CREATE3Factory

// SPDX-License-Identifier: AGPL-3.0
pragma solidity >=0.6.0 >=0.8.0 ^0.8.13;

// lib/solmate/src/utils/Bytes32AddressLib.sol

/// @notice Library for converting between addresses and bytes32 values.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/Bytes32AddressLib.sol)
library Bytes32AddressLib {
    function fromLast20Bytes(bytes32 bytesValue) internal pure returns (address) {
        return address(uint160(uint256(bytesValue)));
    }

    function fillLast12Bytes(address addressValue) internal pure returns (bytes32) {
        return bytes32(bytes20(addressValue));
    }
}

// src/ICREATE3Factory.sol

/// @title Factory for deploying contracts to deterministic addresses via CREATE3
/// @author zefram.eth
/// @notice Enables deploying contracts using CREATE3. Each deployer (msg.sender) has
/// its own namespace for deployed addresses.
interface ICREATE3Factory {
    /// @notice Deploys a contract using CREATE3
    /// @dev The provided salt is hashed together with msg.sender to generate the final salt
    /// @param salt The deployer-specific salt for determining the deployed contract's address
    /// @param creationCode The creation code of the contract to deploy
    /// @return deployed The address of the deployed contract
    function deploy(bytes32 salt, bytes memory creationCode)
        external
        payable
        returns (address deployed);

    /// @notice Predicts the address of a deployed contract
    /// @dev The provided salt is hashed together with the deployer address to generate the final salt
    /// @param deployer The deployer account that will call deploy()
    /// @param salt The deployer-specific salt for determining the deployed contract's address
    /// @return deployed The address of the contract that will be deployed
    function getDeployed(address deployer, bytes32 salt)
        external
        view
        returns (address deployed);
}

// lib/solmate/src/utils/CREATE3.sol

/// @notice Deploy to deterministic addresses without an initcode factor.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/CREATE3.sol)
/// @author Modified from 0xSequence (https://github.com/0xSequence/create3/blob/master/contracts/Create3.sol)
library CREATE3 {
    using Bytes32AddressLib for bytes32;

    //--------------------------------------------------------------------------------//
    // Opcode     | Opcode + Arguments    | Description      | Stack View             //
    //--------------------------------------------------------------------------------//
    // 0x36       |  0x36                 | CALLDATASIZE     | size                   //
    // 0x3d       |  0x3d                 | RETURNDATASIZE   | 0 size                 //
    // 0x3d       |  0x3d                 | RETURNDATASIZE   | 0 0 size               //
    // 0x37       |  0x37                 | CALLDATACOPY     |                        //
    // 0x36       |  0x36                 | CALLDATASIZE     | size                   //
    // 0x3d       |  0x3d                 | RETURNDATASIZE   | 0 size                 //
    // 0x34       |  0x34                 | CALLVALUE        | value 0 size           //
    // 0xf0       |  0xf0                 | CREATE           | newContract            //
    //--------------------------------------------------------------------------------//
    // Opcode     | Opcode + Arguments    | Description      | Stack View             //
    //--------------------------------------------------------------------------------//
    // 0x67       |  0x67XXXXXXXXXXXXXXXX | PUSH8 bytecode   | bytecode               //
    // 0x3d       |  0x3d                 | RETURNDATASIZE   | 0 bytecode             //
    // 0x52       |  0x52                 | MSTORE           |                        //
    // 0x60       |  0x6008               | PUSH1 08         | 8                      //
    // 0x60       |  0x6018               | PUSH1 18         | 24 8                   //
    // 0xf3       |  0xf3                 | RETURN           |                        //
    //--------------------------------------------------------------------------------//
    bytes internal constant PROXY_BYTECODE = hex"67_36_3d_3d_37_36_3d_34_f0_3d_52_60_08_60_18_f3";

    bytes32 internal constant PROXY_BYTECODE_HASH = keccak256(PROXY_BYTECODE);

    function deploy(
        bytes32 salt,
        bytes memory creationCode,
        uint256 value
    ) internal returns (address deployed) {
        bytes memory proxyChildBytecode = PROXY_BYTECODE;

        address proxy;
        assembly {
            // Deploy a new contract with our pre-made bytecode via CREATE2.
            // We start 32 bytes into the code to avoid copying the byte length.
            proxy := create2(0, add(proxyChildBytecode, 32), mload(proxyChildBytecode), salt)
        }
        require(proxy != address(0), "DEPLOYMENT_FAILED");

        deployed = getDeployed(salt);
        (bool success, ) = proxy.call{value: value}(creationCode);
        require(success && deployed.code.length != 0, "INITIALIZATION_FAILED");
    }

    function getDeployed(bytes32 salt) internal view returns (address) {
        address proxy = keccak256(
            abi.encodePacked(
                // Prefix:
                bytes1(0xFF),
                // Creator:
                address(this),
                // Salt:
                salt,
                // Bytecode hash:
                PROXY_BYTECODE_HASH
            )
        ).fromLast20Bytes();

        return
            keccak256(
                abi.encodePacked(
                    // 0xd6 = 0xc0 (short RLP prefix) + 0x16 (length of: 0x94 ++ proxy ++ 0x01)
                    // 0x94 = 0x80 + 0x14 (0x14 = the length of an address, 20 bytes, in hex)
                    hex"d6_94",
                    proxy,
                    hex"01" // Nonce of the proxy contract (1)
                )
            ).fromLast20Bytes();
    }
}

// src/CREATE3Factory.sol

/// @title Factory for deploying contracts to deterministic addresses via CREATE3
/// @author zefram.eth
/// @notice Enables deploying contracts using CREATE3. Each deployer (msg.sender) has
/// its own namespace for deployed addresses.
contract CREATE3Factory is ICREATE3Factory {
    /// 
    function deploy(bytes32 salt, bytes memory creationCode)
        external
        payable
        override
        returns (address deployed)
    {
        // hash salt with the deployer address to give each deployer its own namespace
        salt = keccak256(abi.encodePacked(msg.sender, salt));
        return CREATE3.deploy(salt, creationCode, msg.value);
    }

    /// 
    function getDeployed(address deployer, bytes32 salt)
        external
        view
        override
        returns (address deployed)
    {
        // hash salt with the deployer address to give each deployer its own namespace
        salt = keccak256(abi.encodePacked(deployer, salt));
        return CREATE3.getDeployed(salt);
    }
}