Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta

More Options

• Similar
• Submit Audit
• Compare

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

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/Pausable.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol";

contract DexalotToken is ERC20, ERC20Burnable, Pausable, Ownable, ERC20Permit, ERC20Votes {
    constructor() ERC20("Dexalot Token", "ALOT") ERC20Permit("Dexalot Token") {
        _mint(msg.sender, 100000000 * 10 ** decimals());
    }

    function pause() public onlyOwner {
        _pause();
    }

    function unpause() public onlyOwner {
        _unpause();
    }

    function _beforeTokenTransfer(address from, address to, uint256 amount)
        internal
        whenNotPaused
        override
    {
        super._beforeTokenTransfer(from, to, amount);
    }

    // The following functions are overrides required by Solidity.

    function _afterTokenTransfer(address from, address to, uint256 amount)
        internal
        override(ERC20, ERC20Votes)
    {
        super._afterTokenTransfer(from, to, amount);
    }

    function _mint(address to, uint256 amount)
        internal
        override(ERC20, ERC20Votes)
    {
        super._mint(to, amount);
    }

    function _burn(address account, uint256 amount)
        internal
        override(ERC20, ERC20Votes)
    {
        super._burn(account, amount);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../utils/Context.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 Ownable is Context {
    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _setOwner(_msgSender());
    }

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

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

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

    function _setOwner(address newOwner) private {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        require(!paused(), "Pausable: paused");
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        require(paused(), "Pausable: not paused");
        _;
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.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.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * 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 ERC20 is Context, IERC20, IERC20Metadata {
    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}.
     *
     * The default value of {decimals} is 18. To select a different value for
     * {decimals} you should overload it.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _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 value {ERC20} uses, unless this function is
     * 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:
     *
     * - `recipient` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, 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}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), 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}.
     *
     * Requirements:
     *
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for ``sender``'s tokens of at least
     * `amount`.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);

        uint256 currentAllowance = _allowances[sender][_msgSender()];
        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
        unchecked {
            _approve(sender, _msgSender(), currentAllowance - 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) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][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) {
        uint256 currentAllowance = _allowances[_msgSender()][spender];
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(_msgSender(), spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `amount` of tokens from `sender` to `recipient`.
     *
     * 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:
     *
     * - `sender` cannot be the zero address.
     * - `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     */
    function _transfer(
        address sender,
        address recipient,
        uint256 amount
    ) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

        uint256 senderBalance = _balances[sender];
        require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[sender] = senderBalance - amount;
        }
        _balances[recipient] += amount;

        emit Transfer(sender, recipient, amount);

        _afterTokenTransfer(sender, recipient, 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;
        _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;
        }
        _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 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 {}
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../ERC20.sol";
import "../../../utils/Context.sol";

/**
 * @dev Extension of {ERC20} that allows token holders to destroy both their own
 * tokens and those that they have an allowance for, in a way that can be
 * recognized off-chain (via event analysis).
 */
abstract contract ERC20Burnable is Context, ERC20 {
    /**
     * @dev Destroys `amount` tokens from the caller.
     *
     * See {ERC20-_burn}.
     */
    function burn(uint256 amount) public virtual {
        _burn(_msgSender(), amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, deducting from the caller's
     * allowance.
     *
     * See {ERC20-_burn} and {ERC20-allowance}.
     *
     * Requirements:
     *
     * - the caller must have allowance for ``accounts``'s tokens of at least
     * `amount`.
     */
    function burnFrom(address account, uint256 amount) public virtual {
        uint256 currentAllowance = allowance(account, _msgSender());
        require(currentAllowance >= amount, "ERC20: burn amount exceeds allowance");
        unchecked {
            _approve(account, _msgSender(), currentAllowance - amount);
        }
        _burn(account, amount);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./draft-IERC20Permit.sol";
import "../ERC20.sol";
import "../../../utils/cryptography/draft-EIP712.sol";
import "../../../utils/cryptography/ECDSA.sol";
import "../../../utils/Counters.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._
 */
abstract contract ERC20Permit is ERC20, IERC20Permit, EIP712 {
    using Counters for Counters.Counter;

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

    // solhint-disable-next-line var-name-mixedcase
    bytes32 private immutable _PERMIT_TYPEHASH =
        keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");

    /**
     * @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.
     */
    constructor(string memory name) EIP712(name, "1") {}

    /**
     * @dev See {IERC20Permit-permit}.
     */
    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 = ECDSA.recover(hash, v, r, s);
        require(signer == owner, "ERC20Permit: invalid signature");

        _approve(owner, spender, value);
    }

    /**
     * @dev See {IERC20Permit-nonces}.
     */
    function nonces(address owner) public view virtual override returns (uint256) {
        return _nonces[owner].current();
    }

    /**
     * @dev See {IERC20Permit-DOMAIN_SEPARATOR}.
     */
    // 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) {
        Counters.Counter storage nonce = _nonces[owner];
        current = nonce.current();
        nonce.increment();
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./draft-ERC20Permit.sol";
import "../../../utils/math/Math.sol";
import "../../../utils/math/SafeCast.sol";
import "../../../utils/cryptography/ECDSA.sol";

/**
 * @dev Extension of ERC20 to support Compound-like voting and delegation. This version is more generic than Compound's,
 * and supports token supply up to 2^224^ - 1, while COMP is limited to 2^96^ - 1.
 *
 * NOTE: If exact COMP compatibility is required, use the {ERC20VotesComp} variant of this module.
 *
 * This extension keeps a history (checkpoints) of each account's vote power. Vote power can be delegated either
 * by calling the {delegate} function directly, or by providing a signature to be used with {delegateBySig}. Voting
 * power can be queried through the public accessors {getVotes} and {getPastVotes}.
 *
 * By default, token balance does not account for voting power. This makes transfers cheaper. The downside is that it
 * requires users to delegate to themselves in order to activate checkpoints and have their voting power tracked.
 * Enabling self-delegation can easily be done by overriding the {delegates} function. Keep in mind however that this
 * will significantly increase the base gas cost of transfers.
 *
 * _Available since v4.2._
 */
abstract contract ERC20Votes is ERC20Permit {
    struct Checkpoint {
        uint32 fromBlock;
        uint224 votes;
    }

    bytes32 private constant _DELEGATION_TYPEHASH =
        keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)");

    mapping(address => address) private _delegates;
    mapping(address => Checkpoint[]) private _checkpoints;
    Checkpoint[] private _totalSupplyCheckpoints;

    /**
     * @dev Emitted when an account changes their delegate.
     */
    event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate);

    /**
     * @dev Emitted when a token transfer or delegate change results in changes to an account's voting power.
     */
    event DelegateVotesChanged(address indexed delegate, uint256 previousBalance, uint256 newBalance);

    /**
     * @dev Get the `pos`-th checkpoint for `account`.
     */
    function checkpoints(address account, uint32 pos) public view virtual returns (Checkpoint memory) {
        return _checkpoints[account][pos];
    }

    /**
     * @dev Get number of checkpoints for `account`.
     */
    function numCheckpoints(address account) public view virtual returns (uint32) {
        return SafeCast.toUint32(_checkpoints[account].length);
    }

    /**
     * @dev Get the address `account` is currently delegating to.
     */
    function delegates(address account) public view virtual returns (address) {
        return _delegates[account];
    }

    /**
     * @dev Gets the current votes balance for `account`
     */
    function getVotes(address account) public view returns (uint256) {
        uint256 pos = _checkpoints[account].length;
        return pos == 0 ? 0 : _checkpoints[account][pos - 1].votes;
    }

    /**
     * @dev Retrieve the number of votes for `account` at the end of `blockNumber`.
     *
     * Requirements:
     *
     * - `blockNumber` must have been already mined
     */
    function getPastVotes(address account, uint256 blockNumber) public view returns (uint256) {
        require(blockNumber < block.number, "ERC20Votes: block not yet mined");
        return _checkpointsLookup(_checkpoints[account], blockNumber);
    }

    /**
     * @dev Retrieve the `totalSupply` at the end of `blockNumber`. Note, this value is the sum of all balances.
     * It is but NOT the sum of all the delegated votes!
     *
     * Requirements:
     *
     * - `blockNumber` must have been already mined
     */
    function getPastTotalSupply(uint256 blockNumber) public view returns (uint256) {
        require(blockNumber < block.number, "ERC20Votes: block not yet mined");
        return _checkpointsLookup(_totalSupplyCheckpoints, blockNumber);
    }

    /**
     * @dev Lookup a value in a list of (sorted) checkpoints.
     */
    function _checkpointsLookup(Checkpoint[] storage ckpts, uint256 blockNumber) private view returns (uint256) {
        // We run a binary search to look for the earliest checkpoint taken after `blockNumber`.
        //
        // During the loop, the index of the wanted checkpoint remains in the range [low-1, high).
        // With each iteration, either `low` or `high` is moved towards the middle of the range to maintain the invariant.
        // - If the middle checkpoint is after `blockNumber`, we look in [low, mid)
        // - If the middle checkpoint is before or equal to `blockNumber`, we look in [mid+1, high)
        // Once we reach a single value (when low == high), we've found the right checkpoint at the index high-1, if not
        // out of bounds (in which case we're looking too far in the past and the result is 0).
        // Note that if the latest checkpoint available is exactly for `blockNumber`, we end up with an index that is
        // past the end of the array, so we technically don't find a checkpoint after `blockNumber`, but it works out
        // the same.
        uint256 high = ckpts.length;
        uint256 low = 0;
        while (low < high) {
            uint256 mid = Math.average(low, high);
            if (ckpts[mid].fromBlock > blockNumber) {
                high = mid;
            } else {
                low = mid + 1;
            }
        }

        return high == 0 ? 0 : ckpts[high - 1].votes;
    }

    /**
     * @dev Delegate votes from the sender to `delegatee`.
     */
    function delegate(address delegatee) public virtual {
        return _delegate(_msgSender(), delegatee);
    }

    /**
     * @dev Delegates votes from signer to `delegatee`
     */
    function delegateBySig(
        address delegatee,
        uint256 nonce,
        uint256 expiry,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual {
        require(block.timestamp <= expiry, "ERC20Votes: signature expired");
        address signer = ECDSA.recover(
            _hashTypedDataV4(keccak256(abi.encode(_DELEGATION_TYPEHASH, delegatee, nonce, expiry))),
            v,
            r,
            s
        );
        require(nonce == _useNonce(signer), "ERC20Votes: invalid nonce");
        return _delegate(signer, delegatee);
    }

    /**
     * @dev Maximum token supply. Defaults to `type(uint224).max` (2^224^ - 1).
     */
    function _maxSupply() internal view virtual returns (uint224) {
        return type(uint224).max;
    }

    /**
     * @dev Snapshots the totalSupply after it has been increased.
     */
    function _mint(address account, uint256 amount) internal virtual override {
        super._mint(account, amount);
        require(totalSupply() <= _maxSupply(), "ERC20Votes: total supply risks overflowing votes");

        _writeCheckpoint(_totalSupplyCheckpoints, _add, amount);
    }

    /**
     * @dev Snapshots the totalSupply after it has been decreased.
     */
    function _burn(address account, uint256 amount) internal virtual override {
        super._burn(account, amount);

        _writeCheckpoint(_totalSupplyCheckpoints, _subtract, amount);
    }

    /**
     * @dev Move voting power when tokens are transferred.
     *
     * Emits a {DelegateVotesChanged} event.
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual override {
        super._afterTokenTransfer(from, to, amount);

        _moveVotingPower(delegates(from), delegates(to), amount);
    }

    /**
     * @dev Change delegation for `delegator` to `delegatee`.
     *
     * Emits events {DelegateChanged} and {DelegateVotesChanged}.
     */
    function _delegate(address delegator, address delegatee) internal virtual {
        address currentDelegate = delegates(delegator);
        uint256 delegatorBalance = balanceOf(delegator);
        _delegates[delegator] = delegatee;

        emit DelegateChanged(delegator, currentDelegate, delegatee);

        _moveVotingPower(currentDelegate, delegatee, delegatorBalance);
    }

    function _moveVotingPower(
        address src,
        address dst,
        uint256 amount
    ) private {
        if (src != dst && amount > 0) {
            if (src != address(0)) {
                (uint256 oldWeight, uint256 newWeight) = _writeCheckpoint(_checkpoints[src], _subtract, amount);
                emit DelegateVotesChanged(src, oldWeight, newWeight);
            }

            if (dst != address(0)) {
                (uint256 oldWeight, uint256 newWeight) = _writeCheckpoint(_checkpoints[dst], _add, amount);
                emit DelegateVotesChanged(dst, oldWeight, newWeight);
            }
        }
    }

    function _writeCheckpoint(
        Checkpoint[] storage ckpts,
        function(uint256, uint256) view returns (uint256) op,
        uint256 delta
    ) private returns (uint256 oldWeight, uint256 newWeight) {
        uint256 pos = ckpts.length;
        oldWeight = pos == 0 ? 0 : ckpts[pos - 1].votes;
        newWeight = op(oldWeight, delta);

        if (pos > 0 && ckpts[pos - 1].fromBlock == block.number) {
            ckpts[pos - 1].votes = SafeCast.toUint224(newWeight);
        } else {
            ckpts.push(Checkpoint({fromBlock: SafeCast.toUint32(block.number), votes: SafeCast.toUint224(newWeight)}));
        }
    }

    function _add(uint256 a, uint256 b) private pure returns (uint256) {
        return a + b;
    }

    function _subtract(uint256 a, uint256 b) private pure returns (uint256) {
        return a - b;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @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 Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

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

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

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

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

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

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

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

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @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

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.
 */
interface IERC20Permit {
    /**
     * @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].
     */
    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

pragma solidity ^0.8.0;

import "./ECDSA.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].
 *
 * _Available since v3.4._
 */
abstract contract EIP712 {
    /* solhint-disable var-name-mixedcase */
    // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to
    // invalidate the cached domain separator if the chain id changes.
    bytes32 private immutable _CACHED_DOMAIN_SEPARATOR;
    uint256 private immutable _CACHED_CHAIN_ID;

    bytes32 private immutable _HASHED_NAME;
    bytes32 private immutable _HASHED_VERSION;
    bytes32 private immutable _TYPE_HASH;

    /* solhint-enable var-name-mixedcase */

    /**
     * @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].
     */
    constructor(string memory name, string memory version) {
        bytes32 hashedName = keccak256(bytes(name));
        bytes32 hashedVersion = keccak256(bytes(version));
        bytes32 typeHash = keccak256(
            "EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"
        );
        _HASHED_NAME = hashedName;
        _HASHED_VERSION = hashedVersion;
        _CACHED_CHAIN_ID = block.chainid;
        _CACHED_DOMAIN_SEPARATOR = _buildDomainSeparator(typeHash, hashedName, hashedVersion);
        _TYPE_HASH = typeHash;
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        if (block.chainid == _CACHED_CHAIN_ID) {
            return _CACHED_DOMAIN_SEPARATOR;
        } else {
            return _buildDomainSeparator(_TYPE_HASH, _HASHED_NAME, _HASHED_VERSION);
        }
    }

    function _buildDomainSeparator(
        bytes32 typeHash,
        bytes32 nameHash,
        bytes32 versionHash
    ) private view returns (bytes32) {
        return keccak256(abi.encode(typeHash, nameHash, versionHash, 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 ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @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 ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV
    }

    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");
        } else if (error == RecoverError.InvalidSignatureV) {
            revert("ECDSA: invalid signature 'v' 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) {
        // Check the signature length
        // - case 65: r,s,v signature (standard)
        // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._
        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.
            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 if (signature.length == 64) {
            bytes32 r;
            bytes32 vs;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            assembly {
                r := mload(add(signature, 0x20))
                vs := mload(add(signature, 0x40))
            }
            return tryRecover(hash, r, vs);
        } 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;
        uint8 v;
        assembly {
            s := and(vs, 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff)
            v := add(shr(255, vs), 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 (v != 27 && v != 28) {
            return (address(0), RecoverError.InvalidSignatureV);
        }

        // 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) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
    }

    /**
     * @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) {
        return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
    }
}

// SPDX-License-Identifier: MIT

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 Counters {
    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

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @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 / b + (a % b == 0 ? 0 : 1);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow
 * checks.
 *
 * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can
 * easily result in undesired exploitation or bugs, since developers usually
 * assume that overflows raise errors. `SafeCast` restores this intuition by
 * reverting the transaction when such an operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 *
 * Can be combined with {SafeMath} and {SignedSafeMath} to extend it to smaller types, by performing
 * all math on `uint256` and `int256` and then downcasting.
 */
library SafeCast {
    /**
     * @dev Returns the downcasted uint224 from uint256, reverting on
     * overflow (when the input is greater than largest uint224).
     *
     * Counterpart to Solidity's `uint224` operator.
     *
     * Requirements:
     *
     * - input must fit into 224 bits
     */
    function toUint224(uint256 value) internal pure returns (uint224) {
        require(value <= type(uint224).max, "SafeCast: value doesn't fit in 224 bits");
        return uint224(value);
    }

    /**
     * @dev Returns the downcasted uint128 from uint256, reverting on
     * overflow (when the input is greater than largest uint128).
     *
     * Counterpart to Solidity's `uint128` operator.
     *
     * Requirements:
     *
     * - input must fit into 128 bits
     */
    function toUint128(uint256 value) internal pure returns (uint128) {
        require(value <= type(uint128).max, "SafeCast: value doesn't fit in 128 bits");
        return uint128(value);
    }

    /**
     * @dev Returns the downcasted uint96 from uint256, reverting on
     * overflow (when the input is greater than largest uint96).
     *
     * Counterpart to Solidity's `uint96` operator.
     *
     * Requirements:
     *
     * - input must fit into 96 bits
     */
    function toUint96(uint256 value) internal pure returns (uint96) {
        require(value <= type(uint96).max, "SafeCast: value doesn't fit in 96 bits");
        return uint96(value);
    }

    /**
     * @dev Returns the downcasted uint64 from uint256, reverting on
     * overflow (when the input is greater than largest uint64).
     *
     * Counterpart to Solidity's `uint64` operator.
     *
     * Requirements:
     *
     * - input must fit into 64 bits
     */
    function toUint64(uint256 value) internal pure returns (uint64) {
        require(value <= type(uint64).max, "SafeCast: value doesn't fit in 64 bits");
        return uint64(value);
    }

    /**
     * @dev Returns the downcasted uint32 from uint256, reverting on
     * overflow (when the input is greater than largest uint32).
     *
     * Counterpart to Solidity's `uint32` operator.
     *
     * Requirements:
     *
     * - input must fit into 32 bits
     */
    function toUint32(uint256 value) internal pure returns (uint32) {
        require(value <= type(uint32).max, "SafeCast: value doesn't fit in 32 bits");
        return uint32(value);
    }

    /**
     * @dev Returns the downcasted uint16 from uint256, reverting on
     * overflow (when the input is greater than largest uint16).
     *
     * Counterpart to Solidity's `uint16` operator.
     *
     * Requirements:
     *
     * - input must fit into 16 bits
     */
    function toUint16(uint256 value) internal pure returns (uint16) {
        require(value <= type(uint16).max, "SafeCast: value doesn't fit in 16 bits");
        return uint16(value);
    }

    /**
     * @dev Returns the downcasted uint8 from uint256, reverting on
     * overflow (when the input is greater than largest uint8).
     *
     * Counterpart to Solidity's `uint8` operator.
     *
     * Requirements:
     *
     * - input must fit into 8 bits.
     */
    function toUint8(uint256 value) internal pure returns (uint8) {
        require(value <= type(uint8).max, "SafeCast: value doesn't fit in 8 bits");
        return uint8(value);
    }

    /**
     * @dev Converts a signed int256 into an unsigned uint256.
     *
     * Requirements:
     *
     * - input must be greater than or equal to 0.
     */
    function toUint256(int256 value) internal pure returns (uint256) {
        require(value >= 0, "SafeCast: value must be positive");
        return uint256(value);
    }

    /**
     * @dev Returns the downcasted int128 from int256, reverting on
     * overflow (when the input is less than smallest int128 or
     * greater than largest int128).
     *
     * Counterpart to Solidity's `int128` operator.
     *
     * Requirements:
     *
     * - input must fit into 128 bits
     *
     * _Available since v3.1._
     */
    function toInt128(int256 value) internal pure returns (int128) {
        require(value >= type(int128).min && value <= type(int128).max, "SafeCast: value doesn't fit in 128 bits");
        return int128(value);
    }

    /**
     * @dev Returns the downcasted int64 from int256, reverting on
     * overflow (when the input is less than smallest int64 or
     * greater than largest int64).
     *
     * Counterpart to Solidity's `int64` operator.
     *
     * Requirements:
     *
     * - input must fit into 64 bits
     *
     * _Available since v3.1._
     */
    function toInt64(int256 value) internal pure returns (int64) {
        require(value >= type(int64).min && value <= type(int64).max, "SafeCast: value doesn't fit in 64 bits");
        return int64(value);
    }

    /**
     * @dev Returns the downcasted int32 from int256, reverting on
     * overflow (when the input is less than smallest int32 or
     * greater than largest int32).
     *
     * Counterpart to Solidity's `int32` operator.
     *
     * Requirements:
     *
     * - input must fit into 32 bits
     *
     * _Available since v3.1._
     */
    function toInt32(int256 value) internal pure returns (int32) {
        require(value >= type(int32).min && value <= type(int32).max, "SafeCast: value doesn't fit in 32 bits");
        return int32(value);
    }

    /**
     * @dev Returns the downcasted int16 from int256, reverting on
     * overflow (when the input is less than smallest int16 or
     * greater than largest int16).
     *
     * Counterpart to Solidity's `int16` operator.
     *
     * Requirements:
     *
     * - input must fit into 16 bits
     *
     * _Available since v3.1._
     */
    function toInt16(int256 value) internal pure returns (int16) {
        require(value >= type(int16).min && value <= type(int16).max, "SafeCast: value doesn't fit in 16 bits");
        return int16(value);
    }

    /**
     * @dev Returns the downcasted int8 from int256, reverting on
     * overflow (when the input is less than smallest int8 or
     * greater than largest int8).
     *
     * Counterpart to Solidity's `int8` operator.
     *
     * Requirements:
     *
     * - input must fit into 8 bits.
     *
     * _Available since v3.1._
     */
    function toInt8(int256 value) internal pure returns (int8) {
        require(value >= type(int8).min && value <= type(int8).max, "SafeCast: value doesn't fit in 8 bits");
        return int8(value);
    }

    /**
     * @dev Converts an unsigned uint256 into a signed int256.
     *
     * Requirements:
     *
     * - input must be less than or equal to maxInt256.
     */
    function toInt256(uint256 value) internal pure returns (int256) {
        // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive
        require(value <= uint256(type(int256).max), "SafeCast: value doesn't fit in an int256");
        return int256(value);
    }
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"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":true,"internalType":"address","name":"delegator","type":"address"},{"indexed":true,"internalType":"address","name":"fromDelegate","type":"address"},{"indexed":true,"internalType":"address","name":"toDelegate","type":"address"}],"name":"DelegateChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegate","type":"address"},{"indexed":false,"internalType":"uint256","name":"previousBalance","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newBalance","type":"uint256"}],"name":"DelegateVotesChanged","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":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","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"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"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":"uint256","name":"amount","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burnFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint32","name":"pos","type":"uint32"}],"name":"checkpoints","outputs":[{"components":[{"internalType":"uint32","name":"fromBlock","type":"uint32"},{"internalType":"uint224","name":"votes","type":"uint224"}],"internalType":"struct ERC20Votes.Checkpoint","name":"","type":"tuple"}],"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":[{"internalType":"address","name":"delegatee","type":"address"}],"name":"delegate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"delegatee","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"uint256","name":"expiry","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"delegateBySig","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"delegates","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"name":"getPastTotalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"name":"getPastVotes","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"getVotes","outputs":[{"internalType":"uint256","name":"","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":[],"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":[{"internalType":"address","name":"account","type":"address"}],"name":"numCheckpoints","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"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":[],"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":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","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"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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