Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta

More Options

• Similar
• Submit Audit
• Compare

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.19;

import {IVotingEscrow} from "../interfaces/IVotingEscrow.sol";
import {SafeCastLibrary} from "./SafeCastLibrary.sol";

library DelegationLogicLibrary {
    using SafeCastLibrary for int128;

    /// @notice Used by `_mint`, `_transferFrom`, `_burn` and `delegate`
    ///         to update delegator voting checkpoints.
    ///         Automatically dedelegates, then updates checkpoint.
    /// @dev This function depends on `_locked` and must be called prior to token state changes.
    ///      If you wish to dedelegate only, use `_delegate(tokenId, 0)` instead.
    /// @param _locked State of all locked balances
    /// @param _numCheckpoints State of all user checkpoint counts
    /// @param _checkpoints State of all user checkpoints
    /// @param _delegates State of all user delegatees
    /// @param _delegator The delegator to update checkpoints for
    /// @param _delegatee The new delegatee for the delegator. Cannot be equal to `_delegator` (use 0 instead).
    /// @param _owner The new (or current) owner for the delegator
    function checkpointDelegator(
        mapping(uint256 => IVotingEscrow.LockedBalance) storage _locked,
        mapping(uint256 => uint48) storage _numCheckpoints,
        mapping(uint256 => mapping(uint48 => IVotingEscrow.Checkpoint)) storage _checkpoints,
        mapping(uint256 => uint256) storage _delegates,
        uint256 _delegator,
        uint256 _delegatee,
        address _owner
    ) external {
        uint256 delegatedBalance = _locked[_delegator].amount.toUint256();
        uint48 numCheckpoint = _numCheckpoints[_delegator];
        IVotingEscrow.Checkpoint storage cpOld = numCheckpoint > 0
            ? _checkpoints[_delegator][numCheckpoint - 1]
            : _checkpoints[_delegator][0];
        // Dedelegate from delegatee if delegated
        checkpointDelegatee(_numCheckpoints, _checkpoints, cpOld.delegatee, delegatedBalance, false);
        IVotingEscrow.Checkpoint storage cp = _checkpoints[_delegator][numCheckpoint];
        cp.fromTimestamp = block.timestamp;
        cp.delegatedBalance = cpOld.delegatedBalance;
        cp.delegatee = _delegatee;
        cp.owner = _owner;

        if (_isCheckpointInNewBlock(_numCheckpoints, _checkpoints, _delegator)) {
            _numCheckpoints[_delegator]++;
        } else {
            _checkpoints[_delegator][numCheckpoint - 1] = cp;
            delete _checkpoints[_delegator][numCheckpoint];
        }

        _delegates[_delegator] = _delegatee;
    }

    /// @notice Update delegatee's `delegatedBalance` by `balance`.
    ///         Only updates if delegating to a new delegatee.
    /// @dev If used with `balance` == `_locked[_tokenId].amount`, then this is the same as
    ///      delegating or dedelegating from `_tokenId`
    ///      If used with `balance` < `_locked[_tokenId].amount`, then this is used to adjust
    ///      `delegatedBalance` when a user's balance is modified (e.g. `increaseAmount`, `merge` etc).
    ///      If `delegatee` is 0 (i.e. user is not delegating), then do nothing.
    /// @param _numCheckpoints State of all user checkpoint counts
    /// @param _checkpoints State of all user checkpoints
    /// @param _delegatee The delegatee's tokenId
    /// @param balance_ The delta in balance change
    /// @param _increase True if balance is increasing, false if decreasing
    function checkpointDelegatee(
        mapping(uint256 => uint48) storage _numCheckpoints,
        mapping(uint256 => mapping(uint48 => IVotingEscrow.Checkpoint)) storage _checkpoints,
        uint256 _delegatee,
        uint256 balance_,
        bool _increase
    ) public {
        if (_delegatee == 0) return;
        uint48 numCheckpoint = _numCheckpoints[_delegatee];
        IVotingEscrow.Checkpoint storage cpOld = numCheckpoint > 0
            ? _checkpoints[_delegatee][numCheckpoint - 1]
            : _checkpoints[_delegatee][0];
        IVotingEscrow.Checkpoint storage cp = _checkpoints[_delegatee][numCheckpoint];
        cp.fromTimestamp = block.timestamp;
        cp.owner = cpOld.owner;
        // do not expect balance_ > cpOld.delegatedBalance when decrementing but just in case
        cp.delegatedBalance = _increase
            ? cpOld.delegatedBalance + balance_
            : (balance_ < cpOld.delegatedBalance ? cpOld.delegatedBalance - balance_ : 0);
        cp.delegatee = cpOld.delegatee;

        if (_isCheckpointInNewBlock(_numCheckpoints, _checkpoints, _delegatee)) {
            _numCheckpoints[_delegatee]++;
        } else {
            _checkpoints[_delegatee][numCheckpoint - 1] = cp;
            delete _checkpoints[_delegatee][numCheckpoint];
        }
    }

    function _isCheckpointInNewBlock(
        mapping(uint256 => uint48) storage _numCheckpoints,
        mapping(uint256 => mapping(uint48 => IVotingEscrow.Checkpoint)) storage _checkpoints,
        uint256 _tokenId
    ) internal view returns (bool) {
        uint48 _nCheckPoints = _numCheckpoints[_tokenId];

        if (_nCheckPoints > 0 && _checkpoints[_tokenId][_nCheckPoints - 1].fromTimestamp == block.timestamp) {
            return false;
        } else {
            return true;
        }
    }

    /// @notice Binary search to get the voting checkpoint for a token id at or prior to a given timestamp.
    /// @dev If a checkpoint does not exist prior to the timestamp, this will return 0.
    /// @param _numCheckpoints State of all user checkpoint counts
    /// @param _checkpoints State of all user checkpoints
    /// @param _tokenId .
    /// @param _timestamp .
    /// @return The index of the checkpoint.
    function getPastVotesIndex(
        mapping(uint256 => uint48) storage _numCheckpoints,
        mapping(uint256 => mapping(uint48 => IVotingEscrow.Checkpoint)) storage _checkpoints,
        uint256 _tokenId,
        uint256 _timestamp
    ) internal view returns (uint48) {
        uint48 nCheckpoints = _numCheckpoints[_tokenId];
        if (nCheckpoints == 0) return 0;
        // First check most recent balance
        if (_checkpoints[_tokenId][nCheckpoints - 1].fromTimestamp <= _timestamp) return (nCheckpoints - 1);
        // Next check implicit zero balance
        if (_checkpoints[_tokenId][0].fromTimestamp > _timestamp) return 0;

        uint48 lower = 0;
        uint48 upper = nCheckpoints - 1;
        while (upper > lower) {
            uint48 center = upper - (upper - lower) / 2; // ceil, avoiding overflow
            IVotingEscrow.Checkpoint storage cp = _checkpoints[_tokenId][center];
            if (cp.fromTimestamp == _timestamp) {
                return center;
            } else if (cp.fromTimestamp < _timestamp) {
                lower = center;
            } else {
                upper = center - 1;
            }
        }
        return lower;
    }

    /// @notice Retrieves historical voting balance for a token id at a given timestamp.
    /// @dev If a checkpoint does not exist prior to the timestamp, this will return 0.
    ///      The user must also own the token at the time in order to receive a voting balance.
    /// @param _numCheckpoints State of all user checkpoint counts
    /// @param _checkpoints State of all user checkpoints
    /// @param _account .
    /// @param _tokenId .
    /// @param _timestamp .
    /// @return Total voting balance including delegations at a given timestamp.
    function getPastVotes(
        mapping(uint256 => uint48) storage _numCheckpoints,
        mapping(uint256 => mapping(uint48 => IVotingEscrow.Checkpoint)) storage _checkpoints,
        address _account,
        uint256 _tokenId,
        uint256 _timestamp
    ) external view returns (uint256) {
        uint48 _checkIndex = getPastVotesIndex(_numCheckpoints, _checkpoints, _tokenId, _timestamp);
        IVotingEscrow.Checkpoint memory lastCheckpoint = _checkpoints[_tokenId][_checkIndex];
        // If no point exists prior to the given timestamp, return 0
        if (lastCheckpoint.fromTimestamp > _timestamp) return 0;
        // Check ownership
        if (_account != lastCheckpoint.owner) return 0;
        uint256 votes = lastCheckpoint.delegatedBalance;
        return
            lastCheckpoint.delegatee == 0
                ? votes + IVotingEscrow(address(this)).balanceOfNFTAt(_tokenId, _timestamp)
                : votes;
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.0;

/// Modified IVotes interface for tokenId based voting
interface IVotes {
    /**
     * @dev Emitted when an account changes their delegate.
     */
    event DelegateChanged(address indexed delegator, uint256 indexed fromDelegate, uint256 indexed toDelegate);

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

    /**
     * @dev Returns the amount of votes that `tokenId` had at a specific moment in the past.
     *      If the account passed in is not the owner, returns 0.
     */
    function getPastVotes(address account, uint256 tokenId, uint256 timepoint) external view returns (uint256);

    /**
     * @dev Returns the total supply of votes available at a specific moment in the past. If the `clock()` is
     * configured to use block numbers, this will return the value the end of the corresponding block.
     *
     * NOTE: This value is the sum of all available votes, which is not necessarily the sum of all delegated votes.
     * Votes that have not been delegated are still part of total supply, even though they would not participate in a
     * vote.
     */
    function getPastTotalSupply(uint256 timepoint) external view returns (uint256);

    /**
     * @dev Returns the delegate that `tokenId` has chosen. Can never be equal to the delegator's `tokenId`.
     *      Returns 0 if not delegated.
     */
    function delegates(uint256 tokenId) external view returns (uint256);

    /**
     * @dev Delegates votes from the sender to `delegatee`.
     */
    function delegate(uint256 delegator, uint256 delegatee) external;

    /**
     * @dev Delegates votes from `delegator` to `delegatee`. Signer must own `delegator`.
     */
    function delegateBySig(
        uint256 delegator,
        uint256 delegatee,
        uint256 nonce,
        uint256 expiry,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IERC165, IERC721, IERC721Metadata} from "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol";
import {IERC6372} from "@openzeppelin/contracts/interfaces/IERC6372.sol";
import {IERC4906} from "@openzeppelin/contracts/interfaces/IERC4906.sol";
import {IVotes} from "../governance/IVotes.sol";

interface IVotingEscrow is IVotes, IERC4906, IERC6372, IERC721Metadata {
    struct LockedBalance {
        int128 amount;
        uint256 end;
        bool isPermanent;
    }

    struct UserPoint {
        int128 bias;
        int128 slope; // # -dweight / dt
        uint256 ts;
        uint256 blk; // block
        uint256 permanent;
    }

    struct GlobalPoint {
        int128 bias;
        int128 slope; // # -dweight / dt
        uint256 ts;
        uint256 blk; // block
        uint256 permanentLockBalance;
    }

    /// @notice A checkpoint for recorded delegated voting weights at a certain timestamp
    struct Checkpoint {
        uint256 fromTimestamp;
        address owner;
        uint256 delegatedBalance;
        uint256 delegatee;
    }

    enum DepositType {
        DEPOSIT_FOR_TYPE,
        CREATE_LOCK_TYPE,
        INCREASE_LOCK_AMOUNT,
        INCREASE_UNLOCK_TIME
    }

    /// @dev Different types of veNFTs:
    /// NORMAL  - typical veNFT
    /// LOCKED  - veNFT which is locked into a MANAGED veNFT
    /// MANAGED - veNFT which can accept the deposit of NORMAL veNFTs
    enum EscrowType {
        NORMAL,
        LOCKED,
        MANAGED
    }

    error AlreadyVoted();
    error AmountTooBig();
    error ERC721ReceiverRejectedTokens();
    error ERC721TransferToNonERC721ReceiverImplementer();
    error InvalidNonce();
    error InvalidSignature();
    error InvalidSignatureS();
    error InvalidManagedNFTId();
    error LockDurationNotInFuture();
    error LockDurationTooLong();
    error LockExpired();
    error LockNotExpired();
    error NoLockFound();
    error NonExistentToken();
    error NotApprovedOrOwner();
    error NotDistributor();
    error NotEmergencyCouncilOrGovernor();
    error NotGovernor();
    error NotGovernorOrManager();
    error NotManagedNFT();
    error NotManagedOrNormalNFT();
    error NotLockedNFT();
    error NotNormalNFT();
    error NotPermanentLock();
    error NotOwner();
    error NotTeam();
    error NotVoter();
    error OwnershipChange();
    error PermanentLock();
    error SameAddress();
    error SameNFT();
    error SameState();
    error SplitNoOwner();
    error SplitNotAllowed();
    error SignatureExpired();
    error TooManyTokenIDs();
    error ZeroAddress();
    error ZeroAmount();
    error ZeroBalance();

    event Deposit(
        address indexed provider,
        uint256 indexed tokenId,
        DepositType indexed depositType,
        uint256 value,
        uint256 locktime,
        uint256 ts
    );
    event Withdraw(address indexed provider, uint256 indexed tokenId, uint256 value, uint256 ts);
    event LockPermanent(address indexed _owner, uint256 indexed _tokenId, uint256 amount, uint256 _ts);
    event UnlockPermanent(address indexed _owner, uint256 indexed _tokenId, uint256 amount, uint256 _ts);
    event Supply(uint256 prevSupply, uint256 supply);
    event Merge(
        address indexed _sender,
        uint256 indexed _from,
        uint256 indexed _to,
        uint256 _amountFrom,
        uint256 _amountTo,
        uint256 _amountFinal,
        uint256 _locktime,
        uint256 _ts
    );
    event Split(
        uint256 indexed _from,
        uint256 indexed _tokenId1,
        uint256 indexed _tokenId2,
        address _sender,
        uint256 _splitAmount1,
        uint256 _splitAmount2,
        uint256 _locktime,
        uint256 _ts
    );
    event CreateManaged(
        address indexed _to,
        uint256 indexed _mTokenId,
        address indexed _from,
        address _lockedManagedReward,
        address _freeManagedReward
    );
    event DepositManaged(
        address indexed _owner,
        uint256 indexed _tokenId,
        uint256 indexed _mTokenId,
        uint256 _weight,
        uint256 _ts
    );
    event WithdrawManaged(
        address indexed _owner,
        uint256 indexed _tokenId,
        uint256 indexed _mTokenId,
        uint256 _weight,
        uint256 _ts
    );
    event SetAllowedManager(address indexed _allowedManager);

    // State variables
    /// @notice Address of Meta-tx Forwarder
    function forwarder() external view returns (address);

    /// @notice Address of FactoryRegistry.sol
    function factoryRegistry() external view returns (address);

    /// @notice Address of token (NEP) used to create a veNFT
    function token() external view returns (address);

    /// @notice Address of RewardsDistributor.sol
    function distributor() external view returns (address);

    /// @notice Address of Voter.sol
    function voter() external view returns (address);

    /// @notice Address of Protocol Team multisig
    function team() external view returns (address);

    /// @notice Address of art proxy used for on-chain art generation
    function artProxy() external view returns (address);

    /// @dev address which can create managed NFTs
    function allowedManager() external view returns (address);

    /// @dev Current count of token
    function tokenId() external view returns (uint256);

    /*///////////////////////////////////////////////////////////////
                            MANAGED NFT STORAGE
    //////////////////////////////////////////////////////////////*/

    /// @dev Mapping of token id to escrow type
    ///      Takes advantage of the fact default value is EscrowType.NORMAL
    function escrowType(uint256 tokenId) external view returns (EscrowType);

    /// @dev Mapping of token id to managed id
    function idToManaged(uint256 tokenId) external view returns (uint256 managedTokenId);

    /// @dev Mapping of user token id to managed token id to weight of token id
    function weights(uint256 tokenId, uint256 managedTokenId) external view returns (uint256 weight);

    /// @dev Mapping of managed id to deactivated state
    function deactivated(uint256 tokenId) external view returns (bool inactive);

    /// @dev Mapping from managed nft id to locked managed rewards
    ///      `token` denominated rewards (rebases/rewards) stored in locked managed rewards contract
    ///      to prevent co-mingling of assets
    function managedToLocked(uint256 tokenId) external view returns (address);

    /// @dev Mapping from managed nft id to free managed rewards contract
    ///      these rewards can be freely withdrawn by users
    function managedToFree(uint256 tokenId) external view returns (address);

    /*///////////////////////////////////////////////////////////////
                            MANAGED NFT LOGIC
    //////////////////////////////////////////////////////////////*/

    /// @notice Create managed NFT (a permanent lock) for use within ecosystem.
    /// @dev Throws if address already owns a managed NFT.
    /// @return _mTokenId managed token id.
    function createManagedLockFor(address _to) external returns (uint256 _mTokenId);

    /// @notice Delegates balance to managed nft
    ///         Note that NFTs deposited into a managed NFT will be re-locked
    ///         to the maximum lock time on withdrawal.
    ///         Permanent locks that are deposited will automatically unlock.
    /// @dev Managed nft will remain max-locked as long as there is at least one
    ///      deposit or withdrawal per week.
    ///      Throws if deposit nft is managed.
    ///      Throws if recipient nft is not managed.
    ///      Throws if deposit nft is already locked.
    ///      Throws if not called by voter.
    /// @param _tokenId tokenId of NFT being deposited
    /// @param _mTokenId tokenId of managed NFT that will receive the deposit
    function depositManaged(uint256 _tokenId, uint256 _mTokenId) external;

    /// @notice Retrieves locked rewards and withdraws balance from managed nft.
    ///         Note that the NFT withdrawn is re-locked to the maximum lock time.
    /// @dev Throws if NFT not locked.
    ///      Throws if not called by voter.
    /// @param _tokenId tokenId of NFT being deposited.
    function withdrawManaged(uint256 _tokenId) external;

    /// @notice Permit one address to call createManagedLockFor() that is not Voter.governor()
    function setAllowedManager(address _allowedManager) external;

    /// @notice Set Managed NFT state. Inactive NFTs cannot be deposited into.
    /// @param _mTokenId managed nft state to set
    /// @param _state true => inactive, false => active
    function setManagedState(uint256 _mTokenId, bool _state) external;

    /*///////////////////////////////////////////////////////////////
                             METADATA STORAGE
    //////////////////////////////////////////////////////////////*/

    function name() external view returns (string memory);

    function symbol() external view returns (string memory);

    function version() external view returns (string memory);

    function decimals() external view returns (uint8);

    function setTeam(address _team) external;

    function setArtProxy(address _proxy) external;

    /// @inheritdoc IERC721Metadata
    function tokenURI(uint256 tokenId) external view returns (string memory);

    /*//////////////////////////////////////////////////////////////
                      ERC721 BALANCE/OWNER STORAGE
    //////////////////////////////////////////////////////////////*/

    /// @dev Mapping from owner address to mapping of index to tokenId
    function ownerToNFTokenIdList(address _owner, uint256 _index) external view returns (uint256 _tokenId);

    /// @inheritdoc IERC721
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /// @inheritdoc IERC721
    function balanceOf(address owner) external view returns (uint256 balance);

    /*//////////////////////////////////////////////////////////////
                         ERC721 APPROVAL STORAGE
    //////////////////////////////////////////////////////////////*/

    /// @inheritdoc IERC721
    function getApproved(uint256 _tokenId) external view returns (address operator);

    /// @inheritdoc IERC721
    function isApprovedForAll(address owner, address operator) external view returns (bool);

    /// @notice Check whether spender is owner or an approved user for a given veNFT
    /// @param _spender .
    /// @param _tokenId .
    function isApprovedOrOwner(address _spender, uint256 _tokenId) external returns (bool);

    /*//////////////////////////////////////////////////////////////
                              ERC721 LOGIC
    //////////////////////////////////////////////////////////////*/

    /// @inheritdoc IERC721
    function approve(address to, uint256 tokenId) external;

    /// @inheritdoc IERC721
    function setApprovalForAll(address operator, bool approved) external;

    /// @inheritdoc IERC721
    function transferFrom(address from, address to, uint256 tokenId) external;

    /// @inheritdoc IERC721
    function safeTransferFrom(address from, address to, uint256 tokenId) external;

    /// @inheritdoc IERC721
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;

    /*//////////////////////////////////////////////////////////////
                              ERC165 LOGIC
    //////////////////////////////////////////////////////////////*/

    /// @inheritdoc IERC165
    function supportsInterface(bytes4 _interfaceID) external view returns (bool);

    /*//////////////////////////////////////////////////////////////
                             ESCROW STORAGE
    //////////////////////////////////////////////////////////////*/

    /// @notice Total count of epochs witnessed since contract creation
    function epoch() external view returns (uint256);

    /// @notice Total amount of token() deposited
    function supply() external view returns (uint256);

    /// @notice Aggregate permanent locked balances
    function permanentLockBalance() external view returns (uint256);

    function userPointEpoch(uint256 _tokenId) external view returns (uint256 _epoch);

    /// @notice time -> signed slope change
    function slopeChanges(uint256 _timestamp) external view returns (int128);

    /// @notice account -> can split
    function canSplit(address _account) external view returns (bool);

    /// @notice Global point history at a given index
    function pointHistory(uint256 _loc) external view returns (GlobalPoint memory);

    /// @notice Get the LockedBalance (amount, end) of a _tokenId
    /// @param _tokenId .
    /// @return LockedBalance of _tokenId
    function locked(uint256 _tokenId) external view returns (LockedBalance memory);

    /// @notice User -> UserPoint[userEpoch]
    function userPointHistory(uint256 _tokenId, uint256 _loc) external view returns (UserPoint memory);

    /*//////////////////////////////////////////////////////////////
                              ESCROW LOGIC
    //////////////////////////////////////////////////////////////*/

    /// @notice Record global data to checkpoint
    function checkpoint() external;

    /// @notice Deposit `_value` tokens for `_tokenId` and add to the lock
    /// @dev Anyone (even a smart contract) can deposit for someone else, but
    ///      cannot extend their locktime and deposit for a brand new user
    /// @param _tokenId lock NFT
    /// @param _value Amount to add to user's lock
    function depositFor(uint256 _tokenId, uint256 _value) external;

    /// @notice Deposit `_value` tokens for `msg.sender` and lock for `_lockDuration`
    /// @param _value Amount to deposit
    /// @param _lockDuration Number of seconds to lock tokens for (rounded down to nearest week)
    /// @return TokenId of created veNFT
    function createLock(uint256 _value, uint256 _lockDuration) external returns (uint256);

    /// @notice Deposit `_value` tokens for `_to` and lock for `_lockDuration`
    /// @param _value Amount to deposit
    /// @param _lockDuration Number of seconds to lock tokens for (rounded down to nearest week)
    /// @param _to Address to deposit
    /// @return TokenId of created veNFT
    function createLockFor(uint256 _value, uint256 _lockDuration, address _to) external returns (uint256);

    /// @notice Deposit `_value` additional tokens for `_tokenId` without modifying the unlock time
    /// @param _value Amount of tokens to deposit and add to the lock
    function increaseAmount(uint256 _tokenId, uint256 _value) external;

    /// @notice Extend the unlock time for `_tokenId`
    ///         Cannot extend lock time of permanent locks
    /// @param _lockDuration New number of seconds until tokens unlock
    function increaseUnlockTime(uint256 _tokenId, uint256 _lockDuration) external;

    /// @notice Withdraw all tokens for `_tokenId`
    /// @dev Only possible if the lock is both expired and not permanent
    ///      This will burn the veNFT. Any rebases or rewards that are unclaimed
    ///      will no longer be claimable. Claim all rebases and rewards prior to calling this.
    function withdraw(uint256 _tokenId) external;

    /// @notice Merges `_from` into `_to`.
    /// @dev Cannot merge `_from` locks that are permanent or have already voted this epoch.
    ///      Cannot merge `_to` locks that have already expired.
    ///      This will burn the veNFT. Any rebases or rewards that are unclaimed
    ///      will no longer be claimable. Claim all rebases and rewards prior to calling this.
    /// @param _from VeNFT to merge from.
    /// @param _to VeNFT to merge into.
    function merge(uint256 _from, uint256 _to) external;

    /// @notice Splits veNFT into two new veNFTS - one with oldLocked.amount - `_amount`, and the second with `_amount`
    /// @dev    This burns the tokenId of the target veNFT
    ///         Callable by approved or owner
    ///         If this is called by approved, approved will not have permissions to manipulate the newly created veNFTs
    ///         Returns the two new split veNFTs to owner
    ///         If `from` is permanent, will automatically dedelegate.
    ///         This will burn the veNFT. Any rebases or rewards that are unclaimed
    ///         will no longer be claimable. Claim all rebases and rewards prior to calling this.
    /// @param _from VeNFT to split.
    /// @param _amount Amount to split from veNFT.
    /// @return _tokenId1 Return tokenId of veNFT with oldLocked.amount - `_amount`.
    /// @return _tokenId2 Return tokenId of veNFT with `_amount`.
    function split(uint256 _from, uint256 _amount) external returns (uint256 _tokenId1, uint256 _tokenId2);

    /// @notice Toggle split for a specific address.
    /// @dev Toggle split for address(0) to enable or disable for all.
    /// @param _account Address to toggle split permissions
    /// @param _bool True to allow, false to disallow
    function toggleSplit(address _account, bool _bool) external;

    /// @notice Permanently lock a veNFT. Voting power will be equal to
    ///         `LockedBalance.amount` with no decay. Required to delegate.
    /// @dev Only callable by unlocked normal veNFTs.
    /// @param _tokenId tokenId to lock.
    function lockPermanent(uint256 _tokenId) external;

    /// @notice Unlock a permanently locked veNFT. Voting power will decay.
    ///         Will automatically dedelegate if delegated.
    /// @dev Only callable by permanently locked veNFTs.
    ///      Cannot unlock if already voted this epoch.
    /// @param _tokenId tokenId to unlock.
    function unlockPermanent(uint256 _tokenId) external;

    /*///////////////////////////////////////////////////////////////
                           GAUGE VOTING STORAGE
    //////////////////////////////////////////////////////////////*/

    /// @notice Get the voting power for _tokenId at the current timestamp
    /// @dev Returns 0 if called in the same block as a transfer.
    /// @param _tokenId .
    /// @return Voting power
    function balanceOfNFT(uint256 _tokenId) external view returns (uint256);

    /// @notice Get the voting power for _tokenId at a given timestamp
    /// @param _tokenId .
    /// @param _t Timestamp to query voting power
    /// @return Voting power
    function balanceOfNFTAt(uint256 _tokenId, uint256 _t) external view returns (uint256);

    /// @notice Calculate total voting power at current timestamp
    /// @return Total voting power at current timestamp
    function totalSupply() external view returns (uint256);

    /// @notice Calculate total voting power at a given timestamp
    /// @param _t Timestamp to query total voting power
    /// @return Total voting power at given timestamp
    function totalSupplyAt(uint256 _t) external view returns (uint256);

    /*///////////////////////////////////////////////////////////////
                            GAUGE VOTING LOGIC
    //////////////////////////////////////////////////////////////*/

    /// @notice See if a queried _tokenId has actively voted
    /// @param _tokenId .
    /// @return True if voted, else false
    function voted(uint256 _tokenId) external view returns (bool);

    /// @notice Set the global state voter and distributor
    /// @dev This is only called once, at setup
    function setVoterAndDistributor(address _voter, address _distributor) external;

    /// @notice Set `voted` for _tokenId to true or false
    /// @dev Only callable by voter
    /// @param _tokenId .
    /// @param _voted .
    function voting(uint256 _tokenId, bool _voted) external;

    /*///////////////////////////////////////////////////////////////
                            DAO VOTING STORAGE
    //////////////////////////////////////////////////////////////*/

    /// @notice The number of checkpoints for each tokenId
    function numCheckpoints(uint256 tokenId) external view returns (uint48);

    /// @notice A record of states for signing / validating signatures
    function nonces(address account) external view returns (uint256);

    /// @inheritdoc IVotes
    function delegates(uint256 delegator) external view returns (uint256);

    /// @notice A record of delegated token checkpoints for each account, by index
    /// @param tokenId .
    /// @param index .
    /// @return Checkpoint
    function checkpoints(uint256 tokenId, uint48 index) external view returns (Checkpoint memory);

    /// @inheritdoc IVotes
    function getPastVotes(address account, uint256 tokenId, uint256 timestamp) external view returns (uint256);

    /// @inheritdoc IVotes
    function getPastTotalSupply(uint256 timestamp) external view returns (uint256);

    /*///////////////////////////////////////////////////////////////
                             DAO VOTING LOGIC
    //////////////////////////////////////////////////////////////*/

    /// @inheritdoc IVotes
    function delegate(uint256 delegator, uint256 delegatee) external;

    /// @inheritdoc IVotes
    function delegateBySig(
        uint256 delegator,
        uint256 delegatee,
        uint256 nonce,
        uint256 expiry,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /*//////////////////////////////////////////////////////////////
                              ERC6372 LOGIC
    //////////////////////////////////////////////////////////////*/

    /// @inheritdoc IERC6372
    function clock() external view returns (uint48);

    /// @inheritdoc IERC6372
    function CLOCK_MODE() external view returns (string memory);
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.19;

/// @title SafeCast Library
/// @notice Safely convert unsigned and signed integers without overflow / underflow
library SafeCastLibrary {
    error SafeCastOverflow();
    error SafeCastUnderflow();

    /// @dev Safely convert uint256 to int128
    function toInt128(uint256 value) internal pure returns (int128) {
        if (value > uint128(type(int128).max)) revert SafeCastOverflow();
        return int128(uint128(value));
    }

    /// @dev Safely convert int128 to uint256
    function toUint256(int128 value) internal pure returns (uint256) {
        if (value < 0) revert SafeCastUnderflow();
        return uint256(int256(value));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol)

pragma solidity ^0.8.0;

import "../utils/introspection/IERC165.sol";

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC165.sol";
import "./IERC721.sol";

/// @title EIP-721 Metadata Update Extension
interface IERC4906 is IERC165, IERC721 {
    /// @dev This event emits when the metadata of a token is changed.
    /// So that the third-party platforms such as NFT market could
    /// timely update the images and related attributes of the NFT.
    event MetadataUpdate(uint256 _tokenId);

    /// @dev This event emits when the metadata of a range of tokens is changed.
    /// So that the third-party platforms such as NFT market could
    /// timely update the images and related attributes of the NFTs.
    event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (interfaces/IERC6372.sol)

pragma solidity ^0.8.0;

interface IERC6372 {
    /**
     * @dev Clock used for flagging checkpoints. Can be overridden to implement timestamp based checkpoints (and voting).
     */
    function clock() external view returns (uint48);

    /**
     * @dev Description of the clock
     */
    // solhint-disable-next-line func-name-mixedcase
    function CLOCK_MODE() external view returns (string memory);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC721.sol)

pragma solidity ^0.8.0;

import "../token/ERC721/IERC721.sol";

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

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

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

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

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

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

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

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

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 tokenId) external;

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

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

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "remappings": [
    "@opengsn/=lib/gsn/packages/",
    "@openzeppelin/=lib/openzeppelin-contracts/",
    "@uniswap/v3-core/=lib/v3-core/",
    "ds-test/=lib/ds-test/src/",
    "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
    "forge-std/=lib/forge-std/src/",
    "gsn/=lib/gsn/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "solady/=lib/solady/src/",
    "utils/=test/utils/"
  ],
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"name":"SafeCastUnderflow","type":"error"}]

610a8961003a600b82828239805160001a60731461002d57634e487b7160e01b600052600060045260246000fd5b30600052607381538281f3fe730000000000000000000000000000000000000000301460806040526004361061004b5760003560e01c8063656a7ea614610050578063690f66bf14610075578063ebe3337214610097575b600080fd5b61006361005e366004610885565b6100b7565b60405190815260200160405180910390f35b81801561008157600080fd5b506100956100903660046108cc565b6101f0565b005b8180156100a357600080fd5b506100956100b2366004610928565b61045d565b6000806100c687878686610677565b60008581526020888152604080832065ffffffffffff851684528252918290208251608081018452815480825260018301546001600160a01b03169382019390935260028201549381019390935260030154606083015291925090841015610133576000925050506101e7565b80602001516001600160a01b0316866001600160a01b03161461015b576000925050506101e7565b604081015160608201511561017057806101e1565b604051637028a55d60e11b81526004810187905260248101869052309063e0514aba90604401602060405180830381865afa1580156101b3573d6000803e3d6000fd5b505050506040513d601f19601f820116820180604052508101906101d7919061097a565b6101e190826109a9565b93505050505b95945050505050565b60008381526020889052604081205461020b90600f0b6107ca565b60008581526020899052604081205491925065ffffffffffff9091169081610249576000868152602089815260408083208380529091529020610282565b6000868152602089905260408120906102636001856109c2565b65ffffffffffff1665ffffffffffff1681526020019081526020016000205b90506102968989836003015486600061045d565b60008681526020898152604080832065ffffffffffff86168452909152902042815560028281015490820155600381018690556001810180546001600160a01b0319166001600160a01b0387161790556102f18a8a896107f6565b1561034057600087815260208b905260408120805465ffffffffffff1691610318836109e8565b91906101000a81548165ffffffffffff021916908365ffffffffffff16021790555050610443565b600087815260208a905260408120829161035b6001876109c2565b65ffffffffffff1665ffffffffffff168152602001908152602001600020600082015481600001556001820160009054906101000a90046001600160a01b03168160010160006101000a8154816001600160a01b0302191690836001600160a01b03160217905550600282015481600201556003820154816003015590505088600088815260200190815260200160002060008465ffffffffffff1665ffffffffffff1681526020019081526020016000206000808201600090556001820160006101000a8154906001600160a01b0302191690556002820160009055600382016000905550505b505050600093845250506020929092526040902055505050565b82156106705760008381526020869052604081205465ffffffffffff16908161049c5760008581526020878152604080832083805290915290206104d5565b6000858152602087905260408120906104b66001856109c2565b65ffffffffffff1665ffffffffffff1681526020019081526020016000205b60008681526020888152604080832065ffffffffffff87168452909152902042815560018083015490820180546001600160a01b0319166001600160a01b039092169190911790559091508361054c578160020154851061053757600061055c565b8482600201546105479190610a0d565b61055c565b84826002015461055c91906109a9565b6002820155600380830154908201556105768888886107f6565b156105c5576000868152602089905260408120805465ffffffffffff169161059d836109e8565b91906101000a81548165ffffffffffff021916908365ffffffffffff1602179055505061066c565b600086815260208890526040812082916105e06001876109c2565b65ffffffffffff9081168252602080830193909352604091820160009081208554815560018087015481830180546001600160a01b039092166001600160a01b031992831617905560028089015481850155600398890154938901939093558d84528e8752858420948b1684529390955292812081815593840180549092169091559082018190559101555b5050505b5050505050565b60008281526020859052604081205465ffffffffffff1680820361069f5760009150506107c2565b600084815260208690526040812084916106ba6001856109c2565b65ffffffffffff168152602081019190915260400160002054116106eb576106e36001826109c2565b9150506107c2565b6000848152602086815260408083208380529091529020548310156107145760009150506107c2565b6000806107226001846109c2565b90505b8165ffffffffffff168165ffffffffffff1611156107bd576000600261074b84846109c2565b6107559190610a20565b61075f90836109c2565b600088815260208a8152604080832065ffffffffffff851684529091529020805491925090879003610797575093506107c292505050565b80548711156107a8578193506107b6565b6107b36001836109c2565b92505b5050610725565b509150505b949350505050565b60008082600f0b12156107ef5760405162406f5d60e21b815260040160405180910390fd5b50600f0b90565b60008181526020849052604081205465ffffffffffff16801580159061084d5750600083815260208590526040812042916108326001856109c2565b65ffffffffffff168152602081019190915260400160002054145b1561085c576000915050610862565b60019150505b9392505050565b80356001600160a01b038116811461088057600080fd5b919050565b600080600080600060a0868803121561089d57600080fd5b85359450602086013593506108b460408701610869565b94979396509394606081013594506080013592915050565b600080600080600080600060e0888a0312156108e757600080fd5b873596506020880135955060408801359450606088013593506080880135925060a0880135915061091a60c08901610869565b905092959891949750929550565b600080600080600060a0868803121561094057600080fd5b853594506020860135935060408601359250606086013591506080860135801515811461096c57600080fd5b809150509295509295909350565b60006020828403121561098c57600080fd5b5051919050565b634e487b7160e01b600052601160045260246000fd5b808201808211156109bc576109bc610993565b92915050565b65ffffffffffff8281168282160390808211156109e1576109e1610993565b5092915050565b600065ffffffffffff808316818103610a0357610a03610993565b6001019392505050565b818103818111156109bc576109bc610993565b600065ffffffffffff80841680610a4757634e487b7160e01b600052601260045260246000fd5b9216919091049291505056fea2646970667358221220829b53da859e96bb70aab52d6bcf1ff77241bcd7952ca642196459403d1feea264736f6c63430008130033

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