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Latest 25 from a total of 1,930 transactions
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Deploy Create2 | 7264919 | 17 hrs ago | IN | 0 ETH | 0.01781438 | ||||
Deploy Create2 | 7264917 | 17 hrs ago | IN | 0 ETH | 0.01783545 | ||||
Deploy Create3 | 7264349 | 19 hrs ago | IN | 0 ETH | 0.00540224 | ||||
Deploy Create3 | 7264343 | 19 hrs ago | IN | 0 ETH | 0.00551462 | ||||
Deploy Create3 | 7264072 | 20 hrs ago | IN | 0 ETH | 0.00448738 | ||||
Deploy Create2 | 7261179 | 30 hrs ago | IN | 0 ETH | 0.00095097 | ||||
Deploy Create2 | 7261178 | 30 hrs ago | IN | 0 ETH | 0.00095098 | ||||
Deploy Create2 | 7261162 | 30 hrs ago | IN | 0 ETH | 0.00000147 | ||||
Deploy Create2 | 7261158 | 30 hrs ago | IN | 0 ETH | 0.00095103 | ||||
Deploy Create3 | 7258599 | 40 hrs ago | IN | 0 ETH | 0.00649181 | ||||
Deploy Create3 | 7258530 | 40 hrs ago | IN | 0 ETH | 0.02400529 | ||||
Deploy Create2 | 7258208 | 41 hrs ago | IN | 0 ETH | 0.00818153 | ||||
Deploy Create2 | 7258194 | 41 hrs ago | IN | 0 ETH | 0.00769475 | ||||
Deploy Create3 | 7248890 | 3 days ago | IN | 0 ETH | 0.02710966 | ||||
Deploy Create2 | 7246103 | 3 days ago | IN | 0 ETH | 0.00519655 | ||||
Deploy Create2 | 7246103 | 3 days ago | IN | 0 ETH | 0.00519655 | ||||
Deploy Create2 | 7244490 | 3 days ago | IN | 0 ETH | 0.11678196 | ||||
Deploy Create3 | 7243559 | 3 days ago | IN | 0 ETH | 0.01300021 | ||||
Deploy Create3 | 7243418 | 3 days ago | IN | 0 ETH | 0.00421571 | ||||
Deploy Create3 | 7243117 | 3 days ago | IN | 0 ETH | 0.00765982 | ||||
Deploy Create3 | 7242702 | 4 days ago | IN | 0 ETH | 0.00597726 | ||||
Deploy Create3 | 7242433 | 4 days ago | IN | 0 ETH | 0.00992332 | ||||
Deploy Create3 | 7242324 | 4 days ago | IN | 0 ETH | 0.00465117 | ||||
Deploy Create2 | 7224251 | 6 days ago | IN | 0 ETH | 0.00844221 | ||||
Deploy Create2 | 7224234 | 6 days ago | IN | 0 ETH | 0.00785003 |
Latest 25 internal transactions (View All)
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Contract Source Code Verified (Exact Match)
Contract Name:
CreateX
Compiler Version
v0.8.23+commit.f704f362
Optimization Enabled:
Yes with 10000000 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: AGPL-3.0-only pragma solidity 0.8.23; /** * @title CreateX Factory Smart Contract * @author pcaversaccio (https://web.archive.org/web/20230921103111/https://pcaversaccio.com/) * @custom:coauthor Matt Solomon (https://web.archive.org/web/20230921103335/https://mattsolomon.dev/) * @notice Factory smart contract to make easier and safer usage of the * `CREATE` (https://web.archive.org/web/20230921103540/https://www.evm.codes/#f0?fork=shanghai) and `CREATE2` * (https://web.archive.org/web/20230921103540/https://www.evm.codes/#f5?fork=shanghai) EVM opcodes as well as of * `CREATE3`-based (https://web.archive.org/web/20230921103920/https://github.com/ethereum/EIPs/pull/3171) contract creations. * @dev To simplify testing of non-public variables and functions, we use the `internal` * function visibility specifier `internal` for all variables and functions, even though * they could technically be `private` since we do not expect anyone to inherit from * the `CreateX` contract. * @custom:security-contact See https://web.archive.org/web/20230921105029/https://raw.githubusercontent.com/pcaversaccio/createx/main/SECURITY.md. */ contract CreateX { /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* IMMUTABLES */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /** * @dev Caches the contract address at construction, to be used for the custom errors. */ address internal immutable _SELF = address(this); /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* TYPES */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /** * @dev Struct for the `payable` amounts in a deploy-and-initialise call. */ struct Values { uint256 constructorAmount; uint256 initCallAmount; } /** * @dev Enum for the selection of a permissioned deploy protection. */ enum SenderBytes { MsgSender, ZeroAddress, Random } /** * @dev Enum for the selection of a cross-chain redeploy protection. */ enum RedeployProtectionFlag { True, False, Unspecified } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* EVENTS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /** * @dev Event that is emitted when a contract is successfully created. * @param newContract The address of the new contract. * @param salt The 32-byte random value used to create the contract address. */ event ContractCreation(address indexed newContract, bytes32 indexed salt); /** * @dev Event that is emitted when a contract is successfully created. * @param newContract The address of the new contract. */ event ContractCreation(address indexed newContract); /** * @dev Event that is emitted when a `CREATE3` proxy contract is successfully created. * @param newContract The address of the new proxy contract. * @param salt The 32-byte random value used to create the proxy address. */ event Create3ProxyContractCreation(address indexed newContract, bytes32 indexed salt); /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* CUSTOM ERRORS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /** * @dev Error that occurs when the contract creation failed. * @param emitter The contract that emits the error. */ error FailedContractCreation(address emitter); /** * @dev Error that occurs when the contract initialisation call failed. * @param emitter The contract that emits the error. * @param revertData The data returned by the failed initialisation call. */ error FailedContractInitialisation(address emitter, bytes revertData); /** * @dev Error that occurs when the salt value is invalid. * @param emitter The contract that emits the error. */ error InvalidSalt(address emitter); /** * @dev Error that occurs when the nonce value is invalid. * @param emitter The contract that emits the error. */ error InvalidNonceValue(address emitter); /** * @dev Error that occurs when transferring ether has failed. * @param emitter The contract that emits the error. * @param revertData The data returned by the failed ether transfer. */ error FailedEtherTransfer(address emitter, bytes revertData); /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* CREATE */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /** * @dev Deploys a new contract via calling the `CREATE` opcode and using the creation * bytecode `initCode` and `msg.value` as inputs. In order to save deployment costs, * we do not sanity check the `initCode` length. Note that if `msg.value` is non-zero, * `initCode` must have a `payable` constructor. * @param initCode The creation bytecode. * @return newContract The 20-byte address where the contract was deployed. */ function deployCreate(bytes memory initCode) public payable returns (address newContract) { assembly ("memory-safe") { newContract := create(callvalue(), add(initCode, 0x20), mload(initCode)) } _requireSuccessfulContractCreation({newContract: newContract}); emit ContractCreation({newContract: newContract}); } /** * @dev Deploys and initialises a new contract via calling the `CREATE` opcode and using the * creation bytecode `initCode`, the initialisation code `data`, the struct for the `payable` * amounts `values`, the refund address `refundAddress`, and `msg.value` as inputs. In order to * save deployment costs, we do not sanity check the `initCode` length. Note that if `values.constructorAmount` * is non-zero, `initCode` must have a `payable` constructor. * @param initCode The creation bytecode. * @param data The initialisation code that is passed to the deployed contract. * @param values The specific `payable` amounts for the deployment and initialisation call. * @param refundAddress The 20-byte address where any excess ether is returned to. * @return newContract The 20-byte address where the contract was deployed. * @custom:security This function allows for reentrancy, however we refrain from adding * a mutex lock to keep it as use-case agnostic as possible. Please ensure at the protocol * level that potentially malicious reentrant calls do not affect your smart contract system. */ function deployCreateAndInit( bytes memory initCode, bytes memory data, Values memory values, address refundAddress ) public payable returns (address newContract) { assembly ("memory-safe") { newContract := create(mload(values), add(initCode, 0x20), mload(initCode)) } _requireSuccessfulContractCreation({newContract: newContract}); emit ContractCreation({newContract: newContract}); (bool success, bytes memory returnData) = newContract.call{value: values.initCallAmount}(data); if (!success) { revert FailedContractInitialisation({emitter: _SELF, revertData: returnData}); } if (_SELF.balance != 0) { // Any wei amount previously forced into this contract (e.g. by using the `SELFDESTRUCT` // opcode) will be part of the refund transaction. (success, returnData) = refundAddress.call{value: _SELF.balance}(""); if (!success) { revert FailedEtherTransfer({emitter: _SELF, revertData: returnData}); } } } /** * @dev Deploys and initialises a new contract via calling the `CREATE` opcode and using the * creation bytecode `initCode`, the initialisation code `data`, the struct for the `payable` * amounts `values`, and `msg.value` as inputs. In order to save deployment costs, we do not * sanity check the `initCode` length. Note that if `values.constructorAmount` is non-zero, * `initCode` must have a `payable` constructor, and any excess ether is returned to `msg.sender`. * @param initCode The creation bytecode. * @param data The initialisation code that is passed to the deployed contract. * @param values The specific `payable` amounts for the deployment and initialisation call. * @return newContract The 20-byte address where the contract was deployed. * @custom:security This function allows for reentrancy, however we refrain from adding * a mutex lock to keep it as use-case agnostic as possible. Please ensure at the protocol * level that potentially malicious reentrant calls do not affect your smart contract system. */ function deployCreateAndInit( bytes memory initCode, bytes memory data, Values memory values ) public payable returns (address newContract) { newContract = deployCreateAndInit({initCode: initCode, data: data, values: values, refundAddress: msg.sender}); } /** * @dev Deploys a new EIP-1167 minimal proxy contract using the `CREATE` opcode, and initialises * the implementation contract using the implementation address `implementation`, the initialisation * code `data`, and `msg.value` as inputs. Note that if `msg.value` is non-zero, the initialiser * function called via `data` must be `payable`. * @param implementation The 20-byte implementation contract address. * @param data The initialisation code that is passed to the deployed proxy contract. * @return proxy The 20-byte address where the clone was deployed. * @custom:security This function allows for reentrancy, however we refrain from adding * a mutex lock to keep it as use-case agnostic as possible. Please ensure at the protocol * level that potentially malicious reentrant calls do not affect your smart contract system. */ function deployCreateClone(address implementation, bytes memory data) public payable returns (address proxy) { bytes20 implementationInBytes = bytes20(implementation); assembly ("memory-safe") { let clone := mload(0x40) mstore( clone, hex"3d_60_2d_80_60_0a_3d_39_81_f3_36_3d_3d_37_3d_3d_3d_36_3d_73_00_00_00_00_00_00_00_00_00_00_00_00" ) mstore(add(clone, 0x14), implementationInBytes) mstore( add(clone, 0x28), hex"5a_f4_3d_82_80_3e_90_3d_91_60_2b_57_fd_5b_f3_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00" ) proxy := create(0, clone, 0x37) } if (proxy == address(0)) { revert FailedContractCreation({emitter: _SELF}); } emit ContractCreation({newContract: proxy}); (bool success, bytes memory returnData) = proxy.call{value: msg.value}(data); _requireSuccessfulContractInitialisation({ success: success, returnData: returnData, implementation: implementation }); } /** * @dev Returns the address where a contract will be stored if deployed via `deployer` using * the `CREATE` opcode. For the specification of the Recursive Length Prefix (RLP) encoding * scheme, please refer to p. 19 of the Ethereum Yellow Paper (https://web.archive.org/web/20230921110603/https://ethereum.github.io/yellowpaper/paper.pdf) * and the Ethereum Wiki (https://web.archive.org/web/20230921112807/https://ethereum.org/en/developers/docs/data-structures-and-encoding/rlp/). * For further insights also, see the following issue: https://web.archive.org/web/20230921112943/https://github.com/transmissions11/solmate/issues/207. * * Based on the EIP-161 (https://web.archive.org/web/20230921113207/https://raw.githubusercontent.com/ethereum/EIPs/master/EIPS/eip-161.md) specification, * all contract accounts on the Ethereum mainnet are initiated with `nonce = 1`. Thus, the * first contract address created by another contract is calculated with a non-zero nonce. * @param deployer The 20-byte deployer address. * @param nonce The next 32-byte nonce of the deployer address. * @return computedAddress The 20-byte address where a contract will be stored. */ function computeCreateAddress(address deployer, uint256 nonce) public view returns (address computedAddress) { bytes memory data; bytes1 len = bytes1(0x94); // The theoretical allowed limit, based on EIP-2681, for an account nonce is 2**64-2: // https://web.archive.org/web/20230921113252/https://eips.ethereum.org/EIPS/eip-2681. if (nonce > type(uint64).max - 1) { revert InvalidNonceValue({emitter: _SELF}); } // The integer zero is treated as an empty byte string and therefore has only one length prefix, // 0x80, which is calculated via 0x80 + 0. if (nonce == 0x00) { data = abi.encodePacked(bytes1(0xd6), len, deployer, bytes1(0x80)); } // A one-byte integer in the [0x00, 0x7f] range uses its own value as a length prefix, there is no // additional "0x80 + length" prefix that precedes it. else if (nonce <= 0x7f) { data = abi.encodePacked(bytes1(0xd6), len, deployer, uint8(nonce)); } // In the case of `nonce > 0x7f` and `nonce <= type(uint8).max`, we have the following encoding scheme // (the same calculation can be carried over for higher nonce bytes): // 0xda = 0xc0 (short RLP prefix) + 0x1a (= the bytes length of: 0x94 + address + 0x84 + nonce, in hex), // 0x94 = 0x80 + 0x14 (= the bytes length of an address, 20 bytes, in hex), // 0x84 = 0x80 + 0x04 (= the bytes length of the nonce, 4 bytes, in hex). else if (nonce <= type(uint8).max) { data = abi.encodePacked(bytes1(0xd7), len, deployer, bytes1(0x81), uint8(nonce)); } else if (nonce <= type(uint16).max) { data = abi.encodePacked(bytes1(0xd8), len, deployer, bytes1(0x82), uint16(nonce)); } else if (nonce <= type(uint24).max) { data = abi.encodePacked(bytes1(0xd9), len, deployer, bytes1(0x83), uint24(nonce)); } else if (nonce <= type(uint32).max) { data = abi.encodePacked(bytes1(0xda), len, deployer, bytes1(0x84), uint32(nonce)); } else if (nonce <= type(uint40).max) { data = abi.encodePacked(bytes1(0xdb), len, deployer, bytes1(0x85), uint40(nonce)); } else if (nonce <= type(uint48).max) { data = abi.encodePacked(bytes1(0xdc), len, deployer, bytes1(0x86), uint48(nonce)); } else if (nonce <= type(uint56).max) { data = abi.encodePacked(bytes1(0xdd), len, deployer, bytes1(0x87), uint56(nonce)); } else { data = abi.encodePacked(bytes1(0xde), len, deployer, bytes1(0x88), uint64(nonce)); } computedAddress = address(uint160(uint256(keccak256(data)))); } /** * @dev Returns the address where a contract will be stored if deployed via this contract * using the `CREATE` opcode. For the specification of the Recursive Length Prefix (RLP) * encoding scheme, please refer to p. 19 of the Ethereum Yellow Paper (https://web.archive.org/web/20230921110603/https://ethereum.github.io/yellowpaper/paper.pdf) * and the Ethereum Wiki (https://web.archive.org/web/20230921112807/https://ethereum.org/en/developers/docs/data-structures-and-encoding/rlp/). * For further insights also, see the following issue: https://web.archive.org/web/20230921112943/https://github.com/transmissions11/solmate/issues/207. * * Based on the EIP-161 (https://web.archive.org/web/20230921113207/https://raw.githubusercontent.com/ethereum/EIPs/master/EIPS/eip-161.md) specification, * all contract accounts on the Ethereum mainnet are initiated with `nonce = 1`. Thus, the * first contract address created by another contract is calculated with a non-zero nonce. * @param nonce The next 32-byte nonce of this contract. * @return computedAddress The 20-byte address where a contract will be stored. */ function computeCreateAddress(uint256 nonce) public view returns (address computedAddress) { computedAddress = computeCreateAddress({deployer: _SELF, nonce: nonce}); } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* CREATE2 */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /** * @dev Deploys a new contract via calling the `CREATE2` opcode and using the salt value `salt`, * the creation bytecode `initCode`, and `msg.value` as inputs. In order to save deployment costs, * we do not sanity check the `initCode` length. Note that if `msg.value` is non-zero, `initCode` * must have a `payable` constructor. * @param salt The 32-byte random value used to create the contract address. * @param initCode The creation bytecode. * @return newContract The 20-byte address where the contract was deployed. */ function deployCreate2(bytes32 salt, bytes memory initCode) public payable returns (address newContract) { bytes32 guardedSalt = _guard({salt: salt}); assembly ("memory-safe") { newContract := create2(callvalue(), add(initCode, 0x20), mload(initCode), guardedSalt) } _requireSuccessfulContractCreation({newContract: newContract}); emit ContractCreation({newContract: newContract, salt: guardedSalt}); } /** * @dev Deploys a new contract via calling the `CREATE2` opcode and using the creation bytecode * `initCode` and `msg.value` as inputs. The salt value is calculated pseudo-randomly using a * diverse selection of block and transaction properties. This approach does not guarantee true * randomness! In order to save deployment costs, we do not sanity check the `initCode` length. * Note that if `msg.value` is non-zero, `initCode` must have a `payable` constructor. * @param initCode The creation bytecode. * @return newContract The 20-byte address where the contract was deployed. */ function deployCreate2(bytes memory initCode) public payable returns (address newContract) { // Note that the safeguarding function `_guard` is called as part of the overloaded function // `deployCreate2`. newContract = deployCreate2({salt: _generateSalt(), initCode: initCode}); } /** * @dev Deploys and initialises a new contract via calling the `CREATE2` opcode and using the * salt value `salt`, the creation bytecode `initCode`, the initialisation code `data`, the struct * for the `payable` amounts `values`, the refund address `refundAddress`, and `msg.value` as inputs. * In order to save deployment costs, we do not sanity check the `initCode` length. Note that if * `values.constructorAmount` is non-zero, `initCode` must have a `payable` constructor. * @param salt The 32-byte random value used to create the contract address. * @param initCode The creation bytecode. * @param data The initialisation code that is passed to the deployed contract. * @param values The specific `payable` amounts for the deployment and initialisation call. * @param refundAddress The 20-byte address where any excess ether is returned to. * @return newContract The 20-byte address where the contract was deployed. * @custom:security This function allows for reentrancy, however we refrain from adding * a mutex lock to keep it as use-case agnostic as possible. Please ensure at the protocol * level that potentially malicious reentrant calls do not affect your smart contract system. */ function deployCreate2AndInit( bytes32 salt, bytes memory initCode, bytes memory data, Values memory values, address refundAddress ) public payable returns (address newContract) { bytes32 guardedSalt = _guard({salt: salt}); assembly ("memory-safe") { newContract := create2(mload(values), add(initCode, 0x20), mload(initCode), guardedSalt) } _requireSuccessfulContractCreation({newContract: newContract}); emit ContractCreation({newContract: newContract, salt: guardedSalt}); (bool success, bytes memory returnData) = newContract.call{value: values.initCallAmount}(data); if (!success) { revert FailedContractInitialisation({emitter: _SELF, revertData: returnData}); } if (_SELF.balance != 0) { // Any wei amount previously forced into this contract (e.g. by using the `SELFDESTRUCT` // opcode) will be part of the refund transaction. (success, returnData) = refundAddress.call{value: _SELF.balance}(""); if (!success) { revert FailedEtherTransfer({emitter: _SELF, revertData: returnData}); } } } /** * @dev Deploys and initialises a new contract via calling the `CREATE2` opcode and using the * salt value `salt`, creation bytecode `initCode`, the initialisation code `data`, the struct for * the `payable` amounts `values`, and `msg.value` as inputs. In order to save deployment costs, * we do not sanity check the `initCode` length. Note that if `values.constructorAmount` is non-zero, * `initCode` must have a `payable` constructor, and any excess ether is returned to `msg.sender`. * @param salt The 32-byte random value used to create the contract address. * @param initCode The creation bytecode. * @param data The initialisation code that is passed to the deployed contract. * @param values The specific `payable` amounts for the deployment and initialisation call. * @return newContract The 20-byte address where the contract was deployed. * @custom:security This function allows for reentrancy, however we refrain from adding * a mutex lock to keep it as use-case agnostic as possible. Please ensure at the protocol * level that potentially malicious reentrant calls do not affect your smart contract system. */ function deployCreate2AndInit( bytes32 salt, bytes memory initCode, bytes memory data, Values memory values ) public payable returns (address newContract) { // Note that the safeguarding function `_guard` is called as part of the overloaded function // `deployCreate2AndInit`. newContract = deployCreate2AndInit({ salt: salt, initCode: initCode, data: data, values: values, refundAddress: msg.sender }); } /** * @dev Deploys and initialises a new contract via calling the `CREATE2` opcode and using the * creation bytecode `initCode`, the initialisation code `data`, the struct for the `payable` * amounts `values`, the refund address `refundAddress`, and `msg.value` as inputs. The salt value * is calculated pseudo-randomly using a diverse selection of block and transaction properties. * This approach does not guarantee true randomness! In order to save deployment costs, we do not * sanity check the `initCode` length. Note that if `values.constructorAmount` is non-zero, `initCode` * must have a `payable` constructor. * @param initCode The creation bytecode. * @param data The initialisation code that is passed to the deployed contract. * @param values The specific `payable` amounts for the deployment and initialisation call. * @param refundAddress The 20-byte address where any excess ether is returned to. * @return newContract The 20-byte address where the contract was deployed. * @custom:security This function allows for reentrancy, however we refrain from adding * a mutex lock to keep it as use-case agnostic as possible. Please ensure at the protocol * level that potentially malicious reentrant calls do not affect your smart contract system. */ function deployCreate2AndInit( bytes memory initCode, bytes memory data, Values memory values, address refundAddress ) public payable returns (address newContract) { // Note that the safeguarding function `_guard` is called as part of the overloaded function // `deployCreate2AndInit`. newContract = deployCreate2AndInit({ salt: _generateSalt(), initCode: initCode, data: data, values: values, refundAddress: refundAddress }); } /** * @dev Deploys and initialises a new contract via calling the `CREATE2` opcode and using the * creation bytecode `initCode`, the initialisation code `data`, the struct for the `payable` amounts * `values`, and `msg.value` as inputs. The salt value is calculated pseudo-randomly using a * diverse selection of block and transaction properties. This approach does not guarantee true * randomness! In order to save deployment costs, we do not sanity check the `initCode` length. * Note that if `values.constructorAmount` is non-zero, `initCode` must have a `payable` constructor, * and any excess ether is returned to `msg.sender`. * @param initCode The creation bytecode. * @param data The initialisation code that is passed to the deployed contract. * @param values The specific `payable` amounts for the deployment and initialisation call. * @return newContract The 20-byte address where the contract was deployed. * @custom:security This function allows for reentrancy, however we refrain from adding * a mutex lock to keep it as use-case agnostic as possible. Please ensure at the protocol * level that potentially malicious reentrant calls do not affect your smart contract system. */ function deployCreate2AndInit( bytes memory initCode, bytes memory data, Values memory values ) public payable returns (address newContract) { // Note that the safeguarding function `_guard` is called as part of the overloaded function // `deployCreate2AndInit`. newContract = deployCreate2AndInit({ salt: _generateSalt(), initCode: initCode, data: data, values: values, refundAddress: msg.sender }); } /** * @dev Deploys a new EIP-1167 minimal proxy contract using the `CREATE2` opcode and the salt * value `salt`, and initialises the implementation contract using the implementation address * `implementation`, the initialisation code `data`, and `msg.value` as inputs. Note that if * `msg.value` is non-zero, the initialiser function called via `data` must be `payable`. * @param salt The 32-byte random value used to create the proxy contract address. * @param implementation The 20-byte implementation contract address. * @param data The initialisation code that is passed to the deployed proxy contract. * @return proxy The 20-byte address where the clone was deployed. * @custom:security This function allows for reentrancy, however we refrain from adding * a mutex lock to keep it as use-case agnostic as possible. Please ensure at the protocol * level that potentially malicious reentrant calls do not affect your smart contract system. */ function deployCreate2Clone( bytes32 salt, address implementation, bytes memory data ) public payable returns (address proxy) { bytes32 guardedSalt = _guard({salt: salt}); bytes20 implementationInBytes = bytes20(implementation); assembly ("memory-safe") { let clone := mload(0x40) mstore( clone, hex"3d_60_2d_80_60_0a_3d_39_81_f3_36_3d_3d_37_3d_3d_3d_36_3d_73_00_00_00_00_00_00_00_00_00_00_00_00" ) mstore(add(clone, 0x14), implementationInBytes) mstore( add(clone, 0x28), hex"5a_f4_3d_82_80_3e_90_3d_91_60_2b_57_fd_5b_f3_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00" ) proxy := create2(0, clone, 0x37, guardedSalt) } if (proxy == address(0)) { revert FailedContractCreation({emitter: _SELF}); } emit ContractCreation({newContract: proxy, salt: guardedSalt}); (bool success, bytes memory returnData) = proxy.call{value: msg.value}(data); _requireSuccessfulContractInitialisation({ success: success, returnData: returnData, implementation: implementation }); } /** * @dev Deploys a new EIP-1167 minimal proxy contract using the `CREATE2` opcode and the salt * value `salt`, and initialises the implementation contract using the implementation address * `implementation`, the initialisation code `data`, and `msg.value` as inputs. The salt value is * calculated pseudo-randomly using a diverse selection of block and transaction properties. This * approach does not guarantee true randomness! Note that if `msg.value` is non-zero, the initialiser * function called via `data` must be `payable`. * @param implementation The 20-byte implementation contract address. * @param data The initialisation code that is passed to the deployed proxy contract. * @return proxy The 20-byte address where the clone was deployed. * @custom:security This function allows for reentrancy, however we refrain from adding * a mutex lock to keep it as use-case agnostic as possible. Please ensure at the protocol * level that potentially malicious reentrant calls do not affect your smart contract system. */ function deployCreate2Clone(address implementation, bytes memory data) public payable returns (address proxy) { // Note that the safeguarding function `_guard` is called as part of the overloaded function // `deployCreate2Clone`. proxy = deployCreate2Clone({salt: _generateSalt(), implementation: implementation, data: data}); } /** * @dev Returns the address where a contract will be stored if deployed via `deployer` using * the `CREATE2` opcode. Any change in the `initCodeHash` or `salt` values will result in a new * destination address. This implementation is based on OpenZeppelin: * https://web.archive.org/web/20230921113703/https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/181d518609a9f006fcb97af63e6952e603cf100e/contracts/utils/Create2.sol. * @param salt The 32-byte random value used to create the contract address. * @param initCodeHash The 32-byte bytecode digest of the contract creation bytecode. * @param deployer The 20-byte deployer address. * @return computedAddress The 20-byte address where a contract will be stored. */ function computeCreate2Address( bytes32 salt, bytes32 initCodeHash, address deployer ) public pure returns (address computedAddress) { assembly ("memory-safe") { // | | ↓ ptr ... ↓ ptr + 0x0B (start) ... ↓ ptr + 0x20 ... ↓ ptr + 0x40 ... | // |----------------------|---------------------------------------------------------------------------| // | initCodeHash | CCCCCCCCCCCCC...CC | // | salt | BBBBBBBBBBBBB...BB | // | deployer | 000000...0000AAAAAAAAAAAAAAAAAAA...AA | // | 0xFF | FF | // |----------------------|---------------------------------------------------------------------------| // | memory | 000000...00FFAAAAAAAAAAAAAAAAAAA...AABBBBBBBBBBBBB...BBCCCCCCCCCCCCC...CC | // | keccak256(start, 85) | ↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑ | let ptr := mload(0x40) mstore(add(ptr, 0x40), initCodeHash) mstore(add(ptr, 0x20), salt) mstore(ptr, deployer) let start := add(ptr, 0x0b) mstore8(start, 0xff) computedAddress := keccak256(start, 85) } } /** * @dev Returns the address where a contract will be stored if deployed via this contract using * the `CREATE2` opcode. Any change in the `initCodeHash` or `salt` values will result in a new * destination address. * @param salt The 32-byte random value used to create the contract address. * @param initCodeHash The 32-byte bytecode digest of the contract creation bytecode. * @return computedAddress The 20-byte address where a contract will be stored. */ function computeCreate2Address(bytes32 salt, bytes32 initCodeHash) public view returns (address computedAddress) { computedAddress = computeCreate2Address({salt: salt, initCodeHash: initCodeHash, deployer: _SELF}); } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* CREATE3 */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /** * @dev Deploys a new contract via employing the `CREATE3` pattern (i.e. without an initcode * factor) and using the salt value `salt`, the creation bytecode `initCode`, and `msg.value` * as inputs. In order to save deployment costs, we do not sanity check the `initCode` length. * Note that if `msg.value` is non-zero, `initCode` must have a `payable` constructor. This * implementation is based on Solmate: * https://web.archive.org/web/20230921113832/https://raw.githubusercontent.com/transmissions11/solmate/e8f96f25d48fe702117ce76c79228ca4f20206cb/src/utils/CREATE3.sol. * @param salt The 32-byte random value used to create the proxy contract address. * @param initCode The creation bytecode. * @return newContract The 20-byte address where the contract was deployed. * @custom:security We strongly recommend implementing a permissioned deploy protection by setting * the first 20 bytes equal to `msg.sender` in the `salt` to prevent maliciously intended frontrun * proxy deployments on other chains. */ function deployCreate3(bytes32 salt, bytes memory initCode) public payable returns (address newContract) { bytes32 guardedSalt = _guard({salt: salt}); bytes memory proxyChildBytecode = hex"67_36_3d_3d_37_36_3d_34_f0_3d_52_60_08_60_18_f3"; address proxy; assembly ("memory-safe") { proxy := create2(0, add(proxyChildBytecode, 32), mload(proxyChildBytecode), guardedSalt) } if (proxy == address(0)) { revert FailedContractCreation({emitter: _SELF}); } emit Create3ProxyContractCreation({newContract: proxy, salt: guardedSalt}); newContract = computeCreate3Address({salt: guardedSalt}); (bool success, ) = proxy.call{value: msg.value}(initCode); _requireSuccessfulContractCreation({success: success, newContract: newContract}); emit ContractCreation({newContract: newContract}); } /** * @dev Deploys a new contract via employing the `CREATE3` pattern (i.e. without an initcode * factor) and using the salt value `salt`, the creation bytecode `initCode`, and `msg.value` * as inputs. The salt value is calculated pseudo-randomly using a diverse selection of block * and transaction properties. This approach does not guarantee true randomness! In order to save * deployment costs, we do not sanity check the `initCode` length. Note that if `msg.value` is * non-zero, `initCode` must have a `payable` constructor. This implementation is based on Solmate: * https://web.archive.org/web/20230921113832/https://raw.githubusercontent.com/transmissions11/solmate/e8f96f25d48fe702117ce76c79228ca4f20206cb/src/utils/CREATE3.sol. * @param initCode The creation bytecode. * @return newContract The 20-byte address where the contract was deployed. */ function deployCreate3(bytes memory initCode) public payable returns (address newContract) { // Note that the safeguarding function `_guard` is called as part of the overloaded function // `deployCreate3`. newContract = deployCreate3({salt: _generateSalt(), initCode: initCode}); } /** * @dev Deploys and initialises a new contract via employing the `CREATE3` pattern (i.e. without * an initcode factor) and using the salt value `salt`, the creation bytecode `initCode`, the * initialisation code `data`, the struct for the `payable` amounts `values`, the refund address * `refundAddress`, and `msg.value` as inputs. In order to save deployment costs, we do not sanity * check the `initCode` length. Note that if `values.constructorAmount` is non-zero, `initCode` must * have a `payable` constructor. This implementation is based on Solmate: * https://web.archive.org/web/20230921113832/https://raw.githubusercontent.com/transmissions11/solmate/e8f96f25d48fe702117ce76c79228ca4f20206cb/src/utils/CREATE3.sol. * @param salt The 32-byte random value used to create the proxy contract address. * @param initCode The creation bytecode. * @param data The initialisation code that is passed to the deployed contract. * @param values The specific `payable` amounts for the deployment and initialisation call. * @param refundAddress The 20-byte address where any excess ether is returned to. * @return newContract The 20-byte address where the contract was deployed. * @custom:security This function allows for reentrancy, however we refrain from adding * a mutex lock to keep it as use-case agnostic as possible. Please ensure at the protocol * level that potentially malicious reentrant calls do not affect your smart contract system. * Furthermore, we strongly recommend implementing a permissioned deploy protection by setting * the first 20 bytes equal to `msg.sender` in the `salt` to prevent maliciously intended frontrun * proxy deployments on other chains. */ function deployCreate3AndInit( bytes32 salt, bytes memory initCode, bytes memory data, Values memory values, address refundAddress ) public payable returns (address newContract) { bytes32 guardedSalt = _guard({salt: salt}); bytes memory proxyChildBytecode = hex"67_36_3d_3d_37_36_3d_34_f0_3d_52_60_08_60_18_f3"; address proxy; assembly ("memory-safe") { proxy := create2(0, add(proxyChildBytecode, 32), mload(proxyChildBytecode), guardedSalt) } if (proxy == address(0)) { revert FailedContractCreation({emitter: _SELF}); } emit Create3ProxyContractCreation({newContract: proxy, salt: guardedSalt}); newContract = computeCreate3Address({salt: guardedSalt}); (bool success, ) = proxy.call{value: values.constructorAmount}(initCode); _requireSuccessfulContractCreation({success: success, newContract: newContract}); emit ContractCreation({newContract: newContract}); bytes memory returnData; (success, returnData) = newContract.call{value: values.initCallAmount}(data); if (!success) { revert FailedContractInitialisation({emitter: _SELF, revertData: returnData}); } if (_SELF.balance != 0) { // Any wei amount previously forced into this contract (e.g. by using the `SELFDESTRUCT` // opcode) will be part of the refund transaction. (success, returnData) = refundAddress.call{value: _SELF.balance}(""); if (!success) { revert FailedEtherTransfer({emitter: _SELF, revertData: returnData}); } } } /** * @dev Deploys and initialises a new contract via employing the `CREATE3` pattern (i.e. without * an initcode factor) and using the salt value `salt`, the creation bytecode `initCode`, the * initialisation code `data`, the struct for the `payable` amounts `values`, and `msg.value` as * inputs. In order to save deployment costs, we do not sanity check the `initCode` length. Note * that if `values.constructorAmount` is non-zero, `initCode` must have a `payable` constructor, * and any excess ether is returned to `msg.sender`. This implementation is based on Solmate: * https://web.archive.org/web/20230921113832/https://raw.githubusercontent.com/transmissions11/solmate/e8f96f25d48fe702117ce76c79228ca4f20206cb/src/utils/CREATE3.sol. * @param salt The 32-byte random value used to create the proxy contract address. * @param initCode The creation bytecode. * @param data The initialisation code that is passed to the deployed contract. * @param values The specific `payable` amounts for the deployment and initialisation call. * @return newContract The 20-byte address where the contract was deployed. * @custom:security This function allows for reentrancy, however we refrain from adding * a mutex lock to keep it as use-case agnostic as possible. Please ensure at the protocol * level that potentially malicious reentrant calls do not affect your smart contract system. * Furthermore, we strongly recommend implementing a permissioned deploy protection by setting * the first 20 bytes equal to `msg.sender` in the `salt` to prevent maliciously intended frontrun * proxy deployments on other chains. */ function deployCreate3AndInit( bytes32 salt, bytes memory initCode, bytes memory data, Values memory values ) public payable returns (address newContract) { // Note that the safeguarding function `_guard` is called as part of the overloaded function // `deployCreate3AndInit`. newContract = deployCreate3AndInit({ salt: salt, initCode: initCode, data: data, values: values, refundAddress: msg.sender }); } /** * @dev Deploys and initialises a new contract via employing the `CREATE3` pattern (i.e. without * an initcode factor) and using the creation bytecode `initCode`, the initialisation code `data`, * the struct for the `payable` amounts `values`, the refund address `refundAddress`, and `msg.value` * as inputs. The salt value is calculated pseudo-randomly using a diverse selection of block and * transaction properties. This approach does not guarantee true randomness! In order to save deployment * costs, we do not sanity check the `initCode` length. Note that if `values.constructorAmount` is non-zero, * `initCode` must have a `payable` constructor. This implementation is based on Solmate: * https://web.archive.org/web/20230921113832/https://raw.githubusercontent.com/transmissions11/solmate/e8f96f25d48fe702117ce76c79228ca4f20206cb/src/utils/CREATE3.sol. * @param initCode The creation bytecode. * @param data The initialisation code that is passed to the deployed contract. * @param values The specific `payable` amounts for the deployment and initialisation call. * @param refundAddress The 20-byte address where any excess ether is returned to. * @return newContract The 20-byte address where the contract was deployed. * @custom:security This function allows for reentrancy, however we refrain from adding * a mutex lock to keep it as use-case agnostic as possible. Please ensure at the protocol * level that potentially malicious reentrant calls do not affect your smart contract system. */ function deployCreate3AndInit( bytes memory initCode, bytes memory data, Values memory values, address refundAddress ) public payable returns (address newContract) { // Note that the safeguarding function `_guard` is called as part of the overloaded function // `deployCreate3AndInit`. newContract = deployCreate3AndInit({ salt: _generateSalt(), initCode: initCode, data: data, values: values, refundAddress: refundAddress }); } /** * @dev Deploys and initialises a new contract via employing the `CREATE3` pattern (i.e. without * an initcode factor) and using the creation bytecode `initCode`, the initialisation code `data`, * the struct for the `payable` amounts `values`, `msg.value` as inputs. The salt value is calculated * pseudo-randomly using a diverse selection of block and transaction properties. This approach does * not guarantee true randomness! In order to save deployment costs, we do not sanity check the `initCode` * length. Note that if `values.constructorAmount` is non-zero, `initCode` must have a `payable` constructor, * and any excess ether is returned to `msg.sender`. This implementation is based on Solmate: * https://web.archive.org/web/20230921113832/https://raw.githubusercontent.com/transmissions11/solmate/e8f96f25d48fe702117ce76c79228ca4f20206cb/src/utils/CREATE3.sol. * @param initCode The creation bytecode. * @param data The initialisation code that is passed to the deployed contract. * @param values The specific `payable` amounts for the deployment and initialisation call. * @return newContract The 20-byte address where the contract was deployed. * @custom:security This function allows for reentrancy, however we refrain from adding * a mutex lock to keep it as use-case agnostic as possible. Please ensure at the protocol * level that potentially malicious reentrant calls do not affect your smart contract system. */ function deployCreate3AndInit( bytes memory initCode, bytes memory data, Values memory values ) public payable returns (address newContract) { // Note that the safeguarding function `_guard` is called as part of the overloaded function // `deployCreate3AndInit`. newContract = deployCreate3AndInit({ salt: _generateSalt(), initCode: initCode, data: data, values: values, refundAddress: msg.sender }); } /** * @dev Returns the address where a contract will be stored if deployed via `deployer` using * the `CREATE3` pattern (i.e. without an initcode factor). Any change in the `salt` value will * result in a new destination address. This implementation is based on Solady: * https://web.archive.org/web/20230921114120/https://raw.githubusercontent.com/Vectorized/solady/1c1ac4ad9c8558001e92d8d1a7722ef67bec75df/src/utils/CREATE3.sol. * @param salt The 32-byte random value used to create the proxy contract address. * @param deployer The 20-byte deployer address. * @return computedAddress The 20-byte address where a contract will be stored. */ function computeCreate3Address(bytes32 salt, address deployer) public pure returns (address computedAddress) { assembly ("memory-safe") { let ptr := mload(0x40) mstore(0x00, deployer) mstore8(0x0b, 0xff) mstore(0x20, salt) mstore( 0x40, hex"21_c3_5d_be_1b_34_4a_24_88_cf_33_21_d6_ce_54_2f_8e_9f_30_55_44_ff_09_e4_99_3a_62_31_9a_49_7c_1f" ) mstore(0x14, keccak256(0x0b, 0x55)) mstore(0x40, ptr) mstore(0x00, 0xd694) mstore8(0x34, 0x01) computedAddress := keccak256(0x1e, 0x17) } } /** * @dev Returns the address where a contract will be stored if deployed via this contract using * the `CREATE3` pattern (i.e. without an initcode factor). Any change in the `salt` value will * result in a new destination address. This implementation is based on Solady: * https://web.archive.org/web/20230921114120/https://raw.githubusercontent.com/Vectorized/solady/1c1ac4ad9c8558001e92d8d1a7722ef67bec75df/src/utils/CREATE3.sol. * @param salt The 32-byte random value used to create the proxy contract address. * @return computedAddress The 20-byte address where a contract will be stored. */ function computeCreate3Address(bytes32 salt) public view returns (address computedAddress) { computedAddress = computeCreate3Address({salt: salt, deployer: _SELF}); } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* HELPER FUNCTIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /** * @dev Implements different safeguarding mechanisms depending on the encoded values in the salt * (`||` stands for byte-wise concatenation): * => salt (32 bytes) = 0xbebebebebebebebebebebebebebebebebebebebe||ff||1212121212121212121212 * - The first 20 bytes (i.e. `bebebebebebebebebebebebebebebebebebebebe`) may be used to * implement a permissioned deploy protection by setting them equal to `msg.sender`, * - The 21st byte (i.e. `ff`) may be used to implement a cross-chain redeploy protection by * setting it equal to `0x01`, * - The last random 11 bytes (i.e. `1212121212121212121212`) allow for 2**88 bits of entropy * for mining a salt. * @param salt The 32-byte random value used to create the contract address. * @return guardedSalt The guarded 32-byte random value used to create the contract address. */ function _guard(bytes32 salt) internal view returns (bytes32 guardedSalt) { (SenderBytes senderBytes, RedeployProtectionFlag redeployProtectionFlag) = _parseSalt({salt: salt}); if (senderBytes == SenderBytes.MsgSender && redeployProtectionFlag == RedeployProtectionFlag.True) { // Configures a permissioned deploy protection as well as a cross-chain redeploy protection. guardedSalt = keccak256(abi.encode(msg.sender, block.chainid, salt)); } else if (senderBytes == SenderBytes.MsgSender && redeployProtectionFlag == RedeployProtectionFlag.False) { // Configures solely a permissioned deploy protection. guardedSalt = _efficientHash({a: bytes32(uint256(uint160(msg.sender))), b: salt}); } else if (senderBytes == SenderBytes.MsgSender) { // Reverts if the 21st byte is greater than `0x01` in order to enforce developer explicitness. revert InvalidSalt({emitter: _SELF}); } else if (senderBytes == SenderBytes.ZeroAddress && redeployProtectionFlag == RedeployProtectionFlag.True) { // Configures solely a cross-chain redeploy protection. In order to prevent a pseudo-randomly // generated cross-chain redeploy protection, we enforce the zero address check for the first 20 bytes. guardedSalt = _efficientHash({a: bytes32(block.chainid), b: salt}); } else if ( senderBytes == SenderBytes.ZeroAddress && redeployProtectionFlag == RedeployProtectionFlag.Unspecified ) { // Reverts if the 21st byte is greater than `0x01` in order to enforce developer explicitness. revert InvalidSalt({emitter: _SELF}); } else { // For the non-pseudo-random cases, the salt value `salt` is hashed to prevent the safeguard mechanisms // from being bypassed. Otherwise, the salt value `salt` is not modified. guardedSalt = (salt != _generateSalt()) ? keccak256(abi.encode(salt)) : salt; } } /** * @dev Returns the enum for the selection of a permissioned deploy protection as well as a * cross-chain redeploy protection. * @param salt The 32-byte random value used to create the contract address. * @return senderBytes The 8-byte enum for the selection of a permissioned deploy protection. * @return redeployProtectionFlag The 8-byte enum for the selection of a cross-chain redeploy * protection. */ function _parseSalt( bytes32 salt ) internal view returns (SenderBytes senderBytes, RedeployProtectionFlag redeployProtectionFlag) { if (address(bytes20(salt)) == msg.sender && bytes1(salt[20]) == hex"01") { (senderBytes, redeployProtectionFlag) = (SenderBytes.MsgSender, RedeployProtectionFlag.True); } else if (address(bytes20(salt)) == msg.sender && bytes1(salt[20]) == hex"00") { (senderBytes, redeployProtectionFlag) = (SenderBytes.MsgSender, RedeployProtectionFlag.False); } else if (address(bytes20(salt)) == msg.sender) { (senderBytes, redeployProtectionFlag) = (SenderBytes.MsgSender, RedeployProtectionFlag.Unspecified); } else if (address(bytes20(salt)) == address(0) && bytes1(salt[20]) == hex"01") { (senderBytes, redeployProtectionFlag) = (SenderBytes.ZeroAddress, RedeployProtectionFlag.True); } else if (address(bytes20(salt)) == address(0) && bytes1(salt[20]) == hex"00") { (senderBytes, redeployProtectionFlag) = (SenderBytes.ZeroAddress, RedeployProtectionFlag.False); } else if (address(bytes20(salt)) == address(0)) { (senderBytes, redeployProtectionFlag) = (SenderBytes.ZeroAddress, RedeployProtectionFlag.Unspecified); } else if (bytes1(salt[20]) == hex"01") { (senderBytes, redeployProtectionFlag) = (SenderBytes.Random, RedeployProtectionFlag.True); } else if (bytes1(salt[20]) == hex"00") { (senderBytes, redeployProtectionFlag) = (SenderBytes.Random, RedeployProtectionFlag.False); } else { (senderBytes, redeployProtectionFlag) = (SenderBytes.Random, RedeployProtectionFlag.Unspecified); } } /** * @dev Returns the `keccak256` hash of `a` and `b` after concatenation. * @param a The first 32-byte value to be concatenated and hashed. * @param b The second 32-byte value to be concatenated and hashed. * @return hash The 32-byte `keccak256` hash of `a` and `b`. */ function _efficientHash(bytes32 a, bytes32 b) internal pure returns (bytes32 hash) { assembly ("memory-safe") { mstore(0x00, a) mstore(0x20, b) hash := keccak256(0x00, 0x40) } } /** * @dev Generates pseudo-randomly a salt value using a diverse selection of block and * transaction properties. * @return salt The 32-byte pseudo-random salt value. */ function _generateSalt() internal view returns (bytes32 salt) { unchecked { salt = keccak256( abi.encode( // We don't use `block.number - 256` (the maximum value on the EVM) to accommodate // any chains that may try to reduce the amount of available historical block hashes. // We also don't subtract 1 to mitigate any risks arising from consecutive block // producers on a PoS chain. Therefore, we use `block.number - 32` as a reasonable // compromise, one we expect should work on most chains, which is 1 epoch on Ethereum // mainnet. Please note that if you use this function between the genesis block and block // number 31, the block property `blockhash` will return zero, but the returned salt value // `salt` will still have a non-zero value due to the hashing characteristic and the other // remaining properties. blockhash(block.number - 32), block.coinbase, block.number, block.timestamp, block.prevrandao, block.chainid, msg.sender ) ); } } /** * @dev Ensures that `newContract` is a non-zero byte contract. * @param success The Boolean success condition. * @param newContract The 20-byte address where the contract was deployed. */ function _requireSuccessfulContractCreation(bool success, address newContract) internal view { // Note that reverting if `newContract == address(0)` isn't strictly necessary here, as if // the deployment fails, `success == false` should already hold. However, since the `CreateX` // contract should be usable and safe on a wide range of chains, this check is cheap enough // that there is no harm in including it (security > gas optimisations). It can potentially // protect against unexpected chain behaviour or a hypothetical compiler bug that doesn't surface // the call success status properly. if (!success || newContract == address(0) || newContract.code.length == 0) { revert FailedContractCreation({emitter: _SELF}); } } /** * @dev Ensures that `newContract` is a non-zero byte contract. * @param newContract The 20-byte address where the contract was deployed. */ function _requireSuccessfulContractCreation(address newContract) internal view { if (newContract == address(0) || newContract.code.length == 0) { revert FailedContractCreation({emitter: _SELF}); } } /** * @dev Ensures that the contract initialisation call to `implementation` has been successful. * @param success The Boolean success condition. * @param returnData The return data from the contract initialisation call. * @param implementation The 20-byte address where the implementation was deployed. */ function _requireSuccessfulContractInitialisation( bool success, bytes memory returnData, address implementation ) internal view { if (!success || implementation.code.length == 0) { revert FailedContractInitialisation({emitter: _SELF, revertData: returnData}); } } }
{ "optimizer": { "enabled": true, "runs": 10000000 }, "evmVersion": "paris", "viaIR": false, "metadata": { "bytecodeHash": "none" }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
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CreateX.Values","name":"values","type":"tuple"},{"internalType":"address","name":"refundAddress","type":"address"}],"name":"deployCreate3AndInit","outputs":[{"internalType":"address","name":"newContract","type":"address"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes","name":"initCode","type":"bytes"},{"internalType":"bytes","name":"data","type":"bytes"},{"components":[{"internalType":"uint256","name":"constructorAmount","type":"uint256"},{"internalType":"uint256","name":"initCallAmount","type":"uint256"}],"internalType":"struct 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CreateX.Values","name":"values","type":"tuple"}],"name":"deployCreateAndInit","outputs":[{"internalType":"address","name":"newContract","type":"address"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes","name":"initCode","type":"bytes"},{"internalType":"bytes","name":"data","type":"bytes"},{"components":[{"internalType":"uint256","name":"constructorAmount","type":"uint256"},{"internalType":"uint256","name":"initCallAmount","type":"uint256"}],"internalType":"struct CreateX.Values","name":"values","type":"tuple"},{"internalType":"address","name":"refundAddress","type":"address"}],"name":"deployCreateAndInit","outputs":[{"internalType":"address","name":"newContract","type":"address"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"implementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"deployCreateClone","outputs":[{"internalType":"address","name":"proxy","type":"address"}],"stateMutability":"payable","type":"function"}]
Contract Creation Code
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.