{"file_path":"contracts/FeedVerifier.sol","creation_status":"success","source_code":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.20;\n\nimport {Common} from \"@chainlink/contracts/src/v0.8/llo-feeds/libraries/Common.sol\";\nimport {IVerifierFeeManager} from \"@chainlink/contracts/src/v0.8/llo-feeds/v0.3.0/interfaces/IVerifierFeeManager.sol\";\nimport {AccessControlUpgradeable} from \"@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol\";\nimport {PausableUpgradeable} from \"@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol\";\nimport {UUPSUpgradeable} from \"@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol\";\nimport {Initializable} from \"@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol\";\n\n/**\n * @title FeedVerifier\n * @notice Onchain verifier for Chainlink Data Streams Schema v7 (Redemption Rates).\n *\n * @dev UUPS upgradeable. Supports single and bulk report verification. Stores the\n * latest price per feedId so multiple StakingVaults can share one contract.\n *\n * Based on Chainlink's official ClientReportsVerifier example:\n * https://docs.chain.link/data-streams/tutorials/evm-onchain-report-verification\n *\n * Sepolia Verifier Proxy: 0x4e9935be37302B9C97Ff4ae6868F1b566ade26d2\n */\n\n// ─────────────────────────────────────────────────────────────────────────────\n// Interfaces\n// ─────────────────────────────────────────────────────────────────────────────\n\ninterface IVerifierProxy {\n function verify(\n bytes calldata payload,\n bytes calldata parameterPayload\n ) external payable returns (bytes memory verifierResponse);\n\n function verifyBulk(\n bytes[] calldata payloads,\n bytes calldata parameterPayload\n ) external payable returns (bytes[] memory verifiedReports);\n\n function s_feeManager() external view returns (IVerifierFeeManager);\n}\n\ninterface IFeeManager {\n function getFeeAndReward(\n address subscriber,\n bytes memory unverifiedReport,\n address quoteAddress\n ) external returns (Common.Asset memory, Common.Asset memory, uint256);\n\n function i_nativeAddress() external view returns (address);\n}\n\n// ─────────────────────────────────────────────────────────────────────────────\n// Contract\n// ─────────────────────────────────────────────────────────────────────────────\n\ncontract FeedVerifier is\n Initializable,\n AccessControlUpgradeable,\n PausableUpgradeable,\n UUPSUpgradeable\n{\n bytes32 public constant PAUSER_ROLE = keccak256(\"PAUSER_ROLE\");\n bytes32 public constant UPGRADER_ROLE = keccak256(\"UPGRADER_ROLE\");\n bytes32 public constant UPDATER_ROLE = keccak256(\"UPDATER_ROLE\");\n\n // ── Schema v7 (Redemption Rates) ─────────────────────────────────────────\n struct ReportV7 {\n bytes32 feedId;\n uint32 validFromTimestamp;\n uint32 observationsTimestamp;\n uint192 nativeFee; // from Chainlink schema — not used directly but required for abi.decode offset alignment\n uint192 linkFee; // from Chainlink schema — not used directly but required for abi.decode offset alignment\n uint32 expiresAt;\n int192 price; // exchange rate, scaled 1e18\n }\n\n // ── Errors ────────────────────────────────────────────────────────────────\n error InvalidReportVersion(uint16 version);\n error NothingToWithdraw();\n error StaleReport(uint32 newTimestamp, uint32 storedTimestamp);\n error ExpiredReport(uint32 expiresAt, uint32 currentTime);\n error ReportNotYetValid(uint32 validFromTimestamp, uint32 currentTime);\n error StalePrice(bytes32 feedId, uint32 lastTimestamp, uint32 currentTime);\n error PriceNotInitialized(bytes32 feedId);\n error ZeroPriceInReport(bytes32 feedId);\n error ZeroAddress();\n error InvalidFeedId(bytes32 expected, bytes32 actual);\n\n // ── Events ────────────────────────────────────────────────────────────────\n event DecodedPrice(\n bytes32 indexed feedId,\n int192 price,\n uint32 observationsTimestamp\n );\n event FeedIdUpdated(bytes32 indexed oldFeedId, bytes32 indexed newFeedId);\n event MaxStalenessUpdated(uint32 oldMaxStaleness, uint32 newMaxStaleness);\n event MaxStalenessByFeedUpdated(bytes32 indexed feedId, uint32 oldMaxStaleness, uint32 newMaxStaleness);\n event EthWithdrawn(address indexed beneficiary, uint256 amount);\n\n // ── State ─────────────────────────────────────────────────────────────────\n IVerifierProxy public verifierProxy;\n\n /// @notice Latest verified price per feedId (1e18 scaled int192).\n mapping(bytes32 => int192) public priceByFeed;\n\n /// @notice Latest observation timestamp per feedId.\n mapping(bytes32 => uint32) public timestampByFeed;\n\n /// @notice Most recently updated feedId (convenience for single-feed setups).\n bytes32 public lastFeedId;\n\n /// @notice When non-zero, only reports with this feedId are accepted.\n bytes32 public allowedFeedId;\n\n /// @notice Default maximum age (seconds) applied to all feeds without an explicit override.\n /// Defaults to 3600 (1 h). Set to 0 to disable default enforcement.\n uint32 public defaultMaxStaleness;\n\n /// @notice Per-feed staleness override. When non-zero, takes precedence over defaultMaxStaleness.\n mapping(bytes32 => uint32) public maxStalenessByFeed;\n\n // slither-disable-next-line unused-state\n uint256[42] private __gap;\n\n // Occupies the last slot of the original __gap[44] — storage footprint unchanged,\n // safe for upgrading an existing proxy. OZ v4 ReentrancyGuardUpgradeable cannot be\n // added here because: (1) Chainlink llo-feeds pins @openzeppelin/contracts@4.8.3\n // via versioned imports, making a v5 mix unsafe in the same compilation unit;\n // (2) adding it to an existing proxy would shift storage layout in OZ v4.\n uint256 private _reentrancyStatus; // 0/1 = not entered, 2 = entered\n\n modifier nonReentrant() {\n require(_reentrancyStatus != 2, \"ReentrancyGuard: reentrant call\");\n _reentrancyStatus = 2;\n _;\n _reentrancyStatus = 1;\n }\n\n // ── Constructor / Initializer ─────────────────────────────────────────────\n\n /// @custom:oz-upgrades-unsafe-allow constructor\n constructor() {\n _disableInitializers();\n }\n\n /**\n * @param admin_ Address that receives DEFAULT_ADMIN_ROLE, PAUSER_ROLE, UPGRADER_ROLE.\n * @param updater_ Bot address that receives UPDATER_ROLE (may equal admin_ on testnets).\n * @param verifierProxy_ Chainlink VerifierProxy address for this network.\n * @param feedId_ Enforced feedId. Pass bytes32(0) to leave unenforced (migrate via initializeV2 later).\n */\n function initialize(address admin_, address updater_, address verifierProxy_, bytes32 feedId_) external initializer {\n _initializeCore(admin_, updater_, verifierProxy_);\n if (feedId_ != bytes32(0)) _setAllowedFeedId(feedId_);\n }\n\n /// @dev Shared setup extracted so FeedVerifierV1 mock can call it without the feedId param.\n function _initializeCore(address admin_, address updater_, address verifierProxy_) internal {\n if (admin_ == address(0) || updater_ == address(0) || verifierProxy_ == address(0)) revert ZeroAddress();\n __AccessControl_init();\n __Pausable_init();\n __UUPSUpgradeable_init();\n _grantRole(DEFAULT_ADMIN_ROLE, admin_);\n _grantRole(PAUSER_ROLE, admin_);\n _grantRole(UPGRADER_ROLE, admin_);\n _grantRole(UPDATER_ROLE, updater_);\n verifierProxy = IVerifierProxy(verifierProxy_);\n defaultMaxStaleness = 3600; // 1 h default; matches Solana vault-stake price_max_staleness\n }\n\n // ── Core ──────────────────────────────────────────────────────────────────\n\n /**\n * @notice Update the enforced feedId (e.g. during a scheduled feed rotation).\n * @dev Set to bytes32(0) to disable enforcement.\n */\n function setAllowedFeedId(bytes32 feedId_) external onlyRole(DEFAULT_ADMIN_ROLE) {\n _setAllowedFeedId(feedId_);\n }\n\n /**\n * @notice Set the default maximum age (seconds) applied to all feeds without a per-feed override.\n * @dev Default is 3600 (1 h). Setting to 0 disables staleness enforcement for feeds\n * that have no per-feed override configured via setMaxStalenessByFeed().\n */\n function setMaxStaleness(uint32 maxStaleness_) external onlyRole(DEFAULT_ADMIN_ROLE) {\n emit MaxStalenessUpdated(defaultMaxStaleness, maxStaleness_);\n defaultMaxStaleness = maxStaleness_;\n }\n\n /**\n * @notice Set a per-feed staleness override for a specific feedId.\n * @dev When non-zero, this takes precedence over defaultMaxStaleness for that feed.\n * Set to 0 to remove the override and fall back to defaultMaxStaleness.\n */\n function setMaxStalenessByFeed(bytes32 feedId, uint32 maxStaleness_) external onlyRole(DEFAULT_ADMIN_ROLE) {\n emit MaxStalenessByFeedUpdated(feedId, maxStalenessByFeed[feedId], maxStaleness_);\n maxStalenessByFeed[feedId] = maxStaleness_;\n }\n\n function _setAllowedFeedId(bytes32 feedId_) internal {\n bytes32 old = allowedFeedId;\n allowedFeedId = feedId_;\n emit FeedIdUpdated(old, feedId_);\n }\n\n /**\n * @notice Verify a single Data Streams Schema v7 report onchain.\n * @param unverifiedReport Full payload returned by Chainlink Data Streams API.\n */\n function verifyReport(bytes memory unverifiedReport) external whenNotPaused onlyRole(UPDATER_ROLE) {\n (bytes memory parameterPayload, uint256 nativeFee) = _buildParameterPayload(unverifiedReport);\n bytes memory verified = verifierProxy.verify{value: nativeFee}(unverifiedReport, parameterPayload);\n _storeReport(verified);\n }\n\n /**\n * @notice Verify multiple Data Streams Schema v7 reports in a single call.\n * @dev All reports must use the same fee token (single parameterPayload).\n * Uses VerifierProxy.verifyBulk() for gas efficiency.\n * @param unverifiedReports Array of full payloads from Chainlink Data Streams API.\n */\n function verifyBulkReports(bytes[] calldata unverifiedReports) external whenNotPaused onlyRole(UPDATER_ROLE) {\n if (unverifiedReports.length == 0) return;\n\n (bytes memory parameterPayload, uint256 nativeFee) = _buildParameterPayload(unverifiedReports[0]);\n bytes[] memory verifiedReports = verifierProxy.verifyBulk{value: nativeFee}(unverifiedReports, parameterPayload);\n\n for (uint256 i = 0; i < verifiedReports.length; i++) {\n _storeReport(verifiedReports[i]);\n }\n }\n\n // ── Views ─────────────────────────────────────────────────────────────────\n\n /// @notice Latest verified price for a specific feedId.\n /// @dev Reverts PriceNotInitialized if no report has been stored yet.\n /// Reverts StalePrice if the effective staleness limit is exceeded.\n /// maxStalenessByFeed[feedId] takes precedence over defaultMaxStaleness when non-zero.\n function priceOf(bytes32 feedId) external view returns (int192) {\n uint32 timestamp = timestampByFeed[feedId];\n if (timestamp == 0) revert PriceNotInitialized(feedId);\n uint32 effective = maxStalenessByFeed[feedId] > 0 ? maxStalenessByFeed[feedId] : defaultMaxStaleness;\n if (effective > 0 && block.timestamp - timestamp > effective)\n revert StalePrice(feedId, timestamp, uint32(block.timestamp));\n int192 price = priceByFeed[feedId];\n if (price <= 0) revert ZeroPriceInReport(feedId);\n return price;\n }\n\n /// @notice Latest observation timestamp for a specific feedId.\n function timestampOf(bytes32 feedId) external view returns (uint32) {\n return timestampByFeed[feedId];\n }\n\n // ── Admin ─────────────────────────────────────────────────────────────────\n\n function pause() external onlyRole(PAUSER_ROLE) { _pause(); }\n function unpause() external onlyRole(PAUSER_ROLE) { _unpause(); }\n\n /// @notice Withdraw ETH held by this contract (e.g. unspent verification fees).\n /// @dev .transfer() caps the call at 2300 gas so reentrance is physically impossible;\n /// nonReentrant is added as defence-in-depth in case this is ever changed to .call().\n function withdrawEth(address payable beneficiary) external onlyRole(DEFAULT_ADMIN_ROLE) nonReentrant {\n if (beneficiary == address(0)) revert ZeroAddress();\n uint256 amount = address(this).balance;\n if (amount == 0) revert NothingToWithdraw();\n emit EthWithdrawn(beneficiary, amount);\n beneficiary.transfer(amount);\n }\n\n /// @notice Accept ETH to fund native fee payments on mainnet.\n receive() external payable {}\n\n // ── Internal ──────────────────────────────────────────────────────────────\n\n function _authorizeUpgrade(address newImplementation)\n internal\n override\n onlyRole(UPGRADER_ROLE)\n {}\n\n /**\n * @dev Validates schema version and builds the fee parameterPayload.\n * Returns (empty bytes, 0) when no FeeManager is present (e.g. Sepolia).\n * Returns (abi.encode(nativeToken), nativeFee) on mainnet — caller must forward nativeFee.\n */\n function _buildParameterPayload(bytes memory unverifiedReport) internal returns (bytes memory parameterPayload, uint256 nativeFee) {\n (, bytes memory reportData) = abi.decode(unverifiedReport, (bytes32[3], bytes));\n\n uint16 reportVersion = (uint16(uint8(reportData[0])) << 8) | uint16(uint8(reportData[1]));\n if (reportVersion != 7) revert InvalidReportVersion(reportVersion);\n\n IFeeManager feeManager = IFeeManager(address(verifierProxy.s_feeManager()));\n if (address(feeManager) != address(0)) {\n address nativeToken = feeManager.i_nativeAddress();\n (Common.Asset memory fee,,) = feeManager.getFeeAndReward(address(this), reportData, nativeToken);\n nativeFee = fee.amount;\n parameterPayload = abi.encode(nativeToken);\n }\n // else: no FeeManager (Sepolia) — parameterPayload stays empty, nativeFee stays 0\n }\n\n /**\n * @dev Decodes a verified Schema v7 report and stores price + timestamp per feedId.\n * Reverts on expired or stale reports to prevent overwriting fresh data.\n */\n function _storeReport(bytes memory verified) internal {\n ReportV7 memory report = abi.decode(verified, (ReportV7));\n\n if (allowedFeedId != bytes32(0) && report.feedId != allowedFeedId)\n revert InvalidFeedId(allowedFeedId, report.feedId);\n\n if (block.timestamp < report.validFromTimestamp)\n revert ReportNotYetValid(report.validFromTimestamp, uint32(block.timestamp));\n\n if (block.timestamp > report.expiresAt)\n revert ExpiredReport(report.expiresAt, uint32(block.timestamp));\n\n if (report.observationsTimestamp <= timestampByFeed[report.feedId])\n revert StaleReport(report.observationsTimestamp, timestampByFeed[report.feedId]);\n\n if (report.price <= 0) revert ZeroPriceInReport(report.feedId);\n\n priceByFeed[report.feedId] = report.price;\n timestampByFeed[report.feedId] = report.observationsTimestamp;\n lastFeedId = report.feedId;\n\n emit DecodedPrice(report.feedId, report.price, report.observationsTimestamp);\n }\n}\n","deployed_bytecode":"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SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified\n * proxy whose upgrades are fully controlled by the current implementation.\n */\ninterface IERC1822ProxiableUpgradeable {\n /**\n * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation\n * address.\n *\n * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks\n * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this\n * function revert if invoked through a proxy.\n */\n function proxiableUUID() external view returns (bytes32);\n}\n"},{"file_path":"@openzeppelin/contracts-upgradeable/proxy/ERC1967/ERC1967UpgradeUpgradeable.sol","source_code":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (proxy/ERC1967/ERC1967Upgrade.sol)\n\npragma solidity ^0.8.2;\n\nimport \"../beacon/IBeaconUpgradeable.sol\";\nimport \"../../interfaces/IERC1967Upgradeable.sol\";\nimport \"../../interfaces/draft-IERC1822Upgradeable.sol\";\nimport \"../../utils/AddressUpgradeable.sol\";\nimport \"../../utils/StorageSlotUpgradeable.sol\";\nimport {Initializable} from \"../utils/Initializable.sol\";\n\n/**\n * @dev This abstract contract provides getters and event emitting update functions for\n * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.\n *\n * _Available since v4.1._\n */\nabstract contract ERC1967UpgradeUpgradeable is Initializable, IERC1967Upgradeable {\n // This is the keccak-256 hash of \"eip1967.proxy.rollback\" subtracted by 1\n bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;\n\n /**\n * @dev Storage slot with the address of the current implementation.\n * This is the keccak-256 hash of \"eip1967.proxy.implementation\" subtracted by 1, and is\n * validated in the constructor.\n */\n bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;\n\n function __ERC1967Upgrade_init() internal onlyInitializing {\n }\n\n function __ERC1967Upgrade_init_unchained() internal onlyInitializing {\n }\n /**\n * @dev Returns the current implementation address.\n */\n function _getImplementation() internal view returns (address) {\n return StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value;\n }\n\n /**\n * @dev Stores a new address in the EIP1967 implementation slot.\n */\n function _setImplementation(address newImplementation) private {\n require(AddressUpgradeable.isContract(newImplementation), \"ERC1967: new implementation is not a contract\");\n StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;\n }\n\n /**\n * @dev Perform implementation upgrade\n *\n * Emits an {Upgraded} event.\n */\n function _upgradeTo(address newImplementation) internal {\n _setImplementation(newImplementation);\n emit Upgraded(newImplementation);\n }\n\n /**\n * @dev Perform implementation upgrade with additional setup call.\n *\n * Emits an {Upgraded} event.\n */\n function _upgradeToAndCall(address newImplementation, bytes memory data, bool forceCall) internal {\n _upgradeTo(newImplementation);\n if (data.length > 0 || forceCall) {\n AddressUpgradeable.functionDelegateCall(newImplementation, data);\n }\n }\n\n /**\n * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.\n *\n * Emits an {Upgraded} event.\n */\n function _upgradeToAndCallUUPS(address newImplementation, bytes memory data, bool forceCall) internal {\n // Upgrades from old implementations will perform a rollback test. This test requires the new\n // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing\n // this special case will break upgrade paths from old UUPS implementation to new ones.\n if (StorageSlotUpgradeable.getBooleanSlot(_ROLLBACK_SLOT).value) {\n _setImplementation(newImplementation);\n } else {\n try IERC1822ProxiableUpgradeable(newImplementation).proxiableUUID() returns (bytes32 slot) {\n require(slot == _IMPLEMENTATION_SLOT, \"ERC1967Upgrade: unsupported proxiableUUID\");\n } catch {\n revert(\"ERC1967Upgrade: new implementation is not UUPS\");\n }\n _upgradeToAndCall(newImplementation, data, forceCall);\n }\n }\n\n /**\n * @dev Storage slot with the admin of the contract.\n * This is the keccak-256 hash of \"eip1967.proxy.admin\" subtracted by 1, and is\n * validated in the constructor.\n */\n bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;\n\n /**\n * @dev Returns the current admin.\n */\n function _getAdmin() internal view returns (address) {\n return StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value;\n }\n\n /**\n * @dev Stores a new address in the EIP1967 admin slot.\n */\n function _setAdmin(address newAdmin) private {\n require(newAdmin != address(0), \"ERC1967: new admin is the zero address\");\n StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value = newAdmin;\n }\n\n /**\n * @dev Changes the admin of the proxy.\n *\n * Emits an {AdminChanged} event.\n */\n function _changeAdmin(address newAdmin) internal {\n emit AdminChanged(_getAdmin(), newAdmin);\n _setAdmin(newAdmin);\n }\n\n /**\n * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.\n * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.\n */\n bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;\n\n /**\n * @dev Returns the current beacon.\n */\n function _getBeacon() internal view returns (address) {\n return StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value;\n }\n\n /**\n * @dev Stores a new beacon in the EIP1967 beacon slot.\n */\n function _setBeacon(address newBeacon) private {\n require(AddressUpgradeable.isContract(newBeacon), \"ERC1967: new beacon is not a contract\");\n require(\n AddressUpgradeable.isContract(IBeaconUpgradeable(newBeacon).implementation()),\n \"ERC1967: beacon implementation is not a contract\"\n );\n StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value = newBeacon;\n }\n\n /**\n * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does\n * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).\n *\n * Emits a {BeaconUpgraded} event.\n */\n function _upgradeBeaconToAndCall(address newBeacon, bytes memory data, bool forceCall) internal {\n _setBeacon(newBeacon);\n emit BeaconUpgraded(newBeacon);\n if (data.length > 0 || forceCall) {\n AddressUpgradeable.functionDelegateCall(IBeaconUpgradeable(newBeacon).implementation(), data);\n }\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[50] private __gap;\n}\n"},{"file_path":"@openzeppelin/contracts-upgradeable/proxy/beacon/IBeaconUpgradeable.sol","source_code":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev This is the interface that {BeaconProxy} expects of its beacon.\n */\ninterface IBeaconUpgradeable {\n /**\n * @dev Must return an address that can be used as a delegate call target.\n *\n * {BeaconProxy} will check that this address is a contract.\n */\n function implementation() external view returns (address);\n}\n"},{"file_path":"@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol","source_code":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)\n\npragma solidity ^0.8.2;\n\nimport \"../../utils/AddressUpgradeable.sol\";\n\n/**\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\n * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\n *\n * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be\n * reused. This mechanism prevents re-execution of each \"step\" but allows the creation of new initialization steps in\n * case an upgrade adds a module that needs to be initialized.\n *\n * For example:\n *\n * [.hljs-theme-light.nopadding]\n * ```solidity\n * contract MyToken is ERC20Upgradeable {\n * function initialize() initializer public {\n * __ERC20_init(\"MyToken\", \"MTK\");\n * }\n * }\n *\n * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {\n * function initializeV2() reinitializer(2) public {\n * __ERC20Permit_init(\"MyToken\");\n * }\n * }\n * ```\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n *\n * [CAUTION]\n * ====\n * Avoid leaving a contract uninitialized.\n *\n * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation\n * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke\n * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * /// @custom:oz-upgrades-unsafe-allow constructor\n * constructor() {\n * _disableInitializers();\n * }\n * ```\n * ====\n */\nabstract contract Initializable {\n /**\n * @dev Indicates that the contract has been initialized.\n * @custom:oz-retyped-from bool\n */\n uint8 private _initialized;\n\n /**\n * @dev Indicates that the contract is in the process of being initialized.\n */\n bool private _initializing;\n\n /**\n * @dev Triggered when the contract has been initialized or reinitialized.\n */\n event Initialized(uint8 version);\n\n /**\n * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,\n * `onlyInitializing` functions can be used to initialize parent contracts.\n *\n * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a\n * constructor.\n *\n * Emits an {Initialized} event.\n */\n modifier initializer() {\n bool isTopLevelCall = !_initializing;\n require(\n (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),\n \"Initializable: contract is already initialized\"\n );\n _initialized = 1;\n if (isTopLevelCall) {\n _initializing = true;\n }\n _;\n if (isTopLevelCall) {\n _initializing = false;\n emit Initialized(1);\n }\n }\n\n /**\n * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the\n * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be\n * used to initialize parent contracts.\n *\n * A reinitializer may be used after the original initialization step. This is essential to configure modules that\n * are added through upgrades and that require initialization.\n *\n * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`\n * cannot be nested. If one is invoked in the context of another, execution will revert.\n *\n * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in\n * a contract, executing them in the right order is up to the developer or operator.\n *\n * WARNING: setting the version to 255 will prevent any future reinitialization.\n *\n * Emits an {Initialized} event.\n */\n modifier reinitializer(uint8 version) {\n require(!_initializing && _initialized < version, \"Initializable: contract is already initialized\");\n _initialized = version;\n _initializing = true;\n _;\n _initializing = false;\n emit Initialized(version);\n }\n\n /**\n * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\n * {initializer} and {reinitializer} modifiers, directly or indirectly.\n */\n modifier onlyInitializing() {\n require(_initializing, \"Initializable: contract is not initializing\");\n _;\n }\n\n /**\n * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.\n * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized\n * to any version. It is recommended to use this to lock implementation contracts that are designed to be called\n * through proxies.\n *\n * Emits an {Initialized} event the first time it is successfully executed.\n */\n function _disableInitializers() internal virtual {\n require(!_initializing, \"Initializable: contract is initializing\");\n if (_initialized != type(uint8).max) {\n _initialized = type(uint8).max;\n emit Initialized(type(uint8).max);\n }\n }\n\n /**\n * @dev Returns the highest version that has been initialized. See {reinitializer}.\n */\n function _getInitializedVersion() internal view returns (uint8) {\n return _initialized;\n }\n\n /**\n * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.\n */\n function _isInitializing() internal view returns (bool) {\n return _initializing;\n }\n}\n"},{"file_path":"@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol","source_code":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/UUPSUpgradeable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../interfaces/draft-IERC1822Upgradeable.sol\";\nimport \"../ERC1967/ERC1967UpgradeUpgradeable.sol\";\nimport {Initializable} from \"./Initializable.sol\";\n\n/**\n * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an\n * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.\n *\n * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is\n * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing\n * `UUPSUpgradeable` with a custom implementation of upgrades.\n *\n * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.\n *\n * _Available since v4.1._\n */\nabstract contract UUPSUpgradeable is Initializable, IERC1822ProxiableUpgradeable, ERC1967UpgradeUpgradeable {\n /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment\n address private immutable __self = address(this);\n\n /**\n * @dev Check that the execution is being performed through a delegatecall call and that the execution context is\n * a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case\n * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a\n * function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to\n * fail.\n */\n modifier onlyProxy() {\n require(address(this) != __self, \"Function must be called through delegatecall\");\n require(_getImplementation() == __self, \"Function must be called through active proxy\");\n _;\n }\n\n /**\n * @dev Check that the execution is not being performed through a delegate call. This allows a function to be\n * callable on the implementing contract but not through proxies.\n */\n modifier notDelegated() {\n require(address(this) == __self, \"UUPSUpgradeable: must not be called through delegatecall\");\n _;\n }\n\n function __UUPSUpgradeable_init() internal onlyInitializing {\n }\n\n function __UUPSUpgradeable_init_unchained() internal onlyInitializing {\n }\n /**\n * @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the\n * implementation. It is used to validate the implementation's compatibility when performing an upgrade.\n *\n * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks\n * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this\n * function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.\n */\n function proxiableUUID() external view virtual override notDelegated returns (bytes32) {\n return _IMPLEMENTATION_SLOT;\n }\n\n /**\n * @dev Upgrade the implementation of the proxy to `newImplementation`.\n *\n * Calls {_authorizeUpgrade}.\n *\n * Emits an {Upgraded} event.\n *\n * @custom:oz-upgrades-unsafe-allow-reachable delegatecall\n */\n function upgradeTo(address newImplementation) public virtual onlyProxy {\n _authorizeUpgrade(newImplementation);\n _upgradeToAndCallUUPS(newImplementation, new bytes(0), false);\n }\n\n /**\n * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call\n * encoded in `data`.\n *\n * Calls {_authorizeUpgrade}.\n *\n * Emits an {Upgraded} event.\n *\n * @custom:oz-upgrades-unsafe-allow-reachable delegatecall\n */\n function upgradeToAndCall(address newImplementation, bytes memory data) public payable virtual onlyProxy {\n _authorizeUpgrade(newImplementation);\n _upgradeToAndCallUUPS(newImplementation, data, true);\n }\n\n /**\n * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by\n * {upgradeTo} and {upgradeToAndCall}.\n *\n * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.\n *\n * ```solidity\n * function _authorizeUpgrade(address) internal override onlyOwner {}\n * ```\n */\n function _authorizeUpgrade(address newImplementation) internal virtual;\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[50] private __gap;\n}\n"},{"file_path":"@openzeppelin/contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol","source_code":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165Upgradeable {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"},{"file_path":"@openzeppelin/contracts-upgradeable/utils/math/MathUpgradeable.sol","source_code":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Standard math utilities missing in the Solidity language.\n */\nlibrary MathUpgradeable {\n enum Rounding {\n Down, // Toward negative infinity\n Up, // Toward infinity\n Zero // Toward zero\n }\n\n /**\n * @dev Returns the largest of two numbers.\n */\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n return a > b ? a : b;\n }\n\n /**\n * @dev Returns the smallest of two numbers.\n */\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n return a < b ? a : b;\n }\n\n /**\n * @dev Returns the average of two numbers. The result is rounded towards\n * zero.\n */\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n // (a + b) / 2 can overflow.\n return (a & b) + (a ^ b) / 2;\n }\n\n /**\n * @dev Returns the ceiling of the division of two numbers.\n *\n * This differs from standard division with `/` in that it rounds up instead\n * of rounding down.\n */\n function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n // (a + b - 1) / b can overflow on addition, so we distribute.\n return a == 0 ? 0 : (a - 1) / b + 1;\n }\n\n /**\n * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0\n * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)\n * with further edits by Uniswap Labs also under MIT license.\n */\n function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {\n unchecked {\n // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use\n // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256\n // variables such that product = prod1 * 2^256 + prod0.\n uint256 prod0; // Least significant 256 bits of the product\n uint256 prod1; // Most significant 256 bits of the product\n assembly {\n let mm := mulmod(x, y, not(0))\n prod0 := mul(x, y)\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n // Handle non-overflow cases, 256 by 256 division.\n if (prod1 == 0) {\n // Solidity will revert if denominator == 0, unlike the div opcode on its own.\n // The surrounding unchecked block does not change this fact.\n // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.\n return prod0 / denominator;\n }\n\n // Make sure the result is less than 2^256. Also prevents denominator == 0.\n require(denominator > prod1, \"Math: mulDiv overflow\");\n\n ///////////////////////////////////////////////\n // 512 by 256 division.\n ///////////////////////////////////////////////\n\n // Make division exact by subtracting the remainder from [prod1 prod0].\n uint256 remainder;\n assembly {\n // Compute remainder using mulmod.\n remainder := mulmod(x, y, denominator)\n\n // Subtract 256 bit number from 512 bit number.\n prod1 := sub(prod1, gt(remainder, prod0))\n prod0 := sub(prod0, remainder)\n }\n\n // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.\n // See https://cs.stackexchange.com/q/138556/92363.\n\n // Does not overflow because the denominator cannot be zero at this stage in the function.\n uint256 twos = denominator & (~denominator + 1);\n assembly {\n // Divide denominator by twos.\n denominator := div(denominator, twos)\n\n // Divide [prod1 prod0] by twos.\n prod0 := div(prod0, twos)\n\n // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.\n twos := add(div(sub(0, twos), twos), 1)\n }\n\n // Shift in bits from prod1 into prod0.\n prod0 |= prod1 * twos;\n\n // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such\n // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for\n // four bits. That is, denominator * inv = 1 mod 2^4.\n uint256 inverse = (3 * denominator) ^ 2;\n\n // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works\n // in modular arithmetic, doubling the correct bits in each step.\n inverse *= 2 - denominator * inverse; // inverse mod 2^8\n inverse *= 2 - denominator * inverse; // inverse mod 2^16\n inverse *= 2 - denominator * inverse; // inverse mod 2^32\n inverse *= 2 - denominator * inverse; // inverse mod 2^64\n inverse *= 2 - denominator * inverse; // inverse mod 2^128\n inverse *= 2 - denominator * inverse; // inverse mod 2^256\n\n // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.\n // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is\n // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1\n // is no longer required.\n result = prod0 * inverse;\n return result;\n }\n }\n\n /**\n * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.\n */\n function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {\n uint256 result = mulDiv(x, y, denominator);\n if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {\n result += 1;\n }\n return result;\n }\n\n /**\n * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.\n *\n * Inspired by Henry S. Warren, Jr.'s \"Hacker's Delight\" (Chapter 11).\n */\n function sqrt(uint256 a) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.\n //\n // We know that the \"msb\" (most significant bit) of our target number `a` is a power of 2 such that we have\n // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.\n //\n // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`\n // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`\n // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`\n //\n // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.\n uint256 result = 1 << (log2(a) >> 1);\n\n // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,\n // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at\n // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision\n // into the expected uint128 result.\n unchecked {\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n return min(result, a / result);\n }\n }\n\n /**\n * @notice Calculates sqrt(a), following the selected rounding direction.\n */\n function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = sqrt(a);\n return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 2, rounded down, of a positive value.\n * Returns 0 if given 0.\n */\n function log2(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n result += 128;\n }\n if (value >> 64 > 0) {\n value >>= 64;\n result += 64;\n }\n if (value >> 32 > 0) {\n value >>= 32;\n result += 32;\n }\n if (value >> 16 > 0) {\n value >>= 16;\n result += 16;\n }\n if (value >> 8 > 0) {\n value >>= 8;\n result += 8;\n }\n if (value >> 4 > 0) {\n value >>= 4;\n result += 4;\n }\n if (value >> 2 > 0) {\n value >>= 2;\n result += 2;\n }\n if (value >> 1 > 0) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 2, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log2(value);\n return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 10, rounded down, of a positive value.\n * Returns 0 if given 0.\n */\n function log10(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >= 10 ** 64) {\n value /= 10 ** 64;\n result += 64;\n }\n if (value >= 10 ** 32) {\n value /= 10 ** 32;\n result += 32;\n }\n if (value >= 10 ** 16) {\n value /= 10 ** 16;\n result += 16;\n }\n if (value >= 10 ** 8) {\n value /= 10 ** 8;\n result += 8;\n }\n if (value >= 10 ** 4) {\n value /= 10 ** 4;\n result += 4;\n }\n if (value >= 10 ** 2) {\n value /= 10 ** 2;\n result += 2;\n }\n if (value >= 10 ** 1) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log10(value);\n return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 256, rounded down, of a positive value.\n * Returns 0 if given 0.\n *\n * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.\n */\n function log256(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n result += 16;\n }\n if (value >> 64 > 0) {\n value >>= 64;\n result += 8;\n }\n if (value >> 32 > 0) {\n value >>= 32;\n result += 4;\n }\n if (value >> 16 > 0) {\n value >>= 16;\n result += 2;\n }\n if (value >> 8 > 0) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 256, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log256(value);\n return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);\n }\n }\n}\n"},{"file_path":"@openzeppelin/contracts-upgradeable/interfaces/IERC1967Upgradeable.sol","source_code":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC1967.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC.\n *\n * _Available since v4.8.3._\n */\ninterface IERC1967Upgradeable {\n /**\n * @dev Emitted when the implementation is upgraded.\n */\n event Upgraded(address indexed implementation);\n\n /**\n * @dev Emitted when the admin account has changed.\n */\n event AdminChanged(address previousAdmin, address newAdmin);\n\n /**\n * @dev Emitted when the beacon is changed.\n */\n event BeaconUpgraded(address indexed beacon);\n}\n"},{"file_path":"@chainlink/contracts/src/v0.8/llo-feeds/libraries/Common.sol","source_code":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\n/*\n * @title Common\n * @author Michael Fletcher\n * @notice Common functions and structs\n */\nlibrary Common {\n // @notice The asset struct to hold the address of an asset and amount\n struct Asset {\n address assetAddress;\n uint256 amount;\n }\n\n // @notice Struct to hold the address and its associated weight\n struct AddressAndWeight {\n address addr;\n uint64 weight;\n }\n\n /**\n * @notice Checks if an array of AddressAndWeight has duplicate addresses\n * @param recipients The array of AddressAndWeight to check\n * @return bool True if there are duplicates, false otherwise\n */\n function _hasDuplicateAddresses(\n address[] memory recipients\n ) internal pure returns (bool) {\n for (uint256 i = 0; i < recipients.length;) {\n for (uint256 j = i + 1; j < recipients.length;) {\n if (recipients[i] == recipients[j]) {\n return true;\n }\n unchecked {\n ++j;\n }\n }\n unchecked {\n ++i;\n }\n }\n return false;\n }\n\n /**\n * @notice Checks if an array of AddressAndWeight has duplicate addresses\n * @param recipients The array of AddressAndWeight to check\n * @return bool True if there are duplicates, false otherwise\n */\n function _hasDuplicateAddresses(\n Common.AddressAndWeight[] memory recipients\n ) internal pure returns (bool) {\n for (uint256 i = 0; i < recipients.length;) {\n for (uint256 j = i + 1; j < recipients.length;) {\n if (recipients[i].addr == recipients[j].addr) {\n return true;\n }\n unchecked {\n ++j;\n }\n }\n unchecked {\n ++i;\n }\n }\n return false;\n }\n\n /**\n * @notice sorts a list of addresses numerically\n * @param arr The array of addresses to sort\n * @param left the start index\n * @param right the end index\n */\n function _quickSort(address[] memory arr, int256 left, int256 right) internal pure {\n int256 i = left;\n int256 j = right;\n if (i == j) return;\n address pivot = arr[uint256(left + (right - left) / 2)];\n while (i <= j) {\n while (uint160(arr[uint256(i)]) < uint160(pivot)) i++;\n while (uint160(pivot) < uint160(arr[uint256(j)])) j--;\n if (i <= j) {\n (arr[uint256(i)], arr[uint256(j)]) = (arr[uint256(j)], arr[uint256(i)]);\n i++;\n j--;\n }\n }\n if (left < j) _quickSort(arr, left, j);\n if (i < right) _quickSort(arr, i, right);\n }\n}\n"},{"file_path":"@chainlink/contracts/src/v0.8/llo-feeds/v0.3.0/interfaces/IVerifierFeeManager.sol","source_code":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nimport {Common} from \"../../libraries/Common.sol\";\nimport {IERC165} from \"@openzeppelin/contracts@4.8.3/interfaces/IERC165.sol\";\n\ninterface IVerifierFeeManager is IERC165 {\n /**\n * @notice Handles fees for a report from the subscriber and manages rewards\n * @param payload report to process the fee for\n * @param parameterPayload fee payload\n * @param subscriber address of the fee will be applied\n */\n function processFee(bytes calldata payload, bytes calldata parameterPayload, address subscriber) external payable;\n\n /**\n * @notice Processes the fees for each report in the payload, billing the subscriber and paying the reward manager\n * @param payloads reports to process\n * @param parameterPayload fee payload\n * @param subscriber address of the user to process fee for\n */\n function processFeeBulk(\n bytes[] calldata payloads,\n bytes calldata parameterPayload,\n address subscriber\n ) external payable;\n\n /**\n * @notice Sets the fee recipients according to the fee manager\n * @param configDigest digest of the configuration\n * @param rewardRecipientAndWeights the address and weights of all the recipients to receive rewards\n */\n function setFeeRecipients(\n bytes32 configDigest,\n Common.AddressAndWeight[] calldata rewardRecipientAndWeights\n ) external;\n}\n"},{"file_path":"@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol","source_code":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (access/AccessControl.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IAccessControlUpgradeable.sol\";\nimport \"../utils/ContextUpgradeable.sol\";\nimport \"../utils/StringsUpgradeable.sol\";\nimport \"../utils/introspection/ERC165Upgradeable.sol\";\nimport {Initializable} from \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Contract module that allows children to implement role-based access\n * control mechanisms. This is a lightweight version that doesn't allow enumerating role\n * members except through off-chain means by accessing the contract event logs. Some\n * applications may benefit from on-chain enumerability, for those cases see\n * {AccessControlEnumerable}.\n *\n * Roles are referred to by their `bytes32` identifier. These should be exposed\n * in the external API and be unique. The best way to achieve this is by\n * using `public constant` hash digests:\n *\n * ```solidity\n * bytes32 public constant MY_ROLE = keccak256(\"MY_ROLE\");\n * ```\n *\n * Roles can be used to represent a set of permissions. To restrict access to a\n * function call, use {hasRole}:\n *\n * ```solidity\n * function foo() public {\n * require(hasRole(MY_ROLE, msg.sender));\n * ...\n * }\n * ```\n *\n * Roles can be granted and revoked dynamically via the {grantRole} and\n * {revokeRole} functions. Each role has an associated admin role, and only\n * accounts that have a role's admin role can call {grantRole} and {revokeRole}.\n *\n * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means\n * that only accounts with this role will be able to grant or revoke other\n * roles. More complex role relationships can be created by using\n * {_setRoleAdmin}.\n *\n * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to\n * grant and revoke this role. Extra precautions should be taken to secure\n * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules}\n * to enforce additional security measures for this role.\n */\nabstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControlUpgradeable, ERC165Upgradeable {\n struct RoleData {\n mapping(address => bool) members;\n bytes32 adminRole;\n }\n\n mapping(bytes32 => RoleData) private _roles;\n\n bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;\n\n /**\n * @dev Modifier that checks that an account has a specific role. Reverts\n * with a standardized message including the required role.\n *\n * The format of the revert reason is given by the following regular expression:\n *\n * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/\n *\n * _Available since v4.1._\n */\n modifier onlyRole(bytes32 role) {\n _checkRole(role);\n _;\n }\n\n function __AccessControl_init() internal onlyInitializing {\n }\n\n function __AccessControl_init_unchained() internal onlyInitializing {\n }\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IAccessControlUpgradeable).interfaceId || super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev Returns `true` if `account` has been granted `role`.\n */\n function hasRole(bytes32 role, address account) public view virtual override returns (bool) {\n return _roles[role].members[account];\n }\n\n /**\n * @dev Revert with a standard message if `_msgSender()` is missing `role`.\n * Overriding this function changes the behavior of the {onlyRole} modifier.\n *\n * Format of the revert message is described in {_checkRole}.\n *\n * _Available since v4.6._\n */\n function _checkRole(bytes32 role) internal view virtual {\n _checkRole(role, _msgSender());\n }\n\n /**\n * @dev Revert with a standard message if `account` is missing `role`.\n *\n * The format of the revert reason is given by the following regular expression:\n *\n * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/\n */\n function _checkRole(bytes32 role, address account) internal view virtual {\n if (!hasRole(role, account)) {\n revert(\n string(\n abi.encodePacked(\n \"AccessControl: account \",\n StringsUpgradeable.toHexString(account),\n \" is missing role \",\n StringsUpgradeable.toHexString(uint256(role), 32)\n )\n )\n );\n }\n }\n\n /**\n * @dev Returns the admin role that controls `role`. See {grantRole} and\n * {revokeRole}.\n *\n * To change a role's admin, use {_setRoleAdmin}.\n */\n function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {\n return _roles[role].adminRole;\n }\n\n /**\n * @dev Grants `role` to `account`.\n *\n * If `account` had not been already granted `role`, emits a {RoleGranted}\n * event.\n *\n * Requirements:\n *\n * - the caller must have ``role``'s admin role.\n *\n * May emit a {RoleGranted} event.\n */\n function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {\n _grantRole(role, account);\n }\n\n /**\n * @dev Revokes `role` from `account`.\n *\n * If `account` had been granted `role`, emits a {RoleRevoked} event.\n *\n * Requirements:\n *\n * - the caller must have ``role``'s admin role.\n *\n * May emit a {RoleRevoked} event.\n */\n function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {\n _revokeRole(role, account);\n }\n\n /**\n * @dev Revokes `role` from the calling account.\n *\n * Roles are often managed via {grantRole} and {revokeRole}: this function's\n * purpose is to provide a mechanism for accounts to lose their privileges\n * if they are compromised (such as when a trusted device is misplaced).\n *\n * If the calling account had been revoked `role`, emits a {RoleRevoked}\n * event.\n *\n * Requirements:\n *\n * - the caller must be `account`.\n *\n * May emit a {RoleRevoked} event.\n */\n function renounceRole(bytes32 role, address account) public virtual override {\n require(account == _msgSender(), \"AccessControl: can only renounce roles for self\");\n\n _revokeRole(role, account);\n }\n\n /**\n * @dev Grants `role` to `account`.\n *\n * If `account` had not been already granted `role`, emits a {RoleGranted}\n * event. Note that unlike {grantRole}, this function doesn't perform any\n * checks on the calling account.\n *\n * May emit a {RoleGranted} event.\n *\n * [WARNING]\n * ====\n * This function should only be called from the constructor when setting\n * up the initial roles for the system.\n *\n * Using this function in any other way is effectively circumventing the admin\n * system imposed by {AccessControl}.\n * ====\n *\n * NOTE: This function is deprecated in favor of {_grantRole}.\n */\n function _setupRole(bytes32 role, address account) internal virtual {\n _grantRole(role, account);\n }\n\n /**\n * @dev Sets `adminRole` as ``role``'s admin role.\n *\n * Emits a {RoleAdminChanged} event.\n */\n function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {\n bytes32 previousAdminRole = getRoleAdmin(role);\n _roles[role].adminRole = adminRole;\n emit RoleAdminChanged(role, previousAdminRole, adminRole);\n }\n\n /**\n * @dev Grants `role` to `account`.\n *\n * Internal function without access restriction.\n *\n * May emit a {RoleGranted} event.\n */\n function _grantRole(bytes32 role, address account) internal virtual {\n if (!hasRole(role, account)) {\n _roles[role].members[account] = true;\n emit RoleGranted(role, account, _msgSender());\n }\n }\n\n /**\n * @dev Revokes `role` from `account`.\n *\n * Internal function without access restriction.\n *\n * May emit a {RoleRevoked} event.\n */\n function _revokeRole(bytes32 role, address account) internal virtual {\n if (hasRole(role, account)) {\n _roles[role].members[account] = false;\n emit RoleRevoked(role, account, _msgSender());\n }\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[49] private __gap;\n}\n"},{"file_path":"@openzeppelin/contracts-upgradeable/access/IAccessControlUpgradeable.sol","source_code":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev External interface of AccessControl declared to support ERC165 detection.\n */\ninterface IAccessControlUpgradeable {\n /**\n * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`\n *\n * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite\n * {RoleAdminChanged} not being emitted signaling this.\n *\n * _Available since v3.1._\n */\n event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);\n\n /**\n * @dev Emitted when `account` is granted `role`.\n *\n * `sender` is the account that originated the contract call, an admin role\n * bearer except when using {AccessControl-_setupRole}.\n */\n event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);\n\n /**\n * @dev Emitted when `account` is revoked `role`.\n *\n * `sender` is the account that originated the contract call:\n * - if using `revokeRole`, it is the admin role bearer\n * - if using `renounceRole`, it is the role bearer (i.e. `account`)\n */\n event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);\n\n /**\n * @dev Returns `true` if `account` has been granted `role`.\n */\n function hasRole(bytes32 role, address account) external view returns (bool);\n\n /**\n * @dev Returns the admin role that controls `role`. See {grantRole} and\n * {revokeRole}.\n *\n * To change a role's admin, use {AccessControl-_setRoleAdmin}.\n */\n function getRoleAdmin(bytes32 role) external view returns (bytes32);\n\n /**\n * @dev Grants `role` to `account`.\n *\n * If `account` had not been already granted `role`, emits a {RoleGranted}\n * event.\n *\n * Requirements:\n *\n * - the caller must have ``role``'s admin role.\n */\n function grantRole(bytes32 role, address account) external;\n\n /**\n * @dev Revokes `role` from `account`.\n *\n * If `account` had been granted `role`, emits a {RoleRevoked} event.\n *\n * Requirements:\n *\n * - the caller must have ``role``'s admin role.\n */\n function revokeRole(bytes32 role, address account) external;\n\n /**\n * @dev Revokes `role` from the calling account.\n *\n * Roles are often managed via {grantRole} and {revokeRole}: this function's\n * purpose is to provide a mechanism for accounts to lose their privileges\n * if they are compromised (such as when a trusted device is misplaced).\n *\n * If the calling account had been granted `role`, emits a {RoleRevoked}\n * event.\n *\n * Requirements:\n *\n * - the caller must be `account`.\n */\n function renounceRole(bytes32 role, address account) external;\n}\n"},{"file_path":"@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol","source_code":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/ContextUpgradeable.sol\";\nimport {Initializable} from \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Contract module which allows children to implement an emergency stop\n * mechanism that can be triggered by an authorized account.\n *\n * This module is used through inheritance. It will make available the\n * modifiers `whenNotPaused` and `whenPaused`, which can be applied to\n * the functions of your contract. Note that they will not be pausable by\n * simply including this module, only once the modifiers are put in place.\n */\nabstract contract PausableUpgradeable is Initializable, ContextUpgradeable {\n /**\n * @dev Emitted when the pause is triggered by `account`.\n */\n event Paused(address account);\n\n /**\n * @dev Emitted when the pause is lifted by `account`.\n */\n event Unpaused(address account);\n\n bool private _paused;\n\n /**\n * @dev Initializes the contract in unpaused state.\n */\n function __Pausable_init() internal onlyInitializing {\n __Pausable_init_unchained();\n }\n\n function __Pausable_init_unchained() internal onlyInitializing {\n _paused = false;\n }\n\n /**\n * @dev Modifier to make a function callable only when the contract is not paused.\n *\n * Requirements:\n *\n * - The contract must not be paused.\n */\n modifier whenNotPaused() {\n _requireNotPaused();\n _;\n }\n\n /**\n * @dev Modifier to make a function callable only when the contract is paused.\n *\n * Requirements:\n *\n * - The contract must be paused.\n */\n modifier whenPaused() {\n _requirePaused();\n _;\n }\n\n /**\n * @dev Returns true if the contract is paused, and false otherwise.\n */\n function paused() public view virtual returns (bool) {\n return _paused;\n }\n\n /**\n * @dev Throws if the contract is paused.\n */\n function _requireNotPaused() internal view virtual {\n require(!paused(), \"Pausable: paused\");\n }\n\n /**\n * @dev Throws if the contract is not paused.\n */\n function _requirePaused() internal view virtual {\n require(paused(), \"Pausable: not paused\");\n }\n\n /**\n * @dev Triggers stopped state.\n *\n * Requirements:\n *\n * - The contract must not be paused.\n */\n function _pause() internal virtual whenNotPaused {\n _paused = true;\n emit Paused(_msgSender());\n }\n\n /**\n * @dev Returns to normal state.\n *\n * Requirements:\n *\n * - The contract must be paused.\n */\n function _unpause() internal virtual whenPaused {\n _paused = false;\n emit Unpaused(_msgSender());\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[49] private __gap;\n}\n"},{"file_path":"@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol","source_code":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary AddressUpgradeable {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n *\n * Furthermore, `isContract` will also return true if the target contract within\n * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,\n * which only has an effect at the end of a transaction.\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check isContract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(isContract(target), \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n"},{"file_path":"@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol","source_code":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)\n\npragma solidity ^0.8.0;\nimport {Initializable} from \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract ContextUpgradeable is Initializable {\n function __Context_init() internal onlyInitializing {\n }\n\n function __Context_init_unchained() internal onlyInitializing {\n }\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n\n function _contextSuffixLength() internal view virtual returns (uint256) {\n return 0;\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[50] private __gap;\n}\n"},{"file_path":"@openzeppelin/contracts-upgradeable/utils/StorageSlotUpgradeable.sol","source_code":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/StorageSlot.sol)\n// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Library for reading and writing primitive types to specific storage slots.\n *\n * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.\n * This library helps with reading and writing to such slots without the need for inline assembly.\n *\n * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.\n *\n * Example usage to set ERC1967 implementation slot:\n * ```solidity\n * contract ERC1967 {\n * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;\n *\n * function _getImplementation() internal view returns (address) {\n * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;\n * }\n *\n * function _setImplementation(address newImplementation) internal {\n * require(Address.isContract(newImplementation), \"ERC1967: new implementation is not a contract\");\n * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;\n * }\n * }\n * ```\n *\n * _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._\n * _Available since v4.9 for `string`, `bytes`._\n */\nlibrary StorageSlotUpgradeable {\n struct AddressSlot {\n address value;\n }\n\n struct BooleanSlot {\n bool value;\n }\n\n struct Bytes32Slot {\n bytes32 value;\n }\n\n struct Uint256Slot {\n uint256 value;\n }\n\n struct StringSlot {\n string value;\n }\n\n struct BytesSlot {\n bytes value;\n }\n\n /**\n * @dev Returns an `AddressSlot` with member `value` located at `slot`.\n */\n function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `BooleanSlot` with member `value` located at `slot`.\n */\n function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.\n */\n function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `Uint256Slot` with member `value` located at `slot`.\n */\n function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `StringSlot` with member `value` located at `slot`.\n */\n function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `StringSlot` representation of the string storage pointer `store`.\n */\n function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := store.slot\n }\n }\n\n /**\n * @dev Returns an `BytesSlot` with member `value` located at `slot`.\n */\n function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.\n */\n function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := store.slot\n }\n }\n}\n"},{"file_path":"@openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol","source_code":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./math/MathUpgradeable.sol\";\nimport \"./math/SignedMathUpgradeable.sol\";\n\n/**\n * @dev String operations.\n */\nlibrary StringsUpgradeable {\n bytes16 private constant _SYMBOLS = \"0123456789abcdef\";\n uint8 private constant _ADDRESS_LENGTH = 20;\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n */\n function toString(uint256 value) internal pure returns (string memory) {\n unchecked {\n uint256 length = MathUpgradeable.log10(value) + 1;\n string memory buffer = new string(length);\n uint256 ptr;\n /// @solidity memory-safe-assembly\n assembly {\n ptr := add(buffer, add(32, length))\n }\n while (true) {\n ptr--;\n /// @solidity memory-safe-assembly\n assembly {\n mstore8(ptr, byte(mod(value, 10), _SYMBOLS))\n }\n value /= 10;\n if (value == 0) break;\n }\n return buffer;\n }\n }\n\n /**\n * @dev Converts a `int256` to its ASCII `string` decimal representation.\n */\n function toString(int256 value) internal pure returns (string memory) {\n return string(abi.encodePacked(value < 0 ? \"-\" : \"\", toString(SignedMathUpgradeable.abs(value))));\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n */\n function toHexString(uint256 value) internal pure returns (string memory) {\n unchecked {\n return toHexString(value, MathUpgradeable.log256(value) + 1);\n }\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n */\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n buffer[0] = \"0\";\n buffer[1] = \"x\";\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _SYMBOLS[value & 0xf];\n value >>= 4;\n }\n require(value == 0, \"Strings: hex length insufficient\");\n return string(buffer);\n }\n\n /**\n * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.\n */\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n }\n\n /**\n * @dev Returns true if the two strings are equal.\n */\n function equal(string memory a, string memory b) internal pure returns (bool) {\n return keccak256(bytes(a)) == keccak256(bytes(b));\n }\n}\n"},{"file_path":"@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol","source_code":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165Upgradeable.sol\";\nimport {Initializable} from \"../../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {\n function __ERC165_init() internal onlyInitializing {\n }\n\n function __ERC165_init_unchained() internal onlyInitializing {\n }\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IERC165Upgradeable).interfaceId;\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[50] private __gap;\n}\n"},{"file_path":"@openzeppelin/contracts-upgradeable/utils/math/SignedMathUpgradeable.sol","source_code":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Standard signed math utilities missing in the Solidity language.\n */\nlibrary SignedMathUpgradeable {\n /**\n * @dev Returns the largest of two signed numbers.\n */\n function max(int256 a, int256 b) internal pure returns (int256) {\n return a > b ? a : b;\n }\n\n /**\n * @dev Returns the smallest of two signed numbers.\n */\n function min(int256 a, int256 b) internal pure returns (int256) {\n return a < b ? a : b;\n }\n\n /**\n * @dev Returns the average of two signed numbers without overflow.\n * The result is rounded towards zero.\n */\n function average(int256 a, int256 b) internal pure returns (int256) {\n // Formula from the book \"Hacker's Delight\"\n int256 x = (a & b) + ((a ^ b) >> 1);\n return x + (int256(uint256(x) >> 255) & (a ^ b));\n }\n\n /**\n * @dev Returns the absolute unsigned value of a signed value.\n */\n function abs(int256 n) internal pure returns (uint256) {\n unchecked {\n // must be unchecked in order to support `n = type(int256).min`\n return uint256(n >= 0 ? n : -n);\n }\n }\n}\n"},{"file_path":"@openzeppelin/contracts@4.8.3/interfaces/IERC165.sol","source_code":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165.sol\";\n"},{"file_path":"@openzeppelin/contracts@4.8.3/utils/introspection/IERC165.sol","source_code":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"}],"certified":false,"conflicting_implementations":null,"abi":[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"uint32","name":"expiresAt","type":"uint32"},{"internalType":"uint32","name":"currentTime","type":"uint32"}],"name":"ExpiredReport","type":"error"},{"inputs":[{"internalType":"bytes32","name":"expected","type":"bytes32"},{"internalType":"bytes32","name":"actual","type":"bytes32"}],"name":"InvalidFeedId","type":"error"},{"inputs":[{"internalType":"uint16","name":"version","type":"uint16"}],"name":"InvalidReportVersion","type":"error"},{"inputs":[],"name":"NothingToWithdraw","type":"error"},{"inputs":[{"internalType":"bytes32","name":"feedId","type":"bytes32"}],"name":"PriceNotInitialized","type":"error"},{"inputs":[{"internalType":"uint32","name":"validFromTimestamp","type":"uint32"},{"internalType":"uint32","name":"currentTime","type":"uint32"}],"name":"ReportNotYetValid","type":"error"},{"inputs":[{"internalType":"bytes32","name":"feedId","type":"bytes32"},{"internalType":"uint32","name":"lastTimestamp","type":"uint32"},{"internalType":"uint32","name":"currentTime","type":"uint32"}],"name":"StalePrice","type":"error"},{"inputs":[{"internalType":"uint32","name":"newTimestamp","type":"uint32"},{"internalType":"uint32","name":"storedTimestamp","type":"uint32"}],"name":"StaleReport","type":"error"},{"inputs":[],"name":"ZeroAddress","type":"error"},{"inputs":[{"internalType":"bytes32","name":"feedId","type":"bytes32"}],"name":"ZeroPriceInReport","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"previousAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"beacon","type":"address"}],"name":"BeaconUpgraded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"feedId","type":"bytes32"},{"indexed":false,"internalType":"int192","name":"price","type":"int192"},{"indexed":false,"internalType":"uint32","name":"observationsTimestamp","type":"uint32"}],"name":"DecodedPrice","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"beneficiary","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"EthWithdrawn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"oldFeedId","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newFeedId","type":"bytes32"}],"name":"FeedIdUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint8","name":"version","type":"uint8"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"feedId","type":"bytes32"},{"indexed":false,"internalType":"uint32","name":"oldMaxStaleness","type":"uint32"},{"indexed":false,"internalType":"uint32","name":"newMaxStaleness","type":"uint32"}],"name":"MaxStalenessByFeedUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint32","name":"oldMaxStaleness","type":"uint32"},{"indexed":false,"internalType":"uint32","name":"newMaxStaleness","type":"uint32"}],"name":"MaxStalenessUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","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":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PAUSER_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"in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