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Merge pull request #211 from Consensys/chore/testing-on-local-stack
Chore: testing on local stack
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,7 +1,8 @@ | ||
| { | ||
| "require": "ts-node/register", | ||
| "loader": "ts-node/esm", | ||
| "extensions": ["ts", "tsx"], | ||
| "spec": ["test/**/*.spec.*"], | ||
| "watch-files": ["src"] | ||
| } | ||
| "extensions": [ | ||
| "ts", | ||
| "tsx" | ||
| ] | ||
| } |
89 changes: 89 additions & 0 deletions
89
packages/linea-ens-resolver/contracts/clones-with-immutable-args/Clone.sol
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| // SPDX-License-Identifier: BSD | ||
| pragma solidity ^0.8.4; | ||
|
|
||
| /// @title Clone | ||
| /// @author zefram.eth | ||
| /// @notice Provides helper functions for reading immutable args from calldata | ||
| contract Clone { | ||
| /// @notice Reads an immutable arg with type address | ||
| /// @param argOffset The offset of the arg in the packed data | ||
| /// @return arg The arg value | ||
| function _getArgAddress( | ||
| uint256 argOffset | ||
| ) internal pure returns (address arg) { | ||
| uint256 offset = _getImmutableArgsOffset(); | ||
| // solhint-disable-next-line no-inline-assembly | ||
| assembly { | ||
| arg := shr(0x60, calldataload(add(offset, argOffset))) | ||
| } | ||
| } | ||
|
|
||
| /// @notice Reads an immutable arg with type uint256 | ||
| /// @param argOffset The offset of the arg in the packed data | ||
| /// @return arg The arg value | ||
| function _getArgUint256( | ||
| uint256 argOffset | ||
| ) internal pure returns (uint256 arg) { | ||
| uint256 offset = _getImmutableArgsOffset(); | ||
| // solhint-disable-next-line no-inline-assembly | ||
| assembly { | ||
| arg := calldataload(add(offset, argOffset)) | ||
| } | ||
| } | ||
|
|
||
| /// @notice Reads a uint256 array stored in the immutable args. | ||
| /// @param argOffset The offset of the arg in the packed data | ||
| /// @param arrLen Number of elements in the array | ||
| /// @return arr The array | ||
| function _getArgUint256Array( | ||
| uint256 argOffset, | ||
| uint64 arrLen | ||
| ) internal pure returns (uint256[] memory arr) { | ||
| uint256 offset = _getImmutableArgsOffset(); | ||
| uint256 el; | ||
| arr = new uint256[](arrLen); | ||
| for (uint64 i = 0; i < arrLen; i++) { | ||
| // solhint-disable-next-line no-inline-assembly | ||
| assembly { | ||
| el := calldataload(add(add(offset, argOffset), mul(i, 32))) | ||
| } | ||
| arr[i] = el; | ||
| } | ||
| return arr; | ||
| } | ||
|
|
||
| /// @notice Reads an immutable arg with type uint64 | ||
| /// @param argOffset The offset of the arg in the packed data | ||
| /// @return arg The arg value | ||
| function _getArgUint64( | ||
| uint256 argOffset | ||
| ) internal pure returns (uint64 arg) { | ||
| uint256 offset = _getImmutableArgsOffset(); | ||
| // solhint-disable-next-line no-inline-assembly | ||
| assembly { | ||
| arg := shr(0xc0, calldataload(add(offset, argOffset))) | ||
| } | ||
| } | ||
|
|
||
| /// @notice Reads an immutable arg with type uint8 | ||
| /// @param argOffset The offset of the arg in the packed data | ||
| /// @return arg The arg value | ||
| function _getArgUint8(uint256 argOffset) internal pure returns (uint8 arg) { | ||
| uint256 offset = _getImmutableArgsOffset(); | ||
| // solhint-disable-next-line no-inline-assembly | ||
| assembly { | ||
| arg := shr(0xf8, calldataload(add(offset, argOffset))) | ||
| } | ||
| } | ||
|
|
||
| /// @return offset The offset of the packed immutable args in calldata | ||
| function _getImmutableArgsOffset() internal pure returns (uint256 offset) { | ||
| // solhint-disable-next-line no-inline-assembly | ||
| assembly { | ||
| offset := sub( | ||
| calldatasize(), | ||
| add(shr(240, calldataload(sub(calldatasize(), 2))), 2) | ||
| ) | ||
| } | ||
| } | ||
| } |
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