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Gas: 7 Gwei

Contract

0x0330E9b4D0325cCfF515E81DFbc7754F2a02ac57
 

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Retrieve160880402022-12-01 6:03:11542 days ago1669874591IN
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Retrieve160850642022-11-30 20:03:35543 days ago1669838615IN
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Retrieve160746292022-11-29 9:03:47544 days ago1669712627IN
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Retrieve160746242022-11-29 9:02:47544 days ago1669712567IN
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Retrieve160734332022-11-29 5:02:59544 days ago1669698179IN
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Retrieve160734302022-11-29 5:02:23544 days ago1669698143IN
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Retrieve160722512022-11-29 1:04:35545 days ago1669683875IN
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0 ETH0.0004001310.61523247
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Contract Source Code Verified (Exact Match)

Contract Name:
PolygonTokenBridger

Compiler Version
v0.8.13+commit.abaa5c0e

Optimization Enabled:
Yes with 1000000 runs

Other Settings:
default evmVersion, GNU AGPLv3 license
File 1 of 6 : PolygonTokenBridger.sol
// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity ^0.8.0;

import "./Lockable.sol";
import "./interfaces/WETH9.sol";

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

// Polygon Registry contract that stores their addresses.
interface PolygonRegistry {
    function erc20Predicate() external returns (address);
}

// Polygon ERC20Predicate contract that handles Plasma exits (only used for Matic).
interface PolygonERC20Predicate {
    function startExitWithBurntTokens(bytes calldata data) external;
}

// ERC20s (on polygon) compatible with polygon's bridge have a withdraw method.
interface PolygonIERC20 is IERC20 {
    function withdraw(uint256 amount) external;
}

interface MaticToken {
    function withdraw(uint256 amount) external payable;
}

/**
 * @notice Contract deployed on Ethereum and Polygon to facilitate token transfers from Polygon to the HubPool and back.
 * @dev Because Polygon only allows withdrawals from a particular address to go to that same address on mainnet, we need to
 * have some sort of contract that can guarantee identical addresses on Polygon and Ethereum. This contract is intended
 * to be completely immutable, so it's guaranteed that the contract on each side is  configured identically as long as
 * it is created via create2. create2 is an alternative creation method that uses a different address determination
 * mechanism from normal create.
 * Normal create: address = hash(deployer_address, deployer_nonce)
 * create2:       address = hash(0xFF, sender, salt, bytecode)
 *  This ultimately allows create2 to generate deterministic addresses that don't depend on the transaction count of the
 * sender.
 */
contract PolygonTokenBridger is Lockable {
    using SafeERC20 for PolygonIERC20;
    using SafeERC20 for IERC20;

    // Gas token for Polygon.
    MaticToken public constant maticToken = MaticToken(0x0000000000000000000000000000000000001010);

    // Should be set to HubPool on Ethereum, or unused on Polygon.
    address public immutable destination;

    // Registry that stores L1 polygon addresses.
    PolygonRegistry public immutable l1PolygonRegistry;

    // WETH contract on Ethereum.
    WETH9 public immutable l1Weth;

    // Wrapped Matic on Polygon
    address public immutable l2WrappedMatic;

    // Chain id for the L1 that this contract is deployed on or communicates with.
    // For example: if this contract were meant to facilitate transfers from polygon to mainnet, this value would be
    // the mainnet chainId 1.
    uint256 public immutable l1ChainId;

    // Chain id for the L2 that this contract is deployed on or communicates with.
    // For example: if this contract were meant to facilitate transfers from polygon to mainnet, this value would be
    // the polygon chainId 137.
    uint256 public immutable l2ChainId;

    modifier onlyChainId(uint256 chainId) {
        _requireChainId(chainId);
        _;
    }

    /**
     * @notice Constructs Token Bridger contract.
     * @param _destination Where to send tokens to for this network.
     * @param _l1PolygonRegistry L1 registry that stores updated addresses of polygon contracts. This should always be
     * set to the L1 registry regardless if whether it's deployed on L2 or L1.
     * @param _l1Weth L1 WETH address.
     * @param _l2WrappedMatic L2 address of wrapped matic token.
     * @param _l1ChainId the chain id for the L1 in this environment.
     * @param _l2ChainId the chain id for the L2 in this environment.
     */
    constructor(
        address _destination,
        PolygonRegistry _l1PolygonRegistry,
        WETH9 _l1Weth,
        address _l2WrappedMatic,
        uint256 _l1ChainId,
        uint256 _l2ChainId
    ) {
        destination = _destination;
        l1PolygonRegistry = _l1PolygonRegistry;
        l1Weth = _l1Weth;
        l2WrappedMatic = _l2WrappedMatic;
        l1ChainId = _l1ChainId;
        l2ChainId = _l2ChainId;
    }

    /**
     * @notice Called by Polygon SpokePool to send tokens over bridge to contract with the same address as this.
     * @notice The caller of this function must approve this contract to spend amount of token.
     * @param token Token to bridge.
     * @param amount Amount to bridge.
     */
    function send(PolygonIERC20 token, uint256 amount) public nonReentrant onlyChainId(l2ChainId) {
        token.safeTransferFrom(msg.sender, address(this), amount);

        // In the wMatic case, this unwraps. For other ERC20s, this is the burn/send action.
        token.withdraw(token.balanceOf(address(this)));

        // This takes the token that was withdrawn and calls withdraw on the "native" ERC20.
        if (address(token) == l2WrappedMatic)
            maticToken.withdraw{ value: address(this).balance }(address(this).balance);
    }

    /**
     * @notice Called by someone to send tokens to the destination, which should be set to the HubPool.
     * @param token Token to send to destination.
     */
    function retrieve(IERC20 token) public nonReentrant onlyChainId(l1ChainId) {
        if (address(token) == address(l1Weth)) {
            // For WETH, there is a pre-deposit step to ensure any ETH that has been sent to the contract is captured.
            l1Weth.deposit{ value: address(this).balance }();
        }
        token.safeTransfer(destination, token.balanceOf(address(this)));
    }

    /**
     * @notice Called to initiate an l1 exit (withdrawal) of matic tokens that have been sent over the plasma bridge.
     * @param data the proof data to trigger the exit. Can be generated using the maticjs-plasma package.
     */
    function callExit(bytes memory data) public nonReentrant onlyChainId(l1ChainId) {
        PolygonERC20Predicate erc20Predicate = PolygonERC20Predicate(l1PolygonRegistry.erc20Predicate());
        erc20Predicate.startExitWithBurntTokens(data);
    }

    receive() external payable {
        // This method is empty to avoid any gas expendatures that might cause transfers to fail.
        // Note: the fact that there is _no_ code in this function means that matic can be erroneously transferred in
        // to the contract on the polygon side. These tokens would be locked indefinitely since the receive function
        // cannot be called on the polygon side. While this does have some downsides, the lack of any functionality
        // in this function means that it has no chance of running out of gas on transfers, which is a much more
        // important benefit. This just makes the matic token risk similar to that of ERC20s that are erroneously
        // sent to the contract.
    }

    function _requireChainId(uint256 chainId) internal view {
        require(block.chainid == chainId, "Cannot run method on this chain");
    }
}

File 2 of 6 : IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

File 3 of 6 : SafeERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../../../utils/Address.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 SafeERC20 {
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 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(
        IERC20 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));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    /**
     * @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(IERC20 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");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

File 4 of 6 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev 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) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

File 5 of 6 : Lockable.sol
// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity ^0.8.0;

/**
 * @title A contract that provides modifiers to prevent reentrancy to state-changing and view-only methods. This contract
 * is inspired by https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/ReentrancyGuard.sol
 * and https://github.com/balancer-labs/balancer-core/blob/master/contracts/BPool.sol.
 * @dev The reason why we use this local contract instead of importing from uma/contracts is because of the addition
 * of the internal method `functionCallStackOriginatesFromOutsideThisContract` which doesn't exist in the one exported
 * by uma/contracts.
 */
contract Lockable {
    bool internal _notEntered;

    constructor() {
        // Storing an initial 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.
        _notEntered = true;
    }

    /**
     * @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 state modification.
     */
    modifier nonReentrant() {
        _preEntranceCheck();
        _preEntranceSet();
        _;
        _postEntranceReset();
    }

    /**
     * @dev Designed to prevent a view-only method from being re-entered during a call to a nonReentrant() state-changing method.
     */
    modifier nonReentrantView() {
        _preEntranceCheck();
        _;
    }

    /**
     * @dev Returns true if the contract is currently in a non-entered state, meaning that the origination of the call
     * came from outside the contract. This is relevant with fallback/receive methods to see if the call came from ETH
     * being dropped onto the contract externally or due to ETH dropped on the the contract from within a method in this
     * contract, such as unwrapping WETH to ETH within the contract.
     */
    function functionCallStackOriginatesFromOutsideThisContract() internal view returns (bool) {
        return _notEntered;
    }

    // Internal methods are used to avoid copying the require statement's bytecode to every nonReentrant() method.
    // On entry into a function, _preEntranceCheck() should always be called to check if the function is being
    // re-entered. Then, if the function modifies state, it should call _postEntranceSet(), perform its logic, and
    // then call _postEntranceReset().
    // View-only methods can simply call _preEntranceCheck() to make sure that it is not being re-entered.
    function _preEntranceCheck() internal view {
        // On the first call to nonReentrant, _notEntered will be true
        require(_notEntered, "ReentrancyGuard: reentrant call");
    }

    function _preEntranceSet() internal {
        // Any calls to nonReentrant after this point will fail
        _notEntered = false;
    }

    function _postEntranceReset() internal {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _notEntered = true;
    }
}

File 7 of 6 : WETH9.sol
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.0;

interface WETH9 {
    function withdraw(uint256 wad) external;

    function deposit() external payable;

    function balanceOf(address guy) external view returns (uint256 wad);

    function transfer(address guy, uint256 wad) external;
}

Settings
{
  "evmVersion": "london",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 1000000
  },
  "remappings": [],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_destination","type":"address"},{"internalType":"contract PolygonRegistry","name":"_l1PolygonRegistry","type":"address"},{"internalType":"contract WETH9","name":"_l1Weth","type":"address"},{"internalType":"address","name":"_l2WrappedMatic","type":"address"},{"internalType":"uint256","name":"_l1ChainId","type":"uint256"},{"internalType":"uint256","name":"_l2ChainId","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"callExit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"destination","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"l1ChainId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"l1PolygonRegistry","outputs":[{"internalType":"contract PolygonRegistry","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"l1Weth","outputs":[{"internalType":"contract WETH9","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"l2ChainId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"l2WrappedMatic","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maticToken","outputs":[{"internalType":"contract MaticToken","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"}],"name":"retrieve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract PolygonIERC20","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"send","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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Deployed Bytecode

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

000000000000000000000000c186fa914353c44b2e33ebe05f21846f1048beda00000000000000000000000033a02e6cc863d393d6bf231b697b82f6e499ca71000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc20000000000000000000000000d500b1d8e8ef31e21c99d1db9a6444d3adf127000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000089

-----Decoded View---------------
Arg [0] : _destination (address): 0xc186fA914353c44b2E33eBE05f21846F1048bEda
Arg [1] : _l1PolygonRegistry (address): 0x33a02E6cC863D393d6Bf231B697b82F6e499cA71
Arg [2] : _l1Weth (address): 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
Arg [3] : _l2WrappedMatic (address): 0x0d500B1d8E8eF31E21C99d1Db9A6444d3ADf1270
Arg [4] : _l1ChainId (uint256): 1
Arg [5] : _l2ChainId (uint256): 137

-----Encoded View---------------
6 Constructor Arguments found :
Arg [0] : 000000000000000000000000c186fa914353c44b2e33ebe05f21846f1048beda
Arg [1] : 00000000000000000000000033a02e6cc863d393d6bf231b697b82f6e499ca71
Arg [2] : 000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2
Arg [3] : 0000000000000000000000000d500b1d8e8ef31e21c99d1db9a6444d3adf1270
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000001
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000089


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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.