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0xfCF277b60264931C8680bb150735ADa1aabDF4B2
 

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Set Signer171690762025-03-28 7:46:07302 days ago1743147967IN
0xfCF277b6...1aabDF4B2
0 ETH0.000000030.00098181

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170826602025-03-26 7:45:35304 days ago1742975135  Contract Creation0 ETH

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Contract Source Code Verified (Exact Match)

Contract Name:
AssetMinter

Compiler Version
v0.8.28+commit.7893614a

Optimization Enabled:
Yes with 200 runs

Other Settings:
paris EvmVersion
// SPDX-License-Identifier: MIT
//   __      __      .__   _____    ________
//  /  \    /  \____ |  |_/ ____\  /  _____/_____    _____   ____
//  \   \/\/   /  _ \|  |\   __\  /   \  ___\__  \  /     \_/ __ \
//   \        (  <_> )  |_|  |    \    \_\  \/ __ \|  Y Y  \  ___/
//    \__/\  / \____/|____/__|     \______  (____  /__|_|  /\___  >
//         \/                             \/     \/      \/     \/
pragma solidity ^0.8.28;

import {EIP712} from "solady/src/utils/EIP712.sol";
import {ECDSA} from "solady/src/utils/ECDSA.sol";
import {OwnableRoles} from "solady/src/auth/OwnableRoles.sol";
import {Initializable} from "solady/src/utils/Initializable.sol";
import {IWolfGameAsset} from "./interfaces/IWolfGameAsset.sol";

contract AssetMinter is EIP712, OwnableRoles, Initializable {
    uint256 public constant ADMIN_ROLE = _ROLE_0;

    bytes32 public constant MINT_TYPE_HASH =
        keccak256(
            "Mint(address asset,address to,uint96[] legacyTokenIds,uint256 expiry,uint256 nonce)"
        );

    string private constant EIP712_DOMAIN_NAME = "AssetMinter";
    string private constant EIP712_DOMAIN_VERSION = "1";

    address public signer;
    mapping(uint256 => bool) public isNonceUsed;

    event SignerSet(address indexed signer);
    event Minted(address indexed asset, uint96[] legacyTokenIds);

    error InvalidSignature();
    error InvalidNonce();
    error SignatureExpired();

    function __AssetMinter_init(
        address _owner,
        address _signer
    ) public initializer {
        _initializeOwner(_owner);

        signer = _signer;
    }

    function mint(
        address _asset,
        address _to,
        uint96[] calldata _legacyTokenIds,
        uint256 _expiry,
        uint256 _nonce,
        bytes calldata _signature
    ) external {
        bytes32 _message = keccak256(
            abi.encode(
                MINT_TYPE_HASH,
                _asset,
                _to,
                keccak256(abi.encodePacked(_legacyTokenIds)),
                _expiry,
                _nonce
            )
        );
        bytes32 _encoded = _hashTypedData(_message);

        if (ECDSA.recover(_encoded, _signature) != signer)
            revert InvalidSignature();
        if (isNonceUsed[_nonce]) revert InvalidNonce();
        if (block.timestamp > _expiry) revert SignatureExpired();

        isNonceUsed[_nonce] = true;

        IWolfGameAsset(_asset).mint(_to, _legacyTokenIds);

        emit Minted(_asset, _legacyTokenIds);
    }

    function mintAdmin(
        address _asset,
        address _to,
        uint96[] calldata _legacyTokenIds
    ) external onlyOwnerOrRoles(ADMIN_ROLE) {
        IWolfGameAsset(_asset).mint(_to, _legacyTokenIds);

        emit Minted(_asset, _legacyTokenIds);
    }

    function setSigner(address _signer) external onlyOwner {
        signer = _signer;

        emit SignerSet(_signer);
    }

    function _domainNameAndVersion()
        internal
        pure
        override
        returns (string memory _name, string memory _version)
    {
        _name = EIP712_DOMAIN_NAME;
        _version = EIP712_DOMAIN_VERSION;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.20;

import {IERC165} from "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC-721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon
     *   a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC-721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or
     *   {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon
     *   a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC-721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the address zero.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[ERC].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[ERC section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// SPDX-License-Identifier: MIT 
pragma solidity ^0.8.28;

import {IERC721} from "@openzeppelin/contracts/token/ERC721/IERC721.sol";

interface IWolfGameAsset is IERC721 {
    function burn(uint256 tokenId) external;
    function mint(
        address _to,
        uint96[] calldata _legacyTokenIds
    ) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Simple single owner authorization mixin.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/auth/Ownable.sol)
///
/// @dev Note:
/// This implementation does NOT auto-initialize the owner to `msg.sender`.
/// You MUST call the `_initializeOwner` in the constructor / initializer.
///
/// While the ownable portion follows
/// [EIP-173](https://eips.ethereum.org/EIPS/eip-173) for compatibility,
/// the nomenclature for the 2-step ownership handover may be unique to this codebase.
abstract contract Ownable {
    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                       CUSTOM ERRORS                        */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The caller is not authorized to call the function.
    error Unauthorized();

    /// @dev The `newOwner` cannot be the zero address.
    error NewOwnerIsZeroAddress();

    /// @dev The `pendingOwner` does not have a valid handover request.
    error NoHandoverRequest();

    /// @dev Cannot double-initialize.
    error AlreadyInitialized();

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                           EVENTS                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The ownership is transferred from `oldOwner` to `newOwner`.
    /// This event is intentionally kept the same as OpenZeppelin's Ownable to be
    /// compatible with indexers and [EIP-173](https://eips.ethereum.org/EIPS/eip-173),
    /// despite it not being as lightweight as a single argument event.
    event OwnershipTransferred(address indexed oldOwner, address indexed newOwner);

    /// @dev An ownership handover to `pendingOwner` has been requested.
    event OwnershipHandoverRequested(address indexed pendingOwner);

    /// @dev The ownership handover to `pendingOwner` has been canceled.
    event OwnershipHandoverCanceled(address indexed pendingOwner);

    /// @dev `keccak256(bytes("OwnershipTransferred(address,address)"))`.
    uint256 private constant _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE =
        0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0;

    /// @dev `keccak256(bytes("OwnershipHandoverRequested(address)"))`.
    uint256 private constant _OWNERSHIP_HANDOVER_REQUESTED_EVENT_SIGNATURE =
        0xdbf36a107da19e49527a7176a1babf963b4b0ff8cde35ee35d6cd8f1f9ac7e1d;

    /// @dev `keccak256(bytes("OwnershipHandoverCanceled(address)"))`.
    uint256 private constant _OWNERSHIP_HANDOVER_CANCELED_EVENT_SIGNATURE =
        0xfa7b8eab7da67f412cc9575ed43464468f9bfbae89d1675917346ca6d8fe3c92;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                          STORAGE                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The owner slot is given by:
    /// `bytes32(~uint256(uint32(bytes4(keccak256("_OWNER_SLOT_NOT")))))`.
    /// It is intentionally chosen to be a high value
    /// to avoid collision with lower slots.
    /// The choice of manual storage layout is to enable compatibility
    /// with both regular and upgradeable contracts.
    bytes32 internal constant _OWNER_SLOT =
        0xffffffffffffffffffffffffffffffffffffffffffffffffffffffff74873927;

    /// The ownership handover slot of `newOwner` is given by:
    /// ```
    ///     mstore(0x00, or(shl(96, user), _HANDOVER_SLOT_SEED))
    ///     let handoverSlot := keccak256(0x00, 0x20)
    /// ```
    /// It stores the expiry timestamp of the two-step ownership handover.
    uint256 private constant _HANDOVER_SLOT_SEED = 0x389a75e1;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                     INTERNAL FUNCTIONS                     */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Override to return true to make `_initializeOwner` prevent double-initialization.
    function _guardInitializeOwner() internal pure virtual returns (bool guard) {}

    /// @dev Initializes the owner directly without authorization guard.
    /// This function must be called upon initialization,
    /// regardless of whether the contract is upgradeable or not.
    /// This is to enable generalization to both regular and upgradeable contracts,
    /// and to save gas in case the initial owner is not the caller.
    /// For performance reasons, this function will not check if there
    /// is an existing owner.
    function _initializeOwner(address newOwner) internal virtual {
        if (_guardInitializeOwner()) {
            /// @solidity memory-safe-assembly
            assembly {
                let ownerSlot := _OWNER_SLOT
                if sload(ownerSlot) {
                    mstore(0x00, 0x0dc149f0) // `AlreadyInitialized()`.
                    revert(0x1c, 0x04)
                }
                // Clean the upper 96 bits.
                newOwner := shr(96, shl(96, newOwner))
                // Store the new value.
                sstore(ownerSlot, or(newOwner, shl(255, iszero(newOwner))))
                // Emit the {OwnershipTransferred} event.
                log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, 0, newOwner)
            }
        } else {
            /// @solidity memory-safe-assembly
            assembly {
                // Clean the upper 96 bits.
                newOwner := shr(96, shl(96, newOwner))
                // Store the new value.
                sstore(_OWNER_SLOT, newOwner)
                // Emit the {OwnershipTransferred} event.
                log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, 0, newOwner)
            }
        }
    }

    /// @dev Sets the owner directly without authorization guard.
    function _setOwner(address newOwner) internal virtual {
        if (_guardInitializeOwner()) {
            /// @solidity memory-safe-assembly
            assembly {
                let ownerSlot := _OWNER_SLOT
                // Clean the upper 96 bits.
                newOwner := shr(96, shl(96, newOwner))
                // Emit the {OwnershipTransferred} event.
                log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, sload(ownerSlot), newOwner)
                // Store the new value.
                sstore(ownerSlot, or(newOwner, shl(255, iszero(newOwner))))
            }
        } else {
            /// @solidity memory-safe-assembly
            assembly {
                let ownerSlot := _OWNER_SLOT
                // Clean the upper 96 bits.
                newOwner := shr(96, shl(96, newOwner))
                // Emit the {OwnershipTransferred} event.
                log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, sload(ownerSlot), newOwner)
                // Store the new value.
                sstore(ownerSlot, newOwner)
            }
        }
    }

    /// @dev Throws if the sender is not the owner.
    function _checkOwner() internal view virtual {
        /// @solidity memory-safe-assembly
        assembly {
            // If the caller is not the stored owner, revert.
            if iszero(eq(caller(), sload(_OWNER_SLOT))) {
                mstore(0x00, 0x82b42900) // `Unauthorized()`.
                revert(0x1c, 0x04)
            }
        }
    }

    /// @dev Returns how long a two-step ownership handover is valid for in seconds.
    /// Override to return a different value if needed.
    /// Made internal to conserve bytecode. Wrap it in a public function if needed.
    function _ownershipHandoverValidFor() internal view virtual returns (uint64) {
        return 48 * 3600;
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                  PUBLIC UPDATE FUNCTIONS                   */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Allows the owner to transfer the ownership to `newOwner`.
    function transferOwnership(address newOwner) public payable virtual onlyOwner {
        /// @solidity memory-safe-assembly
        assembly {
            if iszero(shl(96, newOwner)) {
                mstore(0x00, 0x7448fbae) // `NewOwnerIsZeroAddress()`.
                revert(0x1c, 0x04)
            }
        }
        _setOwner(newOwner);
    }

    /// @dev Allows the owner to renounce their ownership.
    function renounceOwnership() public payable virtual onlyOwner {
        _setOwner(address(0));
    }

    /// @dev Request a two-step ownership handover to the caller.
    /// The request will automatically expire in 48 hours (172800 seconds) by default.
    function requestOwnershipHandover() public payable virtual {
        unchecked {
            uint256 expires = block.timestamp + _ownershipHandoverValidFor();
            /// @solidity memory-safe-assembly
            assembly {
                // Compute and set the handover slot to `expires`.
                mstore(0x0c, _HANDOVER_SLOT_SEED)
                mstore(0x00, caller())
                sstore(keccak256(0x0c, 0x20), expires)
                // Emit the {OwnershipHandoverRequested} event.
                log2(0, 0, _OWNERSHIP_HANDOVER_REQUESTED_EVENT_SIGNATURE, caller())
            }
        }
    }

    /// @dev Cancels the two-step ownership handover to the caller, if any.
    function cancelOwnershipHandover() public payable virtual {
        /// @solidity memory-safe-assembly
        assembly {
            // Compute and set the handover slot to 0.
            mstore(0x0c, _HANDOVER_SLOT_SEED)
            mstore(0x00, caller())
            sstore(keccak256(0x0c, 0x20), 0)
            // Emit the {OwnershipHandoverCanceled} event.
            log2(0, 0, _OWNERSHIP_HANDOVER_CANCELED_EVENT_SIGNATURE, caller())
        }
    }

    /// @dev Allows the owner to complete the two-step ownership handover to `pendingOwner`.
    /// Reverts if there is no existing ownership handover requested by `pendingOwner`.
    function completeOwnershipHandover(address pendingOwner) public payable virtual onlyOwner {
        /// @solidity memory-safe-assembly
        assembly {
            // Compute and set the handover slot to 0.
            mstore(0x0c, _HANDOVER_SLOT_SEED)
            mstore(0x00, pendingOwner)
            let handoverSlot := keccak256(0x0c, 0x20)
            // If the handover does not exist, or has expired.
            if gt(timestamp(), sload(handoverSlot)) {
                mstore(0x00, 0x6f5e8818) // `NoHandoverRequest()`.
                revert(0x1c, 0x04)
            }
            // Set the handover slot to 0.
            sstore(handoverSlot, 0)
        }
        _setOwner(pendingOwner);
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                   PUBLIC READ FUNCTIONS                    */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Returns the owner of the contract.
    function owner() public view virtual returns (address result) {
        /// @solidity memory-safe-assembly
        assembly {
            result := sload(_OWNER_SLOT)
        }
    }

    /// @dev Returns the expiry timestamp for the two-step ownership handover to `pendingOwner`.
    function ownershipHandoverExpiresAt(address pendingOwner)
        public
        view
        virtual
        returns (uint256 result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            // Compute the handover slot.
            mstore(0x0c, _HANDOVER_SLOT_SEED)
            mstore(0x00, pendingOwner)
            // Load the handover slot.
            result := sload(keccak256(0x0c, 0x20))
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                         MODIFIERS                          */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Marks a function as only callable by the owner.
    modifier onlyOwner() virtual {
        _checkOwner();
        _;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import {Ownable} from "./Ownable.sol";

/// @notice Simple single owner and multiroles authorization mixin.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/auth/OwnableRoles.sol)
///
/// @dev Note:
/// This implementation does NOT auto-initialize the owner to `msg.sender`.
/// You MUST call the `_initializeOwner` in the constructor / initializer.
///
/// While the ownable portion follows
/// [EIP-173](https://eips.ethereum.org/EIPS/eip-173) for compatibility,
/// the nomenclature for the 2-step ownership handover may be unique to this codebase.
abstract contract OwnableRoles is Ownable {
    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                           EVENTS                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The `user`'s roles is updated to `roles`.
    /// Each bit of `roles` represents whether the role is set.
    event RolesUpdated(address indexed user, uint256 indexed roles);

    /// @dev `keccak256(bytes("RolesUpdated(address,uint256)"))`.
    uint256 private constant _ROLES_UPDATED_EVENT_SIGNATURE =
        0x715ad5ce61fc9595c7b415289d59cf203f23a94fa06f04af7e489a0a76e1fe26;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                          STORAGE                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The role slot of `user` is given by:
    /// ```
    ///     mstore(0x00, or(shl(96, user), _ROLE_SLOT_SEED))
    ///     let roleSlot := keccak256(0x00, 0x20)
    /// ```
    /// This automatically ignores the upper bits of the `user` in case
    /// they are not clean, as well as keep the `keccak256` under 32-bytes.
    ///
    /// Note: This is equivalent to `uint32(bytes4(keccak256("_OWNER_SLOT_NOT")))`.
    uint256 private constant _ROLE_SLOT_SEED = 0x8b78c6d8;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                     INTERNAL FUNCTIONS                     */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Overwrite the roles directly without authorization guard.
    function _setRoles(address user, uint256 roles) internal virtual {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x0c, _ROLE_SLOT_SEED)
            mstore(0x00, user)
            // Store the new value.
            sstore(keccak256(0x0c, 0x20), roles)
            // Emit the {RolesUpdated} event.
            log3(0, 0, _ROLES_UPDATED_EVENT_SIGNATURE, shr(96, mload(0x0c)), roles)
        }
    }

    /// @dev Updates the roles directly without authorization guard.
    /// If `on` is true, each set bit of `roles` will be turned on,
    /// otherwise, each set bit of `roles` will be turned off.
    function _updateRoles(address user, uint256 roles, bool on) internal virtual {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x0c, _ROLE_SLOT_SEED)
            mstore(0x00, user)
            let roleSlot := keccak256(0x0c, 0x20)
            // Load the current value.
            let current := sload(roleSlot)
            // Compute the updated roles if `on` is true.
            let updated := or(current, roles)
            // Compute the updated roles if `on` is false.
            // Use `and` to compute the intersection of `current` and `roles`,
            // `xor` it with `current` to flip the bits in the intersection.
            if iszero(on) { updated := xor(current, and(current, roles)) }
            // Then, store the new value.
            sstore(roleSlot, updated)
            // Emit the {RolesUpdated} event.
            log3(0, 0, _ROLES_UPDATED_EVENT_SIGNATURE, shr(96, mload(0x0c)), updated)
        }
    }

    /// @dev Grants the roles directly without authorization guard.
    /// Each bit of `roles` represents the role to turn on.
    function _grantRoles(address user, uint256 roles) internal virtual {
        _updateRoles(user, roles, true);
    }

    /// @dev Removes the roles directly without authorization guard.
    /// Each bit of `roles` represents the role to turn off.
    function _removeRoles(address user, uint256 roles) internal virtual {
        _updateRoles(user, roles, false);
    }

    /// @dev Throws if the sender does not have any of the `roles`.
    function _checkRoles(uint256 roles) internal view virtual {
        /// @solidity memory-safe-assembly
        assembly {
            // Compute the role slot.
            mstore(0x0c, _ROLE_SLOT_SEED)
            mstore(0x00, caller())
            // Load the stored value, and if the `and` intersection
            // of the value and `roles` is zero, revert.
            if iszero(and(sload(keccak256(0x0c, 0x20)), roles)) {
                mstore(0x00, 0x82b42900) // `Unauthorized()`.
                revert(0x1c, 0x04)
            }
        }
    }

    /// @dev Throws if the sender is not the owner,
    /// and does not have any of the `roles`.
    /// Checks for ownership first, then lazily checks for roles.
    function _checkOwnerOrRoles(uint256 roles) internal view virtual {
        /// @solidity memory-safe-assembly
        assembly {
            // If the caller is not the stored owner.
            // Note: `_ROLE_SLOT_SEED` is equal to `_OWNER_SLOT_NOT`.
            if iszero(eq(caller(), sload(not(_ROLE_SLOT_SEED)))) {
                // Compute the role slot.
                mstore(0x0c, _ROLE_SLOT_SEED)
                mstore(0x00, caller())
                // Load the stored value, and if the `and` intersection
                // of the value and `roles` is zero, revert.
                if iszero(and(sload(keccak256(0x0c, 0x20)), roles)) {
                    mstore(0x00, 0x82b42900) // `Unauthorized()`.
                    revert(0x1c, 0x04)
                }
            }
        }
    }

    /// @dev Throws if the sender does not have any of the `roles`,
    /// and is not the owner.
    /// Checks for roles first, then lazily checks for ownership.
    function _checkRolesOrOwner(uint256 roles) internal view virtual {
        /// @solidity memory-safe-assembly
        assembly {
            // Compute the role slot.
            mstore(0x0c, _ROLE_SLOT_SEED)
            mstore(0x00, caller())
            // Load the stored value, and if the `and` intersection
            // of the value and `roles` is zero, revert.
            if iszero(and(sload(keccak256(0x0c, 0x20)), roles)) {
                // If the caller is not the stored owner.
                // Note: `_ROLE_SLOT_SEED` is equal to `_OWNER_SLOT_NOT`.
                if iszero(eq(caller(), sload(not(_ROLE_SLOT_SEED)))) {
                    mstore(0x00, 0x82b42900) // `Unauthorized()`.
                    revert(0x1c, 0x04)
                }
            }
        }
    }

    /// @dev Convenience function to return a `roles` bitmap from an array of `ordinals`.
    /// This is meant for frontends like Etherscan, and is therefore not fully optimized.
    /// Not recommended to be called on-chain.
    /// Made internal to conserve bytecode. Wrap it in a public function if needed.
    function _rolesFromOrdinals(uint8[] memory ordinals) internal pure returns (uint256 roles) {
        /// @solidity memory-safe-assembly
        assembly {
            for { let i := shl(5, mload(ordinals)) } i { i := sub(i, 0x20) } {
                // We don't need to mask the values of `ordinals`, as Solidity
                // cleans dirty upper bits when storing variables into memory.
                roles := or(shl(mload(add(ordinals, i)), 1), roles)
            }
        }
    }

    /// @dev Convenience function to return an array of `ordinals` from the `roles` bitmap.
    /// This is meant for frontends like Etherscan, and is therefore not fully optimized.
    /// Not recommended to be called on-chain.
    /// Made internal to conserve bytecode. Wrap it in a public function if needed.
    function _ordinalsFromRoles(uint256 roles) internal pure returns (uint8[] memory ordinals) {
        /// @solidity memory-safe-assembly
        assembly {
            // Grab the pointer to the free memory.
            ordinals := mload(0x40)
            let ptr := add(ordinals, 0x20)
            let o := 0
            // The absence of lookup tables, De Bruijn, etc., here is intentional for
            // smaller bytecode, as this function is not meant to be called on-chain.
            for { let t := roles } 1 {} {
                mstore(ptr, o)
                // `shr` 5 is equivalent to multiplying by 0x20.
                // Push back into the ordinals array if the bit is set.
                ptr := add(ptr, shl(5, and(t, 1)))
                o := add(o, 1)
                t := shr(o, roles)
                if iszero(t) { break }
            }
            // Store the length of `ordinals`.
            mstore(ordinals, shr(5, sub(ptr, add(ordinals, 0x20))))
            // Allocate the memory.
            mstore(0x40, ptr)
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                  PUBLIC UPDATE FUNCTIONS                   */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Allows the owner to grant `user` `roles`.
    /// If the `user` already has a role, then it will be an no-op for the role.
    function grantRoles(address user, uint256 roles) public payable virtual onlyOwner {
        _grantRoles(user, roles);
    }

    /// @dev Allows the owner to remove `user` `roles`.
    /// If the `user` does not have a role, then it will be an no-op for the role.
    function revokeRoles(address user, uint256 roles) public payable virtual onlyOwner {
        _removeRoles(user, roles);
    }

    /// @dev Allow the caller to remove their own roles.
    /// If the caller does not have a role, then it will be an no-op for the role.
    function renounceRoles(uint256 roles) public payable virtual {
        _removeRoles(msg.sender, roles);
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                   PUBLIC READ FUNCTIONS                    */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Returns the roles of `user`.
    function rolesOf(address user) public view virtual returns (uint256 roles) {
        /// @solidity memory-safe-assembly
        assembly {
            // Compute the role slot.
            mstore(0x0c, _ROLE_SLOT_SEED)
            mstore(0x00, user)
            // Load the stored value.
            roles := sload(keccak256(0x0c, 0x20))
        }
    }

    /// @dev Returns whether `user` has any of `roles`.
    function hasAnyRole(address user, uint256 roles) public view virtual returns (bool) {
        return rolesOf(user) & roles != 0;
    }

    /// @dev Returns whether `user` has all of `roles`.
    function hasAllRoles(address user, uint256 roles) public view virtual returns (bool) {
        return rolesOf(user) & roles == roles;
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                         MODIFIERS                          */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Marks a function as only callable by an account with `roles`.
    modifier onlyRoles(uint256 roles) virtual {
        _checkRoles(roles);
        _;
    }

    /// @dev Marks a function as only callable by the owner or by an account
    /// with `roles`. Checks for ownership first, then lazily checks for roles.
    modifier onlyOwnerOrRoles(uint256 roles) virtual {
        _checkOwnerOrRoles(roles);
        _;
    }

    /// @dev Marks a function as only callable by an account with `roles`
    /// or the owner. Checks for roles first, then lazily checks for ownership.
    modifier onlyRolesOrOwner(uint256 roles) virtual {
        _checkRolesOrOwner(roles);
        _;
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                       ROLE CONSTANTS                       */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    // IYKYK

    uint256 internal constant _ROLE_0 = 1 << 0;
    uint256 internal constant _ROLE_1 = 1 << 1;
    uint256 internal constant _ROLE_2 = 1 << 2;
    uint256 internal constant _ROLE_3 = 1 << 3;
    uint256 internal constant _ROLE_4 = 1 << 4;
    uint256 internal constant _ROLE_5 = 1 << 5;
    uint256 internal constant _ROLE_6 = 1 << 6;
    uint256 internal constant _ROLE_7 = 1 << 7;
    uint256 internal constant _ROLE_8 = 1 << 8;
    uint256 internal constant _ROLE_9 = 1 << 9;
    uint256 internal constant _ROLE_10 = 1 << 10;
    uint256 internal constant _ROLE_11 = 1 << 11;
    uint256 internal constant _ROLE_12 = 1 << 12;
    uint256 internal constant _ROLE_13 = 1 << 13;
    uint256 internal constant _ROLE_14 = 1 << 14;
    uint256 internal constant _ROLE_15 = 1 << 15;
    uint256 internal constant _ROLE_16 = 1 << 16;
    uint256 internal constant _ROLE_17 = 1 << 17;
    uint256 internal constant _ROLE_18 = 1 << 18;
    uint256 internal constant _ROLE_19 = 1 << 19;
    uint256 internal constant _ROLE_20 = 1 << 20;
    uint256 internal constant _ROLE_21 = 1 << 21;
    uint256 internal constant _ROLE_22 = 1 << 22;
    uint256 internal constant _ROLE_23 = 1 << 23;
    uint256 internal constant _ROLE_24 = 1 << 24;
    uint256 internal constant _ROLE_25 = 1 << 25;
    uint256 internal constant _ROLE_26 = 1 << 26;
    uint256 internal constant _ROLE_27 = 1 << 27;
    uint256 internal constant _ROLE_28 = 1 << 28;
    uint256 internal constant _ROLE_29 = 1 << 29;
    uint256 internal constant _ROLE_30 = 1 << 30;
    uint256 internal constant _ROLE_31 = 1 << 31;
    uint256 internal constant _ROLE_32 = 1 << 32;
    uint256 internal constant _ROLE_33 = 1 << 33;
    uint256 internal constant _ROLE_34 = 1 << 34;
    uint256 internal constant _ROLE_35 = 1 << 35;
    uint256 internal constant _ROLE_36 = 1 << 36;
    uint256 internal constant _ROLE_37 = 1 << 37;
    uint256 internal constant _ROLE_38 = 1 << 38;
    uint256 internal constant _ROLE_39 = 1 << 39;
    uint256 internal constant _ROLE_40 = 1 << 40;
    uint256 internal constant _ROLE_41 = 1 << 41;
    uint256 internal constant _ROLE_42 = 1 << 42;
    uint256 internal constant _ROLE_43 = 1 << 43;
    uint256 internal constant _ROLE_44 = 1 << 44;
    uint256 internal constant _ROLE_45 = 1 << 45;
    uint256 internal constant _ROLE_46 = 1 << 46;
    uint256 internal constant _ROLE_47 = 1 << 47;
    uint256 internal constant _ROLE_48 = 1 << 48;
    uint256 internal constant _ROLE_49 = 1 << 49;
    uint256 internal constant _ROLE_50 = 1 << 50;
    uint256 internal constant _ROLE_51 = 1 << 51;
    uint256 internal constant _ROLE_52 = 1 << 52;
    uint256 internal constant _ROLE_53 = 1 << 53;
    uint256 internal constant _ROLE_54 = 1 << 54;
    uint256 internal constant _ROLE_55 = 1 << 55;
    uint256 internal constant _ROLE_56 = 1 << 56;
    uint256 internal constant _ROLE_57 = 1 << 57;
    uint256 internal constant _ROLE_58 = 1 << 58;
    uint256 internal constant _ROLE_59 = 1 << 59;
    uint256 internal constant _ROLE_60 = 1 << 60;
    uint256 internal constant _ROLE_61 = 1 << 61;
    uint256 internal constant _ROLE_62 = 1 << 62;
    uint256 internal constant _ROLE_63 = 1 << 63;
    uint256 internal constant _ROLE_64 = 1 << 64;
    uint256 internal constant _ROLE_65 = 1 << 65;
    uint256 internal constant _ROLE_66 = 1 << 66;
    uint256 internal constant _ROLE_67 = 1 << 67;
    uint256 internal constant _ROLE_68 = 1 << 68;
    uint256 internal constant _ROLE_69 = 1 << 69;
    uint256 internal constant _ROLE_70 = 1 << 70;
    uint256 internal constant _ROLE_71 = 1 << 71;
    uint256 internal constant _ROLE_72 = 1 << 72;
    uint256 internal constant _ROLE_73 = 1 << 73;
    uint256 internal constant _ROLE_74 = 1 << 74;
    uint256 internal constant _ROLE_75 = 1 << 75;
    uint256 internal constant _ROLE_76 = 1 << 76;
    uint256 internal constant _ROLE_77 = 1 << 77;
    uint256 internal constant _ROLE_78 = 1 << 78;
    uint256 internal constant _ROLE_79 = 1 << 79;
    uint256 internal constant _ROLE_80 = 1 << 80;
    uint256 internal constant _ROLE_81 = 1 << 81;
    uint256 internal constant _ROLE_82 = 1 << 82;
    uint256 internal constant _ROLE_83 = 1 << 83;
    uint256 internal constant _ROLE_84 = 1 << 84;
    uint256 internal constant _ROLE_85 = 1 << 85;
    uint256 internal constant _ROLE_86 = 1 << 86;
    uint256 internal constant _ROLE_87 = 1 << 87;
    uint256 internal constant _ROLE_88 = 1 << 88;
    uint256 internal constant _ROLE_89 = 1 << 89;
    uint256 internal constant _ROLE_90 = 1 << 90;
    uint256 internal constant _ROLE_91 = 1 << 91;
    uint256 internal constant _ROLE_92 = 1 << 92;
    uint256 internal constant _ROLE_93 = 1 << 93;
    uint256 internal constant _ROLE_94 = 1 << 94;
    uint256 internal constant _ROLE_95 = 1 << 95;
    uint256 internal constant _ROLE_96 = 1 << 96;
    uint256 internal constant _ROLE_97 = 1 << 97;
    uint256 internal constant _ROLE_98 = 1 << 98;
    uint256 internal constant _ROLE_99 = 1 << 99;
    uint256 internal constant _ROLE_100 = 1 << 100;
    uint256 internal constant _ROLE_101 = 1 << 101;
    uint256 internal constant _ROLE_102 = 1 << 102;
    uint256 internal constant _ROLE_103 = 1 << 103;
    uint256 internal constant _ROLE_104 = 1 << 104;
    uint256 internal constant _ROLE_105 = 1 << 105;
    uint256 internal constant _ROLE_106 = 1 << 106;
    uint256 internal constant _ROLE_107 = 1 << 107;
    uint256 internal constant _ROLE_108 = 1 << 108;
    uint256 internal constant _ROLE_109 = 1 << 109;
    uint256 internal constant _ROLE_110 = 1 << 110;
    uint256 internal constant _ROLE_111 = 1 << 111;
    uint256 internal constant _ROLE_112 = 1 << 112;
    uint256 internal constant _ROLE_113 = 1 << 113;
    uint256 internal constant _ROLE_114 = 1 << 114;
    uint256 internal constant _ROLE_115 = 1 << 115;
    uint256 internal constant _ROLE_116 = 1 << 116;
    uint256 internal constant _ROLE_117 = 1 << 117;
    uint256 internal constant _ROLE_118 = 1 << 118;
    uint256 internal constant _ROLE_119 = 1 << 119;
    uint256 internal constant _ROLE_120 = 1 << 120;
    uint256 internal constant _ROLE_121 = 1 << 121;
    uint256 internal constant _ROLE_122 = 1 << 122;
    uint256 internal constant _ROLE_123 = 1 << 123;
    uint256 internal constant _ROLE_124 = 1 << 124;
    uint256 internal constant _ROLE_125 = 1 << 125;
    uint256 internal constant _ROLE_126 = 1 << 126;
    uint256 internal constant _ROLE_127 = 1 << 127;
    uint256 internal constant _ROLE_128 = 1 << 128;
    uint256 internal constant _ROLE_129 = 1 << 129;
    uint256 internal constant _ROLE_130 = 1 << 130;
    uint256 internal constant _ROLE_131 = 1 << 131;
    uint256 internal constant _ROLE_132 = 1 << 132;
    uint256 internal constant _ROLE_133 = 1 << 133;
    uint256 internal constant _ROLE_134 = 1 << 134;
    uint256 internal constant _ROLE_135 = 1 << 135;
    uint256 internal constant _ROLE_136 = 1 << 136;
    uint256 internal constant _ROLE_137 = 1 << 137;
    uint256 internal constant _ROLE_138 = 1 << 138;
    uint256 internal constant _ROLE_139 = 1 << 139;
    uint256 internal constant _ROLE_140 = 1 << 140;
    uint256 internal constant _ROLE_141 = 1 << 141;
    uint256 internal constant _ROLE_142 = 1 << 142;
    uint256 internal constant _ROLE_143 = 1 << 143;
    uint256 internal constant _ROLE_144 = 1 << 144;
    uint256 internal constant _ROLE_145 = 1 << 145;
    uint256 internal constant _ROLE_146 = 1 << 146;
    uint256 internal constant _ROLE_147 = 1 << 147;
    uint256 internal constant _ROLE_148 = 1 << 148;
    uint256 internal constant _ROLE_149 = 1 << 149;
    uint256 internal constant _ROLE_150 = 1 << 150;
    uint256 internal constant _ROLE_151 = 1 << 151;
    uint256 internal constant _ROLE_152 = 1 << 152;
    uint256 internal constant _ROLE_153 = 1 << 153;
    uint256 internal constant _ROLE_154 = 1 << 154;
    uint256 internal constant _ROLE_155 = 1 << 155;
    uint256 internal constant _ROLE_156 = 1 << 156;
    uint256 internal constant _ROLE_157 = 1 << 157;
    uint256 internal constant _ROLE_158 = 1 << 158;
    uint256 internal constant _ROLE_159 = 1 << 159;
    uint256 internal constant _ROLE_160 = 1 << 160;
    uint256 internal constant _ROLE_161 = 1 << 161;
    uint256 internal constant _ROLE_162 = 1 << 162;
    uint256 internal constant _ROLE_163 = 1 << 163;
    uint256 internal constant _ROLE_164 = 1 << 164;
    uint256 internal constant _ROLE_165 = 1 << 165;
    uint256 internal constant _ROLE_166 = 1 << 166;
    uint256 internal constant _ROLE_167 = 1 << 167;
    uint256 internal constant _ROLE_168 = 1 << 168;
    uint256 internal constant _ROLE_169 = 1 << 169;
    uint256 internal constant _ROLE_170 = 1 << 170;
    uint256 internal constant _ROLE_171 = 1 << 171;
    uint256 internal constant _ROLE_172 = 1 << 172;
    uint256 internal constant _ROLE_173 = 1 << 173;
    uint256 internal constant _ROLE_174 = 1 << 174;
    uint256 internal constant _ROLE_175 = 1 << 175;
    uint256 internal constant _ROLE_176 = 1 << 176;
    uint256 internal constant _ROLE_177 = 1 << 177;
    uint256 internal constant _ROLE_178 = 1 << 178;
    uint256 internal constant _ROLE_179 = 1 << 179;
    uint256 internal constant _ROLE_180 = 1 << 180;
    uint256 internal constant _ROLE_181 = 1 << 181;
    uint256 internal constant _ROLE_182 = 1 << 182;
    uint256 internal constant _ROLE_183 = 1 << 183;
    uint256 internal constant _ROLE_184 = 1 << 184;
    uint256 internal constant _ROLE_185 = 1 << 185;
    uint256 internal constant _ROLE_186 = 1 << 186;
    uint256 internal constant _ROLE_187 = 1 << 187;
    uint256 internal constant _ROLE_188 = 1 << 188;
    uint256 internal constant _ROLE_189 = 1 << 189;
    uint256 internal constant _ROLE_190 = 1 << 190;
    uint256 internal constant _ROLE_191 = 1 << 191;
    uint256 internal constant _ROLE_192 = 1 << 192;
    uint256 internal constant _ROLE_193 = 1 << 193;
    uint256 internal constant _ROLE_194 = 1 << 194;
    uint256 internal constant _ROLE_195 = 1 << 195;
    uint256 internal constant _ROLE_196 = 1 << 196;
    uint256 internal constant _ROLE_197 = 1 << 197;
    uint256 internal constant _ROLE_198 = 1 << 198;
    uint256 internal constant _ROLE_199 = 1 << 199;
    uint256 internal constant _ROLE_200 = 1 << 200;
    uint256 internal constant _ROLE_201 = 1 << 201;
    uint256 internal constant _ROLE_202 = 1 << 202;
    uint256 internal constant _ROLE_203 = 1 << 203;
    uint256 internal constant _ROLE_204 = 1 << 204;
    uint256 internal constant _ROLE_205 = 1 << 205;
    uint256 internal constant _ROLE_206 = 1 << 206;
    uint256 internal constant _ROLE_207 = 1 << 207;
    uint256 internal constant _ROLE_208 = 1 << 208;
    uint256 internal constant _ROLE_209 = 1 << 209;
    uint256 internal constant _ROLE_210 = 1 << 210;
    uint256 internal constant _ROLE_211 = 1 << 211;
    uint256 internal constant _ROLE_212 = 1 << 212;
    uint256 internal constant _ROLE_213 = 1 << 213;
    uint256 internal constant _ROLE_214 = 1 << 214;
    uint256 internal constant _ROLE_215 = 1 << 215;
    uint256 internal constant _ROLE_216 = 1 << 216;
    uint256 internal constant _ROLE_217 = 1 << 217;
    uint256 internal constant _ROLE_218 = 1 << 218;
    uint256 internal constant _ROLE_219 = 1 << 219;
    uint256 internal constant _ROLE_220 = 1 << 220;
    uint256 internal constant _ROLE_221 = 1 << 221;
    uint256 internal constant _ROLE_222 = 1 << 222;
    uint256 internal constant _ROLE_223 = 1 << 223;
    uint256 internal constant _ROLE_224 = 1 << 224;
    uint256 internal constant _ROLE_225 = 1 << 225;
    uint256 internal constant _ROLE_226 = 1 << 226;
    uint256 internal constant _ROLE_227 = 1 << 227;
    uint256 internal constant _ROLE_228 = 1 << 228;
    uint256 internal constant _ROLE_229 = 1 << 229;
    uint256 internal constant _ROLE_230 = 1 << 230;
    uint256 internal constant _ROLE_231 = 1 << 231;
    uint256 internal constant _ROLE_232 = 1 << 232;
    uint256 internal constant _ROLE_233 = 1 << 233;
    uint256 internal constant _ROLE_234 = 1 << 234;
    uint256 internal constant _ROLE_235 = 1 << 235;
    uint256 internal constant _ROLE_236 = 1 << 236;
    uint256 internal constant _ROLE_237 = 1 << 237;
    uint256 internal constant _ROLE_238 = 1 << 238;
    uint256 internal constant _ROLE_239 = 1 << 239;
    uint256 internal constant _ROLE_240 = 1 << 240;
    uint256 internal constant _ROLE_241 = 1 << 241;
    uint256 internal constant _ROLE_242 = 1 << 242;
    uint256 internal constant _ROLE_243 = 1 << 243;
    uint256 internal constant _ROLE_244 = 1 << 244;
    uint256 internal constant _ROLE_245 = 1 << 245;
    uint256 internal constant _ROLE_246 = 1 << 246;
    uint256 internal constant _ROLE_247 = 1 << 247;
    uint256 internal constant _ROLE_248 = 1 << 248;
    uint256 internal constant _ROLE_249 = 1 << 249;
    uint256 internal constant _ROLE_250 = 1 << 250;
    uint256 internal constant _ROLE_251 = 1 << 251;
    uint256 internal constant _ROLE_252 = 1 << 252;
    uint256 internal constant _ROLE_253 = 1 << 253;
    uint256 internal constant _ROLE_254 = 1 << 254;
    uint256 internal constant _ROLE_255 = 1 << 255;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Gas optimized ECDSA wrapper.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/ECDSA.sol)
/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/ECDSA.sol)
/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/cryptography/ECDSA.sol)
///
/// @dev Note:
/// - The recovery functions use the ecrecover precompile (0x1).
/// - As of Solady version 0.0.68, the `recover` variants will revert upon recovery failure.
///   This is for more safety by default.
///   Use the `tryRecover` variants if you need to get the zero address back
///   upon recovery failure instead.
/// - As of Solady version 0.0.134, all `bytes signature` variants accept both
///   regular 65-byte `(r, s, v)` and EIP-2098 `(r, vs)` short form signatures.
///   See: https://eips.ethereum.org/EIPS/eip-2098
///   This is for calldata efficiency on smart accounts prevalent on L2s.
///
/// WARNING! Do NOT directly use signatures as unique identifiers:
/// - The recovery operations do NOT check if a signature is non-malleable.
/// - Use a nonce in the digest to prevent replay attacks on the same contract.
/// - Use EIP-712 for the digest to prevent replay attacks across different chains and contracts.
///   EIP-712 also enables readable signing of typed data for better user safety.
/// - If you need a unique hash from a signature, please use the `canonicalHash` functions.
library ECDSA {
    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                         CONSTANTS                          */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The order of the secp256k1 elliptic curve.
    uint256 internal constant N = 0xfffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141;

    /// @dev `N/2 + 1`. Used for checking the malleability of the signature.
    uint256 private constant _HALF_N_PLUS_1 =
        0x7fffffffffffffffffffffffffffffff5d576e7357a4501ddfe92f46681b20a1;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                        CUSTOM ERRORS                       */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The signature is invalid.
    error InvalidSignature();

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                    RECOVERY OPERATIONS                     */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Recovers the signer's address from a message digest `hash`, and the `signature`.
    function recover(bytes32 hash, bytes memory signature) internal view returns (address result) {
        /// @solidity memory-safe-assembly
        assembly {
            for { let m := mload(0x40) } 1 {
                mstore(0x00, 0x8baa579f) // `InvalidSignature()`.
                revert(0x1c, 0x04)
            } {
                switch mload(signature)
                case 64 {
                    let vs := mload(add(signature, 0x40))
                    mstore(0x20, add(shr(255, vs), 27)) // `v`.
                    mstore(0x60, shr(1, shl(1, vs))) // `s`.
                }
                case 65 {
                    mstore(0x20, byte(0, mload(add(signature, 0x60)))) // `v`.
                    mstore(0x60, mload(add(signature, 0x40))) // `s`.
                }
                default { continue }
                mstore(0x00, hash)
                mstore(0x40, mload(add(signature, 0x20))) // `r`.
                result := mload(staticcall(gas(), 1, 0x00, 0x80, 0x01, 0x20))
                mstore(0x60, 0) // Restore the zero slot.
                mstore(0x40, m) // Restore the free memory pointer.
                // `returndatasize()` will be `0x20` upon success, and `0x00` otherwise.
                if returndatasize() { break }
            }
        }
    }

    /// @dev Recovers the signer's address from a message digest `hash`, and the `signature`.
    function recoverCalldata(bytes32 hash, bytes calldata signature)
        internal
        view
        returns (address result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            for { let m := mload(0x40) } 1 {
                mstore(0x00, 0x8baa579f) // `InvalidSignature()`.
                revert(0x1c, 0x04)
            } {
                switch signature.length
                case 64 {
                    let vs := calldataload(add(signature.offset, 0x20))
                    mstore(0x20, add(shr(255, vs), 27)) // `v`.
                    mstore(0x40, calldataload(signature.offset)) // `r`.
                    mstore(0x60, shr(1, shl(1, vs))) // `s`.
                }
                case 65 {
                    mstore(0x20, byte(0, calldataload(add(signature.offset, 0x40)))) // `v`.
                    calldatacopy(0x40, signature.offset, 0x40) // Copy `r` and `s`.
                }
                default { continue }
                mstore(0x00, hash)
                result := mload(staticcall(gas(), 1, 0x00, 0x80, 0x01, 0x20))
                mstore(0x60, 0) // Restore the zero slot.
                mstore(0x40, m) // Restore the free memory pointer.
                // `returndatasize()` will be `0x20` upon success, and `0x00` otherwise.
                if returndatasize() { break }
            }
        }
    }

    /// @dev Recovers the signer's address from a message digest `hash`,
    /// and the EIP-2098 short form signature defined by `r` and `vs`.
    function recover(bytes32 hash, bytes32 r, bytes32 vs) internal view returns (address result) {
        /// @solidity memory-safe-assembly
        assembly {
            let m := mload(0x40) // Cache the free memory pointer.
            mstore(0x00, hash)
            mstore(0x20, add(shr(255, vs), 27)) // `v`.
            mstore(0x40, r)
            mstore(0x60, shr(1, shl(1, vs))) // `s`.
            result := mload(staticcall(gas(), 1, 0x00, 0x80, 0x01, 0x20))
            // `returndatasize()` will be `0x20` upon success, and `0x00` otherwise.
            if iszero(returndatasize()) {
                mstore(0x00, 0x8baa579f) // `InvalidSignature()`.
                revert(0x1c, 0x04)
            }
            mstore(0x60, 0) // Restore the zero slot.
            mstore(0x40, m) // Restore the free memory pointer.
        }
    }

    /// @dev Recovers the signer's address from a message digest `hash`,
    /// and the signature defined by `v`, `r`, `s`.
    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s)
        internal
        view
        returns (address result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            let m := mload(0x40) // Cache the free memory pointer.
            mstore(0x00, hash)
            mstore(0x20, and(v, 0xff))
            mstore(0x40, r)
            mstore(0x60, s)
            result := mload(staticcall(gas(), 1, 0x00, 0x80, 0x01, 0x20))
            // `returndatasize()` will be `0x20` upon success, and `0x00` otherwise.
            if iszero(returndatasize()) {
                mstore(0x00, 0x8baa579f) // `InvalidSignature()`.
                revert(0x1c, 0x04)
            }
            mstore(0x60, 0) // Restore the zero slot.
            mstore(0x40, m) // Restore the free memory pointer.
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                   TRY-RECOVER OPERATIONS                   */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    // WARNING!
    // These functions will NOT revert upon recovery failure.
    // Instead, they will return the zero address upon recovery failure.
    // It is critical that the returned address is NEVER compared against
    // a zero address (e.g. an uninitialized address variable).

    /// @dev Recovers the signer's address from a message digest `hash`, and the `signature`.
    function tryRecover(bytes32 hash, bytes memory signature)
        internal
        view
        returns (address result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            for { let m := mload(0x40) } 1 {} {
                switch mload(signature)
                case 64 {
                    let vs := mload(add(signature, 0x40))
                    mstore(0x20, add(shr(255, vs), 27)) // `v`.
                    mstore(0x60, shr(1, shl(1, vs))) // `s`.
                }
                case 65 {
                    mstore(0x20, byte(0, mload(add(signature, 0x60)))) // `v`.
                    mstore(0x60, mload(add(signature, 0x40))) // `s`.
                }
                default { break }
                mstore(0x00, hash)
                mstore(0x40, mload(add(signature, 0x20))) // `r`.
                pop(staticcall(gas(), 1, 0x00, 0x80, 0x40, 0x20))
                mstore(0x60, 0) // Restore the zero slot.
                // `returndatasize()` will be `0x20` upon success, and `0x00` otherwise.
                result := mload(xor(0x60, returndatasize()))
                mstore(0x40, m) // Restore the free memory pointer.
                break
            }
        }
    }

    /// @dev Recovers the signer's address from a message digest `hash`, and the `signature`.
    function tryRecoverCalldata(bytes32 hash, bytes calldata signature)
        internal
        view
        returns (address result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            for { let m := mload(0x40) } 1 {} {
                switch signature.length
                case 64 {
                    let vs := calldataload(add(signature.offset, 0x20))
                    mstore(0x20, add(shr(255, vs), 27)) // `v`.
                    mstore(0x40, calldataload(signature.offset)) // `r`.
                    mstore(0x60, shr(1, shl(1, vs))) // `s`.
                }
                case 65 {
                    mstore(0x20, byte(0, calldataload(add(signature.offset, 0x40)))) // `v`.
                    calldatacopy(0x40, signature.offset, 0x40) // Copy `r` and `s`.
                }
                default { break }
                mstore(0x00, hash)
                pop(staticcall(gas(), 1, 0x00, 0x80, 0x40, 0x20))
                mstore(0x60, 0) // Restore the zero slot.
                // `returndatasize()` will be `0x20` upon success, and `0x00` otherwise.
                result := mload(xor(0x60, returndatasize()))
                mstore(0x40, m) // Restore the free memory pointer.
                break
            }
        }
    }

    /// @dev Recovers the signer's address from a message digest `hash`,
    /// and the EIP-2098 short form signature defined by `r` and `vs`.
    function tryRecover(bytes32 hash, bytes32 r, bytes32 vs)
        internal
        view
        returns (address result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            let m := mload(0x40) // Cache the free memory pointer.
            mstore(0x00, hash)
            mstore(0x20, add(shr(255, vs), 27)) // `v`.
            mstore(0x40, r)
            mstore(0x60, shr(1, shl(1, vs))) // `s`.
            pop(staticcall(gas(), 1, 0x00, 0x80, 0x40, 0x20))
            mstore(0x60, 0) // Restore the zero slot.
            // `returndatasize()` will be `0x20` upon success, and `0x00` otherwise.
            result := mload(xor(0x60, returndatasize()))
            mstore(0x40, m) // Restore the free memory pointer.
        }
    }

    /// @dev Recovers the signer's address from a message digest `hash`,
    /// and the signature defined by `v`, `r`, `s`.
    function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s)
        internal
        view
        returns (address result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            let m := mload(0x40) // Cache the free memory pointer.
            mstore(0x00, hash)
            mstore(0x20, and(v, 0xff))
            mstore(0x40, r)
            mstore(0x60, s)
            pop(staticcall(gas(), 1, 0x00, 0x80, 0x40, 0x20))
            mstore(0x60, 0) // Restore the zero slot.
            // `returndatasize()` will be `0x20` upon success, and `0x00` otherwise.
            result := mload(xor(0x60, returndatasize()))
            mstore(0x40, m) // Restore the free memory pointer.
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                     HASHING OPERATIONS                     */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Returns an Ethereum Signed Message, created from a `hash`.
    /// This produces a hash corresponding to the one signed with the
    /// [`eth_sign`](https://ethereum.org/en/developers/docs/apis/json-rpc/#eth_sign)
    /// JSON-RPC method as part of EIP-191.
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 result) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x20, hash) // Store into scratch space for keccak256.
            mstore(0x00, "\x00\x00\x00\x00\x19Ethereum Signed Message:\n32") // 28 bytes.
            result := keccak256(0x04, 0x3c) // `32 * 2 - (32 - 28) = 60 = 0x3c`.
        }
    }

    /// @dev Returns an Ethereum Signed Message, created from `s`.
    /// This produces a hash corresponding to the one signed with the
    /// [`eth_sign`](https://ethereum.org/en/developers/docs/apis/json-rpc/#eth_sign)
    /// JSON-RPC method as part of EIP-191.
    /// Note: Supports lengths of `s` up to 999999 bytes.
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32 result) {
        /// @solidity memory-safe-assembly
        assembly {
            let sLength := mload(s)
            let o := 0x20
            mstore(o, "\x19Ethereum Signed Message:\n") // 26 bytes, zero-right-padded.
            mstore(0x00, 0x00)
            // Convert the `s.length` to ASCII decimal representation: `base10(s.length)`.
            for { let temp := sLength } 1 {} {
                o := sub(o, 1)
                mstore8(o, add(48, mod(temp, 10)))
                temp := div(temp, 10)
                if iszero(temp) { break }
            }
            let n := sub(0x3a, o) // Header length: `26 + 32 - o`.
            // Throw an out-of-offset error (consumes all gas) if the header exceeds 32 bytes.
            returndatacopy(returndatasize(), returndatasize(), gt(n, 0x20))
            mstore(s, or(mload(0x00), mload(n))) // Temporarily store the header.
            result := keccak256(add(s, sub(0x20, n)), add(n, sLength))
            mstore(s, sLength) // Restore the length.
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                  CANONICAL HASH FUNCTIONS                  */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    // The following functions returns the hash of the signature in it's canonicalized format,
    // which is the 65-byte `abi.encodePacked(r, s, uint8(v))`, where `v` is either 27 or 28.
    // If `s` is greater than `N / 2` then it will be converted to `N - s`
    // and the `v` value will be flipped.
    // If the signature has an invalid length, or if `v` is invalid,
    // a uniquely corrupt hash will be returned.
    // These functions are useful for "poor-mans-VRF".

    /// @dev Returns the canonical hash of `signature`.
    function canonicalHash(bytes memory signature) internal pure returns (bytes32 result) {
        // @solidity memory-safe-assembly
        assembly {
            let l := mload(signature)
            for {} 1 {} {
                mstore(0x00, mload(add(signature, 0x20))) // `r`.
                let s := mload(add(signature, 0x40))
                let v := mload(add(signature, 0x41))
                if eq(l, 64) {
                    v := add(shr(255, s), 27)
                    s := shr(1, shl(1, s))
                }
                if iszero(lt(s, _HALF_N_PLUS_1)) {
                    v := xor(v, 7)
                    s := sub(N, s)
                }
                mstore(0x21, v)
                mstore(0x20, s)
                result := keccak256(0x00, 0x41)
                mstore(0x21, 0) // Restore the overwritten part of the free memory pointer.
                break
            }

            // If the length is neither 64 nor 65, return a uniquely corrupted hash.
            if iszero(lt(sub(l, 64), 2)) {
                // `bytes4(keccak256("InvalidSignatureLength"))`.
                result := xor(keccak256(add(signature, 0x20), l), 0xd62f1ab2)
            }
        }
    }

    /// @dev Returns the canonical hash of `signature`.
    function canonicalHashCalldata(bytes calldata signature)
        internal
        pure
        returns (bytes32 result)
    {
        // @solidity memory-safe-assembly
        assembly {
            for {} 1 {} {
                mstore(0x00, calldataload(signature.offset)) // `r`.
                let s := calldataload(add(signature.offset, 0x20))
                let v := calldataload(add(signature.offset, 0x21))
                if eq(signature.length, 64) {
                    v := add(shr(255, s), 27)
                    s := shr(1, shl(1, s))
                }
                if iszero(lt(s, _HALF_N_PLUS_1)) {
                    v := xor(v, 7)
                    s := sub(N, s)
                }
                mstore(0x21, v)
                mstore(0x20, s)
                result := keccak256(0x00, 0x41)
                mstore(0x21, 0) // Restore the overwritten part of the free memory pointer.
                break
            }
            // If the length is neither 64 nor 65, return a uniquely corrupted hash.
            if iszero(lt(sub(signature.length, 64), 2)) {
                calldatacopy(mload(0x40), signature.offset, signature.length)
                // `bytes4(keccak256("InvalidSignatureLength"))`.
                result := xor(keccak256(mload(0x40), signature.length), 0xd62f1ab2)
            }
        }
    }

    /// @dev Returns the canonical hash of `signature`.
    function canonicalHash(bytes32 r, bytes32 vs) internal pure returns (bytes32 result) {
        // @solidity memory-safe-assembly
        assembly {
            mstore(0x00, r) // `r`.
            let v := add(shr(255, vs), 27)
            let s := shr(1, shl(1, vs))
            mstore(0x21, v)
            mstore(0x20, s)
            result := keccak256(0x00, 0x41)
            mstore(0x21, 0) // Restore the overwritten part of the free memory pointer.
        }
    }

    /// @dev Returns the canonical hash of `signature`.
    function canonicalHash(uint8 v, bytes32 r, bytes32 s) internal pure returns (bytes32 result) {
        // @solidity memory-safe-assembly
        assembly {
            mstore(0x00, r) // `r`.
            if iszero(lt(s, _HALF_N_PLUS_1)) {
                v := xor(v, 7)
                s := sub(N, s)
            }
            mstore(0x21, v)
            mstore(0x20, s)
            result := keccak256(0x00, 0x41)
            mstore(0x21, 0) // Restore the overwritten part of the free memory pointer.
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                   EMPTY CALLDATA HELPERS                   */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Returns an empty calldata bytes.
    function emptySignature() internal pure returns (bytes calldata signature) {
        /// @solidity memory-safe-assembly
        assembly {
            signature.length := 0
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Contract for EIP-712 typed structured data hashing and signing.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/EIP712.sol)
/// @author Modified from Solbase (https://github.com/Sol-DAO/solbase/blob/main/src/utils/EIP712.sol)
/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/cryptography/EIP712.sol)
///
/// @dev Note, this implementation:
/// - Uses `address(this)` for the `verifyingContract` field.
/// - Does NOT use the optional EIP-712 salt.
/// - Does NOT use any EIP-712 extensions.
/// This is for simplicity and to save gas.
/// If you need to customize, please fork / modify accordingly.
abstract contract EIP712 {
    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                  CONSTANTS AND IMMUTABLES                  */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev `keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)")`.
    bytes32 internal constant _DOMAIN_TYPEHASH =
        0x8b73c3c69bb8fe3d512ecc4cf759cc79239f7b179b0ffacaa9a75d522b39400f;

    uint256 private immutable _cachedThis;
    uint256 private immutable _cachedChainId;
    bytes32 private immutable _cachedNameHash;
    bytes32 private immutable _cachedVersionHash;
    bytes32 private immutable _cachedDomainSeparator;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                        CONSTRUCTOR                         */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Cache the hashes for cheaper runtime gas costs.
    /// In the case of upgradeable contracts (i.e. proxies),
    /// or if the chain id changes due to a hard fork,
    /// the domain separator will be seamlessly calculated on-the-fly.
    constructor() {
        _cachedThis = uint256(uint160(address(this)));
        _cachedChainId = block.chainid;

        string memory name;
        string memory version;
        if (!_domainNameAndVersionMayChange()) (name, version) = _domainNameAndVersion();
        bytes32 nameHash = _domainNameAndVersionMayChange() ? bytes32(0) : keccak256(bytes(name));
        bytes32 versionHash =
            _domainNameAndVersionMayChange() ? bytes32(0) : keccak256(bytes(version));
        _cachedNameHash = nameHash;
        _cachedVersionHash = versionHash;

        bytes32 separator;
        if (!_domainNameAndVersionMayChange()) {
            /// @solidity memory-safe-assembly
            assembly {
                let m := mload(0x40) // Load the free memory pointer.
                mstore(m, _DOMAIN_TYPEHASH)
                mstore(add(m, 0x20), nameHash)
                mstore(add(m, 0x40), versionHash)
                mstore(add(m, 0x60), chainid())
                mstore(add(m, 0x80), address())
                separator := keccak256(m, 0xa0)
            }
        }
        _cachedDomainSeparator = separator;
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                   FUNCTIONS TO OVERRIDE                    */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Please override this function to return the domain name and version.
    /// ```
    ///     function _domainNameAndVersion()
    ///         internal
    ///         pure
    ///         virtual
    ///         returns (string memory name, string memory version)
    ///     {
    ///         name = "Solady";
    ///         version = "1";
    ///     }
    /// ```
    ///
    /// Note: If the returned result may change after the contract has been deployed,
    /// you must override `_domainNameAndVersionMayChange()` to return true.
    function _domainNameAndVersion()
        internal
        view
        virtual
        returns (string memory name, string memory version);

    /// @dev Returns if `_domainNameAndVersion()` may change
    /// after the contract has been deployed (i.e. after the constructor).
    /// Default: false.
    function _domainNameAndVersionMayChange() internal pure virtual returns (bool result) {}

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                     HASHING OPERATIONS                     */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Returns the EIP-712 domain separator.
    function _domainSeparator() internal view virtual returns (bytes32 separator) {
        if (_domainNameAndVersionMayChange()) {
            separator = _buildDomainSeparator();
        } else {
            separator = _cachedDomainSeparator;
            if (_cachedDomainSeparatorInvalidated()) separator = _buildDomainSeparator();
        }
    }

    /// @dev Returns the hash of the fully encoded EIP-712 message for this domain,
    /// given `structHash`, as defined in
    /// https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct.
    ///
    /// The hash can be used together with {ECDSA-recover} to obtain the signer of a message:
    /// ```
    ///     bytes32 digest = _hashTypedData(keccak256(abi.encode(
    ///         keccak256("Mail(address to,string contents)"),
    ///         mailTo,
    ///         keccak256(bytes(mailContents))
    ///     )));
    ///     address signer = ECDSA.recover(digest, signature);
    /// ```
    function _hashTypedData(bytes32 structHash) internal view virtual returns (bytes32 digest) {
        // We will use `digest` to store the domain separator to save a bit of gas.
        if (_domainNameAndVersionMayChange()) {
            digest = _buildDomainSeparator();
        } else {
            digest = _cachedDomainSeparator;
            if (_cachedDomainSeparatorInvalidated()) digest = _buildDomainSeparator();
        }
        /// @solidity memory-safe-assembly
        assembly {
            // Compute the digest.
            mstore(0x00, 0x1901000000000000) // Store "\x19\x01".
            mstore(0x1a, digest) // Store the domain separator.
            mstore(0x3a, structHash) // Store the struct hash.
            digest := keccak256(0x18, 0x42)
            // Restore the part of the free memory slot that was overwritten.
            mstore(0x3a, 0)
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                    EIP-5267 OPERATIONS                     */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev See: https://eips.ethereum.org/EIPS/eip-5267
    function eip712Domain()
        public
        view
        virtual
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        )
    {
        fields = hex"0f"; // `0b01111`.
        (name, version) = _domainNameAndVersion();
        chainId = block.chainid;
        verifyingContract = address(this);
        salt = salt; // `bytes32(0)`.
        extensions = extensions; // `new uint256[](0)`.
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                      PRIVATE HELPERS                       */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Returns the EIP-712 domain separator.
    function _buildDomainSeparator() private view returns (bytes32 separator) {
        // We will use `separator` to store the name hash to save a bit of gas.
        bytes32 versionHash;
        if (_domainNameAndVersionMayChange()) {
            (string memory name, string memory version) = _domainNameAndVersion();
            separator = keccak256(bytes(name));
            versionHash = keccak256(bytes(version));
        } else {
            separator = _cachedNameHash;
            versionHash = _cachedVersionHash;
        }
        /// @solidity memory-safe-assembly
        assembly {
            let m := mload(0x40) // Load the free memory pointer.
            mstore(m, _DOMAIN_TYPEHASH)
            mstore(add(m, 0x20), separator) // Name hash.
            mstore(add(m, 0x40), versionHash)
            mstore(add(m, 0x60), chainid())
            mstore(add(m, 0x80), address())
            separator := keccak256(m, 0xa0)
        }
    }

    /// @dev Returns if the cached domain separator has been invalidated.
    function _cachedDomainSeparatorInvalidated() private view returns (bool result) {
        uint256 cachedChainId = _cachedChainId;
        uint256 cachedThis = _cachedThis;
        /// @solidity memory-safe-assembly
        assembly {
            result := iszero(and(eq(chainid(), cachedChainId), eq(address(), cachedThis)))
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Initializable mixin for the upgradeable contracts.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/Initializable.sol)
/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/proxy/utils/Initializable.sol)
abstract contract Initializable {
    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                       CUSTOM ERRORS                        */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The contract is already initialized.
    error InvalidInitialization();

    /// @dev The contract is not initializing.
    error NotInitializing();

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                           EVENTS                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Triggered when the contract has been initialized.
    event Initialized(uint64 version);

    /// @dev `keccak256(bytes("Initialized(uint64)"))`.
    bytes32 private constant _INTIALIZED_EVENT_SIGNATURE =
        0xc7f505b2f371ae2175ee4913f4499e1f2633a7b5936321eed1cdaeb6115181d2;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                          STORAGE                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The default initializable slot is given by:
    /// `bytes32(~uint256(uint32(bytes4(keccak256("_INITIALIZABLE_SLOT")))))`.
    ///
    /// Bits Layout:
    /// - [0]     `initializing`
    /// - [1..64] `initializedVersion`
    bytes32 private constant _INITIALIZABLE_SLOT =
        0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffbf601132;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                        CONSTRUCTOR                         */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    constructor() {
        // Construction time check to ensure that `_initializableSlot()` is not
        // overridden to zero. Will be optimized away if there is no revert.
        require(_initializableSlot() != bytes32(0));
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                         OPERATIONS                         */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Override to return a non-zero custom storage slot if required.
    function _initializableSlot() internal pure virtual returns (bytes32) {
        return _INITIALIZABLE_SLOT;
    }

    /// @dev Guards an initializer function so that it can be invoked at most once.
    ///
    /// You can guard a function with `onlyInitializing` such that it can be called
    /// through a function guarded with `initializer`.
    ///
    /// This is similar to `reinitializer(1)`, except that in the context of a constructor,
    /// an `initializer` guarded function can be invoked multiple times.
    /// This can be useful during testing and is not expected to be used in production.
    ///
    /// Emits an {Initialized} event.
    modifier initializer() virtual {
        bytes32 s = _initializableSlot();
        /// @solidity memory-safe-assembly
        assembly {
            let i := sload(s)
            // Set `initializing` to 1, `initializedVersion` to 1.
            sstore(s, 3)
            // If `!(initializing == 0 && initializedVersion == 0)`.
            if i {
                // If `!(address(this).code.length == 0 && initializedVersion == 1)`.
                if iszero(lt(extcodesize(address()), eq(shr(1, i), 1))) {
                    mstore(0x00, 0xf92ee8a9) // `InvalidInitialization()`.
                    revert(0x1c, 0x04)
                }
                s := shl(shl(255, i), s) // Skip initializing if `initializing == 1`.
            }
        }
        _;
        /// @solidity memory-safe-assembly
        assembly {
            if s {
                // Set `initializing` to 0, `initializedVersion` to 1.
                sstore(s, 2)
                // Emit the {Initialized} event.
                mstore(0x20, 1)
                log1(0x20, 0x20, _INTIALIZED_EVENT_SIGNATURE)
            }
        }
    }

    /// @dev Guards an reinitialzer function so that it can be invoked at most once.
    ///
    /// You can guard a function with `onlyInitializing` such that it can be called
    /// through a function guarded with `reinitializer`.
    ///
    /// Emits an {Initialized} event.
    modifier reinitializer(uint64 version) virtual {
        bytes32 s = _initializableSlot();
        /// @solidity memory-safe-assembly
        assembly {
            // Clean upper bits, and shift left by 1 to make space for the initializing bit.
            version := shl(1, and(version, 0xffffffffffffffff))
            let i := sload(s)
            // If `initializing == 1 || initializedVersion >= version`.
            if iszero(lt(and(i, 1), lt(i, version))) {
                mstore(0x00, 0xf92ee8a9) // `InvalidInitialization()`.
                revert(0x1c, 0x04)
            }
            // Set `initializing` to 1, `initializedVersion` to `version`.
            sstore(s, or(1, version))
        }
        _;
        /// @solidity memory-safe-assembly
        assembly {
            // Set `initializing` to 0, `initializedVersion` to `version`.
            sstore(s, version)
            // Emit the {Initialized} event.
            mstore(0x20, shr(1, version))
            log1(0x20, 0x20, _INTIALIZED_EVENT_SIGNATURE)
        }
    }

    /// @dev Guards a function such that it can only be called in the scope
    /// of a function guarded with `initializer` or `reinitializer`.
    modifier onlyInitializing() virtual {
        _checkInitializing();
        _;
    }

    /// @dev Reverts if the contract is not initializing.
    function _checkInitializing() internal view virtual {
        bytes32 s = _initializableSlot();
        /// @solidity memory-safe-assembly
        assembly {
            if iszero(and(1, sload(s))) {
                mstore(0x00, 0xd7e6bcf8) // `NotInitializing()`.
                revert(0x1c, 0x04)
            }
        }
    }

    /// @dev Locks any future initializations by setting the initialized version to `2**64 - 1`.
    ///
    /// Calling this in the constructor will prevent the contract from being initialized
    /// or reinitialized. 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 called.
    function _disableInitializers() internal virtual {
        bytes32 s = _initializableSlot();
        /// @solidity memory-safe-assembly
        assembly {
            let i := sload(s)
            if and(i, 1) {
                mstore(0x00, 0xf92ee8a9) // `InvalidInitialization()`.
                revert(0x1c, 0x04)
            }
            let uint64max := 0xffffffffffffffff
            if iszero(eq(shr(1, i), uint64max)) {
                // Set `initializing` to 0, `initializedVersion` to `2**64 - 1`.
                sstore(s, shl(1, uint64max))
                // Emit the {Initialized} event.
                mstore(0x20, uint64max)
                log1(0x20, 0x20, _INTIALIZED_EVENT_SIGNATURE)
            }
        }
    }

    /// @dev Returns the highest version that has been initialized.
    function _getInitializedVersion() internal view virtual returns (uint64 version) {
        bytes32 s = _initializableSlot();
        /// @solidity memory-safe-assembly
        assembly {
            version := shr(1, sload(s))
        }
    }

    /// @dev Returns whether the contract is currently initializing.
    function _isInitializing() internal view virtual returns (bool result) {
        bytes32 s = _initializableSlot();
        /// @solidity memory-safe-assembly
        assembly {
            result := and(1, sload(s))
        }
    }
}

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

Contract Security Audit

Contract ABI

API
[{"inputs":[],"name":"AlreadyInitialized","type":"error"},{"inputs":[],"name":"InvalidInitialization","type":"error"},{"inputs":[],"name":"InvalidNonce","type":"error"},{"inputs":[],"name":"InvalidSignature","type":"error"},{"inputs":[],"name":"NewOwnerIsZeroAddress","type":"error"},{"inputs":[],"name":"NoHandoverRequest","type":"error"},{"inputs":[],"name":"NotInitializing","type":"error"},{"inputs":[],"name":"SignatureExpired","type":"error"},{"inputs":[],"name":"Unauthorized","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint64","name":"version","type":"uint64"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"asset","type":"address"},{"indexed":false,"internalType":"uint96[]","name":"legacyTokenIds","type":"uint96[]"}],"name":"Minted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"pendingOwner","type":"address"}],"name":"OwnershipHandoverCanceled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"pendingOwner","type":"address"}],"name":"OwnershipHandoverRequested","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"oldOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"uint256","name":"roles","type":"uint256"}],"name":"RolesUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"signer","type":"address"}],"name":"SignerSet","type":"event"},{"inputs":[],"name":"ADMIN_ROLE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINT_TYPE_HASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"},{"internalType":"address","name":"_signer","type":"address"}],"name":"__AssetMinter_init","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"cancelOwnershipHandover","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"pendingOwner","type":"address"}],"name":"completeOwnershipHandover","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"eip712Domain","outputs":[{"internalType":"bytes1","name":"fields","type":"bytes1"},{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"version","type":"string"},{"internalType":"uint256","name":"chainId","type":"uint256"},{"internalType":"address","name":"verifyingContract","type":"address"},{"internalType":"bytes32","name":"salt","type":"bytes32"},{"internalType":"uint256[]","name":"extensions","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"roles","type":"uint256"}],"name":"grantRoles","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"roles","type":"uint256"}],"name":"hasAllRoles","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"roles","type":"uint256"}],"name":"hasAnyRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"isNonceUsed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_asset","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint96[]","name":"_legacyTokenIds","type":"uint96[]"},{"internalType":"uint256","name":"_expiry","type":"uint256"},{"internalType":"uint256","name":"_nonce","type":"uint256"},{"internalType":"bytes","name":"_signature","type":"bytes"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_asset","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint96[]","name":"_legacyTokenIds","type":"uint96[]"}],"name":"mintAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"result","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"pendingOwner","type":"address"}],"name":"ownershipHandoverExpiresAt","outputs":[{"internalType":"uint256","name":"result","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"roles","type":"uint256"}],"name":"renounceRoles","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"requestOwnershipHandover","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"roles","type":"uint256"}],"name":"revokeRoles","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"rolesOf","outputs":[{"internalType":"uint256","name":"roles","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_signer","type":"address"}],"name":"setSigner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"signer","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"payable","type":"function"}]

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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.