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/**
  *       .
  *      / \
  *     |.'.|
  *     |'.'|
  *   ,'|   |`.
  *  |,-'-|-'-.|
  *   __|_| |         _        _      _____           _
  *  | ___ \|        | |      | |    | ___ \         | |
  *  | |_/ /|__   ___| | _____| |_   | |_/ /__   ___ | |
  *  |    // _ \ / __| |/ / _ \ __|  |  __/ _ \ / _ \| |
  *  | |\ \ (_) | (__|   <  __/ |_   | | | (_) | (_) | |
  *  \_| \_\___/ \___|_|\_\___|\__|  \_|  \___/ \___/|_|
  * +---------------------------------------------------+
  * |    DECENTRALISED STAKING PROTOCOL FOR ETHEREUM    |
  * +---------------------------------------------------+
  *
  *  Rocket Pool is a first-of-its-kind Ethereum staking pool protocol, designed to
  *  be community-owned, decentralised, and trustless.
  *
  *  For more information about Rocket Pool, visit https://rocketpool.net
  *
  *  Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty
  *
  */

pragma solidity 0.7.6;

// SPDX-License-Identifier: GPL-3.0-only

import "@openzeppelin/contracts/math/SafeMath.sol";

import "../RocketBase.sol";
import "../../interface/util/AddressQueueStorageInterface.sol";

import "@openzeppelin/contracts/math/SafeMath.sol";

// Address queue storage helper for RocketStorage data (ring buffer implementation)

contract AddressQueueStorage is RocketBase, AddressQueueStorageInterface {

    // Libs
    using SafeMath for uint256;

    // Settings
    uint256 constant public capacity = 2 ** 255; // max uint256 / 2

    // Construct
    constructor(RocketStorageInterface _rocketStorageAddress) RocketBase(_rocketStorageAddress) {
        version = 1;
    }

    // The number of items in a queue
    function getLength(bytes32 _key) override public view returns (uint) {
        uint start = getUint(keccak256(abi.encodePacked(_key, ".start")));
        uint end = getUint(keccak256(abi.encodePacked(_key, ".end")));
        if (end < start) { end = end.add(capacity); }
        return end.sub(start);
    }

    // The item in a queue by index
    function getItem(bytes32 _key, uint _index) override external view returns (address) {
        uint index = getUint(keccak256(abi.encodePacked(_key, ".start"))).add(_index);
        if (index >= capacity) { index = index.sub(capacity); }
        return getAddress(keccak256(abi.encodePacked(_key, ".item", index)));
    }

    // The index of an item in a queue
    // Returns -1 if the value is not found
    function getIndexOf(bytes32 _key, address _value) override external view returns (int) {
        int index = int(getUint(keccak256(abi.encodePacked(_key, ".index", _value)))) - 1;
        if (index != -1) {
            index -= int(getUint(keccak256(abi.encodePacked(_key, ".start"))));
            if (index < 0) { index += int(capacity); }
        }
        return index;
    }

    // Add an item to the end of a queue
    // Requires that the queue is not at capacity
    // Requires that the item does not exist in the queue
    function enqueueItem(bytes32 _key, address _value) override external onlyLatestContract("addressQueueStorage", address(this)) onlyLatestNetworkContract {
        require(getLength(_key) < capacity.sub(1), "Queue is at capacity");
        require(getUint(keccak256(abi.encodePacked(_key, ".index", _value))) == 0, "Item already exists in queue");
        uint index = getUint(keccak256(abi.encodePacked(_key, ".end")));
        setAddress(keccak256(abi.encodePacked(_key, ".item", index)), _value);
        setUint(keccak256(abi.encodePacked(_key, ".index", _value)), index.add(1));
        index = index.add(1);
        if (index >= capacity) { index = index.sub(capacity); }
        setUint(keccak256(abi.encodePacked(_key, ".end")), index);
    }

    // Remove an item from the start of a queue and return it
    // Requires that the queue is not empty
    function dequeueItem(bytes32 _key) override external onlyLatestContract("addressQueueStorage", address(this)) onlyLatestNetworkContract returns (address) {
        require(getLength(_key) > 0, "Queue is empty");
        uint start = getUint(keccak256(abi.encodePacked(_key, ".start")));
        address item = getAddress(keccak256(abi.encodePacked(_key, ".item", start)));
        start = start.add(1);
        if (start >= capacity) { start = start.sub(capacity); }
        setUint(keccak256(abi.encodePacked(_key, ".index", item)), 0);
        setUint(keccak256(abi.encodePacked(_key, ".start")), start);
        return item;
    }

    // Remove an item from a queue
    // Swaps the item with the last item in the queue and truncates it; computationally cheap
    // Requires that the item exists in the queue
    function removeItem(bytes32 _key, address _value) override external onlyLatestContract("addressQueueStorage", address(this)) onlyLatestNetworkContract {
        uint index = getUint(keccak256(abi.encodePacked(_key, ".index", _value)));
        require(index-- > 0, "Item does not exist in queue");
        uint lastIndex = getUint(keccak256(abi.encodePacked(_key, ".end")));
        if (lastIndex == 0) lastIndex = capacity;
        lastIndex = lastIndex.sub(1);
        if (index != lastIndex) {
            address lastItem = getAddress(keccak256(abi.encodePacked(_key, ".item", lastIndex)));
            setAddress(keccak256(abi.encodePacked(_key, ".item", index)), lastItem);
            setUint(keccak256(abi.encodePacked(_key, ".index", lastItem)), index.add(1));
        }
        setUint(keccak256(abi.encodePacked(_key, ".index", _value)), 0);
        setUint(keccak256(abi.encodePacked(_key, ".end")), lastIndex);
    }

}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        uint256 c = a + b;
        if (c < a) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b > a) return (false, 0);
        return (true, a - b);
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) return (true, 0);
        uint256 c = a * b;
        if (c / a != b) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a / b);
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a % b);
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "SafeMath: subtraction overflow");
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) return 0;
        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");
        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: division by zero");
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: modulo by zero");
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        return a - b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryDiv}.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a % b;
    }
}

/**
  *       .
  *      / \
  *     |.'.|
  *     |'.'|
  *   ,'|   |`.
  *  |,-'-|-'-.|
  *   __|_| |         _        _      _____           _
  *  | ___ \|        | |      | |    | ___ \         | |
  *  | |_/ /|__   ___| | _____| |_   | |_/ /__   ___ | |
  *  |    // _ \ / __| |/ / _ \ __|  |  __/ _ \ / _ \| |
  *  | |\ \ (_) | (__|   <  __/ |_   | | | (_) | (_) | |
  *  \_| \_\___/ \___|_|\_\___|\__|  \_|  \___/ \___/|_|
  * +---------------------------------------------------+
  * |    DECENTRALISED STAKING PROTOCOL FOR ETHEREUM    |
  * +---------------------------------------------------+
  *
  *  Rocket Pool is a first-of-its-kind Ethereum staking pool protocol, designed to
  *  be community-owned, decentralised, and trustless.
  *
  *  For more information about Rocket Pool, visit https://rocketpool.net
  *
  *  Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty
  *
  */

pragma solidity 0.7.6;

// SPDX-License-Identifier: GPL-3.0-only

import "../interface/RocketStorageInterface.sol";

/// @title Base settings / modifiers for each contract in Rocket Pool
/// @author David Rugendyke

abstract contract RocketBase {

    // Calculate using this as the base
    uint256 constant calcBase = 1 ether;

    // Version of the contract
    uint8 public version;

    // The main storage contract where primary persistant storage is maintained
    RocketStorageInterface rocketStorage = RocketStorageInterface(0);


    /*** Modifiers **********************************************************/

    /**
    * @dev Throws if called by any sender that doesn't match a Rocket Pool network contract
    */
    modifier onlyLatestNetworkContract() {
        require(getBool(keccak256(abi.encodePacked("contract.exists", msg.sender))), "Invalid or outdated network contract");
        _;
    }

    /**
    * @dev Throws if called by any sender that doesn't match one of the supplied contract or is the latest version of that contract
    */
    modifier onlyLatestContract(string memory _contractName, address _contractAddress) {
        require(_contractAddress == getAddress(keccak256(abi.encodePacked("contract.address", _contractName))), "Invalid or outdated contract");
        _;
    }

    /**
    * @dev Throws if called by any sender that isn't a registered node
    */
    modifier onlyRegisteredNode(address _nodeAddress) {
        require(getBool(keccak256(abi.encodePacked("node.exists", _nodeAddress))), "Invalid node");
        _;
    }

    /**
    * @dev Throws if called by any sender that isn't a trusted node DAO member
    */
    modifier onlyTrustedNode(address _nodeAddress) {
        require(getBool(keccak256(abi.encodePacked("dao.trustednodes.", "member", _nodeAddress))), "Invalid trusted node");
        _;
    }

    /**
    * @dev Throws if called by any sender that isn't a registered minipool
    */
    modifier onlyRegisteredMinipool(address _minipoolAddress) {
        require(getBool(keccak256(abi.encodePacked("minipool.exists", _minipoolAddress))), "Invalid minipool");
        _;
    }
    

    /**
    * @dev Throws if called by any account other than a guardian account (temporary account allowed access to settings before DAO is fully enabled)
    */
    modifier onlyGuardian() {
        require(msg.sender == rocketStorage.getGuardian(), "Account is not a temporary guardian");
        _;
    }




    /*** Methods **********************************************************/

    /// @dev Set the main Rocket Storage address
    constructor(RocketStorageInterface _rocketStorageAddress) {
        // Update the contract address
        rocketStorage = RocketStorageInterface(_rocketStorageAddress);
    }


    /// @dev Get the address of a network contract by name
    function getContractAddress(string memory _contractName) internal view returns (address) {
        // Get the current contract address
        address contractAddress = getAddress(keccak256(abi.encodePacked("contract.address", _contractName)));
        // Check it
        require(contractAddress != address(0x0), "Contract not found");
        // Return
        return contractAddress;
    }


    /// @dev Get the address of a network contract by name (returns address(0x0) instead of reverting if contract does not exist)
    function getContractAddressUnsafe(string memory _contractName) internal view returns (address) {
        // Get the current contract address
        address contractAddress = getAddress(keccak256(abi.encodePacked("contract.address", _contractName)));
        // Return
        return contractAddress;
    }


    /// @dev Get the name of a network contract by address
    function getContractName(address _contractAddress) internal view returns (string memory) {
        // Get the contract name
        string memory contractName = getString(keccak256(abi.encodePacked("contract.name", _contractAddress)));
        // Check it
        require(bytes(contractName).length > 0, "Contract not found");
        // Return
        return contractName;
    }

    /// @dev Get revert error message from a .call method
    function getRevertMsg(bytes memory _returnData) internal pure returns (string memory) {
        // If the _res length is less than 68, then the transaction failed silently (without a revert message)
        if (_returnData.length < 68) return "Transaction reverted silently";
        assembly {
            // Slice the sighash.
            _returnData := add(_returnData, 0x04)
        }
        return abi.decode(_returnData, (string)); // All that remains is the revert string
    }



    /*** Rocket Storage Methods ****************************************/

    // Note: Unused helpers have been removed to keep contract sizes down

    /// @dev Storage get methods
    function getAddress(bytes32 _key) internal view returns (address) { return rocketStorage.getAddress(_key); }
    function getUint(bytes32 _key) internal view returns (uint) { return rocketStorage.getUint(_key); }
    function getString(bytes32 _key) internal view returns (string memory) { return rocketStorage.getString(_key); }
    function getBytes(bytes32 _key) internal view returns (bytes memory) { return rocketStorage.getBytes(_key); }
    function getBool(bytes32 _key) internal view returns (bool) { return rocketStorage.getBool(_key); }
    function getInt(bytes32 _key) internal view returns (int) { return rocketStorage.getInt(_key); }
    function getBytes32(bytes32 _key) internal view returns (bytes32) { return rocketStorage.getBytes32(_key); }

    /// @dev Storage set methods
    function setAddress(bytes32 _key, address _value) internal { rocketStorage.setAddress(_key, _value); }
    function setUint(bytes32 _key, uint _value) internal { rocketStorage.setUint(_key, _value); }
    function setString(bytes32 _key, string memory _value) internal { rocketStorage.setString(_key, _value); }
    function setBytes(bytes32 _key, bytes memory _value) internal { rocketStorage.setBytes(_key, _value); }
    function setBool(bytes32 _key, bool _value) internal { rocketStorage.setBool(_key, _value); }
    function setInt(bytes32 _key, int _value) internal { rocketStorage.setInt(_key, _value); }
    function setBytes32(bytes32 _key, bytes32 _value) internal { rocketStorage.setBytes32(_key, _value); }

    /// @dev Storage delete methods
    function deleteAddress(bytes32 _key) internal { rocketStorage.deleteAddress(_key); }
    function deleteUint(bytes32 _key) internal { rocketStorage.deleteUint(_key); }
    function deleteString(bytes32 _key) internal { rocketStorage.deleteString(_key); }
    function deleteBytes(bytes32 _key) internal { rocketStorage.deleteBytes(_key); }
    function deleteBool(bytes32 _key) internal { rocketStorage.deleteBool(_key); }
    function deleteInt(bytes32 _key) internal { rocketStorage.deleteInt(_key); }
    function deleteBytes32(bytes32 _key) internal { rocketStorage.deleteBytes32(_key); }

    /// @dev Storage arithmetic methods
    function addUint(bytes32 _key, uint256 _amount) internal { rocketStorage.addUint(_key, _amount); }
    function subUint(bytes32 _key, uint256 _amount) internal { rocketStorage.subUint(_key, _amount); }
}

/**
  *       .
  *      / \
  *     |.'.|
  *     |'.'|
  *   ,'|   |`.
  *  |,-'-|-'-.|
  *   __|_| |         _        _      _____           _
  *  | ___ \|        | |      | |    | ___ \         | |
  *  | |_/ /|__   ___| | _____| |_   | |_/ /__   ___ | |
  *  |    // _ \ / __| |/ / _ \ __|  |  __/ _ \ / _ \| |
  *  | |\ \ (_) | (__|   <  __/ |_   | | | (_) | (_) | |
  *  \_| \_\___/ \___|_|\_\___|\__|  \_|  \___/ \___/|_|
  * +---------------------------------------------------+
  * |    DECENTRALISED STAKING PROTOCOL FOR ETHEREUM    |
  * +---------------------------------------------------+
  *
  *  Rocket Pool is a first-of-its-kind Ethereum staking pool protocol, designed to
  *  be community-owned, decentralised, and trustless.
  *
  *  For more information about Rocket Pool, visit https://rocketpool.net
  *
  *  Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty
  *
  */

pragma solidity 0.7.6;

// SPDX-License-Identifier: GPL-3.0-only

interface RocketStorageInterface {

    // Deploy status
    function getDeployedStatus() external view returns (bool);

    // Guardian
    function getGuardian() external view returns(address);
    function setGuardian(address _newAddress) external;
    function confirmGuardian() external;

    // Getters
    function getAddress(bytes32 _key) external view returns (address);
    function getUint(bytes32 _key) external view returns (uint);
    function getString(bytes32 _key) external view returns (string memory);
    function getBytes(bytes32 _key) external view returns (bytes memory);
    function getBool(bytes32 _key) external view returns (bool);
    function getInt(bytes32 _key) external view returns (int);
    function getBytes32(bytes32 _key) external view returns (bytes32);

    // Setters
    function setAddress(bytes32 _key, address _value) external;
    function setUint(bytes32 _key, uint _value) external;
    function setString(bytes32 _key, string calldata _value) external;
    function setBytes(bytes32 _key, bytes calldata _value) external;
    function setBool(bytes32 _key, bool _value) external;
    function setInt(bytes32 _key, int _value) external;
    function setBytes32(bytes32 _key, bytes32 _value) external;

    // Deleters
    function deleteAddress(bytes32 _key) external;
    function deleteUint(bytes32 _key) external;
    function deleteString(bytes32 _key) external;
    function deleteBytes(bytes32 _key) external;
    function deleteBool(bytes32 _key) external;
    function deleteInt(bytes32 _key) external;
    function deleteBytes32(bytes32 _key) external;

    // Arithmetic
    function addUint(bytes32 _key, uint256 _amount) external;
    function subUint(bytes32 _key, uint256 _amount) external;

    // Protected storage
    function getNodeWithdrawalAddress(address _nodeAddress) external view returns (address);
    function getNodePendingWithdrawalAddress(address _nodeAddress) external view returns (address);
    function setWithdrawalAddress(address _nodeAddress, address _newWithdrawalAddress, bool _confirm) external;
    function confirmWithdrawalAddress(address _nodeAddress) external;
}

/**
  *       .
  *      / \
  *     |.'.|
  *     |'.'|
  *   ,'|   |`.
  *  |,-'-|-'-.|
  *   __|_| |         _        _      _____           _
  *  | ___ \|        | |      | |    | ___ \         | |
  *  | |_/ /|__   ___| | _____| |_   | |_/ /__   ___ | |
  *  |    // _ \ / __| |/ / _ \ __|  |  __/ _ \ / _ \| |
  *  | |\ \ (_) | (__|   <  __/ |_   | | | (_) | (_) | |
  *  \_| \_\___/ \___|_|\_\___|\__|  \_|  \___/ \___/|_|
  * +---------------------------------------------------+
  * |    DECENTRALISED STAKING PROTOCOL FOR ETHEREUM    |
  * +---------------------------------------------------+
  *
  *  Rocket Pool is a first-of-its-kind Ethereum staking pool protocol, designed to
  *  be community-owned, decentralised, and trustless.
  *
  *  For more information about Rocket Pool, visit https://rocketpool.net
  *
  *  Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty
  *
  */

pragma solidity 0.7.6;

// SPDX-License-Identifier: GPL-3.0-only

interface AddressQueueStorageInterface {
    function getLength(bytes32 _key) external view returns (uint);
    function getItem(bytes32 _key, uint _index) external view returns (address);
    function getIndexOf(bytes32 _key, address _value) external view returns (int);
    function enqueueItem(bytes32 _key, address _value) external;
    function dequeueItem(bytes32 _key) external returns (address);
    function removeItem(bytes32 _key, address _value) external;
}

{
  "remappings": [],
  "optimizer": {
    "enabled": true,
    "runs": 15000
  },
  "evmVersion": "istanbul",
  "libraries": {},
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

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[{"inputs":[{"internalType":"contract RocketStorageInterface","name":"_rocketStorageAddress","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"capacity","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_key","type":"bytes32"}],"name":"dequeueItem","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_key","type":"bytes32"},{"internalType":"address","name":"_value","type":"address"}],"name":"enqueueItem","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_key","type":"bytes32"},{"internalType":"address","name":"_value","type":"address"}],"name":"getIndexOf","outputs":[{"internalType":"int256","name":"","type":"int256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_key","type":"bytes32"},{"internalType":"uint256","name":"_index","type":"uint256"}],"name":"getItem","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_key","type":"bytes32"}],"name":"getLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_key","type":"bytes32"},{"internalType":"address","name":"_value","type":"address"}],"name":"removeItem","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"version","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"}]

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0000000000000000000000001d8f8f00cfa6758d7be78336684788fb0ee0fa46

-----Decoded View---------------
Arg [0] : _rocketStorageAddress (address): 0x1d8f8f00cfa6758d7bE78336684788Fb0ee0Fa46

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000001d8f8f00cfa6758d7be78336684788fb0ee0fa46