", - "scope": 296, - 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"src": "10817:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 352, - "nodeType": "ExpressionStatement", - "src": "10817:40:1" - } - ] - }, - "documentation": null, - "id": 354, - "implemented": true, - "kind": "constructor", - "modifiers": [], - "name": "", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 347, - "nodeType": "ParameterList", - "parameters": [], - "src": "10659:2:1" - }, - "returnParameters": { - "id": 348, - "nodeType": "ParameterList", - "parameters": [], - "src": "10671:0:1" - }, - "scope": 386, - "src": "10647:217:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 365, - "nodeType": "Block", - "src": "11090:57:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 361, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11107:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 363, - "indexExpression": { - "argumentTypes": null, - "id": 362, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 356, - "src": "11128:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "11107:33:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "functionReturnParameters": 360, - "id": 364, - "nodeType": "Return", - "src": "11100:40:1" - } - ] - }, - "documentation": "@dev See `IERC165.supportsInterface`.\n * Time complexity O(1), guaranteed to always use less than 30 000 gas.", - "id": 366, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "supportsInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 357, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 356, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 366, - "src": "11041:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 355, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11041:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11040:20:1" - }, - "returnParameters": { - "id": 360, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 359, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 366, - "src": "11084:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 358, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "11084:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11083:6:1" - }, - "scope": 386, - "src": "11014:133:1", - "stateMutability": "view", - "superFunction": 22, - "visibility": "external" - }, - { - "body": { - "id": 384, - "nodeType": "Block", - "src": "11598:133:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "id": 374, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "id": 372, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11616:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "hexValue": "30786666666666666666", - "id": 373, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11631:10:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_4294967295_by_1", - "typeString": "int_const 4294967295" - }, - "value": "0xffffffff" - }, - "src": "11616:25:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - { - "argumentTypes": null, - "hexValue": "4552433136353a20696e76616c696420696e74657266616365206964", - "id": 375, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "string", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11643:30:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_stringliteral_282912c0dfceceb28d77d0333f496b83948f9ba5b3154358a8b140b849289dee", - "typeString": "literal_string \"ERC165: invalid interface id\"" - }, - "value": "ERC165: invalid interface id" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - { - "typeIdentifier": "t_stringliteral_282912c0dfceceb28d77d0333f496b83948f9ba5b3154358a8b140b849289dee", - "typeString": "literal_string \"ERC165: invalid interface id\"" - } - ], - "id": 371, - "name": "require", - "nodeType": "Identifier", - "overloadedDeclarations": [ - 1543, - 1544 - ], - "referencedDeclaration": 1544, - "src": "11608:7:1", - "typeDescriptions": { - "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", - "typeString": "function (bool,string memory) pure" - } - }, - "id": 376, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "11608:66:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 377, - "nodeType": "ExpressionStatement", - "src": "11608:66:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 382, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 378, - "name": "_supportedInterfaces", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 346, - "src": "11684:20:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_bytes4_$_t_bool_$", - "typeString": "mapping(bytes4 => bool)" - } - }, - "id": 380, - "indexExpression": { - "argumentTypes": null, - "id": 379, - "name": "interfaceId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 368, - "src": "11705:11:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "11684:33:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "74727565", - "id": 381, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "bool", - "lValueRequested": false, - "nodeType": "Literal", - "src": "11720:4:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "value": "true" - }, - "src": "11684:40:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "id": 383, - "nodeType": "ExpressionStatement", - "src": "11684:40:1" - } - ] - }, - "documentation": "@dev Registers the contract as an implementer of the interface defined by\n`interfaceId`. Support of the actual ERC165 interface is automatic and\nregistering its interface id is not required.\n * See `IERC165.supportsInterface`.\n * Requirements:\n * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).", - "id": 385, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_registerInterface", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 369, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 368, - "name": "interfaceId", - "nodeType": "VariableDeclaration", - "scope": 385, - "src": "11569:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 367, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "11569:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "11568:20:1" - }, - "returnParameters": { - "id": 370, - "nodeType": "ParameterList", - "parameters": [], - "src": "11598:0:1" - }, - "scope": 386, - "src": "11541:190:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - } - ], - "scope": 1469, - "src": "10321:1412:1" - }, - { - "id": 387, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "11793:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 388, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "11968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 389, - "nodeType": "InheritanceSpecifier", - "src": "11968:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 390, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "11976:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 391, - "nodeType": "InheritanceSpecifier", - "src": "11976:7:1" - } - ], - "contractDependencies": [ - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 944, - "linearizedBaseContracts": [ - 944, - 124, - 386, - 23 - ], - "name": "ERC721", - "nodeType": "ContractDefinition", - "nodes": [ - { - "id": 394, - "libraryName": { - "contractScope": null, - "id": 392, - "name": "SafeMath", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 271, - "src": "11996:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_SafeMath_$271", - "typeString": "library SafeMath" - } - }, - "nodeType": "UsingForDirective", - "src": "11990:27:1", - "typeName": { - "id": 393, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "12009:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - }, - { - "id": 397, - "libraryName": { - "contractScope": null, - "id": 395, - "name": "Address", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 289, - "src": "12028:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_Address_$289", - "typeString": "library Address" - } - }, - "nodeType": "UsingForDirective", - "src": "12022:26:1", - "typeName": { - "id": 396, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12040:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - } - }, - { - "id": 400, - "libraryName": { - "contractScope": null, - "id": 398, - "name": "Counters", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 336, - "src": "12059:8:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_Counters_$336", - "typeString": "library Counters" - } - }, - "nodeType": "UsingForDirective", - "src": "12053:36:1", - "typeName": { - "contractScope": null, - "id": 399, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12072:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - { - "constant": true, - "id": 403, - "name": "_ERC721_RECEIVED", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12267:53:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 401, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "12267:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783135306237613032", - "id": 402, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "12310:10:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_353073666_by_1", - "typeString": "int_const 353073666" - }, - "value": "0x150b7a02" - }, - "visibility": "private" - }, - { - "constant": false, - "id": 407, - "name": "_tokenOwner", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12365:48:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - }, - "typeName": { - "id": 406, - "keyType": { - "id": 404, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "12374:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Mapping", - "src": "12365:28:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - }, - "valueType": { - "id": 405, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12385:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 411, - "name": "_tokenApprovals", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12469:52:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - }, - "typeName": { - "id": 410, - "keyType": { - "id": 408, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "12478:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Mapping", - "src": "12469:28:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - }, - "valueType": { - "id": 409, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12489:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 415, - "name": "_ownedTokensCount", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12579:63:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_struct$_Counter_$296_storage_$", - "typeString": "mapping(address => struct Counters.Counter)" - }, - "typeName": { - "id": 414, - "keyType": { - "id": 412, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12588:7:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Mapping", - "src": "12579:37:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_struct$_Counter_$296_storage_$", - "typeString": "mapping(address => struct Counters.Counter)" - }, - "valueType": { - "contractScope": null, - "id": 413, - "name": "Counters.Counter", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 296, - "src": "12599:16:1", - "typeDescriptions": { - "typeIdentifier": "t_struct$_Counter_$296_storage_ptr", - "typeString": "struct Counters.Counter" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 421, - "name": "_operatorApprovals", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "12697:73:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", - "typeString": "mapping(address => mapping(address => bool))" - }, - "typeName": { - "id": 420, - "keyType": { - "id": 416, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12706:7:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Mapping", - "src": "12697:46:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", - "typeString": "mapping(address => mapping(address => bool))" - }, - "valueType": { - "id": 419, - "keyType": { - "id": 417, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "12726:7:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Mapping", - "src": "12717:25:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", - "typeString": "mapping(address => bool)" - }, - "valueType": { - "id": 418, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "12737:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": true, - "id": 424, - "name": "_INTERFACE_ID_ERC721", - "nodeType": "VariableDeclaration", - "scope": 944, - "src": "13644:57:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - }, - "typeName": { - "id": 422, - "name": "bytes4", - "nodeType": "ElementaryTypeName", - "src": "13644:6:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes4", - "typeString": "bytes4" - } - }, - "value": { - "argumentTypes": null, - "hexValue": "30783830616335386364", - "id": 423, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "13691:10:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_2158778573_by_1", - "typeString": "int_const 2158778573" - }, - "value": "0x80ac58cd" - }, - "visibility": "private" - }, - { - "body": { - "id": 431, - "nodeType": "Block", - "src": "13730:134:1", - "statements": [ - { - 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"typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 883, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "23414:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 886, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23426:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 885, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "23426:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 888, - "name": "_data", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23443:18:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_bytes_memory_ptr", - "typeString": "bytes" - }, - "typeName": { - "id": 887, - "name": "bytes", - "nodeType": "ElementaryTypeName", - "src": "23443:5:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23399:63:1" - }, - "returnParameters": { - "id": 892, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 891, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 920, - "src": "23489:4:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - "typeName": { - "id": 890, - "name": "bool", - "nodeType": "ElementaryTypeName", - "src": "23489:4:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23488:6:1" - }, - "scope": 944, - "src": "23368:347:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "internal" - }, - { - "body": { - "id": 942, - "nodeType": "Block", - "src": "23926:122:1", - "statements": [ - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "id": 931, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 925, - "name": "_tokenApprovals", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 411, - "src": "23940:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - } - }, - "id": 927, - "indexExpression": { - "argumentTypes": null, - "id": 926, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 922, - "src": "23956:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "23940:24:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "30", - "id": 929, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "23976:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - } - ], - "id": 928, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "23968:7:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_address_$", - "typeString": "type(address)" - }, - "typeName": "address" - }, - "id": 930, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "23968:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - "src": "23940:38:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 941, - "nodeType": "IfStatement", - "src": "23936:106:1", - "trueBody": { - "id": 940, - "nodeType": "Block", - "src": "23980:62:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 938, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 932, - "name": "_tokenApprovals", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 411, - "src": "23994:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", - "typeString": "mapping(uint256 => address)" - } - }, - "id": 934, - "indexExpression": { - "argumentTypes": null, - "id": 933, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 922, - "src": "24010:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "23994:24:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "30", - "id": 936, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "24029:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - } - ], - "id": 935, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "24021:7:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_address_$", - "typeString": "type(address)" - }, - "typeName": "address" - }, - "id": 937, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "24021:10:1", - "typeDescriptions": { - "typeIdentifier": "t_address_payable", - "typeString": "address payable" - } - }, - "src": "23994:37:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "id": 939, - "nodeType": "ExpressionStatement", - "src": "23994:37:1" - } - ] - } - } - ] - }, - "documentation": "@dev Private function to clear current approval of a given token ID.\n@param tokenId uint256 ID of the token to be transferred", - "id": 943, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_clearApproval", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 923, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 922, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 943, - "src": "23901:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 921, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "23901:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "23900:17:1" - }, - "returnParameters": { - "id": 924, - "nodeType": "ParameterList", - "parameters": [], - "src": "23926:0:1" - }, - "scope": 944, - "src": "23877:171:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - } - ], - "scope": 1469, - "src": "11949:12101:1" - }, - { - "id": 945, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "24121:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 946, - "name": "IERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 124, - "src": "24314:7:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721_$124", - "typeString": "contract IERC721" - } - }, - "id": 947, - "nodeType": "InheritanceSpecifier", - "src": "24314:7:1" - } - ], - "contractDependencies": [ - 23, - 124 - ], - "contractKind": "contract", - "documentation": "@title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n@dev See https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": false, - "id": 969, - "linearizedBaseContracts": [ - 969, - 124, - 23 - ], - "name": "IERC721Enumerable", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": null, - "documentation": null, - "id": 952, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "totalSupply", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 948, - "nodeType": "ParameterList", - "parameters": [], - "src": "24348:2:1" - }, - "returnParameters": { - "id": 951, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 950, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 952, - "src": "24372:7:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 949, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24372:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24371:9:1" - }, - "scope": 969, - "src": "24328:53:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 961, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "tokenOfOwnerByIndex", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 957, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 954, - "name": "owner", - "nodeType": "VariableDeclaration", - "scope": 961, - "src": "24415:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 953, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "24415:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 956, - "name": "index", - "nodeType": "VariableDeclaration", - "scope": 961, - "src": "24430:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 955, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24430:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24414:30:1" - }, - "returnParameters": { - "id": 960, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 959, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 961, - "src": "24466:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 958, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24466:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24465:17:1" - }, - "scope": 969, - "src": "24386:97:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - }, - { - "body": null, - "documentation": null, - "id": 968, - "implemented": false, - "kind": "function", - "modifiers": [], - "name": "tokenByIndex", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 964, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 963, - "name": "index", - "nodeType": "VariableDeclaration", - "scope": 968, - "src": "24511:13:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 962, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24511:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24510:15:1" - }, - "returnParameters": { - "id": 967, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 966, - "name": "", - "nodeType": "VariableDeclaration", - "scope": 968, - "src": "24547:7:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 965, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24547:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "24546:9:1" - }, - "scope": 969, - "src": "24489:67:1", - "stateMutability": "view", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "24284:274:1" - }, - { - "id": 970, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "24628:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 971, - "name": "ERC165", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 386, - "src": "24823:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC165_$386", - "typeString": "contract ERC165" - } - }, - "id": 972, - "nodeType": "InheritanceSpecifier", - "src": "24823:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 973, - "name": "ERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 944, - "src": "24831:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721_$944", - "typeString": "contract ERC721" - } - }, - "id": 974, - "nodeType": "InheritanceSpecifier", - "src": "24831:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 975, - "name": "IERC721Enumerable", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 969, - "src": "24839:17:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_IERC721Enumerable_$969", - "typeString": "contract IERC721Enumerable" - } - }, - "id": 976, - "nodeType": "InheritanceSpecifier", - "src": "24839:17:1" - } - ], - "contractDependencies": [ - 944, - 969, - 23, - 124, - 386 - ], - "contractKind": "contract", - "documentation": "@title ERC-721 Non-Fungible Token with optional enumeration extension logic\n@dev See https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 1302, - "linearizedBaseContracts": [ - 1302, - 969, - 944, - 124, - 386, - 23 - ], - "name": "ERC721Enumerable", - "nodeType": "ContractDefinition", - "nodes": [ - { - "constant": false, - "id": 981, - "name": "_ownedTokens", - "nodeType": "VariableDeclaration", - "scope": 1302, - "src": "24916:50:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[])" - }, - "typeName": { - "id": 980, - "keyType": { - "id": 977, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "24924:7:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "nodeType": "Mapping", - "src": "24916:29:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[])" - }, - "valueType": { - "baseType": { - "id": 978, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "24935:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 979, - "length": null, - "nodeType": "ArrayTypeName", - "src": "24935:9:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", - "typeString": "uint256[]" - } - } - }, - "value": null, - "visibility": "private" - }, - { - "constant": false, - "id": 985, - "name": "_ownedTokensIndex", - "nodeType": "VariableDeclaration", - "scope": 1302, - "src": "25036:53:1", - "stateVariable": true, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - }, - "typeName": { - "id": 984, - "keyType": { - "id": 982, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "25044:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Mapping", - "src": "25036:27:1", - "typeDescriptions": { - 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"typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1062, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "27714:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "27687:43:1" - }, - "returnParameters": { - "id": 1065, - "nodeType": "ParameterList", - "parameters": [], - "src": "27740:0:1" - }, - "scope": 1302, - "src": "27665:239:1", - "stateMutability": "nonpayable", - "superFunction": 880, - "visibility": "internal" - }, - { - "body": { - "id": 1108, - "nodeType": "Block", - "src": "28214:143:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1095, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28236:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - 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"typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1097, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28224:24:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1098, - "nodeType": "ExpressionStatement", - "src": "28224:24:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1100, - "name": "to", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1087, - "src": "28287:2:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1101, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28291:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1099, - "name": "_addTokenToOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1176, - "src": "28259:27:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1102, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28259:40:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1103, - "nodeType": "ExpressionStatement", - "src": "28259:40:1" - }, - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1105, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1089, - "src": "28342:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1104, - "name": "_addTokenToAllTokensEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1195, - "src": "28310:31:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", - "typeString": "function (uint256)" - } - }, - "id": 1106, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28310:40:1", - "typeDescriptions": { - 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"src": "28688:308:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1119, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28710:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1120, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28717:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1116, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1572, - "src": "28698:5:1", - 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"nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1111, - "src": "28769:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1125, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28776:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "id": 1123, - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1252, - "src": "28736:32:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1126, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "28736:48:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1127, - "nodeType": "ExpressionStatement", - "src": "28736:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1132, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1128, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "28903:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1130, - "indexExpression": { - "argumentTypes": null, - "id": 1129, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1113, - "src": "28921:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "28903:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1131, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "28932:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "28903:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1133, - 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"name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1243, - "src": "31297:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1221, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "31297:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1228, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1223, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31319:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1225, - "indexExpression": { - "argumentTypes": null, - "id": 1224, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31332:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1227, - "indexExpression": { - "argumentTypes": null, - "id": 1226, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1203, - "src": "31338:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31319:34:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "31297:56:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1235, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1229, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31368:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1232, - "indexExpression": { - "argumentTypes": null, - "id": 1230, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31381:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31368:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1233, - "indexExpression": { - "argumentTypes": null, - "id": 1231, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31387:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31368:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1234, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31401:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31368:44:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1236, - "nodeType": "ExpressionStatement", - "src": "31368:44:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1241, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1237, - "name": "_ownedTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 985, - "src": "31484:17:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1239, - "indexExpression": { - "argumentTypes": null, - "id": 1238, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1222, - "src": "31502:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "31484:30:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1240, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1213, - "src": "31517:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "31484:43:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1242, - "nodeType": "ExpressionStatement", - "src": "31484:43:1" - } - ] - } - }, - { - "expression": { - "argumentTypes": null, - "id": 1249, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "31658:27:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1245, - "name": "_ownedTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 981, - "src": "31658:12:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", - "typeString": "mapping(address => uint256[] storage ref)" - } - }, - "id": 1247, - "indexExpression": { - "argumentTypes": null, - "id": 1246, - "name": "from", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1197, - "src": "31671:4:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "31658:18:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1248, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "31658:25:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1250, - "nodeType": "ExpressionStatement", - "src": "31658:27:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\n@param from address representing the previous owner of the given token ID\n@param tokenId uint256 ID of the token to be removed from the tokens list of the given address", - "id": 1252, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_removeTokenFromOwnerEnumeration", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1200, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1197, - "name": "from", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30815:12:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - }, - "typeName": { - "id": 1196, - "name": "address", - "nodeType": "ElementaryTypeName", - "src": "30815:7:1", - "stateMutability": "nonpayable", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1199, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1252, - "src": "30829:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1198, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "30829:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "30814:31:1" - }, - "returnParameters": { - "id": 1201, - "nodeType": "ParameterList", - "parameters": [], - "src": "30854:0:1" - }, - "scope": 1302, - "src": "30773:1128:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "private" - }, - { - "body": { - "id": 1300, - "nodeType": "Block", - "src": "32260:993:1", - "statements": [ - { - "assignments": [ - 1258 - ], - "declarations": [ - { - "constant": false, - "id": 1258, - "name": "lastTokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32438:22:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1257, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32438:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1264, - "initialValue": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "hexValue": "31", - "id": 1262, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "32485:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - }, - "value": "1" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_rational_1_by_1", - "typeString": "int_const 1" - } - ], - "expression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1259, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32463:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1260, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "32463:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1261, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "sub", - "nodeType": "MemberAccess", - "referencedDeclaration": 190, - "src": "32463:21:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", - "typeString": "function (uint256,uint256) pure returns (uint256)" - } - }, - "id": 1263, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "32463:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32438:49:1" - }, - { - "assignments": [ - 1266 - ], - "declarations": [ - { - "constant": false, - "id": 1266, - "name": "tokenIndex", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32497:18:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1265, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32497:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1270, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1267, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "32518:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1269, - "indexExpression": { - "argumentTypes": null, - "id": 1268, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "32534:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32518:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32497:45:1" - }, - { - "assignments": [ - 1272 - ], - "declarations": [ - { - "constant": false, - "id": 1272, - "name": "lastTokenId", - "nodeType": "VariableDeclaration", - "scope": 1300, - "src": "32864:19:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1271, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "32864:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "id": 1276, - "initialValue": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1273, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32886:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1275, - "indexExpression": { - "argumentTypes": null, - "id": 1274, - "name": "lastTokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1258, - "src": "32897:14:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "32886:26:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "VariableDeclarationStatement", - "src": "32864:48:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1281, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1277, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "32923:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1279, - "indexExpression": { - "argumentTypes": null, - "id": 1278, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "32934:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "32923:22:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1280, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "32948:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "32923:36:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1282, - "nodeType": "ExpressionStatement", - "src": "32923:36:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1287, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1283, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33027:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1285, - "indexExpression": { - "argumentTypes": null, - "id": 1284, - "name": "lastTokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1272, - "src": "33043:11:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33027:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "id": 1286, - "name": "tokenIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1266, - "src": "33058:10:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "src": "33027:41:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1288, - "nodeType": "ExpressionStatement", - "src": "33027:41:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1292, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - "operator": "--", - "prefix": false, - "src": "33189:19:1", - "subExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "id": 1289, - "name": "_allTokens", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 988, - "src": "33189:10:1", - "typeDescriptions": { - "typeIdentifier": "t_array$_t_uint256_$dyn_storage", - "typeString": "uint256[] storage ref" - } - }, - "id": 1291, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "33189:17:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1293, - "nodeType": "ExpressionStatement", - "src": "33189:19:1" - }, - { - "expression": { - "argumentTypes": null, - "id": 1298, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftHandSide": { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1294, - "name": "_allTokensIndex", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 992, - "src": "33218:15:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", - "typeString": "mapping(uint256 => uint256)" - } - }, - "id": 1296, - "indexExpression": { - "argumentTypes": null, - "id": 1295, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1254, - "src": "33234:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": true, - "nodeType": "IndexAccess", - "src": "33218:24:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "Assignment", - "operator": "=", - "rightHandSide": { - "argumentTypes": null, - "hexValue": "30", - "id": 1297, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "33245:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "33218:28:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "id": 1299, - "nodeType": "ExpressionStatement", - "src": "33218:28:1" - } - ] - }, - "documentation": "@dev Private function to remove a token from this extension's token tracking data structures.\nThis has O(1) time complexity, but alters the order of the _allTokens array.\n@param tokenId uint256 ID of the token to be removed from the tokens list", - 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May return an empty string.\n@param tokenId uint256 ID of the token to query", - "id": 1396, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "tokenURI", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1380, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1379, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1396, - "src": "35304:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1378, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "35304:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "35303:17:1" - }, - "returnParameters": { - "id": 1383, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1382, - "name": "", - 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"isLValue": false, - "isPure": true, - "kind": "string", - "lValueRequested": false, - "nodeType": "Literal", - "src": "35830:46:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_stringliteral_94be4a260caaeac1b145f03ffa2e70bc612b64982d04f24073aaf3a5f9009978", - "typeString": "literal_string \"ERC721Metadata: URI set of nonexistent token\"" - }, - "value": "ERC721Metadata: URI set of nonexistent token" - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_bool", - "typeString": "bool" - }, - { - "typeIdentifier": "t_stringliteral_94be4a260caaeac1b145f03ffa2e70bc612b64982d04f24073aaf3a5f9009978", - "typeString": "literal_string \"ERC721Metadata: URI set of nonexistent token\"" - } - ], - "id": 1403, - "name": "require", - "nodeType": "Identifier", - "overloadedDeclarations": [ - 1543, - 1544 - ], - "referencedDeclaration": 1544, - "src": "35804:7:1", - "typeDescriptions": { - "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", - 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} - }, - "id": 1415, - "nodeType": "ExpressionStatement", - "src": "35887:25:1" - } - ] - }, - "documentation": "@dev Internal function to set the token URI for a given token.\nReverts if the token ID does not exist.\n@param tokenId uint256 ID of the token to set its URI\n@param uri string URI to assign", - "id": 1417, - "implemented": true, - "kind": "function", - "modifiers": [], - "name": "_setTokenURI", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1401, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1398, - "name": "tokenId", - "nodeType": "VariableDeclaration", - "scope": 1417, - "src": "35749:15:1", - "stateVariable": false, - "storageLocation": "default", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "typeName": { - "id": 1397, - "name": "uint256", - "nodeType": "ElementaryTypeName", - "src": "35749:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - 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"argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "id": 1427, - "name": "owner", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1419, - "src": "36290:5:1", - "typeDescriptions": { - "typeIdentifier": "t_address", - "typeString": "address" - } - }, - { - "argumentTypes": null, - "id": 1428, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1421, - "src": "36297:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_address", - "typeString": "address" - }, - { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - ], - "expression": { - "argumentTypes": null, - "id": 1424, - "name": "super", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1576, - "src": "36278:5:1", - "typeDescriptions": { - "typeIdentifier": "t_super$_ERC721Metadata_$1448", - "typeString": "contract super ERC721Metadata" - } - }, - "id": 1426, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "memberName": "_burn", - "nodeType": "MemberAccess", - "referencedDeclaration": 811, - "src": "36278:11:1", - "typeDescriptions": { - "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", - "typeString": "function (address,uint256)" - } - }, - "id": 1429, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "functionCall", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "36278:27:1", - "typeDescriptions": { - "typeIdentifier": "t_tuple$__$", - "typeString": "tuple()" - } - }, - "id": 1430, - "nodeType": "ExpressionStatement", - "src": "36278:27:1" - }, - { - "condition": { - "argumentTypes": null, - "commonType": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - }, - "id": 1438, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "leftExpression": { - "argumentTypes": null, - "expression": { - "argumentTypes": null, - "arguments": [ - { - "argumentTypes": null, - "baseExpression": { - "argumentTypes": null, - "id": 1432, - "name": "_tokenURIs", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1338, - "src": "36361:10:1", - "typeDescriptions": { - "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", - "typeString": "mapping(uint256 => string storage ref)" - } - }, - "id": 1434, - "indexExpression": { - "argumentTypes": null, - "id": 1433, - "name": "tokenId", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1421, - "src": "36372:7:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "nodeType": "IndexAccess", - "src": "36361:19:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage", - "typeString": "string storage ref" - } - } - ], - "expression": { - "argumentTypes": [ - { - "typeIdentifier": "t_string_storage", - "typeString": "string storage ref" - } - ], - "id": 1431, - "isConstant": false, - "isLValue": false, - "isPure": true, - "lValueRequested": false, - "nodeType": "ElementaryTypeNameExpression", - "src": "36355:5:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_bytes_storage_ptr_$", - "typeString": "type(bytes storage pointer)" - }, - "typeName": "bytes" - }, - "id": 1435, - "isConstant": false, - "isLValue": false, - "isPure": false, - "kind": "typeConversion", - "lValueRequested": false, - "names": [], - "nodeType": "FunctionCall", - "src": "36355:26:1", - "typeDescriptions": { - "typeIdentifier": "t_bytes_storage_ptr", - "typeString": "bytes storage pointer" - } - }, - "id": 1436, - "isConstant": false, - "isLValue": true, - "isPure": false, - "lValueRequested": false, - "memberName": "length", - "nodeType": "MemberAccess", - "referencedDeclaration": null, - "src": "36355:33:1", - "typeDescriptions": { - "typeIdentifier": "t_uint256", - "typeString": "uint256" - } - }, - "nodeType": "BinaryOperation", - "operator": "!=", - "rightExpression": { - "argumentTypes": null, - "hexValue": "30", - "id": 1437, - "isConstant": false, - "isLValue": false, - "isPure": true, - "kind": "number", - "lValueRequested": false, - "nodeType": "Literal", - "src": "36392:1:1", - "subdenomination": null, - "typeDescriptions": { - "typeIdentifier": "t_rational_0_by_1", - "typeString": "int_const 0" - }, - "value": "0" - }, - "src": "36355:38:1", - "typeDescriptions": { - "typeIdentifier": "t_bool", - "typeString": "bool" - } - }, - "falseBody": null, - "id": 1445, - "nodeType": "IfStatement", - "src": "36351:95:1", - "trueBody": { - "id": 1444, - "nodeType": "Block", - "src": "36395:51:1", - "statements": [ - { - "expression": { - "argumentTypes": null, - "id": 1442, - "isConstant": false, - "isLValue": false, - "isPure": false, - "lValueRequested": false, - "nodeType": "UnaryOperation", - 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"visibility": "internal" - } - ], - "scope": 1469, - "src": "33817:2637:1" - }, - { - "id": 1449, - "literals": [ - "solidity", - "^", - "0.5", - ".0" - ], - "nodeType": "PragmaDirective", - "src": "36518:23:1" - }, - { - "baseContracts": [ - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1450, - "name": "ERC721", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 944, - "src": "36838:6:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721_$944", - "typeString": "contract ERC721" - } - }, - "id": 1451, - "nodeType": "InheritanceSpecifier", - "src": "36838:6:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1452, - "name": "ERC721Enumerable", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 1302, - "src": "36846:16:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721Enumerable_$1302", - "typeString": "contract ERC721Enumerable" - } - }, - "id": 1453, - "nodeType": "InheritanceSpecifier", - "src": "36846:16:1" - }, - { - "arguments": null, - "baseName": { - "contractScope": null, - "id": 1454, - "name": "ERC721Metadata", - "nodeType": "UserDefinedTypeName", - "referencedDeclaration": 1448, - "src": "36864:14:1", - "typeDescriptions": { - "typeIdentifier": "t_contract$_ERC721Metadata_$1448", - "typeString": "contract ERC721Metadata" - } - }, - "id": 1455, - "nodeType": "InheritanceSpecifier", - "src": "36864:14:1" - } - ], - "contractDependencies": [ - 944, - 969, - 23, - 124, - 386, - 1302, - 1323, - 1448 - ], - "contractKind": "contract", - "documentation": "@title Full ERC721 Token\nThis implementation includes all the required and some optional functionality of the ERC721 standard\nMoreover, it includes approve all functionality using operator terminology\n@dev see https://eips.ethereum.org/EIPS/eip-721", - "fullyImplemented": true, - "id": 1468, - "linearizedBaseContracts": [ - 1468, - 1448, - 1323, - 1302, - 969, - 944, - 124, - 386, - 23 - ], - "name": "ERC721Full", - "nodeType": "ContractDefinition", - "nodes": [ - { - "body": { - "id": 1466, - "nodeType": "Block", - "src": "36976:64:1", - "statements": [] - }, - "documentation": null, - "id": 1467, - "implemented": true, - "kind": "constructor", - "modifiers": [ - { - "arguments": [ - { - "argumentTypes": null, - "id": 1462, - "name": "name", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1457, - "src": "36962:4:1", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string memory" - } - }, - { - "argumentTypes": null, - "id": 1463, - "name": "symbol", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1459, - "src": "36968:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string memory" - } - } - ], - "id": 1464, - "modifierName": { - "argumentTypes": null, - "id": 1461, - "name": "ERC721Metadata", - "nodeType": "Identifier", - "overloadedDeclarations": [], - "referencedDeclaration": 1448, - "src": "36947:14:1", - "typeDescriptions": { - "typeIdentifier": "t_type$_t_contract$_ERC721Metadata_$1448_$", - "typeString": "type(contract ERC721Metadata)" - } - }, - "nodeType": "ModifierInvocation", - "src": "36947:28:1" - } - ], - "name": "", - "nodeType": "FunctionDefinition", - "parameters": { - "id": 1460, - "nodeType": "ParameterList", - "parameters": [ - { - "constant": false, - "id": 1457, - "name": "name", - "nodeType": "VariableDeclaration", - "scope": 1467, - "src": "36898:18:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1456, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "36898:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - }, - { - "constant": false, - "id": 1459, - "name": "symbol", - "nodeType": "VariableDeclaration", - "scope": 1467, - "src": "36918:20:1", - "stateVariable": false, - "storageLocation": "memory", - "typeDescriptions": { - "typeIdentifier": "t_string_memory_ptr", - "typeString": "string" - }, - "typeName": { - "id": 1458, - "name": "string", - "nodeType": "ElementaryTypeName", - "src": "36918:6:1", - "typeDescriptions": { - "typeIdentifier": "t_string_storage_ptr", - "typeString": "string" - } - }, - "value": null, - "visibility": "internal" - } - ], - "src": "36897:42:1" - }, - "returnParameters": { - "id": 1465, - "nodeType": "ParameterList", - "parameters": [], - "src": "36976:0:1" - }, - "scope": 1468, - "src": "36885:155:1", - "stateMutability": "nonpayable", - "superFunction": null, - "visibility": "public" - } - ], - "scope": 1469, - "src": "36815:227:1" - } - ], - "src": "61:36982:1" - }, - "compiler": { - "name": "solc", - "version": "0.5.0+commit.1d4f565a.Emscripten.clang" - }, - "networks": {}, - "schemaVersion": "3.0.2", - "updatedAt": "2019-09-05T15:01:09.135Z", - "devdoc": { - "details": "Wrappers over Solidity's arithmetic operations with added overflow checks. * Arithmetic operations in Solidity wrap on overflow. This can easily result in bugs, because programmers usually assume that an overflow raises an error, which is the standard behavior in high level programming languages. `SafeMath` restores this intuition by reverting the transaction when an operation overflows. * Using this library instead of the unchecked operations eliminates an entire class of bugs, so it's recommended to use it always.", - "methods": {} - }, - "userdoc": { - "methods": {} - } -} \ No newline at end of file diff --git a/src/contracts/Color.sol b/src/contracts/Color.sol index 1d6959c..9e60ffb 100644 --- a/src/contracts/Color.sol +++ b/src/contracts/Color.sol @@ -1,4 +1,4 @@ -pragma solidity 0.5.0; +pragma solidity ^0.5.0; import "./ERC721Full.sol"; @@ -16,5 +16,4 @@ contract Color is ERC721Full { _mint(msg.sender, _id); _colorExists[_color] = true; } - } diff --git a/src/contracts/ERC721Full.sol b/src/contracts/ERC721Full.sol index 5ec9734..fd921a6 100644 --- a/src/contracts/ERC721Full.sol +++ b/src/contracts/ERC721Full.sol @@ -1,5 +1,5 @@ -// File: @openzeppelin/contracts/introspection/IERC165.sol +// File: node_modules\@openzeppelin\contracts\introspection\IERC165.sol pragma solidity ^0.5.0; @@ -24,7 +24,7 @@ interface IERC165 { function supportsInterface(bytes4 interfaceId) external view returns (bool); } -// File: @openzeppelin/contracts/token/ERC721/IERC721.sol +// File: node_modules\@openzeppelin\contracts\token\ERC721\IERC721.sol pragma solidity ^0.5.0; @@ -79,7 +79,7 @@ contract IERC721 is IERC165 { function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public; } -// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol +// File: node_modules\@openzeppelin\contracts\token\ERC721\IERC721Receiver.sol pragma solidity ^0.5.0; @@ -107,7 +107,7 @@ contract IERC721Receiver { public returns (bytes4); } -// File: @openzeppelin/contracts/math/SafeMath.sol +// File: node_modules\@openzeppelin\contracts\math\SafeMath.sol pragma solidity ^0.5.0; @@ -217,7 +217,7 @@ library SafeMath { } } -// File: @openzeppelin/contracts/utils/Address.sol +// File: node_modules\@openzeppelin\contracts\utils\Address.sol pragma solidity ^0.5.0; @@ -247,7 +247,7 @@ library Address { } } -// File: @openzeppelin/contracts/drafts/Counters.sol +// File: node_modules\@openzeppelin\contracts\drafts\Counters.sol pragma solidity ^0.5.0; @@ -286,7 +286,7 @@ library Counters { } } -// File: @openzeppelin/contracts/introspection/ERC165.sol +// File: node_modules\@openzeppelin\contracts\introspection\ERC165.sol pragma solidity ^0.5.0; @@ -340,7 +340,7 @@ contract ERC165 is IERC165 { } } -// File: @openzeppelin/contracts/token/ERC721/ERC721.sol +// File: node_modules\@openzeppelin\contracts\token\ERC721\ERC721.sol pragma solidity ^0.5.0; @@ -641,7 +641,7 @@ contract ERC721 is ERC165, IERC721 { } } -// File: @openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol +// File: node_modules\@openzeppelin\contracts\token\ERC721\IERC721Enumerable.sol pragma solidity ^0.5.0; @@ -657,7 +657,7 @@ contract IERC721Enumerable is IERC721 { function tokenByIndex(uint256 index) public view returns (uint256); } -// File: @openzeppelin/contracts/token/ERC721/ERC721Enumerable.sol +// File: node_modules\@openzeppelin\contracts\token\ERC721\ERC721Enumerable.sol pragma solidity ^0.5.0; @@ -858,7 +858,7 @@ contract ERC721Enumerable is ERC165, ERC721, IERC721Enumerable { } } -// File: @openzeppelin/contracts/token/ERC721/IERC721Metadata.sol +// File: node_modules\@openzeppelin\contracts\token\ERC721\IERC721Metadata.sol pragma solidity ^0.5.0; @@ -873,7 +873,7 @@ contract IERC721Metadata is IERC721 { function tokenURI(uint256 tokenId) external view returns (string memory); } -// File: @openzeppelin/contracts/token/ERC721/ERC721Metadata.sol +// File: node_modules\@openzeppelin\contracts\token\ERC721\ERC721Metadata.sol pragma solidity ^0.5.0; @@ -964,7 +964,7 @@ contract ERC721Metadata is ERC165, ERC721, IERC721Metadata { } } -// File: @openzeppelin/contracts/token/ERC721/ERC721Full.sol +// File: node_modules\@openzeppelin\contracts\token\ERC721\ERC721Full.sol pragma solidity ^0.5.0; From 7174f56f9cf6cd84de24bf5acfab76c6467bec51 Mon Sep 17 00:00:00 2001 From: anton-karlovskiy-g Date: Wed, 10 Feb 2021 21:49:37 +0300 Subject: [PATCH 2/6] [chore] clean up --- .vscode/settings.json | 4 +- src/components/App.js | 118 +++++++++++++++++++++------------------- src/contracts/Color.sol | 5 +- src/index.js | 2 + test/Color.test.js | 88 +++++++++++++++--------------- 5 files changed, 111 insertions(+), 106 deletions(-) diff --git a/.vscode/settings.json b/.vscode/settings.json index dc94151..3026c05 100644 --- a/.vscode/settings.json +++ b/.vscode/settings.json @@ -1,6 +1,8 @@ { "cSpell.words": [ "bignumber", - "browserslist" + "browserslist", + "noopener", + "noreferrer" ] } \ No newline at end of file diff --git a/src/components/App.js b/src/components/App.js index 02383db..6419e5d 100755 --- a/src/components/App.js +++ b/src/components/App.js @@ -1,72 +1,71 @@ + import React, { Component } from 'react'; -import Web3 from 'web3' +import Web3 from 'web3'; + +import Color from '../abis/Color.json'; import './App.css'; -import Color from '../abis/Color.json' class App extends Component { + constructor(props) { + super(props); + this.state = { + account: '', + contract: null, + totalSupply: 0, + colors: [] + }; + } async componentWillMount() { - await this.loadWeb3() - await this.loadBlockchainData() + await this.loadWeb3(); + await this.loadBlockchainData(); } async loadWeb3() { if (window.ethereum) { - window.web3 = new Web3(window.ethereum) - await window.ethereum.enable() - } - else if (window.web3) { - window.web3 = new Web3(window.web3.currentProvider) - } - else { - window.alert('Non-Ethereum browser detected. You should consider trying MetaMask!') + window.web3 = new Web3(window.ethereum); + await window.ethereum.enable(); + } else if (window.web3) { + window.web3 = new Web3(window.web3.currentProvider); + } else { + window.alert('Non-Ethereum browser detected. You should consider trying MetaMask!'); } } async loadBlockchainData() { - const web3 = window.web3 + const web3 = window.web3; // Load account - const accounts = await web3.eth.getAccounts() - this.setState({ account: accounts[0] }) + const accounts = await web3.eth.getAccounts(); + this.setState({ account: accounts[0] }); - const networkId = await web3.eth.net.getId() - const networkData = Color.networks[networkId] + const networkId = await web3.eth.net.getId(); + const networkData = Color.networks[networkId]; if(networkData) { - const abi = Color.abi - const address = networkData.address - const contract = new web3.eth.Contract(abi, address) - this.setState({ contract }) - const totalSupply = await contract.methods.totalSupply().call() - this.setState({ totalSupply }) + const abi = Color.abi; + const address = networkData.address; + const contract = new web3.eth.Contract(abi, address); + this.setState({ contract }); + const totalSupply = await contract.methods.totalSupply().call(); + this.setState({ totalSupply }); // Load Colors - for (var i = 1; i <= totalSupply; i++) { - const color = await contract.methods.colors(i - 1).call() + for (let index = 0; index < totalSupply; index++) { + const color = await contract.methods.colors(index).call(); this.setState({ colors: [...this.state.colors, color] - }) + }); } } else { - window.alert('Smart contract not deployed to detected network.') + window.alert('Smart contract not deployed to detected network.'); } } - mint = (color) => { + mint = color => { this.state.contract.methods.mint(color).send({ from: this.state.account }) - .once('receipt', (receipt) => { + .once('receipt', receipt => { this.setState({ colors: [...this.state.colors, color] - }) - }) - } - - constructor(props) { - super(props) - this.state = { - account: '', - contract: null, - totalSupply: 0, - colors: [] - } + }); + }); } render() { @@ -77,13 +76,16 @@ class App extends Component { className="navbar-brand col-sm-3 col-md-2 mr-0" href="http://www.dappuniversity.com/bootcamp" target="_blank" - rel="noopener noreferrer" - > + rel="noopener noreferrer"> Color Tokens @@ -92,35 +94,37 @@ class App extends Component {

Issue Token

-
{ - event.preventDefault() - const color = this.color.value - this.mint(color) - }}> + { + event.preventDefault() + const color = this.color.value + this.mint(color) + }}> { this.color = input }} - /> + ref={(input) => { this.color = input }} /> + value='MINT' />
- { this.state.colors.map((color, key) => { - return( + {this.state.colors.map((color, key) => { + return (
-
+
+
{color}
- ) + ); })}
diff --git a/src/contracts/Color.sol b/src/contracts/Color.sol index 9e60ffb..4be603f 100644 --- a/src/contracts/Color.sol +++ b/src/contracts/Color.sol @@ -6,10 +6,9 @@ contract Color is ERC721Full { string[] public colors; mapping(string => bool) _colorExists; - constructor() ERC721Full("Color", "COLOR") public { - } + constructor() ERC721Full("Color", "COLOR") public {} - // E.G. color = "#FFFFFF" + // e.g. color = "#FFFFFF" function mint(string memory _color) public { require(!_colorExists[_color]); uint _id = colors.push(_color); diff --git a/src/index.js b/src/index.js index d7d1759..f1a93d4 100755 --- a/src/index.js +++ b/src/index.js @@ -1,6 +1,8 @@ + import React from 'react'; import ReactDOM from 'react-dom'; import 'bootstrap/dist/css/bootstrap.css' + import App from './components/App'; import * as serviceWorker from './serviceWorker'; diff --git a/test/Color.test.js b/test/Color.test.js index fc97452..4176534 100644 --- a/test/Color.test.js +++ b/test/Color.test.js @@ -1,73 +1,71 @@ -const Color = artifacts.require('./Color.sol') + +const Color = artifacts.require('./Color.sol'); require('chai') .use(require('chai-as-promised')) - .should() + .should(); contract('Color', (accounts) => { - let contract + let contract; before(async () => { - contract = await Color.deployed() - }) + contract = await Color.deployed(); + }); describe('deployment', async () => { it('deploys successfully', async () => { - const address = contract.address - assert.notEqual(address, 0x0) - assert.notEqual(address, '') - assert.notEqual(address, null) - assert.notEqual(address, undefined) - }) + const address = contract.address; + assert.notEqual(address, 0x0); + assert.notEqual(address, ''); + assert.notEqual(address, null); + assert.notEqual(address, undefined); + }); it('has a name', async () => { - const name = await contract.name() - assert.equal(name, 'Color') - }) + const name = await contract.name(); + assert.equal(name, 'Color'); + }); it('has a symbol', async () => { - const symbol = await contract.symbol() - assert.equal(symbol, 'COLOR') - }) - - }) + const symbol = await contract.symbol(); + assert.equal(symbol, 'COLOR'); + }); + }); describe('minting', async () => { - it('creates a new token', async () => { - const result = await contract.mint('#EC058E') - const totalSupply = await contract.totalSupply() + const result = await contract.mint('#EC058E'); + const totalSupply = await contract.totalSupply(); // SUCCESS - assert.equal(totalSupply, 1) - const event = result.logs[0].args - assert.equal(event.tokenId.toNumber(), 1, 'id is correct') - assert.equal(event.from, '0x0000000000000000000000000000000000000000', 'from is correct') - assert.equal(event.to, accounts[0], 'to is correct') + assert.equal(totalSupply, 1); + const event = result.logs[0].args; + assert.equal(event.tokenId.toNumber(), 1, 'id is correct'); + assert.equal(event.from, '0x0000000000000000000000000000000000000000', 'from is correct'); + assert.equal(event.to, accounts[0], 'to is correct'); // FAILURE: cannot mint same color twice await contract.mint('#EC058E').should.be.rejected; - }) - }) + }); + }); describe('indexing', async () => { it('lists colors', async () => { // Mint 3 more tokens - await contract.mint('#5386E4') - await contract.mint('#FFFFFF') - await contract.mint('#000000') - const totalSupply = await contract.totalSupply() - - let color - let result = [] + await contract.mint('#5386E4'); + await contract.mint('#FFFFFF'); + await contract.mint('#000000'); + const totalSupply = await contract.totalSupply(); - for (var i = 1; i <= totalSupply; i++) { - color = await contract.colors(i - 1) - result.push(color) - } + let color; + let result = []; - let expected = ['#EC058E', '#5386E4', '#FFFFFF', '#000000'] - assert.equal(result.join(','), expected.join(',')) - }) - }) + for (let index = 0; index < totalSupply; index++) { + color = await contract.colors(index); + result.push(color); + }; -}) + let expected = ['#EC058E', '#5386E4', '#FFFFFF', '#000000']; + assert.equal(result.join(','), expected.join(',')); + }); + }); +}); From 668fbd6b6e8ac1b2a1bdd47b725cedfb3130368d Mon Sep 17 00:00:00 2001 From: anton-karlovskiy-g Date: Wed, 10 Feb 2021 22:25:10 +0300 Subject: [PATCH 3/6] [refactor] rewrite app.js using react hooks --- .gitignore | 2 +- src/components/App.js | 234 ++++++++++++++++++++++-------------------- truffle-config.js | 5 +- 3 files changed, 127 insertions(+), 114 deletions(-) diff --git a/.gitignore b/.gitignore index 779b2e3..582a9ca 100644 --- a/.gitignore +++ b/.gitignore @@ -22,4 +22,4 @@ npm-debug.log* yarn-debug.log* yarn-error.log* -/src/abis +/src/built-contracts diff --git a/src/components/App.js b/src/components/App.js index 6419e5d..c323e95 100755 --- a/src/components/App.js +++ b/src/components/App.js @@ -1,27 +1,12 @@ -import React, { Component } from 'react'; +import React from 'react'; import Web3 from 'web3'; -import Color from '../abis/Color.json'; +import Color from '../built-contracts/Color.json'; import './App.css'; -class App extends Component { - constructor(props) { - super(props); - this.state = { - account: '', - contract: null, - totalSupply: 0, - colors: [] - }; - } - - async componentWillMount() { - await this.loadWeb3(); - await this.loadBlockchainData(); - } - - async loadWeb3() { +const loadWeb3 = async () => { + try { if (window.ethereum) { window.web3 = new Web3(window.ethereum); await window.ethereum.enable(); @@ -30,107 +15,134 @@ class App extends Component { } else { window.alert('Non-Ethereum browser detected. You should consider trying MetaMask!'); } + } catch (error) { + console.log('[loadWeb3] error.message => ', error.message); } +}; - async loadBlockchainData() { - const web3 = window.web3; - // Load account - const accounts = await web3.eth.getAccounts(); - this.setState({ account: accounts[0] }); +const App = () => { + const [account, setAccount] = React.useState(''); + const [contract, setContract] = React.useState(null); + const [totalSupply, setTotalSupply] = React.useState(0); + const [colors, setColors] = React.useState([]); + const inputRef = React.useRef(null); - const networkId = await web3.eth.net.getId(); - const networkData = Color.networks[networkId]; - if(networkData) { - const abi = Color.abi; - const address = networkData.address; - const contract = new web3.eth.Contract(abi, address); - this.setState({ contract }); - const totalSupply = await contract.methods.totalSupply().call(); - this.setState({ totalSupply }); - // Load Colors - for (let index = 0; index < totalSupply; index++) { - const color = await contract.methods.colors(index).call(); - this.setState({ - colors: [...this.state.colors, color] - }); + React.useEffect(() => { + (async () => { + await loadWeb3(); + await handleLoadBlockchainData(); + })(); + }, []); + + const handleLoadBlockchainData = async () => { + try { + const web3 = window.web3; + // Load account + const accounts = await web3.eth.getAccounts(); + setAccount(accounts[0]); + + const networkId = await web3.eth.net.getId(); + const networkData = Color.networks[networkId]; + if(networkData) { + const abi = Color.abi; + const address = networkData.address; + const theContract = new web3.eth.Contract(abi, address); + setContract(theContract); + const theTotalSupply = await theContract.methods.totalSupply().call(); + setTotalSupply(theTotalSupply); + // Load Colors + for (let index = 0; index < theTotalSupply; index++) { + const color = await theContract.methods.colors(index).call(); + setColors(prevColors => ([ + ...prevColors, + color + ])); + } + } else { + window.alert('Smart contract not deployed to detected network.'); } - } else { - window.alert('Smart contract not deployed to detected network.'); + } catch (error) { + console.log('[handleLoadBlockchainData] error.message => ', error.message); } - } + }; - mint = color => { - this.state.contract.methods.mint(color).send({ from: this.state.account }) - .once('receipt', receipt => { - this.setState({ - colors: [...this.state.colors, color] - }); - }); - } + const mint = async color => { + try { + await contract.methods.mint(color).send({ from: account }); + setColors(prevColors => ([ + ...prevColors, + color + ])); + } catch (error) { + console.log('[mint] error.message => ', error.message) + } + }; - render() { - return ( -
- -
-
-
-
-

Issue Token

-
{ - event.preventDefault() - const color = this.color.value - this.mint(color) - }}> - { this.color = input }} /> - -
+ const handleSubmit = event => { + event.preventDefault(); + const color = inputRef.current.value; + mint(color); + }; + + return ( +
+ +
+
+
+
+

Issue Token

+
+ + +
+
+
+
+
+
+ {colors.map(color => ( +
+
-
-
-
-
- {this.state.colors.map((color, key) => { - return ( -
-
-
-
{color}
-
- ); - })} -
+
{color}
+
+ ))}
- ); - } -} + + ); +}; export default App; diff --git a/truffle-config.js b/truffle-config.js index 92b5ae5..b1b3443 100644 --- a/truffle-config.js +++ b/truffle-config.js @@ -1,3 +1,4 @@ + require('babel-register'); require('babel-polyfill'); @@ -10,7 +11,7 @@ module.exports = { }, }, contracts_directory: './src/contracts/', - contracts_build_directory: './src/abis/', + contracts_build_directory: './src/built-contracts/', compilers: { solc: { optimizer: { @@ -19,4 +20,4 @@ module.exports = { } } } -} +}; From eccfe25c15bb1ca452372261df028250040055d0 Mon Sep 17 00:00:00 2001 From: anton-karlovskiy-g Date: Wed, 10 Feb 2021 22:30:57 +0300 Subject: [PATCH 4/6] [chore] clean up --- test/Color.test.js | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/test/Color.test.js b/test/Color.test.js index 4176534..ec9f77a 100644 --- a/test/Color.test.js +++ b/test/Color.test.js @@ -36,14 +36,15 @@ contract('Color', (accounts) => { it('creates a new token', async () => { const result = await contract.mint('#EC058E'); const totalSupply = await contract.totalSupply(); - // SUCCESS + + // Success assert.equal(totalSupply, 1); const event = result.logs[0].args; assert.equal(event.tokenId.toNumber(), 1, 'id is correct'); assert.equal(event.from, '0x0000000000000000000000000000000000000000', 'from is correct'); assert.equal(event.to, accounts[0], 'to is correct'); - // FAILURE: cannot mint same color twice + // Failure: cannot mint same color twice await contract.mint('#EC058E').should.be.rejected; }); }); @@ -56,11 +57,10 @@ contract('Color', (accounts) => { await contract.mint('#000000'); const totalSupply = await contract.totalSupply(); - let color; let result = []; for (let index = 0; index < totalSupply; index++) { - color = await contract.colors(index); + const color = await contract.colors(index); result.push(color); }; From 82831c04b9b2ad63652613d55c82789bff7a0aa9 Mon Sep 17 00:00:00 2001 From: anton-karlovskiy-g Date: Wed, 10 Feb 2021 22:33:51 +0300 Subject: [PATCH 5/6] [chore] add contributors --- package.json | 4 ++++ src/{ => assets}/logo.png | Bin 2 files changed, 4 insertions(+) rename src/{ => assets}/logo.png (100%) diff --git a/package.json b/package.json index 09d2835..ab8edc6 100644 --- a/package.json +++ b/package.json @@ -3,6 +3,10 @@ "version": "0.1.0", "description": "An Ethereum Marketplace", "author": "gregory@dappuniversity.com", + "contributors": [ + "gregory@dappuniversity.com", + "Anton K. " + ], "dependencies": { "@openzeppelin/contracts": "^2.3.0", "babel-polyfill": "6.26.0", diff --git a/src/logo.png b/src/assets/logo.png similarity index 100% rename from src/logo.png rename to src/assets/logo.png From 0f0eadb6a77a2a7b53d80440e0bd212d896e52f4 Mon Sep 17 00:00:00 2001 From: anton-karlovskiy Date: Sun, 7 Mar 2021 21:27:08 +0300 Subject: [PATCH 6/6] fix: avoid redeclaring color variable in the loop --- README.md | 36 ++++++++++++++++++++++++++++++++++++ test/Color.test.js | 3 ++- 2 files changed, 38 insertions(+), 1 deletion(-) create mode 100644 README.md diff --git a/README.md b/README.md new file mode 100644 index 0000000..cfd3f40 --- /dev/null +++ b/README.md @@ -0,0 +1,36 @@ +# nft +Crypto Collectible NFT Tutorial with ERC-721 Tokens + +## Dependencies
+Install these prerequisites to continue + +NPM: https://nodejs.org
+Truffle: https://github.com/trufflesuite/truffle
+Ganache: http://truffleframework.com/ganache/
+Metamask: https://metamask.io/
+
+## Step 1. Clone the project +```bash +https://github.com/dappuniversity/nft.git +``` + +## Step 2. Install dependencies +```bash +cd nft +npm install +``` +## Step 3. Start Ganache +Open the Ganache GUI client that you downloaded and installed. This will start your local blockchain instance. + +## Step 4. Compile & Deploy Election Smart Contract +```truffle migrate --reset``` You need to migrate contract in order to deploy in your local system +## Step 5. Configure Metamask +-Unlock Metamask
+-Connect metamask to your local Ethereum blockchain provided by Ganache.
+-Import an account provided by ganache.
+## Step 6. Run the Front End Application +``` +cd src +npm start +``` +Now you Blockchain web-app is served on http://localhost:8000 \ No newline at end of file diff --git a/test/Color.test.js b/test/Color.test.js index ec9f77a..5d2b5cf 100644 --- a/test/Color.test.js +++ b/test/Color.test.js @@ -59,8 +59,9 @@ contract('Color', (accounts) => { let result = []; + let color; for (let index = 0; index < totalSupply; index++) { - const color = await contract.colors(index); + color = await contract.colors(index); result.push(color); };