51 lines
1.1 KiB
Solidity
51 lines
1.1 KiB
Solidity
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pragma solidity >=0.6.3;
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// Author: Louis Holbrook <dev@holbrook.no> 0826EDA1702D1E87C6E2875121D2E7BB88C2A746
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// SPDX-License-Identifier: AGPL-3.0-or-later
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contract MinterTest {
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uint256 public totalMinted;
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uint256 public totalBurned;
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uint256 balance;
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event Burn(address indexed _burner, uint256 _burned);
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constructor(uint256 _mintValue) {
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totalMinted = _mintValue;
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balance = _mintValue;
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}
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function burn(address _from, uint256 _value, bytes calldata _data) public {
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_from;
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_data;
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burn(_value);
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}
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function burn(uint256 _value) public returns (bool) {
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burnCore(_value);
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return true;
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}
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function burnCore(uint256 _value) internal returns(uint256) {
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require(balance - _value >= 0);
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totalBurned += _value;
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balance -= _value;
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emit Burn(msg.sender, _value);
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return _value;
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}
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function burn() public returns (uint256) {
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return burnCore(totalMinted);
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}
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function supportsInterface(bytes4 _sum) public pure returns (bool) {
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if (_sum == 0x01ffc9a7) { // EIP165
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return true;
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}
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if (_sum == 0xbc4babdd) { // Burner
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return true;
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}
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return false;
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}
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}
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