Token

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Is this a proxy?
• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (proxy/transparent/TransparentUpgradeableProxy.sol)

pragma solidity ^0.8.0;

import "../ERC1967/ERC1967Proxy.sol";

/**
 * @dev This contract implements a proxy that is upgradeable by an admin.
 *
 * To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector
 * clashing], which can potentially be used in an attack, this contract uses the
 * https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two
 * things that go hand in hand:
 *
 * 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if
 * that call matches one of the admin functions exposed by the proxy itself.
 * 2. If the admin calls the proxy, it can access the admin functions, but its calls will never be forwarded to the
 * implementation. If the admin tries to call a function on the implementation it will fail with an error that says
 * "admin cannot fallback to proxy target".
 *
 * These properties mean that the admin account can only be used for admin actions like upgrading the proxy or changing
 * the admin, so it's best if it's a dedicated account that is not used for anything else. This will avoid headaches due
 * to sudden errors when trying to call a function from the proxy implementation.
 *
 * Our recommendation is for the dedicated account to be an instance of the {ProxyAdmin} contract. If set up this way,
 * you should think of the `ProxyAdmin` instance as the real administrative interface of your proxy.
 */
contract TransparentUpgradeableProxy is ERC1967Proxy {
    /**
     * @dev Initializes an upgradeable proxy managed by `_admin`, backed by the implementation at `_logic`, and
     * optionally initialized with `_data` as explained in {ERC1967Proxy-constructor}.
     */
    constructor(
        address _logic,
        address admin_,
        bytes memory _data
    ) payable ERC1967Proxy(_logic, _data) {
        _changeAdmin(admin_);
    }

    /**
     * @dev Modifier used internally that will delegate the call to the implementation unless the sender is the admin.
     */
    modifier ifAdmin() {
        if (msg.sender == _getAdmin()) {
            _;
        } else {
            _fallback();
        }
    }

    /**
     * @dev Returns the current admin.
     *
     * NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyAdmin}.
     *
     * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
     * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
     * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
     */
    function admin() external ifAdmin returns (address admin_) {
        admin_ = _getAdmin();
    }

    /**
     * @dev Returns the current implementation.
     *
     * NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyImplementation}.
     *
     * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
     * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
     * `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc`
     */
    function implementation() external ifAdmin returns (address implementation_) {
        implementation_ = _implementation();
    }

    /**
     * @dev Changes the admin of the proxy.
     *
     * Emits an {AdminChanged} event.
     *
     * NOTE: Only the admin can call this function. See {ProxyAdmin-changeProxyAdmin}.
     */
    function changeAdmin(address newAdmin) external virtual ifAdmin {
        _changeAdmin(newAdmin);
    }

    /**
     * @dev Upgrade the implementation of the proxy.
     *
     * NOTE: Only the admin can call this function. See {ProxyAdmin-upgrade}.
     */
    function upgradeTo(address newImplementation) external ifAdmin {
        _upgradeToAndCall(newImplementation, bytes(""), false);
    }

    /**
     * @dev Upgrade the implementation of the proxy, and then call a function from the new implementation as specified
     * by `data`, which should be an encoded function call. This is useful to initialize new storage variables in the
     * proxied contract.
     *
     * NOTE: Only the admin can call this function. See {ProxyAdmin-upgradeAndCall}.
     */
    function upgradeToAndCall(address newImplementation, bytes calldata data) external payable ifAdmin {
        _upgradeToAndCall(newImplementation, data, true);
    }

    /**
     * @dev Returns the current admin.
     */
    function _admin() internal view virtual returns (address) {
        return _getAdmin();
    }

    /**
     * @dev Makes sure the admin cannot access the fallback function. See {Proxy-_beforeFallback}.
     */
    function _beforeFallback() internal virtual override {
        require(msg.sender != _getAdmin(), "TransparentUpgradeableProxy: admin cannot fallback to proxy target");
        super._beforeFallback();
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)

pragma solidity ^0.8.0;

/**
 * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
 * proxy whose upgrades are fully controlled by the current implementation.
 */
interface IERC1822Proxiable {
    /**
     * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
     * address.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy.
     */
    function proxiableUUID() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (proxy/ERC1967/ERC1967Proxy.sol)

pragma solidity ^0.8.0;

import "../Proxy.sol";
import "./ERC1967Upgrade.sol";

/**
 * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
 * implementation address that can be changed. This address is stored in storage in the location specified by
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
 * implementation behind the proxy.
 */
contract ERC1967Proxy is Proxy, ERC1967Upgrade {
    /**
     * @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`.
     *
     * If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded
     * function call, and allows initializing the storage of the proxy like a Solidity constructor.
     */
    constructor(address _logic, bytes memory _data) payable {
        _upgradeToAndCall(_logic, _data, false);
    }

    /**
     * @dev Returns the current implementation address.
     */
    function _implementation() internal view virtual override returns (address impl) {
        return ERC1967Upgrade._getImplementation();
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (proxy/ERC1967/ERC1967Upgrade.sol)

pragma solidity ^0.8.2;

import "../beacon/IBeacon.sol";
import "../../interfaces/draft-IERC1822.sol";
import "../../utils/Address.sol";
import "../../utils/StorageSlot.sol";

/**
 * @dev This abstract contract provides getters and event emitting update functions for
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
 *
 * _Available since v4.1._
 *
 * @custom:oz-upgrades-unsafe-allow delegatecall
 */
abstract contract ERC1967Upgrade {
    // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
    bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;

    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev Emitted when the implementation is upgraded.
     */
    event Upgraded(address indexed implementation);

    /**
     * @dev Returns the current implementation address.
     */
    function _getImplementation() internal view returns (address) {
        return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 implementation slot.
     */
    function _setImplementation(address newImplementation) private {
        require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
        StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
    }

    /**
     * @dev Perform implementation upgrade
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeTo(address newImplementation) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);
    }

    /**
     * @dev Perform implementation upgrade with additional setup call.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeToAndCall(
        address newImplementation,
        bytes memory data,
        bool forceCall
    ) internal {
        _upgradeTo(newImplementation);
        if (data.length > 0 || forceCall) {
            Address.functionDelegateCall(newImplementation, data);
        }
    }

    /**
     * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeToAndCallUUPS(
        address newImplementation,
        bytes memory data,
        bool forceCall
    ) internal {
        // Upgrades from old implementations will perform a rollback test. This test requires the new
        // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing
        // this special case will break upgrade paths from old UUPS implementation to new ones.
        if (StorageSlot.getBooleanSlot(_ROLLBACK_SLOT).value) {
            _setImplementation(newImplementation);
        } else {
            try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) {
                require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID");
            } catch {
                revert("ERC1967Upgrade: new implementation is not UUPS");
            }
            _upgradeToAndCall(newImplementation, data, forceCall);
        }
    }

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @dev Emitted when the admin account has changed.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Returns the current admin.
     */
    function _getAdmin() internal view returns (address) {
        return StorageSlot.getAddressSlot(_ADMIN_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 admin slot.
     */
    function _setAdmin(address newAdmin) private {
        require(newAdmin != address(0), "ERC1967: new admin is the zero address");
        StorageSlot.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
    }

    /**
     * @dev Changes the admin of the proxy.
     *
     * Emits an {AdminChanged} event.
     */
    function _changeAdmin(address newAdmin) internal {
        emit AdminChanged(_getAdmin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
     * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
     */
    bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;

    /**
     * @dev Emitted when the beacon is upgraded.
     */
    event BeaconUpgraded(address indexed beacon);

    /**
     * @dev Returns the current beacon.
     */
    function _getBeacon() internal view returns (address) {
        return StorageSlot.getAddressSlot(_BEACON_SLOT).value;
    }

    /**
     * @dev Stores a new beacon in the EIP1967 beacon slot.
     */
    function _setBeacon(address newBeacon) private {
        require(Address.isContract(newBeacon), "ERC1967: new beacon is not a contract");
        require(
            Address.isContract(IBeacon(newBeacon).implementation()),
            "ERC1967: beacon implementation is not a contract"
        );
        StorageSlot.getAddressSlot(_BEACON_SLOT).value = newBeacon;
    }

    /**
     * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
     * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
     *
     * Emits a {BeaconUpgraded} event.
     */
    function _upgradeBeaconToAndCall(
        address newBeacon,
        bytes memory data,
        bool forceCall
    ) internal {
        _setBeacon(newBeacon);
        emit BeaconUpgraded(newBeacon);
        if (data.length > 0 || forceCall) {
            Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol)

pragma solidity ^0.8.0;

/**
 * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
 * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
 * be specified by overriding the virtual {_implementation} function.
 *
 * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
 * different contract through the {_delegate} function.
 *
 * The success and return data of the delegated call will be returned back to the caller of the proxy.
 */
abstract contract Proxy {
    /**
     * @dev Delegates the current call to `implementation`.
     *
     * This function does not return to its internal call site, it will return directly to the external caller.
     */
    function _delegate(address implementation) internal virtual {
        assembly {
            // Copy msg.data. We take full control of memory in this inline assembly
            // block because it will not return to Solidity code. We overwrite the
            // Solidity scratch pad at memory position 0.
            calldatacopy(0, 0, calldatasize())

            // Call the implementation.
            // out and outsize are 0 because we don't know the size yet.
            let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)

            // Copy the returned data.
            returndatacopy(0, 0, returndatasize())

            switch result
            // delegatecall returns 0 on error.
            case 0 {
                revert(0, returndatasize())
            }
            default {
                return(0, returndatasize())
            }
        }
    }

    /**
     * @dev This is a virtual function that should be overridden so it returns the address to which the fallback function
     * and {_fallback} should delegate.
     */
    function _implementation() internal view virtual returns (address);

    /**
     * @dev Delegates the current call to the address returned by `_implementation()`.
     *
     * This function does not return to its internal call site, it will return directly to the external caller.
     */
    function _fallback() internal virtual {
        _beforeFallback();
        _delegate(_implementation());
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
     * function in the contract matches the call data.
     */
    fallback() external payable virtual {
        _fallback();
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
     * is empty.
     */
    receive() external payable virtual {
        _fallback();
    }

    /**
     * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
     * call, or as part of the Solidity `fallback` or `receive` functions.
     *
     * If overridden should call `super._beforeFallback()`.
     */
    function _beforeFallback() internal virtual {}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)

pragma solidity ^0.8.0;

/**
 * @dev This is the interface that {BeaconProxy} expects of its beacon.
 */
interface IBeacon {
    /**
     * @dev Must return an address that can be used as a delegate call target.
     *
     * {BeaconProxy} will check that this address is a contract.
     */
    function implementation() external view returns (address);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (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
                /// @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 (last updated v4.7.0) (utils/StorageSlot.sol)

pragma solidity ^0.8.0;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 *
 * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }
}

{
  "remappings": [
    "@arbitrum/nitro-contracts/=node_modules/@arbitrum/nitro-contracts/",
    "@arbitrum/token-bridge-contracts/=node_modules/@arbitrum/token-bridge-contracts/",
    "@openzeppelin/contracts-upgradeable/=node_modules/@openzeppelin/contracts-upgradeable/",
    "@openzeppelin/contracts/=node_modules/@openzeppelin/contracts/",
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "forge-std/=lib/forge-std/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 20000
  },
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "london",
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_logic","type":"address"},{"internalType":"address","name":"admin_","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"stateMutability":"payable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"previousAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"beacon","type":"address"}],"name":"BeaconUpgraded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"admin_","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newAdmin","type":"address"}],"name":"changeAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"implementation_","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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