Contract

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT

pragma solidity =0.8.16;

import {IFiatToken} from "../../../interfaces/IFiatToken.sol";
import {IUSDCBurnableSourceBridge} from "../../../interfaces/IUSDCBurnableSourceBridge.sol";
import {IL2ERC20Gateway} from "../../../L2/gateways/IL2ERC20Gateway.sol";
import {IL1ScrollMessenger} from "../../IL1ScrollMessenger.sol";
import {IL1ERC20Gateway} from "../IL1ERC20Gateway.sol";

import {ScrollGatewayBase} from "../../../libraries/gateway/ScrollGatewayBase.sol";
import {L1ERC20Gateway} from "../L1ERC20Gateway.sol";

/// @title L1USDCGateway
/// @notice The `L1USDCGateway` contract is used to deposit `USDC` token in layer 1 and
/// finalize withdraw `USDC` from layer 2, before USDC become native in layer 2.
contract L1USDCGateway is L1ERC20Gateway, IUSDCBurnableSourceBridge {
    /*************
     * Constants *
     *************/

    /// @notice The address of L1 USDC address.
    // solhint-disable-next-line var-name-mixedcase
    address public immutable l1USDC;

    /// @notice The address of L2 USDC address.
    address public immutable l2USDC;

    /*************
     * Variables *
     *************/

    /// @notice The address of caller from Circle.
    address public circleCaller;

    /// @notice The flag indicates whether USDC deposit is paused.
    bool public depositPaused;

    /// @notice The flag indicates whether USDC withdrawal is paused.
    /// @dev This is not necessary to be set `true` since we will set `L2USDCGateway.withdrawPaused` first.
    ///      This is kept just in case and will be set after all pending messages are relayed.
    bool public withdrawPaused;

    /// @notice The total amount of bridged USDC in this contract.
    /// @dev Only deposited USDC will count. Accidentally transferred USDC will be ignored.
    uint256 public totalBridgedUSDC;

    /***************
     * Constructor *
     ***************/

    /// @notice Constructor for `L1USDCGateway` implementation contract.
    ///
    /// @param _l1USDC The address of USDC in L1.
    /// @param _l2USDC The address of USDC in L2.
    /// @param _counterpart The address of `L2USDCGateway` contract in L2.
    /// @param _router The address of `L1GatewayRouter` contract in L1.
    /// @param _messenger The address of `L1ScrollMessenger` contract in L1.
    constructor(
        address _l1USDC,
        address _l2USDC,
        address _counterpart,
        address _router,
        address _messenger
    ) ScrollGatewayBase(_counterpart, _router, _messenger) {
        if (_l1USDC == address(0) || _l2USDC == address(0) || _router == address(0)) {
            revert ErrorZeroAddress();
        }

        _disableInitializers();

        l1USDC = _l1USDC;
        l2USDC = _l2USDC;
    }

    /// @notice Initialize the storage of L1USDCGateway.
    ///
    /// @dev The parameters `_counterpart`, `_router` and `_messenger` are no longer used.
    ///
    /// @param _counterpart The address of L2USDCGateway in L2.
    /// @param _router The address of L1GatewayRouter in L1.
    /// @param _messenger The address of L1ScrollMessenger in L1.
    function initialize(
        address _counterpart,
        address _router,
        address _messenger
    ) external initializer {
        ScrollGatewayBase._initialize(_counterpart, _router, _messenger);
    }

    /*************************
     * Public View Functions *
     *************************/

    /// @inheritdoc IL1ERC20Gateway
    function getL2ERC20Address(address) public view override returns (address) {
        return l2USDC;
    }

    /*******************************
     * Public Restricted Functions *
     *******************************/

    /// @inheritdoc IUSDCBurnableSourceBridge
    function burnAllLockedUSDC() external override {
        require(_msgSender() == circleCaller, "only circle caller");

        // @note Only bridged USDC will be burned. We may refund the rest if possible.
        uint256 _balance = totalBridgedUSDC;
        totalBridgedUSDC = 0;

        IFiatToken(l1USDC).burn(_balance);
    }

    /// @notice Update the Circle EOA address.
    /// @param _caller The address to update.
    function updateCircleCaller(address _caller) external onlyOwner {
        circleCaller = _caller;
    }

    /// @notice Change the deposit pause status of this contract.
    /// @param _paused The new status, `true` means paused and `false` means not paused.
    function pauseDeposit(bool _paused) external onlyOwner {
        depositPaused = _paused;
    }

    /// @notice Change the withdraw pause status of this contract.
    /// @param _paused The new status, `true` means paused and `false` means not paused.
    function pauseWithdraw(bool _paused) external onlyOwner {
        withdrawPaused = _paused;
    }

    /**********************
     * Internal Functions *
     **********************/

    /// @inheritdoc L1ERC20Gateway
    function _beforeFinalizeWithdrawERC20(
        address _l1Token,
        address _l2Token,
        address,
        address,
        uint256 _amount,
        bytes calldata
    ) internal virtual override {
        require(msg.value == 0, "nonzero msg.value");
        require(_l1Token == l1USDC, "l1 token not USDC");
        require(_l2Token == l2USDC, "l2 token not USDC");
        require(!withdrawPaused, "withdraw paused");

        totalBridgedUSDC -= _amount;
    }

    /// @inheritdoc L1ERC20Gateway
    function _beforeDropMessage(
        address,
        address,
        uint256 _amount
    ) internal virtual override {
        require(msg.value == 0, "nonzero msg.value");
        totalBridgedUSDC -= _amount;
    }

    /// @inheritdoc L1ERC20Gateway
    function _deposit(
        address _token,
        address _to,
        uint256 _amount,
        bytes memory _data,
        uint256 _gasLimit
    ) internal virtual override nonReentrant {
        require(_amount > 0, "deposit zero amount");
        require(_token == l1USDC, "only USDC is allowed");
        require(!depositPaused, "deposit paused");

        // 1. Transfer token into this contract.
        address _from;
        (_from, _amount, _data) = _transferERC20In(_token, _amount, _data);
        require(_data.length == 0, "call is not allowed");
        totalBridgedUSDC += _amount;

        // 2. Generate message passed to L2USDCGateway.
        bytes memory _message = abi.encodeCall(
            IL2ERC20Gateway.finalizeDepositERC20,
            (_token, l2USDC, _from, _to, _amount, _data)
        );

        // 3. Send message to L1ScrollMessenger.
        IL1ScrollMessenger(messenger).sendMessage{value: msg.value}(counterpart, 0, _message, _gasLimit, _from);

        emit DepositERC20(_token, l2USDC, _from, _to, _amount, _data);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    function __Ownable_init() internal onlyInitializing {
        __Ownable_init_unchained();
    }

    function __Ownable_init_unchained() internal onlyInitializing {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.2;

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.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * 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 prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     * @custom:oz-retyped-from bool
     */
    uint8 private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint8 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
     * constructor.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        bool isTopLevelCall = !_initializing;
        require(
            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
            "Initializable: contract is already initialized"
        );
        _initialized = 1;
        if (isTopLevelCall) {
            _initializing = true;
        }
        _;
        if (isTopLevelCall) {
            _initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: setting the version to 255 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint8 version) {
        require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
        _initialized = version;
        _initializing = true;
        _;
        _initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        require(!_initializing, "Initializable: contract is initializing");
        if (_initialized != type(uint8).max) {
            _initialized = type(uint8).max;
            emit Initialized(type(uint8).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint8) {
        return _initialized;
    }

    /**
     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
     */
    function _isInitializing() internal view returns (bool) {
        return _initializing;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuardUpgradeable is Initializable {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    function __ReentrancyGuard_init() internal onlyInitializing {
        __ReentrancyGuard_init_unchained();
    }

    function __ReentrancyGuard_init_unchained() internal onlyInitializing {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == _ENTERED;
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20PermitUpgradeable {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20Upgradeable {
    /**
     * @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);

    /**
     * @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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20Upgradeable.sol";
import "../extensions/IERC20PermitUpgradeable.sol";
import "../../../utils/AddressUpgradeable.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20Upgradeable {
    using AddressUpgradeable for address;

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20Upgradeable token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20Upgradeable token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(IERC20Upgradeable token, address spender, uint256 value) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20Upgradeable token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20Upgradeable token, address spender, uint256 value) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20Upgradeable token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
     * Revert on invalid signature.
     */
    function safePermit(
        IERC20PermitUpgradeable token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20Upgradeable token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20Upgradeable token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return
            success && (returndata.length == 0 || abi.decode(returndata, (bool))) && AddressUpgradeable.isContract(address(token));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [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://consensys.net/diligence/blog/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/v0.8.0/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 functionCallWithValue(target, data, 0, "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");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or 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 {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // 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
            /// @solidity memory-safe-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/Context.sol)

pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

    function __Context_init_unchained() internal onlyInitializing {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.16;

interface IFiatToken {
    /**
     * @notice Function to mint tokens
     * @param _to The address that will receive the minted tokens.
     * @param _amount The amount of tokens to mint. Must be less than or equal
     * to the minterAllowance of the caller.
     * @return A boolean that indicates if the operation was successful.
     */
    function mint(address _to, uint256 _amount) external returns (bool);

    /**
     * @notice allows a minter to burn some of its own tokens
     * Validates that caller is a minter and that sender is not blacklisted
     * amount is less than or equal to the minter's account balance
     * @param _amount uint256 the amount of tokens to be burned
     */
    function burn(uint256 _amount) external;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.16;

/// @title IUSDCBurnableSourceBridge
/// @notice The interface of `USDCBurnableSourceBridge` of Circle's upgrader in L1 (Ethereum).
interface IUSDCBurnableSourceBridge {
    /**
     * @notice Called by Circle, this executes a burn on the source
     * chain.
     */
    function burnAllLockedUSDC() external;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.16;

interface IL1ERC20Gateway {
    /**********
     * Events *
     **********/

    /// @notice Emitted when ERC20 token is withdrawn from L2 to L1 and transfer to recipient.
    /// @param l1Token The address of the token in L1.
    /// @param l2Token The address of the token in L2.
    /// @param from The address of sender in L2.
    /// @param to The address of recipient in L1.
    /// @param amount The amount of token withdrawn from L2 to L1.
    /// @param data The optional calldata passed to recipient in L1.
    event FinalizeWithdrawERC20(
        address indexed l1Token,
        address indexed l2Token,
        address indexed from,
        address to,
        uint256 amount,
        bytes data
    );

    /// @notice Emitted when someone deposit ERC20 token from L1 to L2.
    /// @param l1Token The address of the token in L1.
    /// @param l2Token The address of the token in L2.
    /// @param from The address of sender in L1.
    /// @param to The address of recipient in L2.
    /// @param amount The amount of token will be deposited from L1 to L2.
    /// @param data The optional calldata passed to recipient in L2.
    event DepositERC20(
        address indexed l1Token,
        address indexed l2Token,
        address indexed from,
        address to,
        uint256 amount,
        bytes data
    );

    /// @notice Emitted when some ERC20 token is refunded.
    /// @param token The address of the token in L1.
    /// @param recipient The address of receiver in L1.
    /// @param amount The amount of token refunded to receiver.
    event RefundERC20(address indexed token, address indexed recipient, uint256 amount);

    /*************************
     * Public View Functions *
     *************************/

    /// @notice Return the corresponding l2 token address given l1 token address.
    /// @param _l1Token The address of l1 token.
    function getL2ERC20Address(address _l1Token) external view returns (address);

    /*****************************
     * Public Mutating Functions *
     *****************************/

    /// @notice Deposit some token to a caller's account on L2.
    /// @dev Make this function payable to send relayer fee in Ether.
    /// @param _token The address of token in L1.
    /// @param _amount The amount of token to transfer.
    /// @param _gasLimit Gas limit required to complete the deposit on L2.
    function depositERC20(
        address _token,
        uint256 _amount,
        uint256 _gasLimit
    ) external payable;

    /// @notice Deposit some token to a recipient's account on L2.
    /// @dev Make this function payable to send relayer fee in Ether.
    /// @param _token The address of token in L1.
    /// @param _to The address of recipient's account on L2.
    /// @param _amount The amount of token to transfer.
    /// @param _gasLimit Gas limit required to complete the deposit on L2.
    function depositERC20(
        address _token,
        address _to,
        uint256 _amount,
        uint256 _gasLimit
    ) external payable;

    /// @notice Deposit some token to a recipient's account on L2 and call.
    /// @dev Make this function payable to send relayer fee in Ether.
    /// @param _token The address of token in L1.
    /// @param _to The address of recipient's account on L2.
    /// @param _amount The amount of token to transfer.
    /// @param _data Optional data to forward to recipient's account.
    /// @param _gasLimit Gas limit required to complete the deposit on L2.
    function depositERC20AndCall(
        address _token,
        address _to,
        uint256 _amount,
        bytes memory _data,
        uint256 _gasLimit
    ) external payable;

    /// @notice Complete ERC20 withdraw from L2 to L1 and send fund to recipient's account in L1.
    /// @dev Make this function payable to handle WETH deposit/withdraw.
    ///      The function should only be called by L1ScrollMessenger.
    ///      The function should also only be called by L2ERC20Gateway in L2.
    /// @param _l1Token The address of corresponding L1 token.
    /// @param _l2Token The address of corresponding L2 token.
    /// @param _from The address of account who withdraw the token in L2.
    /// @param _to The address of recipient in L1 to receive the token.
    /// @param _amount The amount of the token to withdraw.
    /// @param _data Optional data to forward to recipient's account.
    function finalizeWithdrawERC20(
        address _l1Token,
        address _l2Token,
        address _from,
        address _to,
        uint256 _amount,
        bytes calldata _data
    ) external payable;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.16;

interface IL1ETHGateway {
    /**********
     * Events *
     **********/

    /// @notice Emitted when ETH is withdrawn from L2 to L1 and transfer to recipient.
    /// @param from The address of sender in L2.
    /// @param to The address of recipient in L1.
    /// @param amount The amount of ETH withdrawn from L2 to L1.
    /// @param data The optional calldata passed to recipient in L1.
    event FinalizeWithdrawETH(address indexed from, address indexed to, uint256 amount, bytes data);

    /// @notice Emitted when someone deposit ETH from L1 to L2.
    /// @param from The address of sender in L1.
    /// @param to The address of recipient in L2.
    /// @param amount The amount of ETH will be deposited from L1 to L2.
    /// @param data The optional calldata passed to recipient in L2.
    event DepositETH(address indexed from, address indexed to, uint256 amount, bytes data);

    /// @notice Emitted when some ETH is refunded.
    /// @param recipient The address of receiver in L1.
    /// @param amount The amount of ETH refunded to receiver.
    event RefundETH(address indexed recipient, uint256 amount);

    /*****************************
     * Public Mutating Functions *
     *****************************/

    /// @notice Deposit ETH to caller's account in L2.
    /// @param amount The amount of ETH to be deposited.
    /// @param gasLimit Gas limit required to complete the deposit on L2.
    function depositETH(uint256 amount, uint256 gasLimit) external payable;

    /// @notice Deposit ETH to some recipient's account in L2.
    /// @param to The address of recipient's account on L2.
    /// @param amount The amount of ETH to be deposited.
    /// @param gasLimit Gas limit required to complete the deposit on L2.
    function depositETH(
        address to,
        uint256 amount,
        uint256 gasLimit
    ) external payable;

    /// @notice Deposit ETH to some recipient's account in L2 and call the target contract.
    /// @param to The address of recipient's account on L2.
    /// @param amount The amount of ETH to be deposited.
    /// @param data Optional data to forward to recipient's account.
    /// @param gasLimit Gas limit required to complete the deposit on L2.
    function depositETHAndCall(
        address to,
        uint256 amount,
        bytes calldata data,
        uint256 gasLimit
    ) external payable;

    /// @notice Complete ETH withdraw from L2 to L1 and send fund to recipient's account in L1.
    /// @dev This function should only be called by L1ScrollMessenger.
    ///      This function should also only be called by L1ETHGateway in L2.
    /// @param from The address of account who withdraw ETH in L2.
    /// @param to The address of recipient in L1 to receive ETH.
    /// @param amount The amount of ETH to withdraw.
    /// @param data Optional data to forward to recipient's account.
    function finalizeWithdrawETH(
        address from,
        address to,
        uint256 amount,
        bytes calldata data
    ) external payable;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.16;

import {IL1ETHGateway} from "./IL1ETHGateway.sol";
import {IL1ERC20Gateway} from "./IL1ERC20Gateway.sol";

interface IL1GatewayRouter is IL1ETHGateway, IL1ERC20Gateway {
    /**********
     * Events *
     **********/

    /// @notice Emitted when the address of ETH Gateway is updated.
    /// @param oldETHGateway The address of the old ETH Gateway.
    /// @param newEthGateway The address of the new ETH Gateway.
    event SetETHGateway(address indexed oldETHGateway, address indexed newEthGateway);

    /// @notice Emitted when the address of default ERC20 Gateway is updated.
    /// @param oldDefaultERC20Gateway The address of the old default ERC20 Gateway.
    /// @param newDefaultERC20Gateway The address of the new default ERC20 Gateway.
    event SetDefaultERC20Gateway(address indexed oldDefaultERC20Gateway, address indexed newDefaultERC20Gateway);

    /// @notice Emitted when the `gateway` for `token` is updated.
    /// @param token The address of token updated.
    /// @param oldGateway The corresponding address of the old gateway.
    /// @param newGateway The corresponding address of the new gateway.
    event SetERC20Gateway(address indexed token, address indexed oldGateway, address indexed newGateway);

    /*************************
     * Public View Functions *
     *************************/

    /// @notice Return the corresponding gateway address for given token address.
    /// @param _token The address of token to query.
    function getERC20Gateway(address _token) external view returns (address);

    /*****************************
     * Public Mutating Functions *
     *****************************/

    /// @notice Request ERC20 token transfer from users to gateways.
    /// @param sender The address of sender to request fund.
    /// @param token The address of token to request.
    /// @param amount The amount of token to request.
    function requestERC20(
        address sender,
        address token,
        uint256 amount
    ) external returns (uint256);

    /************************
     * Restricted Functions *
     ************************/

    /// @notice Update the address of ETH gateway contract.
    /// @dev This function should only be called by contract owner.
    /// @param _ethGateway The address to update.
    function setETHGateway(address _ethGateway) external;

    /// @notice Update the address of default ERC20 gateway contract.
    /// @dev This function should only be called by contract owner.
    /// @param _defaultERC20Gateway The address to update.
    function setDefaultERC20Gateway(address _defaultERC20Gateway) external;

    /// @notice Update the mapping from token address to gateway address.
    /// @dev This function should only be called by contract owner.
    /// @param _tokens The list of addresses of tokens to update.
    /// @param _gateways The list of addresses of gateways to update.
    function setERC20Gateway(address[] calldata _tokens, address[] calldata _gateways) external;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.16;

import {IERC20Upgradeable} from "@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol";
import {SafeERC20Upgradeable} from "@openzeppelin/contracts-upgradeable/token/ERC20/utils/SafeERC20Upgradeable.sol";

import {IL1ERC20Gateway} from "./IL1ERC20Gateway.sol";
import {IL1GatewayRouter} from "./IL1GatewayRouter.sol";

import {IL2ERC20Gateway} from "../../L2/gateways/IL2ERC20Gateway.sol";
import {ScrollGatewayBase} from "../../libraries/gateway/ScrollGatewayBase.sol";
import {IMessageDropCallback} from "../../libraries/callbacks/IMessageDropCallback.sol";

/// @title L1ERC20Gateway
/// @notice The `L1ERC20Gateway` as a base contract for ERC20 gateways in L1.
/// It has implementation of common used functions for ERC20 gateways.
abstract contract L1ERC20Gateway is IL1ERC20Gateway, IMessageDropCallback, ScrollGatewayBase {
    using SafeERC20Upgradeable for IERC20Upgradeable;

    /*************
     * Variables *
     *************/

    /// @dev The storage slots for future usage.
    uint256[50] private __gap;

    /*****************************
     * Public Mutating Functions *
     *****************************/

    /// @inheritdoc IL1ERC20Gateway
    function depositERC20(
        address _token,
        uint256 _amount,
        uint256 _gasLimit
    ) external payable override {
        _deposit(_token, _msgSender(), _amount, new bytes(0), _gasLimit);
    }

    /// @inheritdoc IL1ERC20Gateway
    function depositERC20(
        address _token,
        address _to,
        uint256 _amount,
        uint256 _gasLimit
    ) external payable override {
        _deposit(_token, _to, _amount, new bytes(0), _gasLimit);
    }

    /// @inheritdoc IL1ERC20Gateway
    function depositERC20AndCall(
        address _token,
        address _to,
        uint256 _amount,
        bytes memory _data,
        uint256 _gasLimit
    ) external payable override {
        _deposit(_token, _to, _amount, _data, _gasLimit);
    }

    /// @inheritdoc IL1ERC20Gateway
    function finalizeWithdrawERC20(
        address _l1Token,
        address _l2Token,
        address _from,
        address _to,
        uint256 _amount,
        bytes calldata _data
    ) external payable virtual override onlyCallByCounterpart nonReentrant {
        _beforeFinalizeWithdrawERC20(_l1Token, _l2Token, _from, _to, _amount, _data);

        // @note can possible trigger reentrant call to this contract or messenger,
        // but it seems not a big problem.
        IERC20Upgradeable(_l1Token).safeTransfer(_to, _amount);

        _doCallback(_to, _data);

        emit FinalizeWithdrawERC20(_l1Token, _l2Token, _from, _to, _amount, _data);
    }

    /// @inheritdoc IMessageDropCallback
    function onDropMessage(bytes calldata _message) external payable virtual onlyInDropContext nonReentrant {
        // _message should start with 0x8431f5c1  =>  finalizeDepositERC20(address,address,address,address,uint256,bytes)
        require(bytes4(_message[0:4]) == IL2ERC20Gateway.finalizeDepositERC20.selector, "invalid selector");

        // decode (token, receiver, amount)
        (address _token, , address _receiver, , uint256 _amount, ) = abi.decode(
            _message[4:],
            (address, address, address, address, uint256, bytes)
        );

        // do dome check for each custom gateway
        _beforeDropMessage(_token, _receiver, _amount);

        IERC20Upgradeable(_token).safeTransfer(_receiver, _amount);

        emit RefundERC20(_token, _receiver, _amount);
    }

    /**********************
     * Internal Functions *
     **********************/

    /// @dev Internal function hook to perform checks and actions before finalizing the withdrawal.
    /// @param _l1Token The address of corresponding L1 token in L1.
    /// @param _l2Token The address of corresponding L2 token in L2.
    /// @param _from The address of account who withdraw the token in L2.
    /// @param _to The address of recipient in L1 to receive the token.
    /// @param _amount The amount of the token to withdraw.
    /// @param _data Optional data to forward to recipient's account.
    function _beforeFinalizeWithdrawERC20(
        address _l1Token,
        address _l2Token,
        address _from,
        address _to,
        uint256 _amount,
        bytes calldata _data
    ) internal virtual;

    /// @dev Internal function hook to perform checks and actions before dropping the message.
    /// @param _token The L1 token address.
    /// @param _receiver The recipient address on L1.
    /// @param _amount The amount of token to refund.
    function _beforeDropMessage(
        address _token,
        address _receiver,
        uint256 _amount
    ) internal virtual;

    /// @dev Internal function to transfer ERC20 token to this contract.
    /// @param _token The address of token to transfer.
    /// @param _amount The amount of token to transfer.
    /// @param _data The data passed by caller.
    function _transferERC20In(
        address _token,
        uint256 _amount,
        bytes memory _data
    )
        internal
        returns (
            address,
            uint256,
            bytes memory
        )
    {
        address _sender = _msgSender();
        address _from = _sender;
        if (router == _sender) {
            // Extract real sender if this call is from L1GatewayRouter.
            (_from, _data) = abi.decode(_data, (address, bytes));
            _amount = IL1GatewayRouter(_sender).requestERC20(_from, _token, _amount);
        } else {
            // common practice to handle fee on transfer token.
            uint256 _before = IERC20Upgradeable(_token).balanceOf(address(this));
            IERC20Upgradeable(_token).safeTransferFrom(_from, address(this), _amount);
            uint256 _after = IERC20Upgradeable(_token).balanceOf(address(this));
            // no unchecked here, since some weird token may return arbitrary balance.
            _amount = _after - _before;
        }
        // ignore weird fee on transfer token
        require(_amount > 0, "deposit zero amount");

        return (_from, _amount, _data);
    }

    /// @dev Internal function to do all the deposit operations.
    ///
    /// @param _token The token to deposit.
    /// @param _to The recipient address to recieve the token in L2.
    /// @param _amount The amount of token to deposit.
    /// @param _data Optional data to forward to recipient's account.
    /// @param _gasLimit Gas limit required to complete the deposit on L2.
    function _deposit(
        address _token,
        address _to,
        uint256 _amount,
        bytes memory _data,
        uint256 _gasLimit
    ) internal virtual;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.16;

import {IScrollMessenger} from "../libraries/IScrollMessenger.sol";

interface IL1ScrollMessenger is IScrollMessenger {
    /**********
     * Events *
     **********/

    /// @notice Emitted when the maximum number of times each message can be replayed is updated.
    /// @param oldMaxReplayTimes The old maximum number of times each message can be replayed.
    /// @param newMaxReplayTimes The new maximum number of times each message can be replayed.
    event UpdateMaxReplayTimes(uint256 oldMaxReplayTimes, uint256 newMaxReplayTimes);

    /***********
     * Structs *
     ***********/

    struct L2MessageProof {
        // The index of the batch where the message belongs to.
        uint256 batchIndex;
        // Concatenation of merkle proof for withdraw merkle trie.
        bytes merkleProof;
    }

    /*****************************
     * Public Mutating Functions *
     *****************************/

    /// @notice Relay a L2 => L1 message with message proof.
    /// @param from The address of the sender of the message.
    /// @param to The address of the recipient of the message.
    /// @param value The msg.value passed to the message call.
    /// @param nonce The nonce of the message to avoid replay attack.
    /// @param message The content of the message.
    /// @param proof The proof used to verify the correctness of the transaction.
    function relayMessageWithProof(
        address from,
        address to,
        uint256 value,
        uint256 nonce,
        bytes memory message,
        L2MessageProof memory proof
    ) external;

    /// @notice Replay an existing message.
    /// @param from The address of the sender of the message.
    /// @param to The address of the recipient of the message.
    /// @param value The msg.value passed to the message call.
    /// @param messageNonce The nonce for the message to replay.
    /// @param message The content of the message.
    /// @param newGasLimit New gas limit to be used for this message.
    /// @param refundAddress The address of account who will receive the refunded fee.
    function replayMessage(
        address from,
        address to,
        uint256 value,
        uint256 messageNonce,
        bytes memory message,
        uint32 newGasLimit,
        address refundAddress
    ) external payable;

    /// @notice Drop a skipped message.
    /// @param from The address of the sender of the message.
    /// @param to The address of the recipient of the message.
    /// @param value The msg.value passed to the message call.
    /// @param messageNonce The nonce for the message to drop.
    /// @param message The content of the message.
    function dropMessage(
        address from,
        address to,
        uint256 value,
        uint256 messageNonce,
        bytes memory message
    ) external;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.16;

interface IL2ERC20Gateway {
    /**********
     * Events *
     **********/

    /// @notice Emitted when ERC20 token is deposited from L1 to L2 and transfer to recipient.
    /// @param l1Token The address of the token in L1.
    /// @param l2Token The address of the token in L2.
    /// @param from The address of sender in L1.
    /// @param to The address of recipient in L2.
    /// @param amount The amount of token withdrawn from L1 to L2.
    /// @param data The optional calldata passed to recipient in L2.
    event FinalizeDepositERC20(
        address indexed l1Token,
        address indexed l2Token,
        address indexed from,
        address to,
        uint256 amount,
        bytes data
    );

    /// @notice Emitted when someone withdraw ERC20 token from L2 to L1.
    /// @param l1Token The address of the token in L1.
    /// @param l2Token The address of the token in L2.
    /// @param from The address of sender in L2.
    /// @param to The address of recipient in L1.
    /// @param amount The amount of token will be deposited from L2 to L1.
    /// @param data The optional calldata passed to recipient in L1.
    event WithdrawERC20(
        address indexed l1Token,
        address indexed l2Token,
        address indexed from,
        address to,
        uint256 amount,
        bytes data
    );

    /*************************
     * Public View Functions *
     *************************/

    /// @notice Return the corresponding l1 token address given l2 token address.
    /// @param l2Token The address of l2 token.
    function getL1ERC20Address(address l2Token) external view returns (address);

    /// @notice Return the corresponding l2 token address given l1 token address.
    /// @param l1Token The address of l1 token.
    function getL2ERC20Address(address l1Token) external view returns (address);

    /*****************************
     * Public Mutating Functions *
     *****************************/

    /// @notice Withdraw of some token to a caller's account on L1.
    /// @dev Make this function payable to send relayer fee in Ether.
    /// @param token The address of token in L2.
    /// @param amount The amount of token to transfer.
    /// @param gasLimit Unused, but included for potential forward compatibility considerations.
    function withdrawERC20(
        address token,
        uint256 amount,
        uint256 gasLimit
    ) external payable;

    /// @notice Withdraw of some token to a recipient's account on L1.
    /// @dev Make this function payable to send relayer fee in Ether.
    /// @param token The address of token in L2.
    /// @param to The address of recipient's account on L1.
    /// @param amount The amount of token to transfer.
    /// @param gasLimit Unused, but included for potential forward compatibility considerations.
    function withdrawERC20(
        address token,
        address to,
        uint256 amount,
        uint256 gasLimit
    ) external payable;

    /// @notice Withdraw of some token to a recipient's account on L1 and call.
    /// @dev Make this function payable to send relayer fee in Ether.
    /// @param token The address of token in L2.
    /// @param to The address of recipient's account on L1.
    /// @param amount The amount of token to transfer.
    /// @param data Optional data to forward to recipient's account.
    /// @param gasLimit Unused, but included for potential forward compatibility considerations.
    function withdrawERC20AndCall(
        address token,
        address to,
        uint256 amount,
        bytes calldata data,
        uint256 gasLimit
    ) external payable;

    /// @notice Complete a deposit from L1 to L2 and send fund to recipient's account in L2.
    /// @dev Make this function payable to handle WETH deposit/withdraw.
    ///      The function should only be called by L2ScrollMessenger.
    ///      The function should also only be called by L1ERC20Gateway in L1.
    /// @param l1Token The address of corresponding L1 token.
    /// @param l2Token The address of corresponding L2 token.
    /// @param from The address of account who deposits the token in L1.
    /// @param to The address of recipient in L2 to receive the token.
    /// @param amount The amount of the token to deposit.
    /// @param data Optional data to forward to recipient's account.
    function finalizeDepositERC20(
        address l1Token,
        address l2Token,
        address from,
        address to,
        uint256 amount,
        bytes calldata data
    ) external payable;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.16;

interface IMessageDropCallback {
    function onDropMessage(bytes memory message) external payable;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.16;

interface IScrollGatewayCallback {
    function onScrollGatewayCallback(bytes memory data) external;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.16;

library ScrollConstants {
    /// @notice The address of default cross chain message sender.
    address internal constant DEFAULT_XDOMAIN_MESSAGE_SENDER = address(1);

    /// @notice The address for dropping message.
    /// @dev The first 20 bytes of keccak("drop")
    address internal constant DROP_XDOMAIN_MESSAGE_SENDER = 0x6f297C61B5C92eF107fFD30CD56AFFE5A273e841;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.16;

interface IScrollGateway {
    /**********
     * Errors *
     **********/

    /// @dev Thrown when the given address is `address(0)`.
    error ErrorZeroAddress();

    /// @dev Thrown when the caller is not corresponding `L1ScrollMessenger` or `L2ScrollMessenger`.
    error ErrorCallerIsNotMessenger();

    /// @dev Thrown when the cross chain sender is not the counterpart gateway contract.
    error ErrorCallerIsNotCounterpartGateway();

    /// @dev Thrown when ScrollMessenger is not dropping message.
    error ErrorNotInDropMessageContext();

    /*************************
     * Public View Functions *
     *************************/

    /// @notice The address of corresponding L1/L2 Gateway contract.
    function counterpart() external view returns (address);

    /// @notice The address of L1GatewayRouter/L2GatewayRouter contract.
    function router() external view returns (address);

    /// @notice The address of corresponding L1ScrollMessenger/L2ScrollMessenger contract.
    function messenger() external view returns (address);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.16;

import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import {ReentrancyGuardUpgradeable} from "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";

import {IScrollGateway} from "./IScrollGateway.sol";
import {IScrollMessenger} from "../IScrollMessenger.sol";
import {IScrollGatewayCallback} from "../callbacks/IScrollGatewayCallback.sol";
import {ScrollConstants} from "../constants/ScrollConstants.sol";
import {ITokenRateLimiter} from "../../rate-limiter/ITokenRateLimiter.sol";

/// @title ScrollGatewayBase
/// @notice The `ScrollGatewayBase` is a base contract for gateway contracts used in both in L1 and L2.
abstract contract ScrollGatewayBase is ReentrancyGuardUpgradeable, OwnableUpgradeable, IScrollGateway {
    /*************
     * Constants *
     *************/

    /// @inheritdoc IScrollGateway
    address public immutable override counterpart;

    /// @inheritdoc IScrollGateway
    address public immutable override router;

    /// @inheritdoc IScrollGateway
    address public immutable override messenger;

    /*************
     * Variables *
     *************/

    /// @dev The storage slot used as counterpart gateway contract, which is deprecated now.
    address private __counterpart;

    /// @dev The storage slot used as gateway router contract, which is deprecated now.
    address private __router;

    /// @dev The storage slot used as scroll messenger contract, which is deprecated now.
    address private __messenger;

    /// @dev The storage slot used as token rate limiter contract, which is deprecated now.
    address private __rateLimiter;

    /// @dev The storage slots for future usage.
    uint256[46] private __gap;

    /**********************
     * Function Modifiers *
     **********************/

    modifier onlyCallByCounterpart() {
        // check caller is messenger
        if (_msgSender() != messenger) {
            revert ErrorCallerIsNotMessenger();
        }

        // check cross domain caller is counterpart gateway
        if (counterpart != IScrollMessenger(messenger).xDomainMessageSender()) {
            revert ErrorCallerIsNotCounterpartGateway();
        }
        _;
    }

    modifier onlyInDropContext() {
        // check caller is messenger
        if (_msgSender() != messenger) {
            revert ErrorCallerIsNotMessenger();
        }

        // check we are dropping message in ScrollMessenger.
        if (ScrollConstants.DROP_XDOMAIN_MESSAGE_SENDER != IScrollMessenger(messenger).xDomainMessageSender()) {
            revert ErrorNotInDropMessageContext();
        }
        _;
    }

    /***************
     * Constructor *
     ***************/

    constructor(
        address _counterpart,
        address _router,
        address _messenger
    ) {
        if (_counterpart == address(0) || _messenger == address(0)) {
            revert ErrorZeroAddress();
        }

        counterpart = _counterpart;
        router = _router;
        messenger = _messenger;
    }

    function _initialize(
        address,
        address,
        address
    ) internal {
        ReentrancyGuardUpgradeable.__ReentrancyGuard_init();
        OwnableUpgradeable.__Ownable_init();
    }

    /**********************
     * Internal Functions *
     **********************/

    /// @dev Internal function to forward calldata to target contract.
    /// @param _to The address of contract to call.
    /// @param _data The calldata passed to the contract.
    function _doCallback(address _to, bytes memory _data) internal {
        if (_data.length > 0 && _to.code.length > 0) {
            IScrollGatewayCallback(_to).onScrollGatewayCallback(_data);
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.16;

interface IScrollMessenger {
    /**********
     * Events *
     **********/

    /// @notice Emitted when a cross domain message is sent.
    /// @param sender The address of the sender who initiates the message.
    /// @param target The address of target contract to call.
    /// @param value The amount of value passed to the target contract.
    /// @param messageNonce The nonce of the message.
    /// @param gasLimit The optional gas limit passed to L1 or L2.
    /// @param message The calldata passed to the target contract.
    event SentMessage(
        address indexed sender,
        address indexed target,
        uint256 value,
        uint256 messageNonce,
        uint256 gasLimit,
        bytes message
    );

    /// @notice Emitted when a cross domain message is relayed successfully.
    /// @param messageHash The hash of the message.
    event RelayedMessage(bytes32 indexed messageHash);

    /// @notice Emitted when a cross domain message is failed to relay.
    /// @param messageHash The hash of the message.
    event FailedRelayedMessage(bytes32 indexed messageHash);

    /**********
     * Errors *
     **********/

    /// @dev Thrown when the given address is `address(0)`.
    error ErrorZeroAddress();

    /*************************
     * Public View Functions *
     *************************/

    /// @notice Return the sender of a cross domain message.
    function xDomainMessageSender() external view returns (address);

    /*****************************
     * Public Mutating Functions *
     *****************************/

    /// @notice Send cross chain message from L1 to L2 or L2 to L1.
    /// @param target The address of account who receive the message.
    /// @param value The amount of ether passed when call target contract.
    /// @param message The content of the message.
    /// @param gasLimit Gas limit required to complete the message relay on corresponding chain.
    function sendMessage(
        address target,
        uint256 value,
        bytes calldata message,
        uint256 gasLimit
    ) external payable;

    /// @notice Send cross chain message from L1 to L2 or L2 to L1.
    /// @param target The address of account who receive the message.
    /// @param value The amount of ether passed when call target contract.
    /// @param message The content of the message.
    /// @param gasLimit Gas limit required to complete the message relay on corresponding chain.
    /// @param refundAddress The address of account who will receive the refunded fee.
    function sendMessage(
        address target,
        uint256 value,
        bytes calldata message,
        uint256 gasLimit,
        address refundAddress
    ) external payable;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.16;

interface ITokenRateLimiter {
    /**********
     * Events *
     **********/

    /// @notice Emitted when the total limit is updated.
    /// @param oldTotalLimit The previous value of total limit before updating.
    /// @param newTotalLimit The current value of total limit after updating.
    event UpdateTotalLimit(address indexed token, uint256 oldTotalLimit, uint256 newTotalLimit);

    /**********
     * Errors *
     **********/

    /// @dev Thrown when the `periodDuration` is initialized to zero.
    error PeriodIsZero();

    /// @dev Thrown when the `totalAmount` is initialized to zero.
    /// @param token The address of the token.
    error TotalLimitIsZero(address token);

    /// @dev Thrown when an amount breaches the total limit in the period.
    /// @param token The address of the token.
    error ExceedTotalLimit(address token);

    /*****************************
     * Public Mutating Functions *
     *****************************/

    /// @notice Request some token usage for `sender`.
    /// @param token The address of the token.
    /// @param amount The amount of token to use.
    function addUsedAmount(address token, uint256 amount) external;
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_l1USDC","type":"address"},{"internalType":"address","name":"_l2USDC","type":"address"},{"internalType":"address","name":"_counterpart","type":"address"},{"internalType":"address","name":"_router","type":"address"},{"internalType":"address","name":"_messenger","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ErrorCallerIsNotCounterpartGateway","type":"error"},{"inputs":[],"name":"ErrorCallerIsNotMessenger","type":"error"},{"inputs":[],"name":"ErrorNotInDropMessageContext","type":"error"},{"inputs":[],"name":"ErrorZeroAddress","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"l1Token","type":"address"},{"indexed":true,"internalType":"address","name":"l2Token","type":"address"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"DepositERC20","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"l1Token","type":"address"},{"indexed":true,"internalType":"address","name":"l2Token","type":"address"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"FinalizeWithdrawERC20","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint8","name":"version","type":"uint8"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"token","type":"address"},{"indexed":true,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"RefundERC20","type":"event"},{"inputs":[],"name":"burnAllLockedUSDC","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"circleCaller","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"counterpart","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"uint256","name":"_gasLimit","type":"uint256"}],"name":"depositERC20","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"uint256","name":"_gasLimit","type":"uint256"}],"name":"depositERC20","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"},{"internalType":"uint256","name":"_gasLimit","type":"uint256"}],"name":"depositERC20AndCall","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"depositPaused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_l1Token","type":"address"},{"internalType":"address","name":"_l2Token","type":"address"},{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"finalizeWithdrawERC20","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"getL2ERC20Address","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_counterpart","type":"address"},{"internalType":"address","name":"_router","type":"address"},{"internalType":"address","name":"_messenger","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"l1USDC","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"l2USDC","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"messenger","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"_message","type":"bytes"}],"name":"onDropMessage","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bool","name":"_paused","type":"bool"}],"name":"pauseDeposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_paused","type":"bool"}],"name":"pauseWithdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"router","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalBridgedUSDC","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_caller","type":"address"}],"name":"updateCircleCaller","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdrawPaused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"}]

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

000000000000000000000000a0b86991c6218b36c1d19d4a2e9eb0ce3606eb4800000000000000000000000006efdbff2a14a7c8e15944d1f4a48f9f95f663a400000000000000000000000033b60d5dd260d453cac3782b0bdc01ce84672142000000000000000000000000f8b1378579659d8f7ee5f3c929c2f3e332e41fd60000000000000000000000006774bcbd5cecef1336b5300fb5186a12ddd8b367

-----Decoded View---------------
Arg [0] : _l1USDC (address): 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48
Arg [1] : _l2USDC (address): 0x06eFdBFf2a14a7c8E15944D1F4A48F9F95F663A4
Arg [2] : _counterpart (address): 0x33B60d5Dd260d453cAC3782b0bDC01ce84672142
Arg [3] : _router (address): 0xF8B1378579659D8F7EE5f3C929c2f3E332E41Fd6
Arg [4] : _messenger (address): 0x6774Bcbd5ceCeF1336b5300fb5186a12DDD8b367

-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 000000000000000000000000a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48
Arg [1] : 00000000000000000000000006efdbff2a14a7c8e15944d1f4a48f9f95f663a4
Arg [2] : 00000000000000000000000033b60d5dd260d453cac3782b0bdc01ce84672142
Arg [3] : 000000000000000000000000f8b1378579659d8f7ee5f3c929c2f3e332e41fd6
Arg [4] : 0000000000000000000000006774bcbd5cecef1336b5300fb5186a12ddd8b367