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author | fragosti <francesco.agosti93@gmail.com> | 2018-08-21 03:01:58 +0800 |
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committer | fragosti <francesco.agosti93@gmail.com> | 2018-08-21 03:01:58 +0800 |
commit | cabce8cb674e937a566e8a821e3959076390f603 (patch) | |
tree | 085b13d8d39c78ae6b5b58157ad73ca5efea544f /packages/contracts/src/2.0.0/tokens/ERC20Token/MintableERC20Token.sol | |
parent | 44cc5e45cc3a3ed7db2691a287500e5d61a2d0c1 (diff) | |
parent | 756787c61fff9c6b463fbbd69b48210dafe62004 (diff) | |
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Merge branch 'development' of https://github.com/0xProject/0x-monorepo into feature/connect/sra-api-v2
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 + ); + } +} |