diff options
Diffstat (limited to 'packages/contracts/src/2.0.0/tokens/ERC20Token')
-rw-r--r-- | packages/contracts/src/2.0.0/tokens/ERC20Token/ERC20Token.sol | 24 | ||||
-rw-r--r-- | packages/contracts/src/2.0.0/tokens/ERC20Token/IERC20Token.sol | 4 |
2 files changed, 14 insertions, 14 deletions
diff --git a/packages/contracts/src/2.0.0/tokens/ERC20Token/ERC20Token.sol b/packages/contracts/src/2.0.0/tokens/ERC20Token/ERC20Token.sol index b6961a6ec..58ffdfcb6 100644 --- a/packages/contracts/src/2.0.0/tokens/ERC20Token/ERC20Token.sol +++ b/packages/contracts/src/2.0.0/tokens/ERC20Token/ERC20Token.sol @@ -16,19 +16,16 @@ */ -pragma solidity ^0.4.24; +pragma solidity 0.4.24; pragma experimental ABIEncoderV2; import "./IERC20Token.sol"; -contract ERC20Token is IERC20Token { - string constant INSUFFICIENT_BALANCE = "ERC20_INSUFFICIENT_BALANCE"; - string constant INSUFFICIENT_ALLOWANCE = "ERC20_INSUFFICIENT_ALLOWANCE"; - string constant OVERFLOW = "Transfer would result in an overflow."; +contract ERC20Token is IERC20Token { - mapping (address => uint256) balances; - mapping (address => mapping (address => uint256)) allowed; + mapping (address => uint256) internal balances; + mapping (address => mapping (address => uint256)) internal allowed; uint256 public totalSupply; @@ -38,11 +35,11 @@ contract ERC20Token is IERC20Token { { require( balances[msg.sender] >= _value, - INSUFFICIENT_BALANCE + "ERC20_INSUFFICIENT_BALANCE" ); require( balances[_to] + _value >= balances[_to], - OVERFLOW + "OVERFLOW" ); balances[msg.sender] -= _value; balances[_to] += _value; @@ -56,15 +53,15 @@ contract ERC20Token is IERC20Token { { require( balances[_from] >= _value, - INSUFFICIENT_BALANCE + "ERC20_INSUFFICIENT_BALANCE" ); require( allowed[_from][msg.sender] >= _value, - INSUFFICIENT_ALLOWANCE + "ERC20_INSUFFICIENT_ALLOWANCE" ); require( balances[_to] + _value >= balances[_to], - OVERFLOW + "OVERFLOW" ); balances[_to] += _value; balances[_from] -= _value; @@ -83,7 +80,8 @@ contract ERC20Token is IERC20Token { } function balanceOf(address _owner) - public view + public + view returns (uint256) { return balances[_owner]; diff --git a/packages/contracts/src/2.0.0/tokens/ERC20Token/IERC20Token.sol b/packages/contracts/src/2.0.0/tokens/ERC20Token/IERC20Token.sol index eb879b6a8..e3e193666 100644 --- a/packages/contracts/src/2.0.0/tokens/ERC20Token/IERC20Token.sol +++ b/packages/contracts/src/2.0.0/tokens/ERC20Token/IERC20Token.sol @@ -16,9 +16,10 @@ */ -pragma solidity ^0.4.24; +pragma solidity 0.4.24; pragma experimental ABIEncoderV2; + contract IERC20Token { /// @notice send `value` token to `to` from `msg.sender` @@ -59,6 +60,7 @@ contract IERC20Token { public view returns (uint256); + // solhint-disable-next-line no-simple-event-func-name event Transfer( address indexed _from, address indexed _to, |