81 lines
2.2 KiB
Solidity
81 lines
2.2 KiB
Solidity
/*
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Copyright 2019 ZeroEx Intl.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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pragma solidity ^0.5.5;
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import "@0x/contracts-utils/contracts/src/LibSafeMath.sol";
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import "@0x/contracts-utils/contracts/src/Ownable.sol";
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import "../src/MintableERC20Token.sol";
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contract DummyERC20Token is
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Ownable,
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MintableERC20Token
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{
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using LibSafeMath for uint256;
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string public name;
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string public symbol;
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uint256 public decimals;
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uint256 public constant MAX_MINT_AMOUNT = 10000000000000000000000;
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constructor (
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string memory _name,
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string memory _symbol,
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uint256 _decimals,
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uint256 _totalSupply
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)
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public
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{
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name = _name;
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symbol = _symbol;
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decimals = _decimals;
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_totalSupply = _totalSupply;
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balances[msg.sender] = _totalSupply;
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}
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/// @dev Sets the balance of target address
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/// @param _target Address or which balance will be updated
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/// @param _value New balance of target address
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function setBalance(address _target, uint256 _value)
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external
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onlyOwner
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{
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uint256 currBalance = balances[_target];
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if (_value < currBalance) {
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_totalSupply = _totalSupply.safeSub(currBalance.safeSub(_value));
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} else {
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_totalSupply = _totalSupply.safeAdd(_value.safeSub(currBalance));
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}
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balances[_target] = _value;
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}
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/// @dev Mints new tokens for sender
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/// @param _value Amount of tokens to mint
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function mint(uint256 _value)
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external
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{
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require(
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_value <= MAX_MINT_AMOUNT,
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"VALUE_TOO_LARGE"
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);
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_mint(msg.sender, _value);
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}
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}
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