Source Code
Overview
ETH Balance
0 ETH
Eth Value
$0.00More Info
Private Name Tags
ContractCreator
TokenTracker
Latest 25 from a total of 83 transactions
| Transaction Hash |
Method
|
Block
|
From
|
|
To
|
||||
|---|---|---|---|---|---|---|---|---|---|
| Mint | 24402953 | 18 days ago | IN | 0 ETH | 0.0000147 | ||||
| Mint | 24402570 | 18 days ago | IN | 0 ETH | 0.00016986 | ||||
| Mint | 24402482 | 18 days ago | IN | 0 ETH | 0.00016309 | ||||
| Mint | 24402334 | 18 days ago | IN | 0 ETH | 0.00015663 | ||||
| Mint | 24402259 | 18 days ago | IN | 0 ETH | 0.00001675 | ||||
| Mint | 24402161 | 18 days ago | IN | 0 ETH | 0.00015901 | ||||
| Mint | 24401701 | 18 days ago | IN | 0 ETH | 0.0001642 | ||||
| Mint | 24400484 | 19 days ago | IN | 0 ETH | 0.00001467 | ||||
| Mint | 24085169 | 63 days ago | IN | 0 ETH | 0.00014543 | ||||
| Mint | 24041063 | 69 days ago | IN | 0 ETH | 0.00015844 | ||||
| Mint | 24027620 | 71 days ago | IN | 0 ETH | 0.00014633 | ||||
| Mint | 24005718 | 74 days ago | IN | 0 ETH | 0.00014575 | ||||
| Set Token Data | 23991368 | 76 days ago | IN | 0 ETH | 0.00003224 | ||||
| Set Token Data | 23991364 | 76 days ago | IN | 0 ETH | 0.00003536 | ||||
| Set Token Data | 23991354 | 76 days ago | IN | 0 ETH | 0.00003303 | ||||
| Set Token Data | 23991336 | 76 days ago | IN | 0 ETH | 0.00004299 | ||||
| Set Token Data | 23991301 | 76 days ago | IN | 0 ETH | 0.00002494 | ||||
| Set Token Data | 23991274 | 76 days ago | IN | 0 ETH | 0.00003285 | ||||
| Set Token Data | 23991269 | 76 days ago | IN | 0 ETH | 0.00004131 | ||||
| Set Token Data | 23991262 | 76 days ago | IN | 0 ETH | 0.00003381 | ||||
| Set Token Data | 23991245 | 76 days ago | IN | 0 ETH | 0.00004157 | ||||
| Set Token Data | 23991235 | 76 days ago | IN | 0 ETH | 0.00003534 | ||||
| Create Chunk | 23991222 | 76 days ago | IN | 0 ETH | 0.00017533 | ||||
| Create Chunk | 23991218 | 76 days ago | IN | 0 ETH | 0.00051912 | ||||
| Create Chunk | 23991203 | 76 days ago | IN | 0 ETH | 0.00051469 |
Latest 25 internal transactions (View All)
Advanced mode:
| Parent Transaction Hash | Method | Block |
From
|
|
To
|
||
|---|---|---|---|---|---|---|---|
| 0x611a713d | 23991222 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23991218 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23991203 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23991197 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x6108d53d | 23991189 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23991185 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23991182 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23991171 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x6105813d | 23991142 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23991138 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23991131 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23991125 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x6109ad3d | 23990989 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23990986 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23990979 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23990964 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23990961 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23990942 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23990938 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x610b513d | 23990923 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23990920 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23990916 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x613e413d | 23990901 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23990894 | 76 days ago | Contract Creation | 0 ETH | |||
| 0x614e213d | 23990888 | 76 days ago | Contract Creation | 0 ETH |
Loading...
Loading
Loading...
Loading
Cross-Chain Transactions
Loading...
Loading
Contract Name:
WolvesAndSheep
Compiler Version
v0.8.30+commit.73712a01
Optimization Enabled:
No with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.30;
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
/// @notice Minimal SSTORE2 implementation for storing arbitrary bytes cheaply on-chain.
/// Stores data in the runtime code of tiny contracts and reads it with EXTCODECOPY.
library SSTORE2 {
error WriteError();
/// @notice Writes `data` to a new contract and returns its address.
/// The contract's *runtime* bytecode will be: 0x00 ++ data.
function write(bytes memory data) internal returns (address pointer) {
// runtime = 0x00 ++ data
bytes memory runtimeCode = abi.encodePacked(hex"00", data);
// init code:
// 0x61 <len> PUSH2 runtime_length
// 0x3d RETURNDATASIZE (0)
// 0x81 DUP2 (len)
// 0x60 0x0a PUSH1 0x0a (offset where runtime starts)
// 0x3d RETURNDATASIZE (0)
// 0x39 CODECOPY (copy runtime to memory[0..len])
// 0xf3 RETURN (return the runtime bytes)
bytes memory creationCode = abi.encodePacked(
hex"61",
uint16(runtimeCode.length),
hex"3d81600a3d39f3",
runtimeCode
);
assembly {
pointer := create(0, add(creationCode, 0x20), mload(creationCode))
}
if (pointer == address(0)) {
revert WriteError();
}
}
/// @notice Reads the data from an SSTORE2 pointer.
/// @param pointer The address of the SSTORE2 data contract.
/// @return data The bytes originally written (without the leading 0x00).
function read(address pointer) internal view returns (bytes memory data) {
uint256 size;
assembly {
size := extcodesize(pointer)
}
// If there's no code at the pointer, return empty bytes.
if (size == 0) {
return bytes("");
}
unchecked {
// Skip the first 0x00 byte in runtime
size -= 1;
}
data = new bytes(size);
assembly {
// Copy from code: start at offset 1, length = size
extcodecopy(pointer, add(data, 0x20), 1, size)
}
}
}
contract WolvesAndSheep is ERC721, Ownable {
using Strings for uint256;
// Custom errors
error TokenAlreadyMinted();
error TokenDataLocked();
error ZeroChunkPointer();
error NonexistentToken();
error AlreadyLocked();
error AlreadyMintedToAddress();
error TokenDataNotSet();
struct TokenData {
string name; // Token name
string description; // Token description
string mediaType; // e.g. "image/png"
string wolfSheepIndex; // Wolf-Sheep Index: string value from -100 to 100
address[] chunks; // SSTORE2 pointers for base64 PNG string segments
bool isLocked; // When true, this token's data cannot be changed
}
mapping(uint256 => TokenData) private _tokenData;
constructor(
string memory name_,
string memory symbol_
) ERC721(name_, symbol_) Ownable(msg.sender) {}
// -------------------------------------------------------------------------
// Minting
// -------------------------------------------------------------------------
/// @notice Public mint function - allows anyone to mint one token to their wallet.
/// @dev Reverts if the caller already owns a token (one per wallet limit).
/// @dev Reverts if the token has already been minted or doesn't have token data set.
/// @param tokenId The specific token ID to mint.
function mint(uint256 tokenId) external {
// Check if caller already owns a token
if (balanceOf(msg.sender) > 0) revert AlreadyMintedToAddress();
// Check if token already minted
if (_ownerOf(tokenId) != address(0)) revert TokenAlreadyMinted();
// Check if token data has been set (at minimum, chunks array must not be empty)
if (_tokenData[tokenId].chunks.length == 0) revert TokenDataNotSet();
_safeMint(msg.sender, tokenId);
}
/// @notice Owner-only mint function.
/// @param to The recipient address.
/// @param tokenId The token ID to mint.
function ownerMint(address to, uint256 tokenId) external onlyOwner {
if (_ownerOf(tokenId) != address(0)) revert TokenAlreadyMinted();
_safeMint(to, tokenId);
}
// -------------------------------------------------------------------------
// SSTORE2 Chunk Creation
// -------------------------------------------------------------------------
/// @notice Creates an SSTORE2 chunk storing `data` and returns its pointer.
/// @dev `data` should be a slice of the base64-encoded PNG string.
function createChunk(string calldata data) external onlyOwner returns (address pointer) {
bytes memory copy = bytes(data); // ASCII bytes of the base64 string
pointer = SSTORE2.write(copy);
}
// -------------------------------------------------------------------------
// Token Data Management
// -------------------------------------------------------------------------
/// @notice Sets or updates token metadata and image chunk pointers.
/// @dev Can only be called by the owner and only if the token is not locked.
function setTokenData(
uint256 tokenId,
string calldata name_,
string calldata description_,
string calldata mediaType_,
string calldata wolfSheepIndex_,
address[] calldata chunkPointers
) external onlyOwner {
TokenData storage td = _tokenData[tokenId];
if (td.isLocked) revert TokenDataLocked();
td.name = name_;
td.description = description_;
td.mediaType = mediaType_;
td.wolfSheepIndex = wolfSheepIndex_;
// Replace the chunks array
delete td.chunks;
uint256 len = chunkPointers.length;
for (uint256 i = 0; i < len; i++) {
if (chunkPointers[i] == address(0)) revert ZeroChunkPointer();
td.chunks.push(chunkPointers[i]);
}
}
/// @notice Locks the token's data, making future updates impossible.
function lockTokenData(uint256 tokenId) external onlyOwner {
if (_ownerOf(tokenId) == address(0)) revert NonexistentToken();
TokenData storage td = _tokenData[tokenId];
if (td.isLocked) revert AlreadyLocked();
td.isLocked = true;
}
/// @notice Returns whether the token's data is locked.
function isTokenDataLocked(uint256 tokenId) external view returns (bool) {
if (_ownerOf(tokenId) == address(0)) revert NonexistentToken();
return _tokenData[tokenId].isLocked;
}
/// @notice Returns the chunk pointers for a token.
function getTokenChunks(uint256 tokenId) external view returns (address[] memory) {
if (_tokenData[tokenId].chunks.length == 0) revert TokenDataNotSet();
return _tokenData[tokenId].chunks;
}
/// @notice Returns brief info about a token (without chunks).
function getTokenInfo(uint256 tokenId)
external
view
returns (
string memory name_,
string memory description_,
string memory mediaType_,
string memory wolfSheepIndex_,
bool isLocked_
)
{
TokenData storage td = _tokenData[tokenId];
return (td.name, td.description, td.mediaType, td.wolfSheepIndex, td.isLocked);
}
// -------------------------------------------------------------------------
// tokenURI
// -------------------------------------------------------------------------
/// @inheritdoc ERC721
function tokenURI(uint256 tokenId) public view override returns (string memory) {
if (_ownerOf(tokenId) == address(0)) revert NonexistentToken();
TokenData storage td = _tokenData[tokenId];
// Name: fall back to "Token #id" if not set.
string memory name_ = bytes(td.name).length > 0
? td.name
: string(abi.encodePacked("Token #", tokenId.toString()));
// Description: can be empty.
string memory description_ = td.description;
// Media type: default to image/png if not set.
string memory mediaType_ = bytes(td.mediaType).length > 0
? td.mediaType
: "image/png";
// Read and concatenate all base64 chunks.
string memory base64Image = _readAllChunks(td.chunks);
// Build the image data URI.
string memory imageDataUri = string(
abi.encodePacked(
"data:",
mediaType_,
";base64,",
base64Image
)
);
// Build JSON. We escape name/description to avoid breaking JSON.
bytes memory jsonBytes = abi.encodePacked(
'{"name":"',
_escapeJson(name_),
'","description":"',
_escapeJson(description_),
'","image":"',
imageDataUri,
'","attributes":[{"trait_type":"Wolf-Sheep Index","value":"',
_escapeJson(td.wolfSheepIndex),
'"}]}'
);
return string(
abi.encodePacked(
"data:application/json;utf8,",
jsonBytes
)
);
}
// -------------------------------------------------------------------------
// Internal helpers
// -------------------------------------------------------------------------
/// @dev Reads and concatenates all SSTORE2 chunks into a single string.
/// Uses extcodesize/extcodecopy directly to avoid per-byte copying in Solidity.
function _readAllChunks(address[] storage chunks) internal view returns (string memory) {
uint256 len = chunks.length;
if (len == 0) {
return "";
}
uint256 totalLen = 0;
// First pass: compute total length (sum of (extcodesize - 1) for each chunk)
for (uint256 i = 0; i < len; i++) {
address pointer = chunks[i];
uint256 size;
assembly {
size := extcodesize(pointer)
}
if (size > 1) {
unchecked {
totalLen += (size - 1);
}
}
}
if (totalLen == 0) {
return "";
}
bytes memory merged = new bytes(totalLen);
// Second pass: copy each chunk's runtime code (minus the leading 0x00) into merged
uint256 offset = 0;
for (uint256 i = 0; i < len; i++) {
address pointer = chunks[i];
uint256 size;
assembly {
size := extcodesize(pointer)
}
if (size <= 1) {
continue;
}
uint256 dataLen;
unchecked {
dataLen = size - 1;
}
assembly {
// dest = merged.data + offset
let dest := add(add(merged, 0x20), offset)
// copy from code: start at offset 1 (skip 0x00), length = dataLen
extcodecopy(pointer, dest, 1, dataLen)
}
offset += dataLen;
}
return string(merged);
}
/// @dev Simple JSON string escaper for name/description fields.
/// Escapes backslash, double-quote, and control characters \n, \r, \t.
function _escapeJson(string memory value) internal pure returns (string memory) {
bytes memory src = bytes(value);
uint256 len = src.length;
// Worst-case every character is escaped with a leading backslash.
bytes memory out = new bytes(len * 2);
uint256 outLen = 0;
for (uint256 i = 0; i < len; i++) {
bytes1 c = src[i];
if (c == bytes1(uint8(92)) /* '\' */ || c == bytes1(uint8(34)) /* '"' */) {
out[outLen++] = bytes1(uint8(92)); // '\'
out[outLen++] = c;
} else if (c == bytes1(uint8(10))) {
// '\n' -> "\\n"
out[outLen++] = bytes1(uint8(92));
out[outLen++] = bytes1("n");
} else if (c == bytes1(uint8(13))) {
// '\r' -> "\\r"
out[outLen++] = bytes1(uint8(92));
out[outLen++] = bytes1("r");
} else if (c == bytes1(uint8(9))) {
// '\t' -> "\\t"
out[outLen++] = bytes1(uint8(92));
out[outLen++] = bytes1("t");
} else {
out[outLen++] = c;
}
}
// Copy into a tightly-packed bytes array.
bytes memory result = new bytes(outLen);
for (uint256 j = 0; j < outLen; j++) {
result[j] = out[j];
}
return string(result);
}
// -------------------------------------------------------------------------
// Debug helpers (optional, remove for production)
// -------------------------------------------------------------------------
function debugReadChunk(address pointer) external view returns (string memory) {
bytes memory data = SSTORE2.read(pointer);
return string(data);
}
/// @notice Debug function to read all chunks for a token, regardless of mint status.
/// @dev This allows testing images before tokens are minted.
/// @param tokenId The token ID to read chunks for.
/// @return The full concatenated base64 string from all chunks.
function debugReadAllChunks(uint256 tokenId) external view returns (string memory) {
TokenData storage td = _tokenData[tokenId];
if (td.chunks.length == 0) revert TokenDataNotSet();
return _readAllChunks(td.chunks);
}
/// @notice Debug function to build a complete data URI for testing, without requiring mint.
/// @dev Returns the full image data URI that would be used in tokenURI.
/// @param tokenId The token ID to build the data URI for.
/// @return The complete data URI (e.g., "data:image/png;base64,...")
function debugBuildDataUri(uint256 tokenId) external view returns (string memory) {
TokenData storage td = _tokenData[tokenId];
if (td.chunks.length == 0) revert TokenDataNotSet();
// Media type: default to image/png if not set.
string memory mediaType_ = bytes(td.mediaType).length > 0
? td.mediaType
: "image/png";
// Read and concatenate all base64 chunks.
string memory base64Image = _readAllChunks(td.chunks);
// Build the image data URI.
return string(
abi.encodePacked(
"data:",
mediaType_,
";base64,",
base64Image
)
);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (utils/Strings.sol)
pragma solidity ^0.8.20;
import {Math} from "./math/Math.sol";
import {SafeCast} from "./math/SafeCast.sol";
import {SignedMath} from "./math/SignedMath.sol";
/**
* @dev String operations.
*/
library Strings {
using SafeCast for *;
bytes16 private constant HEX_DIGITS = "0123456789abcdef";
uint8 private constant ADDRESS_LENGTH = 20;
uint256 private constant SPECIAL_CHARS_LOOKUP =
(1 << 0x08) | // backspace
(1 << 0x09) | // tab
(1 << 0x0a) | // newline
(1 << 0x0c) | // form feed
(1 << 0x0d) | // carriage return
(1 << 0x22) | // double quote
(1 << 0x5c); // backslash
/**
* @dev The `value` string doesn't fit in the specified `length`.
*/
error StringsInsufficientHexLength(uint256 value, uint256 length);
/**
* @dev The string being parsed contains characters that are not in scope of the given base.
*/
error StringsInvalidChar();
/**
* @dev The string being parsed is not a properly formatted address.
*/
error StringsInvalidAddressFormat();
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
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 ("memory-safe") {
ptr := add(add(buffer, 0x20), length)
}
while (true) {
ptr--;
assembly ("memory-safe") {
mstore8(ptr, byte(mod(value, 10), HEX_DIGITS))
}
value /= 10;
if (value == 0) break;
}
return buffer;
}
}
/**
* @dev Converts a `int256` to its ASCII `string` decimal representation.
*/
function toStringSigned(int256 value) internal pure returns (string memory) {
return string.concat(value < 0 ? "-" : "", toString(SignedMath.abs(value)));
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
unchecked {
return toHexString(value, Math.log256(value) + 1);
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
uint256 localValue = value;
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] = HEX_DIGITS[localValue & 0xf];
localValue >>= 4;
}
if (localValue != 0) {
revert StringsInsufficientHexLength(value, length);
}
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal
* representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its checksummed ASCII `string` hexadecimal
* representation, according to EIP-55.
*/
function toChecksumHexString(address addr) internal pure returns (string memory) {
bytes memory buffer = bytes(toHexString(addr));
// hash the hex part of buffer (skip length + 2 bytes, length 40)
uint256 hashValue;
assembly ("memory-safe") {
hashValue := shr(96, keccak256(add(buffer, 0x22), 40))
}
for (uint256 i = 41; i > 1; --i) {
// possible values for buffer[i] are 48 (0) to 57 (9) and 97 (a) to 102 (f)
if (hashValue & 0xf > 7 && uint8(buffer[i]) > 96) {
// case shift by xoring with 0x20
buffer[i] ^= 0x20;
}
hashValue >>= 4;
}
return string(buffer);
}
/**
* @dev Returns true if the two strings are equal.
*/
function equal(string memory a, string memory b) internal pure returns (bool) {
return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b));
}
/**
* @dev Parse a decimal string and returns the value as a `uint256`.
*
* Requirements:
* - The string must be formatted as `[0-9]*`
* - The result must fit into an `uint256` type
*/
function parseUint(string memory input) internal pure returns (uint256) {
return parseUint(input, 0, bytes(input).length);
}
/**
* @dev Variant of {parseUint-string} that parses a substring of `input` located between position `begin` (included) and
* `end` (excluded).
*
* Requirements:
* - The substring must be formatted as `[0-9]*`
* - The result must fit into an `uint256` type
*/
function parseUint(string memory input, uint256 begin, uint256 end) internal pure returns (uint256) {
(bool success, uint256 value) = tryParseUint(input, begin, end);
if (!success) revert StringsInvalidChar();
return value;
}
/**
* @dev Variant of {parseUint-string} that returns false if the parsing fails because of an invalid character.
*
* NOTE: This function will revert if the result does not fit in a `uint256`.
*/
function tryParseUint(string memory input) internal pure returns (bool success, uint256 value) {
return _tryParseUintUncheckedBounds(input, 0, bytes(input).length);
}
/**
* @dev Variant of {parseUint-string-uint256-uint256} that returns false if the parsing fails because of an invalid
* character.
*
* NOTE: This function will revert if the result does not fit in a `uint256`.
*/
function tryParseUint(
string memory input,
uint256 begin,
uint256 end
) internal pure returns (bool success, uint256 value) {
if (end > bytes(input).length || begin > end) return (false, 0);
return _tryParseUintUncheckedBounds(input, begin, end);
}
/**
* @dev Implementation of {tryParseUint-string-uint256-uint256} that does not check bounds. Caller should make sure that
* `begin <= end <= input.length`. Other inputs would result in undefined behavior.
*/
function _tryParseUintUncheckedBounds(
string memory input,
uint256 begin,
uint256 end
) private pure returns (bool success, uint256 value) {
bytes memory buffer = bytes(input);
uint256 result = 0;
for (uint256 i = begin; i < end; ++i) {
uint8 chr = _tryParseChr(bytes1(_unsafeReadBytesOffset(buffer, i)));
if (chr > 9) return (false, 0);
result *= 10;
result += chr;
}
return (true, result);
}
/**
* @dev Parse a decimal string and returns the value as a `int256`.
*
* Requirements:
* - The string must be formatted as `[-+]?[0-9]*`
* - The result must fit in an `int256` type.
*/
function parseInt(string memory input) internal pure returns (int256) {
return parseInt(input, 0, bytes(input).length);
}
/**
* @dev Variant of {parseInt-string} that parses a substring of `input` located between position `begin` (included) and
* `end` (excluded).
*
* Requirements:
* - The substring must be formatted as `[-+]?[0-9]*`
* - The result must fit in an `int256` type.
*/
function parseInt(string memory input, uint256 begin, uint256 end) internal pure returns (int256) {
(bool success, int256 value) = tryParseInt(input, begin, end);
if (!success) revert StringsInvalidChar();
return value;
}
/**
* @dev Variant of {parseInt-string} that returns false if the parsing fails because of an invalid character or if
* the result does not fit in a `int256`.
*
* NOTE: This function will revert if the absolute value of the result does not fit in a `uint256`.
*/
function tryParseInt(string memory input) internal pure returns (bool success, int256 value) {
return _tryParseIntUncheckedBounds(input, 0, bytes(input).length);
}
uint256 private constant ABS_MIN_INT256 = 2 ** 255;
/**
* @dev Variant of {parseInt-string-uint256-uint256} that returns false if the parsing fails because of an invalid
* character or if the result does not fit in a `int256`.
*
* NOTE: This function will revert if the absolute value of the result does not fit in a `uint256`.
*/
function tryParseInt(
string memory input,
uint256 begin,
uint256 end
) internal pure returns (bool success, int256 value) {
if (end > bytes(input).length || begin > end) return (false, 0);
return _tryParseIntUncheckedBounds(input, begin, end);
}
/**
* @dev Implementation of {tryParseInt-string-uint256-uint256} that does not check bounds. Caller should make sure that
* `begin <= end <= input.length`. Other inputs would result in undefined behavior.
*/
function _tryParseIntUncheckedBounds(
string memory input,
uint256 begin,
uint256 end
) private pure returns (bool success, int256 value) {
bytes memory buffer = bytes(input);
// Check presence of a negative sign.
bytes1 sign = begin == end ? bytes1(0) : bytes1(_unsafeReadBytesOffset(buffer, begin)); // don't do out-of-bound (possibly unsafe) read if sub-string is empty
bool positiveSign = sign == bytes1("+");
bool negativeSign = sign == bytes1("-");
uint256 offset = (positiveSign || negativeSign).toUint();
(bool absSuccess, uint256 absValue) = tryParseUint(input, begin + offset, end);
if (absSuccess && absValue < ABS_MIN_INT256) {
return (true, negativeSign ? -int256(absValue) : int256(absValue));
} else if (absSuccess && negativeSign && absValue == ABS_MIN_INT256) {
return (true, type(int256).min);
} else return (false, 0);
}
/**
* @dev Parse a hexadecimal string (with or without "0x" prefix), and returns the value as a `uint256`.
*
* Requirements:
* - The string must be formatted as `(0x)?[0-9a-fA-F]*`
* - The result must fit in an `uint256` type.
*/
function parseHexUint(string memory input) internal pure returns (uint256) {
return parseHexUint(input, 0, bytes(input).length);
}
/**
* @dev Variant of {parseHexUint-string} that parses a substring of `input` located between position `begin` (included) and
* `end` (excluded).
*
* Requirements:
* - The substring must be formatted as `(0x)?[0-9a-fA-F]*`
* - The result must fit in an `uint256` type.
*/
function parseHexUint(string memory input, uint256 begin, uint256 end) internal pure returns (uint256) {
(bool success, uint256 value) = tryParseHexUint(input, begin, end);
if (!success) revert StringsInvalidChar();
return value;
}
/**
* @dev Variant of {parseHexUint-string} that returns false if the parsing fails because of an invalid character.
*
* NOTE: This function will revert if the result does not fit in a `uint256`.
*/
function tryParseHexUint(string memory input) internal pure returns (bool success, uint256 value) {
return _tryParseHexUintUncheckedBounds(input, 0, bytes(input).length);
}
/**
* @dev Variant of {parseHexUint-string-uint256-uint256} that returns false if the parsing fails because of an
* invalid character.
*
* NOTE: This function will revert if the result does not fit in a `uint256`.
*/
function tryParseHexUint(
string memory input,
uint256 begin,
uint256 end
) internal pure returns (bool success, uint256 value) {
if (end > bytes(input).length || begin > end) return (false, 0);
return _tryParseHexUintUncheckedBounds(input, begin, end);
}
/**
* @dev Implementation of {tryParseHexUint-string-uint256-uint256} that does not check bounds. Caller should make sure that
* `begin <= end <= input.length`. Other inputs would result in undefined behavior.
*/
function _tryParseHexUintUncheckedBounds(
string memory input,
uint256 begin,
uint256 end
) private pure returns (bool success, uint256 value) {
bytes memory buffer = bytes(input);
// skip 0x prefix if present
bool hasPrefix = (end > begin + 1) && bytes2(_unsafeReadBytesOffset(buffer, begin)) == bytes2("0x"); // don't do out-of-bound (possibly unsafe) read if sub-string is empty
uint256 offset = hasPrefix.toUint() * 2;
uint256 result = 0;
for (uint256 i = begin + offset; i < end; ++i) {
uint8 chr = _tryParseChr(bytes1(_unsafeReadBytesOffset(buffer, i)));
if (chr > 15) return (false, 0);
result *= 16;
unchecked {
// Multiplying by 16 is equivalent to a shift of 4 bits (with additional overflow check).
// This guarantees that adding a value < 16 will not cause an overflow, hence the unchecked.
result += chr;
}
}
return (true, result);
}
/**
* @dev Parse a hexadecimal string (with or without "0x" prefix), and returns the value as an `address`.
*
* Requirements:
* - The string must be formatted as `(0x)?[0-9a-fA-F]{40}`
*/
function parseAddress(string memory input) internal pure returns (address) {
return parseAddress(input, 0, bytes(input).length);
}
/**
* @dev Variant of {parseAddress-string} that parses a substring of `input` located between position `begin` (included) and
* `end` (excluded).
*
* Requirements:
* - The substring must be formatted as `(0x)?[0-9a-fA-F]{40}`
*/
function parseAddress(string memory input, uint256 begin, uint256 end) internal pure returns (address) {
(bool success, address value) = tryParseAddress(input, begin, end);
if (!success) revert StringsInvalidAddressFormat();
return value;
}
/**
* @dev Variant of {parseAddress-string} that returns false if the parsing fails because the input is not a properly
* formatted address. See {parseAddress-string} requirements.
*/
function tryParseAddress(string memory input) internal pure returns (bool success, address value) {
return tryParseAddress(input, 0, bytes(input).length);
}
/**
* @dev Variant of {parseAddress-string-uint256-uint256} that returns false if the parsing fails because input is not a properly
* formatted address. See {parseAddress-string-uint256-uint256} requirements.
*/
function tryParseAddress(
string memory input,
uint256 begin,
uint256 end
) internal pure returns (bool success, address value) {
if (end > bytes(input).length || begin > end) return (false, address(0));
bool hasPrefix = (end > begin + 1) && bytes2(_unsafeReadBytesOffset(bytes(input), begin)) == bytes2("0x"); // don't do out-of-bound (possibly unsafe) read if sub-string is empty
uint256 expectedLength = 40 + hasPrefix.toUint() * 2;
// check that input is the correct length
if (end - begin == expectedLength) {
// length guarantees that this does not overflow, and value is at most type(uint160).max
(bool s, uint256 v) = _tryParseHexUintUncheckedBounds(input, begin, end);
return (s, address(uint160(v)));
} else {
return (false, address(0));
}
}
function _tryParseChr(bytes1 chr) private pure returns (uint8) {
uint8 value = uint8(chr);
// Try to parse `chr`:
// - Case 1: [0-9]
// - Case 2: [a-f]
// - Case 3: [A-F]
// - otherwise not supported
unchecked {
if (value > 47 && value < 58) value -= 48;
else if (value > 96 && value < 103) value -= 87;
else if (value > 64 && value < 71) value -= 55;
else return type(uint8).max;
}
return value;
}
/**
* @dev Escape special characters in JSON strings. This can be useful to prevent JSON injection in NFT metadata.
*
* WARNING: This function should only be used in double quoted JSON strings. Single quotes are not escaped.
*
* NOTE: This function escapes all unicode characters, and not just the ones in ranges defined in section 2.5 of
* RFC-4627 (U+0000 to U+001F, U+0022 and U+005C). ECMAScript's `JSON.parse` does recover escaped unicode
* characters that are not in this range, but other tooling may provide different results.
*/
function escapeJSON(string memory input) internal pure returns (string memory) {
bytes memory buffer = bytes(input);
bytes memory output = new bytes(2 * buffer.length); // worst case scenario
uint256 outputLength = 0;
for (uint256 i; i < buffer.length; ++i) {
bytes1 char = bytes1(_unsafeReadBytesOffset(buffer, i));
if (((SPECIAL_CHARS_LOOKUP & (1 << uint8(char))) != 0)) {
output[outputLength++] = "\\";
if (char == 0x08) output[outputLength++] = "b";
else if (char == 0x09) output[outputLength++] = "t";
else if (char == 0x0a) output[outputLength++] = "n";
else if (char == 0x0c) output[outputLength++] = "f";
else if (char == 0x0d) output[outputLength++] = "r";
else if (char == 0x5c) output[outputLength++] = "\\";
else if (char == 0x22) {
// solhint-disable-next-line quotes
output[outputLength++] = '"';
}
} else {
output[outputLength++] = char;
}
}
// write the actual length and deallocate unused memory
assembly ("memory-safe") {
mstore(output, outputLength)
mstore(0x40, add(output, shl(5, shr(5, add(outputLength, 63)))))
}
return string(output);
}
/**
* @dev Reads a bytes32 from a bytes array without bounds checking.
*
* NOTE: making this function internal would mean it could be used with memory unsafe offset, and marking the
* assembly block as such would prevent some optimizations.
*/
function _unsafeReadBytesOffset(bytes memory buffer, uint256 offset) private pure returns (bytes32 value) {
// This is not memory safe in the general case, but all calls to this private function are within bounds.
assembly ("memory-safe") {
value := mload(add(add(buffer, 0x20), offset))
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
pragma solidity ^0.8.20;
import {Context} from "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* The initial owner is set to the address provided by the deployer. This can
* later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
/**
* @dev The caller account is not authorized to perform an operation.
*/
error OwnableUnauthorizedAccount(address account);
/**
* @dev The owner is not a valid owner account. (eg. `address(0)`)
*/
error OwnableInvalidOwner(address owner);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the address provided by the deployer as the initial owner.
*/
constructor(address initialOwner) {
if (initialOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(initialOwner);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
if (owner() != _msgSender()) {
revert OwnableUnauthorizedAccount(_msgSender());
}
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
if (newOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC721/ERC721.sol)
pragma solidity ^0.8.20;
import {IERC721} from "./IERC721.sol";
import {IERC721Metadata} from "./extensions/IERC721Metadata.sol";
import {ERC721Utils} from "./utils/ERC721Utils.sol";
import {Context} from "../../utils/Context.sol";
import {Strings} from "../../utils/Strings.sol";
import {IERC165, ERC165} from "../../utils/introspection/ERC165.sol";
import {IERC721Errors} from "../../interfaces/draft-IERC6093.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC-721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
abstract contract ERC721 is Context, ERC165, IERC721, IERC721Metadata, IERC721Errors {
using Strings for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
mapping(uint256 tokenId => address) private _owners;
mapping(address owner => uint256) private _balances;
mapping(uint256 tokenId => address) private _tokenApprovals;
mapping(address owner => mapping(address operator => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/// @inheritdoc IERC165
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
super.supportsInterface(interfaceId);
}
/// @inheritdoc IERC721
function balanceOf(address owner) public view virtual returns (uint256) {
if (owner == address(0)) {
revert ERC721InvalidOwner(address(0));
}
return _balances[owner];
}
/// @inheritdoc IERC721
function ownerOf(uint256 tokenId) public view virtual returns (address) {
return _requireOwned(tokenId);
}
/// @inheritdoc IERC721Metadata
function name() public view virtual returns (string memory) {
return _name;
}
/// @inheritdoc IERC721Metadata
function symbol() public view virtual returns (string memory) {
return _symbol;
}
/// @inheritdoc IERC721Metadata
function tokenURI(uint256 tokenId) public view virtual returns (string memory) {
_requireOwned(tokenId);
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string.concat(baseURI, tokenId.toString()) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overridden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/// @inheritdoc IERC721
function approve(address to, uint256 tokenId) public virtual {
_approve(to, tokenId, _msgSender());
}
/// @inheritdoc IERC721
function getApproved(uint256 tokenId) public view virtual returns (address) {
_requireOwned(tokenId);
return _getApproved(tokenId);
}
/// @inheritdoc IERC721
function setApprovalForAll(address operator, bool approved) public virtual {
_setApprovalForAll(_msgSender(), operator, approved);
}
/// @inheritdoc IERC721
function isApprovedForAll(address owner, address operator) public view virtual returns (bool) {
return _operatorApprovals[owner][operator];
}
/// @inheritdoc IERC721
function transferFrom(address from, address to, uint256 tokenId) public virtual {
if (to == address(0)) {
revert ERC721InvalidReceiver(address(0));
}
// Setting an "auth" arguments enables the `_isAuthorized` check which verifies that the token exists
// (from != 0). Therefore, it is not needed to verify that the return value is not 0 here.
address previousOwner = _update(to, tokenId, _msgSender());
if (previousOwner != from) {
revert ERC721IncorrectOwner(from, tokenId, previousOwner);
}
}
/// @inheritdoc IERC721
function safeTransferFrom(address from, address to, uint256 tokenId) public {
safeTransferFrom(from, to, tokenId, "");
}
/// @inheritdoc IERC721
function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual {
transferFrom(from, to, tokenId);
ERC721Utils.checkOnERC721Received(_msgSender(), from, to, tokenId, data);
}
/**
* @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist
*
* IMPORTANT: Any overrides to this function that add ownership of tokens not tracked by the
* core ERC-721 logic MUST be matched with the use of {_increaseBalance} to keep balances
* consistent with ownership. The invariant to preserve is that for any address `a` the value returned by
* `balanceOf(a)` must be equal to the number of tokens such that `_ownerOf(tokenId)` is `a`.
*/
function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
return _owners[tokenId];
}
/**
* @dev Returns the approved address for `tokenId`. Returns 0 if `tokenId` is not minted.
*/
function _getApproved(uint256 tokenId) internal view virtual returns (address) {
return _tokenApprovals[tokenId];
}
/**
* @dev Returns whether `spender` is allowed to manage `owner`'s tokens, or `tokenId` in
* particular (ignoring whether it is owned by `owner`).
*
* WARNING: This function assumes that `owner` is the actual owner of `tokenId` and does not verify this
* assumption.
*/
function _isAuthorized(address owner, address spender, uint256 tokenId) internal view virtual returns (bool) {
return
spender != address(0) &&
(owner == spender || isApprovedForAll(owner, spender) || _getApproved(tokenId) == spender);
}
/**
* @dev Checks if `spender` can operate on `tokenId`, assuming the provided `owner` is the actual owner.
* Reverts if:
* - `spender` does not have approval from `owner` for `tokenId`.
* - `spender` does not have approval to manage all of `owner`'s assets.
*
* WARNING: This function assumes that `owner` is the actual owner of `tokenId` and does not verify this
* assumption.
*/
function _checkAuthorized(address owner, address spender, uint256 tokenId) internal view virtual {
if (!_isAuthorized(owner, spender, tokenId)) {
if (owner == address(0)) {
revert ERC721NonexistentToken(tokenId);
} else {
revert ERC721InsufficientApproval(spender, tokenId);
}
}
}
/**
* @dev Unsafe write access to the balances, used by extensions that "mint" tokens using an {ownerOf} override.
*
* NOTE: the value is limited to type(uint128).max. This protect against _balance overflow. It is unrealistic that
* a uint256 would ever overflow from increments when these increments are bounded to uint128 values.
*
* WARNING: Increasing an account's balance using this function tends to be paired with an override of the
* {_ownerOf} function to resolve the ownership of the corresponding tokens so that balances and ownership
* remain consistent with one another.
*/
function _increaseBalance(address account, uint128 value) internal virtual {
unchecked {
_balances[account] += value;
}
}
/**
* @dev Transfers `tokenId` from its current owner to `to`, or alternatively mints (or burns) if the current owner
* (or `to`) is the zero address. Returns the owner of the `tokenId` before the update.
*
* The `auth` argument is optional. If the value passed is non 0, then this function will check that
* `auth` is either the owner of the token, or approved to operate on the token (by the owner).
*
* Emits a {Transfer} event.
*
* NOTE: If overriding this function in a way that tracks balances, see also {_increaseBalance}.
*/
function _update(address to, uint256 tokenId, address auth) internal virtual returns (address) {
address from = _ownerOf(tokenId);
// Perform (optional) operator check
if (auth != address(0)) {
_checkAuthorized(from, auth, tokenId);
}
// Execute the update
if (from != address(0)) {
// Clear approval. No need to re-authorize or emit the Approval event
_approve(address(0), tokenId, address(0), false);
unchecked {
_balances[from] -= 1;
}
}
if (to != address(0)) {
unchecked {
_balances[to] += 1;
}
}
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
return from;
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal {
if (to == address(0)) {
revert ERC721InvalidReceiver(address(0));
}
address previousOwner = _update(to, tokenId, address(0));
if (previousOwner != address(0)) {
revert ERC721InvalidSender(address(0));
}
}
/**
* @dev Mints `tokenId`, transfers it to `to` and checks for `to` acceptance.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(address to, uint256 tokenId, bytes memory data) internal virtual {
_mint(to, tokenId);
ERC721Utils.checkOnERC721Received(_msgSender(), address(0), to, tokenId, data);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
* This is an internal function that does not check if the sender is authorized to operate on the token.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal {
address previousOwner = _update(address(0), tokenId, address(0));
if (previousOwner == address(0)) {
revert ERC721NonexistentToken(tokenId);
}
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(address from, address to, uint256 tokenId) internal {
if (to == address(0)) {
revert ERC721InvalidReceiver(address(0));
}
address previousOwner = _update(to, tokenId, address(0));
if (previousOwner == address(0)) {
revert ERC721NonexistentToken(tokenId);
} else if (previousOwner != from) {
revert ERC721IncorrectOwner(from, tokenId, previousOwner);
}
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking that contract recipients
* are aware of the ERC-721 standard to prevent tokens from being forever locked.
*
* `data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is like {safeTransferFrom} in the sense that it invokes
* {IERC721Receiver-onERC721Received} on the receiver, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `tokenId` token must exist and be owned by `from`.
* - `to` cannot be the zero address.
* - `from` cannot be the zero address.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(address from, address to, uint256 tokenId) internal {
_safeTransfer(from, to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeTransfer-address-address-uint256-}[`_safeTransfer`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeTransfer(address from, address to, uint256 tokenId, bytes memory data) internal virtual {
_transfer(from, to, tokenId);
ERC721Utils.checkOnERC721Received(_msgSender(), from, to, tokenId, data);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* The `auth` argument is optional. If the value passed is non 0, then this function will check that `auth` is
* either the owner of the token, or approved to operate on all tokens held by this owner.
*
* Emits an {Approval} event.
*
* Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
*/
function _approve(address to, uint256 tokenId, address auth) internal {
_approve(to, tokenId, auth, true);
}
/**
* @dev Variant of `_approve` with an optional flag to enable or disable the {Approval} event. The event is not
* emitted in the context of transfers.
*/
function _approve(address to, uint256 tokenId, address auth, bool emitEvent) internal virtual {
// Avoid reading the owner unless necessary
if (emitEvent || auth != address(0)) {
address owner = _requireOwned(tokenId);
// We do not use _isAuthorized because single-token approvals should not be able to call approve
if (auth != address(0) && owner != auth && !isApprovedForAll(owner, auth)) {
revert ERC721InvalidApprover(auth);
}
if (emitEvent) {
emit Approval(owner, to, tokenId);
}
}
_tokenApprovals[tokenId] = to;
}
/**
* @dev Approve `operator` to operate on all of `owner` tokens
*
* Requirements:
* - operator can't be the address zero.
*
* Emits an {ApprovalForAll} event.
*/
function _setApprovalForAll(address owner, address operator, bool approved) internal virtual {
if (operator == address(0)) {
revert ERC721InvalidOperator(operator);
}
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
/**
* @dev Reverts if the `tokenId` doesn't have a current owner (it hasn't been minted, or it has been burned).
* Returns the owner.
*
* Overrides to ownership logic should be done to {_ownerOf}.
*/
function _requireOwned(uint256 tokenId) internal view returns (address) {
address owner = _ownerOf(tokenId);
if (owner == address(0)) {
revert ERC721NonexistentToken(tokenId);
}
return owner;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/math/SignedMath.sol)
pragma solidity ^0.8.20;
import {SafeCast} from "./SafeCast.sol";
/**
* @dev Standard signed math utilities missing in the Solidity language.
*/
library SignedMath {
/**
* @dev Branchless ternary evaluation for `a ? b : c`. Gas costs are constant.
*
* IMPORTANT: This function may reduce bytecode size and consume less gas when used standalone.
* However, the compiler may optimize Solidity ternary operations (i.e. `a ? b : c`) to only compute
* one branch when needed, making this function more expensive.
*/
function ternary(bool condition, int256 a, int256 b) internal pure returns (int256) {
unchecked {
// branchless ternary works because:
// b ^ (a ^ b) == a
// b ^ 0 == b
return b ^ ((a ^ b) * int256(SafeCast.toUint(condition)));
}
}
/**
* @dev Returns the largest of two signed numbers.
*/
function max(int256 a, int256 b) internal pure returns (int256) {
return ternary(a > b, a, b);
}
/**
* @dev Returns the smallest of two signed numbers.
*/
function min(int256 a, int256 b) internal pure returns (int256) {
return ternary(a < b, a, b);
}
/**
* @dev Returns the average of two signed numbers without overflow.
* The result is rounded towards zero.
*/
function average(int256 a, int256 b) internal pure returns (int256) {
// Formula from the book "Hacker's Delight"
int256 x = (a & b) + ((a ^ b) >> 1);
return x + (int256(uint256(x) >> 255) & (a ^ b));
}
/**
* @dev Returns the absolute unsigned value of a signed value.
*/
function abs(int256 n) internal pure returns (uint256) {
unchecked {
// Formula from the "Bit Twiddling Hacks" by Sean Eron Anderson.
// Since `n` is a signed integer, the generated bytecode will use the SAR opcode to perform the right shift,
// taking advantage of the most significant (or "sign" bit) in two's complement representation.
// This opcode adds new most significant bits set to the value of the previous most significant bit. As a result,
// the mask will either be `bytes32(0)` (if n is positive) or `~bytes32(0)` (if n is negative).
int256 mask = n >> 255;
// A `bytes32(0)` mask leaves the input unchanged, while a `~bytes32(0)` mask complements it.
return uint256((n + mask) ^ mask);
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/math/SafeCast.sol)
// This file was procedurally generated from scripts/generate/templates/SafeCast.js.
pragma solidity ^0.8.20;
/**
* @dev Wrappers over Solidity's uintXX/intXX/bool casting operators with added overflow
* checks.
*
* Downcasting from uint256/int256 in Solidity does not revert on overflow. This can
* easily result in undesired exploitation or bugs, since developers usually
* assume that overflows raise errors. `SafeCast` restores this intuition by
* reverting the transaction when such an operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
library SafeCast {
/**
* @dev Value doesn't fit in an uint of `bits` size.
*/
error SafeCastOverflowedUintDowncast(uint8 bits, uint256 value);
/**
* @dev An int value doesn't fit in an uint of `bits` size.
*/
error SafeCastOverflowedIntToUint(int256 value);
/**
* @dev Value doesn't fit in an int of `bits` size.
*/
error SafeCastOverflowedIntDowncast(uint8 bits, int256 value);
/**
* @dev An uint value doesn't fit in an int of `bits` size.
*/
error SafeCastOverflowedUintToInt(uint256 value);
/**
* @dev Returns the downcasted uint248 from uint256, reverting on
* overflow (when the input is greater than largest uint248).
*
* Counterpart to Solidity's `uint248` operator.
*
* Requirements:
*
* - input must fit into 248 bits
*/
function toUint248(uint256 value) internal pure returns (uint248) {
if (value > type(uint248).max) {
revert SafeCastOverflowedUintDowncast(248, value);
}
return uint248(value);
}
/**
* @dev Returns the downcasted uint240 from uint256, reverting on
* overflow (when the input is greater than largest uint240).
*
* Counterpart to Solidity's `uint240` operator.
*
* Requirements:
*
* - input must fit into 240 bits
*/
function toUint240(uint256 value) internal pure returns (uint240) {
if (value > type(uint240).max) {
revert SafeCastOverflowedUintDowncast(240, value);
}
return uint240(value);
}
/**
* @dev Returns the downcasted uint232 from uint256, reverting on
* overflow (when the input is greater than largest uint232).
*
* Counterpart to Solidity's `uint232` operator.
*
* Requirements:
*
* - input must fit into 232 bits
*/
function toUint232(uint256 value) internal pure returns (uint232) {
if (value > type(uint232).max) {
revert SafeCastOverflowedUintDowncast(232, value);
}
return uint232(value);
}
/**
* @dev Returns the downcasted uint224 from uint256, reverting on
* overflow (when the input is greater than largest uint224).
*
* Counterpart to Solidity's `uint224` operator.
*
* Requirements:
*
* - input must fit into 224 bits
*/
function toUint224(uint256 value) internal pure returns (uint224) {
if (value > type(uint224).max) {
revert SafeCastOverflowedUintDowncast(224, value);
}
return uint224(value);
}
/**
* @dev Returns the downcasted uint216 from uint256, reverting on
* overflow (when the input is greater than largest uint216).
*
* Counterpart to Solidity's `uint216` operator.
*
* Requirements:
*
* - input must fit into 216 bits
*/
function toUint216(uint256 value) internal pure returns (uint216) {
if (value > type(uint216).max) {
revert SafeCastOverflowedUintDowncast(216, value);
}
return uint216(value);
}
/**
* @dev Returns the downcasted uint208 from uint256, reverting on
* overflow (when the input is greater than largest uint208).
*
* Counterpart to Solidity's `uint208` operator.
*
* Requirements:
*
* - input must fit into 208 bits
*/
function toUint208(uint256 value) internal pure returns (uint208) {
if (value > type(uint208).max) {
revert SafeCastOverflowedUintDowncast(208, value);
}
return uint208(value);
}
/**
* @dev Returns the downcasted uint200 from uint256, reverting on
* overflow (when the input is greater than largest uint200).
*
* Counterpart to Solidity's `uint200` operator.
*
* Requirements:
*
* - input must fit into 200 bits
*/
function toUint200(uint256 value) internal pure returns (uint200) {
if (value > type(uint200).max) {
revert SafeCastOverflowedUintDowncast(200, value);
}
return uint200(value);
}
/**
* @dev Returns the downcasted uint192 from uint256, reverting on
* overflow (when the input is greater than largest uint192).
*
* Counterpart to Solidity's `uint192` operator.
*
* Requirements:
*
* - input must fit into 192 bits
*/
function toUint192(uint256 value) internal pure returns (uint192) {
if (value > type(uint192).max) {
revert SafeCastOverflowedUintDowncast(192, value);
}
return uint192(value);
}
/**
* @dev Returns the downcasted uint184 from uint256, reverting on
* overflow (when the input is greater than largest uint184).
*
* Counterpart to Solidity's `uint184` operator.
*
* Requirements:
*
* - input must fit into 184 bits
*/
function toUint184(uint256 value) internal pure returns (uint184) {
if (value > type(uint184).max) {
revert SafeCastOverflowedUintDowncast(184, value);
}
return uint184(value);
}
/**
* @dev Returns the downcasted uint176 from uint256, reverting on
* overflow (when the input is greater than largest uint176).
*
* Counterpart to Solidity's `uint176` operator.
*
* Requirements:
*
* - input must fit into 176 bits
*/
function toUint176(uint256 value) internal pure returns (uint176) {
if (value > type(uint176).max) {
revert SafeCastOverflowedUintDowncast(176, value);
}
return uint176(value);
}
/**
* @dev Returns the downcasted uint168 from uint256, reverting on
* overflow (when the input is greater than largest uint168).
*
* Counterpart to Solidity's `uint168` operator.
*
* Requirements:
*
* - input must fit into 168 bits
*/
function toUint168(uint256 value) internal pure returns (uint168) {
if (value > type(uint168).max) {
revert SafeCastOverflowedUintDowncast(168, value);
}
return uint168(value);
}
/**
* @dev Returns the downcasted uint160 from uint256, reverting on
* overflow (when the input is greater than largest uint160).
*
* Counterpart to Solidity's `uint160` operator.
*
* Requirements:
*
* - input must fit into 160 bits
*/
function toUint160(uint256 value) internal pure returns (uint160) {
if (value > type(uint160).max) {
revert SafeCastOverflowedUintDowncast(160, value);
}
return uint160(value);
}
/**
* @dev Returns the downcasted uint152 from uint256, reverting on
* overflow (when the input is greater than largest uint152).
*
* Counterpart to Solidity's `uint152` operator.
*
* Requirements:
*
* - input must fit into 152 bits
*/
function toUint152(uint256 value) internal pure returns (uint152) {
if (value > type(uint152).max) {
revert SafeCastOverflowedUintDowncast(152, value);
}
return uint152(value);
}
/**
* @dev Returns the downcasted uint144 from uint256, reverting on
* overflow (when the input is greater than largest uint144).
*
* Counterpart to Solidity's `uint144` operator.
*
* Requirements:
*
* - input must fit into 144 bits
*/
function toUint144(uint256 value) internal pure returns (uint144) {
if (value > type(uint144).max) {
revert SafeCastOverflowedUintDowncast(144, value);
}
return uint144(value);
}
/**
* @dev Returns the downcasted uint136 from uint256, reverting on
* overflow (when the input is greater than largest uint136).
*
* Counterpart to Solidity's `uint136` operator.
*
* Requirements:
*
* - input must fit into 136 bits
*/
function toUint136(uint256 value) internal pure returns (uint136) {
if (value > type(uint136).max) {
revert SafeCastOverflowedUintDowncast(136, value);
}
return uint136(value);
}
/**
* @dev Returns the downcasted uint128 from uint256, reverting on
* overflow (when the input is greater than largest uint128).
*
* Counterpart to Solidity's `uint128` operator.
*
* Requirements:
*
* - input must fit into 128 bits
*/
function toUint128(uint256 value) internal pure returns (uint128) {
if (value > type(uint128).max) {
revert SafeCastOverflowedUintDowncast(128, value);
}
return uint128(value);
}
/**
* @dev Returns the downcasted uint120 from uint256, reverting on
* overflow (when the input is greater than largest uint120).
*
* Counterpart to Solidity's `uint120` operator.
*
* Requirements:
*
* - input must fit into 120 bits
*/
function toUint120(uint256 value) internal pure returns (uint120) {
if (value > type(uint120).max) {
revert SafeCastOverflowedUintDowncast(120, value);
}
return uint120(value);
}
/**
* @dev Returns the downcasted uint112 from uint256, reverting on
* overflow (when the input is greater than largest uint112).
*
* Counterpart to Solidity's `uint112` operator.
*
* Requirements:
*
* - input must fit into 112 bits
*/
function toUint112(uint256 value) internal pure returns (uint112) {
if (value > type(uint112).max) {
revert SafeCastOverflowedUintDowncast(112, value);
}
return uint112(value);
}
/**
* @dev Returns the downcasted uint104 from uint256, reverting on
* overflow (when the input is greater than largest uint104).
*
* Counterpart to Solidity's `uint104` operator.
*
* Requirements:
*
* - input must fit into 104 bits
*/
function toUint104(uint256 value) internal pure returns (uint104) {
if (value > type(uint104).max) {
revert SafeCastOverflowedUintDowncast(104, value);
}
return uint104(value);
}
/**
* @dev Returns the downcasted uint96 from uint256, reverting on
* overflow (when the input is greater than largest uint96).
*
* Counterpart to Solidity's `uint96` operator.
*
* Requirements:
*
* - input must fit into 96 bits
*/
function toUint96(uint256 value) internal pure returns (uint96) {
if (value > type(uint96).max) {
revert SafeCastOverflowedUintDowncast(96, value);
}
return uint96(value);
}
/**
* @dev Returns the downcasted uint88 from uint256, reverting on
* overflow (when the input is greater than largest uint88).
*
* Counterpart to Solidity's `uint88` operator.
*
* Requirements:
*
* - input must fit into 88 bits
*/
function toUint88(uint256 value) internal pure returns (uint88) {
if (value > type(uint88).max) {
revert SafeCastOverflowedUintDowncast(88, value);
}
return uint88(value);
}
/**
* @dev Returns the downcasted uint80 from uint256, reverting on
* overflow (when the input is greater than largest uint80).
*
* Counterpart to Solidity's `uint80` operator.
*
* Requirements:
*
* - input must fit into 80 bits
*/
function toUint80(uint256 value) internal pure returns (uint80) {
if (value > type(uint80).max) {
revert SafeCastOverflowedUintDowncast(80, value);
}
return uint80(value);
}
/**
* @dev Returns the downcasted uint72 from uint256, reverting on
* overflow (when the input is greater than largest uint72).
*
* Counterpart to Solidity's `uint72` operator.
*
* Requirements:
*
* - input must fit into 72 bits
*/
function toUint72(uint256 value) internal pure returns (uint72) {
if (value > type(uint72).max) {
revert SafeCastOverflowedUintDowncast(72, value);
}
return uint72(value);
}
/**
* @dev Returns the downcasted uint64 from uint256, reverting on
* overflow (when the input is greater than largest uint64).
*
* Counterpart to Solidity's `uint64` operator.
*
* Requirements:
*
* - input must fit into 64 bits
*/
function toUint64(uint256 value) internal pure returns (uint64) {
if (value > type(uint64).max) {
revert SafeCastOverflowedUintDowncast(64, value);
}
return uint64(value);
}
/**
* @dev Returns the downcasted uint56 from uint256, reverting on
* overflow (when the input is greater than largest uint56).
*
* Counterpart to Solidity's `uint56` operator.
*
* Requirements:
*
* - input must fit into 56 bits
*/
function toUint56(uint256 value) internal pure returns (uint56) {
if (value > type(uint56).max) {
revert SafeCastOverflowedUintDowncast(56, value);
}
return uint56(value);
}
/**
* @dev Returns the downcasted uint48 from uint256, reverting on
* overflow (when the input is greater than largest uint48).
*
* Counterpart to Solidity's `uint48` operator.
*
* Requirements:
*
* - input must fit into 48 bits
*/
function toUint48(uint256 value) internal pure returns (uint48) {
if (value > type(uint48).max) {
revert SafeCastOverflowedUintDowncast(48, value);
}
return uint48(value);
}
/**
* @dev Returns the downcasted uint40 from uint256, reverting on
* overflow (when the input is greater than largest uint40).
*
* Counterpart to Solidity's `uint40` operator.
*
* Requirements:
*
* - input must fit into 40 bits
*/
function toUint40(uint256 value) internal pure returns (uint40) {
if (value > type(uint40).max) {
revert SafeCastOverflowedUintDowncast(40, value);
}
return uint40(value);
}
/**
* @dev Returns the downcasted uint32 from uint256, reverting on
* overflow (when the input is greater than largest uint32).
*
* Counterpart to Solidity's `uint32` operator.
*
* Requirements:
*
* - input must fit into 32 bits
*/
function toUint32(uint256 value) internal pure returns (uint32) {
if (value > type(uint32).max) {
revert SafeCastOverflowedUintDowncast(32, value);
}
return uint32(value);
}
/**
* @dev Returns the downcasted uint24 from uint256, reverting on
* overflow (when the input is greater than largest uint24).
*
* Counterpart to Solidity's `uint24` operator.
*
* Requirements:
*
* - input must fit into 24 bits
*/
function toUint24(uint256 value) internal pure returns (uint24) {
if (value > type(uint24).max) {
revert SafeCastOverflowedUintDowncast(24, value);
}
return uint24(value);
}
/**
* @dev Returns the downcasted uint16 from uint256, reverting on
* overflow (when the input is greater than largest uint16).
*
* Counterpart to Solidity's `uint16` operator.
*
* Requirements:
*
* - input must fit into 16 bits
*/
function toUint16(uint256 value) internal pure returns (uint16) {
if (value > type(uint16).max) {
revert SafeCastOverflowedUintDowncast(16, value);
}
return uint16(value);
}
/**
* @dev Returns the downcasted uint8 from uint256, reverting on
* overflow (when the input is greater than largest uint8).
*
* Counterpart to Solidity's `uint8` operator.
*
* Requirements:
*
* - input must fit into 8 bits
*/
function toUint8(uint256 value) internal pure returns (uint8) {
if (value > type(uint8).max) {
revert SafeCastOverflowedUintDowncast(8, value);
}
return uint8(value);
}
/**
* @dev Converts a signed int256 into an unsigned uint256.
*
* Requirements:
*
* - input must be greater than or equal to 0.
*/
function toUint256(int256 value) internal pure returns (uint256) {
if (value < 0) {
revert SafeCastOverflowedIntToUint(value);
}
return uint256(value);
}
/**
* @dev Returns the downcasted int248 from int256, reverting on
* overflow (when the input is less than smallest int248 or
* greater than largest int248).
*
* Counterpart to Solidity's `int248` operator.
*
* Requirements:
*
* - input must fit into 248 bits
*/
function toInt248(int256 value) internal pure returns (int248 downcasted) {
downcasted = int248(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(248, value);
}
}
/**
* @dev Returns the downcasted int240 from int256, reverting on
* overflow (when the input is less than smallest int240 or
* greater than largest int240).
*
* Counterpart to Solidity's `int240` operator.
*
* Requirements:
*
* - input must fit into 240 bits
*/
function toInt240(int256 value) internal pure returns (int240 downcasted) {
downcasted = int240(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(240, value);
}
}
/**
* @dev Returns the downcasted int232 from int256, reverting on
* overflow (when the input is less than smallest int232 or
* greater than largest int232).
*
* Counterpart to Solidity's `int232` operator.
*
* Requirements:
*
* - input must fit into 232 bits
*/
function toInt232(int256 value) internal pure returns (int232 downcasted) {
downcasted = int232(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(232, value);
}
}
/**
* @dev Returns the downcasted int224 from int256, reverting on
* overflow (when the input is less than smallest int224 or
* greater than largest int224).
*
* Counterpart to Solidity's `int224` operator.
*
* Requirements:
*
* - input must fit into 224 bits
*/
function toInt224(int256 value) internal pure returns (int224 downcasted) {
downcasted = int224(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(224, value);
}
}
/**
* @dev Returns the downcasted int216 from int256, reverting on
* overflow (when the input is less than smallest int216 or
* greater than largest int216).
*
* Counterpart to Solidity's `int216` operator.
*
* Requirements:
*
* - input must fit into 216 bits
*/
function toInt216(int256 value) internal pure returns (int216 downcasted) {
downcasted = int216(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(216, value);
}
}
/**
* @dev Returns the downcasted int208 from int256, reverting on
* overflow (when the input is less than smallest int208 or
* greater than largest int208).
*
* Counterpart to Solidity's `int208` operator.
*
* Requirements:
*
* - input must fit into 208 bits
*/
function toInt208(int256 value) internal pure returns (int208 downcasted) {
downcasted = int208(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(208, value);
}
}
/**
* @dev Returns the downcasted int200 from int256, reverting on
* overflow (when the input is less than smallest int200 or
* greater than largest int200).
*
* Counterpart to Solidity's `int200` operator.
*
* Requirements:
*
* - input must fit into 200 bits
*/
function toInt200(int256 value) internal pure returns (int200 downcasted) {
downcasted = int200(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(200, value);
}
}
/**
* @dev Returns the downcasted int192 from int256, reverting on
* overflow (when the input is less than smallest int192 or
* greater than largest int192).
*
* Counterpart to Solidity's `int192` operator.
*
* Requirements:
*
* - input must fit into 192 bits
*/
function toInt192(int256 value) internal pure returns (int192 downcasted) {
downcasted = int192(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(192, value);
}
}
/**
* @dev Returns the downcasted int184 from int256, reverting on
* overflow (when the input is less than smallest int184 or
* greater than largest int184).
*
* Counterpart to Solidity's `int184` operator.
*
* Requirements:
*
* - input must fit into 184 bits
*/
function toInt184(int256 value) internal pure returns (int184 downcasted) {
downcasted = int184(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(184, value);
}
}
/**
* @dev Returns the downcasted int176 from int256, reverting on
* overflow (when the input is less than smallest int176 or
* greater than largest int176).
*
* Counterpart to Solidity's `int176` operator.
*
* Requirements:
*
* - input must fit into 176 bits
*/
function toInt176(int256 value) internal pure returns (int176 downcasted) {
downcasted = int176(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(176, value);
}
}
/**
* @dev Returns the downcasted int168 from int256, reverting on
* overflow (when the input is less than smallest int168 or
* greater than largest int168).
*
* Counterpart to Solidity's `int168` operator.
*
* Requirements:
*
* - input must fit into 168 bits
*/
function toInt168(int256 value) internal pure returns (int168 downcasted) {
downcasted = int168(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(168, value);
}
}
/**
* @dev Returns the downcasted int160 from int256, reverting on
* overflow (when the input is less than smallest int160 or
* greater than largest int160).
*
* Counterpart to Solidity's `int160` operator.
*
* Requirements:
*
* - input must fit into 160 bits
*/
function toInt160(int256 value) internal pure returns (int160 downcasted) {
downcasted = int160(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(160, value);
}
}
/**
* @dev Returns the downcasted int152 from int256, reverting on
* overflow (when the input is less than smallest int152 or
* greater than largest int152).
*
* Counterpart to Solidity's `int152` operator.
*
* Requirements:
*
* - input must fit into 152 bits
*/
function toInt152(int256 value) internal pure returns (int152 downcasted) {
downcasted = int152(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(152, value);
}
}
/**
* @dev Returns the downcasted int144 from int256, reverting on
* overflow (when the input is less than smallest int144 or
* greater than largest int144).
*
* Counterpart to Solidity's `int144` operator.
*
* Requirements:
*
* - input must fit into 144 bits
*/
function toInt144(int256 value) internal pure returns (int144 downcasted) {
downcasted = int144(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(144, value);
}
}
/**
* @dev Returns the downcasted int136 from int256, reverting on
* overflow (when the input is less than smallest int136 or
* greater than largest int136).
*
* Counterpart to Solidity's `int136` operator.
*
* Requirements:
*
* - input must fit into 136 bits
*/
function toInt136(int256 value) internal pure returns (int136 downcasted) {
downcasted = int136(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(136, value);
}
}
/**
* @dev Returns the downcasted int128 from int256, reverting on
* overflow (when the input is less than smallest int128 or
* greater than largest int128).
*
* Counterpart to Solidity's `int128` operator.
*
* Requirements:
*
* - input must fit into 128 bits
*/
function toInt128(int256 value) internal pure returns (int128 downcasted) {
downcasted = int128(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(128, value);
}
}
/**
* @dev Returns the downcasted int120 from int256, reverting on
* overflow (when the input is less than smallest int120 or
* greater than largest int120).
*
* Counterpart to Solidity's `int120` operator.
*
* Requirements:
*
* - input must fit into 120 bits
*/
function toInt120(int256 value) internal pure returns (int120 downcasted) {
downcasted = int120(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(120, value);
}
}
/**
* @dev Returns the downcasted int112 from int256, reverting on
* overflow (when the input is less than smallest int112 or
* greater than largest int112).
*
* Counterpart to Solidity's `int112` operator.
*
* Requirements:
*
* - input must fit into 112 bits
*/
function toInt112(int256 value) internal pure returns (int112 downcasted) {
downcasted = int112(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(112, value);
}
}
/**
* @dev Returns the downcasted int104 from int256, reverting on
* overflow (when the input is less than smallest int104 or
* greater than largest int104).
*
* Counterpart to Solidity's `int104` operator.
*
* Requirements:
*
* - input must fit into 104 bits
*/
function toInt104(int256 value) internal pure returns (int104 downcasted) {
downcasted = int104(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(104, value);
}
}
/**
* @dev Returns the downcasted int96 from int256, reverting on
* overflow (when the input is less than smallest int96 or
* greater than largest int96).
*
* Counterpart to Solidity's `int96` operator.
*
* Requirements:
*
* - input must fit into 96 bits
*/
function toInt96(int256 value) internal pure returns (int96 downcasted) {
downcasted = int96(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(96, value);
}
}
/**
* @dev Returns the downcasted int88 from int256, reverting on
* overflow (when the input is less than smallest int88 or
* greater than largest int88).
*
* Counterpart to Solidity's `int88` operator.
*
* Requirements:
*
* - input must fit into 88 bits
*/
function toInt88(int256 value) internal pure returns (int88 downcasted) {
downcasted = int88(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(88, value);
}
}
/**
* @dev Returns the downcasted int80 from int256, reverting on
* overflow (when the input is less than smallest int80 or
* greater than largest int80).
*
* Counterpart to Solidity's `int80` operator.
*
* Requirements:
*
* - input must fit into 80 bits
*/
function toInt80(int256 value) internal pure returns (int80 downcasted) {
downcasted = int80(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(80, value);
}
}
/**
* @dev Returns the downcasted int72 from int256, reverting on
* overflow (when the input is less than smallest int72 or
* greater than largest int72).
*
* Counterpart to Solidity's `int72` operator.
*
* Requirements:
*
* - input must fit into 72 bits
*/
function toInt72(int256 value) internal pure returns (int72 downcasted) {
downcasted = int72(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(72, value);
}
}
/**
* @dev Returns the downcasted int64 from int256, reverting on
* overflow (when the input is less than smallest int64 or
* greater than largest int64).
*
* Counterpart to Solidity's `int64` operator.
*
* Requirements:
*
* - input must fit into 64 bits
*/
function toInt64(int256 value) internal pure returns (int64 downcasted) {
downcasted = int64(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(64, value);
}
}
/**
* @dev Returns the downcasted int56 from int256, reverting on
* overflow (when the input is less than smallest int56 or
* greater than largest int56).
*
* Counterpart to Solidity's `int56` operator.
*
* Requirements:
*
* - input must fit into 56 bits
*/
function toInt56(int256 value) internal pure returns (int56 downcasted) {
downcasted = int56(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(56, value);
}
}
/**
* @dev Returns the downcasted int48 from int256, reverting on
* overflow (when the input is less than smallest int48 or
* greater than largest int48).
*
* Counterpart to Solidity's `int48` operator.
*
* Requirements:
*
* - input must fit into 48 bits
*/
function toInt48(int256 value) internal pure returns (int48 downcasted) {
downcasted = int48(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(48, value);
}
}
/**
* @dev Returns the downcasted int40 from int256, reverting on
* overflow (when the input is less than smallest int40 or
* greater than largest int40).
*
* Counterpart to Solidity's `int40` operator.
*
* Requirements:
*
* - input must fit into 40 bits
*/
function toInt40(int256 value) internal pure returns (int40 downcasted) {
downcasted = int40(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(40, value);
}
}
/**
* @dev Returns the downcasted int32 from int256, reverting on
* overflow (when the input is less than smallest int32 or
* greater than largest int32).
*
* Counterpart to Solidity's `int32` operator.
*
* Requirements:
*
* - input must fit into 32 bits
*/
function toInt32(int256 value) internal pure returns (int32 downcasted) {
downcasted = int32(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(32, value);
}
}
/**
* @dev Returns the downcasted int24 from int256, reverting on
* overflow (when the input is less than smallest int24 or
* greater than largest int24).
*
* Counterpart to Solidity's `int24` operator.
*
* Requirements:
*
* - input must fit into 24 bits
*/
function toInt24(int256 value) internal pure returns (int24 downcasted) {
downcasted = int24(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(24, value);
}
}
/**
* @dev Returns the downcasted int16 from int256, reverting on
* overflow (when the input is less than smallest int16 or
* greater than largest int16).
*
* Counterpart to Solidity's `int16` operator.
*
* Requirements:
*
* - input must fit into 16 bits
*/
function toInt16(int256 value) internal pure returns (int16 downcasted) {
downcasted = int16(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(16, value);
}
}
/**
* @dev Returns the downcasted int8 from int256, reverting on
* overflow (when the input is less than smallest int8 or
* greater than largest int8).
*
* Counterpart to Solidity's `int8` operator.
*
* Requirements:
*
* - input must fit into 8 bits
*/
function toInt8(int256 value) internal pure returns (int8 downcasted) {
downcasted = int8(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(8, value);
}
}
/**
* @dev Converts an unsigned uint256 into a signed int256.
*
* Requirements:
*
* - input must be less than or equal to maxInt256.
*/
function toInt256(uint256 value) internal pure returns (int256) {
// Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive
if (value > uint256(type(int256).max)) {
revert SafeCastOverflowedUintToInt(value);
}
return int256(value);
}
/**
* @dev Cast a boolean (false or true) to a uint256 (0 or 1) with no jump.
*/
function toUint(bool b) internal pure returns (uint256 u) {
assembly ("memory-safe") {
u := iszero(iszero(b))
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (utils/math/Math.sol)
pragma solidity ^0.8.20;
import {Panic} from "../Panic.sol";
import {SafeCast} from "./SafeCast.sol";
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library Math {
enum Rounding {
Floor, // Toward negative infinity
Ceil, // Toward positive infinity
Trunc, // Toward zero
Expand // Away from zero
}
/**
* @dev Return the 512-bit addition of two uint256.
*
* The result is stored in two 256 variables such that sum = high * 2²⁵⁶ + low.
*/
function add512(uint256 a, uint256 b) internal pure returns (uint256 high, uint256 low) {
assembly ("memory-safe") {
low := add(a, b)
high := lt(low, a)
}
}
/**
* @dev Return the 512-bit multiplication of two uint256.
*
* The result is stored in two 256 variables such that product = high * 2²⁵⁶ + low.
*/
function mul512(uint256 a, uint256 b) internal pure returns (uint256 high, uint256 low) {
// 512-bit multiply [high low] = x * y. Compute the product mod 2²⁵⁶ and mod 2²⁵⁶ - 1, then use
// the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = high * 2²⁵⁶ + low.
assembly ("memory-safe") {
let mm := mulmod(a, b, not(0))
low := mul(a, b)
high := sub(sub(mm, low), lt(mm, low))
}
}
/**
* @dev Returns the addition of two unsigned integers, with a success flag (no overflow).
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
uint256 c = a + b;
success = c >= a;
result = c * SafeCast.toUint(success);
}
}
/**
* @dev Returns the subtraction of two unsigned integers, with a success flag (no overflow).
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
uint256 c = a - b;
success = c <= a;
result = c * SafeCast.toUint(success);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with a success flag (no overflow).
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
uint256 c = a * b;
assembly ("memory-safe") {
// Only true when the multiplication doesn't overflow
// (c / a == b) || (a == 0)
success := or(eq(div(c, a), b), iszero(a))
}
// equivalent to: success ? c : 0
result = c * SafeCast.toUint(success);
}
}
/**
* @dev Returns the division of two unsigned integers, with a success flag (no division by zero).
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
success = b > 0;
assembly ("memory-safe") {
// The `DIV` opcode returns zero when the denominator is 0.
result := div(a, b)
}
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a success flag (no division by zero).
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
success = b > 0;
assembly ("memory-safe") {
// The `MOD` opcode returns zero when the denominator is 0.
result := mod(a, b)
}
}
}
/**
* @dev Unsigned saturating addition, bounds to `2²⁵⁶ - 1` instead of overflowing.
*/
function saturatingAdd(uint256 a, uint256 b) internal pure returns (uint256) {
(bool success, uint256 result) = tryAdd(a, b);
return ternary(success, result, type(uint256).max);
}
/**
* @dev Unsigned saturating subtraction, bounds to zero instead of overflowing.
*/
function saturatingSub(uint256 a, uint256 b) internal pure returns (uint256) {
(, uint256 result) = trySub(a, b);
return result;
}
/**
* @dev Unsigned saturating multiplication, bounds to `2²⁵⁶ - 1` instead of overflowing.
*/
function saturatingMul(uint256 a, uint256 b) internal pure returns (uint256) {
(bool success, uint256 result) = tryMul(a, b);
return ternary(success, result, type(uint256).max);
}
/**
* @dev Branchless ternary evaluation for `a ? b : c`. Gas costs are constant.
*
* IMPORTANT: This function may reduce bytecode size and consume less gas when used standalone.
* However, the compiler may optimize Solidity ternary operations (i.e. `a ? b : c`) to only compute
* one branch when needed, making this function more expensive.
*/
function ternary(bool condition, uint256 a, uint256 b) internal pure returns (uint256) {
unchecked {
// branchless ternary works because:
// b ^ (a ^ b) == a
// b ^ 0 == b
return b ^ ((a ^ b) * SafeCast.toUint(condition));
}
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return ternary(a > b, a, b);
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return ternary(a < b, a, b);
}
/**
* @dev Returns the average of two numbers. The result is rounded towards
* zero.
*/
function average(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b) / 2 can overflow.
return (a & b) + (a ^ b) / 2;
}
/**
* @dev Returns the ceiling of the division of two numbers.
*
* This differs from standard division with `/` in that it rounds towards infinity instead
* of rounding towards zero.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
if (b == 0) {
// Guarantee the same behavior as in a regular Solidity division.
Panic.panic(Panic.DIVISION_BY_ZERO);
}
// The following calculation ensures accurate ceiling division without overflow.
// Since a is non-zero, (a - 1) / b will not overflow.
// The largest possible result occurs when (a - 1) / b is type(uint256).max,
// but the largest value we can obtain is type(uint256).max - 1, which happens
// when a = type(uint256).max and b = 1.
unchecked {
return SafeCast.toUint(a > 0) * ((a - 1) / b + 1);
}
}
/**
* @dev Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or
* denominator == 0.
*
* Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by
* Uniswap Labs also under MIT license.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
unchecked {
(uint256 high, uint256 low) = mul512(x, y);
// Handle non-overflow cases, 256 by 256 division.
if (high == 0) {
// Solidity will revert if denominator == 0, unlike the div opcode on its own.
// The surrounding unchecked block does not change this fact.
// See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
return low / denominator;
}
// Make sure the result is less than 2²⁵⁶. Also prevents denominator == 0.
if (denominator <= high) {
Panic.panic(ternary(denominator == 0, Panic.DIVISION_BY_ZERO, Panic.UNDER_OVERFLOW));
}
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [high low].
uint256 remainder;
assembly ("memory-safe") {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
high := sub(high, gt(remainder, low))
low := sub(low, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator.
// Always >= 1. See https://cs.stackexchange.com/q/138556/92363.
uint256 twos = denominator & (0 - denominator);
assembly ("memory-safe") {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [high low] by twos.
low := div(low, twos)
// Flip twos such that it is 2²⁵⁶ / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from high into low.
low |= high * twos;
// Invert denominator mod 2²⁵⁶. Now that denominator is an odd number, it has an inverse modulo 2²⁵⁶ such
// that denominator * inv ≡ 1 mod 2²⁵⁶. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv ≡ 1 mod 2⁴.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also
// works in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2⁸
inverse *= 2 - denominator * inverse; // inverse mod 2¹⁶
inverse *= 2 - denominator * inverse; // inverse mod 2³²
inverse *= 2 - denominator * inverse; // inverse mod 2⁶⁴
inverse *= 2 - denominator * inverse; // inverse mod 2¹²⁸
inverse *= 2 - denominator * inverse; // inverse mod 2²⁵⁶
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2²⁵⁶. Since the preconditions guarantee that the outcome is
// less than 2²⁵⁶, this is the final result. We don't need to compute the high bits of the result and high
// is no longer required.
result = low * inverse;
return result;
}
}
/**
* @dev Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
return mulDiv(x, y, denominator) + SafeCast.toUint(unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0);
}
/**
* @dev Calculates floor(x * y >> n) with full precision. Throws if result overflows a uint256.
*/
function mulShr(uint256 x, uint256 y, uint8 n) internal pure returns (uint256 result) {
unchecked {
(uint256 high, uint256 low) = mul512(x, y);
if (high >= 1 << n) {
Panic.panic(Panic.UNDER_OVERFLOW);
}
return (high << (256 - n)) | (low >> n);
}
}
/**
* @dev Calculates x * y >> n with full precision, following the selected rounding direction.
*/
function mulShr(uint256 x, uint256 y, uint8 n, Rounding rounding) internal pure returns (uint256) {
return mulShr(x, y, n) + SafeCast.toUint(unsignedRoundsUp(rounding) && mulmod(x, y, 1 << n) > 0);
}
/**
* @dev Calculate the modular multiplicative inverse of a number in Z/nZ.
*
* If n is a prime, then Z/nZ is a field. In that case all elements are inversible, except 0.
* If n is not a prime, then Z/nZ is not a field, and some elements might not be inversible.
*
* If the input value is not inversible, 0 is returned.
*
* NOTE: If you know for sure that n is (big) a prime, it may be cheaper to use Fermat's little theorem and get the
* inverse using `Math.modExp(a, n - 2, n)`. See {invModPrime}.
*/
function invMod(uint256 a, uint256 n) internal pure returns (uint256) {
unchecked {
if (n == 0) return 0;
// The inverse modulo is calculated using the Extended Euclidean Algorithm (iterative version)
// Used to compute integers x and y such that: ax + ny = gcd(a, n).
// When the gcd is 1, then the inverse of a modulo n exists and it's x.
// ax + ny = 1
// ax = 1 + (-y)n
// ax ≡ 1 (mod n) # x is the inverse of a modulo n
// If the remainder is 0 the gcd is n right away.
uint256 remainder = a % n;
uint256 gcd = n;
// Therefore the initial coefficients are:
// ax + ny = gcd(a, n) = n
// 0a + 1n = n
int256 x = 0;
int256 y = 1;
while (remainder != 0) {
uint256 quotient = gcd / remainder;
(gcd, remainder) = (
// The old remainder is the next gcd to try.
remainder,
// Compute the next remainder.
// Can't overflow given that (a % gcd) * (gcd // (a % gcd)) <= gcd
// where gcd is at most n (capped to type(uint256).max)
gcd - remainder * quotient
);
(x, y) = (
// Increment the coefficient of a.
y,
// Decrement the coefficient of n.
// Can overflow, but the result is casted to uint256 so that the
// next value of y is "wrapped around" to a value between 0 and n - 1.
x - y * int256(quotient)
);
}
if (gcd != 1) return 0; // No inverse exists.
return ternary(x < 0, n - uint256(-x), uint256(x)); // Wrap the result if it's negative.
}
}
/**
* @dev Variant of {invMod}. More efficient, but only works if `p` is known to be a prime greater than `2`.
*
* From https://en.wikipedia.org/wiki/Fermat%27s_little_theorem[Fermat's little theorem], we know that if p is
* prime, then `a**(p-1) ≡ 1 mod p`. As a consequence, we have `a * a**(p-2) ≡ 1 mod p`, which means that
* `a**(p-2)` is the modular multiplicative inverse of a in Fp.
*
* NOTE: this function does NOT check that `p` is a prime greater than `2`.
*/
function invModPrime(uint256 a, uint256 p) internal view returns (uint256) {
unchecked {
return Math.modExp(a, p - 2, p);
}
}
/**
* @dev Returns the modular exponentiation of the specified base, exponent and modulus (b ** e % m)
*
* Requirements:
* - modulus can't be zero
* - underlying staticcall to precompile must succeed
*
* IMPORTANT: The result is only valid if the underlying call succeeds. When using this function, make
* sure the chain you're using it on supports the precompiled contract for modular exponentiation
* at address 0x05 as specified in https://eips.ethereum.org/EIPS/eip-198[EIP-198]. Otherwise,
* the underlying function will succeed given the lack of a revert, but the result may be incorrectly
* interpreted as 0.
*/
function modExp(uint256 b, uint256 e, uint256 m) internal view returns (uint256) {
(bool success, uint256 result) = tryModExp(b, e, m);
if (!success) {
Panic.panic(Panic.DIVISION_BY_ZERO);
}
return result;
}
/**
* @dev Returns the modular exponentiation of the specified base, exponent and modulus (b ** e % m).
* It includes a success flag indicating if the operation succeeded. Operation will be marked as failed if trying
* to operate modulo 0 or if the underlying precompile reverted.
*
* IMPORTANT: The result is only valid if the success flag is true. When using this function, make sure the chain
* you're using it on supports the precompiled contract for modular exponentiation at address 0x05 as specified in
* https://eips.ethereum.org/EIPS/eip-198[EIP-198]. Otherwise, the underlying function will succeed given the lack
* of a revert, but the result may be incorrectly interpreted as 0.
*/
function tryModExp(uint256 b, uint256 e, uint256 m) internal view returns (bool success, uint256 result) {
if (m == 0) return (false, 0);
assembly ("memory-safe") {
let ptr := mload(0x40)
// | Offset | Content | Content (Hex) |
// |-----------|------------|--------------------------------------------------------------------|
// | 0x00:0x1f | size of b | 0x0000000000000000000000000000000000000000000000000000000000000020 |
// | 0x20:0x3f | size of e | 0x0000000000000000000000000000000000000000000000000000000000000020 |
// | 0x40:0x5f | size of m | 0x0000000000000000000000000000000000000000000000000000000000000020 |
// | 0x60:0x7f | value of b | 0x<.............................................................b> |
// | 0x80:0x9f | value of e | 0x<.............................................................e> |
// | 0xa0:0xbf | value of m | 0x<.............................................................m> |
mstore(ptr, 0x20)
mstore(add(ptr, 0x20), 0x20)
mstore(add(ptr, 0x40), 0x20)
mstore(add(ptr, 0x60), b)
mstore(add(ptr, 0x80), e)
mstore(add(ptr, 0xa0), m)
// Given the result < m, it's guaranteed to fit in 32 bytes,
// so we can use the memory scratch space located at offset 0.
success := staticcall(gas(), 0x05, ptr, 0xc0, 0x00, 0x20)
result := mload(0x00)
}
}
/**
* @dev Variant of {modExp} that supports inputs of arbitrary length.
*/
function modExp(bytes memory b, bytes memory e, bytes memory m) internal view returns (bytes memory) {
(bool success, bytes memory result) = tryModExp(b, e, m);
if (!success) {
Panic.panic(Panic.DIVISION_BY_ZERO);
}
return result;
}
/**
* @dev Variant of {tryModExp} that supports inputs of arbitrary length.
*/
function tryModExp(
bytes memory b,
bytes memory e,
bytes memory m
) internal view returns (bool success, bytes memory result) {
if (_zeroBytes(m)) return (false, new bytes(0));
uint256 mLen = m.length;
// Encode call args in result and move the free memory pointer
result = abi.encodePacked(b.length, e.length, mLen, b, e, m);
assembly ("memory-safe") {
let dataPtr := add(result, 0x20)
// Write result on top of args to avoid allocating extra memory.
success := staticcall(gas(), 0x05, dataPtr, mload(result), dataPtr, mLen)
// Overwrite the length.
// result.length > returndatasize() is guaranteed because returndatasize() == m.length
mstore(result, mLen)
// Set the memory pointer after the returned data.
mstore(0x40, add(dataPtr, mLen))
}
}
/**
* @dev Returns whether the provided byte array is zero.
*/
function _zeroBytes(bytes memory byteArray) private pure returns (bool) {
for (uint256 i = 0; i < byteArray.length; ++i) {
if (byteArray[i] != 0) {
return false;
}
}
return true;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded
* towards zero.
*
* This method is based on Newton's method for computing square roots; the algorithm is restricted to only
* using integer operations.
*/
function sqrt(uint256 a) internal pure returns (uint256) {
unchecked {
// Take care of easy edge cases when a == 0 or a == 1
if (a <= 1) {
return a;
}
// In this function, we use Newton's method to get a root of `f(x) := x² - a`. It involves building a
// sequence x_n that converges toward sqrt(a). For each iteration x_n, we also define the error between
// the current value as `ε_n = | x_n - sqrt(a) |`.
//
// For our first estimation, we consider `e` the smallest power of 2 which is bigger than the square root
// of the target. (i.e. `2**(e-1) ≤ sqrt(a) < 2**e`). We know that `e ≤ 128` because `(2¹²⁸)² = 2²⁵⁶` is
// bigger than any uint256.
//
// By noticing that
// `2**(e-1) ≤ sqrt(a) < 2**e → (2**(e-1))² ≤ a < (2**e)² → 2**(2*e-2) ≤ a < 2**(2*e)`
// we can deduce that `e - 1` is `log2(a) / 2`. We can thus compute `x_n = 2**(e-1)` using a method similar
// to the msb function.
uint256 aa = a;
uint256 xn = 1;
if (aa >= (1 << 128)) {
aa >>= 128;
xn <<= 64;
}
if (aa >= (1 << 64)) {
aa >>= 64;
xn <<= 32;
}
if (aa >= (1 << 32)) {
aa >>= 32;
xn <<= 16;
}
if (aa >= (1 << 16)) {
aa >>= 16;
xn <<= 8;
}
if (aa >= (1 << 8)) {
aa >>= 8;
xn <<= 4;
}
if (aa >= (1 << 4)) {
aa >>= 4;
xn <<= 2;
}
if (aa >= (1 << 2)) {
xn <<= 1;
}
// We now have x_n such that `x_n = 2**(e-1) ≤ sqrt(a) < 2**e = 2 * x_n`. This implies ε_n ≤ 2**(e-1).
//
// We can refine our estimation by noticing that the middle of that interval minimizes the error.
// If we move x_n to equal 2**(e-1) + 2**(e-2), then we reduce the error to ε_n ≤ 2**(e-2).
// This is going to be our x_0 (and ε_0)
xn = (3 * xn) >> 1; // ε_0 := | x_0 - sqrt(a) | ≤ 2**(e-2)
// From here, Newton's method give us:
// x_{n+1} = (x_n + a / x_n) / 2
//
// One should note that:
// x_{n+1}² - a = ((x_n + a / x_n) / 2)² - a
// = ((x_n² + a) / (2 * x_n))² - a
// = (x_n⁴ + 2 * a * x_n² + a²) / (4 * x_n²) - a
// = (x_n⁴ + 2 * a * x_n² + a² - 4 * a * x_n²) / (4 * x_n²)
// = (x_n⁴ - 2 * a * x_n² + a²) / (4 * x_n²)
// = (x_n² - a)² / (2 * x_n)²
// = ((x_n² - a) / (2 * x_n))²
// ≥ 0
// Which proves that for all n ≥ 1, sqrt(a) ≤ x_n
//
// This gives us the proof of quadratic convergence of the sequence:
// ε_{n+1} = | x_{n+1} - sqrt(a) |
// = | (x_n + a / x_n) / 2 - sqrt(a) |
// = | (x_n² + a - 2*x_n*sqrt(a)) / (2 * x_n) |
// = | (x_n - sqrt(a))² / (2 * x_n) |
// = | ε_n² / (2 * x_n) |
// = ε_n² / | (2 * x_n) |
//
// For the first iteration, we have a special case where x_0 is known:
// ε_1 = ε_0² / | (2 * x_0) |
// ≤ (2**(e-2))² / (2 * (2**(e-1) + 2**(e-2)))
// ≤ 2**(2*e-4) / (3 * 2**(e-1))
// ≤ 2**(e-3) / 3
// ≤ 2**(e-3-log2(3))
// ≤ 2**(e-4.5)
//
// For the following iterations, we use the fact that, 2**(e-1) ≤ sqrt(a) ≤ x_n:
// ε_{n+1} = ε_n² / | (2 * x_n) |
// ≤ (2**(e-k))² / (2 * 2**(e-1))
// ≤ 2**(2*e-2*k) / 2**e
// ≤ 2**(e-2*k)
xn = (xn + a / xn) >> 1; // ε_1 := | x_1 - sqrt(a) | ≤ 2**(e-4.5) -- special case, see above
xn = (xn + a / xn) >> 1; // ε_2 := | x_2 - sqrt(a) | ≤ 2**(e-9) -- general case with k = 4.5
xn = (xn + a / xn) >> 1; // ε_3 := | x_3 - sqrt(a) | ≤ 2**(e-18) -- general case with k = 9
xn = (xn + a / xn) >> 1; // ε_4 := | x_4 - sqrt(a) | ≤ 2**(e-36) -- general case with k = 18
xn = (xn + a / xn) >> 1; // ε_5 := | x_5 - sqrt(a) | ≤ 2**(e-72) -- general case with k = 36
xn = (xn + a / xn) >> 1; // ε_6 := | x_6 - sqrt(a) | ≤ 2**(e-144) -- general case with k = 72
// Because e ≤ 128 (as discussed during the first estimation phase), we know have reached a precision
// ε_6 ≤ 2**(e-144) < 1. Given we're operating on integers, then we can ensure that xn is now either
// sqrt(a) or sqrt(a) + 1.
return xn - SafeCast.toUint(xn > a / xn);
}
}
/**
* @dev Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + SafeCast.toUint(unsignedRoundsUp(rounding) && result * result < a);
}
}
/**
* @dev Return the log in base 2 of a positive value rounded towards zero.
* Returns 0 if given 0.
*/
function log2(uint256 x) internal pure returns (uint256 r) {
// If value has upper 128 bits set, log2 result is at least 128
r = SafeCast.toUint(x > 0xffffffffffffffffffffffffffffffff) << 7;
// If upper 64 bits of 128-bit half set, add 64 to result
r |= SafeCast.toUint((x >> r) > 0xffffffffffffffff) << 6;
// If upper 32 bits of 64-bit half set, add 32 to result
r |= SafeCast.toUint((x >> r) > 0xffffffff) << 5;
// If upper 16 bits of 32-bit half set, add 16 to result
r |= SafeCast.toUint((x >> r) > 0xffff) << 4;
// If upper 8 bits of 16-bit half set, add 8 to result
r |= SafeCast.toUint((x >> r) > 0xff) << 3;
// If upper 4 bits of 8-bit half set, add 4 to result
r |= SafeCast.toUint((x >> r) > 0xf) << 2;
// Shifts value right by the current result and use it as an index into this lookup table:
//
// | x (4 bits) | index | table[index] = MSB position |
// |------------|---------|-----------------------------|
// | 0000 | 0 | table[0] = 0 |
// | 0001 | 1 | table[1] = 0 |
// | 0010 | 2 | table[2] = 1 |
// | 0011 | 3 | table[3] = 1 |
// | 0100 | 4 | table[4] = 2 |
// | 0101 | 5 | table[5] = 2 |
// | 0110 | 6 | table[6] = 2 |
// | 0111 | 7 | table[7] = 2 |
// | 1000 | 8 | table[8] = 3 |
// | 1001 | 9 | table[9] = 3 |
// | 1010 | 10 | table[10] = 3 |
// | 1011 | 11 | table[11] = 3 |
// | 1100 | 12 | table[12] = 3 |
// | 1101 | 13 | table[13] = 3 |
// | 1110 | 14 | table[14] = 3 |
// | 1111 | 15 | table[15] = 3 |
//
// The lookup table is represented as a 32-byte value with the MSB positions for 0-15 in the last 16 bytes.
assembly ("memory-safe") {
r := or(r, byte(shr(r, x), 0x0000010102020202030303030303030300000000000000000000000000000000))
}
}
/**
* @dev Return the log in base 2, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 1 << result < value);
}
}
/**
* @dev Return the log in base 10 of a positive value rounded towards zero.
* Returns 0 if given 0.
*/
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10 ** 64) {
value /= 10 ** 64;
result += 64;
}
if (value >= 10 ** 32) {
value /= 10 ** 32;
result += 32;
}
if (value >= 10 ** 16) {
value /= 10 ** 16;
result += 16;
}
if (value >= 10 ** 8) {
value /= 10 ** 8;
result += 8;
}
if (value >= 10 ** 4) {
value /= 10 ** 4;
result += 4;
}
if (value >= 10 ** 2) {
value /= 10 ** 2;
result += 2;
}
if (value >= 10 ** 1) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 10 ** result < value);
}
}
/**
* @dev Return the log in base 256 of a positive value rounded towards zero.
* Returns 0 if given 0.
*
* Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
*/
function log256(uint256 x) internal pure returns (uint256 r) {
// If value has upper 128 bits set, log2 result is at least 128
r = SafeCast.toUint(x > 0xffffffffffffffffffffffffffffffff) << 7;
// If upper 64 bits of 128-bit half set, add 64 to result
r |= SafeCast.toUint((x >> r) > 0xffffffffffffffff) << 6;
// If upper 32 bits of 64-bit half set, add 32 to result
r |= SafeCast.toUint((x >> r) > 0xffffffff) << 5;
// If upper 16 bits of 32-bit half set, add 16 to result
r |= SafeCast.toUint((x >> r) > 0xffff) << 4;
// Add 1 if upper 8 bits of 16-bit half set, and divide accumulated result by 8
return (r >> 3) | SafeCast.toUint((x >> r) > 0xff);
}
/**
* @dev Return the log in base 256, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 1 << (result << 3) < value);
}
}
/**
* @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.
*/
function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {
return uint8(rounding) % 2 == 1;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/draft-IERC6093.sol)
pragma solidity >=0.8.4;
/**
* @dev Standard ERC-20 Errors
* Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-20 tokens.
*/
interface IERC20Errors {
/**
* @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
* @param balance Current balance for the interacting account.
* @param needed Minimum amount required to perform a transfer.
*/
error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);
/**
* @dev Indicates a failure with the token `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
*/
error ERC20InvalidSender(address sender);
/**
* @dev Indicates a failure with the token `receiver`. Used in transfers.
* @param receiver Address to which tokens are being transferred.
*/
error ERC20InvalidReceiver(address receiver);
/**
* @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
* @param spender Address that may be allowed to operate on tokens without being their owner.
* @param allowance Amount of tokens a `spender` is allowed to operate with.
* @param needed Minimum amount required to perform a transfer.
*/
error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);
/**
* @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
* @param approver Address initiating an approval operation.
*/
error ERC20InvalidApprover(address approver);
/**
* @dev Indicates a failure with the `spender` to be approved. Used in approvals.
* @param spender Address that may be allowed to operate on tokens without being their owner.
*/
error ERC20InvalidSpender(address spender);
}
/**
* @dev Standard ERC-721 Errors
* Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-721 tokens.
*/
interface IERC721Errors {
/**
* @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in ERC-20.
* Used in balance queries.
* @param owner Address of the current owner of a token.
*/
error ERC721InvalidOwner(address owner);
/**
* @dev Indicates a `tokenId` whose `owner` is the zero address.
* @param tokenId Identifier number of a token.
*/
error ERC721NonexistentToken(uint256 tokenId);
/**
* @dev Indicates an error related to the ownership over a particular token. Used in transfers.
* @param sender Address whose tokens are being transferred.
* @param tokenId Identifier number of a token.
* @param owner Address of the current owner of a token.
*/
error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);
/**
* @dev Indicates a failure with the token `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
*/
error ERC721InvalidSender(address sender);
/**
* @dev Indicates a failure with the token `receiver`. Used in transfers.
* @param receiver Address to which tokens are being transferred.
*/
error ERC721InvalidReceiver(address receiver);
/**
* @dev Indicates a failure with the `operator`’s approval. Used in transfers.
* @param operator Address that may be allowed to operate on tokens without being their owner.
* @param tokenId Identifier number of a token.
*/
error ERC721InsufficientApproval(address operator, uint256 tokenId);
/**
* @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
* @param approver Address initiating an approval operation.
*/
error ERC721InvalidApprover(address approver);
/**
* @dev Indicates a failure with the `operator` to be approved. Used in approvals.
* @param operator Address that may be allowed to operate on tokens without being their owner.
*/
error ERC721InvalidOperator(address operator);
}
/**
* @dev Standard ERC-1155 Errors
* Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-1155 tokens.
*/
interface IERC1155Errors {
/**
* @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
* @param balance Current balance for the interacting account.
* @param needed Minimum amount required to perform a transfer.
* @param tokenId Identifier number of a token.
*/
error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);
/**
* @dev Indicates a failure with the token `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
*/
error ERC1155InvalidSender(address sender);
/**
* @dev Indicates a failure with the token `receiver`. Used in transfers.
* @param receiver Address to which tokens are being transferred.
*/
error ERC1155InvalidReceiver(address receiver);
/**
* @dev Indicates a failure with the `operator`’s approval. Used in transfers.
* @param operator Address that may be allowed to operate on tokens without being their owner.
* @param owner Address of the current owner of a token.
*/
error ERC1155MissingApprovalForAll(address operator, address owner);
/**
* @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
* @param approver Address initiating an approval operation.
*/
error ERC1155InvalidApprover(address approver);
/**
* @dev Indicates a failure with the `operator` to be approved. Used in approvals.
* @param operator Address that may be allowed to operate on tokens without being their owner.
*/
error ERC1155InvalidOperator(address operator);
/**
* @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
* Used in batch transfers.
* @param idsLength Length of the array of token identifiers
* @param valuesLength Length of the array of token amounts
*/
error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (utils/introspection/ERC165.sol)
pragma solidity ^0.8.20;
import {IERC165} from "./IERC165.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC-165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*/
abstract contract ERC165 is IERC165 {
/// @inheritdoc IERC165
function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)
pragma solidity ^0.8.20;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
function _contextSuffixLength() internal view virtual returns (uint256) {
return 0;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC721/utils/ERC721Utils.sol)
pragma solidity ^0.8.20;
import {IERC721Receiver} from "../IERC721Receiver.sol";
import {IERC721Errors} from "../../../interfaces/draft-IERC6093.sol";
/**
* @dev Library that provide common ERC-721 utility functions.
*
* See https://eips.ethereum.org/EIPS/eip-721[ERC-721].
*
* _Available since v5.1._
*/
library ERC721Utils {
/**
* @dev Performs an acceptance check for the provided `operator` by calling {IERC721Receiver-onERC721Received}
* on the `to` address. The `operator` is generally the address that initiated the token transfer (i.e. `msg.sender`).
*
* The acceptance call is not executed and treated as a no-op if the target address doesn't contain code (i.e. an EOA).
* Otherwise, the recipient must implement {IERC721Receiver-onERC721Received} and return the acceptance magic value to accept
* the transfer.
*/
function checkOnERC721Received(
address operator,
address from,
address to,
uint256 tokenId,
bytes memory data
) internal {
if (to.code.length > 0) {
try IERC721Receiver(to).onERC721Received(operator, from, tokenId, data) returns (bytes4 retval) {
if (retval != IERC721Receiver.onERC721Received.selector) {
// Token rejected
revert IERC721Errors.ERC721InvalidReceiver(to);
}
} catch (bytes memory reason) {
if (reason.length == 0) {
// non-IERC721Receiver implementer
revert IERC721Errors.ERC721InvalidReceiver(to);
} else {
assembly ("memory-safe") {
revert(add(reason, 0x20), mload(reason))
}
}
}
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC721/extensions/IERC721Metadata.sol)
pragma solidity >=0.6.2;
import {IERC721} from "../IERC721.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721Metadata is IERC721 {
/**
* @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);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC721/IERC721.sol)
pragma solidity >=0.6.2;
import {IERC165} from "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC-721 compliant contract.
*/
interface IERC721 is IERC165 {
/**
* @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`.
*
* 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 approved 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 Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC-721 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 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) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC-721
* or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
* understand this adds an external call which potentially creates a reentrancy vulnerability.
*
* 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 address zero.
*
* 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);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/Panic.sol)
pragma solidity ^0.8.20;
/**
* @dev Helper library for emitting standardized panic codes.
*
* ```solidity
* contract Example {
* using Panic for uint256;
*
* // Use any of the declared internal constants
* function foo() { Panic.GENERIC.panic(); }
*
* // Alternatively
* function foo() { Panic.panic(Panic.GENERIC); }
* }
* ```
*
* Follows the list from https://github.com/ethereum/solidity/blob/v0.8.24/libsolutil/ErrorCodes.h[libsolutil].
*
* _Available since v5.1._
*/
// slither-disable-next-line unused-state
library Panic {
/// @dev generic / unspecified error
uint256 internal constant GENERIC = 0x00;
/// @dev used by the assert() builtin
uint256 internal constant ASSERT = 0x01;
/// @dev arithmetic underflow or overflow
uint256 internal constant UNDER_OVERFLOW = 0x11;
/// @dev division or modulo by zero
uint256 internal constant DIVISION_BY_ZERO = 0x12;
/// @dev enum conversion error
uint256 internal constant ENUM_CONVERSION_ERROR = 0x21;
/// @dev invalid encoding in storage
uint256 internal constant STORAGE_ENCODING_ERROR = 0x22;
/// @dev empty array pop
uint256 internal constant EMPTY_ARRAY_POP = 0x31;
/// @dev array out of bounds access
uint256 internal constant ARRAY_OUT_OF_BOUNDS = 0x32;
/// @dev resource error (too large allocation or too large array)
uint256 internal constant RESOURCE_ERROR = 0x41;
/// @dev calling invalid internal function
uint256 internal constant INVALID_INTERNAL_FUNCTION = 0x51;
/// @dev Reverts with a panic code. Recommended to use with
/// the internal constants with predefined codes.
function panic(uint256 code) internal pure {
assembly ("memory-safe") {
mstore(0x00, 0x4e487b71)
mstore(0x20, code)
revert(0x1c, 0x24)
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (utils/introspection/IERC165.sol)
pragma solidity >=0.4.16;
/**
* @dev Interface of the ERC-165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[ERC].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[ERC 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
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC721/IERC721Receiver.sol)
pragma solidity >=0.5.0;
/**
* @title ERC-721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC-721 asset contracts.
*/
interface IERC721Receiver {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be
* reverted.
*
* The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}{
"optimizer": {
"enabled": false,
"runs": 200
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"remappings": []
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AlreadyLocked","type":"error"},{"inputs":[],"name":"AlreadyMintedToAddress","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"address","name":"owner","type":"address"}],"name":"ERC721IncorrectOwner","type":"error"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ERC721InsufficientApproval","type":"error"},{"inputs":[{"internalType":"address","name":"approver","type":"address"}],"name":"ERC721InvalidApprover","type":"error"},{"inputs":[{"internalType":"address","name":"operator","type":"address"}],"name":"ERC721InvalidOperator","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"ERC721InvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"}],"name":"ERC721InvalidReceiver","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"}],"name":"ERC721InvalidSender","type":"error"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ERC721NonexistentToken","type":"error"},{"inputs":[],"name":"NonexistentToken","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"inputs":[],"name":"TokenAlreadyMinted","type":"error"},{"inputs":[],"name":"TokenDataLocked","type":"error"},{"inputs":[],"name":"TokenDataNotSet","type":"error"},{"inputs":[],"name":"WriteError","type":"error"},{"inputs":[],"name":"ZeroChunkPointer","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"data","type":"string"}],"name":"createChunk","outputs":[{"internalType":"address","name":"pointer","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"debugBuildDataUri","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"debugReadAllChunks","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"pointer","type":"address"}],"name":"debugReadChunk","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getTokenChunks","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getTokenInfo","outputs":[{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"description_","type":"string"},{"internalType":"string","name":"mediaType_","type":"string"},{"internalType":"string","name":"wolfSheepIndex_","type":"string"},{"internalType":"bool","name":"isLocked_","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"isTokenDataLocked","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"lockTokenData","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerMint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"description_","type":"string"},{"internalType":"string","name":"mediaType_","type":"string"},{"internalType":"string","name":"wolfSheepIndex_","type":"string"},{"internalType":"address[]","name":"chunkPointers","type":"address[]"}],"name":"setTokenData","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]Contract Creation Code
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
Deployed Bytecode
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
Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000010576f6c76657320616e642053686565700000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000045753544400000000000000000000000000000000000000000000000000000000
-----Decoded View---------------
Arg [0] : name_ (string): Wolves and Sheep
Arg [1] : symbol_ (string): WSTD
-----Encoded View---------------
6 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000040
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000010
Arg [3] : 576f6c76657320616e6420536865657000000000000000000000000000000000
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [5] : 5753544400000000000000000000000000000000000000000000000000000000
Loading...
Loading
Loading...
Loading
Net Worth in USD
$0.00
Net Worth in ETH
0
Multichain Portfolio | 34 Chains
| Chain | Token | Portfolio % | Price | Amount | Value |
|---|
Loading...
Loading
Loading...
Loading
Loading...
Loading
[ Download: CSV Export ]
[ Download: CSV Export ]
A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.