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/**
 *Submitted for verification at BscScan.com on 2022-09-02
*/

/**
 *Submitted for verification at Etherscan.io on 2022-08-31
*/

// Sources flattened with hardhat v2.10.1 https://hardhat.org

// File contracts/ConstAddressDeployer.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

contract ConstAddressDeployer {
    error EmptyBytecode();
    error FailedDeploy();
    error FailedInit();

    event Deployed(bytes32 indexed bytecodeHash, bytes32 indexed salt, address indexed deployedAddress);

    /**
     * @dev Deploys a contract using `CREATE2`. The address where the contract
     * will be deployed can be known in advance via {deployedAddress}.
     *
     * The bytecode for a contract can be obtained from Solidity with
     * `type(contractName).creationCode`.
     *
     * Requirements:
     *
     * - `bytecode` must not be empty.
     * - `salt` must have not been used for `bytecode` already by the same `msg.sender`.
     */
    function deploy(bytes memory bytecode, bytes32 salt) external returns (address deployedAddress_) {
        deployedAddress_ = _deploy(bytecode, keccak256(abi.encode(msg.sender, salt)));
    }

    /**
     * @dev Deploys a contract using `CREATE2` and initialize it. The address where the contract
     * will be deployed can be known in advance via {deployedAddress}.
     *
     * The bytecode for a contract can be obtained from Solidity with
     * `type(contractName).creationCode`.
     *
     * Requirements:
     *
     * - `bytecode` must not be empty.
     * - `salt` must have not been used for `bytecode` already by the same `msg.sender`.
     * - `init` is used to initialize the deployed contract
     *    as an option to not have the constructor args affect the address derived by `CREATE2`.
     */
    function deployAndInit(
        bytes memory bytecode,
        bytes32 salt,
        bytes calldata init
    ) external returns (address deployedAddress_) {
        deployedAddress_ = _deploy(bytecode, keccak256(abi.encode(msg.sender, salt)));

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, ) = deployedAddress_.call(init);
        if (!success) revert FailedInit();
    }

    /**
     * @dev Returns the address where a contract will be stored if deployed via {deploy} or {deployAndInit} by `sender`.
     * Any change in the `bytecode`, `sender`, or `salt` will result in a new destination address.
     */
    function deployedAddress(
        bytes calldata bytecode,
        address sender,
        bytes32 salt
    ) external view returns (address deployedAddress_) {
        bytes32 newSalt = keccak256(abi.encode(sender, salt));
        deployedAddress_ = address(
            uint160(
                uint256(
                    keccak256(
                        abi.encodePacked(
                            hex'ff',
                            address(this),
                            newSalt,
                            keccak256(bytecode) // init code hash
                        )
                    )
                )
            )
        );
    }

    function _deploy(bytes memory bytecode, bytes32 salt) internal returns (address deployedAddress_) {
        if (bytecode.length == 0) revert EmptyBytecode();

        // solhint-disable-next-line no-inline-assembly
        assembly {
            deployedAddress_ := create2(0, add(bytecode, 32), mload(bytecode), salt)
        }

        if (deployedAddress_ == address(0)) revert FailedDeploy();

        emit Deployed(keccak256(bytecode), salt, deployedAddress_);
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"name":"EmptyBytecode","type":"error"},{"inputs":[],"name":"FailedDeploy","type":"error"},{"inputs":[],"name":"FailedInit","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"bytecodeHash","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"salt","type":"bytes32"},{"indexed":true,"internalType":"address","name":"deployedAddress","type":"address"}],"name":"Deployed","type":"event"},{"inputs":[{"internalType":"bytes","name":"bytecode","type":"bytes"},{"internalType":"bytes32","name":"salt","type":"bytes32"}],"name":"deploy","outputs":[{"internalType":"address","name":"deployedAddress_","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes","name":"bytecode","type":"bytes"},{"internalType":"bytes32","name":"salt","type":"bytes32"},{"internalType":"bytes","name":"init","type":"bytes"}],"name":"deployAndInit","outputs":[{"internalType":"address","name":"deployedAddress_","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes","name":"bytecode","type":"bytes"},{"internalType":"address","name":"sender","type":"address"},{"internalType":"bytes32","name":"salt","type":"bytes32"}],"name":"deployedAddress","outputs":[{"internalType":"address","name":"deployedAddress_","type":"address"}],"stateMutability":"view","type":"function"}]

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