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0x3A0fa8aac82aD94048098D6af6e8eB36c98816A1

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0x623d4A04...87C02fC0a at txn 0xaf827475137da640027e45d33a15dbcd17710f05159d48f7ca75f1aed88d3d3a

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	Transaction Hash	Method	Block		From		To
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Parent Transaction Hash	Block		From		To
0xaf827475137da640027e45d33a15dbcd17710f05159d48f7ca75f1aed88d3d3a	307784	2024-12-11 19:08:23	22 days ago	1733944103	CreateX		Contract Creation	0 S-

Contract Source Code Verified (Exact Match)

Contract Name:

RegistryFactory

Compiler Version

v0.8.18+commit.87f61d96

Optimization Enabled:

Yes with 200 runs

Other Settings:

default evmVersion

Contract Source Code (Solidity)

IDE

/**
 *Submitted for verification at SonicScan.org on 2024-12-11
*/

// SPDX-License-Identifier: GNU AGPLv3
pragma solidity >=0.8.18 ^0.8.0;

// lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol

// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

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

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

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

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

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

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

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

// lib/tokenized-strategy-periphery/src/utils/Governance.sol

contract Governance {
    /// @notice Emitted when the governance address is updated.
    event GovernanceTransferred(
        address indexed previousGovernance,
        address indexed newGovernance
    );

    modifier onlyGovernance() {
        _checkGovernance();
        _;
    }

    /// @notice Checks if the msg sender is the governance.
    function _checkGovernance() internal view virtual {
        require(governance == msg.sender, "!governance");
    }

    /// @notice Address that can set the default base fee and provider
    address public governance;

    constructor(address _governance) {
        governance = _governance;

        emit GovernanceTransferred(address(0), _governance);
    }

    /**
     * @notice Sets a new address as the governance of the contract.
     * @dev Throws if the caller is not current governance.
     * @param _newGovernance The new governance address.
     */
    function transferGovernance(
        address _newGovernance
    ) external virtual onlyGovernance {
        require(_newGovernance != address(0), "ZERO ADDRESS");
        address oldGovernance = governance;
        governance = _newGovernance;

        emit GovernanceTransferred(oldGovernance, _newGovernance);
    }
}

// lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol

// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

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

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

// lib/tokenized-strategy-periphery/src/utils/Governance2Step.sol

contract Governance2Step is Governance {
    /// @notice Emitted when the pending governance address is set.
    event UpdatePendingGovernance(address indexed newPendingGovernance);

    /// @notice Address that is set to take over governance.
    address public pendingGovernance;

    constructor(address _governance) Governance(_governance) {}

    /**
     * @notice Sets a new address as the `pendingGovernance` of the contract.
     * @dev Throws if the caller is not current governance.
     * @param _newGovernance The new governance address.
     */
    function transferGovernance(
        address _newGovernance
    ) external virtual override onlyGovernance {
        require(_newGovernance != address(0), "ZERO ADDRESS");
        pendingGovernance = _newGovernance;

        emit UpdatePendingGovernance(_newGovernance);
    }

    /**
     * @notice Allows the `pendingGovernance` to accept the role.
     */
    function acceptGovernance() external virtual {
        require(msg.sender == pendingGovernance, "!pending governance");

        emit GovernanceTransferred(governance, msg.sender);

        governance = msg.sender;
        pendingGovernance = address(0);
    }
}

// lib/openzeppelin-contracts/contracts/interfaces/IERC4626.sol

// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC4626.sol)

/**
 * @dev Interface of the ERC4626 "Tokenized Vault Standard", as defined in
 * https://eips.ethereum.org/EIPS/eip-4626[ERC-4626].
 *
 * _Available since v4.7._
 */
interface IERC4626 is IERC20, IERC20Metadata {
    event Deposit(address indexed sender, address indexed owner, uint256 assets, uint256 shares);

    event Withdraw(
        address indexed sender,
        address indexed receiver,
        address indexed owner,
        uint256 assets,
        uint256 shares
    );

    /**
     * @dev Returns the address of the underlying token used for the Vault for accounting, depositing, and withdrawing.
     *
     * - MUST be an ERC-20 token contract.
     * - MUST NOT revert.
     */
    function asset() external view returns (address assetTokenAddress);

    /**
     * @dev Returns the total amount of the underlying asset that is “managed” by Vault.
     *
     * - SHOULD include any compounding that occurs from yield.
     * - MUST be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT revert.
     */
    function totalAssets() external view returns (uint256 totalManagedAssets);

    /**
     * @dev Returns the amount of shares that the Vault would exchange for the amount of assets provided, in an ideal
     * scenario where all the conditions are met.
     *
     * - MUST NOT be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT show any variations depending on the caller.
     * - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.
     * - MUST NOT revert.
     *
     * NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the
     * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and
     * from.
     */
    function convertToShares(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Returns the amount of assets that the Vault would exchange for the amount of shares provided, in an ideal
     * scenario where all the conditions are met.
     *
     * - MUST NOT be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT show any variations depending on the caller.
     * - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.
     * - MUST NOT revert.
     *
     * NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the
     * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and
     * from.
     */
    function convertToAssets(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Returns the maximum amount of the underlying asset that can be deposited into the Vault for the receiver,
     * through a deposit call.
     *
     * - MUST return a limited value if receiver is subject to some deposit limit.
     * - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of assets that may be deposited.
     * - MUST NOT revert.
     */
    function maxDeposit(address receiver) external view returns (uint256 maxAssets);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their deposit at the current block, given
     * current on-chain conditions.
     *
     * - MUST return as close to and no more than the exact amount of Vault shares that would be minted in a deposit
     *   call in the same transaction. I.e. deposit should return the same or more shares as previewDeposit if called
     *   in the same transaction.
     * - MUST NOT account for deposit limits like those returned from maxDeposit and should always act as though the
     *   deposit would be accepted, regardless if the user has enough tokens approved, etc.
     * - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToShares and previewDeposit SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by depositing.
     */
    function previewDeposit(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Mints shares Vault shares to receiver by depositing exactly amount of underlying tokens.
     *
     * - MUST emit the Deposit event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   deposit execution, and are accounted for during deposit.
     * - MUST revert if all of assets cannot be deposited (due to deposit limit being reached, slippage, the user not
     *   approving enough underlying tokens to the Vault contract, etc).
     *
     * NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.
     */
    function deposit(uint256 assets, address receiver) external returns (uint256 shares);

    /**
     * @dev Returns the maximum amount of the Vault shares that can be minted for the receiver, through a mint call.
     * - MUST return a limited value if receiver is subject to some mint limit.
     * - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of shares that may be minted.
     * - MUST NOT revert.
     */
    function maxMint(address receiver) external view returns (uint256 maxShares);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their mint at the current block, given
     * current on-chain conditions.
     *
     * - MUST return as close to and no fewer than the exact amount of assets that would be deposited in a mint call
     *   in the same transaction. I.e. mint should return the same or fewer assets as previewMint if called in the
     *   same transaction.
     * - MUST NOT account for mint limits like those returned from maxMint and should always act as though the mint
     *   would be accepted, regardless if the user has enough tokens approved, etc.
     * - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToAssets and previewMint SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by minting.
     */
    function previewMint(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Mints exactly shares Vault shares to receiver by depositing amount of underlying tokens.
     *
     * - MUST emit the Deposit event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the mint
     *   execution, and are accounted for during mint.
     * - MUST revert if all of shares cannot be minted (due to deposit limit being reached, slippage, the user not
     *   approving enough underlying tokens to the Vault contract, etc).
     *
     * NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.
     */
    function mint(uint256 shares, address receiver) external returns (uint256 assets);

    /**
     * @dev Returns the maximum amount of the underlying asset that can be withdrawn from the owner balance in the
     * Vault, through a withdraw call.
     *
     * - MUST return a limited value if owner is subject to some withdrawal limit or timelock.
     * - MUST NOT revert.
     */
    function maxWithdraw(address owner) external view returns (uint256 maxAssets);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their withdrawal at the current block,
     * given current on-chain conditions.
     *
     * - MUST return as close to and no fewer than the exact amount of Vault shares that would be burned in a withdraw
     *   call in the same transaction. I.e. withdraw should return the same or fewer shares as previewWithdraw if
     *   called
     *   in the same transaction.
     * - MUST NOT account for withdrawal limits like those returned from maxWithdraw and should always act as though
     *   the withdrawal would be accepted, regardless if the user has enough shares, etc.
     * - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToShares and previewWithdraw SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by depositing.
     */
    function previewWithdraw(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Burns shares from owner and sends exactly assets of underlying tokens to receiver.
     *
     * - MUST emit the Withdraw event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   withdraw execution, and are accounted for during withdraw.
     * - MUST revert if all of assets cannot be withdrawn (due to withdrawal limit being reached, slippage, the owner
     *   not having enough shares, etc).
     *
     * Note that some implementations will require pre-requesting to the Vault before a withdrawal may be performed.
     * Those methods should be performed separately.
     */
    function withdraw(uint256 assets, address receiver, address owner) external returns (uint256 shares);

    /**
     * @dev Returns the maximum amount of Vault shares that can be redeemed from the owner balance in the Vault,
     * through a redeem call.
     *
     * - MUST return a limited value if owner is subject to some withdrawal limit or timelock.
     * - MUST return balanceOf(owner) if owner is not subject to any withdrawal limit or timelock.
     * - MUST NOT revert.
     */
    function maxRedeem(address owner) external view returns (uint256 maxShares);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their redeemption at the current block,
     * given current on-chain conditions.
     *
     * - MUST return as close to and no more than the exact amount of assets that would be withdrawn in a redeem call
     *   in the same transaction. I.e. redeem should return the same or more assets as previewRedeem if called in the
     *   same transaction.
     * - MUST NOT account for redemption limits like those returned from maxRedeem and should always act as though the
     *   redemption would be accepted, regardless if the user has enough shares, etc.
     * - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToAssets and previewRedeem SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by redeeming.
     */
    function previewRedeem(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Burns exactly shares from owner and sends assets of underlying tokens to receiver.
     *
     * - MUST emit the Withdraw event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   redeem execution, and are accounted for during redeem.
     * - MUST revert if all of shares cannot be redeemed (due to withdrawal limit being reached, slippage, the owner
     *   not having enough shares, etc).
     *
     * NOTE: some implementations will require pre-requesting to the Vault before a withdrawal may be performed.
     * Those methods should be performed separately.
     */
    function redeem(uint256 shares, address receiver, address owner) external returns (uint256 assets);
}

// src/registry/ReleaseRegistry.sol

interface IFactory {
    function apiVersion() external view returns (string memory);
}

interface ITokenizedStrategy {
    function apiVersion() external view returns (string memory);
}

/**
 * @title YearnV3 Release Registry
 * @author yearn.finance
 * @notice
 *  Used by Yearn Governance to track on chain all
 *  releases of the V3 vaults by API Version.
 */
contract ReleaseRegistry is Governance2Step {
    event NewRelease(
        uint256 indexed releaseId,
        address indexed factory,
        address indexed tokenizedStrategy,
        string apiVersion
    );

    string public constant name = "Yearn V3 Release Registry";

    // The total number of releases that have been deployed
    uint256 public numReleases;

    // Mapping of release id starting at 0 to the address
    // of the corresponding factory for that release.
    mapping(uint256 => address) public factories;

    // Mapping of release id starting at 0 to the address
    // of the corresponding Tokenized Strategy for that release.
    mapping(uint256 => address) public tokenizedStrategies;

    // Mapping of the API version for a specific release to the
    // place in the order it was released.
    mapping(string => uint256) public releaseTargets;

    constructor(address _governance) Governance2Step(_governance) {}

    /**
     * @notice Returns the latest factory.
     * @return The address of the factory for the latest release.
     */
    function latestFactory() external view virtual returns (address) {
        uint256 _numReleases = numReleases;
        if (_numReleases == 0) return address(0);
        return factories[numReleases - 1];
    }

    /**
     * @notice Returns the latest tokenized strategy.
     * @return The address of the tokenized strategy for the latest release.
     */
    function latestTokenizedStrategy() external view virtual returns (address) {
        uint256 _numReleases = numReleases;
        if (_numReleases == 0) return address(0);
        return tokenizedStrategies[numReleases - 1];
    }

    /**
     * @notice Returns the api version of the latest release.
     * @return The api version of the latest release.
     */
    function latestRelease() external view virtual returns (string memory) {
        uint256 _numReleases = numReleases;
        if (_numReleases == 0) return "";
        return IFactory(factories[numReleases - 1]).apiVersion();
    }

    /**
     * @notice Issue a new release using a deployed factory.
     * @dev Stores the factory address in `factories` and the release
     * target in `releaseTargets` with its associated API version.
     *
     *   Throws if caller isn't `governance`.
     *   Throws if the api version is the same as the previous release.
     *   Throws if the factory does not have the same api version as the tokenized strategy.
     *   Emits a `NewRelease` event.
     *
     * @param _factory The factory that will be used create new vaults.
     */
    function newRelease(
        address _factory,
        address _tokenizedStrategy
    ) external virtual onlyGovernance {
        // Check if the release is different from the current one
        uint256 releaseId = numReleases;

        string memory apiVersion = IFactory(_factory).apiVersion();
        string memory tokenizedStrategyApiVersion = ITokenizedStrategy(
            _tokenizedStrategy
        ).apiVersion();

        require(
            keccak256(bytes(apiVersion)) ==
                keccak256(bytes(tokenizedStrategyApiVersion)),
            "ReleaseRegistry: api version mismatch"
        );

        if (releaseId > 0) {
            // Make sure this isn't the same as the last one
            require(
                keccak256(
                    bytes(IFactory(factories[releaseId - 1]).apiVersion())
                ) != keccak256(bytes(apiVersion)),
                "ReleaseRegistry: same api version"
            );
        }

        // Update latest release.
        factories[releaseId] = _factory;
        tokenizedStrategies[releaseId] = _tokenizedStrategy;

        // Set the api to the target.
        releaseTargets[apiVersion] = releaseId;

        // Increase our number of releases.
        numReleases = releaseId + 1;

        // Log the release for external listeners
        emit NewRelease(releaseId, _factory, _tokenizedStrategy, apiVersion);
    }
}

// lib/yearn-vaults-v3/contracts/interfaces/IVault.sol

interface IVault is IERC4626 {
    // STRATEGY EVENTS
    event StrategyChanged(address indexed strategy, uint256 change_type);
    event StrategyReported(
        address indexed strategy,
        uint256 gain,
        uint256 loss,
        uint256 current_debt,
        uint256 protocol_fees,
        uint256 total_fees,
        uint256 total_refunds
    );
    // DEBT MANAGEMENT EVENTS
    event DebtUpdated(
        address indexed strategy,
        uint256 current_debt,
        uint256 new_debt
    );
    // ROLE UPDATES
    event RoleSet(address indexed account, uint256 role);
    event UpdateRoleManager(address indexed role_manager);

    event UpdateAccountant(address indexed accountant);
    event UpdateDefaultQueue(address[] new_default_queue);
    event UpdateUseDefaultQueue(bool use_default_queue);
    event UpdatedMaxDebtForStrategy(
        address indexed sender,
        address indexed strategy,
        uint256 new_debt
    );
    event UpdateAutoAllocate(bool auto_allocate);
    event UpdateDepositLimit(uint256 deposit_limit);
    event UpdateMinimumTotalIdle(uint256 minimum_total_idle);
    event UpdateProfitMaxUnlockTime(uint256 profit_max_unlock_time);
    event DebtPurchased(address indexed strategy, uint256 amount);
    event Shutdown();

    struct StrategyParams {
        uint256 activation;
        uint256 last_report;
        uint256 current_debt;
        uint256 max_debt;
    }

    function FACTORY() external view returns (uint256);

    function strategies(address) external view returns (StrategyParams memory);

    function default_queue(uint256) external view returns (address);

    function use_default_queue() external view returns (bool);

    function auto_allocate() external view returns (bool);

    function minimum_total_idle() external view returns (uint256);

    function deposit_limit() external view returns (uint256);

    function deposit_limit_module() external view returns (address);

    function withdraw_limit_module() external view returns (address);

    function accountant() external view returns (address);

    function roles(address) external view returns (uint256);

    function role_manager() external view returns (address);

    function future_role_manager() external view returns (address);

    function isShutdown() external view returns (bool);

    function nonces(address) external view returns (uint256);

    function initialize(
        address,
        string memory,
        string memory,
        address,
        uint256
    ) external;

    function setName(string memory) external;

    function setSymbol(string memory) external;

    function set_accountant(address new_accountant) external;

    function set_default_queue(address[] memory new_default_queue) external;

    function set_use_default_queue(bool) external;

    function set_auto_allocate(bool) external;

    function set_deposit_limit(uint256 deposit_limit) external;

    function set_deposit_limit(
        uint256 deposit_limit,
        bool should_override
    ) external;

    function set_deposit_limit_module(
        address new_deposit_limit_module
    ) external;

    function set_deposit_limit_module(
        address new_deposit_limit_module,
        bool should_override
    ) external;

    function set_withdraw_limit_module(
        address new_withdraw_limit_module
    ) external;

    function set_minimum_total_idle(uint256 minimum_total_idle) external;

    function setProfitMaxUnlockTime(
        uint256 new_profit_max_unlock_time
    ) external;

    function set_role(address account, uint256 role) external;

    function add_role(address account, uint256 role) external;

    function remove_role(address account, uint256 role) external;

    function transfer_role_manager(address role_manager) external;

    function accept_role_manager() external;

    function unlockedShares() external view returns (uint256);

    function pricePerShare() external view returns (uint256);

    function get_default_queue() external view returns (address[] memory);

    function process_report(
        address strategy
    ) external returns (uint256, uint256);

    function buy_debt(address strategy, uint256 amount) external;

    function add_strategy(address new_strategy) external;

    function revoke_strategy(address strategy) external;

    function force_revoke_strategy(address strategy) external;

    function update_max_debt_for_strategy(
        address strategy,
        uint256 new_max_debt
    ) external;

    function update_debt(
        address strategy,
        uint256 target_debt
    ) external returns (uint256);

    function update_debt(
        address strategy,
        uint256 target_debt,
        uint256 max_loss
    ) external returns (uint256);

    function shutdown_vault() external;

    function totalIdle() external view returns (uint256);

    function totalDebt() external view returns (uint256);

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

    function assess_share_of_unrealised_losses(
        address strategy,
        uint256 assets_needed
    ) external view returns (uint256);

    function profitMaxUnlockTime() external view returns (uint256);

    function fullProfitUnlockDate() external view returns (uint256);

    function profitUnlockingRate() external view returns (uint256);

    function lastProfitUpdate() external view returns (uint256);

    //// NON-STANDARD ERC-4626 FUNCTIONS \\\\

    function withdraw(
        uint256 assets,
        address receiver,
        address owner,
        uint256 max_loss
    ) external returns (uint256);

    function withdraw(
        uint256 assets,
        address receiver,
        address owner,
        uint256 max_loss,
        address[] memory strategies
    ) external returns (uint256);

    function redeem(
        uint256 shares,
        address receiver,
        address owner,
        uint256 max_loss
    ) external returns (uint256);

    function redeem(
        uint256 shares,
        address receiver,
        address owner,
        uint256 max_loss,
        address[] memory strategies
    ) external returns (uint256);

    function maxWithdraw(
        address owner,
        uint256 max_loss
    ) external view returns (uint256);

    function maxWithdraw(
        address owner,
        uint256 max_loss,
        address[] memory strategies
    ) external view returns (uint256);

    function maxRedeem(
        address owner,
        uint256 max_loss
    ) external view returns (uint256);

    function maxRedeem(
        address owner,
        uint256 max_loss,
        address[] memory strategies
    ) external view returns (uint256);

    //// NON-STANDARD ERC-20 FUNCTIONS \\\\

    function DOMAIN_SEPARATOR() external view returns (bytes32);

    function permit(
        address owner,
        address spender,
        uint256 amount,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (bool);
}

// src/registry/Registry.sol

interface IVaultFactory {
    function deploy_new_vault(
        address asset,
        string memory name,
        string memory symbol,
        address role_manager,
        uint256 profit_max_unlock_time
    ) external returns (address);

    function apiVersion() external view returns (string memory);
}

/**
 * @title YearnV3 Registry
 * @author yearn.finance
 * @notice
 *  Serves as an on chain registry to track any Yearn V3
 *  vaults and strategies that a certain party wants to
 *  endorse.
 *
 *  Can also be used to deploy new vaults of any specific
 *  API version.
 */
contract Registry is Governance {
    /// @notice Emitted when a new vault is deployed or added.
    event NewEndorsedVault(
        address indexed vault,
        address indexed asset,
        uint256 releaseVersion,
        uint256 vaultType
    );

    /// @notice Emitted when a vault is removed.
    event RemovedVault(
        address indexed vault,
        address indexed asset,
        uint256 releaseVersion,
        uint256 vaultType
    );

    /// @notice Emitted when a vault is tagged with a string.
    event VaultTagged(address indexed vault);

    /// @notice Emitted when gov adds ore removes a `tagger`.
    event UpdateTagger(address indexed account, bool status);

    /// @notice Emitted when gov adds ore removes a `endorser`.
    event UpdateEndorser(address indexed account, bool status);

    /// @notice Can only be gov or an `endorser`.
    modifier onlyEndorsers() {
        _isEndorser();
        _;
    }

    /// @notice Can only be gov or a `tagger`.
    modifier onlyTaggers() {
        _isTagger();
        _;
    }

    /// @notice Check is gov or an `endorser`.
    function _isEndorser() internal view {
        require(msg.sender == governance || endorsers[msg.sender], "!endorser");
    }

    /// @notice Check is gov or a `tagger`.
    function _isTagger() internal view {
        require(msg.sender == governance || taggers[msg.sender], "!tagger");
    }

    // Struct stored for every endorsed vault or strategy for
    // off chain use to easily retrieve info.
    struct Info {
        // The token thats being used.
        address asset;
        // The release number corresponding to the release registries version.
        uint96 releaseVersion;
        // Type of vault.
        uint64 vaultType;
        // Time when the vault was deployed for easier indexing.
        uint128 deploymentTimestamp;
        // Index the vault is at in array for easy removals.
        uint64 index;
        // String so that management can tag a vault with any info for FE's.
        string tag;
    }

    // Address used to get the specific versions from.
    address public immutable releaseRegistry;

    // Default type used for Multi strategy "Allocator" vaults.
    uint256 public constant MULTI_STRATEGY_TYPE = 1;

    // Default type used for Single "Tokenized" Strategy vaults.
    uint256 public constant SINGLE_STRATEGY_TYPE = 2;

    // Custom name for this Registry.
    string public name;

    // Old version of the registry to fall back to if exists.
    address public legacyRegistry;

    // Mapping for any address that is allowed to tag a vault.
    mapping(address => bool) public taggers;

    // Mapping for any address that is allowed to deploy or endorse.
    mapping(address => bool) public endorsers;

    // vault/strategy address => Info struct.
    mapping(address => Info) public vaultInfo;

    // Mapping to check if a specific `asset` has a vault.
    mapping(address => bool) public assetIsUsed;

    // asset => array of all endorsed vaults.
    mapping(address => address[]) internal _endorsedVaults;

    // Array of all tokens used as the underlying.
    address[] public assets;

    /**
     * @param _governance Address to set as owner of the Registry.
     * @param _name The custom string for this custom registry to be called.
     * @param _releaseRegistry The Permissionless releaseRegistry to deploy vaults through.
     */
    constructor(
        address _governance,
        string memory _name,
        address _releaseRegistry
    ) Governance(_governance) {
        // Set name.
        name = _name;
        // Set releaseRegistry.
        releaseRegistry = _releaseRegistry;
    }

    /**
     * @notice Returns the total number of assets being used as the underlying.
     * @return The amount of assets.
     */
    function numAssets() external view virtual returns (uint256) {
        return assets.length;
    }

    /**
     * @notice Get the full array of tokens being used.
     * @return The full array of underlying tokens being used/.
     */
    function getAssets() external view virtual returns (address[] memory) {
        return assets;
    }

    /**
     * @notice The amount of endorsed vaults for a specific token.
     * @return The amount of endorsed vaults.
     */
    function numEndorsedVaults(
        address _asset
    ) public view virtual returns (uint256) {
        return _endorsedVaults[_asset].length;
    }

    /**
     * @notice Get the array of vaults endorsed for an `_asset`.
     * @param _asset The underlying token used by the vaults.
     * @return The endorsed vaults.
     */
    function getEndorsedVaults(
        address _asset
    ) external view virtual returns (address[] memory) {
        return _endorsedVaults[_asset];
    }

    /**
     * @notice Get all endorsed vaults deployed using the Registry.
     * @dev This will return a nested array of all vaults deployed
     * separated by their underlying asset.
     *
     * This is only meant for off chain viewing and should not be used during any
     * on chain tx's.
     *
     * @return allEndorsedVaults A nested array containing all vaults.
     */
    function getAllEndorsedVaults()
        external
        view
        virtual
        returns (address[][] memory allEndorsedVaults)
    {
        address[] memory allAssets = assets;
        uint256 length = assets.length;

        allEndorsedVaults = new address[][](length);
        for (uint256 i; i < length; ++i) {
            allEndorsedVaults[i] = _endorsedVaults[allAssets[i]];
        }
    }

    /**
     * @notice Check if a vault is endorsed in this registry.
     * @dev This will check if the `asset` variable in the struct has been
     *   set for an easy external view check.
     * @param _vault Address of the vault to check.
     * @return . The vaults endorsement status.
     */
    function isEndorsed(address _vault) external view virtual returns (bool) {
        return vaultInfo[_vault].asset != address(0) || isLegacyVault(_vault);
    }

    /**
     * @notice Check if a vault is endorsed in the legacy registry.
     * @param _vault The vault to check.
     * @return True if the vault is endorsed in the legacy registry, false otherwise.
     */
    function isLegacyVault(address _vault) public view virtual returns (bool) {
        address _legacy = legacyRegistry;

        if (_legacy == address(0)) return false;

        return Registry(_legacy).isEndorsed(_vault);
    }

    /**
     * @notice
     *    Create and endorse a new multi strategy "Allocator"
     *      vault and endorse it in this registry.
     * @dev
     *   Throws if caller isn't `owner`.
     *   Throws if no releases are registered yet.
     *   Emits a `NewEndorsedVault` event.
     * @param _asset The asset that may be deposited into the new Vault.
     * @param _name Specify a custom Vault name. .
     * @param _symbol Specify a custom Vault symbol name.
     * @param _roleManager The address authorized for guardian interactions in the new Vault.
     * @param _profitMaxUnlockTime The time strategy profits will unlock over.
     * @return _vault address of the newly-deployed vault
     */
    function newEndorsedVault(
        address _asset,
        string memory _name,
        string memory _symbol,
        address _roleManager,
        uint256 _profitMaxUnlockTime
    ) public virtual returns (address _vault) {
        return
            newEndorsedVault(
                _asset,
                _name,
                _symbol,
                _roleManager,
                _profitMaxUnlockTime,
                0 // Default to latest version.
            );
    }

    /**
     * @notice
     *    Create and endorse a new multi strategy "Allocator"
     *      vault and endorse it in this registry.
     * @dev
     *   Throws if caller isn't `owner`.
     *   Throws if no releases are registered yet.
     *   Emits a `NewEndorsedVault` event.
     * @param _asset The asset that may be deposited into the new Vault.
     * @param _name Specify a custom Vault name. .
     * @param _symbol Specify a custom Vault symbol name.
     * @param _roleManager The address authorized for guardian interactions in the new Vault.
     * @param _profitMaxUnlockTime The time strategy profits will unlock over.
     * @param _releaseDelta The number of releases prior to the latest to use as a target. NOTE: Set to 0 for latest.
     * @return _vault address of the newly-deployed vault
     */
    function newEndorsedVault(
        address _asset,
        string memory _name,
        string memory _symbol,
        address _roleManager,
        uint256 _profitMaxUnlockTime,
        uint256 _releaseDelta
    ) public virtual onlyEndorsers returns (address _vault) {
        // Get the target release based on the delta given.
        uint256 _releaseTarget = ReleaseRegistry(releaseRegistry)
            .numReleases() -
            1 -
            _releaseDelta;

        // Get the factory address for that specific Api version.
        address factory = ReleaseRegistry(releaseRegistry).factories(
            _releaseTarget
        );

        // Make sure we got an actual factory
        require(factory != address(0), "Registry: unknown release");

        // Deploy New vault.
        _vault = IVaultFactory(factory).deploy_new_vault(
            _asset,
            _name,
            _symbol,
            _roleManager,
            _profitMaxUnlockTime
        );

        // Register the vault with this Registry
        _registerVault(
            _vault,
            _asset,
            _releaseTarget,
            MULTI_STRATEGY_TYPE,
            block.timestamp
        );
    }

    /**
     * @notice Endorse an already deployed multi strategy vault.
     * @dev To be used with default values for `_releaseDelta`, `_vaultType`
     * and `_deploymentTimestamp`.
     *
     * @param _vault Address of the vault to endorse.
     */
    function endorseMultiStrategyVault(address _vault) external virtual {
        endorseVault(_vault, 0, MULTI_STRATEGY_TYPE, 0);
    }

    /**
     * @notice Endorse an already deployed Single Strategy vault.
     * @dev To be used with default values for `_releaseDelta`, `_vaultType`
     * and `_deploymentTimestamp`.
     *
     * @param _vault Address of the vault to endorse.
     */
    function endorseSingleStrategyVault(address _vault) external virtual {
        endorseVault(_vault, 0, SINGLE_STRATEGY_TYPE, 0);
    }

    /**
     * @notice
     *    Adds an existing vault to the list of "endorsed" vaults for that asset.
     * @dev
     *    Throws if caller isn't `owner`.
     *    Throws if no releases are registered yet.
     *    Throws if `vault`'s api version does not match the release specified.
     *    Emits a `NewEndorsedVault` event.
     * @param _vault The vault that will be endorsed by the Registry.
     * @param _releaseDelta Specify the number of releases prior to the latest to use as a target.
     * @param _vaultType Type of vault to endorse.
     * @param _deploymentTimestamp The timestamp of when the vault was deployed for FE use.
     */
    function endorseVault(
        address _vault,
        uint256 _releaseDelta,
        uint256 _vaultType,
        uint256 _deploymentTimestamp
    ) public virtual onlyEndorsers {
        // Cannot endorse twice.
        require(vaultInfo[_vault].asset == address(0), "endorsed");
        require(_vaultType != 0, "no 0 type");
        require(_vaultType <= type(uint128).max, "type too high");
        require(_deploymentTimestamp <= block.timestamp, "!deployment time");

        // Will underflow if no releases created yet, or targeting prior to release history
        uint256 _releaseTarget = ReleaseRegistry(releaseRegistry)
            .numReleases() -
            1 -
            _releaseDelta; // dev: no releases

        // Get the API version for the target specified
        string memory apiVersion = IVaultFactory(
            ReleaseRegistry(releaseRegistry).factories(_releaseTarget)
        ).apiVersion();

        require(
            keccak256(bytes(IVault(_vault).apiVersion())) ==
                keccak256(bytes((apiVersion))),
            "Wrong API Version"
        );

        // Add to the end of the list of vaults for asset
        _registerVault(
            _vault,
            IVault(_vault).asset(),
            _releaseTarget,
            _vaultType,
            _deploymentTimestamp
        );
    }

    /**
     * @dev Function used to register a newly deployed or added vault.
     *
     * This well set all of the values for the vault in the `vaultInfo`
     * mapping as well as add the vault and the underlying asset to any
     * relevant arrays for tracking.
     *
     */
    function _registerVault(
        address _vault,
        address _asset,
        uint256 _releaseTarget,
        uint256 _vaultType,
        uint256 _deploymentTimestamp
    ) internal virtual {
        // Set the Info struct for this vault
        vaultInfo[_vault] = Info({
            asset: _asset,
            releaseVersion: uint96(_releaseTarget),
            vaultType: uint64(_vaultType),
            deploymentTimestamp: uint128(_deploymentTimestamp),
            index: uint64(_endorsedVaults[_asset].length),
            tag: ""
        });

        // Add to the endorsed vaults array.
        _endorsedVaults[_asset].push(_vault);

        if (!assetIsUsed[_asset]) {
            // We have a new asset to add
            assets.push(_asset);
            assetIsUsed[_asset] = true;
        }

        emit NewEndorsedVault(_vault, _asset, _releaseTarget, _vaultType);
    }

    /**
     * @notice Tag a vault with a specific string.
     * @dev This is available to governance to tag any vault or strategy
     * on chain if desired to arbitrarily classify any vaults.
     *   i.e. Certain ratings ("A") / Vault status ("Shutdown") etc.
     *
     * @param _vault Address of the vault or strategy to tag.
     * @param _tag The string to tag the vault or strategy with.
     */
    function tagVault(
        address _vault,
        string memory _tag
    ) external virtual onlyTaggers {
        require(vaultInfo[_vault].asset != address(0), "!Endorsed");
        vaultInfo[_vault].tag = _tag;

        emit VaultTagged(_vault);
    }

    /**
     * @notice Remove a `_vault`.
     * @dev Can be used as an efficient way to remove a vault
     * to not have to iterate over the full array.
     *
     * NOTE: This will not remove the asset from the `assets` array
     * if it is no longer in use and will have to be done manually.
     *
     * @param _vault Address of the vault to remove.
     */
    function removeVault(address _vault) external virtual onlyEndorsers {
        // Get the struct with all the vaults data.
        Info memory info = vaultInfo[_vault];
        require(info.asset != address(0), "!endorsed");
        require(
            _endorsedVaults[info.asset][info.index] == _vault,
            "wrong vault"
        );

        // Get the vault at the end of the array
        address lastVault = _endorsedVaults[info.asset][
            _endorsedVaults[info.asset].length - 1
        ];

        // If `_vault` is not the last item in the array.
        if (lastVault != _vault) {
            // Set the last index to the spot we are removing.
            _endorsedVaults[info.asset][info.index] = lastVault;

            // Update the index of the vault we moved
            vaultInfo[lastVault].index = uint64(info.index);
        }

        // Pop the last item off the array.
        _endorsedVaults[info.asset].pop();

        // Emit the event.
        emit RemovedVault(
            _vault,
            info.asset,
            info.releaseVersion,
            info.vaultType
        );

        // Delete the struct.
        delete vaultInfo[_vault];
    }

    /**
     * @notice Removes a specific `_asset` at `_index` from `assets`.
     * @dev Can be used if an asset is no longer in use after a vault or
     * strategy has also been removed.
     *
     * @param _asset The asset to remove from the array.
     * @param _index The index it sits at.
     */
    function removeAsset(
        address _asset,
        uint256 _index
    ) external virtual onlyEndorsers {
        require(assetIsUsed[_asset], "!in use");
        require(_endorsedVaults[_asset].length == 0, "still in use");
        require(assets[_index] == _asset, "wrong asset");

        // Replace `_asset` with the last index.
        assets[_index] = assets[assets.length - 1];

        // Pop last item off the array.
        assets.pop();

        // No longer used.
        assetIsUsed[_asset] = false;
    }

    /**
     * @notice Set a new address to be able to endorse or remove an existing endorser.
     * @param _account The address to set.
     * @param _canEndorse Bool if the `_account` can or cannot endorse.
     */
    function setEndorser(
        address _account,
        bool _canEndorse
    ) external virtual onlyGovernance {
        endorsers[_account] = _canEndorse;

        emit UpdateEndorser(_account, _canEndorse);
    }

    /**
     * @notice Set a new address to be able to tag a vault.
     * @param _account The address to set.
     * @param _canTag Bool if the `_account` can or cannot tag.
     */
    function setTagger(
        address _account,
        bool _canTag
    ) external virtual onlyGovernance {
        taggers[_account] = _canTag;

        emit UpdateTagger(_account, _canTag);
    }

    /**
     * @notice Set a legacy registry if one exists.
     * @param _legacyRegistry The address of the legacy registry.
     */
    function setLegacyRegistry(
        address _legacyRegistry
    ) external virtual onlyGovernance {
        legacyRegistry = _legacyRegistry;
    }
}

// src/registry/RegistryFactory.sol

/**
 * @title YearnV3 Registry Factory
 * @author yearn.finance
 * @notice
 *  Factory for anyone to easily deploy their own Registry.
 */
contract RegistryFactory {
    event NewRegistry(
        address indexed newRegistry,
        address indexed governance,
        string name
    );

    // The release registry to use for all Registries.
    address public immutable releaseRegistry;

    constructor(address _releaseRegistry) {
        releaseRegistry = _releaseRegistry;
    }

    function name() external pure virtual returns (string memory) {
        return "Yearn V3 Vault Registry Factory";
    }

    /**
     * @notice Deploy a new Registry.
     * @dev Default to msg.sender for governance.
     * @param _name The name of the new registry.
     * @return Address of the new Registry.
     */
    function createNewRegistry(
        string memory _name
    ) external virtual returns (address) {
        return createNewRegistry(_name, msg.sender);
    }

    /**
     * @notice Deploy a new Registry.
     * @param _name The name of the new registry.
     * @param _governance Address to set as governance.
     * @return Address of the new Registry.
     */
    function createNewRegistry(
        string memory _name,
        address _governance
    ) public virtual returns (address) {
        Registry newRegistry = new Registry(
            _governance,
            _name,
            releaseRegistry
        );

        emit NewRegistry(address(newRegistry), _governance, _name);
        return address(newRegistry);
    }
}

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Contract ABI

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Contract Creation Code

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

0000000000000000000000000377b4dadda86c89a0091772b79ba67d0e5f7198

-----Decoded View---------------
Arg [0] : _releaseRegistry (address): 0x0377b4daDDA86C89A0091772B79ba67d0E5F7198

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000000377b4dadda86c89a0091772b79ba67d0e5f7198

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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.

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