Created
November 12, 2020 09:01
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| // SPDX-License-Identifier: MIT | |
| pragma solidity ^0.6.0; | |
| import "https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/utils/Create2.sol"; | |
| contract MinimalProxyFactory { | |
| event MinimalProxyCreated(address minimalProxy); | |
| function computeAddress(uint256 salt, address implementation) | |
| public | |
| view | |
| returns (address) | |
| { | |
| return | |
| Create2.computeAddress( | |
| keccak256(abi.encodePacked(salt)), | |
| keccak256(getContractCreationCode(implementation)), | |
| address(this) | |
| ); | |
| } | |
| function deploy( | |
| uint256 salt, | |
| address implementation, | |
| bytes memory _data | |
| ) public { | |
| address minimalProxy = Create2.deploy( | |
| 0, | |
| keccak256(abi.encodePacked(salt)), | |
| getContractCreationCode(implementation) | |
| ); | |
| if(_data.length > 0) { | |
| (bool success,) = minimalProxy.call(_data); | |
| require(success); | |
| } | |
| emit MinimalProxyCreated(minimalProxy); | |
| } | |
| function getContractCreationCode(address logic) | |
| internal | |
| pure | |
| returns (bytes memory) | |
| { | |
| bytes10 creation = 0x3d602d80600a3d3981f3; | |
| bytes10 prefix = 0x363d3d373d3d3d363d73; | |
| bytes20 targetBytes = bytes20(logic); | |
| bytes15 suffix = 0x5af43d82803e903d91602b57fd5bf3; | |
| return abi.encodePacked(creation, prefix, targetBytes, suffix); | |
| } | |
| } |
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