Overview
TokenID
679
Total Transfers
-
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 0 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
CheetahDiamond
Compiler Version
v0.8.17+commit.8df45f5f
Optimization Enabled:
Yes with 99999 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.0; import { IERC721AUpgradeable } from 'erc721a-upgradeable/contracts/IERC721AUpgradeable.sol'; import { IERC721AQueryableUpgradeable } from 'erc721a-upgradeable/contracts/extensions/IERC721AQueryableUpgradeable.sol'; import { IERC165Upgradeable } from '@openzeppelin/contracts-upgradeable/interfaces/IERC165Upgradeable.sol'; import { IERC2981Upgradeable } from '@openzeppelin/contracts-upgradeable/interfaces/IERC2981Upgradeable.sol'; import { Diamond } from 'contracts-starter/contracts/Diamond.sol'; import { DiamondCutFacet } from 'contracts-starter/contracts/facets/DiamondCutFacet.sol'; import { DiamondLoupeFacet } from 'contracts-starter/contracts/facets/DiamondLoupeFacet.sol'; import { LibDiamond } from 'contracts-starter/contracts/libraries/LibDiamond.sol'; import { IDiamondCut } from 'contracts-starter/contracts/interfaces/IDiamondCut.sol'; import { IDiamondLoupe } from 'contracts-starter/contracts/interfaces/IDiamondLoupe.sol'; import { IERC173 } from 'contracts-starter/contracts/interfaces/IERC173.sol'; contract CheetahDiamond is Diamond { constructor(address contractOwner, address diamondCutFacet, address diamondLoupeFacet) Diamond(contractOwner, diamondCutFacet) payable { // Add ERC165 data LibDiamond.DiamondStorage storage ds = LibDiamond.diamondStorage(); ds.supportedInterfaces[type(IERC165Upgradeable).interfaceId] = true; ds.supportedInterfaces[type(IDiamondCut).interfaceId] = true; ds.supportedInterfaces[type(IDiamondLoupe).interfaceId] = true; ds.supportedInterfaces[type(IERC173).interfaceId] = true; ds.supportedInterfaces[type(IERC721AUpgradeable).interfaceId] = true; ds.supportedInterfaces[type(IERC721AQueryableUpgradeable).interfaceId] = true; // TODO: why IERC2981Upgradeable and not just IERC2981 ds.supportedInterfaces[type(IERC2981Upgradeable).interfaceId] = true; // Add functions to the diamond IDiamondCut.FacetCut[] memory cut = new IDiamondCut.FacetCut[](1); bytes4[] memory diamondLoupeSelectors = new bytes4[](5); diamondLoupeSelectors[0] = IDiamondLoupe.facets.selector; diamondLoupeSelectors[1] = IDiamondLoupe.facetFunctionSelectors.selector; diamondLoupeSelectors[2] = IDiamondLoupe.facetAddresses.selector; diamondLoupeSelectors[3] = IDiamondLoupe.facetAddress.selector; diamondLoupeSelectors[4] = IERC165Upgradeable.supportsInterface.selector; cut[0] = IDiamondCut.FacetCut({ facetAddress: diamondLoupeFacet, action: IDiamondCut.FacetCutAction.Add, functionSelectors: diamondLoupeSelectors }); LibDiamond.diamondCut(cut, address(0), ''); } }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.2.2 // Creator: Chiru Labs pragma solidity ^0.8.4; /** * @dev Interface of ERC721A. */ interface IERC721AUpgradeable { /** * The caller must own the token or be an approved operator. */ error ApprovalCallerNotOwnerNorApproved(); /** * The token does not exist. */ error ApprovalQueryForNonexistentToken(); /** * The caller cannot approve to their own address. */ error ApproveToCaller(); /** * Cannot query the balance for the zero address. */ error BalanceQueryForZeroAddress(); /** * Cannot mint to the zero address. */ error MintToZeroAddress(); /** * The quantity of tokens minted must be more than zero. */ error MintZeroQuantity(); /** * The token does not exist. */ error OwnerQueryForNonexistentToken(); /** * The caller must own the token or be an approved operator. */ error TransferCallerNotOwnerNorApproved(); /** * The token must be owned by `from`. */ error TransferFromIncorrectOwner(); /** * Cannot safely transfer to a contract that does not implement the * ERC721Receiver interface. */ error TransferToNonERC721ReceiverImplementer(); /** * Cannot transfer to the zero address. */ error TransferToZeroAddress(); /** * The token does not exist. */ error URIQueryForNonexistentToken(); /** * The `quantity` minted with ERC2309 exceeds the safety limit. */ error MintERC2309QuantityExceedsLimit(); /** * The `extraData` cannot be set on an unintialized ownership slot. */ error OwnershipNotInitializedForExtraData(); // ============================================================= // STRUCTS // ============================================================= struct TokenOwnership { // The address of the owner. address addr; // Stores the start time of ownership with minimal overhead for tokenomics. uint64 startTimestamp; // Whether the token has been burned. bool burned; // Arbitrary data similar to `startTimestamp` that can be set via {_extraData}. uint24 extraData; } // ============================================================= // TOKEN COUNTERS // ============================================================= /** * @dev Returns the total number of tokens in existence. * Burned tokens will reduce the count. * To get the total number of tokens minted, please see {_totalMinted}. */ function totalSupply() external view returns (uint256); // ============================================================= // IERC165 // ============================================================= /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified) * to learn more about how these ids are created. * * This function call must use less than 30000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); // ============================================================= // IERC721 // ============================================================= /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables * (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in `owner`'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`, * checking first that contract recipients are aware of the ERC721 protocol * to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move * this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; /** * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} * whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token * by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the * zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} * for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll}. */ function isApprovedForAll(address owner, address operator) external view returns (bool); // ============================================================= // IERC721Metadata // ============================================================= /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); // ============================================================= // IERC2309 // ============================================================= /** * @dev Emitted when tokens in `fromTokenId` to `toTokenId` * (inclusive) is transferred from `from` to `to`, as defined in the * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard. * * See {_mintERC2309} for more details. */ event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /******************************************************************************\ * Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen) * EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535 * * Implementation of a diamond. /******************************************************************************/ import { LibDiamond } from "./libraries/LibDiamond.sol"; import { IDiamondCut } from "./interfaces/IDiamondCut.sol"; contract Diamond { constructor(address _contractOwner, address _diamondCutFacet) payable { LibDiamond.setContractOwner(_contractOwner); // Add the diamondCut external function from the diamondCutFacet IDiamondCut.FacetCut[] memory cut = new IDiamondCut.FacetCut[](1); bytes4[] memory functionSelectors = new bytes4[](1); functionSelectors[0] = IDiamondCut.diamondCut.selector; cut[0] = IDiamondCut.FacetCut({ facetAddress: _diamondCutFacet, action: IDiamondCut.FacetCutAction.Add, functionSelectors: functionSelectors }); LibDiamond.diamondCut(cut, address(0), ""); } // Find facet for function that is called and execute the // function if a facet is found and return any value. fallback() external payable { LibDiamond.DiamondStorage storage ds; bytes32 position = LibDiamond.DIAMOND_STORAGE_POSITION; // get diamond storage assembly { ds.slot := position } // get facet from function selector address facet = address(bytes20(ds.facets[msg.sig])); require(facet != address(0), "Diamond: Function does not exist"); // Execute external function from facet using delegatecall and return any value. assembly { // copy function selector and any arguments calldatacopy(0, 0, calldatasize()) // execute function call using the facet let result := delegatecall(gas(), facet, 0, calldatasize(), 0, 0) // get any return value returndatacopy(0, 0, returndatasize()) // return any return value or error back to the caller switch result case 0 { revert(0, returndatasize()) } default { return(0, returndatasize()) } } } receive() external payable {} }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.2.2 // Creator: Chiru Labs pragma solidity ^0.8.4; import '../IERC721AUpgradeable.sol'; /** * @dev Interface of ERC721AQueryable. */ interface IERC721AQueryableUpgradeable is IERC721AUpgradeable { /** * Invalid query range (`start` >= `stop`). */ error InvalidQueryRange(); /** * @dev Returns the `TokenOwnership` struct at `tokenId` without reverting. * * If the `tokenId` is out of bounds: * * - `addr = address(0)` * - `startTimestamp = 0` * - `burned = false` * - `extraData = 0` * * If the `tokenId` is burned: * * - `addr = <Address of owner before token was burned>` * - `startTimestamp = <Timestamp when token was burned>` * - `burned = true` * - `extraData = <Extra data when token was burned>` * * Otherwise: * * - `addr = <Address of owner>` * - `startTimestamp = <Timestamp of start of ownership>` * - `burned = false` * - `extraData = <Extra data at start of ownership>` */ function explicitOwnershipOf(uint256 tokenId) external view returns (TokenOwnership memory); /** * @dev Returns an array of `TokenOwnership` structs at `tokenIds` in order. * See {ERC721AQueryable-explicitOwnershipOf} */ function explicitOwnershipsOf(uint256[] memory tokenIds) external view returns (TokenOwnership[] memory); /** * @dev Returns an array of token IDs owned by `owner`, * in the range [`start`, `stop`) * (i.e. `start <= tokenId < stop`). * * This function allows for tokens to be queried if the collection * grows too big for a single call of {ERC721AQueryable-tokensOfOwner}. * * Requirements: * * - `start < stop` */ function tokensOfOwnerIn( address owner, uint256 start, uint256 stop ) external view returns (uint256[] memory); /** * @dev Returns an array of token IDs owned by `owner`. * * This function scans the ownership mapping and is O(`totalSupply`) in complexity. * It is meant to be called off-chain. * * See {ERC721AQueryable-tokensOfOwnerIn} for splitting the scan into * multiple smaller scans if the collection is large enough to cause * an out-of-gas error (10K collections should be fine). */ function tokensOfOwner(address owner) external view returns (uint256[] memory); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /******************************************************************************\ * Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen) * EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535 /******************************************************************************/ import { IDiamondCut } from "../interfaces/IDiamondCut.sol"; import { LibDiamond } from "../libraries/LibDiamond.sol"; // Remember to add the loupe functions from DiamondLoupeFacet to the diamond. // The loupe functions are required by the EIP2535 Diamonds standard contract DiamondCutFacet is IDiamondCut { /// @notice Add/replace/remove any number of functions and optionally execute /// a function with delegatecall /// @param _diamondCut Contains the facet addresses and function selectors /// @param _init The address of the contract or facet to execute _calldata /// @param _calldata A function call, including function selector and arguments /// _calldata is executed with delegatecall on _init function diamondCut( FacetCut[] calldata _diamondCut, address _init, bytes calldata _calldata ) external override { LibDiamond.enforceIsContractOwner(); LibDiamond.DiamondStorage storage ds = LibDiamond.diamondStorage(); uint256 originalSelectorCount = ds.selectorCount; uint256 selectorCount = originalSelectorCount; bytes32 selectorSlot; // Check if last selector slot is not full // "selectorCount & 7" is a gas efficient modulo by eight "selectorCount % 8" if (selectorCount & 7 > 0) { // get last selectorSlot // "selectorCount >> 3" is a gas efficient division by 8 "selectorCount / 8" selectorSlot = ds.selectorSlots[selectorCount >> 3]; } // loop through diamond cut for (uint256 facetIndex; facetIndex < _diamondCut.length; facetIndex++) { (selectorCount, selectorSlot) = LibDiamond.addReplaceRemoveFacetSelectors( selectorCount, selectorSlot, _diamondCut[facetIndex].facetAddress, _diamondCut[facetIndex].action, _diamondCut[facetIndex].functionSelectors ); } if (selectorCount != originalSelectorCount) { ds.selectorCount = uint16(selectorCount); } // If last selector slot is not full // "selectorCount & 7" is a gas efficient modulo by eight "selectorCount % 8" if (selectorCount & 7 > 0) { // "selectorCount >> 3" is a gas efficient division by 8 "selectorCount / 8" ds.selectorSlots[selectorCount >> 3] = selectorSlot; } emit DiamondCut(_diamondCut, _init, _calldata); LibDiamond.initializeDiamondCut(_init, _calldata); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol) pragma solidity ^0.8.0; import "../utils/introspection/IERC165Upgradeable.sol";
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol) pragma solidity ^0.8.0; import "../utils/introspection/IERC165Upgradeable.sol"; /** * @dev Interface for the NFT Royalty Standard. * * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal * support for royalty payments across all NFT marketplaces and ecosystem participants. * * _Available since v4.5._ */ interface IERC2981Upgradeable is IERC165Upgradeable { /** * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of * exchange. The royalty amount is denominated and should be paid in that same unit of exchange. */ function royaltyInfo(uint256 tokenId, uint256 salePrice) external view returns (address receiver, uint256 royaltyAmount); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /******************************************************************************\ * Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen) * EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535 /******************************************************************************/ import { LibDiamond } from "../libraries/LibDiamond.sol"; import { IDiamondLoupe } from "../interfaces/IDiamondLoupe.sol"; import { IERC165 } from "../interfaces/IERC165.sol"; // The functions in DiamondLoupeFacet MUST be added to a diamond. // The EIP-2535 Diamond standard requires these functions contract DiamondLoupeFacet is IDiamondLoupe, IERC165 { // Diamond Loupe Functions //////////////////////////////////////////////////////////////////// /// These functions are expected to be called frequently by tools. // // struct Facet { // address facetAddress; // bytes4[] functionSelectors; // } /// @notice Gets all facets and their selectors. /// @return facets_ Facet function facets() external override view returns (Facet[] memory facets_) { LibDiamond.DiamondStorage storage ds = LibDiamond.diamondStorage(); facets_ = new Facet[](ds.selectorCount); uint16[] memory numFacetSelectors = new uint16[](ds.selectorCount); uint256 numFacets; uint256 selectorIndex; // loop through function selectors for (uint256 slotIndex; selectorIndex < ds.selectorCount; slotIndex++) { bytes32 slot = ds.selectorSlots[slotIndex]; for (uint256 selectorSlotIndex; selectorSlotIndex < 8; selectorSlotIndex++) { selectorIndex++; if (selectorIndex > ds.selectorCount) { break; } // " << 5 is the same as multiplying by 32 ( * 32) bytes4 selector = bytes4(slot << (selectorSlotIndex << 5)); address facetAddress_ = address(bytes20(ds.facets[selector])); bool continueLoop; for (uint256 facetIndex; facetIndex < numFacets; facetIndex++) { if (facets_[facetIndex].facetAddress == facetAddress_) { facets_[facetIndex].functionSelectors[numFacetSelectors[facetIndex]] = selector; // probably will never have more than 256 functions from one facet contract require(numFacetSelectors[facetIndex] < 255); numFacetSelectors[facetIndex]++; continueLoop = true; break; } } if (continueLoop) { continue; } facets_[numFacets].facetAddress = facetAddress_; facets_[numFacets].functionSelectors = new bytes4[](ds.selectorCount); facets_[numFacets].functionSelectors[0] = selector; numFacetSelectors[numFacets] = 1; numFacets++; } } for (uint256 facetIndex; facetIndex < numFacets; facetIndex++) { uint256 numSelectors = numFacetSelectors[facetIndex]; bytes4[] memory selectors = facets_[facetIndex].functionSelectors; // setting the number of selectors assembly { mstore(selectors, numSelectors) } } // setting the number of facets assembly { mstore(facets_, numFacets) } } /// @notice Gets all the function selectors supported by a specific facet. /// @param _facet The facet address. /// @return _facetFunctionSelectors The selectors associated with a facet address. function facetFunctionSelectors(address _facet) external override view returns (bytes4[] memory _facetFunctionSelectors) { LibDiamond.DiamondStorage storage ds = LibDiamond.diamondStorage(); uint256 numSelectors; _facetFunctionSelectors = new bytes4[](ds.selectorCount); uint256 selectorIndex; // loop through function selectors for (uint256 slotIndex; selectorIndex < ds.selectorCount; slotIndex++) { bytes32 slot = ds.selectorSlots[slotIndex]; for (uint256 selectorSlotIndex; selectorSlotIndex < 8; selectorSlotIndex++) { selectorIndex++; if (selectorIndex > ds.selectorCount) { break; } // " << 5 is the same as multiplying by 32 ( * 32) bytes4 selector = bytes4(slot << (selectorSlotIndex << 5)); address facet = address(bytes20(ds.facets[selector])); if (_facet == facet) { _facetFunctionSelectors[numSelectors] = selector; numSelectors++; } } } // Set the number of selectors in the array assembly { mstore(_facetFunctionSelectors, numSelectors) } } /// @notice Get all the facet addresses used by a diamond. /// @return facetAddresses_ function facetAddresses() external override view returns (address[] memory facetAddresses_) { LibDiamond.DiamondStorage storage ds = LibDiamond.diamondStorage(); facetAddresses_ = new address[](ds.selectorCount); uint256 numFacets; uint256 selectorIndex; // loop through function selectors for (uint256 slotIndex; selectorIndex < ds.selectorCount; slotIndex++) { bytes32 slot = ds.selectorSlots[slotIndex]; for (uint256 selectorSlotIndex; selectorSlotIndex < 8; selectorSlotIndex++) { selectorIndex++; if (selectorIndex > ds.selectorCount) { break; } // " << 5 is the same as multiplying by 32 ( * 32) bytes4 selector = bytes4(slot << (selectorSlotIndex << 5)); address facetAddress_ = address(bytes20(ds.facets[selector])); bool continueLoop; for (uint256 facetIndex; facetIndex < numFacets; facetIndex++) { if (facetAddress_ == facetAddresses_[facetIndex]) { continueLoop = true; break; } } if (continueLoop) { continue; } facetAddresses_[numFacets] = facetAddress_; numFacets++; } } // Set the number of facet addresses in the array assembly { mstore(facetAddresses_, numFacets) } } /// @notice Gets the facet that supports the given selector. /// @dev If facet is not found return address(0). /// @param _functionSelector The function selector. /// @return facetAddress_ The facet address. function facetAddress(bytes4 _functionSelector) external override view returns (address facetAddress_) { LibDiamond.DiamondStorage storage ds = LibDiamond.diamondStorage(); facetAddress_ = address(bytes20(ds.facets[_functionSelector])); } // This implements ERC-165. function supportsInterface(bytes4 _interfaceId) external override view returns (bool) { LibDiamond.DiamondStorage storage ds = LibDiamond.diamondStorage(); return ds.supportedInterfaces[_interfaceId]; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /******************************************************************************\ * Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen) * EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535 /******************************************************************************/ import { IDiamondCut } from "../interfaces/IDiamondCut.sol"; // Remember to add the loupe functions from DiamondLoupeFacet to the diamond. // The loupe functions are required by the EIP2535 Diamonds standard error InitializationFunctionReverted(address _initializationContractAddress, bytes _calldata); library LibDiamond { bytes32 constant DIAMOND_STORAGE_POSITION = keccak256("diamond.standard.diamond.storage"); struct DiamondStorage { // maps function selectors to the facets that execute the functions. // and maps the selectors to their position in the selectorSlots array. // func selector => address facet, selector position mapping(bytes4 => bytes32) facets; // array of slots of function selectors. // each slot holds 8 function selectors. mapping(uint256 => bytes32) selectorSlots; // The number of function selectors in selectorSlots uint16 selectorCount; // Used to query if a contract implements an interface. // Used to implement ERC-165. mapping(bytes4 => bool) supportedInterfaces; // owner of the contract address contractOwner; } function diamondStorage() internal pure returns (DiamondStorage storage ds) { bytes32 position = DIAMOND_STORAGE_POSITION; assembly { ds.slot := position } } event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); function setContractOwner(address _newOwner) internal { DiamondStorage storage ds = diamondStorage(); address previousOwner = ds.contractOwner; ds.contractOwner = _newOwner; emit OwnershipTransferred(previousOwner, _newOwner); } function contractOwner() internal view returns (address contractOwner_) { contractOwner_ = diamondStorage().contractOwner; } function enforceIsContractOwner() internal view { require(msg.sender == diamondStorage().contractOwner, "LibDiamond: Must be contract owner"); } event DiamondCut(IDiamondCut.FacetCut[] _diamondCut, address _init, bytes _calldata); bytes32 constant CLEAR_ADDRESS_MASK = bytes32(uint256(0xffffffffffffffffffffffff)); bytes32 constant CLEAR_SELECTOR_MASK = bytes32(uint256(0xffffffff << 224)); // Internal function version of diamondCut // This code is almost the same as the external diamondCut, // except it is using 'Facet[] memory _diamondCut' instead of // 'Facet[] calldata _diamondCut'. // The code is duplicated to prevent copying calldata to memory which // causes an error for a two dimensional array. function diamondCut( IDiamondCut.FacetCut[] memory _diamondCut, address _init, bytes memory _calldata ) internal { DiamondStorage storage ds = diamondStorage(); uint256 originalSelectorCount = ds.selectorCount; uint256 selectorCount = originalSelectorCount; bytes32 selectorSlot; // Check if last selector slot is not full // "selectorCount & 7" is a gas efficient modulo by eight "selectorCount % 8" if (selectorCount & 7 > 0) { // get last selectorSlot // "selectorSlot >> 3" is a gas efficient division by 8 "selectorSlot / 8" selectorSlot = ds.selectorSlots[selectorCount >> 3]; } // loop through diamond cut for (uint256 facetIndex; facetIndex < _diamondCut.length; facetIndex++) { (selectorCount, selectorSlot) = addReplaceRemoveFacetSelectors( selectorCount, selectorSlot, _diamondCut[facetIndex].facetAddress, _diamondCut[facetIndex].action, _diamondCut[facetIndex].functionSelectors ); } if (selectorCount != originalSelectorCount) { ds.selectorCount = uint16(selectorCount); } // If last selector slot is not full // "selectorCount & 7" is a gas efficient modulo by eight "selectorCount % 8" if (selectorCount & 7 > 0) { // "selectorSlot >> 3" is a gas efficient division by 8 "selectorSlot / 8" ds.selectorSlots[selectorCount >> 3] = selectorSlot; } emit DiamondCut(_diamondCut, _init, _calldata); initializeDiamondCut(_init, _calldata); } function addReplaceRemoveFacetSelectors( uint256 _selectorCount, bytes32 _selectorSlot, address _newFacetAddress, IDiamondCut.FacetCutAction _action, bytes4[] memory _selectors ) internal returns (uint256, bytes32) { DiamondStorage storage ds = diamondStorage(); require(_selectors.length > 0, "LibDiamondCut: No selectors in facet to cut"); if (_action == IDiamondCut.FacetCutAction.Add) { enforceHasContractCode(_newFacetAddress, "LibDiamondCut: Add facet has no code"); for (uint256 selectorIndex; selectorIndex < _selectors.length; selectorIndex++) { bytes4 selector = _selectors[selectorIndex]; bytes32 oldFacet = ds.facets[selector]; require(address(bytes20(oldFacet)) == address(0), "LibDiamondCut: Can't add function that already exists"); // add facet for selector ds.facets[selector] = bytes20(_newFacetAddress) | bytes32(_selectorCount); // "_selectorCount & 7" is a gas efficient modulo by eight "_selectorCount % 8" // " << 5 is the same as multiplying by 32 ( * 32) uint256 selectorInSlotPosition = (_selectorCount & 7) << 5; // clear selector position in slot and add selector _selectorSlot = (_selectorSlot & ~(CLEAR_SELECTOR_MASK >> selectorInSlotPosition)) | (bytes32(selector) >> selectorInSlotPosition); // if slot is full then write it to storage if (selectorInSlotPosition == 224) { // "_selectorSlot >> 3" is a gas efficient division by 8 "_selectorSlot / 8" ds.selectorSlots[_selectorCount >> 3] = _selectorSlot; _selectorSlot = 0; } _selectorCount++; } } else if (_action == IDiamondCut.FacetCutAction.Replace) { enforceHasContractCode(_newFacetAddress, "LibDiamondCut: Replace facet has no code"); for (uint256 selectorIndex; selectorIndex < _selectors.length; selectorIndex++) { bytes4 selector = _selectors[selectorIndex]; bytes32 oldFacet = ds.facets[selector]; address oldFacetAddress = address(bytes20(oldFacet)); // only useful if immutable functions exist require(oldFacetAddress != address(this), "LibDiamondCut: Can't replace immutable function"); require(oldFacetAddress != _newFacetAddress, "LibDiamondCut: Can't replace function with same function"); require(oldFacetAddress != address(0), "LibDiamondCut: Can't replace function that doesn't exist"); // replace old facet address ds.facets[selector] = (oldFacet & CLEAR_ADDRESS_MASK) | bytes20(_newFacetAddress); } } else if (_action == IDiamondCut.FacetCutAction.Remove) { require(_newFacetAddress == address(0), "LibDiamondCut: Remove facet address must be address(0)"); // "_selectorCount >> 3" is a gas efficient division by 8 "_selectorCount / 8" uint256 selectorSlotCount = _selectorCount >> 3; // "_selectorCount & 7" is a gas efficient modulo by eight "_selectorCount % 8" uint256 selectorInSlotIndex = _selectorCount & 7; for (uint256 selectorIndex; selectorIndex < _selectors.length; selectorIndex++) { if (_selectorSlot == 0) { // get last selectorSlot selectorSlotCount--; _selectorSlot = ds.selectorSlots[selectorSlotCount]; selectorInSlotIndex = 7; } else { selectorInSlotIndex--; } bytes4 lastSelector; uint256 oldSelectorsSlotCount; uint256 oldSelectorInSlotPosition; // adding a block here prevents stack too deep error { bytes4 selector = _selectors[selectorIndex]; bytes32 oldFacet = ds.facets[selector]; require(address(bytes20(oldFacet)) != address(0), "LibDiamondCut: Can't remove function that doesn't exist"); // only useful if immutable functions exist require(address(bytes20(oldFacet)) != address(this), "LibDiamondCut: Can't remove immutable function"); // replace selector with last selector in ds.facets // gets the last selector // " << 5 is the same as multiplying by 32 ( * 32) lastSelector = bytes4(_selectorSlot << (selectorInSlotIndex << 5)); if (lastSelector != selector) { // update last selector slot position info ds.facets[lastSelector] = (oldFacet & CLEAR_ADDRESS_MASK) | bytes20(ds.facets[lastSelector]); } delete ds.facets[selector]; uint256 oldSelectorCount = uint16(uint256(oldFacet)); // "oldSelectorCount >> 3" is a gas efficient division by 8 "oldSelectorCount / 8" oldSelectorsSlotCount = oldSelectorCount >> 3; // "oldSelectorCount & 7" is a gas efficient modulo by eight "oldSelectorCount % 8" // " << 5 is the same as multiplying by 32 ( * 32) oldSelectorInSlotPosition = (oldSelectorCount & 7) << 5; } if (oldSelectorsSlotCount != selectorSlotCount) { bytes32 oldSelectorSlot = ds.selectorSlots[oldSelectorsSlotCount]; // clears the selector we are deleting and puts the last selector in its place. oldSelectorSlot = (oldSelectorSlot & ~(CLEAR_SELECTOR_MASK >> oldSelectorInSlotPosition)) | (bytes32(lastSelector) >> oldSelectorInSlotPosition); // update storage with the modified slot ds.selectorSlots[oldSelectorsSlotCount] = oldSelectorSlot; } else { // clears the selector we are deleting and puts the last selector in its place. _selectorSlot = (_selectorSlot & ~(CLEAR_SELECTOR_MASK >> oldSelectorInSlotPosition)) | (bytes32(lastSelector) >> oldSelectorInSlotPosition); } if (selectorInSlotIndex == 0) { delete ds.selectorSlots[selectorSlotCount]; _selectorSlot = 0; } } _selectorCount = selectorSlotCount * 8 + selectorInSlotIndex; } else { revert("LibDiamondCut: Incorrect FacetCutAction"); } return (_selectorCount, _selectorSlot); } function initializeDiamondCut(address _init, bytes memory _calldata) internal { if (_init == address(0)) { return; } enforceHasContractCode(_init, "LibDiamondCut: _init address has no code"); (bool success, bytes memory error) = _init.delegatecall(_calldata); if (!success) { if (error.length > 0) { // bubble up error /// @solidity memory-safe-assembly assembly { let returndata_size := mload(error) revert(add(32, error), returndata_size) } } else { revert InitializationFunctionReverted(_init, _calldata); } } } function enforceHasContractCode(address _contract, string memory _errorMessage) internal view { uint256 contractSize; assembly { contractSize := extcodesize(_contract) } require(contractSize > 0, _errorMessage); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /******************************************************************************\ * Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen) * EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535 /******************************************************************************/ interface IDiamondCut { enum FacetCutAction {Add, Replace, Remove} // Add=0, Replace=1, Remove=2 struct FacetCut { address facetAddress; FacetCutAction action; bytes4[] functionSelectors; } /// @notice Add/replace/remove any number of functions and optionally execute /// a function with delegatecall /// @param _diamondCut Contains the facet addresses and function selectors /// @param _init The address of the contract or facet to execute _calldata /// @param _calldata A function call, including function selector and arguments /// _calldata is executed with delegatecall on _init function diamondCut( FacetCut[] calldata _diamondCut, address _init, bytes calldata _calldata ) external; event DiamondCut(FacetCut[] _diamondCut, address _init, bytes _calldata); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /******************************************************************************\ * Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen) * EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535 /******************************************************************************/ // A loupe is a small magnifying glass used to look at diamonds. // These functions look at diamonds interface IDiamondLoupe { /// These functions are expected to be called frequently /// by tools. struct Facet { address facetAddress; bytes4[] functionSelectors; } /// @notice Gets all facet addresses and their four byte function selectors. /// @return facets_ Facet function facets() external view returns (Facet[] memory facets_); /// @notice Gets all the function selectors supported by a specific facet. /// @param _facet The facet address. /// @return facetFunctionSelectors_ function facetFunctionSelectors(address _facet) external view returns (bytes4[] memory facetFunctionSelectors_); /// @notice Get all the facet addresses used by a diamond. /// @return facetAddresses_ function facetAddresses() external view returns (address[] memory facetAddresses_); /// @notice Gets the facet that supports the given selector. /// @dev If facet is not found return address(0). /// @param _functionSelector The function selector. /// @return facetAddress_ The facet address. function facetAddress(bytes4 _functionSelector) external view returns (address facetAddress_); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /// @title ERC-173 Contract Ownership Standard /// Note: the ERC-165 identifier for this interface is 0x7f5828d0 /* is ERC165 */ interface IERC173 { /// @dev This emits when ownership of a contract changes. event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /// @notice Get the address of the owner /// @return owner_ The address of the owner. function owner() external view returns (address owner_); /// @notice Set the address of the new owner of the contract /// @dev Set _newOwner to address(0) to renounce any ownership. /// @param _newOwner The address of the new owner of the contract function transferOwnership(address _newOwner) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165Upgradeable { /** * @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); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface IERC165 { /// @notice Query if a contract implements an interface /// @param interfaceId The interface identifier, as specified in ERC-165 /// @dev Interface identification is specified in ERC-165. This function /// uses less than 30,000 gas. /// @return `true` if the contract implements `interfaceID` and /// `interfaceID` is not 0xffffffff, `false` otherwise function supportsInterface(bytes4 interfaceId) external view returns (bool); }
{ "optimizer": { "enabled": true, "runs": 99999 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"contractOwner","type":"address"},{"internalType":"address","name":"diamondCutFacet","type":"address"},{"internalType":"address","name":"diamondLoupeFacet","type":"address"}],"stateMutability":"payable","type":"constructor"},{"inputs":[{"internalType":"address","name":"_initializationContractAddress","type":"address"},{"internalType":"bytes","name":"_calldata","type":"bytes"}],"name":"InitializationFunctionReverted","type":"error"},{"stateMutability":"payable","type":"fallback"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000003d551bc6bb2da8619d571a9f93ef6a22ef8b6f3d000000000000000000000000ac231ecb976681da1970c34fa10d8e7e9b8983ad00000000000000000000000005c3c41b4176cfeb10350264f0507b14d0cfeec7
-----Decoded View---------------
Arg [0] : contractOwner (address): 0x3d551Bc6Bb2da8619d571a9F93EF6a22EF8B6F3d
Arg [1] : diamondCutFacet (address): 0xac231eCb976681da1970C34FA10D8E7e9b8983AD
Arg [2] : diamondLoupeFacet (address): 0x05c3c41B4176cfEB10350264F0507b14D0cFeeC7
-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 0000000000000000000000003d551bc6bb2da8619d571a9f93ef6a22ef8b6f3d
Arg [1] : 000000000000000000000000ac231ecb976681da1970c34fa10d8e7e9b8983ad
Arg [2] : 00000000000000000000000005c3c41b4176cfeb10350264f0507b14d0cfeec7
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