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Contract Name:
DefaultStakerRewards
Compiler Version
v0.8.25+commit.b61c2a91
Optimization Enabled:
Yes with 200 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity 0.8.25; import {IDefaultStakerRewards} from "src/interfaces/defaultStakerRewards/IDefaultStakerRewards.sol"; import {IStakerRewards} from "src/interfaces/stakerRewards/IStakerRewards.sol"; import {INetworkMiddlewareService} from "@symbiotic/interfaces/service/INetworkMiddlewareService.sol"; import {IRegistry} from "@symbiotic/interfaces/common/IRegistry.sol"; import {IVault} from "@symbiotic/interfaces/vault/IVault.sol"; import {AccessControlUpgradeable} from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol"; import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import {Math} from "@openzeppelin/contracts/utils/math/Math.sol"; import {MulticallUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/MulticallUpgradeable.sol"; import {ReentrancyGuardUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/ReentrancyGuardUpgradeable.sol"; import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import {Time} from "@openzeppelin/contracts/utils/types/Time.sol"; contract DefaultStakerRewards is AccessControlUpgradeable, ReentrancyGuardUpgradeable, MulticallUpgradeable, IDefaultStakerRewards { using SafeERC20 for IERC20; using Math for uint256; /** * @inheritdoc IStakerRewards */ uint64 public constant version = 1; /** * @inheritdoc IDefaultStakerRewards */ uint256 public constant ADMIN_FEE_BASE = 10_000; /** * @inheritdoc IDefaultStakerRewards */ bytes32 public constant ADMIN_FEE_CLAIM_ROLE = keccak256("ADMIN_FEE_CLAIM_ROLE"); /** * @inheritdoc IDefaultStakerRewards */ bytes32 public constant ADMIN_FEE_SET_ROLE = keccak256("ADMIN_FEE_SET_ROLE"); /** * @inheritdoc IDefaultStakerRewards */ address public immutable VAULT_FACTORY; /** * @inheritdoc IDefaultStakerRewards */ address public immutable NETWORK_REGISTRY; /** * @inheritdoc IDefaultStakerRewards */ address public immutable NETWORK_MIDDLEWARE_SERVICE; /** * @inheritdoc IDefaultStakerRewards */ address public VAULT; /** * @inheritdoc IDefaultStakerRewards */ uint256 public adminFee; /** * @inheritdoc IDefaultStakerRewards */ mapping(address token => mapping(address network => RewardDistribution[] rewards_)) public rewards; /** * @inheritdoc IDefaultStakerRewards */ mapping(address account => mapping(address token => mapping(address network => uint256 rewardIndex))) public lastUnclaimedReward; /** * @inheritdoc IDefaultStakerRewards */ mapping(address token => uint256 amount) public claimableAdminFee; mapping(uint48 timestamp => uint256 amount) private _activeSharesCache; constructor(address vaultFactory, address networkRegistry, address networkMiddlewareService) { _disableInitializers(); VAULT_FACTORY = vaultFactory; NETWORK_REGISTRY = networkRegistry; NETWORK_MIDDLEWARE_SERVICE = networkMiddlewareService; } /** * @inheritdoc IDefaultStakerRewards */ function rewardsLength(address token, address network) external view returns (uint256) { return rewards[token][network].length; } /** * @inheritdoc IStakerRewards */ function claimable( address token, address account, bytes calldata data ) external view override returns (uint256 amount) { // network - a network to claim rewards for // maxRewards - the maximum amount of rewards to process (address network, uint256 maxRewards) = abi.decode(data, (address, uint256)); RewardDistribution[] storage rewardsByTokenNetwork = rewards[token][network]; uint256 rewardIndex = lastUnclaimedReward[account][token][network]; uint256 rewardsToClaim = Math.min(maxRewards, rewardsByTokenNetwork.length - rewardIndex); for (uint256 i; i < rewardsToClaim;) { RewardDistribution storage reward = rewardsByTokenNetwork[rewardIndex]; amount += IVault(VAULT).activeSharesOfAt(account, reward.timestamp, new bytes(0)).mulDiv( reward.amount, _activeSharesCache[reward.timestamp] ); unchecked { ++i; ++rewardIndex; } } } function initialize(InitParams calldata params) external initializer { if (!IRegistry(VAULT_FACTORY).isEntity(params.vault)) { revert NotVault(); } if ( params.defaultAdminRoleHolder == address(0) && params.adminFee != 0 && params.adminFeeClaimRoleHolder == address(0) ) { revert MissingRoles(); } __ReentrancyGuard_init(); VAULT = params.vault; _setAdminFee(params.adminFee); if (params.defaultAdminRoleHolder != address(0)) { _grantRole(DEFAULT_ADMIN_ROLE, params.defaultAdminRoleHolder); } if (params.adminFeeClaimRoleHolder != address(0)) { _grantRole(ADMIN_FEE_CLAIM_ROLE, params.adminFeeClaimRoleHolder); } if (params.adminFeeSetRoleHolder != address(0)) { _grantRole(ADMIN_FEE_SET_ROLE, params.adminFeeSetRoleHolder); } } /** * @inheritdoc IStakerRewards */ function distributeRewards( address network, address token, uint256 amount, bytes calldata data ) external override nonReentrant { // timestamp - a time point stakes must be taken into account at // maxAdminFee - the maximum admin fee to allow // activeSharesHint - a hint index to optimize `activeSharesAt()` processing // activeStakeHint - a hint index to optimize `activeStakeAt()` processing (uint48 timestamp, uint256 maxAdminFee, bytes memory activeSharesHint, bytes memory activeStakeHint) = abi.decode(data, (uint48, uint256, bytes, bytes)); if (INetworkMiddlewareService(NETWORK_MIDDLEWARE_SERVICE).middleware(network) != msg.sender) { revert NotNetworkMiddleware(); } if (timestamp >= Time.timestamp()) { revert InvalidRewardTimestamp(); } uint256 adminFee_ = adminFee; if (maxAdminFee < adminFee_) { revert HighAdminFee(); } if (_activeSharesCache[timestamp] == 0) { uint256 activeShares_ = IVault(VAULT).activeSharesAt(timestamp, activeSharesHint); uint256 activeStake_ = IVault(VAULT).activeStakeAt(timestamp, activeStakeHint); if (activeShares_ == 0 || activeStake_ == 0) { revert InvalidRewardTimestamp(); } _activeSharesCache[timestamp] = activeShares_; } uint256 balanceBefore = IERC20(token).balanceOf(address(this)); IERC20(token).safeTransferFrom(msg.sender, address(this), amount); amount = IERC20(token).balanceOf(address(this)) - balanceBefore; if (amount == 0) { revert InsufficientReward(); } uint256 adminFeeAmount = amount.mulDiv(adminFee_, ADMIN_FEE_BASE); uint256 distributeAmount = amount - adminFeeAmount; claimableAdminFee[token] += adminFeeAmount; if (distributeAmount > 0) { rewards[token][network].push(RewardDistribution({amount: distributeAmount, timestamp: timestamp})); } emit DistributeRewards(network, token, amount, data); } /** * @inheritdoc IStakerRewards */ function claimRewards(address recipient, address token, bytes calldata data) external override nonReentrant { // network - a network to claim rewards for // maxRewards - the maximum amount of rewards to process // activeSharesOfHints - hint indexes to optimize `activeSharesOf()` processing (address network, uint256 maxRewards, bytes[] memory activeSharesOfHints) = abi.decode(data, (address, uint256, bytes[])); if (recipient == address(0)) { revert InvalidRecipient(); } RewardDistribution[] storage rewardsByTokenNetwork = rewards[token][network]; uint256 lastUnclaimedReward_ = lastUnclaimedReward[msg.sender][token][network]; uint256 rewardsToClaim = Math.min(maxRewards, rewardsByTokenNetwork.length - lastUnclaimedReward_); if (rewardsToClaim == 0) { revert NoRewardsToClaim(); } if (activeSharesOfHints.length == 0) { activeSharesOfHints = new bytes[](rewardsToClaim); } else if (activeSharesOfHints.length != rewardsToClaim) { revert InvalidHintsLength(); } uint256 amount; uint256 rewardIndex = lastUnclaimedReward_; for (uint256 i; i < rewardsToClaim;) { RewardDistribution storage reward = rewardsByTokenNetwork[rewardIndex]; amount += IVault(VAULT).activeSharesOfAt(msg.sender, reward.timestamp, activeSharesOfHints[i]).mulDiv( reward.amount, _activeSharesCache[reward.timestamp] ); unchecked { ++i; ++rewardIndex; } } lastUnclaimedReward[msg.sender][token][network] = rewardIndex; if (amount > 0) { IERC20(token).safeTransfer(recipient, amount); } emit ClaimRewards(token, network, msg.sender, recipient, lastUnclaimedReward_, rewardsToClaim, amount); } /** * @inheritdoc IDefaultStakerRewards */ function claimAdminFee(address recipient, address token) external nonReentrant onlyRole(ADMIN_FEE_CLAIM_ROLE) { uint256 claimableAdminFee_ = claimableAdminFee[token]; if (claimableAdminFee_ == 0) { revert InsufficientAdminFee(); } claimableAdminFee[token] = 0; IERC20(token).safeTransfer(recipient, claimableAdminFee_); emit ClaimAdminFee(token, claimableAdminFee_); } /** * @inheritdoc IDefaultStakerRewards */ function setAdminFee(uint256 adminFee_) external onlyRole(ADMIN_FEE_SET_ROLE) { if (adminFee == adminFee_) { revert AlreadySet(); } _setAdminFee(adminFee_); emit SetAdminFee(adminFee_); } function _setAdminFee(uint256 adminFee_) private { if (adminFee_ > ADMIN_FEE_BASE) { revert InvalidAdminFee(); } adminFee = adminFee_; } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.25; import {IStakerRewards} from "src/interfaces/stakerRewards/IStakerRewards.sol"; interface IDefaultStakerRewards is IStakerRewards { error AlreadySet(); error HighAdminFee(); error InsufficientAdminFee(); error InsufficientReward(); error InvalidAdminFee(); error InvalidHintsLength(); error InvalidRecipient(); error InvalidRewardTimestamp(); error MissingRoles(); error NoRewardsToClaim(); error NotNetwork(); error NotNetworkMiddleware(); error NotVault(); /** * @notice Initial parameters needed for a staker rewards contract deployment. * @param vault address of the vault to get stakers' data from * @param adminFee admin fee (up to ADMIN_FEE_BASE inclusively) * @param defaultAdminRoleHolder address of the initial DEFAULT_ADMIN_ROLE holder * @param adminFeeClaimRoleHolder address of the initial ADMIN_FEE_CLAIM_ROLE holder * @param adminFeeSetRoleHolder address of the initial ADMIN_FEE_SET_ROLE holder */ struct InitParams { address vault; uint256 adminFee; address defaultAdminRoleHolder; address adminFeeClaimRoleHolder; address adminFeeSetRoleHolder; } /** * @notice Structure for a reward distribution. * @param amount amount of tokens to be distributed (admin fee is excluded) * @param timestamp time point stakes must taken into account at */ struct RewardDistribution { uint256 amount; uint48 timestamp; } /** * @notice Emitted when rewards are claimed. * @param token address of the token claimed * @param network address of the network * @param claimer account that claimed the reward * @param recipient account that received the reward * @param firstRewardIndex first index of the claimed rewards * @param numRewards number of rewards claimed * @param amount amount of tokens claimed */ event ClaimRewards( address indexed token, address indexed network, address indexed claimer, address recipient, uint256 firstRewardIndex, uint256 numRewards, uint256 amount ); /** * @notice Emitted when an admin fee is claimed. * @param recipient account that received the fee * @param amount amount of the fee claimed */ event ClaimAdminFee(address indexed recipient, uint256 amount); /** * @notice Emitted when an admin fee is set. * @param adminFee admin fee */ event SetAdminFee(uint256 adminFee); /** * @notice Get the maximum admin fee (= 100%). * @return maximum admin fee */ function ADMIN_FEE_BASE() external view returns (uint256); /** * @notice Get the admin fee claimer's role. * @return identifier of the admin fee claimer role */ function ADMIN_FEE_CLAIM_ROLE() external view returns (bytes32); /** * @notice Get the admin fee setter's role. * @return identifier of the admin fee setter role */ function ADMIN_FEE_SET_ROLE() external view returns (bytes32); /** * @notice Get the vault factory's address. * @return address of the vault factory */ function VAULT_FACTORY() external view returns (address); /** * @notice Get the network registry's address. * @return address of the network registry */ function NETWORK_REGISTRY() external view returns (address); /** * @notice Get the network middleware service's address. * @return address of the network middleware service */ function NETWORK_MIDDLEWARE_SERVICE() external view returns (address); /** * @notice Get the vault's address. * @return address of the vault */ function VAULT() external view returns (address); /** * @notice Get an admin fee. * @return admin fee */ function adminFee() external view returns (uint256); /** * @notice Get a total number of rewards using a particular token for a given network. * @param token address of the token * @param network address of the network * @return total number of the rewards using the token by the network */ function rewardsLength(address token, address network) external view returns (uint256); /** * @notice Get a particular reward distribution. * @param token address of the token * @param network address of the network * @param rewardIndex index of the reward distribution using the token * @return amount amount of tokens to be distributed * @return timestamp time point stakes must taken into account at */ function rewards( address token, address network, uint256 rewardIndex ) external view returns (uint256 amount, uint48 timestamp); /** * @notice Get the first index of the unclaimed rewards using a particular token by a given account. * @param account address of the account * @param token address of the token * @param network address of the network * @return first index of the unclaimed rewards */ function lastUnclaimedReward(address account, address token, address network) external view returns (uint256); /** * @notice Get a claimable admin fee amount for a particular token. * @param token address of the token * @return claimable admin fee */ function claimableAdminFee(address token) external view returns (uint256); /** * @notice Claim an admin fee. * @param recipient account that will receive the fee * @param token address of the token * @dev Only the vault owner can call this function. */ function claimAdminFee(address recipient, address token) external; /** * @notice Set an admin fee. * @param adminFee admin fee (up to ADMIN_FEE_BASE inclusively) * @dev Only the ADMIN_FEE_SET_ROLE holder can call this function. */ function setAdminFee(uint256 adminFee) external; }
// SPDX-License-Identifier: MIT pragma solidity 0.8.25; interface IStakerRewards { /** * @notice Emitted when a reward is distributed. * @param network network on behalf of which the reward is distributed * @param token address of the token * @param amount amount of tokens * @param data some used data */ event DistributeRewards(address indexed network, address indexed token, uint256 amount, bytes data); /** * @notice Get a version of the staker rewards contract (different versions mean different interfaces). * @return version of the staker rewards contract * @dev Must return 1 for this one. */ function version() external view returns (uint64); /** * @notice Get an amount of rewards claimable by a particular account of a given token. * @param token address of the token * @param account address of the claimer * @param data some data to use * @return amount of claimable tokens */ function claimable(address token, address account, bytes calldata data) external view returns (uint256); /** * @notice Distribute rewards on behalf of a particular network using a given token. * @param network network on behalf of which the reward to distribute * @param token address of the token * @param amount amount of tokens * @param data some data to use */ function distributeRewards(address network, address token, uint256 amount, bytes calldata data) external; /** * @notice Claim rewards using a given token. * @param recipient address of the tokens' recipient * @param token address of the token * @param data some data to use */ function claimRewards(address recipient, address token, bytes calldata data) external; }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity 0.8.25; interface INetworkMiddlewareService { error AlreadySet(); error NotNetwork(); /** * @notice Emitted when a middleware is set for a network. * @param network address of the network * @param middleware new middleware of the network */ event SetMiddleware(address indexed network, address middleware); /** * @notice Get the network registry's address. * @return address of the network registry */ function NETWORK_REGISTRY() external view returns (address); /** * @notice Get a given network's middleware. * @param network address of the network * @return middleware of the network */ function middleware(address network) external view returns (address); /** * @notice Set a new middleware for a calling network. * @param middleware new middleware of the network */ function setMiddleware(address middleware) external; }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity 0.8.25; interface IRegistry { error EntityNotExist(); /** * @notice Emitted when an entity is added. * @param entity address of the added entity */ event AddEntity(address indexed entity); /** * @notice Get if a given address is an entity. * @param account address to check * @return if the given address is an entity */ function isEntity(address account) external view returns (bool); /** * @notice Get a total number of entities. * @return total number of entities added */ function totalEntities() external view returns (uint256); /** * @notice Get an entity given its index. * @param index index of the entity to get * @return address of the entity */ function entity(uint256 index) external view returns (address); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity 0.8.25; import {IVaultStorage} from "./IVaultStorage.sol"; interface IVault is IVaultStorage { error AlreadyClaimed(); error AlreadySet(); error InsufficientClaim(); error InsufficientDeposit(); error InsufficientWithdrawal(); error InvalidAccount(); error InvalidCaptureEpoch(); error InvalidClaimer(); error InvalidCollateral(); error InvalidEpoch(); error InvalidEpochDuration(); error InvalidLengthEpochs(); error InvalidOnBehalfOf(); error InvalidRecipient(); error MissingRoles(); error NoDepositWhitelist(); error NotDelegator(); error NotSlasher(); error NotWhitelistedDepositor(); error TooMuchWithdraw(); /** * @notice Initial parameters needed for a vault deployment. * @param collateral vault's underlying collateral * @param delegator vault's delegator to delegate the stake to networks and operators * @param slasher vault's slasher to provide a slashing mechanism to networks * @param burner vault's burner to issue debt to (e.g., 0xdEaD or some unwrapper contract) * @param epochDuration duration of the vault epoch (it determines sync points for withdrawals) * @param depositWhitelist if enabling deposit whitelist * @param defaultAdminRoleHolder address of the initial DEFAULT_ADMIN_ROLE holder * @param depositWhitelistSetRoleHolder address of the initial DEPOSIT_WHITELIST_SET_ROLE holder * @param depositorWhitelistRoleHolder address of the initial DEPOSITOR_WHITELIST_ROLE holder */ struct InitParams { address collateral; address delegator; address slasher; address burner; uint48 epochDuration; bool depositWhitelist; address defaultAdminRoleHolder; address depositWhitelistSetRoleHolder; address depositorWhitelistRoleHolder; } /** * @notice Hints for an active balance. * @param activeSharesOfHint hint for the active shares of checkpoint * @param activeStakeHint hint for the active stake checkpoint * @param activeSharesHint hint for the active shares checkpoint */ struct ActiveBalanceOfHints { bytes activeSharesOfHint; bytes activeStakeHint; bytes activeSharesHint; } /** * @notice Emitted when a deposit is made. * @param depositor account that made the deposit * @param onBehalfOf account the deposit was made on behalf of * @param amount amount of the collateral deposited * @param shares amount of the active shares minted */ event Deposit(address indexed depositor, address indexed onBehalfOf, uint256 amount, uint256 shares); /** * @notice Emitted when a withdrawal is made. * @param withdrawer account that made the withdrawal * @param claimer account that needs to claim the withdrawal * @param amount amount of the collateral withdrawn * @param burnedShares amount of the active shares burned * @param mintedShares amount of the epoch withdrawal shares minted */ event Withdraw( address indexed withdrawer, address indexed claimer, uint256 amount, uint256 burnedShares, uint256 mintedShares ); /** * @notice Emitted when a claim is made. * @param claimer account that claimed * @param recipient account that received the collateral * @param epoch epoch the collateral was claimed for * @param amount amount of the collateral claimed */ event Claim(address indexed claimer, address indexed recipient, uint256 epoch, uint256 amount); /** * @notice Emitted when a batch claim is made. * @param claimer account that claimed * @param recipient account that received the collateral * @param epochs epochs the collateral was claimed for * @param amount amount of the collateral claimed */ event ClaimBatch(address indexed claimer, address indexed recipient, uint256[] epochs, uint256 amount); /** * @notice Emitted when a slash happened. * @param slasher address of the slasher * @param slashedAmount amount of the collateral slashed */ event OnSlash(address indexed slasher, uint256 slashedAmount); /** * @notice Emitted when a deposit whitelist status is enabled/disabled. * @param depositWhitelist if enabled deposit whitelist */ event SetDepositWhitelist(bool depositWhitelist); /** * @notice Emitted when a depositor whitelist status is set. * @param account account for which the whitelist status is set * @param status if whitelisted the account */ event SetDepositorWhitelistStatus(address indexed account, bool status); /** * @notice Get a total amount of the collateral that can be slashed. * @return total amount of the slashable collateral */ function totalStake() external view returns (uint256); /** * @notice Get an active balance for a particular account at a given timestamp using hints. * @param account account to get the active balance for * @param timestamp time point to get the active balance for the account at * @param hints hints for checkpoints' indexes * @return active balance for the account at the timestamp */ function activeBalanceOfAt( address account, uint48 timestamp, bytes calldata hints ) external view returns (uint256); /** * @notice Get an active balance for a particular account. * @param account account to get the active balance for * @return active balance for the account */ function activeBalanceOf(address account) external view returns (uint256); /** * @notice Get withdrawals for a particular account at a given epoch (zero if claimed). * @param epoch epoch to get the withdrawals for the account at * @param account account to get the withdrawals for * @return withdrawals for the account at the epoch */ function withdrawalsOf(uint256 epoch, address account) external view returns (uint256); /** * @notice Get a total amount of the collateral that can be slashed for a given account. * @return total amount of the slashable collateral */ function balanceOf(address account) external view returns (uint256); /** * @notice Deposit collateral into the vault. * @param onBehalfOf account the deposit is made on behalf of * @param amount amount of the collateral to deposit * @return depositedAmount amount of the collateral deposited * @return mintedShares amount of the active shares minted */ function deposit( address onBehalfOf, uint256 amount ) external returns (uint256 depositedAmount, uint256 mintedShares); /** * @notice Withdraw collateral from the vault (it will be claimable after the next epoch). * @param claimer account that needs to claim the withdrawal * @param amount amount of the collateral to withdraw * @return burnedShares amount of the active shares burned * @return mintedShares amount of the epoch withdrawal shares minted */ function withdraw(address claimer, uint256 amount) external returns (uint256 burnedShares, uint256 mintedShares); /** * @notice Claim collateral from the vault. * @param recipient account that receives the collateral * @param epoch epoch to claim the collateral for * @return amount amount of the collateral claimed */ function claim(address recipient, uint256 epoch) external returns (uint256 amount); /** * @notice Claim collateral from the vault for multiple epochs. * @param recipient account that receives the collateral * @param epochs epochs to claim the collateral for * @return amount amount of the collateral claimed */ function claimBatch(address recipient, uint256[] calldata epochs) external returns (uint256 amount); /** * @notice Slash callback for burning collateral. * @param slashedAmount amount to slash * @param captureTimestamp time point when the stake was captured * @dev Only the slasher can call this function. */ function onSlash(uint256 slashedAmount, uint48 captureTimestamp) external; /** * @notice Enable/disable deposit whitelist. * @param status if enabling deposit whitelist * @dev Only a DEPOSIT_WHITELIST_SET_ROLE holder can call this function. */ function setDepositWhitelist(bool status) external; /** * @notice Set a depositor whitelist status. * @param account account for which the whitelist status is set * @param status if whitelisting the account * @dev Only a DEPOSITOR_WHITELIST_ROLE holder can call this function. */ function setDepositorWhitelistStatus(address account, bool status) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/AccessControl.sol) pragma solidity ^0.8.20; import {IAccessControl} from "@openzeppelin/contracts/access/IAccessControl.sol"; import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol"; import {ERC165Upgradeable} from "../utils/introspection/ERC165Upgradeable.sol"; import {Initializable} from "../proxy/utils/Initializable.sol"; /** * @dev Contract module that allows children to implement role-based access * control mechanisms. This is a lightweight version that doesn't allow enumerating role * members except through off-chain means by accessing the contract event logs. Some * applications may benefit from on-chain enumerability, for those cases see * {AccessControlEnumerable}. * * Roles are referred to by their `bytes32` identifier. These should be exposed * in the external API and be unique. The best way to achieve this is by * using `public constant` hash digests: * * ```solidity * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); * ``` * * Roles can be used to represent a set of permissions. To restrict access to a * function call, use {hasRole}: * * ```solidity * function foo() public { * require(hasRole(MY_ROLE, msg.sender)); * ... * } * ``` * * Roles can be granted and revoked dynamically via the {grantRole} and * {revokeRole} functions. Each role has an associated admin role, and only * accounts that have a role's admin role can call {grantRole} and {revokeRole}. * * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means * that only accounts with this role will be able to grant or revoke other * roles. More complex role relationships can be created by using * {_setRoleAdmin}. * * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to * grant and revoke this role. Extra precautions should be taken to secure * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules} * to enforce additional security measures for this role. */ abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControl, ERC165Upgradeable { struct RoleData { mapping(address account => bool) hasRole; bytes32 adminRole; } bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /// @custom:storage-location erc7201:openzeppelin.storage.AccessControl struct AccessControlStorage { mapping(bytes32 role => RoleData) _roles; } // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.AccessControl")) - 1)) & ~bytes32(uint256(0xff)) bytes32 private constant AccessControlStorageLocation = 0x02dd7bc7dec4dceedda775e58dd541e08a116c6c53815c0bd028192f7b626800; function _getAccessControlStorage() private pure returns (AccessControlStorage storage $) { assembly { $.slot := AccessControlStorageLocation } } /** * @dev Modifier that checks that an account has a specific role. Reverts * with an {AccessControlUnauthorizedAccount} error including the required role. */ modifier onlyRole(bytes32 role) { _checkRole(role); _; } function __AccessControl_init() internal onlyInitializing { } function __AccessControl_init_unchained() internal onlyInitializing { } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view virtual returns (bool) { AccessControlStorage storage $ = _getAccessControlStorage(); return $._roles[role].hasRole[account]; } /** * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()` * is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier. */ function _checkRole(bytes32 role) internal view virtual { _checkRole(role, _msgSender()); } /** * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account` * is missing `role`. */ function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert AccessControlUnauthorizedAccount(account, role); } } /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) public view virtual returns (bytes32) { AccessControlStorage storage $ = _getAccessControlStorage(); return $._roles[role].adminRole; } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleGranted} event. */ function grantRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleRevoked} event. */ function revokeRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been revoked `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `callerConfirmation`. * * May emit a {RoleRevoked} event. */ function renounceRole(bytes32 role, address callerConfirmation) public virtual { if (callerConfirmation != _msgSender()) { revert AccessControlBadConfirmation(); } _revokeRole(role, callerConfirmation); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { AccessControlStorage storage $ = _getAccessControlStorage(); bytes32 previousAdminRole = getRoleAdmin(role); $._roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } /** * @dev Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted. * * Internal function without access restriction. * * May emit a {RoleGranted} event. */ function _grantRole(bytes32 role, address account) internal virtual returns (bool) { AccessControlStorage storage $ = _getAccessControlStorage(); if (!hasRole(role, account)) { $._roles[role].hasRole[account] = true; emit RoleGranted(role, account, _msgSender()); return true; } else { return false; } } /** * @dev Attempts to revoke `role` to `account` and returns a boolean indicating if `role` was revoked. * * Internal function without access restriction. * * May emit a {RoleRevoked} event. */ function _revokeRole(bytes32 role, address account) internal virtual returns (bool) { AccessControlStorage storage $ = _getAccessControlStorage(); if (hasRole(role, account)) { $._roles[role].hasRole[account] = false; emit RoleRevoked(role, account, _msgSender()); return true; } else { return false; } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.20; /** * @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 value of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the value of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool); /** * @dev Moves a `value` amount of tokens from `from` to `to` using the * allowance mechanism. `value` 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 value) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol) pragma solidity ^0.8.20; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { /** * @dev Muldiv operation overflow. */ error MathOverflowedMulDiv(); enum Rounding { Floor, // Toward negative infinity Ceil, // Toward positive infinity Trunc, // Toward zero Expand // Away from zero } /** * @dev Returns the addition of two unsigned integers, with an overflow flag. */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the subtraction of two unsigned integers, with an overflow flag. */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds towards infinity instead * of rounding towards zero. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { if (b == 0) { // Guarantee the same behavior as in a regular Solidity division. return a / b; } // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or * denominator == 0. * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by * Uniswap Labs also under MIT license. */ function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0 = x * y; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { // Solidity will revert if denominator == 0, unlike the div opcode on its own. // The surrounding unchecked block does not change this fact. // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic. return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. if (denominator <= prod1) { revert MathOverflowedMulDiv(); } /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. // Always >= 1. See https://cs.stackexchange.com/q/138556/92363. uint256 twos = denominator & (0 - denominator); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also // works in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded * towards zero. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10 ** 64) { value /= 10 ** 64; result += 64; } if (value >= 10 ** 32) { value /= 10 ** 32; result += 32; } if (value >= 10 ** 16) { value /= 10 ** 16; result += 16; } if (value >= 10 ** 8) { value /= 10 ** 8; result += 8; } if (value >= 10 ** 4) { value /= 10 ** 4; result += 4; } if (value >= 10 ** 2) { value /= 10 ** 2; result += 2; } if (value >= 10 ** 1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0); } } /** * @dev Return the log in base 256 of a positive value rounded towards zero. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 256, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0); } } /** * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers. */ function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) { return uint8(rounding) % 2 == 1; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.1) (utils/Multicall.sol) pragma solidity ^0.8.20; import {Address} from "@openzeppelin/contracts/utils/Address.sol"; import {ContextUpgradeable} from "./ContextUpgradeable.sol"; import {Initializable} from "../proxy/utils/Initializable.sol"; /** * @dev Provides a function to batch together multiple calls in a single external call. * * Consider any assumption about calldata validation performed by the sender may be violated if it's not especially * careful about sending transactions invoking {multicall}. For example, a relay address that filters function * selectors won't filter calls nested within a {multicall} operation. * * NOTE: Since 5.0.1 and 4.9.4, this contract identifies non-canonical contexts (i.e. `msg.sender` is not {_msgSender}). * If a non-canonical context is identified, the following self `delegatecall` appends the last bytes of `msg.data` * to the subcall. This makes it safe to use with {ERC2771Context}. Contexts that don't affect the resolution of * {_msgSender} are not propagated to subcalls. */ abstract contract MulticallUpgradeable is Initializable, ContextUpgradeable { function __Multicall_init() internal onlyInitializing { } function __Multicall_init_unchained() internal onlyInitializing { } /** * @dev Receives and executes a batch of function calls on this contract. * @custom:oz-upgrades-unsafe-allow-reachable delegatecall */ function multicall(bytes[] calldata data) external virtual returns (bytes[] memory results) { bytes memory context = msg.sender == _msgSender() ? new bytes(0) : msg.data[msg.data.length - _contextSuffixLength():]; results = new bytes[](data.length); for (uint256 i = 0; i < data.length; i++) { results[i] = Address.functionDelegateCall(address(this), bytes.concat(data[i], context)); } return results; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol) pragma solidity ^0.8.20; import {Initializable} from "../proxy/utils/Initializable.sol"; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuardUpgradeable is Initializable { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant NOT_ENTERED = 1; uint256 private constant ENTERED = 2; /// @custom:storage-location erc7201:openzeppelin.storage.ReentrancyGuard struct ReentrancyGuardStorage { uint256 _status; } // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ReentrancyGuard")) - 1)) & ~bytes32(uint256(0xff)) bytes32 private constant ReentrancyGuardStorageLocation = 0x9b779b17422d0df92223018b32b4d1fa46e071723d6817e2486d003becc55f00; function _getReentrancyGuardStorage() private pure returns (ReentrancyGuardStorage storage $) { assembly { $.slot := ReentrancyGuardStorageLocation } } /** * @dev Unauthorized reentrant call. */ error ReentrancyGuardReentrantCall(); function __ReentrancyGuard_init() internal onlyInitializing { __ReentrancyGuard_init_unchained(); } function __ReentrancyGuard_init_unchained() internal onlyInitializing { ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage(); $._status = NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { _nonReentrantBefore(); _; _nonReentrantAfter(); } function _nonReentrantBefore() private { ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage(); // On the first call to nonReentrant, _status will be NOT_ENTERED if ($._status == ENTERED) { revert ReentrancyGuardReentrantCall(); } // Any calls to nonReentrant after this point will fail $._status = ENTERED; } function _nonReentrantAfter() private { ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage(); // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) $._status = NOT_ENTERED; } /** * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a * `nonReentrant` function in the call stack. */ function _reentrancyGuardEntered() internal view returns (bool) { ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage(); return $._status == ENTERED; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.20; import {IERC20} from "../IERC20.sol"; import {IERC20Permit} from "../extensions/IERC20Permit.sol"; import {Address} from "../../../utils/Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; /** * @dev An operation with an ERC20 token failed. */ error SafeERC20FailedOperation(address token); /** * @dev Indicates a failed `decreaseAllowance` request. */ error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease); /** * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value))); } /** * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful. */ function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value))); } /** * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 oldAllowance = token.allowance(address(this), spender); forceApprove(token, spender, oldAllowance + value); } /** * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no * value, non-reverting calls are assumed to be successful. */ function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal { unchecked { uint256 currentAllowance = token.allowance(address(this), spender); if (currentAllowance < requestedDecrease) { revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease); } forceApprove(token, spender, currentAllowance - requestedDecrease); } } /** * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval * to be set to zero before setting it to a non-zero value, such as USDT. */ function forceApprove(IERC20 token, address spender, uint256 value) internal { bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value)); if (!_callOptionalReturnBool(token, approvalCall)) { _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0))); _callOptionalReturn(token, approvalCall); } } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data); if (returndata.length != 0 && !abi.decode(returndata, (bool))) { revert SafeERC20FailedOperation(address(token)); } } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). * * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead. */ function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false // and not revert is the subcall reverts. (bool success, bytes memory returndata) = address(token).call(data); return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && address(token).code.length > 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/types/Time.sol) pragma solidity ^0.8.20; import {Math} from "../math/Math.sol"; import {SafeCast} from "../math/SafeCast.sol"; /** * @dev This library provides helpers for manipulating time-related objects. * * It uses the following types: * - `uint48` for timepoints * - `uint32` for durations * * While the library doesn't provide specific types for timepoints and duration, it does provide: * - a `Delay` type to represent duration that can be programmed to change value automatically at a given point * - additional helper functions */ library Time { using Time for *; /** * @dev Get the block timestamp as a Timepoint. */ function timestamp() internal view returns (uint48) { return SafeCast.toUint48(block.timestamp); } /** * @dev Get the block number as a Timepoint. */ function blockNumber() internal view returns (uint48) { return SafeCast.toUint48(block.number); } // ==================================================== Delay ===================================================== /** * @dev A `Delay` is a uint32 duration that can be programmed to change value automatically at a given point in the * future. The "effect" timepoint describes when the transitions happens from the "old" value to the "new" value. * This allows updating the delay applied to some operation while keeping some guarantees. * * In particular, the {update} function guarantees that if the delay is reduced, the old delay still applies for * some time. For example if the delay is currently 7 days to do an upgrade, the admin should not be able to set * the delay to 0 and upgrade immediately. If the admin wants to reduce the delay, the old delay (7 days) should * still apply for some time. * * * The `Delay` type is 112 bits long, and packs the following: * * ``` * | [uint48]: effect date (timepoint) * | | [uint32]: value before (duration) * ↓ ↓ ↓ [uint32]: value after (duration) * 0xAAAAAAAAAAAABBBBBBBBCCCCCCCC * ``` * * NOTE: The {get} and {withUpdate} functions operate using timestamps. Block number based delays are not currently * supported. */ type Delay is uint112; /** * @dev Wrap a duration into a Delay to add the one-step "update in the future" feature */ function toDelay(uint32 duration) internal pure returns (Delay) { return Delay.wrap(duration); } /** * @dev Get the value at a given timepoint plus the pending value and effect timepoint if there is a scheduled * change after this timepoint. If the effect timepoint is 0, then the pending value should not be considered. */ function _getFullAt(Delay self, uint48 timepoint) private pure returns (uint32, uint32, uint48) { (uint32 valueBefore, uint32 valueAfter, uint48 effect) = self.unpack(); return effect <= timepoint ? (valueAfter, 0, 0) : (valueBefore, valueAfter, effect); } /** * @dev Get the current value plus the pending value and effect timepoint if there is a scheduled change. If the * effect timepoint is 0, then the pending value should not be considered. */ function getFull(Delay self) internal view returns (uint32, uint32, uint48) { return _getFullAt(self, timestamp()); } /** * @dev Get the current value. */ function get(Delay self) internal view returns (uint32) { (uint32 delay, , ) = self.getFull(); return delay; } /** * @dev Update a Delay object so that it takes a new duration after a timepoint that is automatically computed to * enforce the old delay at the moment of the update. Returns the updated Delay object and the timestamp when the * new delay becomes effective. */ function withUpdate( Delay self, uint32 newValue, uint32 minSetback ) internal view returns (Delay updatedDelay, uint48 effect) { uint32 value = self.get(); uint32 setback = uint32(Math.max(minSetback, value > newValue ? value - newValue : 0)); effect = timestamp() + setback; return (pack(value, newValue, effect), effect); } /** * @dev Split a delay into its components: valueBefore, valueAfter and effect (transition timepoint). */ function unpack(Delay self) internal pure returns (uint32 valueBefore, uint32 valueAfter, uint48 effect) { uint112 raw = Delay.unwrap(self); valueAfter = uint32(raw); valueBefore = uint32(raw >> 32); effect = uint48(raw >> 64); return (valueBefore, valueAfter, effect); } /** * @dev pack the components into a Delay object. */ function pack(uint32 valueBefore, uint32 valueAfter, uint48 effect) internal pure returns (Delay) { return Delay.wrap((uint112(effect) << 64) | (uint112(valueBefore) << 32) | uint112(valueAfter)); } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity 0.8.25; interface IVaultStorage { error InvalidTimestamp(); error NoPreviousEpoch(); /** * @notice Get a deposit whitelist enabler/disabler's role. * @return identifier of the whitelist enabler/disabler role */ function DEPOSIT_WHITELIST_SET_ROLE() external view returns (bytes32); /** * @notice Get a depositor whitelist status setter's role. * @return identifier of the depositor whitelist status setter role */ function DEPOSITOR_WHITELIST_ROLE() external view returns (bytes32); /** * @notice Get the delegator factory's address. * @return address of the delegator factory */ function DELEGATOR_FACTORY() external view returns (address); /** * @notice Get the slasher factory's address. * @return address of the slasher factory */ function SLASHER_FACTORY() external view returns (address); /** * @notice Get a vault collateral. * @return address of the underlying collateral */ function collateral() external view returns (address); /** * @dev Get a burner to issue debt to (e.g., 0xdEaD or some unwrapper contract). * @return address of the burner */ function burner() external view returns (address); /** * @notice Get a delegator (it delegates the vault's stake to networks and operators). * @return address of the delegator */ function delegator() external view returns (address); /** * @notice Get a slasher (it provides networks a slashing mechanism). * @return address of the slasher */ function slasher() external view returns (address); /** * @notice Get a time point of the epoch duration set. * @return time point of the epoch duration set */ function epochDurationInit() external view returns (uint48); /** * @notice Get a duration of the vault epoch. * @return duration of the epoch */ function epochDuration() external view returns (uint48); /** * @notice Get an epoch at a given timestamp. * @param timestamp time point to get the epoch at * @return epoch at the timestamp * @dev Reverts if the timestamp is less than the start of the epoch 0. */ function epochAt(uint48 timestamp) external view returns (uint256); /** * @notice Get a current vault epoch. * @return current epoch */ function currentEpoch() external view returns (uint256); /** * @notice Get a start of the current vault epoch. * @return start of the current epoch */ function currentEpochStart() external view returns (uint48); /** * @notice Get a start of the previous vault epoch. * @return start of the previous epoch * @dev Reverts if the current epoch is 0. */ function previousEpochStart() external view returns (uint48); /** * @notice Get a start of the next vault epoch. * @return start of the next epoch */ function nextEpochStart() external view returns (uint48); /** * @notice Get if the deposit whitelist is enabled. * @return if the deposit whitelist is enabled */ function depositWhitelist() external view returns (bool); /** * @notice Get if a given account is whitelisted as a depositor. * @param account address to check * @return if the account is whitelisted as a depositor */ function isDepositorWhitelisted(address account) external view returns (bool); /** * @notice Get a total number of active shares in the vault at a given timestamp using a hint. * @param timestamp time point to get the total number of active shares at * @param hint hint for the checkpoint index * @return total number of active shares at the timestamp */ function activeSharesAt(uint48 timestamp, bytes memory hint) external view returns (uint256); /** * @notice Get a total number of active shares in the vault. * @return total number of active shares */ function activeShares() external view returns (uint256); /** * @notice Get a total amount of active stake in the vault at a given timestamp using a hint. * @param timestamp time point to get the total active stake at * @param hint hint for the checkpoint index * @return total amount of active stake at the timestamp */ function activeStakeAt(uint48 timestamp, bytes memory hint) external view returns (uint256); /** * @notice Get a total amount of active stake in the vault. * @return total amount of active stake */ function activeStake() external view returns (uint256); /** * @notice Get a total number of active shares for a particular account at a given timestamp using a hint. * @param account account to get the number of active shares for * @param timestamp time point to get the number of active shares for the account at * @param hint hint for the checkpoint index * @return number of active shares for the account at the timestamp */ function activeSharesOfAt(address account, uint48 timestamp, bytes memory hint) external view returns (uint256); /** * @notice Get a number of active shares for a particular account. * @param account account to get the number of active shares for * @return number of active shares for the account */ function activeSharesOf(address account) external view returns (uint256); /** * @notice Get a total amount of the withdrawals at a given epoch. * @param epoch epoch to get the total amount of the withdrawals at * @return total amount of the withdrawals at the epoch */ function withdrawals(uint256 epoch) external view returns (uint256); /** * @notice Get a total number of withdrawal shares at a given epoch. * @param epoch epoch to get the total number of withdrawal shares at * @return total number of withdrawal shares at the epoch */ function withdrawalShares(uint256 epoch) external view returns (uint256); /** * @notice Get a number of withdrawal shares for a particular account at a given epoch (zero if claimed). * @param epoch epoch to get the number of withdrawal shares for the account at * @param account account to get the number of withdrawal shares for * @return number of withdrawal shares for the account at the epoch */ function withdrawalSharesOf(uint256 epoch, address account) external view returns (uint256); /** * @notice Get if the withdrawals are claimed for a particular account at a given epoch. * @param epoch epoch to check the withdrawals for the account at * @param account account to check the withdrawals for * @return if the withdrawals are claimed for the account at the epoch */ function isWithdrawalsClaimed(uint256 epoch, address account) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/IAccessControl.sol) pragma solidity ^0.8.20; /** * @dev External interface of AccessControl declared to support ERC165 detection. */ interface IAccessControl { /** * @dev The `account` is missing a role. */ error AccessControlUnauthorizedAccount(address account, bytes32 neededRole); /** * @dev The caller of a function is not the expected one. * * NOTE: Don't confuse with {AccessControlUnauthorizedAccount}. */ error AccessControlBadConfirmation(); /** * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. */ event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {AccessControl-_setupRole}. */ event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) */ event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) external view returns (bool); /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) external view returns (bytes32); /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) external; /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) external; /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `callerConfirmation`. */ function renounceRole(bytes32 role, address callerConfirmation) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol) pragma solidity ^0.8.20; import {Initializable} from "../proxy/utils/Initializable.sol"; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract ContextUpgradeable is Initializable { function __Context_init() internal onlyInitializing { } function __Context_init_unchained() internal onlyInitializing { } function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/ERC165.sol) pragma solidity ^0.8.20; import {IERC165} from "@openzeppelin/contracts/utils/introspection/IERC165.sol"; import {Initializable} from "../../proxy/utils/Initializable.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` */ abstract contract ERC165Upgradeable is Initializable, IERC165 { function __ERC165_init() internal onlyInitializing { } function __ERC165_init_unchained() internal onlyInitializing { } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol) pragma solidity ^0.8.20; /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in * case an upgrade adds a module that needs to be initialized. * * For example: * * [.hljs-theme-light.nopadding] * ```solidity * contract MyToken is ERC20Upgradeable { * function initialize() initializer public { * __ERC20_init("MyToken", "MTK"); * } * } * * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable { * function initializeV2() reinitializer(2) public { * __ERC20Permit_init("MyToken"); * } * } * ``` * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. * * [CAUTION] * ==== * Avoid leaving a contract uninitialized. * * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed: * * [.hljs-theme-light.nopadding] * ``` * /// @custom:oz-upgrades-unsafe-allow constructor * constructor() { * _disableInitializers(); * } * ``` * ==== */ abstract contract Initializable { /** * @dev Storage of the initializable contract. * * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions * when using with upgradeable contracts. * * @custom:storage-location erc7201:openzeppelin.storage.Initializable */ struct InitializableStorage { /** * @dev Indicates that the contract has been initialized. */ uint64 _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool _initializing; } // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff)) bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00; /** * @dev The contract is already initialized. */ error InvalidInitialization(); /** * @dev The contract is not initializing. */ error NotInitializing(); /** * @dev Triggered when the contract has been initialized or reinitialized. */ event Initialized(uint64 version); /** * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope, * `onlyInitializing` functions can be used to initialize parent contracts. * * Similar to `reinitializer(1)`, except that in the context of a constructor an `initializer` may be invoked any * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in * production. * * Emits an {Initialized} event. */ modifier initializer() { // solhint-disable-next-line var-name-mixedcase InitializableStorage storage $ = _getInitializableStorage(); // Cache values to avoid duplicated sloads bool isTopLevelCall = !$._initializing; uint64 initialized = $._initialized; // Allowed calls: // - initialSetup: the contract is not in the initializing state and no previous version was // initialized // - construction: the contract is initialized at version 1 (no reininitialization) and the // current contract is just being deployed bool initialSetup = initialized == 0 && isTopLevelCall; bool construction = initialized == 1 && address(this).code.length == 0; if (!initialSetup && !construction) { revert InvalidInitialization(); } $._initialized = 1; if (isTopLevelCall) { $._initializing = true; } _; if (isTopLevelCall) { $._initializing = false; emit Initialized(1); } } /** * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be * used to initialize parent contracts. * * A reinitializer may be used after the original initialization step. This is essential to configure modules that * are added through upgrades and that require initialization. * * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer` * cannot be nested. If one is invoked in the context of another, execution will revert. * * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in * a contract, executing them in the right order is up to the developer or operator. * * WARNING: Setting the version to 2**64 - 1 will prevent any future reinitialization. * * Emits an {Initialized} event. */ modifier reinitializer(uint64 version) { // solhint-disable-next-line var-name-mixedcase InitializableStorage storage $ = _getInitializableStorage(); if ($._initializing || $._initialized >= version) { revert InvalidInitialization(); } $._initialized = version; $._initializing = true; _; $._initializing = false; emit Initialized(version); } /** * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the * {initializer} and {reinitializer} modifiers, directly or indirectly. */ modifier onlyInitializing() { _checkInitializing(); _; } /** * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}. */ function _checkInitializing() internal view virtual { if (!_isInitializing()) { revert NotInitializing(); } } /** * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call. * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized * to any version. It is recommended to use this to lock implementation contracts that are designed to be called * through proxies. * * Emits an {Initialized} event the first time it is successfully executed. */ function _disableInitializers() internal virtual { // solhint-disable-next-line var-name-mixedcase InitializableStorage storage $ = _getInitializableStorage(); if ($._initializing) { revert InvalidInitialization(); } if ($._initialized != type(uint64).max) { $._initialized = type(uint64).max; emit Initialized(type(uint64).max); } } /** * @dev Returns the highest version that has been initialized. See {reinitializer}. */ function _getInitializedVersion() internal view returns (uint64) { return _getInitializableStorage()._initialized; } /** * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}. */ function _isInitializing() internal view returns (bool) { return _getInitializableStorage()._initializing; } /** * @dev Returns a pointer to the storage namespace. */ // solhint-disable-next-line var-name-mixedcase function _getInitializableStorage() private pure returns (InitializableStorage storage $) { assembly { $.slot := INITIALIZABLE_STORAGE } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol) pragma solidity ^0.8.20; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev The ETH balance of the account is not enough to perform the operation. */ error AddressInsufficientBalance(address account); /** * @dev There's no code at `target` (it is not a contract). */ error AddressEmptyCode(address target); /** * @dev A call to an address target failed. The target may have reverted. */ error FailedInnerCall(); /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { if (address(this).balance < amount) { revert AddressInsufficientBalance(address(this)); } (bool success, ) = recipient.call{value: amount}(""); if (!success) { revert FailedInnerCall(); } } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason or custom error, it is bubbled * up by this function (like regular Solidity function calls). However, if * the call reverted with no returned reason, this function reverts with a * {FailedInnerCall} error. * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { if (address(this).balance < value) { revert AddressInsufficientBalance(address(this)); } (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an * unsuccessful call. */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata ) internal view returns (bytes memory) { if (!success) { _revert(returndata); } else { // only check if target is a contract if the call was successful and the return data is empty // otherwise we already know that it was a contract if (returndata.length == 0 && target.code.length == 0) { revert AddressEmptyCode(target); } return returndata; } } /** * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the * revert reason or with a default {FailedInnerCall} error. */ function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) { if (!success) { _revert(returndata); } else { return returndata; } } /** * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}. */ function _revert(bytes memory returndata) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert FailedInnerCall(); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol) pragma solidity ^0.8.20; /** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. * * ==== Security Considerations * * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be * considered as an intention to spend the allowance in any specific way. The second is that because permits have * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be * generally recommended is: * * ```solidity * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public { * try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {} * doThing(..., value); * } * * function doThing(..., uint256 value) public { * token.safeTransferFrom(msg.sender, address(this), value); * ... * } * ``` * * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also * {SafeERC20-safeTransferFrom}). * * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so * contracts should have entry points that don't rely on permit. */ interface IERC20Permit { /** * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens, * given ``owner``'s signed approval. * * IMPORTANT: The same issues {IERC20-approve} has related to transaction * ordering also apply here. * * Emits an {Approval} event. * * Requirements: * * - `spender` cannot be the zero address. * - `deadline` must be a timestamp in the future. * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` * over the EIP712-formatted function arguments. * - the signature must use ``owner``'s current nonce (see {nonces}). * * For more information on the signature format, see the * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP * section]. * * CAUTION: See Security Considerations above. */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; /** * @dev Returns the current nonce for `owner`. This value must be * included whenever a signature is generated for {permit}. * * Every successful call to {permit} increases ``owner``'s nonce by one. This * prevents a signature from being used multiple times. */ function nonces(address owner) external view returns (uint256); /** * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SafeCast.sol) // This file was procedurally generated from scripts/generate/templates/SafeCast.js. pragma solidity ^0.8.20; /** * @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. */ library SafeCast { /** * @dev Value doesn't fit in an uint of `bits` size. */ error SafeCastOverflowedUintDowncast(uint8 bits, uint256 value); /** * @dev An int value doesn't fit in an uint of `bits` size. */ error SafeCastOverflowedIntToUint(int256 value); /** * @dev Value doesn't fit in an int of `bits` size. */ error SafeCastOverflowedIntDowncast(uint8 bits, int256 value); /** * @dev An uint value doesn't fit in an int of `bits` size. */ error SafeCastOverflowedUintToInt(uint256 value); /** * @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 */ function toUint248(uint256 value) internal pure returns (uint248) { if (value > type(uint248).max) { revert SafeCastOverflowedUintDowncast(248, value); } 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 */ function toUint240(uint256 value) internal pure returns (uint240) { if (value > type(uint240).max) { revert SafeCastOverflowedUintDowncast(240, value); } 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 */ function toUint232(uint256 value) internal pure returns (uint232) { if (value > type(uint232).max) { revert SafeCastOverflowedUintDowncast(232, value); } 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 */ function toUint224(uint256 value) internal pure returns (uint224) { if (value > type(uint224).max) { revert SafeCastOverflowedUintDowncast(224, value); } 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 */ function toUint216(uint256 value) internal pure returns (uint216) { if (value > type(uint216).max) { revert SafeCastOverflowedUintDowncast(216, value); } 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 */ function toUint208(uint256 value) internal pure returns (uint208) { if (value > type(uint208).max) { revert SafeCastOverflowedUintDowncast(208, value); } 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 */ function toUint200(uint256 value) internal pure returns (uint200) { if (value > type(uint200).max) { revert SafeCastOverflowedUintDowncast(200, value); } 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 */ function toUint192(uint256 value) internal pure returns (uint192) { if (value > type(uint192).max) { revert SafeCastOverflowedUintDowncast(192, value); } 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 */ function toUint184(uint256 value) internal pure returns (uint184) { if (value > type(uint184).max) { revert SafeCastOverflowedUintDowncast(184, value); } 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 */ function toUint176(uint256 value) internal pure returns (uint176) { if (value > type(uint176).max) { revert SafeCastOverflowedUintDowncast(176, value); } 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 */ function toUint168(uint256 value) internal pure returns (uint168) { if (value > type(uint168).max) { revert SafeCastOverflowedUintDowncast(168, value); } 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 */ function toUint160(uint256 value) internal pure returns (uint160) { if (value > type(uint160).max) { revert SafeCastOverflowedUintDowncast(160, value); } 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 */ function toUint152(uint256 value) internal pure returns (uint152) { if (value > type(uint152).max) { revert SafeCastOverflowedUintDowncast(152, value); } 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 */ function toUint144(uint256 value) internal pure returns (uint144) { if (value > type(uint144).max) { revert SafeCastOverflowedUintDowncast(144, value); } 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 */ function toUint136(uint256 value) internal pure returns (uint136) { if (value > type(uint136).max) { revert SafeCastOverflowedUintDowncast(136, value); } 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 */ function toUint128(uint256 value) internal pure returns (uint128) { if (value > type(uint128).max) { revert SafeCastOverflowedUintDowncast(128, value); } 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 */ function toUint120(uint256 value) internal pure returns (uint120) { if (value > type(uint120).max) { revert SafeCastOverflowedUintDowncast(120, value); } 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 */ function toUint112(uint256 value) internal pure returns (uint112) { if (value > type(uint112).max) { revert SafeCastOverflowedUintDowncast(112, value); } 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 */ function toUint104(uint256 value) internal pure returns (uint104) { if (value > type(uint104).max) { revert SafeCastOverflowedUintDowncast(104, value); } 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 */ function toUint96(uint256 value) internal pure returns (uint96) { if (value > type(uint96).max) { revert SafeCastOverflowedUintDowncast(96, value); } 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 */ function toUint88(uint256 value) internal pure returns (uint88) { if (value > type(uint88).max) { revert SafeCastOverflowedUintDowncast(88, value); } 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 */ function toUint80(uint256 value) internal pure returns (uint80) { if (value > type(uint80).max) { revert SafeCastOverflowedUintDowncast(80, value); } 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 */ function toUint72(uint256 value) internal pure returns (uint72) { if (value > type(uint72).max) { revert SafeCastOverflowedUintDowncast(72, value); } 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 */ function toUint64(uint256 value) internal pure returns (uint64) { if (value > type(uint64).max) { revert SafeCastOverflowedUintDowncast(64, value); } 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 */ function toUint56(uint256 value) internal pure returns (uint56) { if (value > type(uint56).max) { revert SafeCastOverflowedUintDowncast(56, value); } 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 */ function toUint48(uint256 value) internal pure returns (uint48) { if (value > type(uint48).max) { revert SafeCastOverflowedUintDowncast(48, value); } 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 */ function toUint40(uint256 value) internal pure returns (uint40) { if (value > type(uint40).max) { revert SafeCastOverflowedUintDowncast(40, value); } 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 */ function toUint32(uint256 value) internal pure returns (uint32) { if (value > type(uint32).max) { revert SafeCastOverflowedUintDowncast(32, value); } 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 */ function toUint24(uint256 value) internal pure returns (uint24) { if (value > type(uint24).max) { revert SafeCastOverflowedUintDowncast(24, value); } 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 */ function toUint16(uint256 value) internal pure returns (uint16) { if (value > type(uint16).max) { revert SafeCastOverflowedUintDowncast(16, value); } return uint16(value); } /** * @dev Returns the downcasted uint8 from uint256, reverting on * overflow (when the input is greater than largest uint8). * * Counterpart to Solidity's `uint8` operator. * * Requirements: * * - input must fit into 8 bits */ function toUint8(uint256 value) internal pure returns (uint8) { if (value > type(uint8).max) { revert SafeCastOverflowedUintDowncast(8, value); } return uint8(value); } /** * @dev Converts a signed int256 into an unsigned uint256. * * Requirements: * * - input must be greater than or equal to 0. */ function toUint256(int256 value) internal pure returns (uint256) { if (value < 0) { revert SafeCastOverflowedIntToUint(value); } 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 */ function toInt248(int256 value) internal pure returns (int248 downcasted) { downcasted = int248(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(248, value); } } /** * @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 */ function toInt240(int256 value) internal pure returns (int240 downcasted) { downcasted = int240(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(240, value); } } /** * @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 */ function toInt232(int256 value) internal pure returns (int232 downcasted) { downcasted = int232(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(232, value); } } /** * @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 */ function toInt224(int256 value) internal pure returns (int224 downcasted) { downcasted = int224(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(224, value); } } /** * @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 */ function toInt216(int256 value) internal pure returns (int216 downcasted) { downcasted = int216(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(216, value); } } /** * @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 */ function toInt208(int256 value) internal pure returns (int208 downcasted) { downcasted = int208(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(208, value); } } /** * @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 */ function toInt200(int256 value) internal pure returns (int200 downcasted) { downcasted = int200(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(200, value); } } /** * @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 */ function toInt192(int256 value) internal pure returns (int192 downcasted) { downcasted = int192(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(192, value); } } /** * @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 */ function toInt184(int256 value) internal pure returns (int184 downcasted) { downcasted = int184(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(184, value); } } /** * @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 */ function toInt176(int256 value) internal pure returns (int176 downcasted) { downcasted = int176(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(176, value); } } /** * @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 */ function toInt168(int256 value) internal pure returns (int168 downcasted) { downcasted = int168(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(168, value); } } /** * @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 */ function toInt160(int256 value) internal pure returns (int160 downcasted) { downcasted = int160(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(160, value); } } /** * @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 */ function toInt152(int256 value) internal pure returns (int152 downcasted) { downcasted = int152(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(152, value); } } /** * @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 */ function toInt144(int256 value) internal pure returns (int144 downcasted) { downcasted = int144(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(144, value); } } /** * @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 */ function toInt136(int256 value) internal pure returns (int136 downcasted) { downcasted = int136(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(136, value); } } /** * @dev Returns the downcasted int128 from int256, reverting on * overflow (when the input is less than smallest int128 or * greater than largest int128). * * Counterpart to Solidity's `int128` operator. * * Requirements: * * - input must fit into 128 bits */ function toInt128(int256 value) internal pure returns (int128 downcasted) { downcasted = int128(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(128, value); } } /** * @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 */ function toInt120(int256 value) internal pure returns (int120 downcasted) { downcasted = int120(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(120, value); } } /** * @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 */ function toInt112(int256 value) internal pure returns (int112 downcasted) { downcasted = int112(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(112, value); } } /** * @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 */ function toInt104(int256 value) internal pure returns (int104 downcasted) { downcasted = int104(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(104, value); } } /** * @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 */ function toInt96(int256 value) internal pure returns (int96 downcasted) { downcasted = int96(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(96, value); } } /** * @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 */ function toInt88(int256 value) internal pure returns (int88 downcasted) { downcasted = int88(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(88, value); } } /** * @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 */ function toInt80(int256 value) internal pure returns (int80 downcasted) { downcasted = int80(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(80, value); } } /** * @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 */ function toInt72(int256 value) internal pure returns (int72 downcasted) { downcasted = int72(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(72, value); } } /** * @dev Returns the downcasted int64 from int256, reverting on * overflow (when the input is less than smallest int64 or * greater than largest int64). * * Counterpart to Solidity's `int64` operator. * * Requirements: * * - input must fit into 64 bits */ function toInt64(int256 value) internal pure returns (int64 downcasted) { downcasted = int64(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(64, value); } } /** * @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 */ function toInt56(int256 value) internal pure returns (int56 downcasted) { downcasted = int56(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(56, value); } } /** * @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 */ function toInt48(int256 value) internal pure returns (int48 downcasted) { downcasted = int48(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(48, value); } } /** * @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 */ function toInt40(int256 value) internal pure returns (int40 downcasted) { downcasted = int40(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(40, value); } } /** * @dev Returns the downcasted int32 from int256, reverting on * overflow (when the input is less than smallest int32 or * greater than largest int32). * * Counterpart to Solidity's `int32` operator. * * Requirements: * * - input must fit into 32 bits */ function toInt32(int256 value) internal pure returns (int32 downcasted) { downcasted = int32(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(32, value); } } /** * @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 */ function toInt24(int256 value) internal pure returns (int24 downcasted) { downcasted = int24(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(24, value); } } /** * @dev Returns the downcasted int16 from int256, reverting on * overflow (when the input is less than smallest int16 or * greater than largest int16). * * Counterpart to Solidity's `int16` operator. * * Requirements: * * - input must fit into 16 bits */ function toInt16(int256 value) internal pure returns (int16 downcasted) { downcasted = int16(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(16, value); } } /** * @dev Returns the downcasted int8 from int256, reverting on * overflow (when the input is less than smallest int8 or * greater than largest int8). * * Counterpart to Solidity's `int8` operator. * * Requirements: * * - input must fit into 8 bits */ function toInt8(int256 value) internal pure returns (int8 downcasted) { downcasted = int8(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(8, value); } } /** * @dev Converts an unsigned uint256 into a signed int256. * * Requirements: * * - input must be less than or equal to maxInt256. */ function toInt256(uint256 value) internal pure returns (int256) { // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive if (value > uint256(type(int256).max)) { revert SafeCastOverflowedUintToInt(value); } return int256(value); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol) pragma solidity ^0.8.20; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
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[{"inputs":[{"internalType":"address","name":"vaultFactory","type":"address"},{"internalType":"address","name":"networkRegistry","type":"address"},{"internalType":"address","name":"networkMiddlewareService","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AccessControlBadConfirmation","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"bytes32","name":"neededRole","type":"bytes32"}],"name":"AccessControlUnauthorizedAccount","type":"error"},{"inputs":[{"internalType":"address","name":"target","type":"address"}],"name":"AddressEmptyCode","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"AddressInsufficientBalance","type":"error"},{"inputs":[],"name":"AlreadySet","type":"error"},{"inputs":[],"name":"FailedInnerCall","type":"error"},{"inputs":[],"name":"HighAdminFee","type":"error"},{"inputs":[],"name":"InsufficientAdminFee","type":"error"},{"inputs":[],"name":"InsufficientReward","type":"error"},{"inputs":[],"name":"InvalidAdminFee","type":"error"},{"inputs":[],"name":"InvalidHintsLength","type":"error"},{"inputs":[],"name":"InvalidInitialization","type":"error"},{"inputs":[],"name":"InvalidRecipient","type":"error"},{"inputs":[],"name":"InvalidRewardTimestamp","type":"error"},{"inputs":[],"name":"MathOverflowedMulDiv","type":"error"},{"inputs":[],"name":"MissingRoles","type":"error"},{"inputs":[],"name":"NoRewardsToClaim","type":"error"},{"inputs":[],"name":"NotInitializing","type":"error"},{"inputs":[],"name":"NotNetwork","type":"error"},{"inputs":[],"name":"NotNetworkMiddleware","type":"error"},{"inputs":[],"name":"NotVault","type":"error"},{"inputs":[],"name":"ReentrancyGuardReentrantCall","type":"error"},{"inputs":[{"internalType":"uint8","name":"bits","type":"uint8"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"SafeCastOverflowedUintDowncast","type":"error"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"SafeERC20FailedOperation","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"ClaimAdminFee","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"token","type":"address"},{"indexed":true,"internalType":"address","name":"network","type":"address"},{"indexed":true,"internalType":"address","name":"claimer","type":"address"},{"indexed":false,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"firstRewardIndex","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"numRewards","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"ClaimRewards","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"network","type":"address"},{"indexed":true,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"DistributeRewards","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint64","name":"version","type":"uint64"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"adminFee","type":"uint256"}],"name":"SetAdminFee","type":"event"},{"inputs":[],"name":"ADMIN_FEE_BASE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ADMIN_FEE_CLAIM_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ADMIN_FEE_SET_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"NETWORK_MIDDLEWARE_SERVICE","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"NETWORK_REGISTRY","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"VAULT","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"VAULT_FACTORY","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"adminFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"address","name":"token","type":"address"}],"name":"claimAdminFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"address","name":"token","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"claimRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"account","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"claimable","outputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"claimableAdminFee","outputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"network","type":"address"},{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"distributeRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"vault","type":"address"},{"internalType":"uint256","name":"adminFee","type":"uint256"},{"internalType":"address","name":"defaultAdminRoleHolder","type":"address"},{"internalType":"address","name":"adminFeeClaimRoleHolder","type":"address"},{"internalType":"address","name":"adminFeeSetRoleHolder","type":"address"}],"internalType":"struct IDefaultStakerRewards.InitParams","name":"params","type":"tuple"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"network","type":"address"}],"name":"lastUnclaimedReward","outputs":[{"internalType":"uint256","name":"rewardIndex","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes[]","name":"data","type":"bytes[]"}],"name":"multicall","outputs":[{"internalType":"bytes[]","name":"results","type":"bytes[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"callerConfirmation","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"network","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"rewards","outputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint48","name":"timestamp","type":"uint48"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"network","type":"address"}],"name":"rewardsLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"adminFee_","type":"uint256"}],"name":"setAdminFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"version","outputs":[{"internalType":"uint64","name":"","type":"uint64"}],"stateMutability":"view","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000005035c15f3cb4364cf2cf35ca53e3d6fc45fc88990000000000000000000000005dea088d2be1473d948895cc26104bcf103cef3e00000000000000000000000070818a53dde5c2e78edfb6f6b277be9a71fa894e
-----Decoded View---------------
Arg [0] : vaultFactory (address): 0x5035c15F3cb4364CF2cF35ca53E3d6FC45FC8899
Arg [1] : networkRegistry (address): 0x5dEA088d2Be1473d948895cc26104bcf103CEf3E
Arg [2] : networkMiddlewareService (address): 0x70818a53ddE5c2e78Edfb6f6b277Be9a71fa894E
-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 0000000000000000000000005035c15f3cb4364cf2cf35ca53e3d6fc45fc8899
Arg [1] : 0000000000000000000000005dea088d2be1473d948895cc26104bcf103cef3e
Arg [2] : 00000000000000000000000070818a53dde5c2e78edfb6f6b277be9a71fa894e
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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.