Upgrade tests to use typescript

[martinstellnberger]

Useful links
npm install -g yarn
https://www.npmjs.com/package/yarn
https://github.com/ethereum-ts/truffle-typechain-example#setup

[martinstellnberger]

Includes a bug in generating Library contract for complex type
https://github.com/ethereum-ts/TypeChain

     pragma solidity ^0.5.0;

     /** @title Library functions used by contracts within this ecosystem.*/
     library Lib {

     /**
     * @dev Enum to store the states of HashMapping entries
     */
     enum HashState {
         /*0*/ Invalid,
         /*1*/ Active,
         /*2*/ Archived
     }

    /**
    * @dev Efficient storage container for active and archived hashes enabling iteration
    */
	struct HashMappping {
        mapping(bytes32 => HashState) hashState;
        mapping(uint => bytes32) itHashMap;
        uint firstIdx;
        uint nextIdx;
        uint count;
    }

    /**
    * @dev Add a new hash to the storage container if it is not yet part of it
    * @param self Struct storage container pointing to itself
    * @param _hash Hash to add to the struct
    */
    function add(HashMappping storage self, bytes32 _hash) public {
        // Ensure that the hash has not been previously already been added (is still in an invalid state)
        assert(self.hashState[_hash] == HashState.Invalid);
        // Set the state of hash to Active
        self.hashState[_hash] = HashState.Active;
        // Index the hash with the next idx
        self.itHashMap[self.nextIdx] = _hash;
        self.nextIdx++;
        self.count++;
    }
}

See below info:

$ truffle compile --all
Compiling ./contracts/Greeter.sol...
Compiling ./contracts/Lib.sol...
Compiling ./contracts/Migrations.sol...
Compiling ./contracts/Owned.sol...
Writing artifacts to ./build/contracts

$ yarn generate
yarn run v1.12.3
$ truffle compile && typechain --target truffle './build/**/*.json'
ts-gen: Running Typechain
ts-gen: ./build/**/*.json matched 4 files.
ts-gen: Processing build/contracts/Greeter.json
ts-gen: Processing build/contracts/Lib.json
**Error occured:  Unknown type: Lib.HashMappping storage**
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

$ truffle version
Truffle v5.0.0-beta.2 (core: 5.0.0-beta.2)
Solidity v0.5.0 (solc-js)
Node v10.13.0

[martinstellnberger]

Contents of Package.json file

{
  "license": "ISC",
  "devDependencies": {
    "@types/bignumber.js": "^5.0.0",
    "@types/chai": "^4.1.7",
    "@types/mocha": "^5.2.5",
    "@types/node": "^10.12.10",
    "truffle-typings": "^1.0.5",
    "ts-generator": "^0.0.8",
    "ts-node": "^7.0.1",
    "typechain": "^0.3.9",
    "typescript": "^3.1.6"
  },
  "dependencies": {
    "solc": "^0.5.0",
    "truffle": "^5.0.0-beta.2"
  },
  "scripts": {
    "generate": "truffle compile && typechain --target truffle './build/**/*.json'",
    "prepare": "yarn generate",
    "test": "truffle test && yarn tsc",
    "tsc": "tsc --noEmit"
  }
}

[martinstellnberger]

Not sure how the migration component of the example project
https://github.com/ethereum-ts/truffle-typechain-example
is supposed to work. Put on hold for 2 months and reinvestigate.