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Minimal Proxy Contract for 0x00fc4bb5349f1104d3252c36c308688651e3eb1f
Contract Name:
PercentSplitETH
Compiler Version
v0.8.12+commit.f00d7308
Optimization Enabled:
Yes with 1337 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
/* ・ * ★ ・ 。 ・ ゚☆ 。 * ★ ゚・。 * 。 * ☆ 。・゚*.。 ゚ *.。☆。★ ・ ` .-:::::-.` `-::---...``` `-:` .:+ssssoooo++//:.` .-/+shhhhhhhhhhhhhyyyssooo: .--::. .+ossso+/////++/:://-` .////+shhhhhhhhhhhhhhhhhhhhhy `-----::. `/+////+++///+++/:--:/+/- -////+shhhhhhhhhhhhhhhhhhhhhy `------:::-` `//-.``.-/+ooosso+:-.-/oso- -////+shhhhhhhhhhhhhhhhhhhhhy .--------:::-` :+:.` .-/osyyyyyyso++syhyo.-////+shhhhhhhhhhhhhhhhhhhhhy `-----------:::-. +o+:-.-:/oyhhhhhhdhhhhhdddy:-////+shhhhhhhhhhhhhhhhhhhhhy .------------::::-- `oys+/::/+shhhhhhhdddddddddy/-////+shhhhhhhhhhhhhhhhhhhhhy .--------------:::::-` +ys+////+yhhhhhhhddddddddhy:-////+yhhhhhhhhhhhhhhhhhhhhhy `----------------::::::-`.ss+/:::+oyhhhhhhhhhhhhhhho`-////+shhhhhhhhhhhhhhhhhhhhhy .------------------:::::::.-so//::/+osyyyhhhhhhhhhys` -////+shhhhhhhhhhhhhhhhhhhhhy `.-------------------::/:::::..+o+////+oosssyyyyyyys+` .////+shhhhhhhhhhhhhhhhhhhhhy .--------------------::/:::.` -+o++++++oooosssss/. `-//+shhhhhhhhhhhhhhhhhhhhyo .------- ``````.......--` `-/+ooooosso+/-` `./++++///:::--...``hhhhyo ````` * ・ 。 ・ ゚☆ 。 * ★ ゚・。 * 。 * ☆ 。・゚*.。 ゚ *.。☆。★ ・ * ゚。·*・。 ゚* ☆゚・。°*. ゚ ・ ゚*。・゚★。 ・ *゚。 * ・゚*。★・ ☆∴。 * ・ 。 */ // SPDX-License-Identifier: MIT OR Apache-2.0 pragma solidity ^0.8.0; import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"; import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol"; import "@openzeppelin/contracts/utils/math/SafeMath.sol"; import "@openzeppelin/contracts/proxy/Clones.sol"; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "./interfaces/IERC20Approve.sol"; import "./interfaces/IERC20IncreaseAllowance.sol"; import "./libraries/BytesLibrary.sol"; /** * @title Auto-forward ETH to a pre-determined list of addresses. * @notice Deploys contracts which auto-forwards any ETH sent to it to a list of recipients * considering their percent share of the payment received. * @dev Uses create2 counterfactual addresses so that the destination is known from the terms of the split. */ contract PercentSplitETH is Initializable { using AddressUpgradeable for address payable; using AddressUpgradeable for address; using BytesLibrary for bytes; using SafeMath for uint256; /// @notice A representation of shares using 16-bits for efficient storage. /// @dev This is only used internally. struct ShareCompressed { address payable recipient; uint16 percentInBasisPoints; } /// @notice A representation of shares using 256-bits to ease integration. struct Share { address payable recipient; uint256 percentInBasisPoints; } uint256 private constant BASIS_POINTS = 10000; ShareCompressed[] private _shares; /** * @notice Emitted when a new percent split contract is created from this factory. * @param contractAddress The address of the new percent split contract. */ event PercentSplitCreated(address indexed contractAddress); /** * @notice Emitted for each share of the split being defined. * @param recipient The address of the recipient when payment to the split is received. * @param percentInBasisPoints The percent of the payment received by the recipient, in basis points. */ event PercentSplitShare(address indexed recipient, uint256 percentInBasisPoints); /** * @notice Emitted when ETH is transferred to a recipient through this split contract. * @param account The account which received payment. * @param amount The amount of ETH payment sent to this recipient. */ event ETHTransferred(address indexed account, uint256 amount); /** * @notice Emitted when an ERC20 token is transferred to a recipient through this split contract. * @param erc20Contract The address of the ERC20 token contract. * @param account The account which received payment. * @param amount The amount of ERC20 tokens sent to this recipient. */ event ERC20Transferred(address indexed erc20Contract, address indexed account, uint256 amount); /** * @dev Requires that the msg.sender is one of the recipients in this split. */ modifier onlyRecipient() { for (uint256 i = 0; i < _shares.length; ++i) { if (_shares[i].recipient == msg.sender) { _; return; } } revert("Split: Can only be called by one of the recipients"); } /** * @notice Creates a new minimal proxy contract and initializes it with the given split terms. * If the contract had already been created, its address is returned. * This must be called on the original implementation and not a proxy created previously. */ function createSplit(Share[] memory shares) external returns (PercentSplitETH splitInstance) { bytes32 salt = keccak256(abi.encode(shares)); address clone = Clones.predictDeterministicAddress(address(this), salt); splitInstance = PercentSplitETH(payable(clone)); if (!clone.isContract()) { emit PercentSplitCreated(clone); Clones.cloneDeterministic(address(this), salt); splitInstance.initialize(shares); } } /** * @notice Returns the address for the proxy contract which would represent the given split terms. * @dev The contract may or may not already be deployed at the address returned. * Ensure that it is deployed before sending funds to this address. */ function getPredictedSplitAddress(Share[] memory shares) external view returns (address) { bytes32 salt = keccak256(abi.encode(shares)); return Clones.predictDeterministicAddress(address(this), salt); } /** * @notice Called once to configure the contract after the initial deployment. * @dev This will be called by `createSplit` after deploying the proxy so it should never be called directly. */ function initialize(Share[] memory shares) external initializer { require(shares.length >= 2, "Split: Too few recipients"); require(shares.length <= 5, "Split: Too many recipients"); uint256 total; unchecked { // The array length cannot overflow 256 bits. for (uint256 i = 0; i < shares.length; ++i) { require(shares[i].percentInBasisPoints < BASIS_POINTS, "Split: Share must be less than 100%"); // Require above ensures total will not overlow. total += shares[i].percentInBasisPoints; _shares.push( ShareCompressed({ recipient: shares[i].recipient, percentInBasisPoints: uint16(shares[i].percentInBasisPoints) }) ); emit PercentSplitShare(shares[i].recipient, shares[i].percentInBasisPoints); } } require(total == BASIS_POINTS, "Split: Total amount must equal 100%"); } /** * @notice Returns a tuple with the terms of this split. */ function getShares() external view returns (Share[] memory shares) { shares = new Share[](_shares.length); for (uint256 i = 0; i < shares.length; ++i) { shares[i] = Share({ recipient: _shares[i].recipient, percentInBasisPoints: _shares[i].percentInBasisPoints }); } } /** * @notice Returns how many recipients are part of this split. */ function getShareLength() external view returns (uint256) { return _shares.length; } /** * @notice Returns a recipient in this split. */ function getShareRecipientByIndex(uint256 index) external view returns (address payable) { return _shares[index].recipient; } /** * @notice Returns a recipient's percent share in basis points. */ function getPercentInBasisPointsByIndex(uint256 index) external view returns (uint256) { return _shares[index].percentInBasisPoints; } /** * @notice Forwards any ETH received to the recipients in this split. * @dev Each recipient increases the gas required to split * and contract recipients may significantly increase the gas required. */ receive() external payable { _splitETH(msg.value); } /** * @notice Allows any ETH stored by the contract to be split among recipients. * @dev Normally ETH is forwarded as it comes in, but a balance in this contract * is possible if it was sent before the contract was created or if self destruct was used. */ function splitETH() external { _splitETH(address(this).balance); } function _splitETH(uint256 value) private { if (value != 0) { uint256 totalSent; uint256 amountToSend; unchecked { for (uint256 i = _shares.length - 1; i != 0; i--) { ShareCompressed memory share = _shares[i]; amountToSend = (value * share.percentInBasisPoints) / BASIS_POINTS; totalSent += amountToSend; share.recipient.sendValue(amountToSend); emit ETHTransferred(share.recipient, amountToSend); } // Favor the 1st recipient if there are any rounding issues amountToSend = value - totalSent; } _shares[0].recipient.sendValue(amountToSend); emit ETHTransferred(_shares[0].recipient, amountToSend); } } /** * @notice Anyone can call this function to split all available tokens at the provided address between the recipients. * @dev This contract is built to split ETH payments. The ability to attempt to split ERC20 tokens is here * just in case tokens were also sent so that they don't get locked forever in the contract. */ function splitERC20Tokens(IERC20 erc20Contract) external { require(_splitERC20Tokens(erc20Contract), "Split: ERC20 split failed"); } function _splitERC20Tokens(IERC20 erc20Contract) private returns (bool) { try erc20Contract.balanceOf(address(this)) returns (uint256 balance) { if (balance == 0) { return false; } uint256 amountToSend; uint256 totalSent; unchecked { for (uint256 i = _shares.length - 1; i != 0; i--) { ShareCompressed memory share = _shares[i]; bool success; (success, amountToSend) = balance.tryMul(share.percentInBasisPoints); if (!success) { return false; } amountToSend /= BASIS_POINTS; totalSent += amountToSend; try erc20Contract.transfer(share.recipient, amountToSend) { emit ERC20Transferred(address(erc20Contract), share.recipient, amountToSend); } catch { return false; } } // Favor the 1st recipient if there are any rounding issues amountToSend = balance - totalSent; } try erc20Contract.transfer(_shares[0].recipient, amountToSend) { emit ERC20Transferred(address(erc20Contract), _shares[0].recipient, amountToSend); } catch { return false; } return true; } catch { return false; } } /** * @notice Allows the split recipients to make an arbitrary contract call. * @dev This is provided to allow recovering from unexpected scenarios, * such as receiving an NFT at this address. * * It will first attempt a fair split of ERC20 tokens before proceeding. * * This contract is built to split ETH payments. The ability to attempt to make other calls is here * just in case other assets were also sent so that they don't get locked forever in the contract. */ function proxyCall(address payable target, bytes memory callData) external onlyRecipient { require( !callData.startsWith(type(IERC20Approve).interfaceId) && !callData.startsWith(type(IERC20IncreaseAllowance).interfaceId), "Split: ERC20 tokens must be split" ); _splitERC20Tokens(IERC20(target)); target.functionCall(callData); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (proxy/utils/Initializable.sol) pragma solidity ^0.8.0; import "../../utils/AddressUpgradeable.sol"; /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. * * [CAUTION] * ==== * Avoid leaving a contract uninitialized. * * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation * contract, which may impact the proxy. To initialize the implementation contract, you can either invoke the * initializer manually, or you can include a constructor to automatically mark it as initialized when it is deployed: * * [.hljs-theme-light.nopadding] * ``` * /// @custom:oz-upgrades-unsafe-allow constructor * constructor() initializer {} * ``` * ==== */ abstract contract Initializable { /** * @dev Indicates that the contract has been initialized. */ bool private _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private _initializing; /** * @dev Modifier to protect an initializer function from being invoked twice. */ modifier initializer() { // If the contract is initializing we ignore whether _initialized is set in order to support multiple // inheritance patterns, but we only do this in the context of a constructor, because in other contexts the // contract may have been reentered. require(_initializing ? _isConstructor() : !_initialized, "Initializable: contract is already initialized"); bool isTopLevelCall = !_initializing; if (isTopLevelCall) { _initializing = true; _initialized = true; } _; if (isTopLevelCall) { _initializing = false; } } /** * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the * {initializer} modifier, directly or indirectly. */ modifier onlyInitializing() { require(_initializing, "Initializable: contract is not initializing"); _; } function _isConstructor() private view returns (bool) { return !AddressUpgradeable.isContract(address(this)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library AddressUpgradeable { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/math/SafeMath.sol) pragma solidity ^0.8.0; // CAUTION // This version of SafeMath should only be used with Solidity 0.8 or later, // because it relies on the compiler's built in overflow checks. /** * @dev Wrappers over Solidity's arithmetic operations. * * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler * now has built in overflow checking. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { return a + b; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return a - b; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { return a * b; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return a % b; } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b <= a, errorMessage); return a - b; } } /** * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a / b; } } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a % b; } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (proxy/Clones.sol) pragma solidity ^0.8.0; /** * @dev https://eips.ethereum.org/EIPS/eip-1167[EIP 1167] is a standard for * deploying minimal proxy contracts, also known as "clones". * * > To simply and cheaply clone contract functionality in an immutable way, this standard specifies * > a minimal bytecode implementation that delegates all calls to a known, fixed address. * * The library includes functions to deploy a proxy using either `create` (traditional deployment) or `create2` * (salted deterministic deployment). It also includes functions to predict the addresses of clones deployed using the * deterministic method. * * _Available since v3.4._ */ library Clones { /** * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`. * * This function uses the create opcode, which should never revert. */ function clone(address implementation) internal returns (address instance) { assembly { let ptr := mload(0x40) mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000) mstore(add(ptr, 0x14), shl(0x60, implementation)) mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000) instance := create(0, ptr, 0x37) } require(instance != address(0), "ERC1167: create failed"); } /** * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`. * * This function uses the create2 opcode and a `salt` to deterministically deploy * the clone. Using the same `implementation` and `salt` multiple time will revert, since * the clones cannot be deployed twice at the same address. */ function cloneDeterministic(address implementation, bytes32 salt) internal returns (address instance) { assembly { let ptr := mload(0x40) mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000) mstore(add(ptr, 0x14), shl(0x60, implementation)) mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000) instance := create2(0, ptr, 0x37, salt) } require(instance != address(0), "ERC1167: create2 failed"); } /** * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}. */ function predictDeterministicAddress( address implementation, bytes32 salt, address deployer ) internal pure returns (address predicted) { assembly { let ptr := mload(0x40) mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000) mstore(add(ptr, 0x14), shl(0x60, implementation)) mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf3ff00000000000000000000000000000000) mstore(add(ptr, 0x38), shl(0x60, deployer)) mstore(add(ptr, 0x4c), salt) mstore(add(ptr, 0x6c), keccak256(ptr, 0x37)) predicted := keccak256(add(ptr, 0x37), 0x55) } } /** * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}. */ function predictDeterministicAddress(address implementation, bytes32 salt) internal view returns (address predicted) { return predictDeterministicAddress(implementation, salt, address(this)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 amount ) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); }
// SPDX-License-Identifier: MIT OR Apache-2.0 pragma solidity ^0.8.0; interface IERC20Approve { function approve(address spender, uint256 amount) external returns (bool); }
// SPDX-License-Identifier: MIT OR Apache-2.0 pragma solidity ^0.8.0; interface IERC20IncreaseAllowance { function increaseAllowance(address spender, uint256 addedValue) external returns (bool); }
// SPDX-License-Identifier: MIT OR Apache-2.0 pragma solidity ^0.8.0; error BytesLibrary_Expected_Address_Not_Found(); /** * @title A library for manipulation of byte arrays. */ library BytesLibrary { /** * @dev Replace the address at the given location in a byte array if the contents at that location * match the expected address. */ function replaceAtIf( bytes memory data, uint256 startLocation, address expectedAddress, address newAddress ) internal pure { bytes memory expectedData = abi.encodePacked(expectedAddress); bytes memory newData = abi.encodePacked(newAddress); unchecked { // An address is 20 bytes long for (uint256 i = 0; i < 20; ++i) { uint256 dataLocation = startLocation + i; if (data[dataLocation] != expectedData[i]) { revert BytesLibrary_Expected_Address_Not_Found(); } data[dataLocation] = newData[i]; } } } /** * @dev Checks if the call data starts with the given function signature. */ function startsWith(bytes memory callData, bytes4 functionSig) internal pure returns (bool) { // A signature is 4 bytes long if (callData.length < 4) { return false; } unchecked { for (uint256 i = 0; i < 4; ++i) { if (callData[i] != functionSig[i]) { return false; } } } return true; } }
{ "optimizer": { "enabled": true, "runs": 1337 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "metadata": { "useLiteralContent": true }, "libraries": {} }
[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"erc20Contract","type":"address"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"ERC20Transferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"ETHTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"contractAddress","type":"address"}],"name":"PercentSplitCreated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"percentInBasisPoints","type":"uint256"}],"name":"PercentSplitShare","type":"event"},{"inputs":[{"components":[{"internalType":"address payable","name":"recipient","type":"address"},{"internalType":"uint256","name":"percentInBasisPoints","type":"uint256"}],"internalType":"struct PercentSplitETH.Share[]","name":"shares","type":"tuple[]"}],"name":"createSplit","outputs":[{"internalType":"contract PercentSplitETH","name":"splitInstance","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"getPercentInBasisPointsByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"address payable","name":"recipient","type":"address"},{"internalType":"uint256","name":"percentInBasisPoints","type":"uint256"}],"internalType":"struct PercentSplitETH.Share[]","name":"shares","type":"tuple[]"}],"name":"getPredictedSplitAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getShareLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"getShareRecipientByIndex","outputs":[{"internalType":"address payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getShares","outputs":[{"components":[{"internalType":"address payable","name":"recipient","type":"address"},{"internalType":"uint256","name":"percentInBasisPoints","type":"uint256"}],"internalType":"struct PercentSplitETH.Share[]","name":"shares","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"address payable","name":"recipient","type":"address"},{"internalType":"uint256","name":"percentInBasisPoints","type":"uint256"}],"internalType":"struct PercentSplitETH.Share[]","name":"shares","type":"tuple[]"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"target","type":"address"},{"internalType":"bytes","name":"callData","type":"bytes"}],"name":"proxyCall","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"erc20Contract","type":"address"}],"name":"splitERC20Tokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"splitETH","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]
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Multichain Portfolio | 26 Chains
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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.