Parasol code example

Token.psol

pragma solidity ^0.4.24;

{{ strict = true }} // Activate strict mode. This will abort deployment on both errors and warnings.

/// @title {{= title }}
contract Token {

    // Variables retrieved from parasol.js config file pre compilation
    string private _name = "{{= tokenName}}";
    string private _symbol = "{{= tokenSymbol}}";
    uint8 private _decimals = {{= tokenDecimals}};
    uint256 private _totalSupply = {{= tokenSupply}};
    
    mapping (address => uint256) public _balances;

    event Transfer(address indexed _from, address indexed _to, uint256 _value);

    constructor() public {
        _balances[msg.sender] = _totalSupply;
    }

    /**
    * @dev Transfer token for a specified addresses
    * @param _to The address to transfer to.
    * @param _value The amount to be transferred.
    */
    function transfer(address _to, uint256 _value) public returns (bool success) {
        require(_balances[msg.sender] >= _value);
        _balances[msg.sender] -= _value;
        _balances[_to] += _value;
        emit Transfer(msg.sender, _to, _value);
        return true;
    }

    {{
    
        // inline mocha unit test
        test(this, 'Balance should change balance after transfer()', async function() {
            var preBalance = await contracts["Token.psol:Token"].methods.balanceOf(accounts[0]).call()
            await contracts["Token.psol:Token"].methods.transfer(accounts[1], 1).send()
            var postBalance = await contracts["Token.psol:Token"].methods.balanceOf(accounts[0]).call()
            assert.notEqual(preBalance, postBalance)
        })
    
    }}

    /// @author Nour Haridy
    /// @dev Checks balance of address
    /// @param _owner The queried address
    /// @return balance of address
    function balanceOf(address _owner) constant public returns (uint256 balance) {
        return _balances[_owner];
    }

    /**
    * @return the name of the token.
    */
    function name() public view returns(string) {
        return _name;
    }

    /**
    * @return the symbol of the token.
    */
    function symbol() public view returns(string) {
        return _symbol;
    }

    /**
    * @return the number of decimals of the token.
    */
    function decimals() public view returns(uint8) {
        return _decimals;
    }

    // Preprocessor directive. Only compiles if in 'dev' network
    {{ if (network === "dev") { }}

    /// @dev Force transfers tokens from any account to another. Only compiled in 'dev' network
    /// @param _from The address of the transfer sender
    /// @param _to The address of the transfer recipient
    /// @param _value The amount of tokens to be transferred
    /// @return true if tokens transferred successfully
    function forceTransfer(address _from, address _to, uint256 _value) public returns (bool success) {
        require(_balances[_from] >= _value);
        _balances[_from] -= _value;
        _balances[_to] += _value;
        emit Transfer(_from, _to, _value);
        return true;
    }

    {{ } }}

}

{{

    parasol.onCompiled(this, function(fileName){
        console.log("File: " + fileName + " compiled")
    })

    parasol.onError(this, function(e){
        console.log("error: " + e)
    })

    parasol.onDeployed(this, function(contract, contractName){
        console.log(contractName + ' deployed')
    })

}}