SelfDelegationEscrowIVotesAdapter

{{
  "language": "Solidity",
  "sources": {
    "lib/ve-governance/src/delegation/SelfDelegationEscrowIVotesAdapter.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

import {EscrowIVotesAdapter} from "@delegation/EscrowIVotesAdapter.sol";

/// @title SelfDelegationEscrowIVotesAdapter
/// @notice A minimal fork of EscrowIVotesAdapter that enforces self-delegation only
/// @dev Restricts users to only delegate their voting power to themselves.
///      Preserves all auto-delegation behavior from the parent contract:
///      1. Calling delegate(self) auto-delegates all existing tokens
///      2. Future locks are auto-delegated via moveDelegateVotes hook
contract SelfDelegationEscrowIVotesAdapter is EscrowIVotesAdapter {
    /// @notice Constructor with same signature as parent for deployment compatibility
    /// @param _coefficients Array of [constant, linear, quadratic] coefficients for voting power curve
    /// @param _maxEpochs Maximum number of epochs for the curve
    constructor(
        int256[3] memory _coefficients,
        uint256 _maxEpochs
    ) EscrowIVotesAdapter(_coefficients, _maxEpochs) {}

    /// @notice Override to enforce self-delegation only
    /// @dev Users can ONLY delegate to themselves. Attempting to delegate to others reverts.
    ///      Auto-delegation behavior is preserved:
    ///      - All existing tokens are immediately delegated to self
    ///      - Future locks auto-delegate via moveDelegateVotes hook
    /// @param _delegatee Must equal msg.sender, otherwise reverts with DelegationNotAllowed
    function delegate(address _delegatee) public override whenNotPaused {
        address sender = _msgSender();

        // ENFORCE: Only self-delegation allowed
        if (_delegatee != sender) {
            revert DelegationNotAllowed();
        }

        // Call parent implementation to preserve all auto-delegation logic
        super.delegate(_delegatee);
    }
}
"
    },
    "lib/ve-governance/src/delegation/EscrowIVotesAdapter.sol": {
      "content": "/// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

import {
    IVotesUpgradeable
} from "@openzeppelin/contracts-upgradeable/governance/utils/IVotesUpgradeable.sol";
import {
    SafeCastUpgradeable
} from "@openzeppelin/contracts-upgradeable/utils/math/SafeCastUpgradeable.sol";
import {
    ReentrancyGuardUpgradeable as ReentrancyGuard
} from "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";
import {
    PausableUpgradeable as Pausable
} from "@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol";
import {IERC721EnumerableMintableBurnable as IERC721EMB} from "@lock/IERC721EMB.sol";

import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
import {IERC6372} from "@openzeppelin/contracts/interfaces/IERC6372.sol";

import {IDAO} from "@aragon/osx-commons-contracts/src/dao/IDAO.sol";
import {
    DaoAuthorizableUpgradeable as DaoAuthorizable
} from "@aragon/osx-commons-contracts/src/permission/auth/DaoAuthorizableUpgradeable.sol";

import {
    IVotingEscrowIncreasingV1_2_0 as IVotingEscrow
} from "@escrow/IVotingEscrowIncreasing_v1_2_0.sol";
import {VotingEscrowV1_2_0 as VotingEscrow} from "@escrow/VotingEscrowIncreasing_v1_2_0.sol";

import {IClockV1_2_0 as IClock} from "@clock/IClock_v1_2_0.sol";

import {IEscrowIVotesAdapter, IDelegateMoveVoteRecipient} from "./IEscrowIVotesAdapter.sol";
import {CurveConstantLib} from "@libs/CurveConstantLib.sol";
import {SignedFixedPointMath} from "@libs/SignedFixedPointMathLib.sol";
import {DelegationHelper} from "./DelegationHelper.sol";

contract EscrowIVotesAdapter is
    IERC6372,
    ReentrancyGuard,
    Pausable,
    DaoAuthorizable,
    UUPSUpgradeable,
    DelegationHelper
{
    using SafeCastUpgradeable for uint256;

    /// @notice The Gauge admin can can create and manage voting gauges for token holders
    bytes32 public constant DELEGATION_ADMIN_ROLE = keccak256("DELEGATION_ADMIN");

    /// @notice The role used to call `setDelegateAddress` and delegate/undelegate for specific tokens.
    bytes32 public constant DELEGATION_TOKEN_ROLE = keccak256("DELEGATION_TOKEN_ROLE");

    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable
    int256 public immutable SHARED_QUADRATIC_COEFFICIENT;
    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable
    int256 public immutable SHARED_LINEAR_COEFFICIENT;
    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable
    int256 public immutable SHARED_CONSTANT_COEFFICIENT;
    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable
    uint256 public immutable MAX_EPOCHS;
    
    /// @notice Clock contract for epoch duration
    address public escrowClock;

    mapping(address => mapping(uint256 => int256)) internal slopeChanges;
    mapping(address => mapping(uint256 => GlobalPoint)) public pointHistory;
    mapping(address => address) private delegatees_;

    mapping(address => uint256) public latestPointIndex;
    mapping(address => bool) private autoDelegationDisabled_;

    uint256 private maxTime;

    /*///////////////////////////////////////////////////////////////
                            Initialization
    //////////////////////////////////////////////////////////////*/

    /// @custom:oz-upgrades-unsafe-allow constructor
    constructor(int256[3] memory _coefficients, uint256 _maxEpochs) {
        SHARED_CONSTANT_COEFFICIENT = _coefficients[0];
        SHARED_LINEAR_COEFFICIENT = _coefficients[1];
        SHARED_QUADRATIC_COEFFICIENT = _coefficients[2];

        MAX_EPOCHS = _maxEpochs;

        _disableInitializers();
    }

    function initialize(
        address _dao,
        address _escrow,
        address _clock,
        bool _startPaused
    ) external initializer {
        __DaoAuthorizableUpgradeable_init(IDAO(_dao));
        __ReentrancyGuard_init();
        __DelegationHelper_init(_escrow);

        escrowClock = _clock;

        if (_startPaused) _pause();

        maxTime = IClock(escrowClock).epochDuration() * MAX_EPOCHS;
    }

    function pause() external auth(DELEGATION_ADMIN_ROLE) {
        _pause();
    }

    function unpause() external auth(DELEGATION_ADMIN_ROLE) {
        _unpause();
    }

    /// @dev Note that by default, auto delegation of tokenIds is turned on.
    function setAutoDelegationDisabled(bool _disabled) external {
        address sender = _msgSender();

        autoDelegationDisabled_[sender] = _disabled;
        emit AutoDelegationDisabledSet(sender, _disabled);
    }

    /*//////////////////////////////////////////////////////////////
                        Delegate Functions
    //////////////////////////////////////////////////////////////*/

    /// @param _delegatee The new delegatee address.
    /// @dev Allows to change a delegatee address. This is useful
    ///      for cases when delegator has huge number of tokens in
    ///      which case  `delegate(address)` would go out of gas.
    ///      In rare cases, Caller first has to undelegate all tokens,
    ///      then call this function and then call `delegate(tokenIds)`.
    function setDelegateAddress(
        address _delegatee
    ) public whenNotPaused auth(DELEGATION_TOKEN_ROLE) {
        address sender = _msgSender();

        if (numberOfDelegatedTokens[sender] != 0) {
            revert DelegationNotAllowed();
        }

        address currentDelegatee = delegates(sender);
        delegatees_[sender] = _delegatee;

        emit DelegateChanged(sender, currentDelegatee, _delegatee);
    }

    /// @dev Note that `_tokenIds` must be either owned or approved to sender and tokens must not be delegated yet.
    /// @param _tokenIds The array of token ids that will be delegated to the current delegatee of `sender`.
    function delegate(
        uint256[] memory _tokenIds
    ) public virtual whenNotPaused auth(DELEGATION_TOKEN_ROLE) {
        address sender = _msgSender();
        address delegatee = delegates(sender);

        if (delegatee == address(0)) {
            revert DelegateeNotSet();
        }

        if (_tokenIds.length == 0) {
            revert TokenListEmpty();
        }

        _delegate(sender, delegatee, _tokenIds, true);
    }

    /// @dev Undelegates currently delegated tokens from the current delegatee
    ///      and delegates all owned tokens by the sender to the new delegatee.
    /// @param _delegatee The new delegatee address.
    function delegate(address _delegatee) public virtual whenNotPaused {
        address sender = _msgSender();
        address currentDelegatee = delegates(sender);

        uint256[] memory tokenIds = VotingEscrow(escrow).ownedTokens(sender);
        uint256 ownedTokenLength = tokenIds.length;

        if (currentDelegatee != address(0) && ownedTokenLength != 0) {
            uint256[] memory delegatedTokenIds = getDelegatedTokens(tokenIds);
            if (delegatedTokenIds.length != 0) {
                _undelegate(sender, currentDelegatee, delegatedTokenIds, false);
            }
        }

        delegatees_[sender] = _delegatee;

        if (!autoDelegationDisabled(sender) && _delegatee != address(0) && ownedTokenLength != 0) {
            _delegate(sender, _delegatee, tokenIds, false);
        }

        emit DelegateChanged(sender, currentDelegatee, _delegatee);
    }

    /// @dev Note that the token ids must be currently delegated and must be owned/approved to the sender.
    /// @param _tokenIds The array of token ids that will be undelegated from the current delegatee.
    function undelegate(
        uint256[] memory _tokenIds
    ) public virtual whenNotPaused auth(DELEGATION_TOKEN_ROLE) {
        address sender = _msgSender();
        address delegatee = delegates(sender);

        if (delegatee == address(0)) {
            revert DelegateeNotSet();
        }

        if (_tokenIds.length == 0) {
            revert TokenListEmpty();
        }

        _undelegate(sender, delegatee, _tokenIds, true);
    }

    /// @notice private helper function to delegate token ids to the `_delegatee`.
    /// @dev It updates checkpoints, sets token delegation to true and
    ///      updates voting power on the address gauge voter.
    /// @param _sender The address that owns `_tokenIds` and delegates.
    /// @param _delegatee The new delegatee address to which `_tokenIds` will be delegated.
    /// @param _tokenIds The array of token ids. Note that it's caller's responsibility to not
    ///                  call this function for empty list of `_tokenIds`.
    /// @param _validate The boolean flag of whether to validate that token ids are owned by the `_sender` or not.
    ///                  In some cases, validation is not needed as caller already knows that there's no need.
    function _delegate(
        address _sender,
        address _delegatee,
        uint256[] memory _tokenIds,
        bool _validate
    ) internal virtual {
        (int256 totalBias, int256 totalSlope) = (0, 0);

        for (uint256 i = 0; i < _tokenIds.length; i++) {
            uint256 tokenId = _tokenIds[i];

            if (_validate) {
                if (!IVotingEscrow(escrow).isApprovedOrOwner(_sender, tokenId)) {
                    revert NotApprovedOrOwner();
                }

                if (tokenIsDelegated(tokenId)) {
                    revert TokenAlreadyDelegated(tokenId);
                }
            }

            // Ensure that voting power is greater than 0.
            // This can not be figured out with only `locked` data, as
            // token might exist, but might not be warm.
            if (IVotingEscrow(escrow).votingPower(tokenId) == 0) {
                revert VotingPowerZero(tokenId);
            }

            _setDelegated(tokenId, true);

            IVotingEscrow.LockedBalance memory locked = IVotingEscrow(escrow).locked(tokenId);
            (int256 bias, int256 slope) = _getBiasAndSlope(_delegatee, locked, _positive);
            totalBias += bias;
            totalSlope += slope;
        }

        numberOfDelegatedTokens[_sender] += _tokenIds.length;
        _checkpoint(totalBias, totalSlope, _delegatee);
        IVotingEscrow(escrow).updateVotingPower(_sender, _delegatee);
        emit TokensDelegated(_sender, _delegatee, _tokenIds);
    }

    /// @notice private helper function to undelegate token ids to the `_delegatee`.
    /// @dev It updates checkpoints, sets token delegation to false and
    ///      updates voting power on the address gauge voter.
    /// @param _sender The address that owns `_tokenIds` and undelegates.
    /// @param _delegatee The delegatee address from which `_tokenIds` will be undelegated.
    /// @param _tokenIds The array of token ids. Note that it's caller's responsibility to not
    ///                  call this function for empty list of `_tokenIds`.
    /// @param _validate The boolean flag of whether to validate that token ids are owned by the `_sender` or not.
    ///                  In some cases, validation is not needed as caller already knows that there's no need.
    function _undelegate(
        address _sender,
        address _delegatee,
        uint256[] memory _tokenIds,
        bool _validate
    ) internal virtual {
        (int256 totalBias, int256 totalSlope) = (0, 0);

        for (uint256 i = 0; i < _tokenIds.length; i++) {
            uint256 tokenId = _tokenIds[i];

            if (_validate) {
                if (!IVotingEscrow(escrow).isApprovedOrOwner(_sender, tokenId)) {
                    revert NotApprovedOrOwner();
                }

                if (!tokenIsDelegated(tokenId)) {
                    revert TokenNotDelegated(tokenId);
                }
            }

            _setDelegated(tokenId, false);

            IVotingEscrow.LockedBalance memory locked = IVotingEscrow(escrow).locked(tokenId);
            (int256 bias, int256 slope) = _getBiasAndSlope(_delegatee, locked, _negative);

            totalBias += bias;
            totalSlope += slope;
        }

        numberOfDelegatedTokens[_sender] -= _tokenIds.length;
        _checkpoint(totalBias, totalSlope, _delegatee);
        IVotingEscrow(escrow).updateVotingPower(_sender, _delegatee);

        emit TokensUndelegated(_sender, _delegatee, _tokenIds);
    }

    /// @notice It returns which tokens are currently delegated from the list of `_tokenIds`.
    function getDelegatedTokens(
        uint256[] memory _tokenIds
    ) public view virtual returns (uint256[] memory) {
        uint256[] memory delegatedTokenIds = new uint256[](_tokenIds.length);
        uint256 count;

        for (uint256 i = 0; i < _tokenIds.length; ++i) {
            if (tokenIsDelegated(_tokenIds[i])) {
                delegatedTokenIds[count++] = _tokenIds[i];
            }
        }

        // Trim to size
        assembly {
            mstore(delegatedTokenIds, count)
        }

        return delegatedTokenIds;
    }

    /// @notice Whether an `account` has disabled auto delegation or not.
    /// @param _account The address on which auto delegation is checked for.
    /// @return True if auto delegation is disabled, otherwise false.
    function autoDelegationDisabled(address _account) public view virtual returns (bool) {
        return autoDelegationDisabled_[_account];
    }

    /*//////////////////////////////////////////////////////////////
                        IERC6372 Functions
    //////////////////////////////////////////////////////////////*/

    /// @inheritdoc IERC6372
    function clock() external view returns (uint48) {
        return uint48(block.timestamp);
    }

    /// @inheritdoc IERC6372
    function CLOCK_MODE() external pure returns (string memory) {
        return "mode=timestamp";
    }

    /*//////////////////////////////////////////////////////////////
                        Checkpoint Functions
    //////////////////////////////////////////////////////////////*/

    function checkpointTransition(
        address _delegatee,
        uint256 _transitionCount
    ) external whenNotPaused {
        _checkpoint(0, 0, _delegatee, _transitionCount);
    }

    function _checkpoint(
        int256 _totalBias,
        int256 _totalSlope,
        address _delegatee
    ) internal override {
        _checkpoint(_totalBias, _totalSlope, _delegatee, 255);
    }

    function _checkpoint(
        int256 _totalBias,
        int256 _totalSlope,
        address _delegatee,
        uint256 _transitionCount
    ) internal override {
        if(_transitionCount == 0) revert ZeroTransition();
        
        GlobalPoint memory lastPoint = GlobalPoint({
            bias: 0,
            slope: 0,
            writtenTs: uint48(block.timestamp)
        });

        uint256 latestPointIndex_ = latestPointIndex[_delegatee];
        if (latestPointIndex_ > 0) {
            lastPoint = pointHistory[_delegatee][latestPointIndex_];
        }

        // Get slope changes for the delegatee
        mapping(uint256 => int256) storage slopeChanges_ = slopeChanges[_delegatee];

        uint256 expectedWrittenTs;

        {
            uint256 checkpointInterval = IClock(escrowClock).checkpointInterval();
            uint256 lastPointCheckpoint = lastPoint.writtenTs;
            uint256 t_i = (lastPointCheckpoint / checkpointInterval) * checkpointInterval;

            // Since `_checkpoint` can be called manually due to transition,
            // the global point's writtenTs shouldn't be block.timestamp
            // by default, but whatever the transition's max week is.
            expectedWrittenTs = t_i + _transitionCount * checkpointInterval;
            if (expectedWrittenTs > block.timestamp) {
                expectedWrittenTs = block.timestamp;
            }

            for (uint256 i = 0; i < _transitionCount; ++i) {
                t_i += checkpointInterval;
                int256 dSlope;

                if (t_i > expectedWrittenTs) {
                    t_i = expectedWrittenTs;
                } else {
                    dSlope = slopeChanges_[t_i];
                }

                lastPoint.bias += lastPoint.slope * int256(t_i - lastPointCheckpoint);
                lastPoint.slope -= dSlope;

                if (lastPoint.slope < 0) lastPoint.slope = 0;
                if (lastPoint.bias < 0) lastPoint.bias = 0;

                lastPointCheckpoint = t_i;

                if (t_i == expectedWrittenTs) {
                    break;
                }
            }
        }

        // totalBias and totalSlope can be negative, in which case
        // it will subtract instead of adding.
        lastPoint.bias += _totalBias;
        lastPoint.slope += _totalSlope;
        lastPoint.writtenTs = uint48(expectedWrittenTs);

        if (lastPoint.slope < 0) lastPoint.slope = 0;
        if (lastPoint.bias < 0) lastPoint.bias = 0;

        latestPointIndex[_delegatee] = ++latestPointIndex_;
        pointHistory[_delegatee][latestPointIndex_] = lastPoint;
    }

    /// @notice Proxies a call to the ERC721 contract
    /// @dev Useful for calling contracts looking to validate if the contract is token-like
    function balanceOf(address _account) public view virtual returns (uint256) {
        address lockNFT = IVotingEscrow(escrow).lockNFT();
        if (lockNFT == address(0)) return 0;

        return IERC721EMB(lockNFT).balanceOf(_account);
    }

    /*//////////////////////////////////////////////////////////////
                      IVotes Function
    //////////////////////////////////////////////////////////////*/

    /// @notice Returns the current amount of votes that `account` has.
    function getVotes(address _account) external view returns (uint256) {
        return _delegateBalanceAt(_account, block.timestamp);
    }

    /// @notice Returns the amount of votes that `account` had at a specific moment in the past.
    function getPastVotes(address _account, uint256 _timestamp) public view returns (uint256) {
        return _delegateBalanceAt(_account, _timestamp);
    }

    /// @notice Returns the total supply of votes available at a specific moment in the past.
    /// @dev 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 _timestamp) external view returns (uint256) {
        return IVotingEscrow(escrow).totalVotingPowerAt(_timestamp);
    }

    /// @inheritdoc IEscrowIVotesAdapter
    function delegates(address _account) public view virtual override returns (address) {
        return delegatees_[_account];
    }

    /// @dev Not implemented.
    function delegateBySig(address, uint256, uint256, uint8, bytes32, bytes32) public virtual {
        revert DelegateBySigNotSupported();
    }

    /*//////////////////////////////////////////////////////////////
                      Binary Search Functions
    //////////////////////////////////////////////////////////////*/

    function getPastDelegatePointIndex(
        address _delegatee,
        uint256 _timestamp
    ) internal view returns (uint256) {
        uint256 latestPointIndex_ = latestPointIndex[_delegatee];
        if (latestPointIndex_ == 0) return 0;

        mapping(uint256 => GlobalPoint) storage pointHistory_ = pointHistory[_delegatee];

        // First check most recent balance
        if (pointHistory_[latestPointIndex_].writtenTs <= _timestamp) return (latestPointIndex_);

        // Next check implicit zero balance
        if (pointHistory_[1].writtenTs > _timestamp) return 0;

        uint256 lower = 0;
        uint256 upper = latestPointIndex_;
        while (upper > lower) {
            uint256 center = upper - (upper - lower) / 2; // ceil, avoiding overflow
            GlobalPoint storage delegatePoint = pointHistory_[center];
            if (delegatePoint.writtenTs == _timestamp) {
                return center;
            } else if (delegatePoint.writtenTs < _timestamp) {
                lower = center;
            } else {
                upper = center - 1;
            }
        }
        return lower;
    }

    /// @notice Calculate total voting power at some point in the past
    /// @param _timestamp Time to calculate the total voting power at
    /// @return Total voting power at that time
    function _delegateBalanceAt(
        address _delegatee,
        uint256 _timestamp
    ) internal view returns (uint256) {
        uint256 index = getPastDelegatePointIndex(_delegatee, _timestamp);
        // epoch 0 is an empty point
        if (index == 0) return 0;
        GlobalPoint memory point = pointHistory[_delegatee][index];

        int256 bias = point.bias;
        int256 slope = point.slope;
        uint256 ts = point.writtenTs;

        mapping(uint256 => int256) storage slopeChanges_ = slopeChanges[_delegatee];

        uint256 checkpointInterval = IClock(escrowClock).checkpointInterval();

        uint256 t_i = (ts / checkpointInterval) * checkpointInterval;

        for (uint256 i = 0; i < 255; ++i) {
            t_i += checkpointInterval;
            int256 dSlope = 0;
            if (t_i > _timestamp) {
                t_i = _timestamp;
            } else {
                dSlope = slopeChanges_[t_i];
            }
            bias += slope * int256(t_i - ts);

            if (t_i == _timestamp) {
                break;
            }
            slope -= dSlope;
            ts = t_i;
        }

        if (bias < 0) bias = 0;

        return uint256(SignedFixedPointMath.fromFP(bias));
    }

    /*//////////////////////////////////////////////////////////////
                        Private Helper Functions
    //////////////////////////////////////////////////////////////*/

    /// @dev Note that this function also updates slopeChanges.
    function _getBiasAndSlope(
        address _delegatee,
        IVotingEscrow.LockedBalance memory _locked,
        function(int256) view returns (int256) op
    ) internal override returns (int256, int256) {
        uint256 elapsed = block.timestamp - _locked.start;
        elapsed = elapsed > maxTime ? maxTime : elapsed;

        int256 amount = uint256(_locked.amount).toInt256();

        int256 slope = amount * SHARED_LINEAR_COEFFICIENT;
        int256 bias = slope *
            int256(elapsed) +
            amount *
            SHARED_CONSTANT_COEFFICIENT;

        if (bias < 0) bias = 0;

        if (elapsed < maxTime) {
            slope = op(slope);
            slopeChanges[_delegatee][_locked.start + maxTime] += slope;
        } else {
            slope = 0;
        }

        return (op(bias), slope);
    }

    /// @notice Returns the address of the implementation contract in the [proxy storage slot](https://eips.ethereum.org/EIPS/eip-1967) slot the [UUPS proxy](https://eips.ethereum.org/EIPS/eip-1822) is pointing to.
    /// @return The address of the implementation contract.
    function implementation() public view returns (address) {
        return _getImplementation();
    }

    /// @notice Internal method authorizing the upgrade of the contract via the [upgradeability mechanism for UUPS proxies](https://docs.openzeppelin.com/contracts/4.x/api/proxy#UUPSUpgradeable) (see [ERC-1822](https://eips.ethereum.org/EIPS/eip-1822)).
    function _authorizeUpgrade(address) internal virtual override auth(DELEGATION_ADMIN_ROLE) {}

    /// @dev Reserved storage space to allow for layout changes in the future.
    uint256[43] private __gap;
}
"
    },
    "lib/ve-governance/lib/openzeppelin-contracts-upgradeable/contracts/governance/utils/IVotesUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (governance/utils/IVotes.sol)
pragma solidity ^0.8.0;

/**
 * @dev Common interface for {ERC20Votes}, {ERC721Votes}, and other {Votes}-enabled contracts.
 *
 * _Available since v4.5._
 */
interface IVotesUpgradeable {
    /**
     * @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 a delegate's number of votes.
     */
    event DelegateVotesChanged(address indexed delegate, uint256 previousBalance, uint256 newBalance);

    /**
     * @dev Returns the current amount of votes that `account` has.
     */
    function getVotes(address account) external view returns (uint256);

    /**
     * @dev Returns the amount of votes that `account` had at a specific moment in the past. If the `clock()` is
     * configured to use block numbers, this will return the value at the end of the corresponding block.
     */
    function getPastVotes(address account, 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 at 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 `account` has chosen.
     */
    function delegates(address account) external view returns (address);

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

    /**
     * @dev Delegates votes from signer to `delegatee`.
     */
    function delegateBySig(address delegatee, uint256 nonce, uint256 expiry, uint8 v, bytes32 r, bytes32 s) external;
}
"
    },
    "lib/ve-governance/lib/openzeppelin-contracts-upgradeable/contracts/utils/math/SafeCastUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SafeCast.sol)
// This file was procedurally generated from scripts/generate/templates/SafeCast.js.

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 SafeCastUpgradeable {
    /**
     * @dev Returns the downcasted uint248 from uint256, reverting on
     * overflow (when the input is greater than largest uint248).
     *
     * Counterpart to Solidity's `uint248` operator.
     *
     * Requirements:
     *
     * - input must fit into 248 bits
     *
     * _Available since v4.7._
     */
    function toUint248(uint256 value) internal pure returns (uint248) {
        require(value <= type(uint248).max, "SafeCast: value doesn't fit in 248 bits");
        return uint248(value);
    }

    /**
     * @dev Returns the downcasted uint240 from uint256, reverting on
     * overflow (when the input is greater than largest uint240).
     *
     * Counterpart to Solidity's `uint240` operator.
     *
     * Requirements:
     *
     * - input must fit into 240 bits
     *
     * _Available since v4.7._
     */
    function toUint240(uint256 value) internal pure returns (uint240) {
        require(value <= type(uint240).max, "SafeCast: value doesn't fit in 240 bits");
        return uint240(value);
    }

    /**
     * @dev Returns the downcasted uint232 from uint256, reverting on
     * overflow (when the input is greater than largest uint232).
     *
     * Counterpart to Solidity's `uint232` operator.
     *
     * Requirements:
     *
     * - input must fit into 232 bits
     *
     * _Available since v4.7._
     */
    function toUint232(uint256 value) internal pure returns (uint232) {
        require(value <= type(uint232).max, "SafeCast: value doesn't fit in 232 bits");
        return uint232(value);
    }

    /**
     * @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
     *
     * _Available since v4.2._
     */
    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 uint216 from uint256, reverting on
     * overflow (when the input is greater than largest uint216).
     *
     * Counterpart to Solidity's `uint216` operator.
     *
     * Requirements:
     *
     * - input must fit into 216 bits
     *
     * _Available since v4.7._
     */
    function toUint216(uint256 value) internal pure returns (uint216) {
        require(value <= type(uint216).max, "SafeCast: value doesn't fit in 216 bits");
        return uint216(value);
    }

    /**
     * @dev Returns the downcasted uint208 from uint256, reverting on
     * overflow (when the input is greater than largest uint208).
     *
     * Counterpart to Solidity's `uint208` operator.
     *
     * Requirements:
     *
     * - input must fit into 208 bits
     *
     * _Available since v4.7._
     */
    function toUint208(uint256 value) internal pure returns (uint208) {
        require(value <= type(uint208).max, "SafeCast: value doesn't fit in 208 bits");
        return uint208(value);
    }

    /**
     * @dev Returns the downcasted uint200 from uint256, reverting on
     * overflow (when the input is greater than largest uint200).
     *
     * Counterpart to Solidity's `uint200` operator.
     *
     * Requirements:
     *
     * - input must fit into 200 bits
     *
     * _Available since v4.7._
     */
    function toUint200(uint256 value) internal pure returns (uint200) {
        require(value <= type(uint200).max, "SafeCast: value doesn't fit in 200 bits");
        return uint200(value);
    }

    /**
     * @dev Returns the downcasted uint192 from uint256, reverting on
     * overflow (when the input is greater than largest uint192).
     *
     * Counterpart to Solidity's `uint192` operator.
     *
     * Requirements:
     *
     * - input must fit into 192 bits
     *
     * _Available since v4.7._
     */
    function toUint192(uint256 value) internal pure returns (uint192) {
        require(value <= type(uint192).max, "SafeCast: value doesn't fit in 192 bits");
        return uint192(value);
    }

    /**
     * @dev Returns the downcasted uint184 from uint256, reverting on
     * overflow (when the input is greater than largest uint184).
     *
     * Counterpart to Solidity's `uint184` operator.
     *
     * Requirements:
     *
     * - input must fit into 184 bits
     *
     * _Available since v4.7._
     */
    function toUint184(uint256 value) internal pure returns (uint184) {
        require(value <= type(uint184).max, "SafeCast: value doesn't fit in 184 bits");
        return uint184(value);
    }

    /**
     * @dev Returns the downcasted uint176 from uint256, reverting on
     * overflow (when the input is greater than largest uint176).
     *
     * Counterpart to Solidity's `uint176` operator.
     *
     * Requirements:
     *
     * - input must fit into 176 bits
     *
     * _Available since v4.7._
     */
    function toUint176(uint256 value) internal pure returns (uint176) {
        require(value <= type(uint176).max, "SafeCast: value doesn't fit in 176 bits");
        return uint176(value);
    }

    /**
     * @dev Returns the downcasted uint168 from uint256, reverting on
     * overflow (when the input is greater than largest uint168).
     *
     * Counterpart to Solidity's `uint168` operator.
     *
     * Requirements:
     *
     * - input must fit into 168 bits
     *
     * _Available since v4.7._
     */
    function toUint168(uint256 value) internal pure returns (uint168) {
        require(value <= type(uint168).max, "SafeCast: value doesn't fit in 168 bits");
        return uint168(value);
    }

    /**
     * @dev Returns the downcasted uint160 from uint256, reverting on
     * overflow (when the input is greater than largest uint160).
     *
     * Counterpart to Solidity's `uint160` operator.
     *
     * Requirements:
     *
     * - input must fit into 160 bits
     *
     * _Available since v4.7._
     */
    function toUint160(uint256 value) internal pure returns (uint160) {
        require(value <= type(uint160).max, "SafeCast: value doesn't fit in 160 bits");
        return uint160(value);
    }

    /**
     * @dev Returns the downcasted uint152 from uint256, reverting on
     * overflow (when the input is greater than largest uint152).
     *
     * Counterpart to Solidity's `uint152` operator.
     *
     * Requirements:
     *
     * - input must fit into 152 bits
     *
     * _Available since v4.7._
     */
    function toUint152(uint256 value) internal pure returns (uint152) {
        require(value <= type(uint152).max, "SafeCast: value doesn't fit in 152 bits");
        return uint152(value);
    }

    /**
     * @dev Returns the downcasted uint144 from uint256, reverting on
     * overflow (when the input is greater than largest uint144).
     *
     * Counterpart to Solidity's `uint144` operator.
     *
     * Requirements:
     *
     * - input must fit into 144 bits
     *
     * _Available since v4.7._
     */
    function toUint144(uint256 value) internal pure returns (uint144) {
        require(value <= type(uint144).max, "SafeCast: value doesn't fit in 144 bits");
        return uint144(value);
    }

    /**
     * @dev Returns the downcasted uint136 from uint256, reverting on
     * overflow (when the input is greater than largest uint136).
     *
     * Counterpart to Solidity's `uint136` operator.
     *
     * Requirements:
     *
     * - input must fit into 136 bits
     *
     * _Available since v4.7._
     */
    function toUint136(uint256 value) internal pure returns (uint136) {
        require(value <= type(uint136).max, "SafeCast: value doesn't fit in 136 bits");
        return uint136(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
     *
     * _Available since v2.5._
     */
    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 uint120 from uint256, reverting on
     * overflow (when the input is greater than largest uint120).
     *
     * Counterpart to Solidity's `uint120` operator.
     *
     * Requirements:
     *
     * - input must fit into 120 bits
     *
     * _Available since v4.7._
     */
    function toUint120(uint256 value) internal pure returns (uint120) {
        require(value <= type(uint120).max, "SafeCast: value doesn't fit in 120 bits");
        return uint120(value);
    }

    /**
     * @dev Returns the downcasted uint112 from uint256, reverting on
     * overflow (when the input is greater than largest uint112).
     *
     * Counterpart to Solidity's `uint112` operator.
     *
     * Requirements:
     *
     * - input must fit into 112 bits
     *
     * _Available since v4.7._
     */
    function toUint112(uint256 value) internal pure returns (uint112) {
        require(value <= type(uint112).max, "SafeCast: value doesn't fit in 112 bits");
        return uint112(value);
    }

    /**
     * @dev Returns the downcasted uint104 from uint256, reverting on
     * overflow (when the input is greater than largest uint104).
     *
     * Counterpart to Solidity's `uint104` operator.
     *
     * Requirements:
     *
     * - input must fit into 104 bits
     *
     * _Available since v4.7._
     */
    function toUint104(uint256 value) internal pure returns (uint104) {
        require(value <= type(uint104).max, "SafeCast: value doesn't fit in 104 bits");
        return uint104(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
     *
     * _Available since v4.2._
     */
    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 uint88 from uint256, reverting on
     * overflow (when the input is greater than largest uint88).
     *
     * Counterpart to Solidity's `uint88` operator.
     *
     * Requirements:
     *
     * - input must fit into 88 bits
     *
     * _Available since v4.7._
     */
    function toUint88(uint256 value) internal pure returns (uint88) {
        require(value <= type(uint88).max, "SafeCast: value doesn't fit in 88 bits");
        return uint88(value);
    }

    /**
     * @dev Returns the downcasted uint80 from uint256, reverting on
     * overflow (when the input is greater than largest uint80).
     *
     * Counterpart to Solidity's `uint80` operator.
     *
     * Requirements:
     *
     * - input must fit into 80 bits
     *
     * _Available since v4.7._
     */
    function toUint80(uint256 value) internal pure returns (uint80) {
        require(value <= type(uint80).max, "SafeCast: value doesn't fit in 80 bits");
        return uint80(value);
    }

    /**
     * @dev Returns the downcasted uint72 from uint256, reverting on
     * overflow (when the input is greater than largest uint72).
     *
     * Counterpart to Solidity's `uint72` operator.
     *
     * Requirements:
     *
     * - input must fit into 72 bits
     *
     * _Available since v4.7._
     */
    function toUint72(uint256 value) internal pure returns (uint72) {
        require(value <= type(uint72).max, "SafeCast: value doesn't fit in 72 bits");
        return uint72(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
     *
     * _Available since v2.5._
     */
    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 uint56 from uint256, reverting on
     * overflow (when the input is greater than largest uint56).
     *
     * Counterpart to Solidity's `uint56` operator.
     *
     * Requirements:
     *
     * - input must fit into 56 bits
     *
     * _Available since v4.7._
     */
    function toUint56(uint256 value) internal pure returns (uint56) {
        require(value <= type(uint56).max, "SafeCast: value doesn't fit in 56 bits");
        return uint56(value);
    }

    /**
     * @dev Returns the downcasted uint48 from uint256, reverting on
     * overflow (when the input is greater than largest uint48).
     *
     * Counterpart to Solidity's `uint48` operator.
     *
     * Requirements:
     *
     * - input must fit into 48 bits
     *
     * _Available since v4.7._
     */
    function toUint48(uint256 value) internal pure returns (uint48) {
        require(value <= type(uint48).max, "SafeCast: value doesn't fit in 48 bits");
        return uint48(value);
    }

    /**
     * @dev Returns the downcasted uint40 from uint256, reverting on
     * overflow (when the input is greater than largest uint40).
     *
     * Counterpart to Solidity's `uint40` operator.
     *
     * Requirements:
     *
     * - input must fit into 40 bits
     *
     * _Available since v4.7._
     */
    function toUint40(uint256 value) internal pure returns (uint40) {
        require(value <= type(uint40).max, "SafeCast: value doesn't fit in 40 bits");
        return uint40(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
     *
     * _Available since v2.5._
     */
    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 uint24 from uint256, reverting on
     * overflow (when the input is greater than largest uint24).
     *
     * Counterpart to Solidity's `uint24` operator.
     *
     * Requirements:
     *
     * - input must fit into 24 bits
     *
     * _Available since v4.7._
     */
    function toUint24(uint256 value) internal pure returns (uint24) {
        require(value <= type(uint24).max, "SafeCast: value doesn't fit in 24 bits");
        return uint24(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
     *
     * _Available since v2.5._
     */
    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
     *
     * _Available since v2.5._
     */
    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.
     *
     * _Available since v3.0._
     */
    function toUint256(int256 value) internal pure returns (uint256) {
        require(value >= 0, "SafeCast: value must be positive");
        return uint256(value);
    }

    /**
     * @dev Returns the downcasted int248 from int256, reverting on
     * overflow (when the input is less than smallest int248 or
     * greater than largest int248).
     *
     * Counterpart to Solidity's `int248` operator.
     *
     * Requirements:
     *
     * - input must fit into 248 bits
     *
     * _Available since v4.7._
     */
    function toInt248(int256 value) internal pure returns (int248 downcasted) {
        downcasted = int248(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 248 bits");
    }

    /**
     * @dev Returns the downcasted int240 from int256, reverting on
     * overflow (when the input is less than smallest int240 or
     * greater than largest int240).
     *
     * Counterpart to Solidity's `int240` operator.
     *
     * Requirements:
     *
     * - input must fit into 240 bits
     *
     * _Available since v4.7._
     */
    function toInt240(int256 value) internal pure returns (int240 downcasted) {
        downcasted = int240(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 240 bits");
    }

    /**
     * @dev Returns the downcasted int232 from int256, reverting on
     * overflow (when the input is less than smallest int232 or
     * greater than largest int232).
     *
     * Counterpart to Solidity's `int232` operator.
     *
     * Requirements:
     *
     * - input must fit into 232 bits
     *
     * _Available since v4.7._
     */
    function toInt232(int256 value) internal pure returns (int232 downcasted) {
        downcasted = int232(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 232 bits");
    }

    /**
     * @dev Returns the downcasted int224 from int256, reverting on
     * overflow (when the input is less than smallest int224 or
     * greater than largest int224).
     *
     * Counterpart to Solidity's `int224` operator.
     *
     * Requirements:
     *
     * - input must fit into 224 bits
     *
     * _Available since v4.7._
     */
    function toInt224(int256 value) internal pure returns (int224 downcasted) {
        downcasted = int224(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 224 bits");
    }

    /**
     * @dev Returns the downcasted int216 from int256, reverting on
     * overflow (when the input is less than smallest int216 or
     * greater than largest int216).
     *
     * Counterpart to Solidity's `int216` operator.
     *
     * Requirements:
     *
     * - input must fit into 216 bits
     *
     * _Available since v4.7._
     */
    function toInt216(int256 value) internal pure returns (int216 downcasted) {
        downcasted = int216(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 216 bits");
    }

    /**
     * @dev Returns the downcasted int208 from int256, reverting on
     * overflow (when the input is less than smallest int208 or
     * greater than largest int208).
     *
     * Counterpart to Solidity's `int208` operator.
     *
     * Requirements:
     *
     * - input must fit into 208 bits
     *
     * _Available since v4.7._
     */
    function toInt208(int256 value) internal pure returns (int208 downcasted) {
        downcasted = int208(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 208 bits");
    }

    /**
     * @dev Returns the downcasted int200 from int256, reverting on
     * overflow (when the input is less than smallest int200 or
     * greater than largest int200).
     *
     * Counterpart to Solidity's `int200` operator.
     *
     * Requirements:
     *
     * - input must fit into 200 bits
     *
     * _Available since v4.7._
     */
    function toInt200(int256 value) internal pure returns (int200 downcasted) {
        downcasted = int200(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 200 bits");
    }

    /**
     * @dev Returns the downcasted int192 from int256, reverting on
     * overflow (when the input is less than smallest int192 or
     * greater than largest int192).
     *
     * Counterpart to Solidity's `int192` operator.
     *
     * Requirements:
     *
     * - input must fit into 192 bits
     *
     * _Available since v4.7._
     */
    function toInt192(int256 value) internal pure returns (int192 downcasted) {
        downcasted = int192(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 192 bits");
    }

    /**
     * @dev Returns the downcasted int184 from int256, reverting on
     * overflow (when the input is less than smallest int184 or
     * greater than largest int184).
     *
     * Counterpart to Solidity's `int184` operator.
     *
     * Requirements:
     *
     * - input must fit into 184 bits
     *
     * _Available since v4.7._
     */
    function toInt184(int256 value) internal pure returns (int184 downcasted) {
        downcasted = int184(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 184 bits");
    }

    /**
     * @dev Returns the downcasted int176 from int256, reverting on
     * overflow (when the input is less than smallest int176 or
     * greater than largest int176).
     *
     * Counterpart to Solidity's `int176` operator.
     *
     * Requirements:
     *
     * - input must fit into 176 bits
     *
     * _Available since v4.7._
     */
    function toInt176(int256 value) internal pure returns (int176 downcasted) {
        downcasted = int176(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 176 bits");
    }

    /**
     * @dev Returns the downcasted int168 from int256, reverting on
     * overflow (when the input is less than smallest int168 or
     * greater than largest int168).
     *
     * Counterpart to Solidity's `int168` operator.
     *
     * Requirements:
     *
     * - input must fit into 168 bits
     *
     * _Available since v4.7._
     */
    function toInt168(int256 value) internal pure returns (int168 downcasted) {
        downcasted = int168(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 168 bits");
    }

    /**
     * @dev Returns the downcasted int160 from int256, reverting on
     * overflow (when the input is less than smallest int160 or
     * greater than largest int160).
     *
     * Counterpart to Solidity's `int160` operator.
     *
     * Requirements:
     *
     * - input must fit into 160 bits
     *
     * _Available since v4.7._
     */
    function toInt160(int256 value) internal pure returns (int160 downcasted) {
        downcasted = int160(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 160 bits");
    }

    /**
     * @dev Returns the downcasted int152 from int256, reverting on
     * overflow (when the input is less than smallest int152 or
     * greater than largest int152).
     *
     * Counterpart to Solidity's `int152` operator.
     *
     * Requirements:
     *
     * - input must fit into 152 bits
     *
     * _Available since v4.7._
     */
    function toInt152(int256 value) internal pure returns (int152 downcasted) {
        downcasted = int152(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 152 bits");
    }

    /**
     * @dev Returns the downcasted int144 from int256, reverting on
     * overflow (when the input is less than smallest int144 or
     * greater than largest int144).
     *
     * Counterpart to Solidity's `int144` operator.
     *
     * Requirements:
     *
     * - input must fit into 144 bits
     *
     * _Available since v4.7._
     */
    function toInt144(int256 value) internal pure returns (int144 downcasted) {
        downcasted = int144(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 144 bits");
    }

    /**
     * @dev Returns the downcasted int136 from int256, reverting on
     * overflow (when the input is less than smallest int136 or
     * greater than largest int136).
     *
     * Counterpart to Solidity's `int136` operator.
     *
     * Requirements:
     *
     * - input must fit into 136 bits
     *
     * _Available since v4.7._
     */
    function toInt136(int256 value) internal pure returns (int136 downcasted) {
        downcasted = int136(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 136 bits");
    }

    /**
     * @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 downcasted) {
        downcasted = int128(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 128 bits");
    }

    /**
     * @dev Returns the downcasted int120 from int256, reverting on
     * overflow (when the input is less than smallest int120 or
     * greater than largest int120).
     *
     * Counterpart to Solidity's `int120` operator.
     *
     * Requirements:
     *
     * - input must fit into 120 bits
     *
     * _Available since v4.7._
     */
    function toInt120(int256 value) internal pure returns (int120 downcasted) {
        downcasted = int120(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 120 bits");
    }

    /**
     * @dev Returns the downcasted int112 from int256, reverting on
     * overflow (when the input is less than smallest int112 or
     * greater than largest int112).
     *
     * Counterpart to Solidity's `int112` operator.
     *
     * Requirements:
     *
     * - input must fit into 112 bits
     *
     * _Available since v4.7._
     */
    function toInt112(int256 value) internal pure returns (int112 downcasted) {
        downcasted = int112(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 112 bits");
    }

    /**
     * @dev Returns the downcasted int104 from int256, reverting on
     * overflow (when the input is less than smallest int104 or
     * greater than largest int104).
     *
     * Counterpart to Solidity's `int104` operator.
     *
     * Requirements:
     *
     * - input must fit into 104 bits
     *
     * _Available since v4.7._
     */
    function toInt104(int256 value) internal pure returns (int104 downcasted) {
        downcasted = int104(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 104 bits");
    }

    /**
     * @dev Returns the downcasted int96 from int256, reverting on
     * overflow (when the input is less than smallest int96 or
     * greater than largest int96).
     *
     * Counterpart to Solidity's `int96` operator.
     *
     * Requirements:
     *
     * - input must fit into 96 bits
     *
     * _Available since v4.7._
     */
    function toInt96(int256 value) internal pure returns (int96 downcasted) {
        downcasted = int96(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 96 bits");
    }

    /**
     * @dev Returns the downcasted int88 from int256, reverting on
     * overflow (when the input is less than smallest int88 or
     * greater than largest int88).
     *
     * Counterpart to Solidity's `int88` operator.
     *
     * Requirements:
     *
     * - input must fit into 88 bits
     *
     * _Available since v4.7._
     */
    function toInt88(int256 value) internal pure returns (int88 downcasted) {
        downcasted = int88(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 88 bits");
    }

    /**
     * @dev Returns the downcasted int80 from int256, reverting on
     * overflow (when the input is less than smallest int80 or
     * greater than largest int80).
     *
     * Counterpart to Solidity's `int80` operator.
     *
     * Requirements:
     *
     * - input must fit into 80 bits
     *
     * _Available since v4.7._
     */
    function toInt80(int256 value) internal pure returns (int80 downcasted) {
        downcasted = int80(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 80 bits");
    }

    /**
     * @dev Returns the downcasted int72 from int256, reverting on
     * overflow (when the input is less than smallest int72 or
     * greater than largest int72).
     *
     * Counterpart to Solidity's `int72` operator.
     *
     * Requirements:
     *
     * - input must fit into 72 bits
     *
     * _Available since v4.7._
     */
    function toInt72(int256 value) internal pure returns (int72 downcasted) {
        downcasted = int72(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 72 bits");
    }

    /**
     * @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 downcasted) {
        downcasted = int64(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 64 bits");
    }

    /**
     * @dev Returns the downcasted int56 from int256, reverting on
     * overflow (when the input is less than smallest int56 or
     * greater than largest int56).
     *
     * Counterpart to Solidity's `int56` operator.
     *
     * Requirements:
     *
     * - input must fit into 56 bits
     *
     * _Available since v4.7._
     */
    function toInt56(int256 value) internal pure returns (int56 downcasted) {
        downcasted = int56(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 56 bits");
    }

    /**
     * @dev Returns the downcasted int48 from int256, reverting on
     * overflow (when the input is less than smallest int48 or
     * greater than largest int48).
     *
     * Counterpart to Solidity's `int48` operator.
     *
     * Requirements:
     *
     * - input must fit into 48 bits
     *
     * _Available since v4.7._
     */
    function toInt48(int256 value) internal pure returns (int48 downcasted) {
        downcasted = int48(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 48 bits");
    }

    /**
     * @dev Returns the downcasted int40 from int256, reverting on
     * overflow (when the input is less than smallest int40 or
     * greater than largest int40).
     *
     * Counterpart to Solidity's `int40` operator.
     *
     * Requirements:
     *
     * - input must fit into 40 bits
     *
     * _Available since v4.7._
     */
    function toInt40(int256 value) internal pure returns (int40 downcasted) {
        downcasted = int40(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 40 bits");
    }

    /**
     * @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 downcasted) {
        downcasted = int32(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 32 bits");
    }

    /**
     * @dev Returns the downcasted int24 from int256, reverting on
     * overflow (when the input is less than smallest int24 or
     * greater than largest int24).
     *
     * Counterpart to Solidity's `int24` operator.
     *
     * Requirements:
     *
     * - input must fit into 24 bits
     *
     * _Available since v4.7._
     */
    function toInt24(int256 value) internal pure returns (int24 downcasted) {
        downcasted = int24(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 24 bits");
    }

    /**
     * @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 downcasted) {
        downcasted = int16(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 16 bits");
    }

    /**
     * @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 downcasted) {
        downcasted = int8(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 8 bits");
    }

    /**
     * @dev Converts an unsigned uint256 into a signed int256.
     *
     * Requirements:
     *
     * - input must be less than or equal to maxInt256.
     *
     * _Available since v3.0._
     */
    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);
    }
}
"
    },
    "lib/ve-governance/lib/openzeppelin-contracts-upgradeable/contracts/security/ReentrancyGuardUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;
import "../proxy/utils/Ini