creation_sourcecode: {{
    "language": "Solidity",
    "sources": {
      "src/LockDrop.sol": {
        "content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity 0.8.24;\n\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\";\nimport \"@openzeppelin/contracts/utils/Pausable.sol\";\nimport {Address} from \"@openzeppelin/contracts/utils/Address.sol\";\n\ninterface BridgeInterface {\n    /**\n     * @dev reference: https://github.com/ethereum-optimism/optimism/blob/65ec61dde94ffa93342728d324fecf474d228e1f/packages/contracts-bedrock/contracts/L1/L1StandardBridge.sol#L188\n     */\n    function depositERC20To(\n        address _l1Token,\n        address _l2Token,\n        address _to,\n        uint256 _amount,\n        uint32 _minGasLimit,\n        bytes calldata _extraData\n    ) external;\n\n    /**\n     * @dev reference: https://github.com/ethereum-optimism/optimism/blob/65ec61dde94ffa93342728d324fecf474d228e1f/packages/contracts-bedrock/contracts/L1/L1StandardBridge.sol#L137\n     */\n    function depositETHTo(address _to, uint32 _minGasLimit, bytes calldata _extraData) external payable;\n}\n\n/**\n * @title LockDrop Contract\n * @dev This contract allows users to deposit ERC20 tokens or Ether within a specified time time.\n * It provides functionalities for bridging tokens between Layer 1 (L1) and Layer 2 (L2) networks.\n * Users can also withdraw their deposited tokens after the max lock time ends.\n */\ncontract LockDrop is Ownable, Pausable {\n    using SafeERC20 for IERC20;\n    using Address for address payable;\n\n    // Events\n    event TokenAllowed(address token, TokenInfo info);\n    event TokenDataChange(address l1Token, address l2Token, address l1Bridge);\n    event BridgeAddress(address bridgeAddress);\n    event WithdrawalTimeUpdated(uint256 endTime);\n    event Deposit(address indexed depositOwner, address indexed token, uint256 amount, uint256 depositTime);\n    event WithdrawToL1(address indexed owner, address indexed token, uint256 amount);\n    event WithdrawToL2(\n        address indexed owner, address indexed receiver, address indexed l1Token, address l2Token, uint256 amount\n    );\n    event SavedToken(address indexed user, address indexed token, uint256 amount);\n\n    // Struct to hold token information.\n    struct TokenInfo {\n        bool isAllowed; // Flag indicating whether the token is allowed for deposit.\n        address l2TokenAddress; // Address of the corresponding token on Layer 2.\n        address l1BridgeAddressOverride; // Optional address to use for bridging to L2.\n    }\n\n    // Struct to hold L1 and L2 token addresses.\n    struct TokenBridgingData {\n        address l1TokenAddress;\n        address l2TokenAddress;\n        address l1BridgeAddressOverride;\n    }\n\n    // Struct to hold token information.\n    struct SaveTokenData {\n        address user; // user to send the funds to\n        address token; // token to send\n        uint256 amount; // amount to send\n    }\n\n    // State variables\n    mapping(address => TokenInfo) public allowedTokens; // Mapping to track allowed ERC20 tokens and their corresponding L2 addresses.\n    mapping(address => mapping(address => uint256)) public deposits; // Mapping to store deposit data: user address => token address => deposit amount.\n    mapping(address => uint256) public totalDeposits; // Mapping to track total deposit amount per token address. Used for refunds in case of bridging failure.\n    uint256 public withdrawalStartTime; // Start time for withdrawal\n    address public bridgeProxyAddress; // Address of the bridge contract for L1-L2 token transfers\n\n    // Constant representing the Ethereum token address.\n    address public constant ETH_TOKEN_ADDRESS = address(0x00);\n\n    /**\n     * @dev Constructor\n     * @param setWithdrawalStartTime Withdrawal start time\n     * @param allowTokens Array of addresses representing ERC20 tokens to be allowed for deposit\n     * @param initialOwner Address of the initial owner of the contract.\n     */\n    constructor(uint256 setWithdrawalStartTime, address[] memory allowTokens, address initialOwner)\n        Ownable(initialOwner)\n    {\n        require(setWithdrawalStartTime > block.timestamp, \"Withdrawal start time can't be historical\");\n        withdrawalStartTime = setWithdrawalStartTime;\n\n        for (uint256 tokenId = 0; tokenId < allowTokens.length; tokenId++) {\n            _allow(allowTokens[tokenId], address(0x00), address(0x00));\n        }\n        // allow eth by default\n        _allow(ETH_TOKEN_ADDRESS, address(0x00), address(0x00));\n    }\n\n    /**\n     * @dev Modifier to check if deposit is allowed.\n     * @param amount Amount of tokens being deposited.\n     */\n    modifier isDepositAllowed(uint256 amount) {\n        require(!isWithdrawalTimeStarted(), \"Deposit time already ended\");\n        require(amount > 0, \"Amount Should Be Greater Than Zero\");\n        _;\n    }\n\n    /**\n     * @dev Deposit ERC20 tokens.\n     * @param token Address of the ERC20 token.\n     * @param amount Amount of tokens to deposit.\n     */\n    function depositERC20(address token, uint256 amount) external isDepositAllowed(amount) whenNotPaused {\n        require(allowedTokens[token].isAllowed, \"Deposit token not allowed\");\n\n        deposits[msg.sender][token] += amount;\n        totalDeposits[token] += amount;\n        // Transfer tokens to contract\n        IERC20(token).safeTransferFrom(msg.sender, address(this), amount);\n        // Emit Deposit event\n        emit Deposit(msg.sender, token, amount, block.timestamp);\n    }\n\n    /**\n     * @dev Deposit Ether\n     * Allows users to deposit Ether into the contract.\n     */\n    function depositEth() external payable isDepositAllowed(msg.value) whenNotPaused {\n        // Increase the deposited Ether amount for the sender.\n        deposits[msg.sender][ETH_TOKEN_ADDRESS] += msg.value;\n        totalDeposits[ETH_TOKEN_ADDRESS] += msg.value;\n        // Emit Deposit Event\n        emit Deposit(msg.sender, ETH_TOKEN_ADDRESS, msg.value, block.timestamp);\n    }\n\n    /**\n     * @dev Function to withdraw ERC20 tokens or Ether for a given deposit.\n     * @param token Address of the token to withdraw.\n     */\n    function withdrawSingleDepositToL1(address token) internal {\n        uint256 transferAmount = deposits[msg.sender][token];\n\n        require(transferAmount != 0, \"Withdrawal completed or token never deposited\");\n\n        deposits[msg.sender][token] = 0;\n        totalDeposits[token] -= transferAmount;\n\n        if (token == ETH_TOKEN_ADDRESS) {\n            // Note: we use openzeppelin's `sendValue` rather than `transfer` because\n            // `transfer` forwards a fixed amount of gas (2300), which may not be enough\n            // if msg.sender is a smart contract. We should be OK against reentrancy\n            // attacks since we follow the checks-effects-interactions pattern\n            payable(msg.sender).sendValue(transferAmount);\n        } else {\n            // Transfer ERC20 tokens to the sender.\n            IERC20(token).safeTransfer(msg.sender, transferAmount);\n        }\n        emit WithdrawToL1(msg.sender, token, transferAmount);\n    }\n\n    /**\n     * @dev Internal function to withdraw tokens to Layer 2.\n     * @param token Address of the token to withdraw.\n     * @param minGasLimit Minimum gas limit for each individual withdrawal transaction.\n     * @param receiver The receiver of the funds on L2.\n     */\n    function withdrawSingleDepositToL2(address token, uint32 minGasLimit, address receiver) internal {\n        uint256 transferAmount = deposits[msg.sender][token];\n\n        require(transferAmount != 0, \"Withdrawal completed or token never deposited\");\n\n        // Retrieve token information.\n        TokenInfo memory tokenInfo = allowedTokens[token];\n\n        // check l2 token address set.\n        require(token == ETH_TOKEN_ADDRESS || tokenInfo.l2TokenAddress != address(0x00), \"L2 token address not set\");\n\n        address bridgeAddress = bridgeProxyAddress;\n        if (tokenInfo.l1BridgeAddressOverride != address(0x00)) {\n            bridgeAddress = tokenInfo.l1BridgeAddressOverride;\n        }\n\n        deposits[msg.sender][token] = 0;\n        totalDeposits[token] -= transferAmount;\n\n        if (token == ETH_TOKEN_ADDRESS) {\n            // Bridge Ether to Layer 2.\n            BridgeInterface(bridgeAddress).depositETHTo{value: transferAmount}(receiver, minGasLimit, hex\"\");\n        } else {\n            // Approve tokens for transfer to the bridge.\n            IERC20(token).approve(bridgeAddress, transferAmount);\n            // Bridge ERC20 tokens to Layer 2.\n            BridgeInterface(bridgeAddress).depositERC20To(\n                token, tokenInfo.l2TokenAddress, receiver, transferAmount, minGasLimit, hex\"\"\n            );\n        }\n        emit WithdrawToL2(msg.sender, receiver, token, tokenInfo.l2TokenAddress, transferAmount);\n    }\n\n    /**\n     * @dev Function to withdraw all deposits to Layer 2 for multiple tokens.\n     * @param tokens Array of token addresses to withdraw.\n     * @param minGasLimit Minimum gas limit for the withdrawal transactions.\n     * @param receiver The receiver of the funds on L2.\n     */\n    function withdrawDepositsToL2(address[] memory tokens, uint32 minGasLimit, address receiver)\n        external\n        whenNotPaused\n    {\n        require(isWithdrawalTimeStarted(), \"Withdrawal not started\");\n        // check if bridge address set\n        require(bridgeProxyAddress != address(0x00), \"Bridge address not set\");\n\n        // Loop through each token and withdraw to Layer 2.\n        for (uint256 i = 0; i < tokens.length; i++) {\n            withdrawSingleDepositToL2(tokens[i], minGasLimit, receiver);\n        }\n    }\n\n    /**\n     * @dev Function to withdraw all deposits to Layer 1 for multiple tokens.\n     * @param tokens Array of token addresses to withdraw.\n     */\n    function withdrawDepositsToL1(address[] memory tokens) external {\n        require(isWithdrawalTimeStarted(), \"Withdrawal not started\");\n        // Loop through each token and withdraw to Layer 1.\n        for (uint256 i = 0; i < tokens.length; i++) {\n            withdrawSingleDepositToL1(tokens[i]);\n        }\n    }\n\n    /**\n     * @dev Function to allow ERC20 tokens for deposit.\n     * This function allows the contract owner to allow specific ERC20 tokens for deposit.\n     * @param l1TokenAddress Address of the ERC20 token to allow on Layer 1.\n     * @param l2TokenAddress Address of the corresponding token on Layer 2.\n     * @param l1BridgeAddressOverride Address of the corresponding bridge to use for this token.\n     *                                Can be 0 to use the default. This should be used for tokens\n     *                                that cannot use the L1StandardBridge contract. Note that the\n     *                                override is expected to implement the same BridgeInterface.\n     */\n    function allow(address l1TokenAddress, address l2TokenAddress, address l1BridgeAddressOverride)\n        external\n        onlyOwner\n    {\n        require(!isWithdrawalTimeStarted(), \"Withdrawal has started, token allowance cannot be modified\");\n        _allow(l1TokenAddress, l2TokenAddress, l1BridgeAddressOverride);\n    }\n\n    /**\n     * @dev Internal function to allow ERC20 tokens for deposit.\n     * This function updates the allowedTokens mapping with the provided token information.\n     * @param l1TokenAddress Address of the ERC20 token to allow.\n     * @param l2TokenAddress Address of the corresponding token on Layer 2.\n     * @param l1BridgeAddressOverride Address of the corresponding bridge to use for this token.\n     *                                Can be 0 to use the default.\n     */\n    function _allow(address l1TokenAddress, address l2TokenAddress, address l1BridgeAddressOverride) internal {\n        TokenInfo memory tokenInfo = TokenInfo(true, l2TokenAddress, l1BridgeAddressOverride);\n        allowedTokens[l1TokenAddress] = tokenInfo;\n        emit TokenAllowed(l1TokenAddress, tokenInfo);\n    }\n\n    /**\n     * @dev Function to change L2 address and the bridge address of tokens that were allowed for deposit.\n     * This function allows the contract owner to change the L2 address and the L1 bridge address for tokens\n     * that were previously allowed for deposit.\n     * @param tokenData An array of structs, each containing the Layer 1 (L1) token address, its (L1) bridge\n     *                     address, and its Layer 2 (L2) token address.\n     */\n    function changeMultipleL2TokenData(TokenBridgingData[] memory tokenData) external onlyOwner {\n        for (uint256 i = 0; i < tokenData.length; i++) {\n            TokenBridgingData memory token = tokenData[i];\n            // Ensure the token is allowed for deposit before changing its L2 address\n            require(allowedTokens[token.l1TokenAddress].isAllowed, \"Need to allow token before changing token data\");\n\n            // Update the L2 address of the token\n            allowedTokens[token.l1TokenAddress].l2TokenAddress = token.l2TokenAddress;\n            allowedTokens[token.l1TokenAddress].l1BridgeAddressOverride = token.l1BridgeAddressOverride;\n\n            emit TokenDataChange(token.l1TokenAddress, token.l2TokenAddress, token.l1BridgeAddressOverride);\n        }\n    }\n\n    /**\n     * @dev Function to change the withdrawal time.\n     * This function allows the contract owner to change the withdrawal time.\n     * @param newWithdrawalStartTime New withdrawal start time.\n     */\n    function changeWithdrawalTime(uint256 newWithdrawalStartTime) external onlyOwner {\n        require(block.timestamp < newWithdrawalStartTime, \"New timestamp can't be historical\");\n        require(\n            withdrawalStartTime > newWithdrawalStartTime, \"Withdrawal start time can only be decreased, not increased\"\n        );\n\n        withdrawalStartTime = newWithdrawalStartTime;\n        emit WithdrawalTimeUpdated(newWithdrawalStartTime);\n    }\n\n    /**\n     * @dev Function to set the address of the bridge proxy.\n     * This function allows the contract owner to set the address of the bridge proxy for token transfers between Layer 1 and Layer 2.\n     * @param l2BridgeProxyAddress Address of the bridge proxy contract.\n     */\n    function setBridgeProxyAddress(address l2BridgeProxyAddress) external onlyOwner {\n        bridgeProxyAddress = l2BridgeProxyAddress;\n        emit BridgeAddress(l2BridgeProxyAddress);\n    }\n\n    /**\n     * @dev This function allows the contract owner to recover ERC20 tokens that would\n     * otherwise stay locked in the contract forever.\n     * @param tokenData An array of structs containing information about the tokens to be saved.\n     */\n    function saveTokens(SaveTokenData[] calldata tokenData) external onlyOwner {\n        for (uint256 i = 0; i < tokenData.length; i++) {\n            saveToken(tokenData[i].user, tokenData[i].token, tokenData[i].amount);\n        }\n    }\n\n    /**\n     * @dev Internal function to recover an ERC20 token that would otherwise stay locked in\n     * the contract forever. This function transfers the specified amount of ERC20 token\n     * from the contract's balance to the specified user's address.\n     * @param user Address of the user to send the tokens to.\n     * @param token Address of the ERC20 token to be saved.\n     * @param amount Amount of tokens to be saved.\n     */\n    function saveToken(address user, address token, uint256 amount) internal {\n        require(\n            token != ETH_TOKEN_ADDRESS,\n            \"Only ERC20 tokens can be recovered, since eth bridging is supposed to be infallible\"\n        );\n\n        uint256 tokenBalance = IERC20(token).balanceOf(address(this));\n\n        require(tokenBalance >= totalDeposits[token] + amount, \"Insufficient balance to save token\");\n\n        IERC20(token).safeTransfer(user, amount);\n\n        emit SavedToken(user, token, amount);\n    }\n\n    /**\n     * @dev Function to pause contract. This calls the Pausable contract.\n     */\n    function pause() external onlyOwner {\n        super._pause();\n    }\n\n    /**\n     * @dev Function to unpause contract. This calls the Pausable contract.\n     */\n    function unpause() external onlyOwner {\n        super._unpause();\n    }\n\n    /**\n     * @dev Function to check if the withdrawal time has started.\n     * @return bool true if the withdrawal time has started, false otherwise.\n     */\n    function isWithdrawalTimeStarted() public view returns (bool) {\n        // Check if the withdrawal time has started.\n        return block.timestamp >= withdrawalStartTime;\n    }\n\n    /**\n     * @dev Get the Ether balance of the contract\n     * @return uint256 Ether balance of the contract\n     */\n    function getEthBalance() public view returns (uint256) {\n        return address(this).balance;\n    }\n\n    /**\n     * @dev Function to retrieve information about a token's allowance for deposit.\n     * @param token Address of the token to retrieve information for.\n     */\n    function getTokenInfo(address token) public view returns (TokenInfo memory) {\n        return allowedTokens[token];\n    }\n\n    /**\n     * @dev Get the deposited amount of a token for a given user\n     * @param depositOwner Address of the user\n     * @param token Address of the token\n     * @return uint256 Amount of tokens deposited\n     */\n    function getDepositAmount(address depositOwner, address token) public view returns (uint256) {\n        return deposits[depositOwner][token];\n    }\n\n    fallback() external payable {\n        revert(\"fallback not allowed\");\n    }\n\n    receive() external payable {\n        revert(\"receive not allowed\");\n    }\n}\n"
      },
      "lib/openzeppelin-contracts/contracts/access/Ownable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)\n\npragma solidity ^0.8.20;\n\nimport {Context} from \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * The initial owner is set to the address provided by the deployer. This can\n * later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract Ownable is Context {\n    address private _owner;\n\n    /**\n     * @dev The caller account is not authorized to perform an operation.\n     */\n    error OwnableUnauthorizedAccount(address account);\n\n    /**\n     * @dev The owner is not a valid owner account. (eg. `address(0)`)\n     */\n    error OwnableInvalidOwner(address owner);\n\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n    /**\n     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.\n     */\n    constructor(address initialOwner) {\n        if (initialOwner == address(0)) {\n            revert OwnableInvalidOwner(address(0));\n        }\n        _transferOwnership(initialOwner);\n    }\n\n    /**\n     * @dev Throws if called by any account other than the owner.\n     */\n    modifier onlyOwner() {\n        _checkOwner();\n        _;\n    }\n\n    /**\n     * @dev Returns the address of the current owner.\n     */\n    function owner() public view virtual returns (address) {\n        return _owner;\n    }\n\n    /**\n     * @dev Throws if the sender is not the owner.\n     */\n    function _checkOwner() internal view virtual {\n        if (owner() != _msgSender()) {\n            revert OwnableUnauthorizedAccount(_msgSender());\n        }\n    }\n\n    /**\n     * @dev Leaves the contract without owner. It will not be possible to call\n     * `onlyOwner` functions. Can only be called by the current owner.\n     *\n     * NOTE: Renouncing ownership will leave the contract without an owner,\n     * thereby disabling any functionality that is only available to the owner.\n     */\n    function renounceOwnership() public virtual onlyOwner {\n        _transferOwnership(address(0));\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Can only be called by the current owner.\n     */\n    function transferOwnership(address newOwner) public virtual onlyOwner {\n        if (newOwner == address(0)) {\n            revert OwnableInvalidOwner(address(0));\n        }\n        _transferOwnership(newOwner);\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Internal function without access restriction.\n     */\n    function _transferOwnership(address newOwner) internal virtual {\n        address oldOwner = _owner;\n        _owner = newOwner;\n        emit OwnershipTransferred(oldOwner, newOwner);\n    }\n}\n"
      },
      "lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol)\n\npragma solidity ^0.8.20;\n\nimport {IERC20} from \"../IERC20.sol\";\nimport {IERC20Permit} from \"../extensions/IERC20Permit.sol\";\nimport {Address} from \"../../../utils/Address.sol\";\n\n/**\n * @title SafeERC20\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\n * contract returns false). Tokens that return no value (and instead revert or\n * throw on failure) are also supported, non-reverting calls are assumed to be\n * successful.\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\n */\nlibrary SafeERC20 {\n    using Address for address;\n\n    /**\n     * @dev An operation with an ERC20 token failed.\n     */\n    error SafeERC20FailedOperation(address token);\n\n    /**\n     * @dev Indicates a failed `decreaseAllowance` request.\n     */\n    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);\n\n    /**\n     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,\n     * non-reverting calls are assumed to be successful.\n     */\n    function safeTransfer(IERC20 token, address to, uint256 value) internal {\n        _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));\n    }\n\n    /**\n     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the\n     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.\n     */\n    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {\n        _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));\n    }\n\n    /**\n     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,\n     * non-reverting calls are assumed to be successful.\n     */\n    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n        uint256 oldAllowance = token.allowance(address(this), spender);\n        forceApprove(token, spender, oldAllowance + value);\n    }\n\n    /**\n     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no\n     * value, non-reverting calls are assumed to be successful.\n     */\n    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {\n        unchecked {\n            uint256 currentAllowance = token.allowance(address(this), spender);\n            if (currentAllowance < requestedDecrease) {\n                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);\n            }\n            forceApprove(token, spender, currentAllowance - requestedDecrease);\n        }\n    }\n\n    /**\n     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,\n     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval\n     * to be set to zero before setting it to a non-zero value, such as USDT.\n     */\n    function forceApprove(IERC20 token, address spender, uint256 value) internal {\n        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));\n\n        if (!_callOptionalReturnBool(token, approvalCall)) {\n            _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));\n            _callOptionalReturn(token, approvalCall);\n        }\n    }\n\n    /**\n     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n     * on the return value: the return value is optional (but if data is returned, it must not be false).\n     * @param token The token targeted by the call.\n     * @param data The call data (encoded using abi.encode or one of its variants).\n     */\n    function _callOptionalReturn(IERC20 token, bytes memory data) private {\n        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that\n        // the target address contains contract code and also asserts for success in the low-level call.\n\n        bytes memory returndata = address(token).functionCall(data);\n        if (returndata.length != 0 && !abi.decode(returndata, (bool))) {\n            revert SafeERC20FailedOperation(address(token));\n        }\n    }\n\n    /**\n     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n     * on the return value: the return value is optional (but if data is returned, it must not be false).\n     * @param token The token targeted by the call.\n     * @param data The call data (encoded using abi.encode or one of its variants).\n     *\n     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.\n     */\n    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {\n        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false\n        // and not revert is the subcall reverts.\n\n        (bool success, bytes memory returndata) = address(token).call(data);\n        return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && address(token).code.length > 0;\n    }\n}\n"
      },
      "lib/openzeppelin-contracts/contracts/utils/Pausable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/Pausable.sol)\n\npragma solidity ^0.8.20;\n\nimport {Context} from \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which allows children to implement an emergency stop\n * mechanism that can be triggered by an authorized account.\n *\n * This module is used through inheritance. It will make available the\n * modifiers `whenNotPaused` and `whenPaused`, which can be applied to\n * the functions of your contract. Note that they will not be pausable by\n * simply including this module, only once the modifiers are put in place.\n */\nabstract contract Pausable is Context {\n    bool private _paused;\n\n    /**\n     * @dev Emitted when the pause is triggered by `account`.\n     */\n    event Paused(address account);\n\n    /**\n     * @dev Emitted when the pause is lifted by `account`.\n     */\n    event Unpaused(address account);\n\n    /**\n     * @dev The operation failed because the contract is paused.\n     */\n    error EnforcedPause();\n\n    /**\n     * @dev The operation failed because the contract is not paused.\n     */\n    error ExpectedPause();\n\n    /**\n     * @dev Initializes the contract in unpaused state.\n     */\n    constructor() {\n        _paused = false;\n    }\n\n    /**\n     * @dev Modifier to make a function callable only when the contract is not paused.\n     *\n     * Requirements:\n     *\n     * - The contract must not be paused.\n     */\n    modifier whenNotPaused() {\n        _requireNotPaused();\n        _;\n    }\n\n    /**\n     * @dev Modifier to make a function callable only when the contract is paused.\n     *\n     * Requirements:\n     *\n     * - The contract must be paused.\n     */\n    modifier whenPaused() {\n        _requirePaused();\n        _;\n    }\n\n    /**\n     * @dev Returns true if the contract is paused, and false otherwise.\n     */\n    function paused() public view virtual returns (bool) {\n        return _paused;\n    }\n\n    /**\n     * @dev Throws if the contract is paused.\n     */\n    function _requireNotPaused() internal view virtual {\n        if (paused()) {\n            revert EnforcedPause();\n        }\n    }\n\n    /**\n     * @dev Throws if the contract is not paused.\n     */\n    function _requirePaused() internal view virtual {\n        if (!paused()) {\n            revert ExpectedPause();\n        }\n    }\n\n    /**\n     * @dev Triggers stopped state.\n     *\n     * Requirements:\n     *\n     * - The contract must not be paused.\n     */\n    function _pause() internal virtual whenNotPaused {\n        _paused = true;\n        emit Paused(_msgSender());\n    }\n\n    /**\n     * @dev Returns to normal state.\n     *\n     * Requirements:\n     *\n     * - The contract must be paused.\n     */\n    function _unpause() internal virtual whenPaused {\n        _paused = false;\n        emit Unpaused(_msgSender());\n    }\n}\n"
      },
      "lib/openzeppelin-contracts/contracts/utils/Address.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n    /**\n     * @dev The ETH balance of the account is not enough to perform the operation.\n     */\n    error AddressInsufficientBalance(address account);\n\n    /**\n     * @dev There's no code at `target` (it is not a contract).\n     */\n    error AddressEmptyCode(address target);\n\n    /**\n     * @dev A call to an address target failed. The target may have reverted.\n     */\n    error FailedInnerCall();\n\n    /**\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n     * `recipient`, forwarding all available gas and reverting on errors.\n     *\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\n     * imposed by `transfer`, making them unable to receive funds via\n     * `transfer`. {sendValue} removes this limitation.\n     *\n     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n     *\n     * IMPORTANT: because control is transferred to `recipient`, care must be\n     * taken to not create reentrancy vulnerabilities. Consider using\n     * {ReentrancyGuard} or the\n     * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n     */\n    function sendValue(address payable recipient, uint256 amount) internal {\n        if (address(this).balance < amount) {\n            revert AddressInsufficientBalance(address(this));\n        }\n\n        (bool success, ) = recipient.call{value: amount}(\"\");\n        if (!success) {\n            revert FailedInnerCall();\n        }\n    }\n\n    /**\n     * @dev Performs a Solidity function call using a low level `call`. A\n     * plain `call` is an unsafe replacement for a function call: use this\n     * function instead.\n     *\n     * If `target` reverts with a revert reason or custom error, it is bubbled\n     * up by this function (like regular Solidity function calls). However, if\n     * the call reverted with no returned reason, this function reverts with a\n     * {FailedInnerCall} error.\n     *\n     * Returns the raw returned data. To convert to the expected return value,\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n     *\n     * Requirements:\n     *\n     * - `target` must be a contract.\n     * - calling `target` with `data` must not revert.\n     */\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but also transferring `value` wei to `target`.\n     *\n     * Requirements:\n     *\n     * - the calling contract must have an ETH balance of at least `value`.\n     * - the called Solidity function must be `payable`.\n     */\n    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n        if (address(this).balance < value) {\n            revert AddressInsufficientBalance(address(this));\n        }\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\n        return verifyCallResultFromTarget(target, success, returndata);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a static call.\n     */\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.staticcall(data);\n        return verifyCallResultFromTarget(target, success, returndata);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a delegate call.\n     */\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.delegatecall(data);\n        return verifyCallResultFromTarget(target, success, returndata);\n    }\n\n    /**\n     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target\n     * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an\n     * unsuccessful call.\n     */\n    function verifyCallResultFromTarget(\n        address target,\n        bool success,\n        bytes memory returndata\n    ) internal view returns (bytes memory) {\n        if (!success) {\n            _revert(returndata);\n        } else {\n            // only check if target is a contract if the call was successful and the return data is empty\n            // otherwise we already know that it was a contract\n            if (returndata.length == 0 && target.code.length == 0) {\n                revert AddressEmptyCode(target);\n            }\n            return returndata;\n        }\n    }\n\n    /**\n     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the\n     * revert reason or with a default {FailedInnerCall} error.\n     */\n    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {\n        if (!success) {\n            _revert(returndata);\n        } else {\n            return returndata;\n        }\n    }\n\n    /**\n     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.\n     */\n    function _revert(bytes memory returndata) private pure {\n        // Look for revert reason and bubble it up if present\n        if (returndata.length > 0) {\n            // The easiest way to bubble the revert reason is using memory via assembly\n            /// @solidity memory-safe-assembly\n            assembly {\n                let returndata_size := mload(returndata)\n                revert(add(32, returndata), returndata_size)\n            }\n        } else {\n            revert FailedInnerCall();\n        }\n    }\n}\n"
      },
      "lib/openzeppelin-contracts/contracts/utils/Context.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n    function _msgSender() internal view virtual returns (address) {\n        return msg.sender;\n    }\n\n    function _msgData() internal view virtual returns (bytes calldata) {\n        return msg.data;\n    }\n\n    function _contextSuffixLength() internal view virtual returns (uint256) {\n        return 0;\n    }\n}\n"
      },
      "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n    /**\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\n     * another (`to`).\n     *\n     * Note that `value` may be zero.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 value);\n\n    /**\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n     * a call to {approve}. `value` is the new allowance.\n     */\n    event Approval(address indexed owner, address indexed spender, uint256 value);\n\n    /**\n     * @dev Returns the value of tokens in existence.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns the value of tokens owned by `account`.\n     */\n    function balanceOf(address account) external view returns (uint256);\n\n    /**\n     * @dev Moves a `value` amount of tokens from the caller's account to `to`.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transfer(address to, uint256 value) external returns (bool);\n\n    /**\n     * @dev Returns the remaining number of tokens that `spender` will be\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\n     * zero by default.\n     *\n     * This value changes when {approve} or {transferFrom} are called.\n     */\n    function allowance(address owner, address spender) external view returns (uint256);\n\n    /**\n     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the\n     * caller's tokens.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\n     * that someone may use both the old and the new allowance by unfortunate\n     * transaction ordering. One possible solution to mitigate this race\n     * condition is to first reduce the spender's allowance to 0 and set the\n     * desired value afterwards:\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address spender, uint256 value) external returns (bool);\n\n    /**\n     * @dev Moves a `value` amount of tokens from `from` to `to` using the\n     * allowance mechanism. `value` is then deducted from the caller's\n     * allowance.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(address from, address to, uint256 value) external returns (bool);\n}\n"
      },
      "lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Permit.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in\n * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].\n *\n * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by\n * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't\n * need to send a transaction, and thus is not required to hold Ether at all.\n *\n * ==== Security Considerations\n *\n * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature\n * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be\n * considered as an intention to spend the allowance in any specific way. The second is that because permits have\n * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should\n * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be\n * generally recommended is:\n *\n * ```solidity\n * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {\n *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}\n *     doThing(..., value);\n * }\n *\n * function doThing(..., uint256 value) public {\n *     token.safeTransferFrom(msg.sender, address(this), value);\n *     ...\n * }\n * ```\n *\n * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of\n * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also\n * {SafeERC20-safeTransferFrom}).\n *\n * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so\n * contracts should have entry points that don't rely on permit.\n */\ninterface IERC20Permit {\n    /**\n     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,\n     * given ``owner``'s signed approval.\n     *\n     * IMPORTANT: The same issues {IERC20-approve} has related to transaction\n     * ordering also apply here.\n     *\n     * Emits an {Approval} event.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     * - `deadline` must be a timestamp in the future.\n     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`\n     * over the EIP712-formatted function arguments.\n     * - the signature must use ``owner``'s current nonce (see {nonces}).\n     *\n     * For more information on the signature format, see the\n     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP\n     * section].\n     *\n     * CAUTION: See Security Considerations above.\n     */\n    function permit(\n        address owner,\n        address spender,\n        uint256 value,\n        uint256 deadline,\n        uint8 v,\n        bytes32 r,\n        bytes32 s\n    ) external;\n\n    /**\n     * @dev Returns the current nonce for `owner`. This value must be\n     * included whenever a signature is generated for {permit}.\n     *\n     * Every successful call to {permit} increases ``owner``'s nonce by one. This\n     * prevents a signature from being used multiple times.\n     */\n    function nonces(address owner) external view returns (uint256);\n\n    /**\n     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.\n     */\n    // solhint-disable-next-line func-name-mixedcase\n    function DOMAIN_SEPARATOR() external view returns (bytes32);\n}\n"
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        "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
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        "bytecodeHash": "ipfs",
        "appendCBOR": true
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