ERC-721
Overview
Max Total Supply
0 q00tants
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5
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N/A
Min Price (24H)
N/A
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N/A
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Token Contract
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Contract Source Code Verified (Exact Match)
Contract Name:
Q00tantShadow
Compiler Version
v0.8.28+commit.7893614a
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT
pragma solidity 0.8.28;
import {NFTShadow} from "../NFTShadow.sol";
/**
* @title Q00tantShadow
*/
contract Q00tantShadow is NFTShadow {
constructor() NFTShadow(0x000000000000F87b8230c9233b00474eda1E1b3b) {
initialize(
0xe880c31C8118103aB49B604E281283E489a69780,
"Q00tants",
"q00tants",
"",
0x7Df5c32827f0Fa448392Ce58231Ce4f378ce56e5,
address(0),
0
);
}
}// SPDX-License-Identifier: MIT
pragma solidity 0.8.28;
import {ERC721} from "solady/tokens/ERC721.sol";
import {LibString} from "solady/utils/LibString.sol";
import {OwnableRoles} from "solady/auth/OwnableRoles.sol";
import {ERC2981} from "solady/tokens/ERC2981.sol";
import {IERC5192} from "./interfaces/IERC5192.sol";
import {IBeacon} from "./interfaces/IBeacon.sol";
import {ICreatorToken} from "./interfaces/ICreatorToken.sol";
import {ITransferValidator} from "./interfaces/ITransferValidator.sol";
import {IShadowCallbackReceiver} from "./interfaces/IShadowCallbackReceiver.sol";
/**
* @title NFTShadow
* @author @0xQuit
* @notice A contract for soulbound Shadow NFTs that follow ownership on a remote chain.
* @notice This contract is designed to be used with a Beacon contract (see IBeacon.sol) to maintain ownership records
* through LayerZero's lzRead protocol.
* @notice Soulbound tokens can be unlocked by locking them on their source chain.
* @notice Contracts have shadow mode disabled by default. In this state, they function very much like a typical oNFT. They
* can be minted by locking the native asset, and the native asset can be unlocked by burning the Shadow NFT.
* @notice When tokens are locked, ONLY the Beacon contract can transfer them. They will follow the canonical owner,
* as resolved by the ExclusiveDelegateResolver (the "Resolver") contract. Users should only issue Resolver compatible
* delegations for assets if they own the delegatee. Though the delegatee can not claim ownership of the underlying asset,
* they may be able to claim airdrops, participate in activations, or otherwise interact with the asset using the Shadow NFT.
*/
contract NFTShadow is ERC721, ERC2981, IERC5192, ICreatorToken, OwnableRoles {
// Only the Beacon contract can perform admin actions when a token is in Shadow mode
error CallerNotBeacon();
// ERC-4906 BatchMetadataUpdate event
event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId);
// The token is currently in Shadow mode
error TokenLocked();
// The token is not in Shadow mode
error TokenNotLocked();
// The function selector is not recognized
error FnSelectorNotRecognized();
// Emitted when a new metadata renderer is set
event MetadataRendererSet(address indexed metadataRenderer);
// Emitted when shadow mode is enabled
event ShadowModeEnabled();
// The address of the Beacon contract
address public immutable BEACON_CONTRACT_ADDRESS;
// Admin management roles
uint256 public constant SHADOW_MODE_MANAGER_ROLE = _ROLE_13;
uint256 public constant METADATA_MANAGER_ROLE = _ROLE_42;
uint256 public constant TRANSFER_VALIDATOR_MANAGER_ROLE = _ROLE_69;
uint256 public constant ROYALTY_MANAGER_ROLE = _ROLE_88;
// The address of the ERC721C transfer validator, address(0) for none
address public transferValidator;
// Mapping to store callback target for each GUID
mapping(bytes32 guid => address callbackTarget) public callbacks;
// _extraData flags to indicate if a token is in Shadow mode (locked) or not (unlocked)
uint96 private constant LOCKED = 0;
uint96 private constant UNLOCKED = 1;
// The base URI for the token metadata
string private _baseTokenUri;
// The name of the collection
string private _name;
// The symbol of the collection
string private _symbol;
// The address of the MetadataRenderer contract (address(0) if not set)
address public metadataRenderer;
// If false, the token can only be minted by locking it on the source chain
bool public shadowModeEnabled;
/**
* @param _beaconContract The address of the Beacon contract
*/
constructor(address _beaconContract) {
BEACON_CONTRACT_ADDRESS = _beaconContract;
}
/// @dev Fallback function for calls from Beacon contract.
fallback() external {
_shadowFallback();
}
/**
* @notice Initializes the NFTShadow contract.
* @param _initialOwner The address of the initial owner.
* @param _collectionName The name of the collection.
* @param _collectionSymbol The symbol of the collection.
* @param _baseTokenURI The base URI for the token metadata.
* @param _metadataRenderer The address of the MetadataRenderer contract.
* @param _transferValidator The address of the transfer validator.
* @param _royaltyFeeNumerator The ERC2981 royalty fee numerator.
*/
function initialize(
address _initialOwner,
string memory _collectionName,
string memory _collectionSymbol,
string memory _baseTokenURI, // can be left empty if metadataRenderer is set
address _metadataRenderer, // address(0) if not set
address _transferValidator,
uint96 _royaltyFeeNumerator
) public {
_baseTokenUri = _baseTokenURI;
_name = _collectionName;
_symbol = _collectionSymbol;
metadataRenderer = _metadataRenderer;
_initializeOwner(_initialOwner);
transferValidator = _transferValidator;
_setDefaultRoyalty(_initialOwner, _royaltyFeeNumerator);
}
/**
* @notice Transfers a token from one address to another.
* @param from The address of the sender.
* @param to The address of the recipient.
* @param tokenId The token ID to transfer.
* @dev If the token is locked, only the Beacon contract can transfer it.
* @dev If the token is unlocked, only the owner or approved address can transfer it.
*/
function transferFrom(address from, address to, uint256 tokenId) public payable override {
if (msg.sender == BEACON_CONTRACT_ADDRESS) {
if (_getExtraData(tokenId) == UNLOCKED) revert TokenNotLocked();
_transfer(address(0), from, to, tokenId);
} else {
super.transferFrom(from, to, tokenId);
}
}
/**
* @notice Triggers an ownership update for the tokens.
* @param tokenIds The token IDs to update ownership for.
* @param eids The EIDs to read ownership from. If token is locked on the provided EID, no update will occur.
*/
function read(uint256[] calldata tokenIds, uint32[] calldata eids) public payable returns (bytes32) {
return _read(tokenIds, eids, 0);
}
/**
* @notice Triggers an ownership update with custom options. Helpful if a component of the update or callback is particularly expensive.
* @param tokenIds The token IDs to update ownership for.
* @param eids The EIDs to read ownership from. If token is locked on the provided EID, no update will occur.
* @param callbackGasLimit The gas limit for the callback.
* @return guid The GUID of the callback.
* @dev Any excess fees provided to LayerZero will be returned to the caller. Potential callers are responsible for ensuring
* that they are able to receive native tokens.
*/
function readWithCallback(uint256[] calldata tokenIds, uint32[] calldata eids, uint128 callbackGasLimit)
external
payable
returns (bytes32)
{
bytes32 guid = _read(tokenIds, eids, callbackGasLimit);
callbacks[guid] = msg.sender;
return guid;
}
/**
* @notice Unlocks and sends tokens to the beneficiary on the specified EID.
* @param dstEid The EID to unlock and send the tokens on.
* @param tokenIds The token IDs to unlock and send.
* @param beneficiary The address of the recipient on the target chain.
* @param refundRecipient The address to refund the native fee to.
* @param supplementalGasLimit The gas limit for the callback.
* @dev Must be owner or approved, and the token must be unlocked (not in Shadow mode). Tokens released on the target chain will be locked on this chain.
*/
function send(
uint32 dstEid,
uint256[] calldata tokenIds,
address beneficiary,
address refundRecipient,
uint128 supplementalGasLimit
) external payable {
for (uint256 i = 0; i < tokenIds.length; i++) {
if (!_isApprovedOrOwner(msg.sender, tokenIds[i])) revert NotOwnerNorApproved();
if (_locked(tokenIds[i])) revert TokenLocked();
if (!shadowModeEnabled) {
_burn(tokenIds[i]);
}
_setExtraData(tokenIds[i], LOCKED);
emit Locked(tokenIds[i]);
}
address baseCollectionAddress = IBeacon(BEACON_CONTRACT_ADDRESS).shadowToBase(address(this));
IBeacon(BEACON_CONTRACT_ADDRESS).send{value: msg.value}(
dstEid, baseCollectionAddress, tokenIds, beneficiary, refundRecipient, supplementalGasLimit
);
}
/**
* @notice Enables shadow mode for the token.
* @dev If shadow mode is enabled, shadows can be minted by the Beacon contract.
* @dev Once enabled, shadow mode cannot be disabled.
*/
function enableShadowMode() external onlyRoles(SHADOW_MODE_MANAGER_ROLE) {
shadowModeEnabled = true;
}
/**
* @notice Sets the base URI for the token metadata.
* @param uri The base URI for the token metadata.
* emits BatchMetadataUpdate event
*/
function setTokenURI(string memory uri) external onlyRoles(METADATA_MANAGER_ROLE) {
_baseTokenUri = uri;
emit BatchMetadataUpdate(0, type(uint256).max);
}
/**
* @notice Sets the metadata renderer for the collection.
* @param _metadataRenderer The address of the metadata renderer.
*/
function setMetadataRenderer(address _metadataRenderer) external onlyRoles(METADATA_MANAGER_ROLE) {
metadataRenderer = _metadataRenderer;
emit MetadataRendererSet(_metadataRenderer);
emit BatchMetadataUpdate(0, type(uint256).max);
}
/**
* @notice Sets the transfer validator for the collection.
* @param transferValidator_ The address of the transfer validator.
* @dev address(0) to disable validation.
*/
function setTransferValidator(address transferValidator_) external onlyRoles(TRANSFER_VALIDATOR_MANAGER_ROLE) {
address oldValidator = transferValidator;
transferValidator = transferValidator_;
emit TransferValidatorUpdated(oldValidator, transferValidator_);
}
/**
* @dev Sets the ERC2981 royalty information for the token collection.
* @param receiver The address of the royalty recipient.
* @param feeNumerator The royalty fee numerator.
*/
function setRoyaltyInfo(address receiver, uint96 feeNumerator) external onlyRoles(ROYALTY_MANAGER_ROLE) {
_setDefaultRoyalty(receiver, feeNumerator);
}
/**
* @notice Burns a token.
* @param tokenId The token ID.
* @dev Only the Beacon contract can burn locked tokens, enforced by _beforeTokenTransfer
* @dev If the token is unlocked, the caller must be the owner or approved.
*/
function burn(uint256 tokenId) external {
if (_locked(tokenId)) {
_burn(tokenId);
} else {
_burn(msg.sender, tokenId);
}
}
/**
* @notice Executes a callback for the specified GUID.
* @param guid The GUID of the callback.
*/
function executeCallback(bytes32 guid) external {
if (msg.sender != BEACON_CONTRACT_ADDRESS) revert CallerNotBeacon();
address callbackTarget = callbacks[guid];
if (callbackTarget == address(0)) return;
delete callbacks[guid];
IShadowCallbackReceiver(callbackTarget).executeCallback(guid);
}
/**
* @notice Returns whether the token is locked.
* @param tokenId The token ID.
* @return bool Whether the token is locked.
*/
function locked(uint256 tokenId) external view returns (bool) {
return _locked(tokenId);
}
/**
* @notice Returns whether the contract supports the specified interface.
* @param interfaceId The interface ID.
* @return bool Whether the contract supports the interface.
* @dev ERC721 and ERC2981 are supported.
*/
function supportsInterface(bytes4 interfaceId) public view override(ERC721, ERC2981) returns (bool) {
return interfaceId == type(IERC5192).interfaceId || ERC721.supportsInterface(interfaceId)
|| ERC2981.supportsInterface(interfaceId) || interfaceId == bytes4(0x49064906);
}
/**
* @notice Returns the token URI for the specified token ID.
* @param id The token ID.
* @return The token URI.
* @dev If the metadataRenderer is set, it will be used to render the token URI.
*/
function tokenURI(uint256 id) public view override returns (string memory) {
if (!_exists(id)) revert TokenDoesNotExist();
if (metadataRenderer != address(0)) {
return ERC721(metadataRenderer).tokenURI(id);
}
return LibString.concat(_baseTokenUri, LibString.toString(id));
}
/**
* @notice Returns the name of the collection.
* @return _name the name of the collection.
*/
function name() public view override returns (string memory) {
return _name;
}
/**
* @notice Returns the symbol of the collection.
* @return _symbol the symbol of the collection.
*/
function symbol() public view override returns (string memory) {
return _symbol;
}
/**
* @notice Returns the token IDs of the tokens owned by the specified owner in a range.
* @dev 10k collections should be able to get all their tokens in a single call, larger collections may need pagination.
* @dev Intended for offchain use, do not use onchain.
* @param owner The address of the owner.
* @param start The range start.
* @param stop The range stop.
* @return array of token IDs owned by the specified owner.
*/
function tokensOfOwnerIn(address owner, uint256 start, uint256 stop) external view returns (uint256[] memory) {
return _tokensOfOwnerIn(owner, start, stop);
}
/**
* @notice Returns the ERC721C transfer validator address. address(0) indicates no validator is set.
* @return address The address of the transfer validator.
*/
function getTransferValidator() external view returns (address) {
return transferValidator;
}
/**
* @notice Returns the ERC721C transfer validation function signature and whether it is a view function.
* @return functionSignature The 4 byte function signature.
* @return isViewFunction Bool indicating if the function is a view function.
*/
function getTransferValidationFunction() external pure returns (bytes4 functionSignature, bool isViewFunction) {
functionSignature = 0xcaee23ea;
isViewFunction = true;
}
function _read(uint256[] calldata tokenIds, uint32[] calldata dstEids, uint128 callbackGasLimit)
internal
returns (bytes32)
{
address baseCollectionAddress = IBeacon(BEACON_CONTRACT_ADDRESS).shadowToBase(address(this));
return IBeacon(BEACON_CONTRACT_ADDRESS).read{value: msg.value}(
baseCollectionAddress, tokenIds, dstEids, msg.sender, callbackGasLimit
);
}
/**
* @notice Unlocks the specified token ID.
* @param tokenId The token ID to unlock.
* @param beneficiary The address of the beneficiary of the unlocked token, in case ownership is stale.
* @dev Only the Beacon contract can unlock tokens
*/
function _unlockToken(uint256 tokenId, address beneficiary) internal {
if (_locked(tokenId)) {
address owner = _ownerOf(tokenId);
// mint if there is no previous owner, otherwise transfer
if (owner == address(0)) {
_mint(beneficiary, tokenId);
} else if (beneficiary != owner) {
_transfer(address(0), owner, beneficiary, tokenId);
}
_setExtraData(tokenId, UNLOCKED);
emit Unlocked(tokenId);
} else {
revert TokenNotLocked();
}
}
function _tokensOfOwnerIn(address owner, uint256 start, uint256 stop) internal view returns (uint256[] memory) {
uint256 numberOfTokens = balanceOf(owner);
uint256 tokenIdIdx = 0;
uint256[] memory tokenIds = new uint256[](numberOfTokens);
for (uint256 i = start; i <= stop; i++) {
if (_ownerOf(i) == owner) {
tokenIds[tokenIdIdx] = i;
unchecked {
tokenIdIdx++;
}
if (tokenIdIdx == numberOfTokens) {
return tokenIds;
}
}
}
// in case we did not find all the tokens within this start/stop, we need to resize the array
uint256[] memory result = new uint256[](tokenIdIdx);
for (uint256 i = 0; i < tokenIdIdx; i++) {
result[i] = tokenIds[i];
}
return result;
}
// tokens can only be transferred if they are locked on the source chain
function _beforeTokenTransfer(address from, address to, uint256 tokenId) internal view override {
if (msg.sender != BEACON_CONTRACT_ADDRESS) {
if (_locked(tokenId) || from == address(0)) {
revert CallerNotBeacon();
}
if (transferValidator != address(0)) {
ITransferValidator(transferValidator).validateTransfer(msg.sender, from, to, tokenId);
}
}
}
function _locked(uint256 tokenId) internal view returns (bool) {
return _getExtraData(tokenId) == LOCKED;
}
function _guardInitializeOwner() internal pure override returns (bool) {
return true;
}
function _calldataload(uint256 offset) internal pure returns (uint256 value) {
/// @solidity memory-safe-assembly
assembly {
value := calldataload(offset)
}
}
function _shadowFallback() internal {
uint256 fnSelector = _calldataload(0x00) >> 224;
if (fnSelector == 0x40c10f19) {
// msg.sender is the Beacon contract, enforced by _beforeTokenTransfer
_mint(address(uint160(_calldataload(0x04))), _calldataload(0x24));
} else if (fnSelector == 0x92772833) {
if (msg.sender != BEACON_CONTRACT_ADDRESS) revert CallerNotBeacon();
uint256 tokenIdsLength = _calldataload(0x44);
address beneficiary = address(uint160(_calldataload(0x24)));
for (uint256 i = 0; i < tokenIdsLength; i++) {
_unlockToken(_calldataload(0x64 + i * 32), beneficiary);
}
} else {
revert FnSelectorNotRecognized();
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @notice Simple ERC721 implementation with storage hitchhiking.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/tokens/ERC721.sol)
/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC721.sol)
/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/token/ERC721/ERC721.sol)
///
/// @dev Note:
/// - The ERC721 standard allows for self-approvals.
/// For performance, this implementation WILL NOT revert for such actions.
/// Please add any checks with overrides if desired.
/// - For performance, methods are made payable where permitted by the ERC721 standard.
/// - The `safeTransfer` functions use the identity precompile (0x4)
/// to copy memory internally.
///
/// If you are overriding:
/// - NEVER violate the ERC721 invariant:
/// the balance of an owner MUST always be equal to their number of ownership slots.
/// The transfer functions do not have an underflow guard for user token balances.
/// - Make sure all variables written to storage are properly cleaned
// (e.g. the bool value for `isApprovedForAll` MUST be either 1 or 0 under the hood).
/// - Check that the overridden function is actually used in the function you want to
/// change the behavior of. Much of the code has been manually inlined for performance.
abstract contract ERC721 {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CONSTANTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev An account can hold up to 4294967295 tokens.
uint256 internal constant _MAX_ACCOUNT_BALANCE = 0xffffffff;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CUSTOM ERRORS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Only the token owner or an approved account can manage the token.
error NotOwnerNorApproved();
/// @dev The token does not exist.
error TokenDoesNotExist();
/// @dev The token already exists.
error TokenAlreadyExists();
/// @dev Cannot query the balance for the zero address.
error BalanceQueryForZeroAddress();
/// @dev Cannot mint or transfer to the zero address.
error TransferToZeroAddress();
/// @dev The token must be owned by `from`.
error TransferFromIncorrectOwner();
/// @dev The recipient's balance has overflowed.
error AccountBalanceOverflow();
/// @dev Cannot safely transfer to a contract that does not implement
/// the ERC721Receiver interface.
error TransferToNonERC721ReceiverImplementer();
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* EVENTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Emitted when token `id` is transferred from `from` to `to`.
event Transfer(address indexed from, address indexed to, uint256 indexed id);
/// @dev Emitted when `owner` enables `account` to manage the `id` token.
event Approval(address indexed owner, address indexed account, uint256 indexed id);
/// @dev Emitted when `owner` enables or disables `operator` to manage all of their tokens.
event ApprovalForAll(address indexed owner, address indexed operator, bool isApproved);
/// @dev `keccak256(bytes("Transfer(address,address,uint256)"))`.
uint256 private constant _TRANSFER_EVENT_SIGNATURE =
0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;
/// @dev `keccak256(bytes("Approval(address,address,uint256)"))`.
uint256 private constant _APPROVAL_EVENT_SIGNATURE =
0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925;
/// @dev `keccak256(bytes("ApprovalForAll(address,address,bool)"))`.
uint256 private constant _APPROVAL_FOR_ALL_EVENT_SIGNATURE =
0x17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* STORAGE */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The ownership data slot of `id` is given by:
/// ```
/// mstore(0x00, id)
/// mstore(0x1c, _ERC721_MASTER_SLOT_SEED)
/// let ownershipSlot := add(id, add(id, keccak256(0x00, 0x20)))
/// ```
/// Bits Layout:
/// - [0..159] `addr`
/// - [160..255] `extraData`
///
/// The approved address slot is given by: `add(1, ownershipSlot)`.
///
/// See: https://notes.ethereum.org/%40vbuterin/verkle_tree_eip
///
/// The balance slot of `owner` is given by:
/// ```
/// mstore(0x1c, _ERC721_MASTER_SLOT_SEED)
/// mstore(0x00, owner)
/// let balanceSlot := keccak256(0x0c, 0x1c)
/// ```
/// Bits Layout:
/// - [0..31] `balance`
/// - [32..255] `aux`
///
/// The `operator` approval slot of `owner` is given by:
/// ```
/// mstore(0x1c, or(_ERC721_MASTER_SLOT_SEED, operator))
/// mstore(0x00, owner)
/// let operatorApprovalSlot := keccak256(0x0c, 0x30)
/// ```
uint256 private constant _ERC721_MASTER_SLOT_SEED = 0x7d8825530a5a2e7a << 192;
/// @dev Pre-shifted and pre-masked constant.
uint256 private constant _ERC721_MASTER_SLOT_SEED_MASKED = 0x0a5a2e7a00000000;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* ERC721 METADATA */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the token collection name.
function name() public view virtual returns (string memory);
/// @dev Returns the token collection symbol.
function symbol() public view virtual returns (string memory);
/// @dev Returns the Uniform Resource Identifier (URI) for token `id`.
function tokenURI(uint256 id) public view virtual returns (string memory);
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* ERC721 */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the owner of token `id`.
///
/// Requirements:
/// - Token `id` must exist.
function ownerOf(uint256 id) public view virtual returns (address result) {
result = _ownerOf(id);
/// @solidity memory-safe-assembly
assembly {
if iszero(result) {
mstore(0x00, 0xceea21b6) // `TokenDoesNotExist()`.
revert(0x1c, 0x04)
}
}
}
/// @dev Returns the number of tokens owned by `owner`.
///
/// Requirements:
/// - `owner` must not be the zero address.
function balanceOf(address owner) public view virtual returns (uint256 result) {
/// @solidity memory-safe-assembly
assembly {
// Revert if the `owner` is the zero address.
if iszero(owner) {
mstore(0x00, 0x8f4eb604) // `BalanceQueryForZeroAddress()`.
revert(0x1c, 0x04)
}
mstore(0x1c, _ERC721_MASTER_SLOT_SEED)
mstore(0x00, owner)
result := and(sload(keccak256(0x0c, 0x1c)), _MAX_ACCOUNT_BALANCE)
}
}
/// @dev Returns the account approved to manage token `id`.
///
/// Requirements:
/// - Token `id` must exist.
function getApproved(uint256 id) public view virtual returns (address result) {
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, id)
mstore(0x1c, _ERC721_MASTER_SLOT_SEED)
let ownershipSlot := add(id, add(id, keccak256(0x00, 0x20)))
if iszero(shl(96, sload(ownershipSlot))) {
mstore(0x00, 0xceea21b6) // `TokenDoesNotExist()`.
revert(0x1c, 0x04)
}
result := sload(add(1, ownershipSlot))
}
}
/// @dev Sets `account` as the approved account to manage token `id`.
///
/// Requirements:
/// - Token `id` must exist.
/// - The caller must be the owner of the token,
/// or an approved operator for the token owner.
///
/// Emits an {Approval} event.
function approve(address account, uint256 id) public payable virtual {
_approve(msg.sender, account, id);
}
/// @dev Returns whether `operator` is approved to manage the tokens of `owner`.
function isApprovedForAll(address owner, address operator)
public
view
virtual
returns (bool result)
{
/// @solidity memory-safe-assembly
assembly {
mstore(0x1c, operator)
mstore(0x08, _ERC721_MASTER_SLOT_SEED_MASKED)
mstore(0x00, owner)
result := sload(keccak256(0x0c, 0x30))
}
}
/// @dev Sets whether `operator` is approved to manage the tokens of the caller.
///
/// Emits an {ApprovalForAll} event.
function setApprovalForAll(address operator, bool isApproved) public virtual {
/// @solidity memory-safe-assembly
assembly {
// Convert to 0 or 1.
isApproved := iszero(iszero(isApproved))
// Update the `isApproved` for (`msg.sender`, `operator`).
mstore(0x1c, operator)
mstore(0x08, _ERC721_MASTER_SLOT_SEED_MASKED)
mstore(0x00, caller())
sstore(keccak256(0x0c, 0x30), isApproved)
// Emit the {ApprovalForAll} event.
mstore(0x00, isApproved)
// forgefmt: disable-next-item
log3(0x00, 0x20, _APPROVAL_FOR_ALL_EVENT_SIGNATURE, caller(), shr(96, shl(96, operator)))
}
}
/// @dev Transfers token `id` from `from` to `to`.
///
/// Requirements:
///
/// - Token `id` must exist.
/// - `from` must be the owner of the token.
/// - `to` cannot be the zero address.
/// - The caller must be the owner of the token, or be approved to manage the token.
///
/// Emits a {Transfer} event.
function transferFrom(address from, address to, uint256 id) public payable virtual {
_beforeTokenTransfer(from, to, id);
/// @solidity memory-safe-assembly
assembly {
// Clear the upper 96 bits.
let bitmaskAddress := shr(96, not(0))
from := and(bitmaskAddress, from)
to := and(bitmaskAddress, to)
// Load the ownership data.
mstore(0x00, id)
mstore(0x1c, or(_ERC721_MASTER_SLOT_SEED, caller()))
let ownershipSlot := add(id, add(id, keccak256(0x00, 0x20)))
let ownershipPacked := sload(ownershipSlot)
let owner := and(bitmaskAddress, ownershipPacked)
// Revert if the token does not exist, or if `from` is not the owner.
if iszero(mul(owner, eq(owner, from))) {
// `TokenDoesNotExist()`, `TransferFromIncorrectOwner()`.
mstore(shl(2, iszero(owner)), 0xceea21b6a1148100)
revert(0x1c, 0x04)
}
// Load, check, and update the token approval.
{
mstore(0x00, from)
let approvedAddress := sload(add(1, ownershipSlot))
// Revert if the caller is not the owner, nor approved.
if iszero(or(eq(caller(), from), eq(caller(), approvedAddress))) {
if iszero(sload(keccak256(0x0c, 0x30))) {
mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`.
revert(0x1c, 0x04)
}
}
// Delete the approved address if any.
if approvedAddress { sstore(add(1, ownershipSlot), 0) }
}
// Update with the new owner.
sstore(ownershipSlot, xor(ownershipPacked, xor(from, to)))
// Decrement the balance of `from`.
{
let fromBalanceSlot := keccak256(0x0c, 0x1c)
sstore(fromBalanceSlot, sub(sload(fromBalanceSlot), 1))
}
// Increment the balance of `to`.
{
mstore(0x00, to)
let toBalanceSlot := keccak256(0x0c, 0x1c)
let toBalanceSlotPacked := add(sload(toBalanceSlot), 1)
// Revert if `to` is the zero address, or if the account balance overflows.
if iszero(mul(to, and(toBalanceSlotPacked, _MAX_ACCOUNT_BALANCE))) {
// `TransferToZeroAddress()`, `AccountBalanceOverflow()`.
mstore(shl(2, iszero(to)), 0xea553b3401336cea)
revert(0x1c, 0x04)
}
sstore(toBalanceSlot, toBalanceSlotPacked)
}
// Emit the {Transfer} event.
log4(codesize(), 0x00, _TRANSFER_EVENT_SIGNATURE, from, to, id)
}
_afterTokenTransfer(from, to, id);
}
/// @dev Equivalent to `safeTransferFrom(from, to, id, "")`.
function safeTransferFrom(address from, address to, uint256 id) public payable virtual {
transferFrom(from, to, id);
if (_hasCode(to)) _checkOnERC721Received(from, to, id, "");
}
/// @dev Transfers token `id` from `from` to `to`.
///
/// Requirements:
///
/// - Token `id` must exist.
/// - `from` must be the owner of the token.
/// - `to` cannot be the zero address.
/// - The caller must be the owner of the token, or be approved to manage the token.
/// - 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 id, bytes calldata data)
public
payable
virtual
{
transferFrom(from, to, id);
if (_hasCode(to)) _checkOnERC721Received(from, to, id, data);
}
/// @dev Returns true if this contract implements the interface defined by `interfaceId`.
/// See: https://eips.ethereum.org/EIPS/eip-165
/// This function call must use less than 30000 gas.
function supportsInterface(bytes4 interfaceId) public view virtual returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
let s := shr(224, interfaceId)
// ERC165: 0x01ffc9a7, ERC721: 0x80ac58cd, ERC721Metadata: 0x5b5e139f.
result := or(or(eq(s, 0x01ffc9a7), eq(s, 0x80ac58cd)), eq(s, 0x5b5e139f))
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL QUERY FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns if token `id` exists.
function _exists(uint256 id) internal view virtual returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, id)
mstore(0x1c, _ERC721_MASTER_SLOT_SEED)
result := iszero(iszero(shl(96, sload(add(id, add(id, keccak256(0x00, 0x20)))))))
}
}
/// @dev Returns the owner of token `id`.
/// Returns the zero address instead of reverting if the token does not exist.
function _ownerOf(uint256 id) internal view virtual returns (address result) {
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, id)
mstore(0x1c, _ERC721_MASTER_SLOT_SEED)
result := shr(96, shl(96, sload(add(id, add(id, keccak256(0x00, 0x20))))))
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL DATA HITCHHIKING FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
// For performance, no events are emitted for the hitchhiking setters.
// Please emit your own events if required.
/// @dev Returns the auxiliary data for `owner`.
/// Minting, transferring, burning the tokens of `owner` will not change the auxiliary data.
/// Auxiliary data can be set for any address, even if it does not have any tokens.
function _getAux(address owner) internal view virtual returns (uint224 result) {
/// @solidity memory-safe-assembly
assembly {
mstore(0x1c, _ERC721_MASTER_SLOT_SEED)
mstore(0x00, owner)
result := shr(32, sload(keccak256(0x0c, 0x1c)))
}
}
/// @dev Set the auxiliary data for `owner` to `value`.
/// Minting, transferring, burning the tokens of `owner` will not change the auxiliary data.
/// Auxiliary data can be set for any address, even if it does not have any tokens.
function _setAux(address owner, uint224 value) internal virtual {
/// @solidity memory-safe-assembly
assembly {
mstore(0x1c, _ERC721_MASTER_SLOT_SEED)
mstore(0x00, owner)
let balanceSlot := keccak256(0x0c, 0x1c)
let packed := sload(balanceSlot)
sstore(balanceSlot, xor(packed, shl(32, xor(value, shr(32, packed)))))
}
}
/// @dev Returns the extra data for token `id`.
/// Minting, transferring, burning a token will not change the extra data.
/// The extra data can be set on a non-existent token.
function _getExtraData(uint256 id) internal view virtual returns (uint96 result) {
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, id)
mstore(0x1c, _ERC721_MASTER_SLOT_SEED)
result := shr(160, sload(add(id, add(id, keccak256(0x00, 0x20)))))
}
}
/// @dev Sets the extra data for token `id` to `value`.
/// Minting, transferring, burning a token will not change the extra data.
/// The extra data can be set on a non-existent token.
function _setExtraData(uint256 id, uint96 value) internal virtual {
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, id)
mstore(0x1c, _ERC721_MASTER_SLOT_SEED)
let ownershipSlot := add(id, add(id, keccak256(0x00, 0x20)))
let packed := sload(ownershipSlot)
sstore(ownershipSlot, xor(packed, shl(160, xor(value, shr(160, packed)))))
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL MINT FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Mints token `id` to `to`.
///
/// Requirements:
///
/// - Token `id` must not exist.
/// - `to` cannot be the zero address.
///
/// Emits a {Transfer} event.
function _mint(address to, uint256 id) internal virtual {
_beforeTokenTransfer(address(0), to, id);
/// @solidity memory-safe-assembly
assembly {
// Clear the upper 96 bits.
to := shr(96, shl(96, to))
// Load the ownership data.
mstore(0x00, id)
mstore(0x1c, _ERC721_MASTER_SLOT_SEED)
let ownershipSlot := add(id, add(id, keccak256(0x00, 0x20)))
let ownershipPacked := sload(ownershipSlot)
// Revert if the token already exists.
if shl(96, ownershipPacked) {
mstore(0x00, 0xc991cbb1) // `TokenAlreadyExists()`.
revert(0x1c, 0x04)
}
// Update with the owner.
sstore(ownershipSlot, or(ownershipPacked, to))
// Increment the balance of the owner.
{
mstore(0x00, to)
let balanceSlot := keccak256(0x0c, 0x1c)
let balanceSlotPacked := add(sload(balanceSlot), 1)
// Revert if `to` is the zero address, or if the account balance overflows.
if iszero(mul(to, and(balanceSlotPacked, _MAX_ACCOUNT_BALANCE))) {
// `TransferToZeroAddress()`, `AccountBalanceOverflow()`.
mstore(shl(2, iszero(to)), 0xea553b3401336cea)
revert(0x1c, 0x04)
}
sstore(balanceSlot, balanceSlotPacked)
}
// Emit the {Transfer} event.
log4(codesize(), 0x00, _TRANSFER_EVENT_SIGNATURE, 0, to, id)
}
_afterTokenTransfer(address(0), to, id);
}
/// @dev Mints token `id` to `to`, and updates the extra data for token `id` to `value`.
/// Does NOT check if token `id` already exists (assumes `id` is auto-incrementing).
///
/// Requirements:
///
/// - `to` cannot be the zero address.
///
/// Emits a {Transfer} event.
function _mintAndSetExtraDataUnchecked(address to, uint256 id, uint96 value) internal virtual {
_beforeTokenTransfer(address(0), to, id);
/// @solidity memory-safe-assembly
assembly {
// Clear the upper 96 bits.
to := shr(96, shl(96, to))
// Update with the owner and extra data.
mstore(0x00, id)
mstore(0x1c, _ERC721_MASTER_SLOT_SEED)
sstore(add(id, add(id, keccak256(0x00, 0x20))), or(shl(160, value), to))
// Increment the balance of the owner.
{
mstore(0x00, to)
let balanceSlot := keccak256(0x0c, 0x1c)
let balanceSlotPacked := add(sload(balanceSlot), 1)
// Revert if `to` is the zero address, or if the account balance overflows.
if iszero(mul(to, and(balanceSlotPacked, _MAX_ACCOUNT_BALANCE))) {
// `TransferToZeroAddress()`, `AccountBalanceOverflow()`.
mstore(shl(2, iszero(to)), 0xea553b3401336cea)
revert(0x1c, 0x04)
}
sstore(balanceSlot, balanceSlotPacked)
}
// Emit the {Transfer} event.
log4(codesize(), 0x00, _TRANSFER_EVENT_SIGNATURE, 0, to, id)
}
_afterTokenTransfer(address(0), to, id);
}
/// @dev Equivalent to `_safeMint(to, id, "")`.
function _safeMint(address to, uint256 id) internal virtual {
_safeMint(to, id, "");
}
/// @dev Mints token `id` to `to`.
///
/// Requirements:
///
/// - Token `id` must not exist.
/// - `to` 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 _safeMint(address to, uint256 id, bytes memory data) internal virtual {
_mint(to, id);
if (_hasCode(to)) _checkOnERC721Received(address(0), to, id, data);
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL BURN FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Equivalent to `_burn(address(0), id)`.
function _burn(uint256 id) internal virtual {
_burn(address(0), id);
}
/// @dev Destroys token `id`, using `by`.
///
/// Requirements:
///
/// - Token `id` must exist.
/// - If `by` is not the zero address,
/// it must be the owner of the token, or be approved to manage the token.
///
/// Emits a {Transfer} event.
function _burn(address by, uint256 id) internal virtual {
address owner = ownerOf(id);
_beforeTokenTransfer(owner, address(0), id);
/// @solidity memory-safe-assembly
assembly {
// Clear the upper 96 bits.
by := shr(96, shl(96, by))
// Load the ownership data.
mstore(0x00, id)
mstore(0x1c, or(_ERC721_MASTER_SLOT_SEED, by))
let ownershipSlot := add(id, add(id, keccak256(0x00, 0x20)))
let ownershipPacked := sload(ownershipSlot)
// Reload the owner in case it is changed in `_beforeTokenTransfer`.
owner := shr(96, shl(96, ownershipPacked))
// Revert if the token does not exist.
if iszero(owner) {
mstore(0x00, 0xceea21b6) // `TokenDoesNotExist()`.
revert(0x1c, 0x04)
}
// Load and check the token approval.
{
mstore(0x00, owner)
let approvedAddress := sload(add(1, ownershipSlot))
// If `by` is not the zero address, do the authorization check.
// Revert if the `by` is not the owner, nor approved.
if iszero(or(iszero(by), or(eq(by, owner), eq(by, approvedAddress)))) {
if iszero(sload(keccak256(0x0c, 0x30))) {
mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`.
revert(0x1c, 0x04)
}
}
// Delete the approved address if any.
if approvedAddress { sstore(add(1, ownershipSlot), 0) }
}
// Clear the owner.
sstore(ownershipSlot, xor(ownershipPacked, owner))
// Decrement the balance of `owner`.
{
let balanceSlot := keccak256(0x0c, 0x1c)
sstore(balanceSlot, sub(sload(balanceSlot), 1))
}
// Emit the {Transfer} event.
log4(codesize(), 0x00, _TRANSFER_EVENT_SIGNATURE, owner, 0, id)
}
_afterTokenTransfer(owner, address(0), id);
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL APPROVAL FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns whether `account` is the owner of token `id`, or is approved to manage it.
///
/// Requirements:
/// - Token `id` must exist.
function _isApprovedOrOwner(address account, uint256 id)
internal
view
virtual
returns (bool result)
{
/// @solidity memory-safe-assembly
assembly {
result := 1
// Clear the upper 96 bits.
account := shr(96, shl(96, account))
// Load the ownership data.
mstore(0x00, id)
mstore(0x1c, or(_ERC721_MASTER_SLOT_SEED, account))
let ownershipSlot := add(id, add(id, keccak256(0x00, 0x20)))
let owner := shr(96, shl(96, sload(ownershipSlot)))
// Revert if the token does not exist.
if iszero(owner) {
mstore(0x00, 0xceea21b6) // `TokenDoesNotExist()`.
revert(0x1c, 0x04)
}
// Check if `account` is the `owner`.
if iszero(eq(account, owner)) {
mstore(0x00, owner)
// Check if `account` is approved to manage the token.
if iszero(sload(keccak256(0x0c, 0x30))) {
result := eq(account, sload(add(1, ownershipSlot)))
}
}
}
}
/// @dev Returns the account approved to manage token `id`.
/// Returns the zero address instead of reverting if the token does not exist.
function _getApproved(uint256 id) internal view virtual returns (address result) {
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, id)
mstore(0x1c, _ERC721_MASTER_SLOT_SEED)
result := sload(add(1, add(id, add(id, keccak256(0x00, 0x20)))))
}
}
/// @dev Equivalent to `_approve(address(0), account, id)`.
function _approve(address account, uint256 id) internal virtual {
_approve(address(0), account, id);
}
/// @dev Sets `account` as the approved account to manage token `id`, using `by`.
///
/// Requirements:
/// - Token `id` must exist.
/// - If `by` is not the zero address, `by` must be the owner
/// or an approved operator for the token owner.
///
/// Emits a {Approval} event.
function _approve(address by, address account, uint256 id) internal virtual {
assembly {
// Clear the upper 96 bits.
let bitmaskAddress := shr(96, not(0))
account := and(bitmaskAddress, account)
by := and(bitmaskAddress, by)
// Load the owner of the token.
mstore(0x00, id)
mstore(0x1c, or(_ERC721_MASTER_SLOT_SEED, by))
let ownershipSlot := add(id, add(id, keccak256(0x00, 0x20)))
let owner := and(bitmaskAddress, sload(ownershipSlot))
// Revert if the token does not exist.
if iszero(owner) {
mstore(0x00, 0xceea21b6) // `TokenDoesNotExist()`.
revert(0x1c, 0x04)
}
// If `by` is not the zero address, do the authorization check.
// Revert if `by` is not the owner, nor approved.
if iszero(or(iszero(by), eq(by, owner))) {
mstore(0x00, owner)
if iszero(sload(keccak256(0x0c, 0x30))) {
mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`.
revert(0x1c, 0x04)
}
}
// Sets `account` as the approved account to manage `id`.
sstore(add(1, ownershipSlot), account)
// Emit the {Approval} event.
log4(codesize(), 0x00, _APPROVAL_EVENT_SIGNATURE, owner, account, id)
}
}
/// @dev Approve or remove the `operator` as an operator for `by`,
/// without authorization checks.
///
/// Emits an {ApprovalForAll} event.
function _setApprovalForAll(address by, address operator, bool isApproved) internal virtual {
/// @solidity memory-safe-assembly
assembly {
// Clear the upper 96 bits.
by := shr(96, shl(96, by))
operator := shr(96, shl(96, operator))
// Convert to 0 or 1.
isApproved := iszero(iszero(isApproved))
// Update the `isApproved` for (`by`, `operator`).
mstore(0x1c, or(_ERC721_MASTER_SLOT_SEED, operator))
mstore(0x00, by)
sstore(keccak256(0x0c, 0x30), isApproved)
// Emit the {ApprovalForAll} event.
mstore(0x00, isApproved)
log3(0x00, 0x20, _APPROVAL_FOR_ALL_EVENT_SIGNATURE, by, operator)
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL TRANSFER FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Equivalent to `_transfer(address(0), from, to, id)`.
function _transfer(address from, address to, uint256 id) internal virtual {
_transfer(address(0), from, to, id);
}
/// @dev Transfers token `id` from `from` to `to`.
///
/// Requirements:
///
/// - Token `id` must exist.
/// - `from` must be the owner of the token.
/// - `to` cannot be the zero address.
/// - If `by` is not the zero address,
/// it must be the owner of the token, or be approved to manage the token.
///
/// Emits a {Transfer} event.
function _transfer(address by, address from, address to, uint256 id) internal virtual {
_beforeTokenTransfer(from, to, id);
/// @solidity memory-safe-assembly
assembly {
// Clear the upper 96 bits.
let bitmaskAddress := shr(96, not(0))
from := and(bitmaskAddress, from)
to := and(bitmaskAddress, to)
by := and(bitmaskAddress, by)
// Load the ownership data.
mstore(0x00, id)
mstore(0x1c, or(_ERC721_MASTER_SLOT_SEED, by))
let ownershipSlot := add(id, add(id, keccak256(0x00, 0x20)))
let ownershipPacked := sload(ownershipSlot)
let owner := and(bitmaskAddress, ownershipPacked)
// Revert if the token does not exist, or if `from` is not the owner.
if iszero(mul(owner, eq(owner, from))) {
// `TokenDoesNotExist()`, `TransferFromIncorrectOwner()`.
mstore(shl(2, iszero(owner)), 0xceea21b6a1148100)
revert(0x1c, 0x04)
}
// Load, check, and update the token approval.
{
mstore(0x00, from)
let approvedAddress := sload(add(1, ownershipSlot))
// If `by` is not the zero address, do the authorization check.
// Revert if the `by` is not the owner, nor approved.
if iszero(or(iszero(by), or(eq(by, from), eq(by, approvedAddress)))) {
if iszero(sload(keccak256(0x0c, 0x30))) {
mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`.
revert(0x1c, 0x04)
}
}
// Delete the approved address if any.
if approvedAddress { sstore(add(1, ownershipSlot), 0) }
}
// Update with the new owner.
sstore(ownershipSlot, xor(ownershipPacked, xor(from, to)))
// Decrement the balance of `from`.
{
let fromBalanceSlot := keccak256(0x0c, 0x1c)
sstore(fromBalanceSlot, sub(sload(fromBalanceSlot), 1))
}
// Increment the balance of `to`.
{
mstore(0x00, to)
let toBalanceSlot := keccak256(0x0c, 0x1c)
let toBalanceSlotPacked := add(sload(toBalanceSlot), 1)
// Revert if `to` is the zero address, or if the account balance overflows.
if iszero(mul(to, and(toBalanceSlotPacked, _MAX_ACCOUNT_BALANCE))) {
// `TransferToZeroAddress()`, `AccountBalanceOverflow()`.
mstore(shl(2, iszero(to)), 0xea553b3401336cea)
revert(0x1c, 0x04)
}
sstore(toBalanceSlot, toBalanceSlotPacked)
}
// Emit the {Transfer} event.
log4(codesize(), 0x00, _TRANSFER_EVENT_SIGNATURE, from, to, id)
}
_afterTokenTransfer(from, to, id);
}
/// @dev Equivalent to `_safeTransfer(from, to, id, "")`.
function _safeTransfer(address from, address to, uint256 id) internal virtual {
_safeTransfer(from, to, id, "");
}
/// @dev Transfers token `id` from `from` to `to`.
///
/// Requirements:
///
/// - Token `id` must exist.
/// - `from` must be the owner of the token.
/// - `to` cannot be the zero address.
/// - The caller must be the owner of the token, or be approved to manage the token.
/// - 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 id, bytes memory data)
internal
virtual
{
_transfer(address(0), from, to, id);
if (_hasCode(to)) _checkOnERC721Received(from, to, id, data);
}
/// @dev Equivalent to `_safeTransfer(by, from, to, id, "")`.
function _safeTransfer(address by, address from, address to, uint256 id) internal virtual {
_safeTransfer(by, from, to, id, "");
}
/// @dev Transfers token `id` from `from` to `to`.
///
/// Requirements:
///
/// - Token `id` must exist.
/// - `from` must be the owner of the token.
/// - `to` cannot be the zero address.
/// - If `by` is not the zero address,
/// it must be the owner of the token, or be approved to manage the token.
/// - 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 by, address from, address to, uint256 id, bytes memory data)
internal
virtual
{
_transfer(by, from, to, id);
if (_hasCode(to)) _checkOnERC721Received(from, to, id, data);
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* HOOKS FOR OVERRIDING */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Hook that is called before any token transfers, including minting and burning.
function _beforeTokenTransfer(address from, address to, uint256 id) internal virtual {}
/// @dev Hook that is called after any token transfers, including minting and burning.
function _afterTokenTransfer(address from, address to, uint256 id) internal virtual {}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* PRIVATE HELPERS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns if `a` has bytecode of non-zero length.
function _hasCode(address a) private view returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
result := extcodesize(a) // Can handle dirty upper bits.
}
}
/// @dev Perform a call to invoke {IERC721Receiver-onERC721Received} on `to`.
/// Reverts if the target does not support the function correctly.
function _checkOnERC721Received(address from, address to, uint256 id, bytes memory data)
private
{
/// @solidity memory-safe-assembly
assembly {
// Prepare the calldata.
let m := mload(0x40)
let onERC721ReceivedSelector := 0x150b7a02
mstore(m, onERC721ReceivedSelector)
mstore(add(m, 0x20), caller()) // The `operator`, which is always `msg.sender`.
mstore(add(m, 0x40), shr(96, shl(96, from)))
mstore(add(m, 0x60), id)
mstore(add(m, 0x80), 0x80)
let n := mload(data)
mstore(add(m, 0xa0), n)
if n { pop(staticcall(gas(), 4, add(data, 0x20), n, add(m, 0xc0), n)) }
// Revert if the call reverts.
if iszero(call(gas(), to, 0, add(m, 0x1c), add(n, 0xa4), m, 0x20)) {
if returndatasize() {
// Bubble up the revert if the call reverts.
returndatacopy(m, 0x00, returndatasize())
revert(m, returndatasize())
}
}
// Load the returndata and compare it.
if iszero(eq(mload(m), shl(224, onERC721ReceivedSelector))) {
mstore(0x00, 0xd1a57ed6) // `TransferToNonERC721ReceiverImplementer()`.
revert(0x1c, 0x04)
}
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @notice Library for converting numbers into strings and other string operations.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/LibString.sol)
/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/LibString.sol)
///
/// @dev Note:
/// For performance and bytecode compactness, most of the string operations are restricted to
/// byte strings (7-bit ASCII), except where otherwise specified.
/// Usage of byte string operations on charsets with runes spanning two or more bytes
/// can lead to undefined behavior.
library LibString {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CUSTOM ERRORS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The length of the output is too small to contain all the hex digits.
error HexLengthInsufficient();
/// @dev The length of the string is more than 32 bytes.
error TooBigForSmallString();
/// @dev The input string must be a 7-bit ASCII.
error StringNot7BitASCII();
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CONSTANTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The constant returned when the `search` is not found in the string.
uint256 internal constant NOT_FOUND = type(uint256).max;
/// @dev Lookup for '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'.
uint128 internal constant ALPHANUMERIC_7_BIT_ASCII = 0x7fffffe07fffffe03ff000000000000;
/// @dev Lookup for 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'.
uint128 internal constant LETTERS_7_BIT_ASCII = 0x7fffffe07fffffe0000000000000000;
/// @dev Lookup for 'abcdefghijklmnopqrstuvwxyz'.
uint128 internal constant LOWERCASE_7_BIT_ASCII = 0x7fffffe000000000000000000000000;
/// @dev Lookup for 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.
uint128 internal constant UPPERCASE_7_BIT_ASCII = 0x7fffffe0000000000000000;
/// @dev Lookup for '0123456789'.
uint128 internal constant DIGITS_7_BIT_ASCII = 0x3ff000000000000;
/// @dev Lookup for '0123456789abcdefABCDEF'.
uint128 internal constant HEXDIGITS_7_BIT_ASCII = 0x7e0000007e03ff000000000000;
/// @dev Lookup for '01234567'.
uint128 internal constant OCTDIGITS_7_BIT_ASCII = 0xff000000000000;
/// @dev Lookup for '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~ \t\n\r\x0b\x0c'.
uint128 internal constant PRINTABLE_7_BIT_ASCII = 0x7fffffffffffffffffffffff00003e00;
/// @dev Lookup for '!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~'.
uint128 internal constant PUNCTUATION_7_BIT_ASCII = 0x78000001f8000001fc00fffe00000000;
/// @dev Lookup for ' \t\n\r\x0b\x0c'.
uint128 internal constant WHITESPACE_7_BIT_ASCII = 0x100003e00;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* DECIMAL OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the base 10 decimal representation of `value`.
function toString(uint256 value) internal pure returns (string memory result) {
/// @solidity memory-safe-assembly
assembly {
// The maximum value of a uint256 contains 78 digits (1 byte per digit), but
// we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned.
// We will need 1 word for the trailing zeros padding, 1 word for the length,
// and 3 words for a maximum of 78 digits.
result := add(mload(0x40), 0x80)
mstore(0x40, add(result, 0x20)) // Allocate memory.
mstore(result, 0) // Zeroize the slot after the string.
let end := result // Cache the end of the memory to calculate the length later.
let w := not(0) // Tsk.
// We write the string from rightmost digit to leftmost digit.
// The following is essentially a do-while loop that also handles the zero case.
for { let temp := value } 1 {} {
result := add(result, w) // `sub(result, 1)`.
// Store the character to the pointer.
// The ASCII index of the '0' character is 48.
mstore8(result, add(48, mod(temp, 10)))
temp := div(temp, 10) // Keep dividing `temp` until zero.
if iszero(temp) { break }
}
let n := sub(end, result)
result := sub(result, 0x20) // Move the pointer 32 bytes back to make room for the length.
mstore(result, n) // Store the length.
}
}
/// @dev Returns the base 10 decimal representation of `value`.
function toString(int256 value) internal pure returns (string memory result) {
if (value >= 0) return toString(uint256(value));
unchecked {
result = toString(~uint256(value) + 1);
}
/// @solidity memory-safe-assembly
assembly {
// We still have some spare memory space on the left,
// as we have allocated 3 words (96 bytes) for up to 78 digits.
let n := mload(result) // Load the string length.
mstore(result, 0x2d) // Store the '-' character.
result := sub(result, 1) // Move back the string pointer by a byte.
mstore(result, add(n, 1)) // Update the string length.
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* HEXADECIMAL OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the hexadecimal representation of `value`,
/// left-padded to an input length of `length` bytes.
/// The output is prefixed with "0x" encoded using 2 hexadecimal digits per byte,
/// giving a total length of `length * 2 + 2` bytes.
/// Reverts if `length` is too small for the output to contain all the digits.
function toHexString(uint256 value, uint256 length)
internal
pure
returns (string memory result)
{
result = toHexStringNoPrefix(value, length);
/// @solidity memory-safe-assembly
assembly {
let n := add(mload(result), 2) // Compute the length.
mstore(result, 0x3078) // Store the "0x" prefix.
result := sub(result, 2) // Move the pointer.
mstore(result, n) // Store the length.
}
}
/// @dev Returns the hexadecimal representation of `value`,
/// left-padded to an input length of `length` bytes.
/// The output is not prefixed with "0x" and is encoded using 2 hexadecimal digits per byte,
/// giving a total length of `length * 2` bytes.
/// Reverts if `length` is too small for the output to contain all the digits.
function toHexStringNoPrefix(uint256 value, uint256 length)
internal
pure
returns (string memory result)
{
/// @solidity memory-safe-assembly
assembly {
// We need 0x20 bytes for the trailing zeros padding, `length * 2` bytes
// for the digits, 0x02 bytes for the prefix, and 0x20 bytes for the length.
// We add 0x20 to the total and round down to a multiple of 0x20.
// (0x20 + 0x20 + 0x02 + 0x20) = 0x62.
result := add(mload(0x40), and(add(shl(1, length), 0x42), not(0x1f)))
mstore(0x40, add(result, 0x20)) // Allocate memory.
mstore(result, 0) // Zeroize the slot after the string.
let end := result // Cache the end to calculate the length later.
// Store "0123456789abcdef" in scratch space.
mstore(0x0f, 0x30313233343536373839616263646566)
let start := sub(result, add(length, length))
let w := not(1) // Tsk.
let temp := value
// We write the string from rightmost digit to leftmost digit.
// The following is essentially a do-while loop that also handles the zero case.
for {} 1 {} {
result := add(result, w) // `sub(result, 2)`.
mstore8(add(result, 1), mload(and(temp, 15)))
mstore8(result, mload(and(shr(4, temp), 15)))
temp := shr(8, temp)
if iszero(xor(result, start)) { break }
}
if temp {
mstore(0x00, 0x2194895a) // `HexLengthInsufficient()`.
revert(0x1c, 0x04)
}
let n := sub(end, result)
result := sub(result, 0x20)
mstore(result, n) // Store the length.
}
}
/// @dev Returns the hexadecimal representation of `value`.
/// The output is prefixed with "0x" and encoded using 2 hexadecimal digits per byte.
/// As address are 20 bytes long, the output will left-padded to have
/// a length of `20 * 2 + 2` bytes.
function toHexString(uint256 value) internal pure returns (string memory result) {
result = toHexStringNoPrefix(value);
/// @solidity memory-safe-assembly
assembly {
let n := add(mload(result), 2) // Compute the length.
mstore(result, 0x3078) // Store the "0x" prefix.
result := sub(result, 2) // Move the pointer.
mstore(result, n) // Store the length.
}
}
/// @dev Returns the hexadecimal representation of `value`.
/// The output is prefixed with "0x".
/// The output excludes leading "0" from the `toHexString` output.
/// `0x00: "0x0", 0x01: "0x1", 0x12: "0x12", 0x123: "0x123"`.
function toMinimalHexString(uint256 value) internal pure returns (string memory result) {
result = toHexStringNoPrefix(value);
/// @solidity memory-safe-assembly
assembly {
let o := eq(byte(0, mload(add(result, 0x20))), 0x30) // Whether leading zero is present.
let n := add(mload(result), 2) // Compute the length.
mstore(add(result, o), 0x3078) // Store the "0x" prefix, accounting for leading zero.
result := sub(add(result, o), 2) // Move the pointer, accounting for leading zero.
mstore(result, sub(n, o)) // Store the length, accounting for leading zero.
}
}
/// @dev Returns the hexadecimal representation of `value`.
/// The output excludes leading "0" from the `toHexStringNoPrefix` output.
/// `0x00: "0", 0x01: "1", 0x12: "12", 0x123: "123"`.
function toMinimalHexStringNoPrefix(uint256 value)
internal
pure
returns (string memory result)
{
result = toHexStringNoPrefix(value);
/// @solidity memory-safe-assembly
assembly {
let o := eq(byte(0, mload(add(result, 0x20))), 0x30) // Whether leading zero is present.
let n := mload(result) // Get the length.
result := add(result, o) // Move the pointer, accounting for leading zero.
mstore(result, sub(n, o)) // Store the length, accounting for leading zero.
}
}
/// @dev Returns the hexadecimal representation of `value`.
/// The output is encoded using 2 hexadecimal digits per byte.
/// As address are 20 bytes long, the output will left-padded to have
/// a length of `20 * 2` bytes.
function toHexStringNoPrefix(uint256 value) internal pure returns (string memory result) {
/// @solidity memory-safe-assembly
assembly {
// We need 0x20 bytes for the trailing zeros padding, 0x20 bytes for the length,
// 0x02 bytes for the prefix, and 0x40 bytes for the digits.
// The next multiple of 0x20 above (0x20 + 0x20 + 0x02 + 0x40) is 0xa0.
result := add(mload(0x40), 0x80)
mstore(0x40, add(result, 0x20)) // Allocate memory.
mstore(result, 0) // Zeroize the slot after the string.
let end := result // Cache the end to calculate the length later.
mstore(0x0f, 0x30313233343536373839616263646566) // Store the "0123456789abcdef" lookup.
let w := not(1) // Tsk.
// We write the string from rightmost digit to leftmost digit.
// The following is essentially a do-while loop that also handles the zero case.
for { let temp := value } 1 {} {
result := add(result, w) // `sub(result, 2)`.
mstore8(add(result, 1), mload(and(temp, 15)))
mstore8(result, mload(and(shr(4, temp), 15)))
temp := shr(8, temp)
if iszero(temp) { break }
}
let n := sub(end, result)
result := sub(result, 0x20)
mstore(result, n) // Store the length.
}
}
/// @dev Returns the hexadecimal representation of `value`.
/// The output is prefixed with "0x", encoded using 2 hexadecimal digits per byte,
/// and the alphabets are capitalized conditionally according to
/// https://eips.ethereum.org/EIPS/eip-55
function toHexStringChecksummed(address value) internal pure returns (string memory result) {
result = toHexString(value);
/// @solidity memory-safe-assembly
assembly {
let mask := shl(6, div(not(0), 255)) // `0b010000000100000000 ...`
let o := add(result, 0x22)
let hashed := and(keccak256(o, 40), mul(34, mask)) // `0b10001000 ... `
let t := shl(240, 136) // `0b10001000 << 240`
for { let i := 0 } 1 {} {
mstore(add(i, i), mul(t, byte(i, hashed)))
i := add(i, 1)
if eq(i, 20) { break }
}
mstore(o, xor(mload(o), shr(1, and(mload(0x00), and(mload(o), mask)))))
o := add(o, 0x20)
mstore(o, xor(mload(o), shr(1, and(mload(0x20), and(mload(o), mask)))))
}
}
/// @dev Returns the hexadecimal representation of `value`.
/// The output is prefixed with "0x" and encoded using 2 hexadecimal digits per byte.
function toHexString(address value) internal pure returns (string memory result) {
result = toHexStringNoPrefix(value);
/// @solidity memory-safe-assembly
assembly {
let n := add(mload(result), 2) // Compute the length.
mstore(result, 0x3078) // Store the "0x" prefix.
result := sub(result, 2) // Move the pointer.
mstore(result, n) // Store the length.
}
}
/// @dev Returns the hexadecimal representation of `value`.
/// The output is encoded using 2 hexadecimal digits per byte.
function toHexStringNoPrefix(address value) internal pure returns (string memory result) {
/// @solidity memory-safe-assembly
assembly {
result := mload(0x40)
// Allocate memory.
// We need 0x20 bytes for the trailing zeros padding, 0x20 bytes for the length,
// 0x02 bytes for the prefix, and 0x28 bytes for the digits.
// The next multiple of 0x20 above (0x20 + 0x20 + 0x02 + 0x28) is 0x80.
mstore(0x40, add(result, 0x80))
mstore(0x0f, 0x30313233343536373839616263646566) // Store the "0123456789abcdef" lookup.
result := add(result, 2)
mstore(result, 40) // Store the length.
let o := add(result, 0x20)
mstore(add(o, 40), 0) // Zeroize the slot after the string.
value := shl(96, value)
// We write the string from rightmost digit to leftmost digit.
// The following is essentially a do-while loop that also handles the zero case.
for { let i := 0 } 1 {} {
let p := add(o, add(i, i))
let temp := byte(i, value)
mstore8(add(p, 1), mload(and(temp, 15)))
mstore8(p, mload(shr(4, temp)))
i := add(i, 1)
if eq(i, 20) { break }
}
}
}
/// @dev Returns the hex encoded string from the raw bytes.
/// The output is encoded using 2 hexadecimal digits per byte.
function toHexString(bytes memory raw) internal pure returns (string memory result) {
result = toHexStringNoPrefix(raw);
/// @solidity memory-safe-assembly
assembly {
let n := add(mload(result), 2) // Compute the length.
mstore(result, 0x3078) // Store the "0x" prefix.
result := sub(result, 2) // Move the pointer.
mstore(result, n) // Store the length.
}
}
/// @dev Returns the hex encoded string from the raw bytes.
/// The output is encoded using 2 hexadecimal digits per byte.
function toHexStringNoPrefix(bytes memory raw) internal pure returns (string memory result) {
/// @solidity memory-safe-assembly
assembly {
let n := mload(raw)
result := add(mload(0x40), 2) // Skip 2 bytes for the optional prefix.
mstore(result, add(n, n)) // Store the length of the output.
mstore(0x0f, 0x30313233343536373839616263646566) // Store the "0123456789abcdef" lookup.
let o := add(result, 0x20)
let end := add(raw, n)
for {} iszero(eq(raw, end)) {} {
raw := add(raw, 1)
mstore8(add(o, 1), mload(and(mload(raw), 15)))
mstore8(o, mload(and(shr(4, mload(raw)), 15)))
o := add(o, 2)
}
mstore(o, 0) // Zeroize the slot after the string.
mstore(0x40, add(o, 0x20)) // Allocate memory.
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* RUNE STRING OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the number of UTF characters in the string.
function runeCount(string memory s) internal pure returns (uint256 result) {
/// @solidity memory-safe-assembly
assembly {
if mload(s) {
mstore(0x00, div(not(0), 255))
mstore(0x20, 0x0202020202020202020202020202020202020202020202020303030304040506)
let o := add(s, 0x20)
let end := add(o, mload(s))
for { result := 1 } 1 { result := add(result, 1) } {
o := add(o, byte(0, mload(shr(250, mload(o)))))
if iszero(lt(o, end)) { break }
}
}
}
}
/// @dev Returns if this string is a 7-bit ASCII string.
/// (i.e. all characters codes are in [0..127])
function is7BitASCII(string memory s) internal pure returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
result := 1
let mask := shl(7, div(not(0), 255))
let n := mload(s)
if n {
let o := add(s, 0x20)
let end := add(o, n)
let last := mload(end)
mstore(end, 0)
for {} 1 {} {
if and(mask, mload(o)) {
result := 0
break
}
o := add(o, 0x20)
if iszero(lt(o, end)) { break }
}
mstore(end, last)
}
}
}
/// @dev Returns if this string is a 7-bit ASCII string,
/// AND all characters are in the `allowed` lookup.
/// Note: If `s` is empty, returns true regardless of `allowed`.
function is7BitASCII(string memory s, uint128 allowed) internal pure returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
result := 1
if mload(s) {
let allowed_ := shr(128, shl(128, allowed))
let o := add(s, 0x20)
for { let end := add(o, mload(s)) } 1 {} {
result := and(result, shr(byte(0, mload(o)), allowed_))
o := add(o, 1)
if iszero(and(result, lt(o, end))) { break }
}
}
}
}
/// @dev Converts the bytes in the 7-bit ASCII string `s` to
/// an allowed lookup for use in `is7BitASCII(s, allowed)`.
/// To save runtime gas, you can cache the result in an immutable variable.
function to7BitASCIIAllowedLookup(string memory s) internal pure returns (uint128 result) {
/// @solidity memory-safe-assembly
assembly {
if mload(s) {
let o := add(s, 0x20)
for { let end := add(o, mload(s)) } 1 {} {
result := or(result, shl(byte(0, mload(o)), 1))
o := add(o, 1)
if iszero(lt(o, end)) { break }
}
if shr(128, result) {
mstore(0x00, 0xc9807e0d) // `StringNot7BitASCII()`.
revert(0x1c, 0x04)
}
}
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* BYTE STRING OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
// For performance and bytecode compactness, byte string operations are restricted
// to 7-bit ASCII strings. All offsets are byte offsets, not UTF character offsets.
// Usage of byte string operations on charsets with runes spanning two or more bytes
// can lead to undefined behavior.
/// @dev Returns `subject` all occurrences of `needle` replaced with `replacement`.
function replace(string memory subject, string memory needle, string memory replacement)
internal
pure
returns (string memory result)
{
/// @solidity memory-safe-assembly
assembly {
result := mload(0x40)
let needleLen := mload(needle)
let replacementLen := mload(replacement)
let d := sub(result, subject) // Memory difference.
let i := add(subject, 0x20) // Subject bytes pointer.
let end := add(i, mload(subject))
if iszero(gt(needleLen, mload(subject))) {
let subjectSearchEnd := add(sub(end, needleLen), 1)
let h := 0 // The hash of `needle`.
if iszero(lt(needleLen, 0x20)) { h := keccak256(add(needle, 0x20), needleLen) }
let s := mload(add(needle, 0x20))
for { let m := shl(3, sub(0x20, and(needleLen, 0x1f))) } 1 {} {
let t := mload(i)
// Whether the first `needleLen % 32` bytes of `subject` and `needle` matches.
if iszero(shr(m, xor(t, s))) {
if h {
if iszero(eq(keccak256(i, needleLen), h)) {
mstore(add(i, d), t)
i := add(i, 1)
if iszero(lt(i, subjectSearchEnd)) { break }
continue
}
}
// Copy the `replacement` one word at a time.
for { let j := 0 } 1 {} {
mstore(add(add(i, d), j), mload(add(add(replacement, 0x20), j)))
j := add(j, 0x20)
if iszero(lt(j, replacementLen)) { break }
}
d := sub(add(d, replacementLen), needleLen)
if needleLen {
i := add(i, needleLen)
if iszero(lt(i, subjectSearchEnd)) { break }
continue
}
}
mstore(add(i, d), t)
i := add(i, 1)
if iszero(lt(i, subjectSearchEnd)) { break }
}
}
let n := add(sub(d, add(result, 0x20)), end)
// Copy the rest of the string one word at a time.
for {} lt(i, end) { i := add(i, 0x20) } { mstore(add(i, d), mload(i)) }
let o := add(i, d)
mstore(o, 0) // Zeroize the slot after the string.
mstore(0x40, add(o, 0x20)) // Allocate memory.
mstore(result, n) // Store the length.
}
}
/// @dev Returns the byte index of the first location of `needle` in `subject`,
/// needleing from left to right, starting from `from`.
/// Returns `NOT_FOUND` (i.e. `type(uint256).max`) if the `needle` is not found.
function indexOf(string memory subject, string memory needle, uint256 from)
internal
pure
returns (uint256 result)
{
/// @solidity memory-safe-assembly
assembly {
result := not(0) // Initialize to `NOT_FOUND`.
for { let subjectLen := mload(subject) } 1 {} {
if iszero(mload(needle)) {
result := from
if iszero(gt(from, subjectLen)) { break }
result := subjectLen
break
}
let needleLen := mload(needle)
let subjectStart := add(subject, 0x20)
subject := add(subjectStart, from)
let end := add(sub(add(subjectStart, subjectLen), needleLen), 1)
let m := shl(3, sub(0x20, and(needleLen, 0x1f)))
let s := mload(add(needle, 0x20))
if iszero(and(lt(subject, end), lt(from, subjectLen))) { break }
if iszero(lt(needleLen, 0x20)) {
for { let h := keccak256(add(needle, 0x20), needleLen) } 1 {} {
if iszero(shr(m, xor(mload(subject), s))) {
if eq(keccak256(subject, needleLen), h) {
result := sub(subject, subjectStart)
break
}
}
subject := add(subject, 1)
if iszero(lt(subject, end)) { break }
}
break
}
for {} 1 {} {
if iszero(shr(m, xor(mload(subject), s))) {
result := sub(subject, subjectStart)
break
}
subject := add(subject, 1)
if iszero(lt(subject, end)) { break }
}
break
}
}
}
/// @dev Returns the byte index of the first location of `needle` in `subject`,
/// needleing from left to right.
/// Returns `NOT_FOUND` (i.e. `type(uint256).max`) if the `needle` is not found.
function indexOf(string memory subject, string memory needle)
internal
pure
returns (uint256 result)
{
result = indexOf(subject, needle, 0);
}
/// @dev Returns the byte index of the first location of `needle` in `subject`,
/// needleing from right to left, starting from `from`.
/// Returns `NOT_FOUND` (i.e. `type(uint256).max`) if the `needle` is not found.
function lastIndexOf(string memory subject, string memory needle, uint256 from)
internal
pure
returns (uint256 result)
{
/// @solidity memory-safe-assembly
assembly {
for {} 1 {} {
result := not(0) // Initialize to `NOT_FOUND`.
let needleLen := mload(needle)
if gt(needleLen, mload(subject)) { break }
let w := result
let fromMax := sub(mload(subject), needleLen)
if iszero(gt(fromMax, from)) { from := fromMax }
let end := add(add(subject, 0x20), w)
subject := add(add(subject, 0x20), from)
if iszero(gt(subject, end)) { break }
// As this function is not too often used,
// we shall simply use keccak256 for smaller bytecode size.
for { let h := keccak256(add(needle, 0x20), needleLen) } 1 {} {
if eq(keccak256(subject, needleLen), h) {
result := sub(subject, add(end, 1))
break
}
subject := add(subject, w) // `sub(subject, 1)`.
if iszero(gt(subject, end)) { break }
}
break
}
}
}
/// @dev Returns the byte index of the first location of `needle` in `subject`,
/// needleing from right to left.
/// Returns `NOT_FOUND` (i.e. `type(uint256).max`) if the `needle` is not found.
function lastIndexOf(string memory subject, string memory needle)
internal
pure
returns (uint256 result)
{
result = lastIndexOf(subject, needle, type(uint256).max);
}
/// @dev Returns true if `needle` is found in `subject`, false otherwise.
function contains(string memory subject, string memory needle) internal pure returns (bool) {
return indexOf(subject, needle) != NOT_FOUND;
}
/// @dev Returns whether `subject` starts with `needle`.
function startsWith(string memory subject, string memory needle)
internal
pure
returns (bool result)
{
/// @solidity memory-safe-assembly
assembly {
let needleLen := mload(needle)
// Just using keccak256 directly is actually cheaper.
// forgefmt: disable-next-item
result := and(
iszero(gt(needleLen, mload(subject))),
eq(
keccak256(add(subject, 0x20), needleLen),
keccak256(add(needle, 0x20), needleLen)
)
)
}
}
/// @dev Returns whether `subject` ends with `needle`.
function endsWith(string memory subject, string memory needle)
internal
pure
returns (bool result)
{
/// @solidity memory-safe-assembly
assembly {
let needleLen := mload(needle)
// Whether `needle` is not longer than `subject`.
let inRange := iszero(gt(needleLen, mload(subject)))
// Just using keccak256 directly is actually cheaper.
// forgefmt: disable-next-item
result := and(
eq(
keccak256(
// `subject + 0x20 + max(subjectLen - needleLen, 0)`.
add(add(subject, 0x20), mul(inRange, sub(mload(subject), needleLen))),
needleLen
),
keccak256(add(needle, 0x20), needleLen)
),
inRange
)
}
}
/// @dev Returns `subject` repeated `times`.
function repeat(string memory subject, uint256 times)
internal
pure
returns (string memory result)
{
/// @solidity memory-safe-assembly
assembly {
let subjectLen := mload(subject)
if iszero(or(iszero(times), iszero(subjectLen))) {
result := mload(0x40)
subject := add(subject, 0x20)
let o := add(result, 0x20)
for {} 1 {} {
// Copy the `subject` one word at a time.
for { let j := 0 } 1 {} {
mstore(add(o, j), mload(add(subject, j)))
j := add(j, 0x20)
if iszero(lt(j, subjectLen)) { break }
}
o := add(o, subjectLen)
times := sub(times, 1)
if iszero(times) { break }
}
mstore(o, 0) // Zeroize the slot after the string.
mstore(0x40, add(o, 0x20)) // Allocate memory.
mstore(result, sub(o, add(result, 0x20))) // Store the length.
}
}
}
/// @dev Returns a copy of `subject` sliced from `start` to `end` (exclusive).
/// `start` and `end` are byte offsets.
function slice(string memory subject, uint256 start, uint256 end)
internal
pure
returns (string memory result)
{
/// @solidity memory-safe-assembly
assembly {
let subjectLen := mload(subject)
if iszero(gt(subjectLen, end)) { end := subjectLen }
if iszero(gt(subjectLen, start)) { start := subjectLen }
if lt(start, end) {
result := mload(0x40)
let n := sub(end, start)
let i := add(subject, start)
let w := not(0x1f)
// Copy the `subject` one word at a time, backwards.
for { let j := and(add(n, 0x1f), w) } 1 {} {
mstore(add(result, j), mload(add(i, j)))
j := add(j, w) // `sub(j, 0x20)`.
if iszero(j) { break }
}
let o := add(add(result, 0x20), n)
mstore(o, 0) // Zeroize the slot after the string.
mstore(0x40, add(o, 0x20)) // Allocate memory.
mstore(result, n) // Store the length.
}
}
}
/// @dev Returns a copy of `subject` sliced from `start` to the end of the string.
/// `start` is a byte offset.
function slice(string memory subject, uint256 start)
internal
pure
returns (string memory result)
{
result = slice(subject, start, type(uint256).max);
}
/// @dev Returns all the indices of `needle` in `subject`.
/// The indices are byte offsets.
function indicesOf(string memory subject, string memory needle)
internal
pure
returns (uint256[] memory result)
{
/// @solidity memory-safe-assembly
assembly {
let searchLen := mload(needle)
if iszero(gt(searchLen, mload(subject))) {
result := mload(0x40)
let i := add(subject, 0x20)
let o := add(result, 0x20)
let subjectSearchEnd := add(sub(add(i, mload(subject)), searchLen), 1)
let h := 0 // The hash of `needle`.
if iszero(lt(searchLen, 0x20)) { h := keccak256(add(needle, 0x20), searchLen) }
let s := mload(add(needle, 0x20))
for { let m := shl(3, sub(0x20, and(searchLen, 0x1f))) } 1 {} {
let t := mload(i)
// Whether the first `searchLen % 32` bytes of `subject` and `needle` matches.
if iszero(shr(m, xor(t, s))) {
if h {
if iszero(eq(keccak256(i, searchLen), h)) {
i := add(i, 1)
if iszero(lt(i, subjectSearchEnd)) { break }
continue
}
}
mstore(o, sub(i, add(subject, 0x20))) // Append to `result`.
o := add(o, 0x20)
i := add(i, searchLen) // Advance `i` by `searchLen`.
if searchLen {
if iszero(lt(i, subjectSearchEnd)) { break }
continue
}
}
i := add(i, 1)
if iszero(lt(i, subjectSearchEnd)) { break }
}
mstore(result, shr(5, sub(o, add(result, 0x20)))) // Store the length of `result`.
// Allocate memory for result.
// We allocate one more word, so this array can be recycled for {split}.
mstore(0x40, add(o, 0x20))
}
}
}
/// @dev Returns a arrays of strings based on the `delimiter` inside of the `subject` string.
function split(string memory subject, string memory delimiter)
internal
pure
returns (string[] memory result)
{
uint256[] memory indices = indicesOf(subject, delimiter);
/// @solidity memory-safe-assembly
assembly {
let w := not(0x1f)
let indexPtr := add(indices, 0x20)
let indicesEnd := add(indexPtr, shl(5, add(mload(indices), 1)))
mstore(add(indicesEnd, w), mload(subject))
mstore(indices, add(mload(indices), 1))
for { let prevIndex := 0 } 1 {} {
let index := mload(indexPtr)
mstore(indexPtr, 0x60)
if iszero(eq(index, prevIndex)) {
let element := mload(0x40)
let l := sub(index, prevIndex)
mstore(element, l) // Store the length of the element.
// Copy the `subject` one word at a time, backwards.
for { let o := and(add(l, 0x1f), w) } 1 {} {
mstore(add(element, o), mload(add(add(subject, prevIndex), o)))
o := add(o, w) // `sub(o, 0x20)`.
if iszero(o) { break }
}
mstore(add(add(element, 0x20), l), 0) // Zeroize the slot after the string.
// Allocate memory for the length and the bytes, rounded up to a multiple of 32.
mstore(0x40, add(element, and(add(l, 0x3f), w)))
mstore(indexPtr, element) // Store the `element` into the array.
}
prevIndex := add(index, mload(delimiter))
indexPtr := add(indexPtr, 0x20)
if iszero(lt(indexPtr, indicesEnd)) { break }
}
result := indices
if iszero(mload(delimiter)) {
result := add(indices, 0x20)
mstore(result, sub(mload(indices), 2))
}
}
}
/// @dev Returns a concatenated string of `a` and `b`.
/// Cheaper than `string.concat()` and does not de-align the free memory pointer.
function concat(string memory a, string memory b)
internal
pure
returns (string memory result)
{
/// @solidity memory-safe-assembly
assembly {
result := mload(0x40)
let w := not(0x1f)
let aLen := mload(a)
// Copy `a` one word at a time, backwards.
for { let o := and(add(aLen, 0x20), w) } 1 {} {
mstore(add(result, o), mload(add(a, o)))
o := add(o, w) // `sub(o, 0x20)`.
if iszero(o) { break }
}
let bLen := mload(b)
let output := add(result, aLen)
// Copy `b` one word at a time, backwards.
for { let o := and(add(bLen, 0x20), w) } 1 {} {
mstore(add(output, o), mload(add(b, o)))
o := add(o, w) // `sub(o, 0x20)`.
if iszero(o) { break }
}
let totalLen := add(aLen, bLen)
let last := add(add(result, 0x20), totalLen)
mstore(last, 0) // Zeroize the slot after the string.
mstore(result, totalLen) // Store the length.
mstore(0x40, add(last, 0x20)) // Allocate memory.
}
}
/// @dev Returns a copy of the string in either lowercase or UPPERCASE.
/// WARNING! This function is only compatible with 7-bit ASCII strings.
function toCase(string memory subject, bool toUpper)
internal
pure
returns (string memory result)
{
/// @solidity memory-safe-assembly
assembly {
let n := mload(subject)
if n {
result := mload(0x40)
let o := add(result, 0x20)
let d := sub(subject, result)
let flags := shl(add(70, shl(5, toUpper)), 0x3ffffff)
for { let end := add(o, n) } 1 {} {
let b := byte(0, mload(add(d, o)))
mstore8(o, xor(and(shr(b, flags), 0x20), b))
o := add(o, 1)
if eq(o, end) { break }
}
mstore(result, n) // Store the length.
mstore(o, 0) // Zeroize the slot after the string.
mstore(0x40, add(o, 0x20)) // Allocate memory.
}
}
}
/// @dev Returns a string from a small bytes32 string.
/// `s` must be null-terminated, or behavior will be undefined.
function fromSmallString(bytes32 s) internal pure returns (string memory result) {
/// @solidity memory-safe-assembly
assembly {
result := mload(0x40)
let n := 0
for {} byte(n, s) { n := add(n, 1) } {} // Scan for '\0'.
mstore(result, n) // Store the length.
let o := add(result, 0x20)
mstore(o, s) // Store the bytes of the string.
mstore(add(o, n), 0) // Zeroize the slot after the string.
mstore(0x40, add(result, 0x40)) // Allocate memory.
}
}
/// @dev Returns the small string, with all bytes after the first null byte zeroized.
function normalizeSmallString(bytes32 s) internal pure returns (bytes32 result) {
/// @solidity memory-safe-assembly
assembly {
for {} byte(result, s) { result := add(result, 1) } {} // Scan for '\0'.
mstore(0x00, s)
mstore(result, 0x00)
result := mload(0x00)
}
}
/// @dev Returns the string as a normalized null-terminated small string.
function toSmallString(string memory s) internal pure returns (bytes32 result) {
/// @solidity memory-safe-assembly
assembly {
result := mload(s)
if iszero(lt(result, 33)) {
mstore(0x00, 0xec92f9a3) // `TooBigForSmallString()`.
revert(0x1c, 0x04)
}
result := shl(shl(3, sub(32, result)), mload(add(s, result)))
}
}
/// @dev Returns a lowercased copy of the string.
/// WARNING! This function is only compatible with 7-bit ASCII strings.
function lower(string memory subject) internal pure returns (string memory result) {
result = toCase(subject, false);
}
/// @dev Returns an UPPERCASED copy of the string.
/// WARNING! This function is only compatible with 7-bit ASCII strings.
function upper(string memory subject) internal pure returns (string memory result) {
result = toCase(subject, true);
}
/// @dev Escapes the string to be used within HTML tags.
function escapeHTML(string memory s) internal pure returns (string memory result) {
/// @solidity memory-safe-assembly
assembly {
result := mload(0x40)
let end := add(s, mload(s))
let o := add(result, 0x20)
// Store the bytes of the packed offsets and strides into the scratch space.
// `packed = (stride << 5) | offset`. Max offset is 20. Max stride is 6.
mstore(0x1f, 0x900094)
mstore(0x08, 0xc0000000a6ab)
// Store ""&'<>" into the scratch space.
mstore(0x00, shl(64, 0x2671756f743b26616d703b262333393b266c743b2667743b))
for {} iszero(eq(s, end)) {} {
s := add(s, 1)
let c := and(mload(s), 0xff)
// Not in `["\"","'","&","<",">"]`.
if iszero(and(shl(c, 1), 0x500000c400000000)) {
mstore8(o, c)
o := add(o, 1)
continue
}
let t := shr(248, mload(c))
mstore(o, mload(and(t, 0x1f)))
o := add(o, shr(5, t))
}
mstore(o, 0) // Zeroize the slot after the string.
mstore(result, sub(o, add(result, 0x20))) // Store the length.
mstore(0x40, add(o, 0x20)) // Allocate memory.
}
}
/// @dev Escapes the string to be used within double-quotes in a JSON.
/// If `addDoubleQuotes` is true, the result will be enclosed in double-quotes.
function escapeJSON(string memory s, bool addDoubleQuotes)
internal
pure
returns (string memory result)
{
/// @solidity memory-safe-assembly
assembly {
result := mload(0x40)
let o := add(result, 0x20)
if addDoubleQuotes {
mstore8(o, 34)
o := add(1, o)
}
// Store "\\u0000" in scratch space.
// Store "0123456789abcdef" in scratch space.
// Also, store `{0x08:"b", 0x09:"t", 0x0a:"n", 0x0c:"f", 0x0d:"r"}`.
// into the scratch space.
mstore(0x15, 0x5c75303030303031323334353637383961626364656662746e006672)
// Bitmask for detecting `["\"","\\"]`.
let e := or(shl(0x22, 1), shl(0x5c, 1))
for { let end := add(s, mload(s)) } iszero(eq(s, end)) {} {
s := add(s, 1)
let c := and(mload(s), 0xff)
if iszero(lt(c, 0x20)) {
if iszero(and(shl(c, 1), e)) {
// Not in `["\"","\\"]`.
mstore8(o, c)
o := add(o, 1)
continue
}
mstore8(o, 0x5c) // "\\".
mstore8(add(o, 1), c)
o := add(o, 2)
continue
}
if iszero(and(shl(c, 1), 0x3700)) {
// Not in `["\b","\t","\n","\f","\d"]`.
mstore8(0x1d, mload(shr(4, c))) // Hex value.
mstore8(0x1e, mload(and(c, 15))) // Hex value.
mstore(o, mload(0x19)) // "\\u00XX".
o := add(o, 6)
continue
}
mstore8(o, 0x5c) // "\\".
mstore8(add(o, 1), mload(add(c, 8)))
o := add(o, 2)
}
if addDoubleQuotes {
mstore8(o, 34)
o := add(1, o)
}
mstore(o, 0) // Zeroize the slot after the string.
mstore(result, sub(o, add(result, 0x20))) // Store the length.
mstore(0x40, add(o, 0x20)) // Allocate memory.
}
}
/// @dev Escapes the string to be used within double-quotes in a JSON.
function escapeJSON(string memory s) internal pure returns (string memory result) {
result = escapeJSON(s, false);
}
/// @dev Encodes `s` so that it can be safely used in a URI,
/// just like `encodeURIComponent` in JavaScript.
/// See: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent
/// See: https://datatracker.ietf.org/doc/html/rfc2396
/// See: https://datatracker.ietf.org/doc/html/rfc3986
function encodeURIComponent(string memory s) internal pure returns (string memory result) {
/// @solidity memory-safe-assembly
assembly {
result := mload(0x40)
// Store "0123456789ABCDEF" in scratch space.
// Uppercased to be consistent with JavaScript's implementation.
mstore(0x0f, 0x30313233343536373839414243444546)
let o := add(result, 0x20)
for { let end := add(s, mload(s)) } iszero(eq(s, end)) {} {
s := add(s, 1)
let c := and(mload(s), 0xff)
// If not in `[0-9A-Z-a-z-_.!~*'()]`.
if iszero(and(1, shr(c, 0x47fffffe87fffffe03ff678200000000))) {
mstore8(o, 0x25) // '%'.
mstore8(add(o, 1), mload(and(shr(4, c), 15)))
mstore8(add(o, 2), mload(and(c, 15)))
o := add(o, 3)
continue
}
mstore8(o, c)
o := add(o, 1)
}
mstore(result, sub(o, add(result, 0x20))) // Store the length.
mstore(o, 0) // Zeroize the slot after the string.
mstore(0x40, add(o, 0x20)) // Allocate memory.
}
}
/// @dev Returns whether `a` equals `b`.
function eq(string memory a, string memory b) internal pure returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
result := eq(keccak256(add(a, 0x20), mload(a)), keccak256(add(b, 0x20), mload(b)))
}
}
/// @dev Returns whether `a` equals `b`, where `b` is a null-terminated small string.
function eqs(string memory a, bytes32 b) internal pure returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
// These should be evaluated on compile time, as far as possible.
let m := not(shl(7, div(not(iszero(b)), 255))) // `0x7f7f ...`.
let x := not(or(m, or(b, add(m, and(b, m)))))
let r := shl(7, iszero(iszero(shr(128, x))))
r := or(r, shl(6, iszero(iszero(shr(64, shr(r, x))))))
r := or(r, shl(5, lt(0xffffffff, shr(r, x))))
r := or(r, shl(4, lt(0xffff, shr(r, x))))
r := or(r, shl(3, lt(0xff, shr(r, x))))
// forgefmt: disable-next-item
result := gt(eq(mload(a), add(iszero(x), xor(31, shr(3, r)))),
xor(shr(add(8, r), b), shr(add(8, r), mload(add(a, 0x20)))))
}
}
/// @dev Packs a single string with its length into a single word.
/// Returns `bytes32(0)` if the length is zero or greater than 31.
function packOne(string memory a) internal pure returns (bytes32 result) {
/// @solidity memory-safe-assembly
assembly {
// We don't need to zero right pad the string,
// since this is our own custom non-standard packing scheme.
result :=
mul(
// Load the length and the bytes.
mload(add(a, 0x1f)),
// `length != 0 && length < 32`. Abuses underflow.
// Assumes that the length is valid and within the block gas limit.
lt(sub(mload(a), 1), 0x1f)
)
}
}
/// @dev Unpacks a string packed using {packOne}.
/// Returns the empty string if `packed` is `bytes32(0)`.
/// If `packed` is not an output of {packOne}, the output behavior is undefined.
function unpackOne(bytes32 packed) internal pure returns (string memory result) {
/// @solidity memory-safe-assembly
assembly {
result := mload(0x40) // Grab the free memory pointer.
mstore(0x40, add(result, 0x40)) // Allocate 2 words (1 for the length, 1 for the bytes).
mstore(result, 0) // Zeroize the length slot.
mstore(add(result, 0x1f), packed) // Store the length and bytes.
mstore(add(add(result, 0x20), mload(result)), 0) // Right pad with zeroes.
}
}
/// @dev Packs two strings with their lengths into a single word.
/// Returns `bytes32(0)` if combined length is zero or greater than 30.
function packTwo(string memory a, string memory b) internal pure returns (bytes32 result) {
/// @solidity memory-safe-assembly
assembly {
let aLen := mload(a)
// We don't need to zero right pad the strings,
// since this is our own custom non-standard packing scheme.
result :=
mul(
or( // Load the length and the bytes of `a` and `b`.
shl(shl(3, sub(0x1f, aLen)), mload(add(a, aLen))), mload(sub(add(b, 0x1e), aLen))),
// `totalLen != 0 && totalLen < 31`. Abuses underflow.
// Assumes that the lengths are valid and within the block gas limit.
lt(sub(add(aLen, mload(b)), 1), 0x1e)
)
}
}
/// @dev Unpacks strings packed using {packTwo}.
/// Returns the empty strings if `packed` is `bytes32(0)`.
/// If `packed` is not an output of {packTwo}, the output behavior is undefined.
function unpackTwo(bytes32 packed)
internal
pure
returns (string memory resultA, string memory resultB)
{
/// @solidity memory-safe-assembly
assembly {
resultA := mload(0x40) // Grab the free memory pointer.
resultB := add(resultA, 0x40)
// Allocate 2 words for each string (1 for the length, 1 for the byte). Total 4 words.
mstore(0x40, add(resultB, 0x40))
// Zeroize the length slots.
mstore(resultA, 0)
mstore(resultB, 0)
// Store the lengths and bytes.
mstore(add(resultA, 0x1f), packed)
mstore(add(resultB, 0x1f), mload(add(add(resultA, 0x20), mload(resultA))))
// Right pad with zeroes.
mstore(add(add(resultA, 0x20), mload(resultA)), 0)
mstore(add(add(resultB, 0x20), mload(resultB)), 0)
}
}
/// @dev Directly returns `a` without copying.
function directReturn(string memory a) internal pure {
assembly {
// Assumes that the string does not start from the scratch space.
let retStart := sub(a, 0x20)
let retUnpaddedSize := add(mload(a), 0x40)
// Right pad with zeroes. Just in case the string is produced
// by a method that doesn't zero right pad.
mstore(add(retStart, retUnpaddedSize), 0)
mstore(retStart, 0x20) // Store the return offset.
// End the transaction, returning the string.
return(retStart, and(not(0x1f), add(0x1f, retUnpaddedSize)))
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import {Ownable} from "./Ownable.sol";
/// @notice Simple single owner and multiroles authorization mixin.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/auth/OwnableRoles.sol)
///
/// @dev Note:
/// This implementation does NOT auto-initialize the owner to `msg.sender`.
/// You MUST call the `_initializeOwner` in the constructor / initializer.
///
/// While the ownable portion follows
/// [EIP-173](https://eips.ethereum.org/EIPS/eip-173) for compatibility,
/// the nomenclature for the 2-step ownership handover may be unique to this codebase.
abstract contract OwnableRoles is Ownable {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* EVENTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The `user`'s roles is updated to `roles`.
/// Each bit of `roles` represents whether the role is set.
event RolesUpdated(address indexed user, uint256 indexed roles);
/// @dev `keccak256(bytes("RolesUpdated(address,uint256)"))`.
uint256 private constant _ROLES_UPDATED_EVENT_SIGNATURE =
0x715ad5ce61fc9595c7b415289d59cf203f23a94fa06f04af7e489a0a76e1fe26;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* STORAGE */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The role slot of `user` is given by:
/// ```
/// mstore(0x00, or(shl(96, user), _ROLE_SLOT_SEED))
/// let roleSlot := keccak256(0x00, 0x20)
/// ```
/// This automatically ignores the upper bits of the `user` in case
/// they are not clean, as well as keep the `keccak256` under 32-bytes.
///
/// Note: This is equivalent to `uint32(bytes4(keccak256("_OWNER_SLOT_NOT")))`.
uint256 private constant _ROLE_SLOT_SEED = 0x8b78c6d8;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Overwrite the roles directly without authorization guard.
function _setRoles(address user, uint256 roles) internal virtual {
/// @solidity memory-safe-assembly
assembly {
mstore(0x0c, _ROLE_SLOT_SEED)
mstore(0x00, user)
// Store the new value.
sstore(keccak256(0x0c, 0x20), roles)
// Emit the {RolesUpdated} event.
log3(0, 0, _ROLES_UPDATED_EVENT_SIGNATURE, shr(96, mload(0x0c)), roles)
}
}
/// @dev Updates the roles directly without authorization guard.
/// If `on` is true, each set bit of `roles` will be turned on,
/// otherwise, each set bit of `roles` will be turned off.
function _updateRoles(address user, uint256 roles, bool on) internal virtual {
/// @solidity memory-safe-assembly
assembly {
mstore(0x0c, _ROLE_SLOT_SEED)
mstore(0x00, user)
let roleSlot := keccak256(0x0c, 0x20)
// Load the current value.
let current := sload(roleSlot)
// Compute the updated roles if `on` is true.
let updated := or(current, roles)
// Compute the updated roles if `on` is false.
// Use `and` to compute the intersection of `current` and `roles`,
// `xor` it with `current` to flip the bits in the intersection.
if iszero(on) { updated := xor(current, and(current, roles)) }
// Then, store the new value.
sstore(roleSlot, updated)
// Emit the {RolesUpdated} event.
log3(0, 0, _ROLES_UPDATED_EVENT_SIGNATURE, shr(96, mload(0x0c)), updated)
}
}
/// @dev Grants the roles directly without authorization guard.
/// Each bit of `roles` represents the role to turn on.
function _grantRoles(address user, uint256 roles) internal virtual {
_updateRoles(user, roles, true);
}
/// @dev Removes the roles directly without authorization guard.
/// Each bit of `roles` represents the role to turn off.
function _removeRoles(address user, uint256 roles) internal virtual {
_updateRoles(user, roles, false);
}
/// @dev Throws if the sender does not have any of the `roles`.
function _checkRoles(uint256 roles) internal view virtual {
/// @solidity memory-safe-assembly
assembly {
// Compute the role slot.
mstore(0x0c, _ROLE_SLOT_SEED)
mstore(0x00, caller())
// Load the stored value, and if the `and` intersection
// of the value and `roles` is zero, revert.
if iszero(and(sload(keccak256(0x0c, 0x20)), roles)) {
mstore(0x00, 0x82b42900) // `Unauthorized()`.
revert(0x1c, 0x04)
}
}
}
/// @dev Throws if the sender is not the owner,
/// and does not have any of the `roles`.
/// Checks for ownership first, then lazily checks for roles.
function _checkOwnerOrRoles(uint256 roles) internal view virtual {
/// @solidity memory-safe-assembly
assembly {
// If the caller is not the stored owner.
// Note: `_ROLE_SLOT_SEED` is equal to `_OWNER_SLOT_NOT`.
if iszero(eq(caller(), sload(not(_ROLE_SLOT_SEED)))) {
// Compute the role slot.
mstore(0x0c, _ROLE_SLOT_SEED)
mstore(0x00, caller())
// Load the stored value, and if the `and` intersection
// of the value and `roles` is zero, revert.
if iszero(and(sload(keccak256(0x0c, 0x20)), roles)) {
mstore(0x00, 0x82b42900) // `Unauthorized()`.
revert(0x1c, 0x04)
}
}
}
}
/// @dev Throws if the sender does not have any of the `roles`,
/// and is not the owner.
/// Checks for roles first, then lazily checks for ownership.
function _checkRolesOrOwner(uint256 roles) internal view virtual {
/// @solidity memory-safe-assembly
assembly {
// Compute the role slot.
mstore(0x0c, _ROLE_SLOT_SEED)
mstore(0x00, caller())
// Load the stored value, and if the `and` intersection
// of the value and `roles` is zero, revert.
if iszero(and(sload(keccak256(0x0c, 0x20)), roles)) {
// If the caller is not the stored owner.
// Note: `_ROLE_SLOT_SEED` is equal to `_OWNER_SLOT_NOT`.
if iszero(eq(caller(), sload(not(_ROLE_SLOT_SEED)))) {
mstore(0x00, 0x82b42900) // `Unauthorized()`.
revert(0x1c, 0x04)
}
}
}
}
/// @dev Convenience function to return a `roles` bitmap from an array of `ordinals`.
/// This is meant for frontends like Etherscan, and is therefore not fully optimized.
/// Not recommended to be called on-chain.
/// Made internal to conserve bytecode. Wrap it in a public function if needed.
function _rolesFromOrdinals(uint8[] memory ordinals) internal pure returns (uint256 roles) {
/// @solidity memory-safe-assembly
assembly {
for { let i := shl(5, mload(ordinals)) } i { i := sub(i, 0x20) } {
// We don't need to mask the values of `ordinals`, as Solidity
// cleans dirty upper bits when storing variables into memory.
roles := or(shl(mload(add(ordinals, i)), 1), roles)
}
}
}
/// @dev Convenience function to return an array of `ordinals` from the `roles` bitmap.
/// This is meant for frontends like Etherscan, and is therefore not fully optimized.
/// Not recommended to be called on-chain.
/// Made internal to conserve bytecode. Wrap it in a public function if needed.
function _ordinalsFromRoles(uint256 roles) internal pure returns (uint8[] memory ordinals) {
/// @solidity memory-safe-assembly
assembly {
// Grab the pointer to the free memory.
ordinals := mload(0x40)
let ptr := add(ordinals, 0x20)
let o := 0
// The absence of lookup tables, De Bruijn, etc., here is intentional for
// smaller bytecode, as this function is not meant to be called on-chain.
for { let t := roles } 1 {} {
mstore(ptr, o)
// `shr` 5 is equivalent to multiplying by 0x20.
// Push back into the ordinals array if the bit is set.
ptr := add(ptr, shl(5, and(t, 1)))
o := add(o, 1)
t := shr(o, roles)
if iszero(t) { break }
}
// Store the length of `ordinals`.
mstore(ordinals, shr(5, sub(ptr, add(ordinals, 0x20))))
// Allocate the memory.
mstore(0x40, ptr)
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* PUBLIC UPDATE FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Allows the owner to grant `user` `roles`.
/// If the `user` already has a role, then it will be an no-op for the role.
function grantRoles(address user, uint256 roles) public payable virtual onlyOwner {
_grantRoles(user, roles);
}
/// @dev Allows the owner to remove `user` `roles`.
/// If the `user` does not have a role, then it will be an no-op for the role.
function revokeRoles(address user, uint256 roles) public payable virtual onlyOwner {
_removeRoles(user, roles);
}
/// @dev Allow the caller to remove their own roles.
/// If the caller does not have a role, then it will be an no-op for the role.
function renounceRoles(uint256 roles) public payable virtual {
_removeRoles(msg.sender, roles);
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* PUBLIC READ FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the roles of `user`.
function rolesOf(address user) public view virtual returns (uint256 roles) {
/// @solidity memory-safe-assembly
assembly {
// Compute the role slot.
mstore(0x0c, _ROLE_SLOT_SEED)
mstore(0x00, user)
// Load the stored value.
roles := sload(keccak256(0x0c, 0x20))
}
}
/// @dev Returns whether `user` has any of `roles`.
function hasAnyRole(address user, uint256 roles) public view virtual returns (bool) {
return rolesOf(user) & roles != 0;
}
/// @dev Returns whether `user` has all of `roles`.
function hasAllRoles(address user, uint256 roles) public view virtual returns (bool) {
return rolesOf(user) & roles == roles;
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* MODIFIERS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Marks a function as only callable by an account with `roles`.
modifier onlyRoles(uint256 roles) virtual {
_checkRoles(roles);
_;
}
/// @dev Marks a function as only callable by the owner or by an account
/// with `roles`. Checks for ownership first, then lazily checks for roles.
modifier onlyOwnerOrRoles(uint256 roles) virtual {
_checkOwnerOrRoles(roles);
_;
}
/// @dev Marks a function as only callable by an account with `roles`
/// or the owner. Checks for roles first, then lazily checks for ownership.
modifier onlyRolesOrOwner(uint256 roles) virtual {
_checkRolesOrOwner(roles);
_;
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* ROLE CONSTANTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
// IYKYK
uint256 internal constant _ROLE_0 = 1 << 0;
uint256 internal constant _ROLE_1 = 1 << 1;
uint256 internal constant _ROLE_2 = 1 << 2;
uint256 internal constant _ROLE_3 = 1 << 3;
uint256 internal constant _ROLE_4 = 1 << 4;
uint256 internal constant _ROLE_5 = 1 << 5;
uint256 internal constant _ROLE_6 = 1 << 6;
uint256 internal constant _ROLE_7 = 1 << 7;
uint256 internal constant _ROLE_8 = 1 << 8;
uint256 internal constant _ROLE_9 = 1 << 9;
uint256 internal constant _ROLE_10 = 1 << 10;
uint256 internal constant _ROLE_11 = 1 << 11;
uint256 internal constant _ROLE_12 = 1 << 12;
uint256 internal constant _ROLE_13 = 1 << 13;
uint256 internal constant _ROLE_14 = 1 << 14;
uint256 internal constant _ROLE_15 = 1 << 15;
uint256 internal constant _ROLE_16 = 1 << 16;
uint256 internal constant _ROLE_17 = 1 << 17;
uint256 internal constant _ROLE_18 = 1 << 18;
uint256 internal constant _ROLE_19 = 1 << 19;
uint256 internal constant _ROLE_20 = 1 << 20;
uint256 internal constant _ROLE_21 = 1 << 21;
uint256 internal constant _ROLE_22 = 1 << 22;
uint256 internal constant _ROLE_23 = 1 << 23;
uint256 internal constant _ROLE_24 = 1 << 24;
uint256 internal constant _ROLE_25 = 1 << 25;
uint256 internal constant _ROLE_26 = 1 << 26;
uint256 internal constant _ROLE_27 = 1 << 27;
uint256 internal constant _ROLE_28 = 1 << 28;
uint256 internal constant _ROLE_29 = 1 << 29;
uint256 internal constant _ROLE_30 = 1 << 30;
uint256 internal constant _ROLE_31 = 1 << 31;
uint256 internal constant _ROLE_32 = 1 << 32;
uint256 internal constant _ROLE_33 = 1 << 33;
uint256 internal constant _ROLE_34 = 1 << 34;
uint256 internal constant _ROLE_35 = 1 << 35;
uint256 internal constant _ROLE_36 = 1 << 36;
uint256 internal constant _ROLE_37 = 1 << 37;
uint256 internal constant _ROLE_38 = 1 << 38;
uint256 internal constant _ROLE_39 = 1 << 39;
uint256 internal constant _ROLE_40 = 1 << 40;
uint256 internal constant _ROLE_41 = 1 << 41;
uint256 internal constant _ROLE_42 = 1 << 42;
uint256 internal constant _ROLE_43 = 1 << 43;
uint256 internal constant _ROLE_44 = 1 << 44;
uint256 internal constant _ROLE_45 = 1 << 45;
uint256 internal constant _ROLE_46 = 1 << 46;
uint256 internal constant _ROLE_47 = 1 << 47;
uint256 internal constant _ROLE_48 = 1 << 48;
uint256 internal constant _ROLE_49 = 1 << 49;
uint256 internal constant _ROLE_50 = 1 << 50;
uint256 internal constant _ROLE_51 = 1 << 51;
uint256 internal constant _ROLE_52 = 1 << 52;
uint256 internal constant _ROLE_53 = 1 << 53;
uint256 internal constant _ROLE_54 = 1 << 54;
uint256 internal constant _ROLE_55 = 1 << 55;
uint256 internal constant _ROLE_56 = 1 << 56;
uint256 internal constant _ROLE_57 = 1 << 57;
uint256 internal constant _ROLE_58 = 1 << 58;
uint256 internal constant _ROLE_59 = 1 << 59;
uint256 internal constant _ROLE_60 = 1 << 60;
uint256 internal constant _ROLE_61 = 1 << 61;
uint256 internal constant _ROLE_62 = 1 << 62;
uint256 internal constant _ROLE_63 = 1 << 63;
uint256 internal constant _ROLE_64 = 1 << 64;
uint256 internal constant _ROLE_65 = 1 << 65;
uint256 internal constant _ROLE_66 = 1 << 66;
uint256 internal constant _ROLE_67 = 1 << 67;
uint256 internal constant _ROLE_68 = 1 << 68;
uint256 internal constant _ROLE_69 = 1 << 69;
uint256 internal constant _ROLE_70 = 1 << 70;
uint256 internal constant _ROLE_71 = 1 << 71;
uint256 internal constant _ROLE_72 = 1 << 72;
uint256 internal constant _ROLE_73 = 1 << 73;
uint256 internal constant _ROLE_74 = 1 << 74;
uint256 internal constant _ROLE_75 = 1 << 75;
uint256 internal constant _ROLE_76 = 1 << 76;
uint256 internal constant _ROLE_77 = 1 << 77;
uint256 internal constant _ROLE_78 = 1 << 78;
uint256 internal constant _ROLE_79 = 1 << 79;
uint256 internal constant _ROLE_80 = 1 << 80;
uint256 internal constant _ROLE_81 = 1 << 81;
uint256 internal constant _ROLE_82 = 1 << 82;
uint256 internal constant _ROLE_83 = 1 << 83;
uint256 internal constant _ROLE_84 = 1 << 84;
uint256 internal constant _ROLE_85 = 1 << 85;
uint256 internal constant _ROLE_86 = 1 << 86;
uint256 internal constant _ROLE_87 = 1 << 87;
uint256 internal constant _ROLE_88 = 1 << 88;
uint256 internal constant _ROLE_89 = 1 << 89;
uint256 internal constant _ROLE_90 = 1 << 90;
uint256 internal constant _ROLE_91 = 1 << 91;
uint256 internal constant _ROLE_92 = 1 << 92;
uint256 internal constant _ROLE_93 = 1 << 93;
uint256 internal constant _ROLE_94 = 1 << 94;
uint256 internal constant _ROLE_95 = 1 << 95;
uint256 internal constant _ROLE_96 = 1 << 96;
uint256 internal constant _ROLE_97 = 1 << 97;
uint256 internal constant _ROLE_98 = 1 << 98;
uint256 internal constant _ROLE_99 = 1 << 99;
uint256 internal constant _ROLE_100 = 1 << 100;
uint256 internal constant _ROLE_101 = 1 << 101;
uint256 internal constant _ROLE_102 = 1 << 102;
uint256 internal constant _ROLE_103 = 1 << 103;
uint256 internal constant _ROLE_104 = 1 << 104;
uint256 internal constant _ROLE_105 = 1 << 105;
uint256 internal constant _ROLE_106 = 1 << 106;
uint256 internal constant _ROLE_107 = 1 << 107;
uint256 internal constant _ROLE_108 = 1 << 108;
uint256 internal constant _ROLE_109 = 1 << 109;
uint256 internal constant _ROLE_110 = 1 << 110;
uint256 internal constant _ROLE_111 = 1 << 111;
uint256 internal constant _ROLE_112 = 1 << 112;
uint256 internal constant _ROLE_113 = 1 << 113;
uint256 internal constant _ROLE_114 = 1 << 114;
uint256 internal constant _ROLE_115 = 1 << 115;
uint256 internal constant _ROLE_116 = 1 << 116;
uint256 internal constant _ROLE_117 = 1 << 117;
uint256 internal constant _ROLE_118 = 1 << 118;
uint256 internal constant _ROLE_119 = 1 << 119;
uint256 internal constant _ROLE_120 = 1 << 120;
uint256 internal constant _ROLE_121 = 1 << 121;
uint256 internal constant _ROLE_122 = 1 << 122;
uint256 internal constant _ROLE_123 = 1 << 123;
uint256 internal constant _ROLE_124 = 1 << 124;
uint256 internal constant _ROLE_125 = 1 << 125;
uint256 internal constant _ROLE_126 = 1 << 126;
uint256 internal constant _ROLE_127 = 1 << 127;
uint256 internal constant _ROLE_128 = 1 << 128;
uint256 internal constant _ROLE_129 = 1 << 129;
uint256 internal constant _ROLE_130 = 1 << 130;
uint256 internal constant _ROLE_131 = 1 << 131;
uint256 internal constant _ROLE_132 = 1 << 132;
uint256 internal constant _ROLE_133 = 1 << 133;
uint256 internal constant _ROLE_134 = 1 << 134;
uint256 internal constant _ROLE_135 = 1 << 135;
uint256 internal constant _ROLE_136 = 1 << 136;
uint256 internal constant _ROLE_137 = 1 << 137;
uint256 internal constant _ROLE_138 = 1 << 138;
uint256 internal constant _ROLE_139 = 1 << 139;
uint256 internal constant _ROLE_140 = 1 << 140;
uint256 internal constant _ROLE_141 = 1 << 141;
uint256 internal constant _ROLE_142 = 1 << 142;
uint256 internal constant _ROLE_143 = 1 << 143;
uint256 internal constant _ROLE_144 = 1 << 144;
uint256 internal constant _ROLE_145 = 1 << 145;
uint256 internal constant _ROLE_146 = 1 << 146;
uint256 internal constant _ROLE_147 = 1 << 147;
uint256 internal constant _ROLE_148 = 1 << 148;
uint256 internal constant _ROLE_149 = 1 << 149;
uint256 internal constant _ROLE_150 = 1 << 150;
uint256 internal constant _ROLE_151 = 1 << 151;
uint256 internal constant _ROLE_152 = 1 << 152;
uint256 internal constant _ROLE_153 = 1 << 153;
uint256 internal constant _ROLE_154 = 1 << 154;
uint256 internal constant _ROLE_155 = 1 << 155;
uint256 internal constant _ROLE_156 = 1 << 156;
uint256 internal constant _ROLE_157 = 1 << 157;
uint256 internal constant _ROLE_158 = 1 << 158;
uint256 internal constant _ROLE_159 = 1 << 159;
uint256 internal constant _ROLE_160 = 1 << 160;
uint256 internal constant _ROLE_161 = 1 << 161;
uint256 internal constant _ROLE_162 = 1 << 162;
uint256 internal constant _ROLE_163 = 1 << 163;
uint256 internal constant _ROLE_164 = 1 << 164;
uint256 internal constant _ROLE_165 = 1 << 165;
uint256 internal constant _ROLE_166 = 1 << 166;
uint256 internal constant _ROLE_167 = 1 << 167;
uint256 internal constant _ROLE_168 = 1 << 168;
uint256 internal constant _ROLE_169 = 1 << 169;
uint256 internal constant _ROLE_170 = 1 << 170;
uint256 internal constant _ROLE_171 = 1 << 171;
uint256 internal constant _ROLE_172 = 1 << 172;
uint256 internal constant _ROLE_173 = 1 << 173;
uint256 internal constant _ROLE_174 = 1 << 174;
uint256 internal constant _ROLE_175 = 1 << 175;
uint256 internal constant _ROLE_176 = 1 << 176;
uint256 internal constant _ROLE_177 = 1 << 177;
uint256 internal constant _ROLE_178 = 1 << 178;
uint256 internal constant _ROLE_179 = 1 << 179;
uint256 internal constant _ROLE_180 = 1 << 180;
uint256 internal constant _ROLE_181 = 1 << 181;
uint256 internal constant _ROLE_182 = 1 << 182;
uint256 internal constant _ROLE_183 = 1 << 183;
uint256 internal constant _ROLE_184 = 1 << 184;
uint256 internal constant _ROLE_185 = 1 << 185;
uint256 internal constant _ROLE_186 = 1 << 186;
uint256 internal constant _ROLE_187 = 1 << 187;
uint256 internal constant _ROLE_188 = 1 << 188;
uint256 internal constant _ROLE_189 = 1 << 189;
uint256 internal constant _ROLE_190 = 1 << 190;
uint256 internal constant _ROLE_191 = 1 << 191;
uint256 internal constant _ROLE_192 = 1 << 192;
uint256 internal constant _ROLE_193 = 1 << 193;
uint256 internal constant _ROLE_194 = 1 << 194;
uint256 internal constant _ROLE_195 = 1 << 195;
uint256 internal constant _ROLE_196 = 1 << 196;
uint256 internal constant _ROLE_197 = 1 << 197;
uint256 internal constant _ROLE_198 = 1 << 198;
uint256 internal constant _ROLE_199 = 1 << 199;
uint256 internal constant _ROLE_200 = 1 << 200;
uint256 internal constant _ROLE_201 = 1 << 201;
uint256 internal constant _ROLE_202 = 1 << 202;
uint256 internal constant _ROLE_203 = 1 << 203;
uint256 internal constant _ROLE_204 = 1 << 204;
uint256 internal constant _ROLE_205 = 1 << 205;
uint256 internal constant _ROLE_206 = 1 << 206;
uint256 internal constant _ROLE_207 = 1 << 207;
uint256 internal constant _ROLE_208 = 1 << 208;
uint256 internal constant _ROLE_209 = 1 << 209;
uint256 internal constant _ROLE_210 = 1 << 210;
uint256 internal constant _ROLE_211 = 1 << 211;
uint256 internal constant _ROLE_212 = 1 << 212;
uint256 internal constant _ROLE_213 = 1 << 213;
uint256 internal constant _ROLE_214 = 1 << 214;
uint256 internal constant _ROLE_215 = 1 << 215;
uint256 internal constant _ROLE_216 = 1 << 216;
uint256 internal constant _ROLE_217 = 1 << 217;
uint256 internal constant _ROLE_218 = 1 << 218;
uint256 internal constant _ROLE_219 = 1 << 219;
uint256 internal constant _ROLE_220 = 1 << 220;
uint256 internal constant _ROLE_221 = 1 << 221;
uint256 internal constant _ROLE_222 = 1 << 222;
uint256 internal constant _ROLE_223 = 1 << 223;
uint256 internal constant _ROLE_224 = 1 << 224;
uint256 internal constant _ROLE_225 = 1 << 225;
uint256 internal constant _ROLE_226 = 1 << 226;
uint256 internal constant _ROLE_227 = 1 << 227;
uint256 internal constant _ROLE_228 = 1 << 228;
uint256 internal constant _ROLE_229 = 1 << 229;
uint256 internal constant _ROLE_230 = 1 << 230;
uint256 internal constant _ROLE_231 = 1 << 231;
uint256 internal constant _ROLE_232 = 1 << 232;
uint256 internal constant _ROLE_233 = 1 << 233;
uint256 internal constant _ROLE_234 = 1 << 234;
uint256 internal constant _ROLE_235 = 1 << 235;
uint256 internal constant _ROLE_236 = 1 << 236;
uint256 internal constant _ROLE_237 = 1 << 237;
uint256 internal constant _ROLE_238 = 1 << 238;
uint256 internal constant _ROLE_239 = 1 << 239;
uint256 internal constant _ROLE_240 = 1 << 240;
uint256 internal constant _ROLE_241 = 1 << 241;
uint256 internal constant _ROLE_242 = 1 << 242;
uint256 internal constant _ROLE_243 = 1 << 243;
uint256 internal constant _ROLE_244 = 1 << 244;
uint256 internal constant _ROLE_245 = 1 << 245;
uint256 internal constant _ROLE_246 = 1 << 246;
uint256 internal constant _ROLE_247 = 1 << 247;
uint256 internal constant _ROLE_248 = 1 << 248;
uint256 internal constant _ROLE_249 = 1 << 249;
uint256 internal constant _ROLE_250 = 1 << 250;
uint256 internal constant _ROLE_251 = 1 << 251;
uint256 internal constant _ROLE_252 = 1 << 252;
uint256 internal constant _ROLE_253 = 1 << 253;
uint256 internal constant _ROLE_254 = 1 << 254;
uint256 internal constant _ROLE_255 = 1 << 255;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @notice Simple ERC2981 NFT Royalty Standard implementation.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/tokens/ERC2981.sol)
/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/common/ERC2981.sol)
abstract contract ERC2981 {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CUSTOM ERRORS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The royalty fee numerator exceeds the fee denominator.
error RoyaltyOverflow();
/// @dev The royalty receiver cannot be the zero address.
error RoyaltyReceiverIsZeroAddress();
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* STORAGE */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The default royalty info is given by:
/// ```
/// let packed := sload(_ERC2981_MASTER_SLOT_SEED)
/// let receiver := shr(96, packed)
/// let royaltyFraction := xor(packed, shl(96, receiver))
/// ```
///
/// The per token royalty info is given by.
/// ```
/// mstore(0x00, tokenId)
/// mstore(0x20, _ERC2981_MASTER_SLOT_SEED)
/// let packed := sload(keccak256(0x00, 0x40))
/// let receiver := shr(96, packed)
/// let royaltyFraction := xor(packed, shl(96, receiver))
/// ```
uint256 private constant _ERC2981_MASTER_SLOT_SEED = 0xaa4ec00224afccfdb7;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* ERC2981 */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Checks that `_feeDenominator` is non-zero.
constructor() {
require(_feeDenominator() != 0, "Fee denominator cannot be zero.");
}
/// @dev Returns the denominator for the royalty amount.
/// Defaults to 10000, which represents fees in basis points.
/// Override this function to return a custom amount if needed.
function _feeDenominator() internal pure virtual returns (uint96) {
return 10000;
}
/// @dev Returns true if this contract implements the interface defined by `interfaceId`.
/// See: https://eips.ethereum.org/EIPS/eip-165
/// This function call must use less than 30000 gas.
function supportsInterface(bytes4 interfaceId) public view virtual returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
let s := shr(224, interfaceId)
// ERC165: 0x01ffc9a7, ERC2981: 0x2a55205a.
result := or(eq(s, 0x01ffc9a7), eq(s, 0x2a55205a))
}
}
/// @dev Returns the `receiver` and `royaltyAmount` for `tokenId` sold at `salePrice`.
function royaltyInfo(uint256 tokenId, uint256 salePrice)
public
view
virtual
returns (address receiver, uint256 royaltyAmount)
{
uint256 feeDenominator = _feeDenominator();
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, tokenId)
mstore(0x20, _ERC2981_MASTER_SLOT_SEED)
let packed := sload(keccak256(0x00, 0x40))
receiver := shr(96, packed)
if iszero(receiver) {
packed := sload(mload(0x20))
receiver := shr(96, packed)
}
let x := salePrice
let y := xor(packed, shl(96, receiver)) // `feeNumerator`.
// Overflow check, equivalent to `require(y == 0 || x <= type(uint256).max / y)`.
// Out-of-gas revert. Should not be triggered in practice, but included for safety.
returndatacopy(returndatasize(), returndatasize(), mul(y, gt(x, div(not(0), y))))
royaltyAmount := div(mul(x, y), feeDenominator)
}
}
/// @dev Sets the default royalty `receiver` and `feeNumerator`.
///
/// Requirements:
/// - `receiver` must not be the zero address.
/// - `feeNumerator` must not be greater than the fee denominator.
function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual {
uint256 feeDenominator = _feeDenominator();
/// @solidity memory-safe-assembly
assembly {
feeNumerator := shr(160, shl(160, feeNumerator))
if gt(feeNumerator, feeDenominator) {
mstore(0x00, 0x350a88b3) // `RoyaltyOverflow()`.
revert(0x1c, 0x04)
}
let packed := shl(96, receiver)
if iszero(packed) {
mstore(0x00, 0xb4457eaa) // `RoyaltyReceiverIsZeroAddress()`.
revert(0x1c, 0x04)
}
sstore(_ERC2981_MASTER_SLOT_SEED, or(packed, feeNumerator))
}
}
/// @dev Sets the default royalty `receiver` and `feeNumerator` to zero.
function _deleteDefaultRoyalty() internal virtual {
/// @solidity memory-safe-assembly
assembly {
sstore(_ERC2981_MASTER_SLOT_SEED, 0)
}
}
/// @dev Sets the royalty `receiver` and `feeNumerator` for `tokenId`.
///
/// Requirements:
/// - `receiver` must not be the zero address.
/// - `feeNumerator` must not be greater than the fee denominator.
function _setTokenRoyalty(uint256 tokenId, address receiver, uint96 feeNumerator)
internal
virtual
{
uint256 feeDenominator = _feeDenominator();
/// @solidity memory-safe-assembly
assembly {
feeNumerator := shr(160, shl(160, feeNumerator))
if gt(feeNumerator, feeDenominator) {
mstore(0x00, 0x350a88b3) // `RoyaltyOverflow()`.
revert(0x1c, 0x04)
}
let packed := shl(96, receiver)
if iszero(packed) {
mstore(0x00, 0xb4457eaa) // `RoyaltyReceiverIsZeroAddress()`.
revert(0x1c, 0x04)
}
mstore(0x00, tokenId)
mstore(0x20, _ERC2981_MASTER_SLOT_SEED)
sstore(keccak256(0x00, 0x40), or(packed, feeNumerator))
}
}
/// @dev Sets the royalty `receiver` and `feeNumerator` for `tokenId` to zero.
function _resetTokenRoyalty(uint256 tokenId) internal virtual {
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, tokenId)
mstore(0x20, _ERC2981_MASTER_SLOT_SEED)
sstore(keccak256(0x00, 0x40), 0)
}
}
}// SPDX-License-Identifier: CC0-1.0
pragma solidity ^0.8.0;
interface IERC5192 {
/// @notice Emitted when the locking status is changed to locked.
/// @dev If a token is minted and the status is locked, this event should be emitted.
/// @param tokenId The identifier for a token.
event Locked(uint256 tokenId);
/// @notice Emitted when the locking status is changed to unlocked.
/// @dev If a token is minted and the status is unlocked, this event should be emitted.
/// @param tokenId The identifier for a token.
event Unlocked(uint256 tokenId);
/// @notice Returns the locking status of an Soulbound Token
/// @dev SBTs assigned to zero address are considered invalid, and queries
/// about them do throw.
/// @param tokenId The identifier for an SBT.
function locked(uint256 tokenId) external view returns (bool);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import {CollectionConfig} from "../structs/CollectionConfig.sol";
interface IBeacon {
function read(
address contractAddress,
uint256[] calldata tokenIds,
uint32[] calldata eids,
address refundRecipient,
uint128 callbackGasLimit
) external payable returns (bytes32);
function send(
uint32 eid,
address collection,
uint256[] calldata tokenIds,
address beneficiary,
address refundRecipient,
uint128 supplementalGasLimit
) external payable;
function getSendOptions(address collectionAddress, uint256[] calldata tokenIds)
external
view
returns (bytes memory);
function getReadOptions(address collectionAddress, uint256[] calldata tokenIds, uint128 callbackGasLimit)
external
view
returns (bytes memory);
function quoteSend(uint32 eid, address collectionAddress, uint256[] calldata tokenIds, bytes calldata _options)
external
view
returns (uint256 nativeFee, uint256 lzTokenFee);
function quoteRead(
address collectionAddress,
uint256[] calldata tokenIds,
uint32[] calldata eids,
bytes calldata _options
) external view returns (uint256 nativeFee, uint256 lzTokenFee);
function registerCollection(
address _shadowAddress,
uint32 _baseCollectionChainId,
address _baseCollectionAddress,
uint32 _baseCollectionEid,
uint32 _baseCollectionPerNftOwnershipUpdateCost
) external;
function shadowToBase(address _shadowAddress) external view returns (address);
function baseToShadow(address _baseAddress) external view returns (address);
function collectionConfigs(address _shadowAddress) external view returns (CollectionConfig memory);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
interface ICreatorToken {
event TransferValidatorUpdated(address oldValidator, address newValidator);
function getTransferValidationFunction() external view returns (bytes4 functionSignature, bool isViewFunction);
function getTransferValidator() external view returns (address validator);
function setTransferValidator(address validator) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
interface ITransferValidator {
function validateTransfer(address caller, address from, address to) external view;
function validateTransfer(address caller, address from, address to, uint256 tokenId) external view;
function validateTransfer(address caller, address from, address to, uint256 tokenId, uint256 amount) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
interface IShadowCallbackReceiver {
function executeCallback(bytes32 guid) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @notice Simple single owner authorization mixin.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/auth/Ownable.sol)
///
/// @dev Note:
/// This implementation does NOT auto-initialize the owner to `msg.sender`.
/// You MUST call the `_initializeOwner` in the constructor / initializer.
///
/// While the ownable portion follows
/// [EIP-173](https://eips.ethereum.org/EIPS/eip-173) for compatibility,
/// the nomenclature for the 2-step ownership handover may be unique to this codebase.
abstract contract Ownable {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CUSTOM ERRORS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The caller is not authorized to call the function.
error Unauthorized();
/// @dev The `newOwner` cannot be the zero address.
error NewOwnerIsZeroAddress();
/// @dev The `pendingOwner` does not have a valid handover request.
error NoHandoverRequest();
/// @dev Cannot double-initialize.
error AlreadyInitialized();
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* EVENTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The ownership is transferred from `oldOwner` to `newOwner`.
/// This event is intentionally kept the same as OpenZeppelin's Ownable to be
/// compatible with indexers and [EIP-173](https://eips.ethereum.org/EIPS/eip-173),
/// despite it not being as lightweight as a single argument event.
event OwnershipTransferred(address indexed oldOwner, address indexed newOwner);
/// @dev An ownership handover to `pendingOwner` has been requested.
event OwnershipHandoverRequested(address indexed pendingOwner);
/// @dev The ownership handover to `pendingOwner` has been canceled.
event OwnershipHandoverCanceled(address indexed pendingOwner);
/// @dev `keccak256(bytes("OwnershipTransferred(address,address)"))`.
uint256 private constant _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE =
0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0;
/// @dev `keccak256(bytes("OwnershipHandoverRequested(address)"))`.
uint256 private constant _OWNERSHIP_HANDOVER_REQUESTED_EVENT_SIGNATURE =
0xdbf36a107da19e49527a7176a1babf963b4b0ff8cde35ee35d6cd8f1f9ac7e1d;
/// @dev `keccak256(bytes("OwnershipHandoverCanceled(address)"))`.
uint256 private constant _OWNERSHIP_HANDOVER_CANCELED_EVENT_SIGNATURE =
0xfa7b8eab7da67f412cc9575ed43464468f9bfbae89d1675917346ca6d8fe3c92;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* STORAGE */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The owner slot is given by:
/// `bytes32(~uint256(uint32(bytes4(keccak256("_OWNER_SLOT_NOT")))))`.
/// It is intentionally chosen to be a high value
/// to avoid collision with lower slots.
/// The choice of manual storage layout is to enable compatibility
/// with both regular and upgradeable contracts.
bytes32 internal constant _OWNER_SLOT =
0xffffffffffffffffffffffffffffffffffffffffffffffffffffffff74873927;
/// The ownership handover slot of `newOwner` is given by:
/// ```
/// mstore(0x00, or(shl(96, user), _HANDOVER_SLOT_SEED))
/// let handoverSlot := keccak256(0x00, 0x20)
/// ```
/// It stores the expiry timestamp of the two-step ownership handover.
uint256 private constant _HANDOVER_SLOT_SEED = 0x389a75e1;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Override to return true to make `_initializeOwner` prevent double-initialization.
function _guardInitializeOwner() internal pure virtual returns (bool guard) {}
/// @dev Initializes the owner directly without authorization guard.
/// This function must be called upon initialization,
/// regardless of whether the contract is upgradeable or not.
/// This is to enable generalization to both regular and upgradeable contracts,
/// and to save gas in case the initial owner is not the caller.
/// For performance reasons, this function will not check if there
/// is an existing owner.
function _initializeOwner(address newOwner) internal virtual {
if (_guardInitializeOwner()) {
/// @solidity memory-safe-assembly
assembly {
let ownerSlot := _OWNER_SLOT
if sload(ownerSlot) {
mstore(0x00, 0x0dc149f0) // `AlreadyInitialized()`.
revert(0x1c, 0x04)
}
// Clean the upper 96 bits.
newOwner := shr(96, shl(96, newOwner))
// Store the new value.
sstore(ownerSlot, or(newOwner, shl(255, iszero(newOwner))))
// Emit the {OwnershipTransferred} event.
log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, 0, newOwner)
}
} else {
/// @solidity memory-safe-assembly
assembly {
// Clean the upper 96 bits.
newOwner := shr(96, shl(96, newOwner))
// Store the new value.
sstore(_OWNER_SLOT, newOwner)
// Emit the {OwnershipTransferred} event.
log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, 0, newOwner)
}
}
}
/// @dev Sets the owner directly without authorization guard.
function _setOwner(address newOwner) internal virtual {
if (_guardInitializeOwner()) {
/// @solidity memory-safe-assembly
assembly {
let ownerSlot := _OWNER_SLOT
// Clean the upper 96 bits.
newOwner := shr(96, shl(96, newOwner))
// Emit the {OwnershipTransferred} event.
log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, sload(ownerSlot), newOwner)
// Store the new value.
sstore(ownerSlot, or(newOwner, shl(255, iszero(newOwner))))
}
} else {
/// @solidity memory-safe-assembly
assembly {
let ownerSlot := _OWNER_SLOT
// Clean the upper 96 bits.
newOwner := shr(96, shl(96, newOwner))
// Emit the {OwnershipTransferred} event.
log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, sload(ownerSlot), newOwner)
// Store the new value.
sstore(ownerSlot, newOwner)
}
}
}
/// @dev Throws if the sender is not the owner.
function _checkOwner() internal view virtual {
/// @solidity memory-safe-assembly
assembly {
// If the caller is not the stored owner, revert.
if iszero(eq(caller(), sload(_OWNER_SLOT))) {
mstore(0x00, 0x82b42900) // `Unauthorized()`.
revert(0x1c, 0x04)
}
}
}
/// @dev Returns how long a two-step ownership handover is valid for in seconds.
/// Override to return a different value if needed.
/// Made internal to conserve bytecode. Wrap it in a public function if needed.
function _ownershipHandoverValidFor() internal view virtual returns (uint64) {
return 48 * 3600;
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* PUBLIC UPDATE FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Allows the owner to transfer the ownership to `newOwner`.
function transferOwnership(address newOwner) public payable virtual onlyOwner {
/// @solidity memory-safe-assembly
assembly {
if iszero(shl(96, newOwner)) {
mstore(0x00, 0x7448fbae) // `NewOwnerIsZeroAddress()`.
revert(0x1c, 0x04)
}
}
_setOwner(newOwner);
}
/// @dev Allows the owner to renounce their ownership.
function renounceOwnership() public payable virtual onlyOwner {
_setOwner(address(0));
}
/// @dev Request a two-step ownership handover to the caller.
/// The request will automatically expire in 48 hours (172800 seconds) by default.
function requestOwnershipHandover() public payable virtual {
unchecked {
uint256 expires = block.timestamp + _ownershipHandoverValidFor();
/// @solidity memory-safe-assembly
assembly {
// Compute and set the handover slot to `expires`.
mstore(0x0c, _HANDOVER_SLOT_SEED)
mstore(0x00, caller())
sstore(keccak256(0x0c, 0x20), expires)
// Emit the {OwnershipHandoverRequested} event.
log2(0, 0, _OWNERSHIP_HANDOVER_REQUESTED_EVENT_SIGNATURE, caller())
}
}
}
/// @dev Cancels the two-step ownership handover to the caller, if any.
function cancelOwnershipHandover() public payable virtual {
/// @solidity memory-safe-assembly
assembly {
// Compute and set the handover slot to 0.
mstore(0x0c, _HANDOVER_SLOT_SEED)
mstore(0x00, caller())
sstore(keccak256(0x0c, 0x20), 0)
// Emit the {OwnershipHandoverCanceled} event.
log2(0, 0, _OWNERSHIP_HANDOVER_CANCELED_EVENT_SIGNATURE, caller())
}
}
/// @dev Allows the owner to complete the two-step ownership handover to `pendingOwner`.
/// Reverts if there is no existing ownership handover requested by `pendingOwner`.
function completeOwnershipHandover(address pendingOwner) public payable virtual onlyOwner {
/// @solidity memory-safe-assembly
assembly {
// Compute and set the handover slot to 0.
mstore(0x0c, _HANDOVER_SLOT_SEED)
mstore(0x00, pendingOwner)
let handoverSlot := keccak256(0x0c, 0x20)
// If the handover does not exist, or has expired.
if gt(timestamp(), sload(handoverSlot)) {
mstore(0x00, 0x6f5e8818) // `NoHandoverRequest()`.
revert(0x1c, 0x04)
}
// Set the handover slot to 0.
sstore(handoverSlot, 0)
}
_setOwner(pendingOwner);
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* PUBLIC READ FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the owner of the contract.
function owner() public view virtual returns (address result) {
/// @solidity memory-safe-assembly
assembly {
result := sload(_OWNER_SLOT)
}
}
/// @dev Returns the expiry timestamp for the two-step ownership handover to `pendingOwner`.
function ownershipHandoverExpiresAt(address pendingOwner)
public
view
virtual
returns (uint256 result)
{
/// @solidity memory-safe-assembly
assembly {
// Compute the handover slot.
mstore(0x0c, _HANDOVER_SLOT_SEED)
mstore(0x00, pendingOwner)
// Load the handover slot.
result := sload(keccak256(0x0c, 0x20))
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* MODIFIERS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Marks a function as only callable by the owner.
modifier onlyOwner() virtual {
_checkOwner();
_;
}
}// SPDX-License-Identifier: MIT
pragma solidity 0.8.28;
struct CollectionConfig {
uint32 baseCollectionChainId;
uint32 baseCollectionEid;
uint32 baseCollectionPerNftOwnershipUpdateCost; // cost of transferring an NFT from the base collection. If 0, default of 100_000 is used
address shadowAddress; // Local shadow address for this chain
}{
"remappings": [
"solady/=lib/solady/src/",
"@layerzerolabs/=node_modules/@layerzerolabs/",
"@openzeppelin/=node_modules/@openzeppelin/",
"solidity-bytes-utils/=node_modules/solidity-bytes-utils/",
"forge-std/=lib/forge-std/src/"
],
"optimizer": {
"enabled": true,
"runs": 200
},
"metadata": {
"useLiteralContent": false,
"bytecodeHash": "ipfs",
"appendCBOR": true
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"abi"
]
}
},
"evmVersion": "cancun",
"viaIR": false,
"libraries": {}
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
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,{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"guid","type":"bytes32"}],"name":"callbacks","outputs":[{"internalType":"address","name":"callbackTarget","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"cancelOwnershipHandover","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"pendingOwner","type":"address"}],"name":"completeOwnershipHandover","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"enableShadowMode","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"guid","type":"bytes32"}],"name":"executeCallback","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"result","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTransferValidationFunction","outputs":[{"internalType":"bytes4","name":"functionSignature","type":"bytes4"},{"internalType":"bool","name":"isViewFunction","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"getTransferValidator","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"roles","type":"uint256"}],"name":"grantRoles","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"roles","type":"uint256"}],"name":"hasAllRoles","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"roles","type":"uint256"}],"name":"hasAnyRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_initialOwner","type":"address"},{"internalType":"string","name":"_collectionName","type":"string"},{"internalType":"string","name":"_collectionSymbol","type":"string"},{"internalType":"string","name":"_baseTokenURI","type":"string"},{"internalType":"address","name":"_metadataRenderer","type":"address"},{"internalType":"address","name":"_transferValidator","type":"address"},{"internalType":"uint96","name":"_royaltyFeeNumerator","type":"uint96"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"result","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"locked","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"metadataRenderer","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"result","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"result","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"pendingOwner","type":"address"}],"name":"ownershipHandoverExpiresAt","outputs":[{"internalType":"uint256","name":"result","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"},{"internalType":"uint32[]","name":"eids","type":"uint32[]"}],"name":"read","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"},{"internalType":"uint32[]","name":"eids","type":"uint32[]"},{"internalType":"uint128","name":"callbackGasLimit","type":"uint128"}],"name":"readWithCallback","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"roles","type":"uint256"}],"name":"renounceRoles","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"requestOwnershipHandover","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"roles","type":"uint256"}],"name":"revokeRoles","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"rolesOf","outputs":[{"internalType":"uint256","name":"roles","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"salePrice","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"royaltyAmount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"id","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"id","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint32","name":"dstEid","type":"uint32"},{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"},{"internalType":"address","name":"beneficiary","type":"address"},{"internalType":"address","name":"refundRecipient","type":"address"},{"internalType":"uint128","name":"supplementalGasLimit","type":"uint128"}],"name":"send","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"isApproved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_metadataRenderer","type":"address"}],"name":"setMetadataRenderer","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint96","name":"feeNumerator","type":"uint96"}],"name":"setRoyaltyInfo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"uri","type":"string"}],"name":"setTokenURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"transferValidator_","type":"address"}],"name":"setTransferValidator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"shadowModeEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","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":"id","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"start","type":"uint256"},{"internalType":"uint256","name":"stop","type":"uint256"}],"name":"tokensOfOwnerIn","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"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":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"transferValidator","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]Contract Creation Code
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Swarm Source
ipfs://612dc5058916d3fa4ed3e1217ccfdeaf8b2b3791dbcb7ba4e6c95b348c2b201d
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