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author | Amir Bandeali <abandeali1@gmail.com> | 2018-07-27 08:18:43 +0800 |
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committer | Amir Bandeali <abandeali1@gmail.com> | 2018-08-17 08:31:21 +0800 |
commit | f5459164d283c4b55a0514faf3213334c45fea50 (patch) | |
tree | c1b2bd707553004f87a959d93c9f15b3f09fd292 /packages/contracts/src/2.0.0/tokens/ERC20Token/MintableERC20Token.sol | |
parent | 2743eee044edfd3dafc012e31f60ecf4ee0ce30f (diff) | |
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Restructure directories
Diffstat (limited to 'packages/contracts/src/2.0.0/tokens/ERC20Token/MintableERC20Token.sol')
-rw-r--r-- | packages/contracts/src/2.0.0/tokens/ERC20Token/MintableERC20Token.sol | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/packages/contracts/src/2.0.0/tokens/ERC20Token/MintableERC20Token.sol b/packages/contracts/src/2.0.0/tokens/ERC20Token/MintableERC20Token.sol new file mode 100644 index 000000000..cd1c7b4bb --- /dev/null +++ b/packages/contracts/src/2.0.0/tokens/ERC20Token/MintableERC20Token.sol @@ -0,0 +1,61 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "../../utils/SafeMath/SafeMath.sol"; +import "./UnlimitedAllowanceERC20Token.sol"; + + +contract MintableERC20Token is + SafeMath, + UnlimitedAllowanceERC20Token +{ + + /// @dev Mints new tokens + /// @param _to Address of the beneficiary that will own the minted token + /// @param _value Amount of tokens to mint + function _mint(address _to, uint256 _value) + internal + { + balances[_to] = safeAdd(_value, balances[_to]); + _totalSupply = safeAdd(_totalSupply, _value); + + emit Transfer( + address(0), + _to, + _value + ); + } + + /// @dev Mints new tokens + /// @param _owner Owner of tokens that will be burned + /// @param _value Amount of tokens to burn + function _burn(address _owner, uint256 _value) + internal + { + balances[_owner] = safeSub(balances[_owner], _value); + _totalSupply = safeSub(_totalSupply, _value); + + emit Transfer( + _owner, + address(0), + _value + ); + } +} |