Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta

More Options

• Similar
• Submit Audit
• Compare

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.4 <0.9.0;

import { IXERC20 } from "../interfaces/IXERC20.sol";
import {
    ERC20Upgradeable
} from "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
import {
    ERC20PermitUpgradeable
} from "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/ERC20PermitUpgradeable.sol";
import {
    OwnableUpgradeable
} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";

contract XERC20 is
    Initializable,
    ERC20Upgradeable,
    OwnableUpgradeable,
    IXERC20,
    ERC20PermitUpgradeable
{
    /**
     * @notice The duration it takes for the limits to fully replenish
     */
    uint256 private constant _DURATION = 1 days;

    /**
     * @notice The address of the factory which deployed this contract
     */
    address public FACTORY;

    /**
     * @notice The address of the lockbox contract
     */
    address public lockbox;

    /**
     * @notice Maps bridge address to bridge configurations
     */
    mapping(address => Bridge) public bridges;

    // constructor(string memory _name, string memory _symbol, address _factory) ERC20Upgradeable(_name, _symbol) ERC20PermitUpgradeable(_name) {
    //   _transferOwnership(_factory);
    //   FACTORY = _factory;
    // }

    /// @dev Prevents implementation contract from being initialized.
    /// @custom:oz-upgrades-unsafe-allow constructor
    constructor() {
        _disableInitializers();
    }

    /**
     * @notice Constructs the initial config of the XERC20
     *
     * @param _name The name of the token
     * @param _symbol The symbol of the token
     * @param _factory The factory which deployed this contract
     */
    function initialize(
        string memory _name,
        string memory _symbol,
        address _factory
    ) public initializer {
        __XERC20_init(_name, _symbol, _factory);
    }

    /**
     * @notice Constructs the initial config of the XERC20
     *
     * @param _name The name of the token
     * @param _symbol The symbol of the token
     * @param _factory The factory which deployed this contract
     */
    function __XERC20_init(
        string memory _name,
        string memory _symbol,
        address _factory
    ) internal onlyInitializing {
        __ERC20_init(_name, _symbol);
        __ERC20Permit_init(_name);
        __Ownable_init();

        _transferOwnership(_factory);
        FACTORY = _factory;
    }

    /**
     * @notice Mints tokens for a user
     * @dev Can only be called by a bridge
     * @param _user The address of the user who needs tokens minted
     * @param _amount The amount of tokens being minted
     */

    function mint(address _user, uint256 _amount) public virtual {
        _mintWithCaller(msg.sender, _user, _amount);
    }

    /**
     * @notice Burns tokens for a user
     * @dev Can only be called by a bridge
     * @param _user The address of the user who needs tokens burned
     * @param _amount The amount of tokens being burned
     */

    function burn(address _user, uint256 _amount) public virtual {
        if (msg.sender != _user) {
            _spendAllowance(_user, msg.sender, _amount);
        }

        _burnWithCaller(msg.sender, _user, _amount);
    }

    /**
     * @notice Sets the lockbox address
     *
     * @param _lockbox The address of the lockbox
     */

    function setLockbox(address _lockbox) public {
        if (msg.sender != FACTORY) revert IXERC20_NotFactory();
        lockbox = _lockbox;

        emit LockboxSet(_lockbox);
    }

    /**
     * @notice Updates the limits of any bridge
     * @dev Can only be called by the owner
     * @param _mintingLimit The updated minting limit we are setting to the bridge
     * @param _burningLimit The updated burning limit we are setting to the bridge
     * @param _bridge The address of the bridge we are setting the limits too
     */
    function setLimits(
        address _bridge,
        uint256 _mintingLimit,
        uint256 _burningLimit
    ) external onlyOwner {
        _changeMinterLimit(_bridge, _mintingLimit);
        _changeBurnerLimit(_bridge, _burningLimit);
        emit BridgeLimitsSet(_mintingLimit, _burningLimit, _bridge);
    }

    /**
     * @notice Returns the max limit of a bridge
     *
     * @param _bridge the bridge we are viewing the limits of
     * @return _limit The limit the bridge has
     */

    function mintingMaxLimitOf(address _bridge) public view returns (uint256 _limit) {
        _limit = bridges[_bridge].minterParams.maxLimit;
    }

    /**
     * @notice Returns the max limit of a bridge
     *
     * @param _bridge the bridge we are viewing the limits of
     * @return _limit The limit the bridge has
     */

    function burningMaxLimitOf(address _bridge) public view returns (uint256 _limit) {
        _limit = bridges[_bridge].burnerParams.maxLimit;
    }

    /**
     * @notice Returns the current limit of a bridge
     *
     * @param _bridge the bridge we are viewing the limits of
     * @return _limit The limit the bridge has
     */

    function mintingCurrentLimitOf(address _bridge) public view returns (uint256 _limit) {
        _limit = _getCurrentLimit(
            bridges[_bridge].minterParams.currentLimit,
            bridges[_bridge].minterParams.maxLimit,
            bridges[_bridge].minterParams.timestamp,
            bridges[_bridge].minterParams.ratePerSecond
        );
    }

    /**
     * @notice Returns the current limit of a bridge
     *
     * @param _bridge the bridge we are viewing the limits of
     * @return _limit The limit the bridge has
     */

    function burningCurrentLimitOf(address _bridge) public view returns (uint256 _limit) {
        _limit = _getCurrentLimit(
            bridges[_bridge].burnerParams.currentLimit,
            bridges[_bridge].burnerParams.maxLimit,
            bridges[_bridge].burnerParams.timestamp,
            bridges[_bridge].burnerParams.ratePerSecond
        );
    }

    /**
     * @notice Uses the limit of any bridge
     * @param _bridge The address of the bridge who is being changed
     * @param _change The change in the limit
     */

    function _useMinterLimits(address _bridge, uint256 _change) internal {
        uint256 _currentLimit = mintingCurrentLimitOf(_bridge);
        bridges[_bridge].minterParams.timestamp = block.timestamp;
        bridges[_bridge].minterParams.currentLimit = _currentLimit - _change;
    }

    /**
     * @notice Uses the limit of any bridge
     * @param _bridge The address of the bridge who is being changed
     * @param _change The change in the limit
     */

    function _useBurnerLimits(address _bridge, uint256 _change) internal {
        uint256 _currentLimit = burningCurrentLimitOf(_bridge);
        bridges[_bridge].burnerParams.timestamp = block.timestamp;
        bridges[_bridge].burnerParams.currentLimit = _currentLimit - _change;
    }

    /**
     * @notice Updates the limit of any bridge
     * @dev Can only be called by the owner
     * @param _bridge The address of the bridge we are setting the limit too
     * @param _limit The updated limit we are setting to the bridge
     */

    function _changeMinterLimit(address _bridge, uint256 _limit) internal {
        uint256 _oldLimit = bridges[_bridge].minterParams.maxLimit;
        uint256 _currentLimit = mintingCurrentLimitOf(_bridge);
        bridges[_bridge].minterParams.maxLimit = _limit;

        bridges[_bridge].minterParams.currentLimit = _calculateNewCurrentLimit(
            _limit,
            _oldLimit,
            _currentLimit
        );

        bridges[_bridge].minterParams.ratePerSecond = _limit / _DURATION;
        bridges[_bridge].minterParams.timestamp = block.timestamp;
    }

    /**
     * @notice Updates the limit of any bridge
     * @dev Can only be called by the owner
     * @param _bridge The address of the bridge we are setting the limit too
     * @param _limit The updated limit we are setting to the bridge
     */

    function _changeBurnerLimit(address _bridge, uint256 _limit) internal {
        uint256 _oldLimit = bridges[_bridge].burnerParams.maxLimit;
        uint256 _currentLimit = burningCurrentLimitOf(_bridge);
        bridges[_bridge].burnerParams.maxLimit = _limit;

        bridges[_bridge].burnerParams.currentLimit = _calculateNewCurrentLimit(
            _limit,
            _oldLimit,
            _currentLimit
        );

        bridges[_bridge].burnerParams.ratePerSecond = _limit / _DURATION;
        bridges[_bridge].burnerParams.timestamp = block.timestamp;
    }

    /**
     * @notice Updates the current limit
     *
     * @param _limit The new limit
     * @param _oldLimit The old limit
     * @param _currentLimit The current limit
     * @return _newCurrentLimit The new current limit
     */

    function _calculateNewCurrentLimit(
        uint256 _limit,
        uint256 _oldLimit,
        uint256 _currentLimit
    ) internal pure returns (uint256 _newCurrentLimit) {
        uint256 _difference;

        if (_oldLimit > _limit) {
            _difference = _oldLimit - _limit;
            _newCurrentLimit = _currentLimit > _difference ? _currentLimit - _difference : 0;
        } else {
            _difference = _limit - _oldLimit;
            _newCurrentLimit = _currentLimit + _difference;
        }
    }

    /**
     * @notice Gets the current limit
     *
     * @param _currentLimit The current limit
     * @param _maxLimit The max limit
     * @param _timestamp The timestamp of the last update
     * @param _ratePerSecond The rate per second
     * @return _limit The current limit
     */

    function _getCurrentLimit(
        uint256 _currentLimit,
        uint256 _maxLimit,
        uint256 _timestamp,
        uint256 _ratePerSecond
    ) internal view returns (uint256 _limit) {
        _limit = _currentLimit;
        if (_limit == _maxLimit) {
            return _limit;
        } else if (_timestamp + _DURATION <= block.timestamp) {
            _limit = _maxLimit;
        } else if (_timestamp + _DURATION > block.timestamp) {
            uint256 _timePassed = block.timestamp - _timestamp;
            uint256 _calculatedLimit = _limit + (_timePassed * _ratePerSecond);
            _limit = _calculatedLimit > _maxLimit ? _maxLimit : _calculatedLimit;
        }
    }

    /**
     * @notice Internal function for burning tokens
     *
     * @param _caller The caller address
     * @param _user The user address
     * @param _amount The amount to burn
     */

    function _burnWithCaller(address _caller, address _user, uint256 _amount) internal {
        // Do not allow 0 value burns
        if (_amount == 0) revert IXERC20_INVALID_0_VALUE();

        if (_caller != lockbox) {
            uint256 _currentLimit = burningCurrentLimitOf(_caller);
            if (_currentLimit < _amount) revert IXERC20_NotHighEnoughLimits();
            _useBurnerLimits(_caller, _amount);
        }
        _burn(_user, _amount);
    }

    /**
     * @notice Internal function for minting tokens
     *
     * @param _caller The caller address
     * @param _user The user address
     * @param _amount The amount to mint
     */

    function _mintWithCaller(address _caller, address _user, uint256 _amount) internal {
        // Do not allow 0 value mints
        if (_amount == 0) revert IXERC20_INVALID_0_VALUE();

        if (_caller != lockbox) {
            uint256 _currentLimit = mintingCurrentLimitOf(_caller);
            if (_currentLimit < _amount) revert IXERC20_NotHighEnoughLimits();
            _useMinterLimits(_caller, _amount);
        }
        _mint(_user, _amount);
    }
}

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

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";

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

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC5267.sol)

pragma solidity ^0.8.0;

interface IERC5267Upgradeable {
    /**
     * @dev MAY be emitted to signal that the domain could have changed.
     */
    event EIP712DomainChanged();

    /**
     * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712
     * signature.
     */
    function eip712Domain()
        external
        view
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        );
}

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

pragma solidity ^0.8.2;

import "../../utils/AddressUpgradeable.sol";

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     * @custom:oz-retyped-from bool
     */
    uint8 private _initialized;

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

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

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

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

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

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

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

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

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

pragma solidity ^0.8.0;

import "./IERC20Upgradeable.sol";
import "./extensions/IERC20MetadataUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import {Initializable} from "../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20Upgradeable, IERC20MetadataUpgradeable {
    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    function __ERC20_init(string memory name_, string memory symbol_) internal onlyInitializing {
        __ERC20_init_unchained(name_, symbol_);
    }

    function __ERC20_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the default value returned by this function, unless
     * it's overridden.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `amount`.
     */
    function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, allowance(owner, spender) + addedValue);
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `amount` of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     */
    function _transfer(address from, address to, uint256 amount) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
            // decrementing then incrementing.
            _balances[to] += amount;
        }

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        unchecked {
            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
            _balances[account] += amount;
        }
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
            // Overflow not possible: amount <= accountBalance <= totalSupply.
            _totalSupply -= amount;
        }

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.
     *
     * Does not update the allowance amount in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Might emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - amount);
            }
        }
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[45] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (token/ERC20/extensions/ERC20Permit.sol)

pragma solidity ^0.8.0;

import "./IERC20PermitUpgradeable.sol";
import "../ERC20Upgradeable.sol";
import "../../../utils/cryptography/ECDSAUpgradeable.sol";
import "../../../utils/cryptography/EIP712Upgradeable.sol";
import "../../../utils/CountersUpgradeable.sol";
import {Initializable} from "../../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * _Available since v3.4._
 *
 * @custom:storage-size 51
 */
abstract contract ERC20PermitUpgradeable is Initializable, ERC20Upgradeable, IERC20PermitUpgradeable, EIP712Upgradeable {
    using CountersUpgradeable for CountersUpgradeable.Counter;

    mapping(address => CountersUpgradeable.Counter) private _nonces;

    // solhint-disable-next-line var-name-mixedcase
    bytes32 private constant _PERMIT_TYPEHASH =
        keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
    /**
     * @dev In previous versions `_PERMIT_TYPEHASH` was declared as `immutable`.
     * However, to ensure consistency with the upgradeable transpiler, we will continue
     * to reserve a slot.
     * @custom:oz-renamed-from _PERMIT_TYPEHASH
     */
    // solhint-disable-next-line var-name-mixedcase
    bytes32 private _PERMIT_TYPEHASH_DEPRECATED_SLOT;

    /**
     * @dev Initializes the {EIP712} domain separator using the `name` parameter, and setting `version` to `"1"`.
     *
     * It's a good idea to use the same `name` that is defined as the ERC20 token name.
     */
    function __ERC20Permit_init(string memory name) internal onlyInitializing {
        __EIP712_init_unchained(name, "1");
    }

    function __ERC20Permit_init_unchained(string memory) internal onlyInitializing {}

    /**
     * @inheritdoc IERC20PermitUpgradeable
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual override {
        require(block.timestamp <= deadline, "ERC20Permit: expired deadline");

        bytes32 structHash = keccak256(abi.encode(_PERMIT_TYPEHASH, owner, spender, value, _useNonce(owner), deadline));

        bytes32 hash = _hashTypedDataV4(structHash);

        address signer = ECDSAUpgradeable.recover(hash, v, r, s);
        require(signer == owner, "ERC20Permit: invalid signature");

        _approve(owner, spender, value);
    }

    /**
     * @inheritdoc IERC20PermitUpgradeable
     */
    function nonces(address owner) public view virtual override returns (uint256) {
        return _nonces[owner].current();
    }

    /**
     * @inheritdoc IERC20PermitUpgradeable
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view override returns (bytes32) {
        return _domainSeparatorV4();
    }

    /**
     * @dev "Consume a nonce": return the current value and increment.
     *
     * _Available since v4.1._
     */
    function _useNonce(address owner) internal virtual returns (uint256 current) {
        CountersUpgradeable.Counter storage nonce = _nonces[owner];
        current = nonce.current();
        nonce.increment();
    }

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20Upgradeable.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20MetadataUpgradeable is IERC20Upgradeable {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
interface IERC20PermitUpgradeable {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

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

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

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

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20Upgradeable {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

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

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

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

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

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

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

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

pragma solidity ^0.8.1;

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

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

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

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }

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

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

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

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

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

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

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

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

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)

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

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

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

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

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol)

pragma solidity ^0.8.0;

/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 */
library CountersUpgradeable {
    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        unchecked {
            counter._value += 1;
        }
    }

    function decrement(Counter storage counter) internal {
        uint256 value = counter._value;
        require(value > 0, "Counter: decrement overflow");
        unchecked {
            counter._value = value - 1;
        }
    }

    function reset(Counter storage counter) internal {
        counter._value = 0;
    }
}

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

pragma solidity ^0.8.0;

import "../StringsUpgradeable.sol";

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSAUpgradeable {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV // Deprecated in v4.8
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            /// @solidity memory-safe-assembly
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError) {
        bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
        uint8 v = uint8((uint256(vs) >> 255) + 27);
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 message) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, "\x19Ethereum Signed Message:\n32")
            mstore(0x1c, hash)
            message := keccak256(0x00, 0x3c)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from `s`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", StringsUpgradeable.toString(s.length), s));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 data) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, "\x19\x01")
            mstore(add(ptr, 0x02), domainSeparator)
            mstore(add(ptr, 0x22), structHash)
            data := keccak256(ptr, 0x42)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Data with intended validator, created from a
     * `validator` and `data` according to the version 0 of EIP-191.
     *
     * See {recover}.
     */
    function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x00", validator, data));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/EIP712.sol)

pragma solidity ^0.8.8;

import "./ECDSAUpgradeable.sol";
import "../../interfaces/IERC5267Upgradeable.sol";
import {Initializable} from "../../proxy/utils/Initializable.sol";

/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
 * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
 * they need in their contracts using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain
 * separator of the implementation contract. This will cause the `_domainSeparatorV4` function to always rebuild the
 * separator from the immutable values, which is cheaper than accessing a cached version in cold storage.
 *
 * _Available since v3.4._
 *
 * @custom:storage-size 52
 */
abstract contract EIP712Upgradeable is Initializable, IERC5267Upgradeable {
    bytes32 private constant _TYPE_HASH =
        keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");

    /// @custom:oz-renamed-from _HASHED_NAME
    bytes32 private _hashedName;
    /// @custom:oz-renamed-from _HASHED_VERSION
    bytes32 private _hashedVersion;

    string private _name;
    string private _version;

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    function __EIP712_init(string memory name, string memory version) internal onlyInitializing {
        __EIP712_init_unchained(name, version);
    }

    function __EIP712_init_unchained(string memory name, string memory version) internal onlyInitializing {
        _name = name;
        _version = version;

        // Reset prior values in storage if upgrading
        _hashedName = 0;
        _hashedVersion = 0;
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        return _buildDomainSeparator();
    }

    function _buildDomainSeparator() private view returns (bytes32) {
        return keccak256(abi.encode(_TYPE_HASH, _EIP712NameHash(), _EIP712VersionHash(), block.chainid, address(this)));
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return ECDSAUpgradeable.toTypedDataHash(_domainSeparatorV4(), structHash);
    }

    /**
     * @dev See {EIP-5267}.
     *
     * _Available since v4.9._
     */
    function eip712Domain()
        public
        view
        virtual
        override
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        )
    {
        // If the hashed name and version in storage are non-zero, the contract hasn't been properly initialized
        // and the EIP712 domain is not reliable, as it will be missing name and version.
        require(_hashedName == 0 && _hashedVersion == 0, "EIP712: Uninitialized");

        return (
            hex"0f", // 01111
            _EIP712Name(),
            _EIP712Version(),
            block.chainid,
            address(this),
            bytes32(0),
            new uint256[](0)
        );
    }

    /**
     * @dev The name parameter for the EIP712 domain.
     *
     * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs
     * are a concern.
     */
    function _EIP712Name() internal virtual view returns (string memory) {
        return _name;
    }

    /**
     * @dev The version parameter for the EIP712 domain.
     *
     * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs
     * are a concern.
     */
    function _EIP712Version() internal virtual view returns (string memory) {
        return _version;
    }

    /**
     * @dev The hash of the name parameter for the EIP712 domain.
     *
     * NOTE: In previous versions this function was virtual. In this version you should override `_EIP712Name` instead.
     */
    function _EIP712NameHash() internal view returns (bytes32) {
        string memory name = _EIP712Name();
        if (bytes(name).length > 0) {
            return keccak256(bytes(name));
        } else {
            // If the name is empty, the contract may have been upgraded without initializing the new storage.
            // We return the name hash in storage if non-zero, otherwise we assume the name is empty by design.
            bytes32 hashedName = _hashedName;
            if (hashedName != 0) {
                return hashedName;
            } else {
                return keccak256("");
            }
        }
    }

    /**
     * @dev The hash of the version parameter for the EIP712 domain.
     *
     * NOTE: In previous versions this function was virtual. In this version you should override `_EIP712Version` instead.
     */
    function _EIP712VersionHash() internal view returns (bytes32) {
        string memory version = _EIP712Version();
        if (bytes(version).length > 0) {
            return keccak256(bytes(version));
        } else {
            // If the version is empty, the contract may have been upgraded without initializing the new storage.
            // We return the version hash in storage if non-zero, otherwise we assume the version is empty by design.
            bytes32 hashedVersion = _hashedVersion;
            if (hashedVersion != 0) {
                return hashedVersion;
            } else {
                return keccak256("");
            }
        }
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[48] private __gap;
}

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

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library MathUpgradeable {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1, "Math: mulDiv overflow");

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10 ** 64) {
                value /= 10 ** 64;
                result += 64;
            }
            if (value >= 10 ** 32) {
                value /= 10 ** 32;
                result += 32;
            }
            if (value >= 10 ** 16) {
                value /= 10 ** 16;
                result += 16;
            }
            if (value >= 10 ** 8) {
                value /= 10 ** 8;
                result += 8;
            }
            if (value >= 10 ** 4) {
                value /= 10 ** 4;
                result += 4;
            }
            if (value >= 10 ** 2) {
                value /= 10 ** 2;
                result += 2;
            }
            if (value >= 10 ** 1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMathUpgradeable {
    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }

    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // must be unchecked in order to support `n = type(int256).min`
            return uint256(n >= 0 ? n : -n);
        }
    }
}

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

pragma solidity ^0.8.0;

import "./math/MathUpgradeable.sol";
import "./math/SignedMathUpgradeable.sol";

/**
 * @dev String operations.
 */
library StringsUpgradeable {
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = MathUpgradeable.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `int256` to its ASCII `string` decimal representation.
     */
    function toString(int256 value) internal pure returns (string memory) {
        return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMathUpgradeable.abs(value))));
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, MathUpgradeable.log256(value) + 1);
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }

    /**
     * @dev Returns true if the two strings are equal.
     */
    function equal(string memory a, string memory b) internal pure returns (bool) {
        return keccak256(bytes(a)) == keccak256(bytes(b));
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.4 <0.9.0;

interface IXERC20 {
    /**
     * @notice Emits when a lockbox is set
     *
     * @param _lockbox The address of the lockbox
     */

    event LockboxSet(address _lockbox);

    /**
     * @notice Emits when a limit is set
     *
     * @param _mintingLimit The updated minting limit we are setting to the bridge
     * @param _burningLimit The updated burning limit we are setting to the bridge
     * @param _bridge The address of the bridge we are setting the limit too
     */
    event BridgeLimitsSet(uint256 _mintingLimit, uint256 _burningLimit, address indexed _bridge);

    /**
     * @notice Reverts when a user with too low of a limit tries to call mint/burn
     */

    error IXERC20_NotHighEnoughLimits();

    /**
     * @notice Reverts when caller is not the factory
     */

    error IXERC20_NotFactory();

    /**
     * @notice Reverts when mint or burn value is 0
     */

    error IXERC20_INVALID_0_VALUE();

    /**
     * @notice Contains the full minting and burning data for a particular bridge
     *
     * @param minterParams The minting parameters for the bridge
     * @param burnerParams The burning parameters for the bridge
     */
    struct Bridge {
        BridgeParameters minterParams;
        BridgeParameters burnerParams;
    }

    /**
     * @notice Contains the mint or burn parameters for a bridge
     *
     * @param timestamp The timestamp of the last mint/burn
     * @param ratePerSecond The rate per second of the bridge
     * @param maxLimit The max limit of the bridge
     * @param currentLimit The current limit of the bridge
     */
    struct BridgeParameters {
        uint256 timestamp;
        uint256 ratePerSecond;
        uint256 maxLimit;
        uint256 currentLimit;
    }

    /**
     * @notice Sets the lockbox address
     *
     * @param _lockbox The address of the lockbox
     */

    function setLockbox(address _lockbox) external;

    /**
     * @notice Updates the limits of any bridge
     * @dev Can only be called by the owner
     * @param _mintingLimit The updated minting limit we are setting to the bridge
     * @param _burningLimit The updated burning limit we are setting to the bridge
     * @param _bridge The address of the bridge we are setting the limits too
     */
    function setLimits(address _bridge, uint256 _mintingLimit, uint256 _burningLimit) external;

    /**
     * @notice Returns the max limit of a minter
     *
     * @param _minter The minter we are viewing the limits of
     *  @return _limit The limit the minter has
     */
    function mintingMaxLimitOf(address _minter) external view returns (uint256 _limit);

    /**
     * @notice Returns the max limit of a bridge
     *
     * @param _bridge the bridge we are viewing the limits of
     * @return _limit The limit the bridge has
     */

    function burningMaxLimitOf(address _bridge) external view returns (uint256 _limit);

    /**
     * @notice Returns the current limit of a minter
     *
     * @param _minter The minter we are viewing the limits of
     * @return _limit The limit the minter has
     */

    function mintingCurrentLimitOf(address _minter) external view returns (uint256 _limit);

    /**
     * @notice Returns the current limit of a bridge
     *
     * @param _bridge the bridge we are viewing the limits of
     * @return _limit The limit the bridge has
     */

    function burningCurrentLimitOf(address _bridge) external view returns (uint256 _limit);

    /**
     * @notice Mints tokens for a user
     * @dev Can only be called by a minter
     * @param _user The address of the user who needs tokens minted
     * @param _amount The amount of tokens being minted
     */

    function mint(address _user, uint256 _amount) external;

    /**
     * @notice Burns tokens for a user
     * @dev Can only be called by a minter
     * @param _user The address of the user who needs tokens burned
     * @param _amount The amount of tokens being burned
     */

    function burn(address _user, uint256 _amount) external;
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"IXERC20_INVALID_0_VALUE","type":"error"},{"inputs":[],"name":"IXERC20_NotFactory","type":"error"},{"inputs":[],"name":"IXERC20_NotHighEnoughLimits","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_mintingLimit","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_burningLimit","type":"uint256"},{"indexed":true,"internalType":"address","name":"_bridge","type":"address"}],"name":"BridgeLimitsSet","type":"event"},{"anonymous":false,"inputs":[],"name":"EIP712DomainChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint8","name":"version","type":"uint8"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_lockbox","type":"address"}],"name":"LockboxSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"FACTORY","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"bridges","outputs":[{"components":[{"internalType":"uint256","name":"timestamp","type":"uint256"},{"internalType":"uint256","name":"ratePerSecond","type":"uint256"},{"internalType":"uint256","name":"maxLimit","type":"uint256"},{"internalType":"uint256","name":"currentLimit","type":"uint256"}],"internalType":"struct IXERC20.BridgeParameters","name":"minterParams","type":"tuple"},{"components":[{"internalType":"uint256","name":"timestamp","type":"uint256"},{"internalType":"uint256","name":"ratePerSecond","type":"uint256"},{"internalType":"uint256","name":"maxLimit","type":"uint256"},{"internalType":"uint256","name":"currentLimit","type":"uint256"}],"internalType":"struct IXERC20.BridgeParameters","name":"burnerParams","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_bridge","type":"address"}],"name":"burningCurrentLimitOf","outputs":[{"internalType":"uint256","name":"_limit","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_bridge","type":"address"}],"name":"burningMaxLimitOf","outputs":[{"internalType":"uint256","name":"_limit","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","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":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"address","name":"_factory","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"lockbox","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_bridge","type":"address"}],"name":"mintingCurrentLimitOf","outputs":[{"internalType":"uint256","name":"_limit","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_bridge","type":"address"}],"name":"mintingMaxLimitOf","outputs":[{"internalType":"uint256","name":"_limit","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_bridge","type":"address"},{"internalType":"uint256","name":"_mintingLimit","type":"uint256"},{"internalType":"uint256","name":"_burningLimit","type":"uint256"}],"name":"setLimits","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_lockbox","type":"address"}],"name":"setLockbox","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

0x608060405234801561001057600080fd5b50600436106101da5760003560e01c8063715018a611610104578063a08d5654116100a2578063ced67f0c11610071578063ced67f0c14610430578063d505accf146104c3578063dd62ed3e146104d6578063f2fde38b146104e957600080fd5b8063a08d5654146103ca578063a457c2d7146103dd578063a9059cbb146103f0578063c1eb71371461040357600080fd5b80638da5cb5b116100de5780638da5cb5b1461038b57806395d89b411461039c578063998955d3146103a45780639dc29fac146103b757600080fd5b8063715018a6146103555780637ecebe001461035d57806384b0196e1461037057600080fd5b8063313ce5671161017c578063435350b71161014b578063435350b7146102f3578063651fd2681461030657806366cc57021461031957806370a082311461032c57600080fd5b8063313ce567146102b65780633644e515146102c557806339509351146102cd57806340c10f19146102e057600080fd5b80630c05f82c116101b85780630c05f82c1461023557806318160ddd1461027057806323b872dd146102785780632dd310001461028b57600080fd5b806306fdde03146101df578063077f224a146101fd578063095ea7b314610212575b600080fd5b6101e76104fc565b6040516101f49190611ba1565b60405180910390f35b61021061020b366004611c73565b61058e565b005b610225610220366004611ce7565b6106aa565b60405190151581526020016101f4565b610262610243366004611d11565b6001600160a01b03166000908152610100602052604090206002015490565b6040519081526020016101f4565b603554610262565b610225610286366004611d2c565b6106c4565b60fe5461029e906001600160a01b031681565b6040516001600160a01b0390911681526020016101f4565b604051601281526020016101f4565b6102626106ea565b6102256102db366004611ce7565b6106f9565b6102106102ee366004611ce7565b61071b565b610210610301366004611d11565b61072a565b610262610314366004611d11565b6107a9565b60ff5461029e906001600160a01b031681565b61026261033a366004611d11565b6001600160a01b031660009081526033602052604090205490565b6102106107de565b61026261036b366004611d11565b6107f2565b610378610810565b6040516101f49796959493929190611d68565b6065546001600160a01b031661029e565b6101e76108ae565b6102626103b2366004611d11565b6108bd565b6102106103c5366004611ce7565b6108f5565b6102106103d8366004611dfe565b61091b565b6102256103eb366004611ce7565b610980565b6102256103fe366004611ce7565b610a06565b610262610411366004611d11565b6001600160a01b03166000908152610100602052604090206006015490565b6104b561043e366004611d11565b610100602090815260009182526040918290208251608080820185528254825260018301548285015260028301548286015260038301546060808401919091528551918201865260048401548252600584015494820194909452600683015494810194909452600790910154918301919091529082565b6040516101f4929190611e31565b6102106104d1366004611e7d565b610a14565b6102626104e4366004611ef0565b610b78565b6102106104f7366004611d11565b610ba3565b60606036805461050b90611f23565b80601f016020809104026020016040519081016040528092919081815260200182805461053790611f23565b80156105845780601f1061055957610100808354040283529160200191610584565b820191906000526020600020905b81548152906001019060200180831161056757829003601f168201915b5050505050905090565b600054610100900460ff16158080156105ae5750600054600160ff909116105b806105c85750303b1580156105c8575060005460ff166001145b6106305760405162461bcd60e51b815260206004820152602e60248201527f496e697469616c697a61626c653a20636f6e747261637420697320616c72656160448201526d191e481a5b9a5d1a585b1a5e995960921b60648201526084015b60405180910390fd5b6000805460ff191660011790558015610653576000805461ff0019166101001790555b61065e848484610c1c565b80156106a4576000805461ff0019169055604051600181527f7f26b83ff96e1f2b6a682f133852f6798a09c465da95921460cefb38474024989060200160405180910390a15b50505050565b6000336106b8818585610c8b565b60019150505b92915050565b6000336106d2858285610daf565b6106dd858585610e23565b60019150505b9392505050565b60006106f4610fce565b905090565b6000336106b881858561070c8383610b78565b6107169190611f6d565b610c8b565b610726338383610fd8565b5050565b60fe546001600160a01b0316331461075557604051632029e52560e01b815260040160405180910390fd5b60ff80546001600160a01b0319166001600160a01b0383169081179091556040519081527ffa2e15ea41196e438f0593ecdd6036acd83bdfcd39d627b77c17eab43f376a399060200160405180910390a150565b6001600160a01b0381166000908152610100602052604081206003810154600282015482546001909301546106be9390611057565b6107e66110cf565b6107f06000611129565b565b6001600160a01b038116600090815260cb60205260408120546106be565b6000606080600080600060606097546000801b1480156108305750609854155b6108745760405162461bcd60e51b81526020600482015260156024820152741152540dcc4c8e88155b9a5b9a5d1a585b1a5e9959605a1b6044820152606401610627565b61087c61117b565b61088461118a565b60408051600080825260208201909252600f60f81b9b939a50919850469750309650945092509050565b60606037805461050b90611f23565b6001600160a01b0381166000908152610100602052604081206007810154600682015460048301546005909301546106be9390611057565b336001600160a01b0383161461091057610910823383610daf565b610726338383611199565b6109236110cf565b61092d8383611213565b61093783826112bb565b60408051838152602081018390526001600160a01b038516917f93f3bbfe8cfb354ec059175107653f49f6eb479a8622a7d83866ea015435c944910160405180910390a2505050565b6000338161098e8286610b78565b9050838110156109ee5760405162461bcd60e51b815260206004820152602560248201527f45524332303a2064656372656173656420616c6c6f77616e63652062656c6f77604482015264207a65726f60d81b6064820152608401610627565b6109fb8286868403610c8b565b506001949350505050565b6000336106b8818585610e23565b83421115610a645760405162461bcd60e51b815260206004820152601d60248201527f45524332305065726d69743a206578706972656420646561646c696e650000006044820152606401610627565b60007f6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9888888610a938c611369565b6040805160208101969096526001600160a01b0394851690860152929091166060840152608083015260a082015260c0810186905260e0016040516020818303038152906040528051906020012090506000610aee82611391565b90506000610afe828787876113be565b9050896001600160a01b0316816001600160a01b031614610b615760405162461bcd60e51b815260206004820152601e60248201527f45524332305065726d69743a20696e76616c6964207369676e617475726500006044820152606401610627565b610b6c8a8a8a610c8b565b50505050505050505050565b6001600160a01b03918216600090815260346020908152604080832093909416825291909152205490565b610bab6110cf565b6001600160a01b038116610c105760405162461bcd60e51b815260206004820152602660248201527f4f776e61626c653a206e6577206f776e657220697320746865207a65726f206160448201526564647265737360d01b6064820152608401610627565b610c1981611129565b50565b600054610100900460ff16610c435760405162461bcd60e51b815260040161062790611f80565b610c4d83836113e6565b610c5683611417565b610c5e611461565b610c6781611129565b60fe80546001600160a01b0319166001600160a01b03929092169190911790555050565b6001600160a01b038316610ced5760405162461bcd60e51b8152602060048201526024808201527f45524332303a20617070726f76652066726f6d20746865207a65726f206164646044820152637265737360e01b6064820152608401610627565b6001600160a01b038216610d4e5760405162461bcd60e51b815260206004820152602260248201527f45524332303a20617070726f766520746f20746865207a65726f206164647265604482015261737360f01b6064820152608401610627565b6001600160a01b0383811660008181526034602090815260408083209487168084529482529182902085905590518481527f8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925910160405180910390a3505050565b6000610dbb8484610b78565b905060001981146106a45781811015610e165760405162461bcd60e51b815260206004820152601d60248201527f45524332303a20696e73756666696369656e7420616c6c6f77616e63650000006044820152606401610627565b6106a48484848403610c8b565b6001600160a01b038316610e875760405162461bcd60e51b815260206004820152602560248201527f45524332303a207472616e736665722066726f6d20746865207a65726f206164604482015264647265737360d81b6064820152608401610627565b6001600160a01b038216610ee95760405162461bcd60e51b815260206004820152602360248201527f45524332303a207472616e7366657220746f20746865207a65726f206164647260448201526265737360e81b6064820152608401610627565b6001600160a01b03831660009081526033602052604090205481811015610f615760405162461bcd60e51b815260206004820152602660248201527f45524332303a207472616e7366657220616d6f756e7420657863656564732062604482015265616c616e636560d01b6064820152608401610627565b6001600160a01b0380851660008181526033602052604080822086860390559286168082529083902080548601905591517fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef90610fc19086815260200190565b60405180910390a36106a4565b60006106f4611490565b80600003610ff95760405163042457a960e21b815260040160405180910390fd5b60ff546001600160a01b03848116911614611048576000611019846107a9565b90508181101561103c576040516305b4215560e11b815260040160405180910390fd5b6110468483611504565b505b611052828261155c565b505050565b838381146110c7574261106d6201518085611f6d565b116110795750826110c7565b426110876201518085611f6d565b11156110c75760006110998442611fcb565b905060006110a78483611fde565b6110b19084611f6d565b90508581116110c057806110c2565b855b925050505b949350505050565b6065546001600160a01b031633146107f05760405162461bcd60e51b815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e65726044820152606401610627565b606580546001600160a01b038381166001600160a01b0319831681179093556040519116919082907f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e090600090a35050565b60606099805461050b90611f23565b6060609a805461050b90611f23565b806000036111ba5760405163042457a960e21b815260040160405180910390fd5b60ff546001600160a01b038481169116146112095760006111da846108bd565b9050818110156111fd576040516305b4215560e11b815260040160405180910390fd5b611207848361161d565b505b6110528282611679565b6001600160a01b038216600090815261010060205260408120600201549061123a846107a9565b6001600160a01b03851660009081526101006020526040902060020184905590506112668383836117ad565b6001600160a01b038516600090815261010060205260409020600301556112906201518084611ff5565b6001600160a01b03909416600090815261010060205260409020600181019490945550504290915550565b6001600160a01b03821660009081526101006020526040812060060154906112e2846108bd565b6001600160a01b038516600090815261010060205260409020600601849055905061130e8383836117ad565b6001600160a01b038516600090815261010060205260409020600701556113386201518084611ff5565b6001600160a01b03909416600090815261010060205260409020600581019490945550504260049092019190915550565b6001600160a01b038116600090815260cb602052604090208054600181018255905b50919050565b60006106be61139e610fce565b8360405161190160f01b8152600281019290925260228201526042902090565b60008060006113cf87878787611804565b915091506113dc816118c8565b5095945050505050565b600054610100900460ff1661140d5760405162461bcd60e51b815260040161062790611f80565b6107268282611a12565b600054610100900460ff1661143e5760405162461bcd60e51b815260040161062790611f80565b610c1981604051806040016040528060018152602001603160f81b815250611a52565b600054610100900460ff166114885760405162461bcd60e51b815260040161062790611f80565b6107f0611aa1565b60007f8b73c3c69bb8fe3d512ecc4cf759cc79239f7b179b0ffacaa9a75d522b39400f6114bb611ad1565b6114c3611b2a565b60408051602081019490945283019190915260608201524660808201523060a082015260c00160405160208183030381529060405280519060200120905090565b600061150f836107a9565b6001600160a01b03841660009081526101006020526040902042905590506115378282611fcb565b6001600160a01b03909316600090815261010060205260409020600301929092555050565b6001600160a01b0382166115b25760405162461bcd60e51b815260206004820152601f60248201527f45524332303a206d696e7420746f20746865207a65726f2061646472657373006044820152606401610627565b80603560008282546115c49190611f6d565b90915550506001600160a01b0382166000818152603360209081526040808320805486019055518481527fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef910160405180910390a35050565b6000611628836108bd565b6001600160a01b0384166000908152610100602052604090204260049091015590506116548282611fcb565b6001600160a01b03909316600090815261010060205260409020600701929092555050565b6001600160a01b0382166116d95760405162461bcd60e51b815260206004820152602160248201527f45524332303a206275726e2066726f6d20746865207a65726f206164647265736044820152607360f81b6064820152608401610627565b6001600160a01b0382166000908152603360205260409020548181101561174d5760405162461bcd60e51b815260206004820152602260248201527f45524332303a206275726e20616d6f756e7420657863656564732062616c616e604482015261636560f01b6064820152608401610627565b6001600160a01b03831660008181526033602090815260408083208686039055603580548790039055518581529192917fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef910160405180910390a3505050565b600080848411156117e3576117c28585611fcb565b90508083116117d25760006117dc565b6117dc8184611fcb565b91506117fc565b6117ed8486611fcb565b90506117f98184611f6d565b91505b509392505050565b6000807f7fffffffffffffffffffffffffffffff5d576e7357a4501ddfe92f46681b20a083111561183b57506000905060036118bf565b6040805160008082526020820180845289905260ff881692820192909252606081018690526080810185905260019060a0016020604051602081039080840390855afa15801561188f573d6000803e3d6000fd5b5050604051601f1901519150506001600160a01b0381166118b8576000600192509250506118bf565b9150600090505b94509492505050565b60008160048111156118dc576118dc612017565b036118e45750565b60018160048111156118f8576118f8612017565b036119455760405162461bcd60e51b815260206004820152601860248201527f45434453413a20696e76616c6964207369676e617475726500000000000000006044820152606401610627565b600281600481111561195957611959612017565b036119a65760405162461bcd60e51b815260206004820152601f60248201527f45434453413a20696e76616c6964207369676e6174757265206c656e677468006044820152606401610627565b60038160048111156119ba576119ba612017565b03610c195760405162461bcd60e51b815260206004820152602260248201527f45434453413a20696e76616c6964207369676e6174757265202773272076616c604482015261756560f01b6064820152608401610627565b600054610100900460ff16611a395760405162461bcd60e51b815260040161062790611f80565b6036611a45838261207b565b506037611052828261207b565b600054610100900460ff16611a795760405162461bcd60e51b815260040161062790611f80565b6099611a85838261207b565b50609a611a92828261207b565b50506000609781905560985550565b600054610100900460ff16611ac85760405162461bcd60e51b815260040161062790611f80565b6107f033611129565b600080611adc61117b565b805190915015611af3578051602090910120919050565b6097548015611b025792915050565b7fc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a4709250505090565b600080611b3561118a565b805190915015611b4c578051602090910120919050565b6098548015611b025792915050565b6000815180845260005b81811015611b8157602081850181015186830182015201611b65565b506000602082860101526020601f19601f83011685010191505092915050565b6020815260006106e36020830184611b5b565b634e487b7160e01b600052604160045260246000fd5b600082601f830112611bdb57600080fd5b813567ffffffffffffffff80821115611bf657611bf6611bb4565b604051601f8301601f19908116603f01168101908282118183101715611c1e57611c1e611bb4565b81604052838152866020858801011115611c3757600080fd5b836020870160208301376000602085830101528094505050505092915050565b80356001600160a01b0381168114611c6e57600080fd5b919050565b600080600060608486031215611c8857600080fd5b833567ffffffffffffffff80821115611ca057600080fd5b611cac87838801611bca565b94506020860135915080821115611cc257600080fd5b50611ccf86828701611bca565b925050611cde60408501611c57565b90509250925092565b60008060408385031215611cfa57600080fd5b611d0383611c57565b946020939093013593505050565b600060208284031215611d2357600080fd5b6106e382611c57565b600080600060608486031215611d4157600080fd5b611d4a84611c57565b9250611d5860208501611c57565b9150604084013590509250925092565b60ff60f81b881681526000602060e081840152611d8860e084018a611b5b565b8381036040850152611d9a818a611b5b565b606085018990526001600160a01b038816608086015260a0850187905284810360c0860152855180825283870192509083019060005b81811015611dec57835183529284019291840191600101611dd0565b50909c9b505050505050505050505050565b600080600060608486031215611e1357600080fd5b611e1c84611c57565b95602085013595506040909401359392505050565b82518152602080840151818301526040808501518184015260608086015181850152845160808501529184015160a084015283015160c083015282015160e082015261010081016106e3565b600080600080600080600060e0888a031215611e9857600080fd5b611ea188611c57565b9650611eaf60208901611c57565b95506040880135945060608801359350608088013560ff81168114611ed357600080fd5b9699959850939692959460a0840135945060c09093013592915050565b60008060408385031215611f0357600080fd5b611f0c83611c57565b9150611f1a60208401611c57565b90509250929050565b600181811c90821680611f3757607f821691505b60208210810361138b57634e487b7160e01b600052602260045260246000fd5b634e487b7160e01b600052601160045260246000fd5b808201808211156106be576106be611f57565b6020808252602b908201527f496e697469616c697a61626c653a20636f6e7472616374206973206e6f74206960408201526a6e697469616c697a696e6760a81b606082015260800190565b818103818111156106be576106be611f57565b80820281158282048414176106be576106be611f57565b60008261201257634e487b7160e01b600052601260045260246000fd5b500490565b634e487b7160e01b600052602160045260246000fd5b601f82111561105257600081815260208120601f850160051c810160208610156120545750805b601f850160051c820191505b8181101561207357828155600101612060565b505050505050565b815167ffffffffffffffff81111561209557612095611bb4565b6120a9816120a38454611f23565b8461202d565b602080601f8311600181146120de57600084156120c65750858301515b600019600386901b1c1916600185901b178555612073565b600085815260208120601f198616915b8281101561210d578886015182559484019460019091019084016120ee565b508582101561212b5787850151600019600388901b60f8161c191681555b5050505050600190811b0190555056fea26469706673582212206734e1ed676d9e71f177d5020c6b3823fa6a8bcf44575072003a77eb926c7c9f64736f6c63430008130033