编译器
0.8.15+commit.e14f2714
文件 1 的 20：BiteByViper.sol
pragma solidity ^0.8.0;
import "./Metadata.sol";
import "./Viper.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/introspection/ERC165.sol";
contract BiteByViper is Ownable, IERC721, IERC721Metadata, ERC165 {
address public viperAddress;
address public metadata;
uint256 public totalSupply;
mapping(address => uint256) private _bites;
mapping(uint256 => address) private _owners;
constructor(address viperAddress_, address metadata_) {
viperAddress = viperAddress_;
metadata = metadata_;
}
function updateViperAddress(address viperAddress_) public onlyOwner {
viperAddress = viperAddress_;
}
function updateMetadataAddress(address metadata_) public onlyOwner {
metadata = metadata_;
}
function bite(address from, address to, uint256 tokenId, uint256 length) public {
require(msg.sender == viperAddress, "ONLY VIPER");
uint256 lastTokenId = getCombinedTokenId(from, tokenId, length - 1);
require(_owners[lastTokenId] != to, "YOU JUST BIT THEM");
uint256 newTokenId = getCombinedTokenId(from, tokenId, length);
_bites[to]++;
_owners[newTokenId] = to;
totalSupply++;
emit Transfer(from, to, newTokenId);
}
function getCombinedTokenId(
address from,
uint256 tokenId,
uint256 length
) public pure returns (uint256 combinedTokenId) {
uint256 bitShiftedTokenId = tokenId << 160;
uint256 addressAndTokenId = bitShiftedTokenId | uint256(uint160(from));
uint256 bitShiftedLength = length << 169;
combinedTokenId = bitShiftedLength | addressAndTokenId;
return combinedTokenId;
}
function extractLength(uint256 combinedtokenId) public pure returns (uint256 length) {
length = (combinedtokenId >> 169);
}
function extractTokenId(uint256 combinedTokenId) public pure returns (uint256 tokenId) {
uint256 blocker = uint256(0x1FF);
tokenId = (combinedTokenId >> 160) & blocker;
}
function extractAddress(uint256 tokenId) public pure returns (address ownerOfToken) {
uint256 blocker = uint256(uint160(0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF));
ownerOfToken = address(uint160(tokenId & blocker));
}
function tokenURI(uint256 id) public view override(IERC721Metadata) returns (string memory) {
return Metadata(metadata).getMetadata(id);
}
function name() external pure override(IERC721Metadata) returns (string memory) {
return "BiteByViper";
}
function symbol() external pure override(IERC721Metadata) returns (string memory) {
return "BBVPR";
}
function balanceOf(address owner) external view override(IERC721) returns (uint256) {
return _bites[owner];
}
function ownerOf(uint256 tokenId) external view override(IERC721) returns (address) {
return _owners[tokenId];
}
function getApproved(uint256) external view override(IERC721) returns (address) {}
function isApprovedForAll(address, address) external view override(IERC721) returns (bool) {}
function transferFrom(address, address, uint256) public pure override(IERC721) {
revert("VIPER BITES CAN'T BE CURED");
}
function safeTransferFrom(address, address, uint256) external pure override(IERC721) {
revert("VIPER BITES CAN'T BE CURED");
}
function safeTransferFrom(address, address, uint256, bytes calldata) external pure override(IERC721) {
revert("VIPER BITES CAN'T BE CURED");
}
function approve(address, uint256) external pure override(IERC721) {
revert("VIPER BITES CAN'T BE CURED");
}
function setApprovalForAll(address, bool) external pure override(IERC721) {
revert("VIPER BITES CAN'T BE CURED");
}
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
super.supportsInterface(interfaceId);
}
}
文件 2 的 20：Context.sol
pragma solidity ^0.8.0;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
文件 3 的 20：ERC165.sol
pragma solidity ^0.8.0;
import "./IERC165.sol";
abstract contract ERC165 is IERC165 {
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
文件 4 的 20：ERC2981.sol
pragma solidity ^0.8.0;
import "../../interfaces/IERC2981.sol";
import "../../utils/introspection/ERC165.sol";
abstract contract ERC2981 is IERC2981, ERC165 {
struct RoyaltyInfo {
address receiver;
uint96 royaltyFraction;
}
RoyaltyInfo private _defaultRoyaltyInfo;
mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo;
function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) {
return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId);
}
function royaltyInfo(uint256 _tokenId, uint256 _salePrice) public view virtual override returns (address, uint256) {
RoyaltyInfo memory royalty = _tokenRoyaltyInfo[_tokenId];
if (royalty.receiver == address(0)) {
royalty = _defaultRoyaltyInfo;
}
uint256 royaltyAmount = (_salePrice * royalty.royaltyFraction) / _feeDenominator();
return (royalty.receiver, royaltyAmount);
}
function _feeDenominator() internal pure virtual returns (uint96) {
return 10000;
}
function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual {
require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice");
require(receiver != address(0), "ERC2981: invalid receiver");
_defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator);
}
function _deleteDefaultRoyalty() internal virtual {
delete _defaultRoyaltyInfo;
}
function _setTokenRoyalty(
uint256 tokenId,
address receiver,
uint96 feeNumerator
) internal virtual {
require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice");
require(receiver != address(0), "ERC2981: Invalid parameters");
_tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator);
}
function _resetTokenRoyalty(uint256 tokenId) internal virtual {
delete _tokenRoyaltyInfo[tokenId];
}
}
文件 5 的 20：ERC721A.sol
pragma solidity ^0.8.4;
import './IERC721A.sol';
interface ERC721A__IERC721Receiver {
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
contract ERC721A is IERC721A {
struct TokenApprovalRef {
address value;
}
uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;
uint256 private constant _BITPOS_NUMBER_MINTED = 64;
uint256 private constant _BITPOS_NUMBER_BURNED = 128;
uint256 private constant _BITPOS_AUX = 192;
uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;
uint256 private constant _BITPOS_START_TIMESTAMP = 160;
uint256 private constant _BITMASK_BURNED = 1 << 224;
uint256 private constant _BITPOS_NEXT_INITIALIZED = 225;
uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225;
uint256 private constant _BITPOS_EXTRA_DATA = 232;
uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1;
uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1;
uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000;
bytes32 private constant _TRANSFER_EVENT_SIGNATURE =
0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;
uint256 private _currentIndex;
uint256 private _burnCounter;
string private _name;
string private _symbol;
mapping(uint256 => uint256) private _packedOwnerships;
mapping(address => uint256) private _packedAddressData;
mapping(uint256 => TokenApprovalRef) private _tokenApprovals;
mapping(address => mapping(address => bool)) private _operatorApprovals;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
_currentIndex = _startTokenId();
}
function _startTokenId() internal view virtual returns (uint256) {
return 0;
}
function _nextTokenId() internal view virtual returns (uint256) {
return _currentIndex;
}
function totalSupply() public view virtual override returns (uint256) {
unchecked {
return _currentIndex - _burnCounter - _startTokenId();
}
}
function _totalMinted() internal view virtual returns (uint256) {
unchecked {
return _currentIndex - _startTokenId();
}
}
function _totalBurned() internal view virtual returns (uint256) {
return _burnCounter;
}
function balanceOf(address owner) public view virtual override returns (uint256) {
if (owner == address(0)) revert BalanceQueryForZeroAddress();
return _packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY;
}
function _numberMinted(address owner) internal view returns (uint256) {
return (_packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) & _BITMASK_ADDRESS_DATA_ENTRY;
}
function _numberBurned(address owner) internal view returns (uint256) {
return (_packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) & _BITMASK_ADDRESS_DATA_ENTRY;
}
function _getAux(address owner) internal view returns (uint64) {
return uint64(_packedAddressData[owner] >> _BITPOS_AUX);
}
function _setAux(address owner, uint64 aux) internal virtual {
uint256 packed = _packedAddressData[owner];
uint256 auxCasted;
assembly {
auxCasted := aux
}
packed = (packed & _BITMASK_AUX_COMPLEMENT) | (auxCasted << _BITPOS_AUX);
_packedAddressData[owner] = packed;
}
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return
interfaceId == 0x01ffc9a7 ||
interfaceId == 0x80ac58cd ||
interfaceId == 0x5b5e139f;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
if (!_exists(tokenId)) revert URIQueryForNonexistentToken();
string memory baseURI = _baseURI();
return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, _toString(tokenId))) : '';
}
function _baseURI() internal view virtual returns (string memory) {
return '';
}
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
return address(uint160(_packedOwnershipOf(tokenId)));
}
function _ownershipOf(uint256 tokenId) internal view virtual returns (TokenOwnership memory) {
return _unpackedOwnership(_packedOwnershipOf(tokenId));
}
function _ownershipAt(uint256 index) internal view virtual returns (TokenOwnership memory) {
return _unpackedOwnership(_packedOwnerships[index]);
}
function _initializeOwnershipAt(uint256 index) internal virtual {
if (_packedOwnerships[index] == 0) {
_packedOwnerships[index] = _packedOwnershipOf(index);
}
}
function _packedOwnershipOf(uint256 tokenId) private view returns (uint256) {
uint256 curr = tokenId;
unchecked {
if (_startTokenId() <= curr)
if (curr < _currentIndex) {
uint256 packed = _packedOwnerships[curr];
if (packed & _BITMASK_BURNED == 0) {
while (packed == 0) {
packed = _packedOwnerships[--curr];
}
return packed;
}
}
}
revert OwnerQueryForNonexistentToken();
}
function _unpackedOwnership(uint256 packed) private pure returns (TokenOwnership memory ownership) {
ownership.addr = address(uint160(packed));
ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP);
ownership.burned = packed & _BITMASK_BURNED != 0;
ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA);
}
function _packOwnershipData(address owner, uint256 flags) private view returns (uint256 result) {
assembly {
owner := and(owner, _BITMASK_ADDRESS)
result := or(owner, or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags))
}
}
function _nextInitializedFlag(uint256 quantity) private pure returns (uint256 result) {
assembly {
result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1))
}
}
function approve(address to, uint256 tokenId) public payable virtual override {
address owner = ownerOf(tokenId);
if (_msgSenderERC721A() != owner)
if (!isApprovedForAll(owner, _msgSenderERC721A())) {
revert ApprovalCallerNotOwnerNorApproved();
}
_tokenApprovals[tokenId].value = to;
emit Approval(owner, to, tokenId);
}
function getApproved(uint256 tokenId) public view virtual override returns (address) {
if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();
return _tokenApprovals[tokenId].value;
}
function setApprovalForAll(address operator, bool approved) public virtual override {
_operatorApprovals[_msgSenderERC721A()][operator] = approved;
emit ApprovalForAll(_msgSenderERC721A(), operator, approved);
}
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return
_startTokenId() <= tokenId &&
tokenId < _currentIndex &&
_packedOwnerships[tokenId] & _BITMASK_BURNED == 0;
}
function _isSenderApprovedOrOwner(
address approvedAddress,
address owner,
address msgSender
) private pure returns (bool result) {
assembly {
owner := and(owner, _BITMASK_ADDRESS)
msgSender := and(msgSender, _BITMASK_ADDRESS)
result := or(eq(msgSender, owner), eq(msgSender, approvedAddress))
}
}
function _getApprovedSlotAndAddress(uint256 tokenId)
private
view
returns (uint256 approvedAddressSlot, address approvedAddress)
{
TokenApprovalRef storage tokenApproval = _tokenApprovals[tokenId];
assembly {
approvedAddressSlot := tokenApproval.slot
approvedAddress := sload(approvedAddressSlot)
}
}
function transferFrom(
address from,
address to,
uint256 tokenId
) public payable virtual override {
uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);
if (address(uint160(prevOwnershipPacked)) != from) revert TransferFromIncorrectOwner();
(uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);
if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))
if (!isApprovedForAll(from, _msgSenderERC721A())) revert TransferCallerNotOwnerNorApproved();
if (to == address(0)) revert TransferToZeroAddress();
_beforeTokenTransfers(from, to, tokenId, 1);
assembly {
if approvedAddress {
sstore(approvedAddressSlot, 0)
}
}
unchecked {
--_packedAddressData[from];
++_packedAddressData[to];
_packedOwnerships[tokenId] = _packOwnershipData(
to,
_BITMASK_NEXT_INITIALIZED | _nextExtraData(from, to, prevOwnershipPacked)
);
if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
uint256 nextTokenId = tokenId + 1;
if (_packedOwnerships[nextTokenId] == 0) {
if (nextTokenId != _currentIndex) {
_packedOwnerships[nextTokenId] = prevOwnershipPacked;
}
}
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public payable virtual override {
safeTransferFrom(from, to, tokenId, '');
}
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public payable virtual override {
transferFrom(from, to, tokenId);
if (to.code.length != 0)
if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
revert TransferToNonERC721ReceiverImplementer();
}
}
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
function _checkContractOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
try ERC721A__IERC721Receiver(to).onERC721Received(_msgSenderERC721A(), from, tokenId, _data) returns (
bytes4 retval
) {
return retval == ERC721A__IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert TransferToNonERC721ReceiverImplementer();
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
}
function _mint(address to, uint256 quantity) internal virtual {
uint256 startTokenId = _currentIndex;
if (quantity == 0) revert MintZeroQuantity();
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
unchecked {
_packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);
_packedOwnerships[startTokenId] = _packOwnershipData(
to,
_nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)
);
uint256 toMasked;
uint256 end = startTokenId + quantity;
assembly {
toMasked := and(to, _BITMASK_ADDRESS)
log4(
0,
0,
_TRANSFER_EVENT_SIGNATURE,
0,
toMasked,
startTokenId
)
for {
let tokenId := add(startTokenId, 1)
} iszero(eq(tokenId, end)) {
tokenId := add(tokenId, 1)
} {
log4(0, 0, _TRANSFER_EVENT_SIGNATURE, 0, toMasked, tokenId)
}
}
if (toMasked == 0) revert MintToZeroAddress();
_currentIndex = end;
}
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
function _mintERC2309(address to, uint256 quantity) internal virtual {
uint256 startTokenId = _currentIndex;
if (to == address(0)) revert MintToZeroAddress();
if (quantity == 0) revert MintZeroQuantity();
if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT) revert MintERC2309QuantityExceedsLimit();
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
unchecked {
_packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);
_packedOwnerships[startTokenId] = _packOwnershipData(
to,
_nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)
);
emit ConsecutiveTransfer(startTokenId, startTokenId + quantity - 1, address(0), to);
_currentIndex = startTokenId + quantity;
}
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal virtual {
_mint(to, quantity);
unchecked {
if (to.code.length != 0) {
uint256 end = _currentIndex;
uint256 index = end - quantity;
do {
if (!_checkContractOnERC721Received(address(0), to, index++, _data)) {
revert TransferToNonERC721ReceiverImplementer();
}
} while (index < end);
if (_currentIndex != end) revert();
}
}
}
function _safeMint(address to, uint256 quantity) internal virtual {
_safeMint(to, quantity, '');
}
function _burn(uint256 tokenId) internal virtual {
_burn(tokenId, false);
}
function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);
address from = address(uint160(prevOwnershipPacked));
(uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);
if (approvalCheck) {
if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))
if (!isApprovedForAll(from, _msgSenderERC721A())) revert TransferCallerNotOwnerNorApproved();
}
_beforeTokenTransfers(from, address(0), tokenId, 1);
assembly {
if approvedAddress {
sstore(approvedAddressSlot, 0)
}
}
unchecked {
_packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1;
_packedOwnerships[tokenId] = _packOwnershipData(
from,
(_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) | _nextExtraData(from, address(0), prevOwnershipPacked)
);
if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
uint256 nextTokenId = tokenId + 1;
if (_packedOwnerships[nextTokenId] == 0) {
if (nextTokenId != _currentIndex) {
_packedOwnerships[nextTokenId] = prevOwnershipPacked;
}
}
}
}
emit Transfer(from, address(0), tokenId);
_afterTokenTransfers(from, address(0), tokenId, 1);
unchecked {
_burnCounter++;
}
}
function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual {
uint256 packed = _packedOwnerships[index];
if (packed == 0) revert OwnershipNotInitializedForExtraData();
uint256 extraDataCasted;
assembly {
extraDataCasted := extraData
}
packed = (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) | (extraDataCasted << _BITPOS_EXTRA_DATA);
_packedOwnerships[index] = packed;
}
function _extraData(
address from,
address to,
uint24 previousExtraData
) internal view virtual returns (uint24) {}
function _nextExtraData(
address from,
address to,
uint256 prevOwnershipPacked
) private view returns (uint256) {
uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA);
return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA;
}
function _msgSenderERC721A() internal view virtual returns (address) {
return msg.sender;
}
function _toString(uint256 value) internal pure virtual returns (string memory str) {
assembly {
let m := add(mload(0x40), 0xa0)
mstore(0x40, m)
str := sub(m, 0x20)
mstore(str, 0)
let end := str
for { let temp := value } 1 {} {
str := sub(str, 1)
mstore8(str, add(48, mod(temp, 10)))
temp := div(temp, 10)
if iszero(temp) { break }
}
let length := sub(end, str)
str := sub(str, 0x20)
mstore(str, length)
}
}
}
文件 6 的 20：ERC721AQueryable.sol
pragma solidity ^0.8.4;
import './IERC721AQueryable.sol';
import '../ERC721A.sol';
abstract contract ERC721AQueryable is ERC721A, IERC721AQueryable {
function explicitOwnershipOf(uint256 tokenId) public view virtual override returns (TokenOwnership memory) {
TokenOwnership memory ownership;
if (tokenId < _startTokenId() || tokenId >= _nextTokenId()) {
return ownership;
}
ownership = _ownershipAt(tokenId);
if (ownership.burned) {
return ownership;
}
return _ownershipOf(tokenId);
}
function explicitOwnershipsOf(uint256[] calldata tokenIds)
external
view
virtual
override
returns (TokenOwnership[] memory)
{
unchecked {
uint256 tokenIdsLength = tokenIds.length;
TokenOwnership[] memory ownerships = new TokenOwnership[](tokenIdsLength);
for (uint256 i; i != tokenIdsLength; ++i) {
ownerships[i] = explicitOwnershipOf(tokenIds[i]);
}
return ownerships;
}
}
function tokensOfOwnerIn(
address owner,
uint256 start,
uint256 stop
) external view virtual override returns (uint256[] memory) {
unchecked {
if (start >= stop) revert InvalidQueryRange();
uint256 tokenIdsIdx;
uint256 stopLimit = _nextTokenId();
if (start < _startTokenId()) {
start = _startTokenId();
}
if (stop > stopLimit) {
stop = stopLimit;
}
uint256 tokenIdsMaxLength = balanceOf(owner);
if (start < stop) {
uint256 rangeLength = stop - start;
if (rangeLength < tokenIdsMaxLength) {
tokenIdsMaxLength = rangeLength;
}
} else {
tokenIdsMaxLength = 0;
}
uint256[] memory tokenIds = new uint256[](tokenIdsMaxLength);
if (tokenIdsMaxLength == 0) {
return tokenIds;
}
TokenOwnership memory ownership = explicitOwnershipOf(start);
address currOwnershipAddr;
if (!ownership.burned) {
currOwnershipAddr = ownership.addr;
}
for (uint256 i = start; i != stop && tokenIdsIdx != tokenIdsMaxLength; ++i) {
ownership = _ownershipAt(i);
if (ownership.burned) {
continue;
}
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
tokenIds[tokenIdsIdx++] = i;
}
}
assembly {
mstore(tokenIds, tokenIdsIdx)
}
return tokenIds;
}
}
function tokensOfOwner(address owner) external view virtual override returns (uint256[] memory) {
unchecked {
uint256 tokenIdsIdx;
address currOwnershipAddr;
uint256 tokenIdsLength = balanceOf(owner);
uint256[] memory tokenIds = new uint256[](tokenIdsLength);
TokenOwnership memory ownership;
for (uint256 i = _startTokenId(); tokenIdsIdx != tokenIdsLength; ++i) {
ownership = _ownershipAt(i);
if (ownership.burned) {
continue;
}
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
tokenIds[tokenIdsIdx++] = i;
}
}
return tokenIds;
}
}
}
文件 7 的 20：IERC165.sol
pragma solidity ^0.8.0;
interface IERC165 {
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
文件 8 的 20：IERC2981.sol
pragma solidity ^0.8.0;
import "../utils/introspection/IERC165.sol";
interface IERC2981 is IERC165 {
function royaltyInfo(uint256 tokenId, uint256 salePrice)
external
view
returns (address receiver, uint256 royaltyAmount);
}
文件 9 的 20：IERC4906.sol
pragma solidity ^0.8.0;
interface IERC4906 {
event MetadataUpdate(uint256 _tokenId);
event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId);
}
文件 10 的 20：IERC721.sol
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
interface IERC721 is IERC165 {
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
function balanceOf(address owner) external view returns (uint256 balance);
function ownerOf(uint256 tokenId) external view returns (address owner);
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
function approve(address to, uint256 tokenId) external;
function setApprovalForAll(address operator, bool _approved) external;
function getApproved(uint256 tokenId) external view returns (address operator);
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
文件 11 的 20：IERC721A.sol
pragma solidity ^0.8.4;
interface IERC721A {
error ApprovalCallerNotOwnerNorApproved();
error ApprovalQueryForNonexistentToken();
error BalanceQueryForZeroAddress();
error MintToZeroAddress();
error MintZeroQuantity();
error OwnerQueryForNonexistentToken();
error TransferCallerNotOwnerNorApproved();
error TransferFromIncorrectOwner();
error TransferToNonERC721ReceiverImplementer();
error TransferToZeroAddress();
error URIQueryForNonexistentToken();
error MintERC2309QuantityExceedsLimit();
error OwnershipNotInitializedForExtraData();
struct TokenOwnership {
address addr;
uint64 startTimestamp;
bool burned;
uint24 extraData;
}
function totalSupply() external view returns (uint256);
function supportsInterface(bytes4 interfaceId) external view returns (bool);
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
function balanceOf(address owner) external view returns (uint256 balance);
function ownerOf(uint256 tokenId) external view returns (address owner);
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external payable;
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external payable;
function transferFrom(
address from,
address to,
uint256 tokenId
) external payable;
function approve(address to, uint256 tokenId) external payable;
function setApprovalForAll(address operator, bool _approved) external;
function getApproved(uint256 tokenId) external view returns (address operator);
function isApprovedForAll(address owner, address operator) external view returns (bool);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function tokenURI(uint256 tokenId) external view returns (string memory);
event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to);
}
文件 12 的 20：IERC721AQueryable.sol
pragma solidity ^0.8.4;
import '../IERC721A.sol';
interface IERC721AQueryable is IERC721A {
error InvalidQueryRange();
function explicitOwnershipOf(uint256 tokenId) external view returns (TokenOwnership memory);
function explicitOwnershipsOf(uint256[] memory tokenIds) external view returns (TokenOwnership[] memory);
function tokensOfOwnerIn(
address owner,
uint256 start,
uint256 stop
) external view returns (uint256[] memory);
function tokensOfOwner(address owner) external view returns (uint256[] memory);
}
文件 13 的 20：IERC721Metadata.sol
pragma solidity ^0.8.0;
import "../IERC721.sol";
interface IERC721Metadata is IERC721 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function tokenURI(uint256 tokenId) external view returns (string memory);
}
文件 14 的 20：Math.sol
pragma solidity ^0.8.0;
library Math {
enum Rounding {
Down,
Up,
Zero
}
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
function average(uint256 a, uint256 b) internal pure returns (uint256) {
return (a & b) + (a ^ b) / 2;
}
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
return a == 0 ? 0 : (a - 1) / b + 1;
}
function mulDiv(
uint256 x,
uint256 y,
uint256 denominator
) internal pure returns (uint256 result) {
unchecked {
uint256 prod0;
uint256 prod1;
assembly {
let mm := mulmod(x, y, not(0))
prod0 := mul(x, y)
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
if (prod1 == 0) {
return prod0 / denominator;
}
require(denominator > prod1);
uint256 remainder;
assembly {
remainder := mulmod(x, y, denominator)
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
uint256 twos = denominator & (~denominator + 1);
assembly {
denominator := div(denominator, twos)
prod0 := div(prod0, twos)
twos := add(div(sub(0, twos), twos), 1)
}
prod0 |= prod1 * twos;
uint256 inverse = (3 * denominator) ^ 2;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
result = prod0 * inverse;
return result;
}
}
function mulDiv(
uint256 x,
uint256 y,
uint256 denominator,
Rounding rounding
) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 result = 1 << (log2(a) >> 1);
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
}
}
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
}
}
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10**64) {
value /= 10**64;
result += 64;
}
if (value >= 10**32) {
value /= 10**32;
result += 32;
}
if (value >= 10**16) {
value /= 10**16;
result += 16;
}
if (value >= 10**8) {
value /= 10**8;
result += 8;
}
if (value >= 10**4) {
value /= 10**4;
result += 4;
}
if (value >= 10**2) {
value /= 10**2;
result += 2;
}
if (value >= 10**1) {
result += 1;
}
}
return result;
}
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);
}
}
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);
}
}
}
文件 15 的 20：MerkleProof.sol
pragma solidity ^0.8.0;
library MerkleProof {
function verify(
bytes32[] memory proof,
bytes32 root,
bytes32 leaf
) internal pure returns (bool) {
return processProof(proof, leaf) == root;
}
function verifyCalldata(
bytes32[] calldata proof,
bytes32 root,
bytes32 leaf
) internal pure returns (bool) {
return processProofCalldata(proof, leaf) == root;
}
function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
bytes32 computedHash = leaf;
for (uint256 i = 0; i < proof.length; i++) {
computedHash = _hashPair(computedHash, proof[i]);
}
return computedHash;
}
function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {
bytes32 computedHash = leaf;
for (uint256 i = 0; i < proof.length; i++) {
computedHash = _hashPair(computedHash, proof[i]);
}
return computedHash;
}
function multiProofVerify(
bytes32[] memory proof,
bool[] memory proofFlags,
bytes32 root,
bytes32[] memory leaves
) internal pure returns (bool) {
return processMultiProof(proof, proofFlags, leaves) == root;
}
function multiProofVerifyCalldata(
bytes32[] calldata proof,
bool[] calldata proofFlags,
bytes32 root,
bytes32[] memory leaves
) internal pure returns (bool) {
return processMultiProofCalldata(proof, proofFlags, leaves) == root;
}
function processMultiProof(
bytes32[] memory proof,
bool[] memory proofFlags,
bytes32[] memory leaves
) internal pure returns (bytes32 merkleRoot) {
uint256 leavesLen = leaves.length;
uint256 totalHashes = proofFlags.length;
require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof");
bytes32[] memory hashes = new bytes32[](totalHashes);
uint256 leafPos = 0;
uint256 hashPos = 0;
uint256 proofPos = 0;
for (uint256 i = 0; i < totalHashes; i++) {
bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++];
hashes[i] = _hashPair(a, b);
}
if (totalHashes > 0) {
return hashes[totalHashes - 1];
} else if (leavesLen > 0) {
return leaves[0];
} else {
return proof[0];
}
}
function processMultiProofCalldata(
bytes32[] calldata proof,
bool[] calldata proofFlags,
bytes32[] memory leaves
) internal pure returns (bytes32 merkleRoot) {
uint256 leavesLen = leaves.length;
uint256 totalHashes = proofFlags.length;
require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof");
bytes32[] memory hashes = new bytes32[](totalHashes);
uint256 leafPos = 0;
uint256 hashPos = 0;
uint256 proofPos = 0;
for (uint256 i = 0; i < totalHashes; i++) {
bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++];
hashes[i] = _hashPair(a, b);
}
if (totalHashes > 0) {
return hashes[totalHashes - 1];
} else if (leavesLen > 0) {
return leaves[0];
} else {
return proof[0];
}
}
function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {
return a < b ? _efficientHash(a, b) : _efficientHash(b, a);
}
function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
assembly {
mstore(0x00, a)
mstore(0x20, b)
value := keccak256(0x00, 0x40)
}
}
}
文件 16 的 20：Metadata.sol
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
import "./Viper.sol";
contract Metadata is Ownable {
constructor() {}
string public baseURI = "https://viper.folia.app/v1/metadata/";
function setbaseURI(string memory baseURI_) public onlyOwner {
baseURI = baseURI_;
}
function getMetadata(uint256 tokenId) public view returns (string memory) {
return string(abi.encodePacked(baseURI, Strings.toString(tokenId)));
}
}
文件 17 的 20：Ownable.sol
pragma solidity ^0.8.0;
import "../utils/Context.sol";
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_transferOwnership(_msgSender());
}
modifier onlyOwner() {
_checkOwner();
_;
}
function owner() public view virtual returns (address) {
return _owner;
}
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
文件 18 的 20：ReentrancyGuard.sol
pragma solidity ^0.8.0;
abstract contract ReentrancyGuard {
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
_status = _ENTERED;
}
function _nonReentrantAfter() private {
_status = _NOT_ENTERED;
}
}
文件 19 的 20：Strings.sol
pragma solidity ^0.8.0;
import "./math/Math.sol";
library Strings {
bytes16 private constant _SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
function toString(uint256 value) internal pure returns (string memory) {
unchecked {
uint256 length = Math.log10(value) + 1;
string memory buffer = new string(length);
uint256 ptr;
assembly {
ptr := add(buffer, add(32, length))
}
while (true) {
ptr--;
assembly {
mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
}
value /= 10;
if (value == 0) break;
}
return buffer;
}
}
function toHexString(uint256 value) internal pure returns (string memory) {
unchecked {
return toHexString(value, Math.log256(value) + 1);
}
}
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
}
文件 20 的 20：Viper.sol
pragma solidity ^0.8.0;
import "./Metadata.sol";
import "./BiteByViper.sol";
import "./IERC4906.sol";
import "erc721a/contracts/extensions/ERC721AQueryable.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol";
import "@openzeppelin/contracts/token/common/ERC2981.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import {MerkleProof} from "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
contract Viper is ERC721AQueryable, Ownable, ERC2981, IERC4906, ReentrancyGuard {
bool public paused = false;
uint256 public constant MAX_SUPPLY = 486;
uint256 public price = 0.055555555555555555 ether;
address public biteByViper;
address public metadata;
address public splitter;
uint256[MAX_SUPPLY] public lengths;
uint256 public startdate = 1689098400;
uint256 public premint = 1689087600;
bytes32 public merkleRoot = 0xf78f6412ef155d654600b79b83071b194c4c94f1212bb3feea35d4a290c3d0c9;
event EthMoved(address indexed to, bool indexed success, bytes returnData, uint256 amount);
constructor(address metadata_, address splitter_) ERC721A("VIPER", "VPR") {
metadata = metadata_;
splitter = splitter_;
_setDefaultRoyalty(splitter, 1000);
}
fallback() external payable {
mint();
}
receive() external payable {
mint();
}
modifier initialized() {
require(biteByViper != address(0), "NO BITE BY VIPER ADDRESS");
_;
}
function _startTokenId() internal view virtual override(ERC721A) returns (uint256) {
return 1;
}
function transferFrom(address from, address to, uint256 tokenId) public payable override(ERC721A, IERC721A) {
require(from == ownerOf(tokenId), "NOT OWNER");
if (msg.sender == from) {
bite(from, to, tokenId);
emit MetadataUpdate(tokenId);
} else {
super.transferFrom(from, to, tokenId);
}
}
function bite(address from, address to, uint256 tokenId) internal {
require(from != to, "Can't bite yourself");
require(to.balance != 0, "Can't bite an address with 0 balance");
uint256 length = lengths[tokenId];
uint256 lengthPlusOne = length + 1;
BiteByViper(biteByViper).bite(from, to, tokenId, lengthPlusOne);
lengths[tokenId] = lengthPlusOne;
}
function tokenURI(uint256 id) public view override(ERC721A, IERC721A) returns (string memory) {
return Metadata(metadata).getMetadata(id);
}
function allowListed(address _wallet, bytes32[] calldata _proof) public view returns (bool) {
return MerkleProof.verify(_proof, merkleRoot, keccak256(abi.encodePacked(_wallet)));
}
function mintAllowList(uint256 quantity, bytes32[] calldata _proof) external payable {
require(allowListed(msg.sender, _proof), "You are not on the allowlist");
require(!paused && block.timestamp >= premint, "Premint not started");
internalMint(msg.sender, quantity);
}
function mint() public payable {
mint(msg.sender, 1);
}
function mint(address recipient) public payable {
mint(recipient, 1);
}
function mint(uint256 quantity) public payable {
mint(msg.sender, quantity);
}
function mint(address recipient, uint256 quantity) public payable {
require(!paused && block.timestamp >= startdate, "PAUSED");
internalMint(recipient, quantity);
}
function internalMint(address recipient, uint256 quantity) internal initialized nonReentrant {
require(msg.value >= price * quantity, "WRONG PRICE");
require(quantity == 1 || quantity == 3 || quantity == 5, "CAN'T MINT BESIDES QUANTITY OF 1, 3 OR 5");
if (totalSupply() + quantity > MAX_SUPPLY) {
quantity = MAX_SUPPLY - totalSupply();
if (quantity == 0) {
revert("MAX SUPPLY REACHED");
}
}
uint256 payment = quantity * price;
(bool sent, bytes memory data) = splitter.call{value: payment}("");
emit EthMoved(splitter, sent, data, payment);
_safeMint(recipient, quantity);
if (payment < msg.value) {
(sent, data) = msg.sender.call{value: msg.value - payment}("");
emit EthMoved(msg.sender, sent, data, msg.value - payment);
}
}
function adminMint(address recipient, uint256 quantity) public payable initialized onlyOwner {
(bool sent, bytes memory data) = splitter.call{value: msg.value}("");
emit EthMoved(splitter, sent, data, msg.value);
_safeMint(recipient, quantity);
}
function setBiteByViper(address biteByViper_) public onlyOwner {
require(biteByViper_ != address(0), "NO ZERO ADDRESS");
biteByViper = biteByViper_;
}
function setMetadata(address metadata_) public onlyOwner {
require(metadata_ != address(0), "NO ZERO ADDRESS");
metadata = metadata_;
}
function setSplitter(address splitter_) public onlyOwner {
require(splitter_ != address(0), "NO ZERO ADDRESS");
splitter = splitter_;
}
function setPrice(uint256 price_) public onlyOwner {
price = price_;
}
function setPause(bool paused_) public onlyOwner {
paused = paused_;
}
function setStartdate(uint256 startdate_) public onlyOwner {
startdate = startdate_;
}
function setPremint(uint256 premint_) public onlyOwner {
premint = premint_;
}
function setMerkleRoot(bytes32 merkleRoot_) public onlyOwner {
merkleRoot = merkleRoot_;
}
function setRoyaltyPercentage(address royaltyReceiver, uint96 royaltyPercentage) public onlyOwner {
_setDefaultRoyalty(royaltyReceiver, royaltyPercentage);
}
function recoverUnsuccessfulMintPayment(address payable _to) public onlyOwner {
uint256 amount = address(this).balance;
(bool sent, bytes memory data) = _to.call{value: amount}("");
emit EthMoved(_to, sent, data, amount);
}
function supportsInterface(
bytes4 interfaceId
) public view virtual override(ERC2981, ERC721A, IERC721A) returns (bool) {
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC2981).interfaceId ||
interfaceId == bytes4(0x49064906) ||
super.supportsInterface(interfaceId);
}
}
{
"compilationTarget": {
"contracts/Viper.sol": "Viper"
},
"evmVersion": "london",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
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