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author | Fabio Berger <me@fabioberger.com> | 2018-08-22 18:41:42 +0800 |
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committer | Fabio Berger <me@fabioberger.com> | 2018-08-22 18:41:42 +0800 |
commit | 0248add542ac801bcb021fa7b13c182baec5612e (patch) | |
tree | 1d04404632ee381621b384f1e82ade97c06c9b92 /packages/contracts/src/2.0.0/tokens/ERC20Token/MintableERC20Token.sol | |
parent | c12f0d04bb2f0d5ad73943d02a592a110423a423 (diff) | |
parent | 80e52464a6fdf9576776214f77e46d441b959b06 (diff) | |
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Merge development branch
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 + ); + } +} |