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openzeppelin-contracts/contracts/mocks/docs/ERC20WithAutoMinerReward.sol
Francisco bd25a0a26f Fix guides for 5.0 (#4654)
Co-authored-by: Ernesto García <ernestognw@gmail.com>
(cherry picked from commit e12511b53e)
2023-10-04 22:39:47 -03:00

23 lines
562 B
Solidity

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import {ERC20} from "../../token/ERC20/ERC20.sol";
contract ERC20WithAutoMinerReward is ERC20 {
constructor() ERC20("Reward", "RWD") {
_mintMinerReward();
}
function _mintMinerReward() internal {
_mint(block.coinbase, 1000);
}
function _update(address from, address to, uint256 value) internal virtual override {
if (!(from == address(0) && to == block.coinbase)) {
_mintMinerReward();
}
super._update(from, to, value);
}
}