swap-contracts-module/contracts/Migrations.sol

25 lines
576 B
Solidity

pragma solidity ^0.7.0;
import "@openzeppelin/contracts/presets/ERC20PresetMinterPauser.sol";
contract Migrations {
address public owner;
uint public last_completed_migration;
modifier restricted() {
if (msg.sender == owner) _;
}
constructor() public {
owner = msg.sender;
}
function setCompleted(uint completed) public restricted {
last_completed_migration = completed;
}
function upgrade(address new_address) public restricted {
Migrations upgraded = Migrations(new_address);
upgraded.setCompleted(last_completed_migration);
}
}