Source Code
Overview
ETH Balance
0 ETH
ETH Value
$0.00More Info
Private Name Tags
ContractCreator
TokenTracker
Latest 25 from a total of 54 transactions
| Transaction Hash |
|
Block
|
From
|
To
|
|||||
|---|---|---|---|---|---|---|---|---|---|
| Set Approval For... | 35632966 | 5 days ago | IN | 0 ETH | 0.0000049 | ||||
| Set Approval For... | 35632314 | 5 days ago | IN | 0 ETH | 0.00000432 | ||||
| Set Approval For... | 35606307 | 5 days ago | IN | 0 ETH | 0.00000563 | ||||
| Safe Transfer Fr... | 35098020 | 9 days ago | IN | 0 ETH | 0.00000592 | ||||
| Safe Transfer Fr... | 31294669 | 37 days ago | IN | 0 ETH | 0.00000573 | ||||
| Safe Transfer Fr... | 27267407 | 59 days ago | IN | 0 ETH | 0.00000573 | ||||
| Set Approval For... | 27024410 | 61 days ago | IN | 0 ETH | 0.0000047 | ||||
| Safe Transfer Fr... | 26304922 | 65 days ago | IN | 0 ETH | 0.00000597 | ||||
| Safe Transfer Fr... | 26303702 | 65 days ago | IN | 0 ETH | 0.00000452 | ||||
| Set Approval For... | 26296650 | 65 days ago | IN | 0 ETH | 0.00000498 | ||||
| Set Approval For... | 26285274 | 65 days ago | IN | 0 ETH | 0.00000434 | ||||
| Safe Transfer Fr... | 26268207 | 65 days ago | IN | 0 ETH | 0.00000574 | ||||
| Set Approval For... | 26119932 | 66 days ago | IN | 0 ETH | 0.00000492 | ||||
| Safe Transfer Fr... | 25549884 | 70 days ago | IN | 0 ETH | 0.00000592 | ||||
| Safe Transfer Fr... | 25515030 | 70 days ago | IN | 0 ETH | 0.00000592 | ||||
| Safe Transfer Fr... | 25448438 | 70 days ago | IN | 0 ETH | 0.00000486 | ||||
| Safe Transfer Fr... | 25448180 | 70 days ago | IN | 0 ETH | 0.00000592 | ||||
| Safe Transfer Fr... | 23844877 | 79 days ago | IN | 0 ETH | 0.0000062 | ||||
| Set Approval For... | 21427692 | 99 days ago | IN | 0 ETH | 0.00000489 | ||||
| Safe Transfer Fr... | 20823921 | 108 days ago | IN | 0 ETH | 0.00000574 | ||||
| Safe Transfer Fr... | 20808065 | 109 days ago | IN | 0 ETH | 0.00000434 | ||||
| Set Approval For... | 20753958 | 109 days ago | IN | 0 ETH | 0.00000467 | ||||
| Set Approval For... | 20731145 | 110 days ago | IN | 0 ETH | 0.0000051 | ||||
| Set Approval For... | 20604871 | 112 days ago | IN | 0 ETH | 0.00000471 | ||||
| Set Approval For... | 20510949 | 113 days ago | IN | 0 ETH | 0.00000435 |
Latest 1 internal transaction
Advanced mode:
| Parent Transaction Hash | Block | From | To | |||
|---|---|---|---|---|---|---|
| 17650904 | 154 days ago | Contract Creation | 0 ETH |
Cross-Chain Transactions
Loading...
Loading
This contract may be a proxy contract. Click on More Options and select Is this a proxy? to confirm and enable the "Read as Proxy" & "Write as Proxy" tabs.
Contract Name:
MetaSharksNFT
Compiler Version
v0.8.30+commit.73712a01
ZkSolc Version
v1.5.15
Optimization Enabled:
Yes with Mode 3
Other Settings:
prague EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
import {ERC721} from "./@openzeppelin/contracts/token/ERC721/ERC721.sol";
import {ERC721Burnable} from "./@openzeppelin/contracts/token/ERC721/extensions/ERC721Burnable.sol";
import {ERC721Pausable} from "./@openzeppelin/contracts/token/ERC721/extensions/ERC721Pausable.sol";
import {Math} from "./@openzeppelin/contracts/utils/math/Math.sol";
import {Ownable} from "./solady/src/auth/Ownable.sol";
import {LibString} from "./solady/src/utils/LibString.sol";
import {MerkleProofLib} from "./solady/src/utils/MerkleProofLib.sol";
import {ReentrancyGuard} from "./solady/src/utils/ReentrancyGuard.sol";
import {
ERC721AQueryable, IERC721AQueryable, ERC721A, IERC721A
} from "./erc721a/contracts/extensions/ERC721AQueryable.sol";
import {ERC2981} from "./solady/src/tokens/ERC2981.sol";
import {ERC721ABurnable} from "./erc721a/contracts/extensions/ERC721ABurnable.sol";
/**
* @title MetaSharksNFT
* @author (Ak | byencrypt) https://byencrypt.com
*/
contract MetaSharksNFT is Ownable,ERC721AQueryable,ERC721ABurnable, ReentrancyGuard, ERC2981 {
using LibString for uint256;
using Math for uint256;
/// @notice Max supply for the collection
uint256 public maxSupply;
/// @notice BaseURI for metadata
string public baseURI;
/// @notice metadata url suffix
string public _baseTokenSuffix;
/// @notice nft metadata revealed
bool public isRevealed;
event MetadataUpdate(uint256 _tokenId);
event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId);
modifier withinThreshold(uint256 _amount) {
require(totalSupply() + _amount < maxSupply, "!supply");
_;
}
constructor(
string memory _uri,
address _owner,
address _royaltiesReceiver
)
ERC721A("MetaSharksNFT", "MS")
ERC2981()
{
_initializeOwner(_owner);
baseURI = _uri;
_setDefaultRoyalty(_royaltiesReceiver, 500);
maxSupply = 3337;
isRevealed = true;
}
/**
* @notice Airdrop NFTs
* @param _receiver The receiver of the airdrop
* @param _amount The amount of nft to receive
*/
function airdrop(address _receiver, uint256 _amount) public withinThreshold(_amount) onlyOwner {
_mint(_receiver, _amount);
}
/**
* @notice Batch Airdrop NFTs
* @param _receivers addresses of receivers
*/
function batchAirdrop(address[] calldata _receivers) public withinThreshold(_receivers.length) onlyOwner {
uint256 _supplyBefore = totalSupply();
for(uint256 i=0;i<_receivers.length;++i) {
if (_receivers[i] == address(0)) {
_mint(owner(), 1);
} else {
_mint(_receivers[i], 1);
}
}
emit BatchMetadataUpdate(_supplyBefore, totalSupply());
}
/**
* @notice Set base uri
* @param _uri The base uri
*/
function setBaseURI(string memory _uri) external onlyOwner {
baseURI = _uri;
emit BatchMetadataUpdate(_startTokenId(), totalSupply());
}
/**
* @notice Set base uri suffix
* @param _new_suffix New token suffix
*/
function setBaseTokenSuffix(string memory _new_suffix) external onlyOwner {
_baseTokenSuffix = _new_suffix;
emit BatchMetadataUpdate(_startTokenId(), totalSupply());
}
/**
* @notice Sets the collection max supply
* @param _maxSupply The max supply of the collection
*/
function setMaxSupply(uint256 _maxSupply) external onlyOwner {
maxSupply = _maxSupply;
}
function _startTokenId() internal view virtual override returns (uint256) {
return 0;
}
function _baseURI() internal view override returns (string memory) {
return baseURI;
}
/**
* @notice Set isRevealed
* @param _reveal bool
*/
function setIsRevealed(
bool _reveal
) external onlyOwner {
isRevealed = _reveal;
}
function tokenURI(
uint256 tokenId
)
public
view
virtual
override(IERC721A, ERC721A)
returns (string memory)
{
if (!_exists(tokenId)) revert URIQueryForNonexistentToken();
string memory uri = _baseURI();
if(!isRevealed) {
return uri;
}
return
bytes(uri).length > 0
? string(abi.encodePacked(uri, tokenId.toString(), _baseTokenSuffix))
: "";
}
function supportsInterface(
bytes4 interfaceId
)
public
view
virtual
override(IERC721A, ERC721A, ERC2981)
returns (bool)
{
return
ERC721A.supportsInterface(interfaceId) ||
ERC2981.supportsInterface(interfaceId) ||
interfaceId == 0x49064906; // IERC4906
}
/**
* @notice Set Default Royalty
* @param _receiver The receiver of the royalty
* @param _amount The numerator of the royalty (1000 = 10%)
*/
function setDefaultRoyalty(
address payable _receiver,
uint96 _amount
) public onlyOwner {
_setDefaultRoyalty(_receiver, _amount);
}
// /**
// * @notice Withdraw funds
// * @param _to The receiver of the funds
// */
// function withdraw(address payable _to) external onlyOwner {
// _to.transfer(address(this).balance);
// }
/**
* @notice Withdraw funds
* @param _to The receiver of the funds
*/
function withdraw(address payable _to) external onlyOwner {
(bool success, ) = _to.call{value: address(this).balance}("");
require(success, "Withdraw failed");
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/ERC721.sol)
pragma solidity ^0.8.0;
import "./IERC721.sol";
import "./IERC721Receiver.sol";
import "./extensions/IERC721Metadata.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/Strings.sol";
import "../../utils/introspection/ERC165.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
using Address for address;
using Strings for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to owner address
mapping(uint256 => address) private _owners;
// Mapping owner address to token count
mapping(address => uint256) private _balances;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: address zero is not a valid owner");
return _balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _ownerOf(tokenId);
require(owner != address(0), "ERC721: invalid token ID");
return owner;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
_requireMinted(tokenId);
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overridden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ERC721.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not token owner or approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
_requireMinted(tokenId);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(address from, address to, uint256 tokenId) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_safeTransfer(from, to, tokenId, data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(address from, address to, uint256 tokenId, bytes memory data) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist
*/
function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
return _owners[tokenId];
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _ownerOf(tokenId) != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
address owner = ERC721.ownerOf(tokenId);
return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(address to, uint256 tokenId, bytes memory data) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId, 1);
// Check that tokenId was not minted by `_beforeTokenTransfer` hook
require(!_exists(tokenId), "ERC721: token already minted");
unchecked {
// Will not overflow unless all 2**256 token ids are minted to the same owner.
// Given that tokens are minted one by one, it is impossible in practice that
// this ever happens. Might change if we allow batch minting.
// The ERC fails to describe this case.
_balances[to] += 1;
}
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
_afterTokenTransfer(address(0), to, tokenId, 1);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
* This is an internal function that does not check if the sender is authorized to operate on the token.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId, 1);
// Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook
owner = ERC721.ownerOf(tokenId);
// Clear approvals
delete _tokenApprovals[tokenId];
unchecked {
// Cannot overflow, as that would require more tokens to be burned/transferred
// out than the owner initially received through minting and transferring in.
_balances[owner] -= 1;
}
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
_afterTokenTransfer(owner, address(0), tokenId, 1);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(address from, address to, uint256 tokenId) internal virtual {
require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId, 1);
// Check that tokenId was not transferred by `_beforeTokenTransfer` hook
require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
// Clear approvals from the previous owner
delete _tokenApprovals[tokenId];
unchecked {
// `_balances[from]` cannot overflow for the same reason as described in `_burn`:
// `from`'s balance is the number of token held, which is at least one before the current
// transfer.
// `_balances[to]` could overflow in the conditions described in `_mint`. That would require
// all 2**256 token ids to be minted, which in practice is impossible.
_balances[from] -= 1;
_balances[to] += 1;
}
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
_afterTokenTransfer(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits an {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
}
/**
* @dev Approve `operator` to operate on all of `owner` tokens
*
* Emits an {ApprovalForAll} event.
*/
function _setApprovalForAll(address owner, address operator, bool approved) internal virtual {
require(owner != operator, "ERC721: approve to caller");
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
/**
* @dev Reverts if the `tokenId` has not been minted yet.
*/
function _requireMinted(uint256 tokenId) internal view virtual {
require(_exists(tokenId), "ERC721: invalid token ID");
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory data
) private returns (bool) {
if (to.isContract()) {
try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {
return retval == IERC721Receiver.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721: transfer to non ERC721Receiver implementer");
} else {
/// @solidity memory-safe-assembly
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is
* used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.
* - When `from` is zero, the tokens will be minted for `to`.
* - When `to` is zero, ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
* - `batchSize` is non-zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}
/**
* @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is
* used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.
* - When `from` is zero, the tokens were minted for `to`.
* - When `to` is zero, ``from``'s tokens were burned.
* - `from` and `to` are never both zero.
* - `batchSize` is non-zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}
/**
* @dev Unsafe write access to the balances, used by extensions that "mint" tokens using an {ownerOf} override.
*
* WARNING: Anyone calling this MUST ensure that the balances remain consistent with the ownership. The invariant
* being that for any address `a` the value returned by `balanceOf(a)` must be equal to the number of tokens such
* that `ownerOf(tokenId)` is `a`.
*/
// solhint-disable-next-line func-name-mixedcase
function __unsafe_increaseBalance(address account, uint256 amount) internal {
_balances[account] += amount;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Burnable.sol)
pragma solidity ^0.8.0;
import "../ERC721.sol";
import "../../../utils/Context.sol";
/**
* @title ERC721 Burnable Token
* @dev ERC721 Token that can be burned (destroyed).
*/
abstract contract ERC721Burnable is Context, ERC721 {
/**
* @dev Burns `tokenId`. See {ERC721-_burn}.
*
* Requirements:
*
* - The caller must own `tokenId` or be an approved operator.
*/
function burn(uint256 tokenId) public virtual {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_burn(tokenId);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.2) (token/ERC721/extensions/ERC721Pausable.sol)
pragma solidity ^0.8.0;
import "../ERC721.sol";
import "../../../security/Pausable.sol";
/**
* @dev ERC721 token with pausable token transfers, minting and burning.
*
* Useful for scenarios such as preventing trades until the end of an evaluation
* period, or having an emergency switch for freezing all token transfers in the
* event of a large bug.
*
* IMPORTANT: This contract does not include public pause and unpause functions. In
* addition to inheriting this contract, you must define both functions, invoking the
* {Pausable-_pause} and {Pausable-_unpause} internal functions, with appropriate
* access control, e.g. using {AccessControl} or {Ownable}. Not doing so will
* make the contract unpausable.
*/
abstract contract ERC721Pausable is ERC721, Pausable {
/**
* @dev See {ERC721-_beforeTokenTransfer}.
*
* Requirements:
*
* - the contract must not be paused.
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 firstTokenId,
uint256 batchSize
) internal virtual override {
super._beforeTokenTransfer(from, to, firstTokenId, batchSize);
require(!paused(), "ERC721Pausable: token transfer while paused");
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)
pragma solidity ^0.8.0;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library Math {
enum Rounding {
Down, // Toward negative infinity
Up, // Toward infinity
Zero // Toward zero
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two numbers. The result is rounded towards
* zero.
*/
function average(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b) / 2 can overflow.
return (a & b) + (a ^ b) / 2;
}
/**
* @dev Returns the ceiling of the division of two numbers.
*
* This differs from standard division with `/` in that it rounds up instead
* of rounding down.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b - 1) / b can overflow on addition, so we distribute.
return a == 0 ? 0 : (a - 1) / b + 1;
}
/**
* @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
* @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
* with further edits by Uniswap Labs also under MIT license.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
unchecked {
// 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
// use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2^256 + prod0.
uint256 prod0; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(x, y, not(0))
prod0 := mul(x, y)
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division.
if (prod1 == 0) {
// Solidity will revert if denominator == 0, unlike the div opcode on its own.
// The surrounding unchecked block does not change this fact.
// See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
return prod0 / denominator;
}
// Make sure the result is less than 2^256. Also prevents denominator == 0.
require(denominator > prod1, "Math: mulDiv overflow");
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0].
uint256 remainder;
assembly {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
// See https://cs.stackexchange.com/q/138556/92363.
// Does not overflow because the denominator cannot be zero at this stage in the function.
uint256 twos = denominator & (~denominator + 1);
assembly {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [prod1 prod0] by twos.
prod0 := div(prod0, twos)
// Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from prod1 into prod0.
prod0 |= prod1 * twos;
// Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
// that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv = 1 mod 2^4.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
// in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2^8
inverse *= 2 - denominator * inverse; // inverse mod 2^16
inverse *= 2 - denominator * inverse; // inverse mod 2^32
inverse *= 2 - denominator * inverse; // inverse mod 2^64
inverse *= 2 - denominator * inverse; // inverse mod 2^128
inverse *= 2 - denominator * inverse; // inverse mod 2^256
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
// less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inverse;
return result;
}
}
/**
* @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
*
* Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
*/
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
// For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
//
// We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
// `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
//
// This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
// → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
// → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
//
// Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
uint256 result = 1 << (log2(a) >> 1);
// At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
// since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
// every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
// into the expected uint128 result.
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
/**
* @notice Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
}
}
/**
* @dev Return the log in base 2, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 2, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 10, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10 ** 64) {
value /= 10 ** 64;
result += 64;
}
if (value >= 10 ** 32) {
value /= 10 ** 32;
result += 32;
}
if (value >= 10 ** 16) {
value /= 10 ** 16;
result += 16;
}
if (value >= 10 ** 8) {
value /= 10 ** 8;
result += 8;
}
if (value >= 10 ** 4) {
value /= 10 ** 4;
result += 4;
}
if (value >= 10 ** 2) {
value /= 10 ** 2;
result += 2;
}
if (value >= 10 ** 1) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 256, rounded down, of a positive value.
* Returns 0 if given 0.
*
* Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
*/
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 256, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
}
}
}// 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 ^0.8.4;
import {LibBytes} from "./LibBytes.sol";
/// @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 {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* STRUCTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Goated string storage struct that totally MOGs, no cap, fr.
/// Uses less gas and bytecode than Solidity's native string storage. It's meta af.
/// Packs length with the first 31 bytes if <255 bytes, so it’s mad tight.
struct StringStorage {
bytes32 _spacer;
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* 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 '!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~'.
uint128 internal constant PUNCTUATION_7_BIT_ASCII = 0x78000001f8000001fc00fffe00000000;
/// @dev Lookup for ' \t\n\r\x0b\x0c'.
uint128 internal constant WHITESPACE_7_BIT_ASCII = 0x100003e00;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* STRING STORAGE OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Sets the value of the string storage `$` to `s`.
function set(StringStorage storage $, string memory s) internal {
LibBytes.set(bytesStorage($), bytes(s));
}
/// @dev Sets the value of the string storage `$` to `s`.
function setCalldata(StringStorage storage $, string calldata s) internal {
LibBytes.setCalldata(bytesStorage($), bytes(s));
}
/// @dev Sets the value of the string storage `$` to the empty string.
function clear(StringStorage storage $) internal {
delete $._spacer;
}
/// @dev Returns whether the value stored is `$` is the empty string "".
function isEmpty(StringStorage storage $) internal view returns (bool) {
return uint256($._spacer) & 0xff == uint256(0);
}
/// @dev Returns the length of the value stored in `$`.
function length(StringStorage storage $) internal view returns (uint256) {
return LibBytes.length(bytesStorage($));
}
/// @dev Returns the value stored in `$`.
function get(StringStorage storage $) internal view returns (string memory) {
return string(LibBytes.get(bytesStorage($)));
}
/// @dev Helper to cast `$` to a `BytesStorage`.
function bytesStorage(StringStorage storage $)
internal
pure
returns (LibBytes.BytesStorage storage casted)
{
/// @solidity memory-safe-assembly
assembly {
casted.slot := $.slot
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* 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 `byteCount` bytes.
/// The output is prefixed with "0x" encoded using 2 hexadecimal digits per byte,
/// giving a total length of `byteCount * 2 + 2` bytes.
/// Reverts if `byteCount` is too small for the output to contain all the digits.
function toHexString(uint256 value, uint256 byteCount)
internal
pure
returns (string memory result)
{
result = toHexStringNoPrefix(value, byteCount);
/// @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 `byteCount` bytes.
/// The output is not prefixed with "0x" and is encoded using 2 hexadecimal digits per byte,
/// giving a total length of `byteCount * 2` bytes.
/// Reverts if `byteCount` is too small for the output to contain all the digits.
function toHexStringNoPrefix(uint256 value, uint256 byteCount)
internal
pure
returns (string memory result)
{
/// @solidity memory-safe-assembly
assembly {
// We need 0x20 bytes for the trailing zeros padding, `byteCount * 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, byteCount), 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(byteCount, byteCount))
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)
{
return string(LibBytes.replace(bytes(subject), bytes(needle), bytes(replacement)));
}
/// @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)
{
return LibBytes.indexOf(bytes(subject), bytes(needle), from);
}
/// @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) {
return LibBytes.indexOf(bytes(subject), bytes(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)
{
return LibBytes.lastIndexOf(bytes(subject), bytes(needle), from);
}
/// @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)
{
return LibBytes.lastIndexOf(bytes(subject), bytes(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 LibBytes.contains(bytes(subject), bytes(needle));
}
/// @dev Returns whether `subject` starts with `needle`.
function startsWith(string memory subject, string memory needle) internal pure returns (bool) {
return LibBytes.startsWith(bytes(subject), bytes(needle));
}
/// @dev Returns whether `subject` ends with `needle`.
function endsWith(string memory subject, string memory needle) internal pure returns (bool) {
return LibBytes.endsWith(bytes(subject), bytes(needle));
}
/// @dev Returns `subject` repeated `times`.
function repeat(string memory subject, uint256 times) internal pure returns (string memory) {
return string(LibBytes.repeat(bytes(subject), times));
}
/// @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)
{
return string(LibBytes.slice(bytes(subject), start, end));
}
/// @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) {
return string(LibBytes.slice(bytes(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)
{
return LibBytes.indicesOf(bytes(subject), bytes(needle));
}
/// @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)
{
bytes[] memory a = LibBytes.split(bytes(subject), bytes(delimiter));
/// @solidity memory-safe-assembly
assembly {
result := a
}
}
/// @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) {
return string(LibBytes.concat(bytes(a), bytes(b)));
}
/// @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 Returns 0 if `a == b`, -1 if `a < b`, +1 if `a > b`.
/// If `a` == b[:a.length]`, and `a.length < b.length`, returns -1.
function cmp(string memory a, string memory b) internal pure returns (int256) {
return LibBytes.cmp(bytes(a), bytes(b));
}
/// @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 {
/// @solidity memory-safe-assembly
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;
/// @notice Gas optimized verification of proof of inclusion for a leaf in a Merkle tree.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/MerkleProofLib.sol)
/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/MerkleProofLib.sol)
/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/cryptography/MerkleProof.sol)
library MerkleProofLib {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* MERKLE PROOF VERIFICATION OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns whether `leaf` exists in the Merkle tree with `root`, given `proof`.
function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf)
internal
pure
returns (bool isValid)
{
/// @solidity memory-safe-assembly
assembly {
if mload(proof) {
// Initialize `offset` to the offset of `proof` elements in memory.
let offset := add(proof, 0x20)
// Left shift by 5 is equivalent to multiplying by 0x20.
let end := add(offset, shl(5, mload(proof)))
// Iterate over proof elements to compute root hash.
for {} 1 {} {
// Slot of `leaf` in scratch space.
// If the condition is true: 0x20, otherwise: 0x00.
let scratch := shl(5, gt(leaf, mload(offset)))
// Store elements to hash contiguously in scratch space.
// Scratch space is 64 bytes (0x00 - 0x3f) and both elements are 32 bytes.
mstore(scratch, leaf)
mstore(xor(scratch, 0x20), mload(offset))
// Reuse `leaf` to store the hash to reduce stack operations.
leaf := keccak256(0x00, 0x40)
offset := add(offset, 0x20)
if iszero(lt(offset, end)) { break }
}
}
isValid := eq(leaf, root)
}
}
/// @dev Returns whether `leaf` exists in the Merkle tree with `root`, given `proof`.
function verifyCalldata(bytes32[] calldata proof, bytes32 root, bytes32 leaf)
internal
pure
returns (bool isValid)
{
/// @solidity memory-safe-assembly
assembly {
if proof.length {
// Left shift by 5 is equivalent to multiplying by 0x20.
let end := add(proof.offset, shl(5, proof.length))
// Initialize `offset` to the offset of `proof` in the calldata.
let offset := proof.offset
// Iterate over proof elements to compute root hash.
for {} 1 {} {
// Slot of `leaf` in scratch space.
// If the condition is true: 0x20, otherwise: 0x00.
let scratch := shl(5, gt(leaf, calldataload(offset)))
// Store elements to hash contiguously in scratch space.
// Scratch space is 64 bytes (0x00 - 0x3f) and both elements are 32 bytes.
mstore(scratch, leaf)
mstore(xor(scratch, 0x20), calldataload(offset))
// Reuse `leaf` to store the hash to reduce stack operations.
leaf := keccak256(0x00, 0x40)
offset := add(offset, 0x20)
if iszero(lt(offset, end)) { break }
}
}
isValid := eq(leaf, root)
}
}
/// @dev Returns whether all `leaves` exist in the Merkle tree with `root`,
/// given `proof` and `flags`.
///
/// Note:
/// - Breaking the invariant `flags.length == (leaves.length - 1) + proof.length`
/// will always return false.
/// - The sum of the lengths of `proof` and `leaves` must never overflow.
/// - Any non-zero word in the `flags` array is treated as true.
/// - The memory offset of `proof` must be non-zero
/// (i.e. `proof` is not pointing to the scratch space).
function verifyMultiProof(
bytes32[] memory proof,
bytes32 root,
bytes32[] memory leaves,
bool[] memory flags
) internal pure returns (bool isValid) {
// Rebuilds the root by consuming and producing values on a queue.
// The queue starts with the `leaves` array, and goes into a `hashes` array.
// After the process, the last element on the queue is verified
// to be equal to the `root`.
//
// The `flags` array denotes whether the sibling
// should be popped from the queue (`flag == true`), or
// should be popped from the `proof` (`flag == false`).
/// @solidity memory-safe-assembly
assembly {
// Cache the lengths of the arrays.
let leavesLength := mload(leaves)
let proofLength := mload(proof)
let flagsLength := mload(flags)
// Advance the pointers of the arrays to point to the data.
leaves := add(0x20, leaves)
proof := add(0x20, proof)
flags := add(0x20, flags)
// If the number of flags is correct.
for {} eq(add(leavesLength, proofLength), add(flagsLength, 1)) {} {
// For the case where `proof.length + leaves.length == 1`.
if iszero(flagsLength) {
// `isValid = (proof.length == 1 ? proof[0] : leaves[0]) == root`.
isValid := eq(mload(xor(leaves, mul(xor(proof, leaves), proofLength))), root)
break
}
// The required final proof offset if `flagsLength` is not zero, otherwise zero.
let proofEnd := add(proof, shl(5, proofLength))
// We can use the free memory space for the queue.
// We don't need to allocate, since the queue is temporary.
let hashesFront := mload(0x40)
// Copy the leaves into the hashes.
// Sometimes, a little memory expansion costs less than branching.
// Should cost less, even with a high free memory offset of 0x7d00.
leavesLength := shl(5, leavesLength)
for { let i := 0 } iszero(eq(i, leavesLength)) { i := add(i, 0x20) } {
mstore(add(hashesFront, i), mload(add(leaves, i)))
}
// Compute the back of the hashes.
let hashesBack := add(hashesFront, leavesLength)
// This is the end of the memory for the queue.
// We recycle `flagsLength` to save on stack variables (sometimes save gas).
flagsLength := add(hashesBack, shl(5, flagsLength))
for {} 1 {} {
// Pop from `hashes`.
let a := mload(hashesFront)
// Pop from `hashes`.
let b := mload(add(hashesFront, 0x20))
hashesFront := add(hashesFront, 0x40)
// If the flag is false, load the next proof,
// else, pops from the queue.
if iszero(mload(flags)) {
// Loads the next proof.
b := mload(proof)
proof := add(proof, 0x20)
// Unpop from `hashes`.
hashesFront := sub(hashesFront, 0x20)
}
// Advance to the next flag.
flags := add(flags, 0x20)
// Slot of `a` in scratch space.
// If the condition is true: 0x20, otherwise: 0x00.
let scratch := shl(5, gt(a, b))
// Hash the scratch space and push the result onto the queue.
mstore(scratch, a)
mstore(xor(scratch, 0x20), b)
mstore(hashesBack, keccak256(0x00, 0x40))
hashesBack := add(hashesBack, 0x20)
if iszero(lt(hashesBack, flagsLength)) { break }
}
isValid :=
and(
// Checks if the last value in the queue is same as the root.
eq(mload(sub(hashesBack, 0x20)), root),
// And whether all the proofs are used, if required.
eq(proofEnd, proof)
)
break
}
}
}
/// @dev Returns whether all `leaves` exist in the Merkle tree with `root`,
/// given `proof` and `flags`.
///
/// Note:
/// - Breaking the invariant `flags.length == (leaves.length - 1) + proof.length`
/// will always return false.
/// - Any non-zero word in the `flags` array is treated as true.
/// - The calldata offset of `proof` must be non-zero
/// (i.e. `proof` is from a regular Solidity function with a 4-byte selector).
function verifyMultiProofCalldata(
bytes32[] calldata proof,
bytes32 root,
bytes32[] calldata leaves,
bool[] calldata flags
) internal pure returns (bool isValid) {
// Rebuilds the root by consuming and producing values on a queue.
// The queue starts with the `leaves` array, and goes into a `hashes` array.
// After the process, the last element on the queue is verified
// to be equal to the `root`.
//
// The `flags` array denotes whether the sibling
// should be popped from the queue (`flag == true`), or
// should be popped from the `proof` (`flag == false`).
/// @solidity memory-safe-assembly
assembly {
// If the number of flags is correct.
for {} eq(add(leaves.length, proof.length), add(flags.length, 1)) {} {
// For the case where `proof.length + leaves.length == 1`.
if iszero(flags.length) {
// `isValid = (proof.length == 1 ? proof[0] : leaves[0]) == root`.
// forgefmt: disable-next-item
isValid := eq(
calldataload(
xor(leaves.offset, mul(xor(proof.offset, leaves.offset), proof.length))
),
root
)
break
}
// The required final proof offset if `flagsLength` is not zero, otherwise zero.
let proofEnd := add(proof.offset, shl(5, proof.length))
// We can use the free memory space for the queue.
// We don't need to allocate, since the queue is temporary.
let hashesFront := mload(0x40)
// Copy the leaves into the hashes.
// Sometimes, a little memory expansion costs less than branching.
// Should cost less, even with a high free memory offset of 0x7d00.
calldatacopy(hashesFront, leaves.offset, shl(5, leaves.length))
// Compute the back of the hashes.
let hashesBack := add(hashesFront, shl(5, leaves.length))
// This is the end of the memory for the queue.
// We recycle `flagsLength` to save on stack variables (sometimes save gas).
flags.length := add(hashesBack, shl(5, flags.length))
// We don't need to make a copy of `proof.offset` or `flags.offset`,
// as they are pass-by-value (this trick may not always save gas).
for {} 1 {} {
// Pop from `hashes`.
let a := mload(hashesFront)
// Pop from `hashes`.
let b := mload(add(hashesFront, 0x20))
hashesFront := add(hashesFront, 0x40)
// If the flag is false, load the next proof,
// else, pops from the queue.
if iszero(calldataload(flags.offset)) {
// Loads the next proof.
b := calldataload(proof.offset)
proof.offset := add(proof.offset, 0x20)
// Unpop from `hashes`.
hashesFront := sub(hashesFront, 0x20)
}
// Advance to the next flag offset.
flags.offset := add(flags.offset, 0x20)
// Slot of `a` in scratch space.
// If the condition is true: 0x20, otherwise: 0x00.
let scratch := shl(5, gt(a, b))
// Hash the scratch space and push the result onto the queue.
mstore(scratch, a)
mstore(xor(scratch, 0x20), b)
mstore(hashesBack, keccak256(0x00, 0x40))
hashesBack := add(hashesBack, 0x20)
if iszero(lt(hashesBack, flags.length)) { break }
}
isValid :=
and(
// Checks if the last value in the queue is same as the root.
eq(mload(sub(hashesBack, 0x20)), root),
// And whether all the proofs are used, if required.
eq(proofEnd, proof.offset)
)
break
}
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* EMPTY CALLDATA HELPERS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns an empty calldata bytes32 array.
function emptyProof() internal pure returns (bytes32[] calldata proof) {
/// @solidity memory-safe-assembly
assembly {
proof.length := 0
}
}
/// @dev Returns an empty calldata bytes32 array.
function emptyLeaves() internal pure returns (bytes32[] calldata leaves) {
/// @solidity memory-safe-assembly
assembly {
leaves.length := 0
}
}
/// @dev Returns an empty calldata bool array.
function emptyFlags() internal pure returns (bool[] calldata flags) {
/// @solidity memory-safe-assembly
assembly {
flags.length := 0
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @notice Reentrancy guard mixin.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/ReentrancyGuard.sol)
abstract contract ReentrancyGuard {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CUSTOM ERRORS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Unauthorized reentrant call.
error Reentrancy();
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* STORAGE */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Equivalent to: `uint72(bytes9(keccak256("_REENTRANCY_GUARD_SLOT")))`.
/// 9 bytes is large enough to avoid collisions with lower slots,
/// but not too large to result in excessive bytecode bloat.
uint256 private constant _REENTRANCY_GUARD_SLOT = 0x929eee149b4bd21268;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* REENTRANCY GUARD */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Guards a function from reentrancy.
modifier nonReentrant() virtual {
/// @solidity memory-safe-assembly
assembly {
if eq(sload(_REENTRANCY_GUARD_SLOT), address()) {
mstore(0x00, 0xab143c06) // `Reentrancy()`.
revert(0x1c, 0x04)
}
sstore(_REENTRANCY_GUARD_SLOT, address())
}
_;
/// @solidity memory-safe-assembly
assembly {
sstore(_REENTRANCY_GUARD_SLOT, codesize())
}
}
/// @dev Guards a view function from read-only reentrancy.
modifier nonReadReentrant() virtual {
/// @solidity memory-safe-assembly
assembly {
if eq(sload(_REENTRANCY_GUARD_SLOT), address()) {
mstore(0x00, 0xab143c06) // `Reentrancy()`.
revert(0x1c, 0x04)
}
}
_;
}
}// SPDX-License-Identifier: MIT
// ERC721A Contracts v4.3.0
// Creator: Chiru Labs
pragma solidity ^0.8.4;
import './IERC721AQueryable.sol';
import '../ERC721A.sol';
/**
* @title ERC721AQueryable.
*
* @dev ERC721A subclass with convenience query functions.
*/
abstract contract ERC721AQueryable is ERC721A, IERC721AQueryable {
/**
* @dev Returns the `TokenOwnership` struct at `tokenId` without reverting.
*
* If the `tokenId` is out of bounds:
*
* - `addr = address(0)`
* - `startTimestamp = 0`
* - `burned = false`
* - `extraData = 0`
*
* If the `tokenId` is burned:
*
* - `addr = <Address of owner before token was burned>`
* - `startTimestamp = <Timestamp when token was burned>`
* - `burned = true`
* - `extraData = <Extra data when token was burned>`
*
* Otherwise:
*
* - `addr = <Address of owner>`
* - `startTimestamp = <Timestamp of start of ownership>`
* - `burned = false`
* - `extraData = <Extra data at start of ownership>`
*/
function explicitOwnershipOf(uint256 tokenId)
public
view
virtual
override
returns (TokenOwnership memory ownership)
{
unchecked {
if (tokenId >= _startTokenId()) {
if (tokenId > _sequentialUpTo()) return _ownershipAt(tokenId);
if (tokenId < _nextTokenId()) {
// If the `tokenId` is within bounds,
// scan backwards for the initialized ownership slot.
while (!_ownershipIsInitialized(tokenId)) --tokenId;
return _ownershipAt(tokenId);
}
}
}
}
/**
* @dev Returns an array of `TokenOwnership` structs at `tokenIds` in order.
* See {ERC721AQueryable-explicitOwnershipOf}
*/
function explicitOwnershipsOf(uint256[] calldata tokenIds)
external
view
virtual
override
returns (TokenOwnership[] memory)
{
TokenOwnership[] memory ownerships;
uint256 i = tokenIds.length;
assembly {
// Grab the free memory pointer.
ownerships := mload(0x40)
// Store the length.
mstore(ownerships, i)
// Allocate one word for the length,
// `tokenIds.length` words for the pointers.
i := shl(5, i) // Multiply `i` by 32.
mstore(0x40, add(add(ownerships, 0x20), i))
}
while (i != 0) {
uint256 tokenId;
assembly {
i := sub(i, 0x20)
tokenId := calldataload(add(tokenIds.offset, i))
}
TokenOwnership memory ownership = explicitOwnershipOf(tokenId);
assembly {
// Store the pointer of `ownership` in the `ownerships` array.
mstore(add(add(ownerships, 0x20), i), ownership)
}
}
return ownerships;
}
/**
* @dev Returns an array of token IDs owned by `owner`,
* in the range [`start`, `stop`)
* (i.e. `start <= tokenId < stop`).
*
* This function allows for tokens to be queried if the collection
* grows too big for a single call of {ERC721AQueryable-tokensOfOwner}.
*
* Requirements:
*
* - `start < stop`
*/
function tokensOfOwnerIn(
address owner,
uint256 start,
uint256 stop
) external view virtual override returns (uint256[] memory) {
return _tokensOfOwnerIn(owner, start, stop);
}
/**
* @dev Returns an array of token IDs owned by `owner`.
*
* This function scans the ownership mapping and is O(`totalSupply`) in complexity.
* It is meant to be called off-chain.
*
* See {ERC721AQueryable-tokensOfOwnerIn} for splitting the scan into
* multiple smaller scans if the collection is large enough to cause
* an out-of-gas error (10K collections should be fine).
*/
function tokensOfOwner(address owner) external view virtual override returns (uint256[] memory) {
// If spot mints are enabled, full-range scan is disabled.
if (_sequentialUpTo() != type(uint256).max) _revert(NotCompatibleWithSpotMints.selector);
uint256 start = _startTokenId();
uint256 stop = _nextTokenId();
uint256[] memory tokenIds;
if (start != stop) tokenIds = _tokensOfOwnerIn(owner, start, stop);
return tokenIds;
}
/**
* @dev Helper function for returning an array of token IDs owned by `owner`.
*
* Note that this function is optimized for smaller bytecode size over runtime gas,
* since it is meant to be called off-chain.
*/
function _tokensOfOwnerIn(
address owner,
uint256 start,
uint256 stop
) private view returns (uint256[] memory tokenIds) {
unchecked {
if (start >= stop) _revert(InvalidQueryRange.selector);
// Set `start = max(start, _startTokenId())`.
if (start < _startTokenId()) start = _startTokenId();
uint256 nextTokenId = _nextTokenId();
// If spot mints are enabled, scan all the way until the specified `stop`.
uint256 stopLimit = _sequentialUpTo() != type(uint256).max ? stop : nextTokenId;
// Set `stop = min(stop, stopLimit)`.
if (stop >= stopLimit) stop = stopLimit;
// Number of tokens to scan.
uint256 tokenIdsMaxLength = balanceOf(owner);
// Set `tokenIdsMaxLength` to zero if the range contains no tokens.
if (start >= stop) tokenIdsMaxLength = 0;
// If there are one or more tokens to scan.
if (tokenIdsMaxLength != 0) {
// Set `tokenIdsMaxLength = min(balanceOf(owner), tokenIdsMaxLength)`.
if (stop - start <= tokenIdsMaxLength) tokenIdsMaxLength = stop - start;
uint256 m; // Start of available memory.
assembly {
// Grab the free memory pointer.
tokenIds := mload(0x40)
// Allocate one word for the length, and `tokenIdsMaxLength` words
// for the data. `shl(5, x)` is equivalent to `mul(32, x)`.
m := add(tokenIds, shl(5, add(tokenIdsMaxLength, 1)))
mstore(0x40, m)
}
// We need to call `explicitOwnershipOf(start)`,
// because the slot at `start` may not be initialized.
TokenOwnership memory ownership = explicitOwnershipOf(start);
address currOwnershipAddr;
// If the starting slot exists (i.e. not burned),
// initialize `currOwnershipAddr`.
// `ownership.address` will not be zero,
// as `start` is clamped to the valid token ID range.
if (!ownership.burned) currOwnershipAddr = ownership.addr;
uint256 tokenIdsIdx;
// Use a do-while, which is slightly more efficient for this case,
// as the array will at least contain one element.
do {
if (_sequentialUpTo() != type(uint256).max) {
// Skip the remaining unused sequential slots.
if (start == nextTokenId) start = _sequentialUpTo() + 1;
// Reset `currOwnershipAddr`, as each spot-minted token is a batch of one.
if (start > _sequentialUpTo()) currOwnershipAddr = address(0);
}
ownership = _ownershipAt(start); // This implicitly allocates memory.
assembly {
switch mload(add(ownership, 0x40))
// if `ownership.burned == false`.
case 0 {
// if `ownership.addr != address(0)`.
// The `addr` already has it's upper 96 bits clearned,
// since it is written to memory with regular Solidity.
if mload(ownership) {
currOwnershipAddr := mload(ownership)
}
// if `currOwnershipAddr == owner`.
// The `shl(96, x)` is to make the comparison agnostic to any
// dirty upper 96 bits in `owner`.
if iszero(shl(96, xor(currOwnershipAddr, owner))) {
tokenIdsIdx := add(tokenIdsIdx, 1)
mstore(add(tokenIds, shl(5, tokenIdsIdx)), start)
}
}
// Otherwise, reset `currOwnershipAddr`.
// This handles the case of batch burned tokens
// (burned bit of first slot set, remaining slots left uninitialized).
default {
currOwnershipAddr := 0
}
start := add(start, 1)
// Free temporary memory implicitly allocated for ownership
// to avoid quadratic memory expansion costs.
mstore(0x40, m)
}
} while (!(start == stop || tokenIdsIdx == tokenIdsMaxLength));
// Store the length of the array.
assembly {
mstore(tokenIds, tokenIdsIdx)
}
}
}
}
}// 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: MIT
// ERC721A Contracts v4.3.0
// Creator: Chiru Labs
pragma solidity ^0.8.4;
import './IERC721ABurnable.sol';
import '../ERC721A.sol';
/**
* @title ERC721ABurnable.
*
* @dev ERC721A token that can be irreversibly burned (destroyed).
*/
abstract contract ERC721ABurnable is ERC721A, IERC721ABurnable {
/**
* @dev Burns `tokenId`. See {ERC721A-_burn}.
*
* Requirements:
*
* - The caller must own `tokenId` or be an approved operator.
*/
function burn(uint256 tokenId) public virtual override {
_burn(tokenId, true);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721 is IERC165 {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(address from, address to, uint256 tokenId) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
* or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
* understand this adds an external call which potentially creates a reentrancy vulnerability.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 tokenId) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721Receiver {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC721.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721Metadata is IERC721 {
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
*
* Furthermore, `isContract` will also return true if the target contract within
* the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
* which only has an effect at the end of a transaction.
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
function _contextSuffixLength() internal view virtual returns (uint256) {
return 0;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
import "./math/Math.sol";
import "./math/SignedMath.sol";
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
unchecked {
uint256 length = Math.log10(value) + 1;
string memory buffer = new string(length);
uint256 ptr;
/// @solidity memory-safe-assembly
assembly {
ptr := add(buffer, add(32, length))
}
while (true) {
ptr--;
/// @solidity memory-safe-assembly
assembly {
mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
}
value /= 10;
if (value == 0) break;
}
return buffer;
}
}
/**
* @dev Converts a `int256` to its ASCII `string` decimal representation.
*/
function toString(int256 value) internal pure returns (string memory) {
return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value))));
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
unchecked {
return toHexString(value, Math.log256(value) + 1);
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
/**
* @dev Returns true if the two strings are equal.
*/
function equal(string memory a, string memory b) internal pure returns (bool) {
return keccak256(bytes(a)) == keccak256(bytes(b));
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165 is IERC165 {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which allows children to implement an emergency stop
* mechanism that can be triggered by an authorized account.
*
* This module is used through inheritance. It will make available the
* modifiers `whenNotPaused` and `whenPaused`, which can be applied to
* the functions of your contract. Note that they will not be pausable by
* simply including this module, only once the modifiers are put in place.
*/
abstract contract Pausable is Context {
/**
* @dev Emitted when the pause is triggered by `account`.
*/
event Paused(address account);
/**
* @dev Emitted when the pause is lifted by `account`.
*/
event Unpaused(address account);
bool private _paused;
/**
* @dev Initializes the contract in unpaused state.
*/
constructor() {
_paused = false;
}
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*
* Requirements:
*
* - The contract must not be paused.
*/
modifier whenNotPaused() {
_requireNotPaused();
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*
* Requirements:
*
* - The contract must be paused.
*/
modifier whenPaused() {
_requirePaused();
_;
}
/**
* @dev Returns true if the contract is paused, and false otherwise.
*/
function paused() public view virtual returns (bool) {
return _paused;
}
/**
* @dev Throws if the contract is paused.
*/
function _requireNotPaused() internal view virtual {
require(!paused(), "Pausable: paused");
}
/**
* @dev Throws if the contract is not paused.
*/
function _requirePaused() internal view virtual {
require(paused(), "Pausable: not paused");
}
/**
* @dev Triggers stopped state.
*
* Requirements:
*
* - The contract must not be paused.
*/
function _pause() internal virtual whenNotPaused {
_paused = true;
emit Paused(_msgSender());
}
/**
* @dev Returns to normal state.
*
* Requirements:
*
* - The contract must be paused.
*/
function _unpause() internal virtual whenPaused {
_paused = false;
emit Unpaused(_msgSender());
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @notice Library for byte related operations.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/LibBytes.sol)
library LibBytes {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* STRUCTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Goated bytes storage struct that totally MOGs, no cap, fr.
/// Uses less gas and bytecode than Solidity's native bytes storage. It's meta af.
/// Packs length with the first 31 bytes if <255 bytes, so it’s mad tight.
struct BytesStorage {
bytes32 _spacer;
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CONSTANTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The constant returned when the `search` is not found in the bytes.
uint256 internal constant NOT_FOUND = type(uint256).max;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* BYTE STORAGE OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Sets the value of the bytes storage `$` to `s`.
function set(BytesStorage storage $, bytes memory s) internal {
/// @solidity memory-safe-assembly
assembly {
let n := mload(s)
let packed := or(0xff, shl(8, n))
for { let i := 0 } 1 {} {
if iszero(gt(n, 0xfe)) {
i := 0x1f
packed := or(n, shl(8, mload(add(s, i))))
if iszero(gt(n, i)) { break }
}
let o := add(s, 0x20)
mstore(0x00, $.slot)
for { let p := keccak256(0x00, 0x20) } 1 {} {
sstore(add(p, shr(5, i)), mload(add(o, i)))
i := add(i, 0x20)
if iszero(lt(i, n)) { break }
}
break
}
sstore($.slot, packed)
}
}
/// @dev Sets the value of the bytes storage `$` to `s`.
function setCalldata(BytesStorage storage $, bytes calldata s) internal {
/// @solidity memory-safe-assembly
assembly {
let packed := or(0xff, shl(8, s.length))
for { let i := 0 } 1 {} {
if iszero(gt(s.length, 0xfe)) {
i := 0x1f
packed := or(s.length, shl(8, shr(8, calldataload(s.offset))))
if iszero(gt(s.length, i)) { break }
}
mstore(0x00, $.slot)
for { let p := keccak256(0x00, 0x20) } 1 {} {
sstore(add(p, shr(5, i)), calldataload(add(s.offset, i)))
i := add(i, 0x20)
if iszero(lt(i, s.length)) { break }
}
break
}
sstore($.slot, packed)
}
}
/// @dev Sets the value of the bytes storage `$` to the empty bytes.
function clear(BytesStorage storage $) internal {
delete $._spacer;
}
/// @dev Returns whether the value stored is `$` is the empty bytes "".
function isEmpty(BytesStorage storage $) internal view returns (bool) {
return uint256($._spacer) & 0xff == uint256(0);
}
/// @dev Returns the length of the value stored in `$`.
function length(BytesStorage storage $) internal view returns (uint256 result) {
result = uint256($._spacer);
/// @solidity memory-safe-assembly
assembly {
let n := and(0xff, result)
result := or(mul(shr(8, result), eq(0xff, n)), mul(n, iszero(eq(0xff, n))))
}
}
/// @dev Returns the value stored in `$`.
function get(BytesStorage storage $) internal view returns (bytes memory result) {
/// @solidity memory-safe-assembly
assembly {
result := mload(0x40)
let o := add(result, 0x20)
let packed := sload($.slot)
let n := shr(8, packed)
for { let i := 0 } 1 {} {
if iszero(eq(or(packed, 0xff), packed)) {
mstore(o, packed)
n := and(0xff, packed)
i := 0x1f
if iszero(gt(n, i)) { break }
}
mstore(0x00, $.slot)
for { let p := keccak256(0x00, 0x20) } 1 {} {
mstore(add(o, i), sload(add(p, shr(5, i))))
i := add(i, 0x20)
if iszero(lt(i, n)) { break }
}
break
}
mstore(result, n) // Store the length of the memory.
mstore(add(o, n), 0) // Zeroize the slot after the bytes.
mstore(0x40, add(add(o, n), 0x20)) // Allocate memory.
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* BYTES OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns `subject` all occurrences of `needle` replaced with `replacement`.
function replace(bytes memory subject, bytes memory needle, bytes memory replacement)
internal
pure
returns (bytes 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.
mstore(0x00, add(i, mload(subject))) // End of subject.
if iszero(gt(needleLen, mload(subject))) {
let subjectSearchEnd := add(sub(mload(0x00), 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 end := mload(0x00)
let n := add(sub(d, add(result, 0x20)), end)
// Copy the rest of the bytes 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 bytes.
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(bytes memory subject, bytes 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(bytes memory subject, bytes memory needle) internal pure returns (uint256) {
return 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(bytes memory subject, bytes 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(bytes memory subject, bytes memory needle)
internal
pure
returns (uint256)
{
return lastIndexOf(subject, needle, type(uint256).max);
}
/// @dev Returns true if `needle` is found in `subject`, false otherwise.
function contains(bytes memory subject, bytes memory needle) internal pure returns (bool) {
return indexOf(subject, needle) != NOT_FOUND;
}
/// @dev Returns whether `subject` starts with `needle`.
function startsWith(bytes memory subject, bytes memory needle)
internal
pure
returns (bool result)
{
/// @solidity memory-safe-assembly
assembly {
let n := mload(needle)
// Just using keccak256 directly is actually cheaper.
let t := eq(keccak256(add(subject, 0x20), n), keccak256(add(needle, 0x20), n))
result := lt(gt(n, mload(subject)), t)
}
}
/// @dev Returns whether `subject` ends with `needle`.
function endsWith(bytes memory subject, bytes memory needle)
internal
pure
returns (bool result)
{
/// @solidity memory-safe-assembly
assembly {
let n := mload(needle)
let notInRange := gt(n, mload(subject))
// `subject + 0x20 + max(subject.length - needle.length, 0)`.
let t := add(add(subject, 0x20), mul(iszero(notInRange), sub(mload(subject), n)))
// Just using keccak256 directly is actually cheaper.
result := gt(eq(keccak256(t, n), keccak256(add(needle, 0x20), n)), notInRange)
}
}
/// @dev Returns `subject` repeated `times`.
function repeat(bytes memory subject, uint256 times)
internal
pure
returns (bytes memory result)
{
/// @solidity memory-safe-assembly
assembly {
let l := mload(subject) // Subject length.
if iszero(or(iszero(times), iszero(l))) {
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, l)) { break }
}
o := add(o, l)
times := sub(times, 1)
if iszero(times) { break }
}
mstore(o, 0) // Zeroize the slot after the bytes.
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(bytes memory subject, uint256 start, uint256 end)
internal
pure
returns (bytes memory result)
{
/// @solidity memory-safe-assembly
assembly {
let l := mload(subject) // Subject length.
if iszero(gt(l, end)) { end := l }
if iszero(gt(l, start)) { start := l }
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 bytes.
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 bytes.
/// `start` is a byte offset.
function slice(bytes memory subject, uint256 start)
internal
pure
returns (bytes memory result)
{
result = slice(subject, start, type(uint256).max);
}
/// @dev Returns a copy of `subject` sliced from `start` to `end` (exclusive).
/// `start` and `end` are byte offsets. Faster than Solidity's native slicing.
function sliceCalldata(bytes calldata subject, uint256 start, uint256 end)
internal
pure
returns (bytes calldata result)
{
/// @solidity memory-safe-assembly
assembly {
end := xor(end, mul(xor(end, subject.length), lt(subject.length, end)))
start := xor(start, mul(xor(start, subject.length), lt(subject.length, start)))
result.offset := add(subject.offset, start)
result.length := mul(lt(start, end), sub(end, start))
}
}
/// @dev Returns a copy of `subject` sliced from `start` to the end of the bytes.
/// `start` is a byte offset. Faster than Solidity's native slicing.
function sliceCalldata(bytes calldata subject, uint256 start)
internal
pure
returns (bytes calldata result)
{
/// @solidity memory-safe-assembly
assembly {
start := xor(start, mul(xor(start, subject.length), lt(subject.length, start)))
result.offset := add(subject.offset, start)
result.length := mul(lt(start, subject.length), sub(subject.length, start))
}
}
/// @dev Reduces the size of `subject` to `n`.
/// If `n` is greater than the size of `subject`, this will be a no-op.
function truncate(bytes memory subject, uint256 n)
internal
pure
returns (bytes memory result)
{
/// @solidity memory-safe-assembly
assembly {
result := subject
mstore(mul(lt(n, mload(result)), result), n)
}
}
/// @dev Returns a copy of `subject`, with the length reduced to `n`.
/// If `n` is greater than the size of `subject`, this will be a no-op.
function truncatedCalldata(bytes calldata subject, uint256 n)
internal
pure
returns (bytes calldata result)
{
/// @solidity memory-safe-assembly
assembly {
result.offset := subject.offset
result.length := xor(n, mul(xor(n, subject.length), lt(subject.length, n)))
}
}
/// @dev Returns all the indices of `needle` in `subject`.
/// The indices are byte offsets.
function indicesOf(bytes memory subject, bytes 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 bytess based on the `delimiter` inside of the `subject` bytes.
function split(bytes memory subject, bytes memory delimiter)
internal
pure
returns (bytes[] 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 bytes.
// 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 bytes of `a` and `b`.
/// Cheaper than `bytes.concat()` and does not de-align the free memory pointer.
function concat(bytes memory a, bytes memory b) internal pure returns (bytes 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 bytes.
mstore(result, totalLen) // Store the length.
mstore(0x40, add(last, 0x20)) // Allocate memory.
}
}
/// @dev Returns whether `a` equals `b`.
function eq(bytes memory a, bytes 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 bytes.
function eqs(bytes 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 Returns 0 if `a == b`, -1 if `a < b`, +1 if `a > b`.
/// If `a` == b[:a.length]`, and `a.length < b.length`, returns -1.
function cmp(bytes memory a, bytes memory b) internal pure returns (int256 result) {
/// @solidity memory-safe-assembly
assembly {
let aLen := mload(a)
let bLen := mload(b)
let n := and(xor(aLen, mul(xor(aLen, bLen), lt(bLen, aLen))), not(0x1f))
if n {
for { let i := 0x20 } 1 {} {
let x := mload(add(a, i))
let y := mload(add(b, i))
if iszero(or(xor(x, y), eq(i, n))) {
i := add(i, 0x20)
continue
}
result := sub(gt(x, y), lt(x, y))
break
}
}
// forgefmt: disable-next-item
if iszero(result) {
let l := 0x201f1e1d1c1b1a191817161514131211100f0e0d0c0b0a090807060504030201
let x := and(mload(add(add(a, 0x20), n)), shl(shl(3, byte(sub(aLen, n), l)), not(0)))
let y := and(mload(add(add(b, 0x20), n)), shl(shl(3, byte(sub(bLen, n), l)), not(0)))
result := sub(gt(x, y), lt(x, y))
if iszero(result) { result := sub(gt(aLen, bLen), lt(aLen, bLen)) }
}
}
}
/// @dev Directly returns `a` without copying.
function directReturn(bytes memory a) internal pure {
/// @solidity memory-safe-assembly
assembly {
// Assumes that the bytes 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 bytes 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 bytes.
return(retStart, and(not(0x1f), add(0x1f, retUnpaddedSize)))
}
}
/// @dev Directly returns `a` with minimal copying.
function directReturn(bytes[] memory a) internal pure {
/// @solidity memory-safe-assembly
assembly {
let n := mload(a) // `a.length`.
let o := add(a, 0x20) // Start of elements in `a`.
let u := a // Highest memory slot.
let w := not(0x1f)
for { let i := 0 } iszero(eq(i, n)) { i := add(i, 1) } {
let c := add(o, shl(5, i)) // Location of pointer to `a[i]`.
let s := mload(c) // `a[i]`.
let l := mload(s) // `a[i].length`.
let r := and(l, 0x1f) // `a[i].length % 32`.
let z := add(0x20, and(l, w)) // Offset of last word in `a[i]` from `s`.
// If `s` comes before `o`, or `s` is not zero right padded.
if iszero(lt(lt(s, o), or(iszero(r), iszero(shl(shl(3, r), mload(add(s, z))))))) {
let m := mload(0x40)
mstore(m, l) // Copy `a[i].length`.
for {} 1 {} {
mstore(add(m, z), mload(add(s, z))) // Copy `a[i]`, backwards.
z := add(z, w) // `sub(z, 0x20)`.
if iszero(z) { break }
}
let e := add(add(m, 0x20), l)
mstore(e, 0) // Zeroize the slot after the copied bytes.
mstore(0x40, add(e, 0x20)) // Allocate memory.
s := m
}
mstore(c, sub(s, o)) // Convert to calldata offset.
let t := add(l, add(s, 0x20))
if iszero(lt(t, u)) { u := t }
}
let retStart := add(a, w) // Assumes `a` doesn't start from scratch space.
mstore(retStart, 0x20) // Store the return offset.
return(retStart, add(0x40, sub(u, retStart))) // End the transaction.
}
}
/// @dev Returns the word at `offset`, without any bounds checks.
function load(bytes memory a, uint256 offset) internal pure returns (bytes32 result) {
/// @solidity memory-safe-assembly
assembly {
result := mload(add(add(a, 0x20), offset))
}
}
/// @dev Returns the word at `offset`, without any bounds checks.
function loadCalldata(bytes calldata a, uint256 offset)
internal
pure
returns (bytes32 result)
{
/// @solidity memory-safe-assembly
assembly {
result := calldataload(add(a.offset, offset))
}
}
/// @dev Returns a slice representing a static struct in the calldata. Performs bounds checks.
function staticStructInCalldata(bytes calldata a, uint256 offset)
internal
pure
returns (bytes calldata result)
{
/// @solidity memory-safe-assembly
assembly {
let l := sub(a.length, 0x20)
result.offset := add(a.offset, offset)
result.length := sub(a.length, offset)
if or(shr(64, or(l, a.offset)), gt(offset, l)) { revert(l, 0x00) }
}
}
/// @dev Returns a slice representing a dynamic struct in the calldata. Performs bounds checks.
function dynamicStructInCalldata(bytes calldata a, uint256 offset)
internal
pure
returns (bytes calldata result)
{
/// @solidity memory-safe-assembly
assembly {
let l := sub(a.length, 0x20)
let s := calldataload(add(a.offset, offset)) // Relative offset of `result` from `a.offset`.
result.offset := add(a.offset, s)
result.length := sub(a.length, s)
if or(shr(64, or(s, or(l, a.offset))), gt(offset, l)) { revert(l, 0x00) }
}
}
/// @dev Returns bytes in calldata. Performs bounds checks.
function bytesInCalldata(bytes calldata a, uint256 offset)
internal
pure
returns (bytes calldata result)
{
/// @solidity memory-safe-assembly
assembly {
let l := sub(a.length, 0x20)
let s := calldataload(add(a.offset, offset)) // Relative offset of `result` from `a.offset`.
result.offset := add(add(a.offset, s), 0x20)
result.length := calldataload(add(a.offset, s))
// forgefmt: disable-next-item
if or(shr(64, or(result.length, or(s, or(l, a.offset)))),
or(gt(add(s, result.length), l), gt(offset, l))) { revert(l, 0x00) }
}
}
/// @dev Returns empty calldata bytes. For silencing the compiler.
function emptyCalldata() internal pure returns (bytes calldata result) {
/// @solidity memory-safe-assembly
assembly {
result.length := 0
}
}
}// SPDX-License-Identifier: MIT
// ERC721A Contracts v4.3.0
// Creator: Chiru Labs
pragma solidity ^0.8.4;
import '../IERC721A.sol';
/**
* @dev Interface of ERC721AQueryable.
*/
interface IERC721AQueryable is IERC721A {
/**
* Invalid query range (`start` >= `stop`).
*/
error InvalidQueryRange();
/**
* @dev Returns the `TokenOwnership` struct at `tokenId` without reverting.
*
* If the `tokenId` is out of bounds:
*
* - `addr = address(0)`
* - `startTimestamp = 0`
* - `burned = false`
* - `extraData = 0`
*
* If the `tokenId` is burned:
*
* - `addr = <Address of owner before token was burned>`
* - `startTimestamp = <Timestamp when token was burned>`
* - `burned = true`
* - `extraData = <Extra data when token was burned>`
*
* Otherwise:
*
* - `addr = <Address of owner>`
* - `startTimestamp = <Timestamp of start of ownership>`
* - `burned = false`
* - `extraData = <Extra data at start of ownership>`
*/
function explicitOwnershipOf(uint256 tokenId) external view returns (TokenOwnership memory);
/**
* @dev Returns an array of `TokenOwnership` structs at `tokenIds` in order.
* See {ERC721AQueryable-explicitOwnershipOf}
*/
function explicitOwnershipsOf(uint256[] memory tokenIds) external view returns (TokenOwnership[] memory);
/**
* @dev Returns an array of token IDs owned by `owner`,
* in the range [`start`, `stop`)
* (i.e. `start <= tokenId < stop`).
*
* This function allows for tokens to be queried if the collection
* grows too big for a single call of {ERC721AQueryable-tokensOfOwner}.
*
* Requirements:
*
* - `start < stop`
*/
function tokensOfOwnerIn(
address owner,
uint256 start,
uint256 stop
) external view returns (uint256[] memory);
/**
* @dev Returns an array of token IDs owned by `owner`.
*
* This function scans the ownership mapping and is O(`totalSupply`) in complexity.
* It is meant to be called off-chain.
*
* See {ERC721AQueryable-tokensOfOwnerIn} for splitting the scan into
* multiple smaller scans if the collection is large enough to cause
* an out-of-gas error (10K collections should be fine).
*/
function tokensOfOwner(address owner) external view returns (uint256[] memory);
}// SPDX-License-Identifier: MIT
// ERC721A Contracts v4.3.0
// Creator: Chiru Labs
pragma solidity ^0.8.4;
import './IERC721A.sol';
/**
* @dev Interface of ERC721 token receiver.
*/
interface ERC721A__IERC721Receiver {
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
/**
* @title ERC721A
*
* @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721)
* Non-Fungible Token Standard, including the Metadata extension.
* Optimized for lower gas during batch mints.
*
* Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...)
* starting from `_startTokenId()`.
*
* The `_sequentialUpTo()` function can be overriden to enable spot mints
* (i.e. non-consecutive mints) for `tokenId`s greater than `_sequentialUpTo()`.
*
* Assumptions:
*
* - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
* - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256).
*/
contract ERC721A is IERC721A {
// Bypass for a `--via-ir` bug (https://github.com/chiru-labs/ERC721A/pull/364).
struct TokenApprovalRef {
address value;
}
// =============================================================
// CONSTANTS
// =============================================================
// Mask of an entry in packed address data.
uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;
// The bit position of `numberMinted` in packed address data.
uint256 private constant _BITPOS_NUMBER_MINTED = 64;
// The bit position of `numberBurned` in packed address data.
uint256 private constant _BITPOS_NUMBER_BURNED = 128;
// The bit position of `aux` in packed address data.
uint256 private constant _BITPOS_AUX = 192;
// Mask of all 256 bits in packed address data except the 64 bits for `aux`.
uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;
// The bit position of `startTimestamp` in packed ownership.
uint256 private constant _BITPOS_START_TIMESTAMP = 160;
// The bit mask of the `burned` bit in packed ownership.
uint256 private constant _BITMASK_BURNED = 1 << 224;
// The bit position of the `nextInitialized` bit in packed ownership.
uint256 private constant _BITPOS_NEXT_INITIALIZED = 225;
// The bit mask of the `nextInitialized` bit in packed ownership.
uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225;
// The bit position of `extraData` in packed ownership.
uint256 private constant _BITPOS_EXTRA_DATA = 232;
// Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`.
uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1;
// The mask of the lower 160 bits for addresses.
uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1;
// The maximum `quantity` that can be minted with {_mintERC2309}.
// This limit is to prevent overflows on the address data entries.
// For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309}
// is required to cause an overflow, which is unrealistic.
uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000;
// The `Transfer` event signature is given by:
// `keccak256(bytes("Transfer(address,address,uint256)"))`.
bytes32 private constant _TRANSFER_EVENT_SIGNATURE =
0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;
// =============================================================
// STORAGE
// =============================================================
// The next token ID to be minted.
uint256 private _currentIndex;
// The number of tokens burned.
uint256 private _burnCounter;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned.
// See {_packedOwnershipOf} implementation for details.
//
// Bits Layout:
// - [0..159] `addr`
// - [160..223] `startTimestamp`
// - [224] `burned`
// - [225] `nextInitialized`
// - [232..255] `extraData`
mapping(uint256 => uint256) private _packedOwnerships;
// Mapping owner address to address data.
//
// Bits Layout:
// - [0..63] `balance`
// - [64..127] `numberMinted`
// - [128..191] `numberBurned`
// - [192..255] `aux`
mapping(address => uint256) private _packedAddressData;
// Mapping from token ID to approved address.
mapping(uint256 => TokenApprovalRef) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
// The amount of tokens minted above `_sequentialUpTo()`.
// We call these spot mints (i.e. non-sequential mints).
uint256 private _spotMinted;
// =============================================================
// CONSTRUCTOR
// =============================================================
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
_currentIndex = _startTokenId();
if (_sequentialUpTo() < _startTokenId()) _revert(SequentialUpToTooSmall.selector);
}
// =============================================================
// TOKEN COUNTING OPERATIONS
// =============================================================
/**
* @dev Returns the starting token ID for sequential mints.
*
* Override this function to change the starting token ID for sequential mints.
*
* Note: The value returned must never change after any tokens have been minted.
*/
function _startTokenId() internal view virtual returns (uint256) {
return 0;
}
/**
* @dev Returns the maximum token ID (inclusive) for sequential mints.
*
* Override this function to return a value less than 2**256 - 1,
* but greater than `_startTokenId()`, to enable spot (non-sequential) mints.
*
* Note: The value returned must never change after any tokens have been minted.
*/
function _sequentialUpTo() internal view virtual returns (uint256) {
return type(uint256).max;
}
/**
* @dev Returns the next token ID to be minted.
*/
function _nextTokenId() internal view virtual returns (uint256) {
return _currentIndex;
}
/**
* @dev Returns the total number of tokens in existence.
* Burned tokens will reduce the count.
* To get the total number of tokens minted, please see {_totalMinted}.
*/
function totalSupply() public view virtual override returns (uint256 result) {
// Counter underflow is impossible as `_burnCounter` cannot be incremented
// more than `_currentIndex + _spotMinted - _startTokenId()` times.
unchecked {
// With spot minting, the intermediate `result` can be temporarily negative,
// and the computation must be unchecked.
result = _currentIndex - _burnCounter - _startTokenId();
if (_sequentialUpTo() != type(uint256).max) result += _spotMinted;
}
}
/**
* @dev Returns the total amount of tokens minted in the contract.
*/
function _totalMinted() internal view virtual returns (uint256 result) {
// Counter underflow is impossible as `_currentIndex` does not decrement,
// and it is initialized to `_startTokenId()`.
unchecked {
result = _currentIndex - _startTokenId();
if (_sequentialUpTo() != type(uint256).max) result += _spotMinted;
}
}
/**
* @dev Returns the total number of tokens burned.
*/
function _totalBurned() internal view virtual returns (uint256) {
return _burnCounter;
}
/**
* @dev Returns the total number of tokens that are spot-minted.
*/
function _totalSpotMinted() internal view virtual returns (uint256) {
return _spotMinted;
}
// =============================================================
// ADDRESS DATA OPERATIONS
// =============================================================
/**
* @dev Returns the number of tokens in `owner`'s account.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
if (owner == address(0)) _revert(BalanceQueryForZeroAddress.selector);
return _packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY;
}
/**
* Returns the number of tokens minted by `owner`.
*/
function _numberMinted(address owner) internal view returns (uint256) {
return (_packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) & _BITMASK_ADDRESS_DATA_ENTRY;
}
/**
* Returns the number of tokens burned by or on behalf of `owner`.
*/
function _numberBurned(address owner) internal view returns (uint256) {
return (_packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) & _BITMASK_ADDRESS_DATA_ENTRY;
}
/**
* Returns the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).
*/
function _getAux(address owner) internal view returns (uint64) {
return uint64(_packedAddressData[owner] >> _BITPOS_AUX);
}
/**
* Sets the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).
* If there are multiple variables, please pack them into a uint64.
*/
function _setAux(address owner, uint64 aux) internal virtual {
uint256 packed = _packedAddressData[owner];
uint256 auxCasted;
// Cast `aux` with assembly to avoid redundant masking.
assembly {
auxCasted := aux
}
packed = (packed & _BITMASK_AUX_COMPLEMENT) | (auxCasted << _BITPOS_AUX);
_packedAddressData[owner] = packed;
}
// =============================================================
// IERC165
// =============================================================
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
* to learn more about how these ids are created.
*
* This function call must use less than 30000 gas.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
// The interface IDs are constants representing the first 4 bytes
// of the XOR of all function selectors in the interface.
// See: [ERC165](https://eips.ethereum.org/EIPS/eip-165)
// (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`)
return
interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165.
interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721.
interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata.
}
// =============================================================
// IERC721Metadata
// =============================================================
/**
* @dev Returns the token collection name.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the token collection symbol.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
if (!_exists(tokenId)) _revert(URIQueryForNonexistentToken.selector);
string memory baseURI = _baseURI();
return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, _toString(tokenId))) : '';
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, it can be overridden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return '';
}
// =============================================================
// OWNERSHIPS OPERATIONS
// =============================================================
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
return address(uint160(_packedOwnershipOf(tokenId)));
}
/**
* @dev Gas spent here starts off proportional to the maximum mint batch size.
* It gradually moves to O(1) as tokens get transferred around over time.
*/
function _ownershipOf(uint256 tokenId) internal view virtual returns (TokenOwnership memory) {
return _unpackedOwnership(_packedOwnershipOf(tokenId));
}
/**
* @dev Returns the unpacked `TokenOwnership` struct at `index`.
*/
function _ownershipAt(uint256 index) internal view virtual returns (TokenOwnership memory) {
return _unpackedOwnership(_packedOwnerships[index]);
}
/**
* @dev Returns whether the ownership slot at `index` is initialized.
* An uninitialized slot does not necessarily mean that the slot has no owner.
*/
function _ownershipIsInitialized(uint256 index) internal view virtual returns (bool) {
return _packedOwnerships[index] != 0;
}
/**
* @dev Initializes the ownership slot minted at `index` for efficiency purposes.
*/
function _initializeOwnershipAt(uint256 index) internal virtual {
if (_packedOwnerships[index] == 0) {
_packedOwnerships[index] = _packedOwnershipOf(index);
}
}
/**
* @dev Returns the packed ownership data of `tokenId`.
*/
function _packedOwnershipOf(uint256 tokenId) private view returns (uint256 packed) {
if (_startTokenId() <= tokenId) {
packed = _packedOwnerships[tokenId];
if (tokenId > _sequentialUpTo()) {
if (_packedOwnershipExists(packed)) return packed;
_revert(OwnerQueryForNonexistentToken.selector);
}
// If the data at the starting slot does not exist, start the scan.
if (packed == 0) {
if (tokenId >= _currentIndex) _revert(OwnerQueryForNonexistentToken.selector);
// Invariant:
// There will always be an initialized ownership slot
// (i.e. `ownership.addr != address(0) && ownership.burned == false`)
// before an unintialized ownership slot
// (i.e. `ownership.addr == address(0) && ownership.burned == false`)
// Hence, `tokenId` will not underflow.
//
// We can directly compare the packed value.
// If the address is zero, packed will be zero.
for (;;) {
unchecked {
packed = _packedOwnerships[--tokenId];
}
if (packed == 0) continue;
if (packed & _BITMASK_BURNED == 0) return packed;
// Otherwise, the token is burned, and we must revert.
// This handles the case of batch burned tokens, where only the burned bit
// of the starting slot is set, and remaining slots are left uninitialized.
_revert(OwnerQueryForNonexistentToken.selector);
}
}
// Otherwise, the data exists and we can skip the scan.
// This is possible because we have already achieved the target condition.
// This saves 2143 gas on transfers of initialized tokens.
// If the token is not burned, return `packed`. Otherwise, revert.
if (packed & _BITMASK_BURNED == 0) return packed;
}
_revert(OwnerQueryForNonexistentToken.selector);
}
/**
* @dev Returns the unpacked `TokenOwnership` struct from `packed`.
*/
function _unpackedOwnership(uint256 packed) private pure returns (TokenOwnership memory ownership) {
ownership.addr = address(uint160(packed));
ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP);
ownership.burned = packed & _BITMASK_BURNED != 0;
ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA);
}
/**
* @dev Packs ownership data into a single uint256.
*/
function _packOwnershipData(address owner, uint256 flags) private view returns (uint256 result) {
assembly {
// Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.
owner := and(owner, _BITMASK_ADDRESS)
// `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`.
result := or(owner, or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags))
}
}
/**
* @dev Returns the `nextInitialized` flag set if `quantity` equals 1.
*/
function _nextInitializedFlag(uint256 quantity) private pure returns (uint256 result) {
// For branchless setting of the `nextInitialized` flag.
assembly {
// `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`.
result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1))
}
}
// =============================================================
// APPROVAL OPERATIONS
// =============================================================
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account. See {ERC721A-_approve}.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
*/
function approve(address to, uint256 tokenId) public payable virtual override {
_approve(to, tokenId, true);
}
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
if (!_exists(tokenId)) _revert(ApprovalQueryForNonexistentToken.selector);
return _tokenApprovals[tokenId].value;
}
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom}
* for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
_operatorApprovals[_msgSenderERC721A()][operator] = approved;
emit ApprovalForAll(_msgSenderERC721A(), operator, approved);
}
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted. See {_mint}.
*/
function _exists(uint256 tokenId) internal view virtual returns (bool result) {
if (_startTokenId() <= tokenId) {
if (tokenId > _sequentialUpTo()) return _packedOwnershipExists(_packedOwnerships[tokenId]);
if (tokenId < _currentIndex) {
uint256 packed;
while ((packed = _packedOwnerships[tokenId]) == 0) --tokenId;
result = packed & _BITMASK_BURNED == 0;
}
}
}
/**
* @dev Returns whether `packed` represents a token that exists.
*/
function _packedOwnershipExists(uint256 packed) private pure returns (bool result) {
assembly {
// The following is equivalent to `owner != address(0) && burned == false`.
// Symbolically tested.
result := gt(and(packed, _BITMASK_ADDRESS), and(packed, _BITMASK_BURNED))
}
}
/**
* @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`.
*/
function _isSenderApprovedOrOwner(
address approvedAddress,
address owner,
address msgSender
) private pure returns (bool result) {
assembly {
// Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.
owner := and(owner, _BITMASK_ADDRESS)
// Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean.
msgSender := and(msgSender, _BITMASK_ADDRESS)
// `msgSender == owner || msgSender == approvedAddress`.
result := or(eq(msgSender, owner), eq(msgSender, approvedAddress))
}
}
/**
* @dev Returns the storage slot and value for the approved address of `tokenId`.
*/
function _getApprovedSlotAndAddress(uint256 tokenId)
private
view
returns (uint256 approvedAddressSlot, address approvedAddress)
{
TokenApprovalRef storage tokenApproval = _tokenApprovals[tokenId];
// The following is equivalent to `approvedAddress = _tokenApprovals[tokenId].value`.
assembly {
approvedAddressSlot := tokenApproval.slot
approvedAddress := sload(approvedAddressSlot)
}
}
// =============================================================
// TRANSFER OPERATIONS
// =============================================================
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token
* by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public payable virtual override {
uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);
// Mask `from` to the lower 160 bits, in case the upper bits somehow aren't clean.
from = address(uint160(uint256(uint160(from)) & _BITMASK_ADDRESS));
if (address(uint160(prevOwnershipPacked)) != from) _revert(TransferFromIncorrectOwner.selector);
(uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);
// The nested ifs save around 20+ gas over a compound boolean condition.
if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))
if (!isApprovedForAll(from, _msgSenderERC721A())) _revert(TransferCallerNotOwnerNorApproved.selector);
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner.
assembly {
if approvedAddress {
// This is equivalent to `delete _tokenApprovals[tokenId]`.
sstore(approvedAddressSlot, 0)
}
}
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
// Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.
unchecked {
// We can directly increment and decrement the balances.
--_packedAddressData[from]; // Updates: `balance -= 1`.
++_packedAddressData[to]; // Updates: `balance += 1`.
// Updates:
// - `address` to the next owner.
// - `startTimestamp` to the timestamp of transfering.
// - `burned` to `false`.
// - `nextInitialized` to `true`.
_packedOwnerships[tokenId] = _packOwnershipData(
to,
_BITMASK_NEXT_INITIALIZED | _nextExtraData(from, to, prevOwnershipPacked)
);
// If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
uint256 nextTokenId = tokenId + 1;
// If the next slot's address is zero and not burned (i.e. packed value is zero).
if (_packedOwnerships[nextTokenId] == 0) {
// If the next slot is within bounds.
if (nextTokenId != _currentIndex) {
// Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
_packedOwnerships[nextTokenId] = prevOwnershipPacked;
}
}
}
}
// Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;
assembly {
// Emit the `Transfer` event.
log4(
0, // Start of data (0, since no data).
0, // End of data (0, since no data).
_TRANSFER_EVENT_SIGNATURE, // Signature.
from, // `from`.
toMasked, // `to`.
tokenId // `tokenId`.
)
}
if (toMasked == 0) _revert(TransferToZeroAddress.selector);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public payable virtual override {
safeTransferFrom(from, to, tokenId, '');
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token
* by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement
* {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public payable virtual override {
transferFrom(from, to, tokenId);
if (to.code.length != 0)
if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
_revert(TransferToNonERC721ReceiverImplementer.selector);
}
}
/**
* @dev Hook that is called before a set of serially-ordered token IDs
* are about to be transferred. This includes minting.
* And also called before burning one token.
*
* `startTokenId` - the first token ID to be transferred.
* `quantity` - the amount to be transferred.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, `tokenId` will be burned by `from`.
* - `from` and `to` are never both zero.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token IDs
* have been transferred. This includes minting.
* And also called after one token has been burned.
*
* `startTokenId` - the first token ID to be transferred.
* `quantity` - the amount to be transferred.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, `from`'s `tokenId` has been
* transferred to `to`.
* - When `from` is zero, `tokenId` has been minted for `to`.
* - When `to` is zero, `tokenId` has been burned by `from`.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract.
*
* `from` - Previous owner of the given token ID.
* `to` - Target address that will receive the token.
* `tokenId` - Token ID to be transferred.
* `_data` - Optional data to send along with the call.
*
* Returns whether the call correctly returned the expected magic value.
*/
function _checkContractOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
try ERC721A__IERC721Receiver(to).onERC721Received(_msgSenderERC721A(), from, tokenId, _data) returns (
bytes4 retval
) {
return retval == ERC721A__IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
_revert(TransferToNonERC721ReceiverImplementer.selector);
}
assembly {
revert(add(32, reason), mload(reason))
}
}
}
// =============================================================
// MINT OPERATIONS
// =============================================================
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event for each mint.
*/
function _mint(address to, uint256 quantity) internal virtual {
uint256 startTokenId = _currentIndex;
if (quantity == 0) _revert(MintZeroQuantity.selector);
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
// Overflows are incredibly unrealistic.
// `balance` and `numberMinted` have a maximum limit of 2**64.
// `tokenId` has a maximum limit of 2**256.
unchecked {
// Updates:
// - `address` to the owner.
// - `startTimestamp` to the timestamp of minting.
// - `burned` to `false`.
// - `nextInitialized` to `quantity == 1`.
_packedOwnerships[startTokenId] = _packOwnershipData(
to,
_nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)
);
// Updates:
// - `balance += quantity`.
// - `numberMinted += quantity`.
//
// We can directly add to the `balance` and `numberMinted`.
_packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);
// Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;
if (toMasked == 0) _revert(MintToZeroAddress.selector);
uint256 end = startTokenId + quantity;
uint256 tokenId = startTokenId;
if (end - 1 > _sequentialUpTo()) _revert(SequentialMintExceedsLimit.selector);
do {
assembly {
// Emit the `Transfer` event.
log4(
0, // Start of data (0, since no data).
0, // End of data (0, since no data).
_TRANSFER_EVENT_SIGNATURE, // Signature.
0, // `address(0)`.
toMasked, // `to`.
tokenId // `tokenId`.
)
}
// The `!=` check ensures that large values of `quantity`
// that overflows uint256 will make the loop run out of gas.
} while (++tokenId != end);
_currentIndex = end;
}
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* This function is intended for efficient minting only during contract creation.
*
* It emits only one {ConsecutiveTransfer} as defined in
* [ERC2309](https://eips.ethereum.org/EIPS/eip-2309),
* instead of a sequence of {Transfer} event(s).
*
* Calling this function outside of contract creation WILL make your contract
* non-compliant with the ERC721 standard.
* For full ERC721 compliance, substituting ERC721 {Transfer} event(s) with the ERC2309
* {ConsecutiveTransfer} event is only permissible during contract creation.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {ConsecutiveTransfer} event.
*/
function _mintERC2309(address to, uint256 quantity) internal virtual {
uint256 startTokenId = _currentIndex;
if (to == address(0)) _revert(MintToZeroAddress.selector);
if (quantity == 0) _revert(MintZeroQuantity.selector);
if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT) _revert(MintERC2309QuantityExceedsLimit.selector);
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
// Overflows are unrealistic due to the above check for `quantity` to be below the limit.
unchecked {
// Updates:
// - `balance += quantity`.
// - `numberMinted += quantity`.
//
// We can directly add to the `balance` and `numberMinted`.
_packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);
// Updates:
// - `address` to the owner.
// - `startTimestamp` to the timestamp of minting.
// - `burned` to `false`.
// - `nextInitialized` to `quantity == 1`.
_packedOwnerships[startTokenId] = _packOwnershipData(
to,
_nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)
);
if (startTokenId + quantity - 1 > _sequentialUpTo()) _revert(SequentialMintExceedsLimit.selector);
emit ConsecutiveTransfer(startTokenId, startTokenId + quantity - 1, address(0), to);
_currentIndex = startTokenId + quantity;
}
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Safely mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement
* {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
* - `quantity` must be greater than 0.
*
* See {_mint}.
*
* Emits a {Transfer} event for each mint.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal virtual {
_mint(to, quantity);
unchecked {
if (to.code.length != 0) {
uint256 end = _currentIndex;
uint256 index = end - quantity;
do {
if (!_checkContractOnERC721Received(address(0), to, index++, _data)) {
_revert(TransferToNonERC721ReceiverImplementer.selector);
}
} while (index < end);
// This prevents reentrancy to `_safeMint`.
// It does not prevent reentrancy to `_safeMintSpot`.
if (_currentIndex != end) revert();
}
}
}
/**
* @dev Equivalent to `_safeMint(to, quantity, '')`.
*/
function _safeMint(address to, uint256 quantity) internal virtual {
_safeMint(to, quantity, '');
}
/**
* @dev Mints a single token at `tokenId`.
*
* Note: A spot-minted `tokenId` that has been burned can be re-minted again.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` must be greater than `_sequentialUpTo()`.
* - `tokenId` must not exist.
*
* Emits a {Transfer} event for each mint.
*/
function _mintSpot(address to, uint256 tokenId) internal virtual {
if (tokenId <= _sequentialUpTo()) _revert(SpotMintTokenIdTooSmall.selector);
uint256 prevOwnershipPacked = _packedOwnerships[tokenId];
if (_packedOwnershipExists(prevOwnershipPacked)) _revert(TokenAlreadyExists.selector);
_beforeTokenTransfers(address(0), to, tokenId, 1);
// Overflows are incredibly unrealistic.
// The `numberMinted` for `to` is incremented by 1, and has a max limit of 2**64 - 1.
// `_spotMinted` is incremented by 1, and has a max limit of 2**256 - 1.
unchecked {
// Updates:
// - `address` to the owner.
// - `startTimestamp` to the timestamp of minting.
// - `burned` to `false`.
// - `nextInitialized` to `true` (as `quantity == 1`).
_packedOwnerships[tokenId] = _packOwnershipData(
to,
_nextInitializedFlag(1) | _nextExtraData(address(0), to, prevOwnershipPacked)
);
// Updates:
// - `balance += 1`.
// - `numberMinted += 1`.
//
// We can directly add to the `balance` and `numberMinted`.
_packedAddressData[to] += (1 << _BITPOS_NUMBER_MINTED) | 1;
// Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;
if (toMasked == 0) _revert(MintToZeroAddress.selector);
assembly {
// Emit the `Transfer` event.
log4(
0, // Start of data (0, since no data).
0, // End of data (0, since no data).
_TRANSFER_EVENT_SIGNATURE, // Signature.
0, // `address(0)`.
toMasked, // `to`.
tokenId // `tokenId`.
)
}
++_spotMinted;
}
_afterTokenTransfers(address(0), to, tokenId, 1);
}
/**
* @dev Safely mints a single token at `tokenId`.
*
* Note: A spot-minted `tokenId` that has been burned can be re-minted again.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}.
* - `tokenId` must be greater than `_sequentialUpTo()`.
* - `tokenId` must not exist.
*
* See {_mintSpot}.
*
* Emits a {Transfer} event.
*/
function _safeMintSpot(
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_mintSpot(to, tokenId);
unchecked {
if (to.code.length != 0) {
uint256 currentSpotMinted = _spotMinted;
if (!_checkContractOnERC721Received(address(0), to, tokenId, _data)) {
_revert(TransferToNonERC721ReceiverImplementer.selector);
}
// This prevents reentrancy to `_safeMintSpot`.
// It does not prevent reentrancy to `_safeMint`.
if (_spotMinted != currentSpotMinted) revert();
}
}
}
/**
* @dev Equivalent to `_safeMintSpot(to, tokenId, '')`.
*/
function _safeMintSpot(address to, uint256 tokenId) internal virtual {
_safeMintSpot(to, tokenId, '');
}
// =============================================================
// APPROVAL OPERATIONS
// =============================================================
/**
* @dev Equivalent to `_approve(to, tokenId, false)`.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_approve(to, tokenId, false);
}
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the
* zero address clears previous approvals.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
bool approvalCheck
) internal virtual {
address owner = ownerOf(tokenId);
if (approvalCheck && _msgSenderERC721A() != owner)
if (!isApprovedForAll(owner, _msgSenderERC721A())) {
_revert(ApprovalCallerNotOwnerNorApproved.selector);
}
_tokenApprovals[tokenId].value = to;
emit Approval(owner, to, tokenId);
}
// =============================================================
// BURN OPERATIONS
// =============================================================
/**
* @dev Equivalent to `_burn(tokenId, false)`.
*/
function _burn(uint256 tokenId) internal virtual {
_burn(tokenId, false);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);
address from = address(uint160(prevOwnershipPacked));
(uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);
if (approvalCheck) {
// The nested ifs save around 20+ gas over a compound boolean condition.
if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))
if (!isApprovedForAll(from, _msgSenderERC721A())) _revert(TransferCallerNotOwnerNorApproved.selector);
}
_beforeTokenTransfers(from, address(0), tokenId, 1);
// Clear approvals from the previous owner.
assembly {
if approvedAddress {
// This is equivalent to `delete _tokenApprovals[tokenId]`.
sstore(approvedAddressSlot, 0)
}
}
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
// Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.
unchecked {
// Updates:
// - `balance -= 1`.
// - `numberBurned += 1`.
//
// We can directly decrement the balance, and increment the number burned.
// This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`.
_packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1;
// Updates:
// - `address` to the last owner.
// - `startTimestamp` to the timestamp of burning.
// - `burned` to `true`.
// - `nextInitialized` to `true`.
_packedOwnerships[tokenId] = _packOwnershipData(
from,
(_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) | _nextExtraData(from, address(0), prevOwnershipPacked)
);
// If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
uint256 nextTokenId = tokenId + 1;
// If the next slot's address is zero and not burned (i.e. packed value is zero).
if (_packedOwnerships[nextTokenId] == 0) {
// If the next slot is within bounds.
if (nextTokenId != _currentIndex) {
// Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
_packedOwnerships[nextTokenId] = prevOwnershipPacked;
}
}
}
}
emit Transfer(from, address(0), tokenId);
_afterTokenTransfers(from, address(0), tokenId, 1);
// Overflow not possible, as `_burnCounter` cannot be exceed `_currentIndex + _spotMinted` times.
unchecked {
_burnCounter++;
}
}
// =============================================================
// EXTRA DATA OPERATIONS
// =============================================================
/**
* @dev Directly sets the extra data for the ownership data `index`.
*/
function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual {
uint256 packed = _packedOwnerships[index];
if (packed == 0) _revert(OwnershipNotInitializedForExtraData.selector);
uint256 extraDataCasted;
// Cast `extraData` with assembly to avoid redundant masking.
assembly {
extraDataCasted := extraData
}
packed = (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) | (extraDataCasted << _BITPOS_EXTRA_DATA);
_packedOwnerships[index] = packed;
}
/**
* @dev Called during each token transfer to set the 24bit `extraData` field.
* Intended to be overridden by the cosumer contract.
*
* `previousExtraData` - the value of `extraData` before transfer.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, `tokenId` will be burned by `from`.
* - `from` and `to` are never both zero.
*/
function _extraData(
address from,
address to,
uint24 previousExtraData
) internal view virtual returns (uint24) {}
/**
* @dev Returns the next extra data for the packed ownership data.
* The returned result is shifted into position.
*/
function _nextExtraData(
address from,
address to,
uint256 prevOwnershipPacked
) private view returns (uint256) {
uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA);
return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA;
}
// =============================================================
// OTHER OPERATIONS
// =============================================================
/**
* @dev Returns the message sender (defaults to `msg.sender`).
*
* If you are writing GSN compatible contracts, you need to override this function.
*/
function _msgSenderERC721A() internal view virtual returns (address) {
return msg.sender;
}
/**
* @dev Converts a uint256 to its ASCII string decimal representation.
*/
function _toString(uint256 value) internal pure virtual returns (string memory str) {
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. Total: 5 * 0x20 = 0xa0.
let m := add(mload(0x40), 0xa0)
// Update the free memory pointer to allocate.
mstore(0x40, m)
// Assign the `str` to the end.
str := sub(m, 0x20)
// Zeroize the slot after the string.
mstore(str, 0)
// Cache the end of the memory to calculate the length later.
let end := str
// We write the string from rightmost digit to leftmost digit.
// The following is essentially a do-while loop that also handles the zero case.
// prettier-ignore
for { let temp := value } 1 {} {
str := sub(str, 1)
// Write the character to the pointer.
// The ASCII index of the '0' character is 48.
mstore8(str, add(48, mod(temp, 10)))
// Keep dividing `temp` until zero.
temp := div(temp, 10)
// prettier-ignore
if iszero(temp) { break }
}
let length := sub(end, str)
// Move the pointer 32 bytes leftwards to make room for the length.
str := sub(str, 0x20)
// Store the length.
mstore(str, length)
}
}
/**
* @dev For more efficient reverts.
*/
function _revert(bytes4 errorSelector) internal pure {
assembly {
mstore(0x00, errorSelector)
revert(0x00, 0x04)
}
}
}// SPDX-License-Identifier: MIT
// ERC721A Contracts v4.3.0
// Creator: Chiru Labs
pragma solidity ^0.8.4;
import '../IERC721A.sol';
/**
* @dev Interface of ERC721ABurnable.
*/
interface IERC721ABurnable is IERC721A {
/**
* @dev Burns `tokenId`. See {ERC721A-_burn}.
*
* Requirements:
*
* - The caller must own `tokenId` or be an approved operator.
*/
function burn(uint256 tokenId) external;
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)
pragma solidity ^0.8.0;
/**
* @dev Standard signed math utilities missing in the Solidity language.
*/
library SignedMath {
/**
* @dev Returns the largest of two signed numbers.
*/
function max(int256 a, int256 b) internal pure returns (int256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two signed numbers.
*/
function min(int256 a, int256 b) internal pure returns (int256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two signed numbers without overflow.
* The result is rounded towards zero.
*/
function average(int256 a, int256 b) internal pure returns (int256) {
// Formula from the book "Hacker's Delight"
int256 x = (a & b) + ((a ^ b) >> 1);
return x + (int256(uint256(x) >> 255) & (a ^ b));
}
/**
* @dev Returns the absolute unsigned value of a signed value.
*/
function abs(int256 n) internal pure returns (uint256) {
unchecked {
// must be unchecked in order to support `n = type(int256).min`
return uint256(n >= 0 ? n : -n);
}
}
}// SPDX-License-Identifier: MIT
// ERC721A Contracts v4.3.0
// Creator: Chiru Labs
pragma solidity ^0.8.4;
/**
* @dev Interface of ERC721A.
*/
interface IERC721A {
/**
* The caller must own the token or be an approved operator.
*/
error ApprovalCallerNotOwnerNorApproved();
/**
* The token does not exist.
*/
error ApprovalQueryForNonexistentToken();
/**
* Cannot query the balance for the zero address.
*/
error BalanceQueryForZeroAddress();
/**
* Cannot mint to the zero address.
*/
error MintToZeroAddress();
/**
* The quantity of tokens minted must be more than zero.
*/
error MintZeroQuantity();
/**
* The token does not exist.
*/
error OwnerQueryForNonexistentToken();
/**
* The caller must own the token or be an approved operator.
*/
error TransferCallerNotOwnerNorApproved();
/**
* The token must be owned by `from`.
*/
error TransferFromIncorrectOwner();
/**
* Cannot safely transfer to a contract that does not implement the
* ERC721Receiver interface.
*/
error TransferToNonERC721ReceiverImplementer();
/**
* Cannot transfer to the zero address.
*/
error TransferToZeroAddress();
/**
* The token does not exist.
*/
error URIQueryForNonexistentToken();
/**
* The `quantity` minted with ERC2309 exceeds the safety limit.
*/
error MintERC2309QuantityExceedsLimit();
/**
* The `extraData` cannot be set on an unintialized ownership slot.
*/
error OwnershipNotInitializedForExtraData();
/**
* `_sequentialUpTo()` must be greater than `_startTokenId()`.
*/
error SequentialUpToTooSmall();
/**
* The `tokenId` of a sequential mint exceeds `_sequentialUpTo()`.
*/
error SequentialMintExceedsLimit();
/**
* Spot minting requires a `tokenId` greater than `_sequentialUpTo()`.
*/
error SpotMintTokenIdTooSmall();
/**
* Cannot mint over a token that already exists.
*/
error TokenAlreadyExists();
/**
* The feature is not compatible with spot mints.
*/
error NotCompatibleWithSpotMints();
// =============================================================
// STRUCTS
// =============================================================
struct TokenOwnership {
// The address of the owner.
address addr;
// Stores the start time of ownership with minimal overhead for tokenomics.
uint64 startTimestamp;
// Whether the token has been burned.
bool burned;
// Arbitrary data similar to `startTimestamp` that can be set via {_extraData}.
uint24 extraData;
}
// =============================================================
// TOKEN COUNTERS
// =============================================================
/**
* @dev Returns the total number of tokens in existence.
* Burned tokens will reduce the count.
* To get the total number of tokens minted, please see {_totalMinted}.
*/
function totalSupply() external view returns (uint256);
// =============================================================
// IERC165
// =============================================================
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
* to learn more about how these ids are created.
*
* This function call must use less than 30000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
// =============================================================
// IERC721
// =============================================================
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables
* (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in `owner`'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`,
* checking first that contract recipients are aware of the ERC721 protocol
* to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be have been allowed to move
* this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement
* {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external payable;
/**
* @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external payable;
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom}
* whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token
* by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external payable;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the
* zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external payable;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom}
* for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
// =============================================================
// IERC721Metadata
// =============================================================
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
// =============================================================
// IERC2309
// =============================================================
/**
* @dev Emitted when tokens in `fromTokenId` to `toTokenId`
* (inclusive) is transferred from `from` to `to`, as defined in the
* [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard.
*
* See {_mintERC2309} for more details.
*/
event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to);
}{
"viaIR": false,
"codegen": "yul",
"remappings": [
"forge-std/=lib/forge-std/src/"
],
"evmVersion": "prague",
"outputSelection": {
"*": {
"*": [
"abi"
]
}
},
"optimizer": {
"enabled": true,
"mode": "3",
"size_fallback": false,
"disable_system_request_memoization": true
},
"metadata": {},
"libraries": {},
"enableEraVMExtensions": true,
"forceEVMLA": false
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[{"internalType":"string","name":"_uri","type":"string"},{"internalType":"address","name":"_owner","type":"address"},{"internalType":"address","name":"_royaltiesReceiver","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AlreadyInitialized","type":"error"},{"inputs":[],"name":"ApprovalCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"ApprovalQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"BalanceQueryForZeroAddress","type":"error"},{"inputs":[],"name":"InvalidQueryRange","type":"error"},{"inputs":[],"name":"MintERC2309QuantityExceedsLimit","type":"error"},{"inputs":[],"name":"MintToZeroAddress","type":"error"},{"inputs":[],"name":"MintZeroQuantity","type":"error"},{"inputs":[],"name":"NewOwnerIsZeroAddress","type":"error"},{"inputs":[],"name":"NoHandoverRequest","type":"error"},{"inputs":[],"name":"NotCompatibleWithSpotMints","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"OwnershipNotInitializedForExtraData","type":"error"},{"inputs":[],"name":"Reentrancy","type":"error"},{"inputs":[],"name":"RoyaltyOverflow","type":"error"},{"inputs":[],"name":"RoyaltyReceiverIsZeroAddress","type":"error"},{"inputs":[],"name":"SequentialMintExceedsLimit","type":"error"},{"inputs":[],"name":"SequentialUpToTooSmall","type":"error"},{"inputs":[],"name":"SpotMintTokenIdTooSmall","type":"error"},{"inputs":[],"name":"TokenAlreadyExists","type":"error"},{"inputs":[],"name":"TransferCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"TransferFromIncorrectOwner","type":"error"},{"inputs":[],"name":"TransferToNonERC721ReceiverImplementer","type":"error"},{"inputs":[],"name":"TransferToZeroAddress","type":"error"},{"inputs":[],"name":"URIQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"Unauthorized","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_fromTokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_toTokenId","type":"uint256"}],"name":"BatchMetadataUpdate","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"fromTokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"toTokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"ConsecutiveTransfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"MetadataUpdate","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"pendingOwner","type":"address"}],"name":"OwnershipHandoverCanceled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"pendingOwner","type":"address"}],"name":"OwnershipHandoverRequested","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"oldOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"_baseTokenSuffix","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_receiver","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"airdrop","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"_receivers","type":"address[]"}],"name":"batchAirdrop","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","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":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"explicitOwnershipOf","outputs":[{"components":[{"internalType":"address","name":"addr","type":"address"},{"internalType":"uint64","name":"startTimestamp","type":"uint64"},{"internalType":"bool","name":"burned","type":"bool"},{"internalType":"uint24","name":"extraData","type":"uint24"}],"internalType":"struct IERC721A.TokenOwnership","name":"ownership","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"explicitOwnershipsOf","outputs":[{"components":[{"internalType":"address","name":"addr","type":"address"},{"internalType":"uint64","name":"startTimestamp","type":"uint64"},{"internalType":"bool","name":"burned","type":"bool"},{"internalType":"uint24","name":"extraData","type":"uint24"}],"internalType":"struct IERC721A.TokenOwnership[]","name":"","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isRevealed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","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":[],"name":"renounceOwnership","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"requestOwnershipHandover","outputs":[],"stateMutability":"payable","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":"tokenId","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":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_new_suffix","type":"string"}],"name":"setBaseTokenSuffix","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_uri","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"_receiver","type":"address"},{"internalType":"uint96","name":"_amount","type":"uint96"}],"name":"setDefaultRoyalty","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_reveal","type":"bool"}],"name":"setIsRevealed","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_maxSupply","type":"uint256"}],"name":"setMaxSupply","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"tokensOfOwner","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"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":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"result","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":[{"internalType":"address payable","name":"_to","type":"address"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]Contract Creation Code
0000000000000000000000000000000000000000000000000000000000000060000000000000000000000000022fa2c8289c39f02f631b1912350a0ff6933269000000000000000000000000ff4f2c41af6bac672164357677466ded6b92dac0000000000000000000000000000000000000000000000000000000000000003368747470733a2f2f697066732e6279656e63727970742e636f6d2f6170692f6d657461646174612f6d657461736861726b732f00000000000000000000000000
Deployed Bytecode
0x0003000000000002000a00000000000200000060031002700000046703300197000200000031035500010000000103550000008004000039000000400040043f00000001002001900000002f0000c13d000000040030008c0000004e0000413d000000000201043b000000e0022002700000047c0020009c000000850000a13d0000047d0020009c000000b60000213d0000048b0020009c0000015a0000213d000004920020009c000001ea0000a13d000004930020009c000002b20000613d000004940020009c000002c30000613d000004950020009c0000004e0000c13d0000000002000416000000000002004b0000004e0000c13d000000240030008c0000004e0000413d0000000401100370000000000101043b000500000001001d0000046e0010009c0000004e0000213d000000000100041a000400000001001d000000000001004b000007580000c13d00000080010000390000006002000039000a00000001001d11960db40000040f000007400000013d0000000002000416000000000002004b0000004e0000c13d0000001f0230003900000468022001970000008002200039000000400020043f0000001f0530018f000004690630019800000080026000390000003f0000613d000000000701034f000000007807043c0000000004840436000000000024004b0000003b0000c13d000000000005004b0000004c0000613d000000000161034f0000000304500210000000000502043300000000054501cf000000000545022f000000000101043b0000010004400089000000000141022f00000000014101cf000000000151019f0000000000120435000000600030008c000000500000813d00000000010000190000119800010430000000800200043d0000046a0020009c0000004e0000213d00000080033000390000009f01200039000000000031004b0000004e0000813d000000800120003900000000010104330000046b0010009c000007260000813d0000001f041000390000046c044001970000003f044000390000046d04400197000000400600043d0000000004460019000000000064004b000000000500003900000001050040390000046a0040009c000007260000213d0000000100500190000007260000c13d000000400040043f000900000006001d0000000004160436000a00000004001d000000a0022000390000000004120019000000000034004b0000004e0000213d000004f8041001970000001f0310018f0000000a09000029000000000092004b000006f00000813d000000000004004b000000810000613d00000000063200190000000005390019000000200550008a000000200660008a0000000007450019000000000846001900000000080804330000000000870435000000200440008c0000007b0000c13d000000000003004b000007060000613d0000000005090019000006fc0000013d000004980020009c000001290000a13d000004990020009c000001b90000213d000004a00020009c0000026e0000a13d000004a10020009c000005fe0000613d000004a20020009c000002d80000613d000004a30020009c0000004e0000c13d0000000002000416000000000002004b0000004e0000c13d000000240030008c0000004e0000413d0000000401100370000000000101043b000a00000001001d0000046e0010009c0000004e0000213d0000047701000041000000000101041a0000000002000411000000000012004b000006ec0000c13d000004db010000410000000000100443000000000100041000000004001004430000000001000414000004670010009c0000046701008041000000c001100210000004dc011001c70000800a02000039119611910000040f000000010020019000000a410000613d000000000301043b0000000001000414000004670010009c0000046701008041000000c001100210000000000003004b000007e20000c13d0000000a02000029000007e60000013d0000047e0020009c000001a10000213d000004850020009c000001fc0000a13d000004860020009c000002ea0000613d000004870020009c000002fb0000613d000004880020009c0000004e0000c13d0000000002000416000000000002004b0000004e0000c13d000000240030008c0000004e0000413d0000000402100370000000000502043b0000046a0050009c0000004e0000213d0000002302500039000000000032004b0000004e0000813d0000000404500039000000000241034f000000000202043b0000046a0020009c000007260000213d0000001f062000390000046c06600197000004bb0060009c000007260000213d00000024055000390000003f066000390000046c066001970000008006600039000000400060043f000000800020043f0000000005520019000000000035004b0000004e0000213d0000002003400039000000000331034f000004f8042001980000001f0520018f000000a001400039000000ea0000613d000000a006000039000000000703034f000000007807043c0000000006860436000000000016004b000000e60000c13d000000000005004b000000f70000613d000000000343034f0000000304500210000000000501043300000000054501cf000000000545022f000000000303043b0000010004400089000000000343022f00000000034301cf000000000353019f0000000000310435000000a00120003900000000000104350000047701000041000000000101041a0000000002000411000000000012004b000006ec0000c13d000000800200043d0000046a0020009c000007260000213d0000000b01000039000000000301041a000000010030019000000001043002700000007f0440618f0000001f0040008c00000000050000390000000105002039000000000335013f00000001003001900000067d0000c13d0000000003000415000000200040008c0000011e0000413d000000000010043f0000001f052000390000000505500270000004bc0550009a000000200020008c000004bd050040410000001f044000390000000504400270000004bc0440009a000000000045004b0000011e0000813d000000000005041b0000000105500039000000000045004b0000011a0000413d0000000004000415000000000343004900000000030000020000001f0020008c00000ad70000a13d000000000010043f000004740420019800000b780000c13d000000a005000039000004bd0300004100000b860000013d000004a60020009c000001cb0000a13d000004a70020009c000002830000a13d000004a80020009c0000066f0000613d000004a90020009c000003230000613d000004aa0020009c0000004e0000c13d000004b2010000410000000c0010043f0000000001000411000000000010043f000004b70100004100000000001004430000000001000414000004670010009c0000046701008041000000c001100210000004b8011001c70000800b02000039119611910000040f000000010020019000000a410000613d000000000101043b000a00000001001d0000000001000414000004670010009c0000046701008041000000c001100210000004b6011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b0000000a02000029000004e70220009a000000000021041b0000000001000414000004670010009c0000046701008041000000c00110021000000478011001c70000800d020000390000000203000039000004e804000041000002ac0000013d0000048c0020009c0000021d0000a13d0000048d0020009c000003280000613d0000048e0020009c000003460000613d0000048f0020009c0000004e0000c13d0000000002000416000000000002004b0000004e0000c13d000000240030008c0000004e0000413d0000000402100370000000000202043b0000046a0020009c0000004e0000213d0000002304200039000000000034004b0000004e0000813d0000000404200039000000000141034f000000000101043b000600000001001d0000046a0010009c0000004e0000213d000500240020003d000000060100002900000005011002100000000501100029000000000031004b0000004e0000213d0000000101000039000000000101041a000000000200041a000800000002001d00000000031200490000000604000029000000000043001a0000031d0000413d00000000014300190000000902000039000000000202041a000000000021004b0000074e0000813d0000047701000041000000000101041a0000000002000411000000000012004b000006ec0000c13d000000000004004b000400000003001d000009920000c13d000000800100003900000000020300190000002003100039000000000023043500000004020000290000000000210435000004670010009c000004670100804100000040011002100000000002000414000004670020009c0000046702008041000000c002200210000000000112019f000004bf011001c70000800d02000039000000010300003900000bcb0000013d0000047f0020009c0000022a0000a13d000004800020009c000003cf0000613d000004810020009c000003fe0000613d000004820020009c0000004e0000c13d0000000002000416000000000002004b0000004e0000c13d000000240030008c0000004e0000413d0000000401100370000000000101043b0000046e0010009c0000004e0000213d000004b2020000410000000c0020043f000000000010043f0000000c010000390000002002000039119611770000040f0000052e0000013d0000049a0020009c000002910000a13d0000049b0020009c000006830000613d0000049c0020009c0000040f0000613d0000049d0020009c0000004e0000c13d0000000002000416000000000002004b0000004e0000c13d000000240030008c0000004e0000413d0000000401100370000000000101043b1196112e0000040f0000046e01100197000002bc0000013d000004ad0020009c000002490000213d000004b00020009c000004a60000613d000004b10020009c0000004e0000c13d0000000002000416000000000002004b0000004e0000c13d000000440030008c0000004e0000413d0000000402100370000000000202043b0000046e0020009c0000004e0000213d0000002401100370000000000101043b000004e50010009c0000004e0000213d0000047703000041000000000303041a0000000004000411000000000034004b000006ec0000c13d000004e503100197000027110030008c000007ff0000413d000004f001000041000000000010043f000004b5010000410000119800010430000004960020009c000004bb0000613d000004970020009c0000004e0000c13d0000000002000416000000000002004b0000004e0000c13d000000240030008c0000004e0000413d0000000401100370000000000101043b000a00000001001d119611240000040f00000009010000390000000a02000029000000000021041b0000000001000019000011970001042e000004890020009c000004c50000613d0000048a0020009c0000004e0000c13d000000840030008c0000004e0000413d0000000402100370000000000202043b000a00000002001d0000046e0020009c0000004e0000213d0000002402100370000000000202043b000900000002001d0000046e0020009c0000004e0000213d0000006402100370000000000402043b0000046a0040009c0000004e0000213d0000002302400039000000000032004b0000004e0000813d0000000402400039000000000221034f000000000202043b0000004401100370000000000101043b000800000001001d000000240140003911960d690000040f00000000040100190000027d0000013d000004900020009c000005080000613d000004910020009c0000004e0000c13d0000000001000416000000000001004b0000004e0000c13d0000047701000041000000000101041a0000046e01100197000000800010043f000004b301000041000011970001042e000004830020009c0000052a0000613d000004840020009c0000004e0000c13d0000000002000416000000000002004b0000004e0000c13d000000440030008c0000004e0000413d0000000402100370000000000202043b0000046e0020009c0000004e0000213d0000002401100370000000000101043b000a00000001001d0000046e0010009c0000004e0000213d000000000020043f0000000701000039000000200010043f00000040020000390000000001000019119611770000040f0000000a0200002911960dc30000040f000000000101041a000000ff001001900000000001000039000000010100c039000002bc0000013d000004ae0020009c000005320000613d000004af0020009c0000004e0000c13d0000000002000416000000000002004b0000004e0000c13d000000240030008c0000004e0000413d0000000401100370000000000201043b000000000100041a000000000021004b000007750000a13d000900000002001d000a00000002001d000000000020043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000000000101041a000000000001004b0000076a0000c13d0000000a02000029000000000002004b000000010220008a000002580000c13d0000031d0000013d000004a40020009c000005500000613d000004a50020009c0000004e0000c13d000000000103001911960d570000040f000a00000001001d000900000002001d000800000003001d000000400100043d000700000001001d000000200200003911960d0b0000040f000000070400002900000000000404350000000a010000290000000902000029000000080300002911960eeb0000040f0000000001000019000011970001042e000004ab0020009c0000059a0000613d000004ac0020009c0000004e0000c13d0000000001000416000000000001004b0000004e0000c13d0000000101000039000000000101041a000000000200041a0000000001120049000000800010043f000004b301000041000011970001042e0000049e0020009c000005f30000613d0000049f0020009c0000004e0000c13d000004b2010000410000000c0010043f0000000001000411000000000010043f0000000001000414000004670010009c0000046701008041000000c001100210000004b6011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000000000001041b0000000001000414000004670010009c0000046701008041000000c00110021000000478011001c70000800d020000390000000203000039000004da0400004100000000050004111196118c0000040f00000001002001900000004e0000613d0000000001000019000011970001042e0000000002000416000000000002004b0000004e0000c13d000000240030008c0000004e0000413d0000000401100370000000000101043b0000046e0010009c0000004e0000213d11960ed30000040f000000400200043d0000000000120435000004670020009c00000467020080410000004001200210000004ba011001c7000011970001042e0000047701000041000000000501041a0000000001000411000000000051004b000006ec0000c13d0000000001000414000004670010009c0000046701008041000000c00110021000000478011001c70000800d020000390000000303000039000004790400004100000000060000191196118c0000040f00000001002001900000004e0000613d0000047701000041000000000001041b0000000001000019000011970001042e0000000002000416000000000002004b0000004e0000c13d000000240030008c0000004e0000413d0000000401100370000000000101043b000a00000001001d000000010010008c0000004e0000213d119611240000040f0000000c01000039000000000201041a000004f9022001970000000a022001af000000000021041b0000000001000019000011970001042e0000000002000416000000000002004b0000004e0000c13d000000240030008c0000004e0000413d0000000401100370000000000101043b119610c90000040f000000400200043d000a00000002001d11960da10000040f0000000a01000029000004670010009c00000467010080410000004001100210000004c8011001c7000011970001042e0000000002000416000000000002004b0000004e0000c13d000000240030008c0000004e0000413d0000000401100370000000000201043b0000000001000415000900000001001d000000000100041a000000000021004b000007980000a13d000800000002001d000a00000002001d000000000020043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000000000101041a000000000001004b000007790000c13d0000000a02000029000000000002004b000000010220008a000003080000c13d000004de01000041000000000010043f0000001101000039000000040010043f000004df010000410000119800010430000000000103001911960d570000040f11960dd30000040f0000000001000019000011970001042e0000000001000416000000000001004b0000004e0000c13d0000000303000039000000000203041a000000010420019000000001012002700000007f0110618f0000001f0010008c00000000050000390000000105002039000000000525013f00000001005001900000067d0000c13d000000800010043f000000000004004b000007340000613d000000000030043f000000000001004b000007320000613d000004cf030000410000000004000019000000000503041a000000a002400039000000000052043500000001033000390000002004400039000000000014004b0000033e0000413d000007390000013d0000000002000416000000000002004b0000004e0000c13d000000640030008c0000004e0000413d0000000402100370000000000202043b000600000002001d0000046e0020009c0000004e0000213d0000004402100370000000000202043b0000002401100370000000000301043b000000000023004b0000075f0000813d000000000100041a000000000012004b0000000002018019000500000002001d0000000601000029000000000001004b0000075b0000613d000a00000003001d000000000010043f0000000501000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000300600000003d000000000301043b0000000a01000029000000050410006b00000acf0000a13d000000000203041a0000046a0220019800000acf0000613d000000000024004b0000000004028019000400000004001d0000000502400210000000400300043d000300000003001d00000000023200190000002002200039000700000002001d000000400020043f119610c90000040f00000040021000390000000002020433000000000002004b0000000003000019000003840000c13d00000000010104330000046e03100197000800000000001d00000000010000190000000a050000290000038d0000013d00000000030000190000000701000029000000400010043f000000010550003900000001010000390000000100100190000003940000613d000000050050006c00000acc0000613d0000000802000029000000040020006c00000acc0000613d000900000003001d000000400100043d000004ce0010009c000007260000213d0000008002100039000000400020043f0000006002100039000000000002043500000040021000390000000000020435000000200210003900000000000204350000000000010435000a00000005001d000000000050043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000400200043d000004ce0020009c0000000a05000029000007260000213d000000000101043b000000000301041a0000006001200039000000e8043002700000000000410435000000a0013002700000046a01100197000000200420003900000000001404350000046e0130019700000000001204350000004002200039000000e00330027000000001033001900000000000320435000003880000c13d000000000001004b000000000301001900000009030060290000046e01300197000000060010006c000003890000c13d00000008010000290000000101100039000800000001001d000000050110021000000003011000290000000000510435000003890000013d000000240030008c0000004e0000413d0000000401100370000000000101043b000a00000001001d0000046e0010009c0000004e0000213d0000047701000041000000000101041a0000000002000411000000000012004b000006ec0000c13d000004b2010000410000000c0010043f0000000a01000029000000000010043f0000000001000414000004670010009c0000046701008041000000c001100210000004b6011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000800000001001d000000000101041a000900000001001d000004b70100004100000000001004430000000001000414000004670010009c0000046701008041000000c001100210000004b8011001c70000800b02000039119611910000040f000000010020019000000a410000613d000000000101043b000000090010006c000008fc0000a13d000004b901000041000000000010043f000004b5010000410000119800010430000000240030008c0000004e0000413d0000000401100370000000000101043b0000046e0010009c0000004e0000213d0000047702000041000000000202041a0000000003000411000000000023004b000006ec0000c13d000000000001004b000008ff0000c13d000004b401000041000000000010043f000004b50100004100001198000104300000000002000416000000000002004b0000004e0000c13d000000240030008c0000004e0000413d0000000402100370000000000202043b0000046a0020009c0000004e0000213d0000002304200039000000000034004b0000004e0000813d000900040020003d0000000901100360000000000101043b0000046a0010009c0000004e0000213d000000050410021000000000024200190000002402200039000000000032004b0000004e0000213d0000000005040019000000800010043f000000a002400039000000400020043f000000000001004b000004620000c13d00000020010000390000000001120436000000800300043d00000000003104350000004001200039000000000003004b000007410000613d000000a0040000390000000005000019000000004604043400000000870604340000046e07700197000000000771043600000000080804330000046a08800197000000000087043500000040076000390000000007070433000000000007004b0000000007000039000000010700c0390000004008100039000000000078043500000060066000390000000006060433000004d7066001970000006007100039000000000067043500000080011000390000000105500039000000000035004b000004340000413d000007410000013d000000000101043b000000000101041a0000008003200039000000400030043f0000006003200039000000e8041002700000000000430435000000e003100270000000010330018f000000400420003900000000003404350000046e031001970000000003320436000000a0011002700000046a011001970000000000130435000000200150008c00000080035000390000000000230435000000400200043d00000000050100190000042b0000613d000004ce0020009c000007260000213d00000009015000290000000101100367000000000301043b0000008001200039000000400010043f0000006001200039000000000001043500000040012000390000000000010435000000200120003900000000000104350000000000020435000000000100041a000000000031004b0000045c0000a13d000800000005001d000a00000003001d000000000030043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000000000101041a000000000001004b000004880000c13d0000000a03000029000000010330008a000004740000013d000000400100043d000004ce0010009c0000000a03000029000007260000213d0000008002100039000000400020043f0000006002100039000000000002043500000040021000390000000000020435000000200210003900000000000204350000000000010435000000000030043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000400200043d000004ce0020009c00000008050000290000044c0000a13d000007260000013d0000000002000416000000000002004b0000004e0000c13d000000240030008c0000004e0000413d0000000401100370000000000201043b000004f1002001980000004e0000c13d0000000101000039000004f20020009c000007630000a13d000004f30020009c000005fb0000613d000004f40020009c000005fb0000613d000004f50020009c000005fb0000613d000000800000043f000004b301000041000011970001042e0000000001000416000000000001004b0000004e0000c13d11960d1d0000040f0000002002000039000000400300043d000a00000003001d000000000223043611960ca40000040f000007400000013d0000000002000416000000000002004b0000004e0000c13d000000440030008c0000004e0000413d0000000402100370000000000202043b000a00000002001d0000046e0020009c0000004e0000213d0000002401100370000000000101043b000000000001004b0000000002000039000000010200c039000900000002001d000000010010008c0000004e0000213d0000000001000411000000000010043f0000000701000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b0000000a02000029000000000020043f000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000000000201041a000004f9022001970000000903000029000000000232019f000000000021041b000000400100043d0000000000310435000004670010009c000004670100804100000040011002100000000002000414000004670020009c0000046702008041000000c002200210000000000112019f00000476011001c70000800d020000390000000303000039000004c90400004100000000050004110000000a06000029000002ad0000013d0000000002000416000000000002004b0000004e0000c13d000000440030008c0000004e0000413d0000000402100370000000000202043b000900000002001d0000046e0020009c0000004e0000213d0000000102000039000000000202041a000000000300041a00000000022300490000002401100370000000000401043b000000000042001a0000031d0000413d00000000014200190000000902000039000000000202041a000000000021004b0000074e0000813d0000047701000041000000000101041a0000000002000411000000000012004b000006ec0000c13d000000000004004b000008050000c13d000004d501000041000000000010043f000004c30100004100001198000104300000000001000416000000000001004b0000004e0000c13d0000000901000039000000000101041a000000800010043f000004b301000041000011970001042e0000000001000416000000000001004b0000004e0000c13d0000000203000039000000000203041a000000010420019000000001012002700000007f0110618f0000001f0010008c00000000050000390000000105002039000000000525013f00000001005001900000067d0000c13d000000800010043f000000000004004b000007340000613d000000000030043f000000000001004b000007320000613d00000473030000410000000004000019000000000503041a000000a002400039000000000052043500000001033000390000002004400039000000000014004b000005480000413d000007390000013d0000000002000416000000000002004b0000004e0000c13d000000440030008c0000004e0000413d0000002402100370000000000202043b000a00000002001d0000000401100370000000000101043b000000000010043f0000047a01000041000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000000000201041a000004e50020009c0000056c0000213d0000047a01000041000000000201041a000004e5012001980000000003000019000000010300c08a000000000313c0d90000000a0030006b0000000003000019000000000301201900000000040000310000000005430019000000000045004b0000004e0000213d000004f8053001980000001f0630018f00000002074003670000000003540019000005810000613d000000000807034f000000008908043c0000000004940436000000000034004b0000057d0000c13d0000006002200270000000000006004b0000058f0000613d000000000457034f0000000305600210000000000603043300000000065601cf000000000656022f000000000404043b0000010005500089000000000454022f00000000045401cf000000000464019f00000000004304350000000a011000b9000027100110011a000000400300043d000000200430003900000000001404350000000000230435000004670030009c00000467030080410000004001300210000004e6011001c7000011970001042e000000440030008c0000004e0000413d0000000402100370000000000202043b000900000002001d0000046e0020009c0000004e0000213d0000002401100370000000000101043b000800000001001d000000000010043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000000000101041a000000000001004b000005cb0000c13d000000000100041a000000080010006c0000074a0000a13d0000000802000029000000010220008a000a00000002001d000000000020043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000000000101041a000000000001004b0000000a02000029000005b80000613d000004c1001001980000074a0000c13d0000046e011001970000000002000411000000000012004b000a00000001001d000008da0000c13d0000000801000029000000000010043f0000000601000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000000000201041a000004eb022001970000000906000029000000000262019f000000000021041b0000000001000414000004670010009c0000046701008041000000c00110021000000478011001c70000800d020000390000000403000039000004ec040000410000000a0500002900000008070000291196118c0000040f00000001002001900000004e0000613d000002b00000013d0000000001000416000000000001004b0000004e0000c13d0000000c01000039000000000101041a000000ff001001900000000001000039000000010100c039000000800010043f000004b301000041000011970001042e0000000002000416000000000002004b0000004e0000c13d000000240030008c0000004e0000413d0000000401100370000000000101043b000900000001001d000000000010043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000000000101041a000000000001004b0000062d0000c13d000000000100041a000000090010006c0000074a0000a13d0000000902000029000000010220008a000a00000002001d000000000020043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000000000101041a000000000001004b0000000a020000290000061a0000613d000004c1001001980000074a0000c13d000a00000001001d0000000901000029000000000010043f0000000601000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d0000000a020000290000046e02200197000000000301043b000000000403041a00000000010004110000046e01100197000000000021004b000800000002001d0000086a0000613d000000000041004b0000086a0000613d000700000001001d000500000004001d000600000003001d000000000020043f0000000701000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b0000000702000029000000000020043f000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000000000101041a000000ff001001900000000802000029000000060300002900000005040000290000086a0000c13d000004e201000041000000000010043f000004c30100004100001198000104300000000001000416000000000001004b0000004e0000c13d0000000b03000039000000000203041a000000010420019000000001012002700000007f0110618f0000001f0010008c00000000050000390000000105002039000000000525013f00000001005001900000072c0000613d000004de01000041000000000010043f0000002201000039000000040010043f000004df0100004100001198000104300000000002000416000000000002004b0000004e0000c13d000000240030008c0000004e0000413d0000000402100370000000000502043b0000046a0050009c0000004e0000213d0000002302500039000000000032004b0000004e0000813d0000000404500039000000000241034f000000000202043b0000046a0020009c000007260000213d0000001f062000390000046c06600197000004bb0060009c000007260000213d00000024055000390000003f066000390000046c066001970000008006600039000000400060043f000000800020043f0000000005520019000000000035004b0000004e0000213d0000002003400039000000000331034f000004f8042001980000001f0520018f000000a001400039000006ad0000613d000000a006000039000000000703034f000000007807043c0000000006860436000000000016004b000006a90000c13d000000000005004b000006ba0000613d000000000343034f0000000304500210000000000501043300000000054501cf000000000545022f000000000303043b0000010004400089000000000343022f00000000034301cf000000000353019f0000000000310435000000a00120003900000000000104350000047701000041000000000101041a0000000002000411000000000012004b000006ec0000c13d000000800200043d0000046a0020009c000007260000213d0000000a01000039000000000301041a000000010030019000000001043002700000007f0440618f0000001f0040008c00000000050000390000000105002039000000000335013f00000001003001900000067d0000c13d0000000003000415000000200040008c000006e10000413d000000000010043f0000001f052000390000000505500270000004d80550009a000000200020008c000004c4050040410000001f044000390000000504400270000004d80440009a000000000045004b000006e10000813d000000000005041b0000000105500039000000000045004b000006dd0000413d0000000004000415000000000343004900000000030000020000001f0020008c00000ae20000a13d000000000010043f000004740420019800000b9f0000c13d000000a005000039000004c40300004100000bad0000013d000004ee01000041000000000010043f000004b50100004100001198000104300000000005490019000000000004004b000006f90000613d0000000006020019000000000709001900000000680604340000000007870436000000000057004b000006f50000c13d000000000003004b000007060000613d00000000024200190000000303300210000000000405043300000000043401cf000000000434022f00000000020204330000010003300089000000000232022f00000000023201cf000000000242019f000000000025043500000000011900190000000000010435000000a00100043d000800000001001d0000046e0010009c0000004e0000213d000000c00100043d000700000001001d0000046e0010009c0000004e0000213d0000000008000415000000400200043d0000046f0020009c000007260000213d0000004001200039000000400010043f0000000d01000039000000000412043600000470010000410000000000140435000000400900043d0000046f0090009c000007260000213d0000004001900039000000400010043f0000000201000039000000000a190436000004710300004100000000003a043500000000030204330000046a0030009c000007b90000a13d000004de01000041000000000010043f0000004101000039000000040010043f000004df010000410000119800010430000000800010043f000000000004004b000007340000613d000000000030043f000000000001004b0000079c0000c13d0000008002000039000007390000013d000004f902200197000000a00020043f000000000001004b000000a0020000390000008002006039000000600220008a000000800100003911960d0b0000040f000000400100043d000a00000001001d000000800200003911960cd60000040f0000000a020000290000000001210049000004670010009c00000467010080410000006001100210000004670020009c00000467020080410000004002200210000000000121019f000011970001042e000004e901000041000000000010043f000004c3010000410000119800010430000004d001000041000000800010043f0000002001000039000000840010043f0000000701000039000000a40010043f000004d101000041000000c40010043f000004d20100004100001198000104300000000501000029000000000001004b000007a60000c13d000004d601000041000000000010043f000004c3010000410000119800010430000004cd01000041000000000010043f000004c3010000410000119800010430000004f60020009c000005fb0000613d000004f70020009c000000000100c019000000800010043f000004b301000041000011970001042e000004c1001001980000000901000029000007750000c13d000000000010043f0000000601000039000000200010043f00000040020000390000000001000019119611770000040f000000000101041a000001c90000013d000004ed01000041000000000010043f000004c3010000410000119800010430000004c100100198000007980000c13d0000000a05000039000000000305041a000000010630019000000001023002700000007f0220618f0000001f0020008c00000000010000390000000101002039000000000131013f00000001001001900000067d0000c13d000000400100043d0000000004210436000000000006004b000009690000613d000000000050043f000000000002004b00000000030000190000096e0000613d000004c40500004100000000030000190000000006340019000000000705041a000000000076043500000001055000390000002003300039000000000023004b000007900000413d0000096e0000013d000004c201000041000000000010043f000004c3010000410000119800010430000004bd030000410000000004000019000000000503041a000000a002400039000000000052043500000001033000390000002004400039000000000014004b0000079e0000413d000007390000013d000000000010043f0000000501000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000000000101041a0000046a02100198000009020000c13d0000006002000039000000400100043d0000002c0000013d000000000501041a000000010750019000000001065002700000007f0660618f0000001f0060008c00000000050000390000000105002039000000000075004b0000067d0000c13d00030000000a001d000600000009001d000200000008001d0000000005000415000000200060008c000007d70000413d000000000010043f0000001f073000390000000507700270000004720770009a000000200030008c00000473070040410000001f066000390000000506600270000004720660009a000000000067004b000007d70000813d000000000007041b0000000107700039000000000067004b000007d30000413d0000000006000415000000000565004900000000050000020000001f0030008c000009870000a13d000000000010043f000004740630019800000a420000c13d0000002005000039000004730400004100000a4e0000013d00000478011001c700008009020000390000000a0400002900000000050000191196118c0000040f00020000000103550000006003100270000004670030019d0000046703300198000008440000c13d0000000100200190000002b00000c13d000000400100043d0000004402100039000004e003000041000000000032043500000024021000390000000f030000390000000000320435000004d0020000410000000000210435000000040210003900000020030000390000000000320435000004670010009c00000467010080410000004001100210000004e1011001c70000119800010430000000000002004b000009630000c13d000004ef01000041000000000010043f000004b5010000410000119800010430000800000004001d000a00000003001d000004b70100004100000000001004430000000001000414000004670010009c0000046701008041000000c001100210000004b8011001c70000800b02000039119611910000040f000000010020019000000a410000613d000000000101043b000700000001001d0000000a01000029000000000010043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d0000000702000029000000a0022002100000000803000029000000010030008c0000000003000019000004ca03006041000000000223019f0000000903000029000000000232019f000000000101043b000000000021041b000000000030043f0000000501000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d0000000802000029000004d3022000d1000000000101043b000000000301041a0000000002230019000000000021041b000000090000006b00000aed0000c13d000004d401000041000000000010043f000004c30100004100001198000104300000001f0430003900000468044001970000003f04400039000004dd04400197000000400500043d0000000004450019000000000054004b000000000600003900000001060040390000046a0040009c000007260000213d0000000100600190000007260000c13d000000400040043f0000001f0430018f0000000006350436000004690530019800000000035600190000085c0000613d000000000701034f000000007807043c0000000006860436000000000036004b000008580000c13d000000000004004b000007ec0000613d000000000151034f0000000304400210000000000503043300000000054501cf000000000545022f000000000101043b0000010004400089000000000141022f00000000014101cf000000000151019f0000000000130435000007ec0000013d000000000004004b0000086d0000613d000000000003041b000000000020043f0000000501000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000000000201041a000004e30220009a000000000021041b000004b70100004100000000001004430000000001000414000004670010009c0000046701008041000000c001100210000004b8011001c70000800b02000039119611910000040f000000010020019000000a410000613d000000000101043b000700000001001d0000000901000029000000000010043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d0000000702000029000000a00220021000000008022001af000004e4022001c7000000000101043b000000000021041b0000000a01000029000004ca00100198000008c60000c13d00000009010000290000000101100039000700000001001d000000000010043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000000000101041a000000000001004b000008c60000c13d000000000100041a000000070010006b000008c60000613d0000000701000029000000000010043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b0000000a02000029000000000021041b0000000001000414000004670010009c0000046701008041000000c00110021000000478011001c70000800d020000390000000403000039000004cc040000410000000805000029000000000600001900000009070000291196118c0000040f00000001002001900000004e0000613d0000000101000039000000000201041a0000000102200039000000000021041b0000000001000019000011970001042e000000000010043f0000000701000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b00000000020004110000046e02200197000000000020043f000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000000000101041a000000ff00100190000005d20000c13d000004ea01000041000000000010043f000004c30100004100001198000104300000000801000029000000000001041b0000000a01000029119611600000040f0000000001000019000011970001042e000000040020006b0000000402004029000300000002001d0000000501200210000000400200043d000800000002001d00000000011200190000002001100039000600000001001d000000400010043f0000000001000019119610c90000040f00000040021000390000000002020433000000000002004b0000000003000019000009150000c13d00000000010104330000046e03100197000700000000001d000000000500001900000000010000190000000802000029000009200000013d000000000300001900000008020000290000000601000029000000400010043f000000010550003900000001010000390000000100100190000009270000613d000000040050006c00000ad30000613d0000000704000029000000030040006c00000ad30000613d000900000003001d000000400100043d000004ce0010009c000007260000213d0000008002100039000000400020043f0000006002100039000000000002043500000040021000390000000000020435000000200210003900000000000204350000000000010435000a00000005001d000000000050043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000400200043d000004ce0020009c0000000a05000029000007260000213d000000000101043b000000000301041a0000006001200039000000e8043002700000000000410435000000a0013002700000046a01100197000000200420003900000000001404350000046e0130019700000000001204350000004002200039000000e003300270000000010330019000000000003204350000091a0000c13d000000000001004b000000000301001900000009030060290000046e01300197000000050010006c00000008020000290000091c0000c13d00000007010000290000000101100039000700000001001d0000000501100210000000000121001900000000005104350000091c0000013d0000006002200210000000000121019f0000047a02000041000000000012041b0000000001000019000011970001042e000004f9033001970000000000340435000000000002004b000000200300003900000000030060390000003f03300039000004f8033001970000000005130019000000000035004b000000000300003900000001030040390000046a0050009c000007260000213d0000000100300190000007260000c13d000000400050043f0000000c03000039000000000303041a000000ff0030019000000be20000613d0000000003010433000000000003004b00000aa10000c13d000004c70050009c000007260000213d0000002001500039000000400010043f0000000002000019000000000105001900000be10000013d000000000003004b000000000200001900000a5a0000613d0000000302300210000004fa0220027f000004fa022001670000000004040433000000000224016f0000000103300210000000000232019f00000a5a0000013d00000000020000190000099c0000013d00000008010000290000000101100039000800000001001d000000000010041b00000007020000290000000102200039000000060020006c00000c680000813d000700000002001d000000050120021000000005011000290000000101100367000000000101043b000900000001001d0000046e0010009c0000004e0000213d000004b7010000410000000000100443000000090000006b000009f10000613d0000000001000414000004670010009c0000046701008041000000c001100210000004b8011001c70000800b02000039119611910000040f000000010020019000000a410000613d000000000101043b000a00000001001d0000000801000029000000000010043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d0000000a02000029000000a0022002100000000903000029000000000223019f000004ca022001c7000000000101043b000000000021041b000000000030043f0000000501000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000000000201041a000004cb0220009a000000000021041b000a00080000002d0000000001000019000009ea0000013d0000000a070000290000000001000414000004670010009c0000046701008041000000c00110021000000478011001c70000800d020000390000000403000039000004cc0400004100000000050000190000000906000029000a00000007001d1196118c0000040f000000010020019000000001010000390000004e0000613d0000000100100190000009da0000613d0000000a07000029000000080070006c000009940000613d0000000107700039000009db0000013d0000047701000041000000000101041a000a00000001001d0000000001000414000004670010009c0000046701008041000000c001100210000004b8011001c70000800b02000039119611910000040f000000010020019000000a410000613d000000000101043b000900000001001d0000000801000029000000000010043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d0000000a020000290000046e032001970000000902000029000000a002200210000000000232019f000004ca022001c7000000000101043b000000000021041b000900000003001d000000000030043f0000000501000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000004e0000613d000000000101043b000000000201041a000004cb0220009a000000000021041b000000090000006b000008400000613d000a00080000002d000000000100001900000a3a0000013d0000000a070000290000000001000414000004670010009c0000046701008041000000c00110021000000478011001c70000800d020000390000000403000039000004cc0400004100000000050000190000000906000029000a00000007001d1196118c0000040f000000010020019000000001010000390000004e0000613d000000010010019000000a2a0000613d0000000a07000029000000080070006c000009940000613d000000010770003900000a2b0000013d000000000001042f00000473040000410000002005000039000000010760008a0000000507700270000004750770009a00000000082500190000000008080433000000000084041b00000020055000390000000104400039000000000074004b00000a470000c13d000000000036004b00000a580000613d0000000306300210000000f80660018f000004fa0660027f000004fa0660016700000000022500190000000002020433000000000262016f000000000024041b000000010230021000000001022001bf000000000021041b0000000001000415000400000001001d00000006010000290000000001010433000500000001001d0000046a0010009c000007260000213d0000000301000039000000000101041a000000010010019000000001021002700000007f0220618f000100000002001d0000001f0020008c00000000020000390000000102002039000000000112013f00000001001001900000067d0000c13d0000000101000029000000200010008c00000a8d0000413d0000000301000039000000000010043f0000000001000414000004670010009c0000046701008041000000c00110021000000476011001c70000801002000039119611910000040f00000001002001900000004e0000613d00000005030000290000001f023000390000000502200270000000200030008c0000000002004019000000000301043b00000001010000290000001f01100039000000050110027000000000011300190000000002230019000000000012004b00000a8d0000813d000000000002041b0000000102200039000000000012004b00000a890000413d0000000501000029000000200010008c00000b0b0000413d0000000301000039000000000010043f0000000001000414000004670010009c0000046701008041000000c00110021000000476011001c70000801002000039119611910000040f00000001002001900000004e0000613d00000005020000290000047402200198000000000101043b00000be60000c13d000000200300003900000bf30000013d000000a003500039000000400030043f0000008003500039000000000003043500000008090000290000000006030019000000090090008c0000000a3990011a000000f807300210000000010360008a0000000008030433000004c508800197000000000787019f000004c6077001c7000000000073043500000aa60000213d00000000056500490000008107500039000000210560008a00000000007504350000000006010433000004f8096001970000001f0860018f000000400100043d0000002007100039000000000074004b00000b180000813d000000000009004b00000ac80000613d000000000b840019000000000a870019000000200aa0008a000000200bb0008a000000000c9a0019000000000d9b0019000000000d0d04330000000000dc0435000000200990008c00000ac20000c13d000000000008004b00000b2e0000613d000000000a07001900000b240000013d000000030100002900000008020000290000000000210435000000400100043d000a00000001001d00000003020000290000002d0000013d00000007010000290000000000120435000000400100043d0000002c0000013d000000000002004b000000000300001900000adb0000613d000000a00300043d0000000304200210000004fa0440027f000004fa04400167000000000343016f0000000102200210000000000223019f00000b910000013d000000000002004b000000000300001900000ae60000613d000000a00300043d0000000304200210000004fa0440027f000004fa04400167000000000343016f0000000102200210000000000223019f00000bb80000013d00000008020000290008000a0020002d000000000100001900000b010000013d0000000a070000290000000001000414000004670010009c0000046701008041000000c00110021000000478011001c70000800d020000390000000403000039000004cc0400004100000000050000190000000906000029000a00000007001d1196118c0000040f000000010020019000000001010000390000004e0000613d000000010010019000000af10000613d0000000a070000290000000107700039000000080070006c00000af20000c13d0000000801000029000000000010041b0000000001000019000011970001042e000000050000006b000000000100001900000c010000613d00000005030000290000000301300210000004fa0110027f000004fa0110016700000003020000290000000002020433000000000112016f0000000102300210000000000121019f00000c010000013d000000000a970019000000000009004b00000b210000613d000000000b040019000000000c07001900000000bd0b0434000000000cdc04360000000000ac004b00000b1d0000c13d000000000008004b00000b2e0000613d0000000004940019000000030880021000000000090a043300000000098901cf000000000989022f00000000040404330000010008800089000000000484022f00000000048401cf000000000494019f00000000004a0435000000000476001900000000000404350000000005050433000004f8075001970000001f0650018f000000000043004b00000b450000813d000000000007004b00000b410000613d00000000096300190000000008640019000000200880008a000000200990008a000000000a780019000000000b790019000000000b0b04330000000000ba0435000000200770008c00000b3b0000c13d000000000006004b00000b5b0000613d000000000804001900000b510000013d0000000008740019000000000007004b00000b4e0000613d0000000009030019000000000a040019000000009b090434000000000aba043600000000008a004b00000b4a0000c13d000000000006004b00000b5b0000613d00000000037300190000000306600210000000000708043300000000076701cf000000000767022f00000000030304330000010006600089000000000363022f00000000036301cf000000000373019f00000000003804350000000003450019000000000003043500000000040004150000000b07000039000000000607041a000000010860019000000001056002700000007f0550618f0000001f0050008c00000000090000390000000109002039000000000969013f00000001009001900000067d0000c13d000000000008004b00000bcd0000613d000000000070043f000000000005004b00000bcf0000613d000004bd0600004100000000070000190000000008370019000000000906041a000000000098043500000001066000390000002007700039000000000057004b00000b700000413d00000bcf0000013d000004bd030000410000002006000039000000010540008a0000000505500270000004be0550009a000000000706001900000080066000390000000006060433000000000063041b00000020067000390000000103300039000000000053004b00000b7d0000c13d000000a005700039000000000024004b00000b8f0000613d0000000304200210000000f80440018f000004fa0440027f000004fa044001670000000005050433000000000445016f000000000043041b000000010220021000000001022001bf000000000021041b0000000103000039000000000103041a000000000200041a0000000001120049000000400200043d000000200420003900000000001404350000000000020435000004670020009c00000467020080410000004001200210000000000200041400000bc50000013d000004c4030000410000002006000039000000010540008a0000000505500270000004d90550009a000000000706001900000080066000390000000006060433000000000063041b00000020067000390000000103300039000000000053004b00000ba40000c13d000000a005700039000000000024004b00000bb60000613d0000000304200210000000f80440018f000004fa0440027f000004fa044001670000000005050433000000000445016f000000000043041b000000010220021000000001022001bf000000000021041b0000000103000039000000000103041a000000000200041a0000000001120049000000400200043d000000200420003900000000001404350000000000020435000004670020009c000004670200804100000040012002100000000002000414000004670020009c0000046702008041000000c002200210000000000112019f000004bf011001c70000800d02000039000004c004000041000002ad0000013d000004f906600197000000000063043500000000060004150000000004640049000000000400000200000000031300490000000003530019000000200430008a00000000004104350000001f03300039000004f8023001970000000002210019000000000012004b000000000300003900000001030040390000046a0020009c000007260000213d0000000100300190000007260000c13d00000040050000390000000000250435000000000200041500000009022000690000000002000002000004bf0000013d000000010320008a0000000503300270000000000431001900000020030000390000000104400039000000060600002900000000056300190000000005050433000000000051041b00000020033000390000000101100039000000000041004b00000bec0000c13d000000050020006c00000bfe0000613d00000005020000290000000302200210000000f80220018f000004fa0220027f000004fa0220016700000006033000290000000003030433000000000223016f000000000021041b0000000501000029000000010110021000000001011001bf0000000303000039000000000013041b000000000100041500000004011000690000000001000002000000000000041b00000477010000410000000806000029000000000061041b0000000001000414000004670010009c0000046701008041000000c00110021000000478011001c70000800d02000039000004790400004100000000050000191196118c0000040f00000001002001900000004e0000613d0000000001000415000600000001001d00000009010000290000000001010433000800000001001d0000046a0010009c000007260000213d0000000a01000039000000000101041a000000010010019000000001021002700000007f0220618f000500000002001d0000001f0020008c00000000020000390000000102002039000000000112013f00000001001001900000067d0000c13d0000000501000029000000200010008c00000c470000413d0000000a01000039000000000010043f0000000001000414000004670010009c0000046701008041000000c00110021000000476011001c70000801002000039119611910000040f00000001002001900000004e0000613d00000008030000290000001f023000390000000502200270000000200030008c0000000002004019000000000301043b00000005010000290000001f01100039000000050110027000000000011300190000000002230019000000000012004b00000c470000813d000000000002041b0000000102200039000000000012004b00000c430000413d0000000801000029000000200010008c00000c5b0000413d0000000a01000039000000000010043f0000000001000414000004670010009c0000046701008041000000c00110021000000476011001c70000801002000039119611910000040f00000001002001900000004e0000613d00000008020000290000047402200198000000000101043b00000c6d0000c13d000000200300003900000c7a0000013d000000080000006b000000000100001900000c880000613d00000008030000290000000301300210000004fa0110027f000004fa011001670000000a020000290000000002020433000000000112016f0000000102300210000000000121019f00000c880000013d0000000101000039000000000101041a0000000802100069000000400100043d000001910000013d000000010320008a0000000503300270000000000431001900000020030000390000000104400039000000090600002900000000056300190000000005050433000000000051041b00000020033000390000000101100039000000000041004b00000c730000c13d000000080020006c00000c850000613d00000008020000290000000302200210000000f80220018f000004fa0220027f000004fa0220016700000009033000290000000003030433000000000223016f000000000021041b0000000801000029000000010110021000000001011001bf0000000a02000039000000000012041b000000000100041500000006011000690000000001000002000000070000006b000008010000613d00000007010000290000006001100210000001f4011001bf0000047a02000041000000000012041b00000d09010000390000000902000039000000000012041b0000000c01000039000000000201041a000004f90220019700000001022001bf000000000021041b0000000001000415000000020110006900000000010000020000002001000039000001000010044300000120000004430000047b01000041000011970001042e00000000430104340000000001320436000004f8063001970000001f0530018f000000000014004b00000cba0000813d000000000006004b00000cb60000613d00000000085400190000000007510019000000200770008a000000200880008a0000000009670019000000000a680019000000000a0a04330000000000a90435000000200660008c00000cb00000c13d000000000005004b00000cd00000613d000000000701001900000cc60000013d0000000007610019000000000006004b00000cc30000613d00000000080400190000000009010019000000008a0804340000000009a90436000000000079004b00000cbf0000c13d000000000005004b00000cd00000613d00000000046400190000000305500210000000000607043300000000065601cf000000000656022f00000000040404330000010005500089000000000454022f00000000045401cf000000000464019f0000000000470435000000000431001900000000000404350000001f03300039000004f8023001970000000001210019000000000001042d0000002003000039000000000331043600000000420204340000000000230435000004f8062001970000001f0520018f0000004001100039000000000014004b00000cef0000813d000000000006004b00000ceb0000613d00000000085400190000000007510019000000200770008a000000200880008a0000000009670019000000000a680019000000000a0a04330000000000a90435000000200660008c00000ce50000c13d000000000005004b00000d050000613d000000000701001900000cfb0000013d0000000007610019000000000006004b00000cf80000613d00000000080400190000000009010019000000008a0804340000000009a90436000000000079004b00000cf40000c13d000000000005004b00000d050000613d00000000046400190000000305500210000000000607043300000000065601cf000000000656022f00000000040404330000010005500089000000000454022f00000000045401cf000000000464019f0000000000470435000000000412001900000000000404350000001f02200039000004f8022001970000000001120019000000000001042d0000001f02200039000004f8022001970000000001120019000000000021004b000000000200003900000001020040390000046a0010009c00000d170000213d000000010020019000000d170000c13d000000400010043f000000000001042d000004de01000041000000000010043f0000004101000039000000040010043f000004df0100004100001198000104300000000a05000039000000000405041a000000010640019000000001024002700000007f0220618f0000001f0020008c00000000010000390000000101002039000000000061004b00000d4b0000c13d000000400100043d0000000003210436000000000006004b00000d380000613d000000000050043f000000000002004b00000d3e0000613d000004c40500004100000000040000190000000006430019000000000705041a000000000076043500000001055000390000002004400039000000000024004b00000d300000413d00000d3f0000013d000004f9044001970000000000430435000000000002004b0000002004000039000000000400603900000d3f0000013d00000000040000190000003f02400039000004f8032001970000000002130019000000000032004b000000000300003900000001030040390000046a0020009c00000d510000213d000000010030019000000d510000c13d000000400020043f000000000001042d000004de01000041000000000010043f0000002201000039000000040010043f000004df010000410000119800010430000004de01000041000000000010043f0000004101000039000000040010043f000004df010000410000119800010430000004fb0010009c00000d670000213d000000630010008c00000d670000a13d00000001030003670000000401300370000000000101043b0000046e0010009c00000d670000213d0000002402300370000000000202043b0000046e0020009c00000d670000213d0000004403300370000000000303043b000000000001042d000000000100001900001198000104300000046b0020009c00000d990000813d00000000040100190000001f012000390000046c011001970000003f011000390000046d05100197000000400100043d0000000005510019000000000015004b000000000600003900000001060040390000046a0050009c00000d990000213d000000010060019000000d990000c13d000000400050043f00000000052104360000000006420019000000000036004b00000d9f0000213d000004f8062001980000001f0720018f0000000104400367000000000365001900000d890000613d000000000804034f0000000009050019000000008a08043c0000000009a90436000000000039004b00000d850000c13d000000000007004b00000d960000613d000000000464034f0000000306700210000000000703043300000000076701cf000000000767022f000000000404043b0000010006600089000000000464022f00000000046401cf000000000474019f000000000043043500000000022500190000000000020435000000000001042d000004de01000041000000000010043f0000004101000039000000040010043f000004df0100004100001198000104300000000001000019000011980001043000000000430104340000046e03300197000000000332043600000000040404330000046a04400197000000000043043500000040031000390000000003030433000000000003004b0000000003000039000000010300c03900000040042000390000000000340435000000600220003900000060011000390000000001010433000004d7011001970000000000120435000000000001042d00000020030000390000000004310436000000000302043300000000003404350000004001100039000000000003004b00000dc20000613d00000000040000190000002002200039000000000502043300000000015104360000000104400039000000000034004b00000dbc0000413d000000000001042d0000046e02200197000000000020043f000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f000000010020019000000dd10000613d000000000101043b000000000001042d000000000100001900001198000104300007000000000002000300000002001d000500000001001d000600000003001d000000000030043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f000000010020019000000ec00000613d000000000101043b000000000101041a000000000001004b00000dfe0000c13d000000000100041a000000060010006c00000ec20000a13d0000000602000029000000010220008a000700000002001d000000000020043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f000000010020019000000ec00000613d000000000101043b000000000101041a000000000001004b000000070200002900000deb0000613d000004c10010019800000ec20000c13d00000005020000290000046e02200197000400000001001d0000046e01100197000700000002001d000000000021004b00000ec60000c13d0000000601000029000000000010043f0000000601000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f000000010020019000000ec00000613d000000000201043b000000000302041a00000000010004110000046e04100197000000070040006c00000e3f0000613d000000000034004b00000e3f0000613d000500000004001d000100000003001d000200000002001d0000000701000029000000000010043f0000000701000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f000000010020019000000ec00000613d000000000101043b0000000502000029000000000020043f000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f000000010020019000000ec00000613d000000000101043b000000000101041a000000ff001001900000000202000029000000010300002900000ecf0000613d000000000003004b00000e420000613d000000000002041b0000000701000029000000000010043f0000000501000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f000000010020019000000ec00000613d000000000101043b000000000201041a000000010220008a000000000021041b00000003010000290000046e01100197000500000001001d000000000010043f0000000501000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f000000010020019000000ec00000613d000000000101043b000000000201041a0000000102200039000000000021041b000004b70100004100000000001004430000000001000414000004670010009c0000046701008041000000c001100210000004b8011001c70000800b02000039119611910000040f000000010020019000000eca0000613d000000000101043b000300000001001d0000000601000029000000000010043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f000000010020019000000ec00000613d0000000302000029000000a00220021000000005022001af000004ca022001c7000000000101043b000000000021041b0000000401000029000004ca0010019800000eaf0000c13d00000006010000290000000101100039000300000001001d000000000010043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f000000010020019000000ec00000613d000000000101043b000000000101041a000000000001004b00000eaf0000c13d000000000100041a000000030010006b00000eaf0000613d0000000301000029000000000010043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f000000010020019000000ec00000613d000000000101043b0000000402000029000000000021041b0000000001000414000004670010009c0000046701008041000000c00110021000000478011001c70000800d020000390000000403000039000004cc040000410000000705000029000000050600002900000006070000291196118c0000040f000000010020019000000ec00000613d000000050000006b00000ecb0000613d000000000001042d00000000010000190000119800010430000004e901000041000000000010043f000004c3010000410000119800010430000004fc01000041000000000010043f000004c3010000410000119800010430000000000001042f000004fd01000041000000000010043f000004c3010000410000119800010430000004e201000041000000000010043f000004c30100004100001198000104300000046e0110019800000ee50000613d000000000010043f0000000501000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f000000010020019000000ee90000613d000000000101043b000000000101041a0000046a01100197000000000001042d000004d601000041000000000010043f000004c3010000410000119800010430000000000100001900001198000104300008000000000002000100000004001d000500000002001d000600000001001d000700000003001d000000000030043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f0000000100200190000010750000613d000000000101043b000000000101041a000000000001004b00000f170000c13d000000000100041a000000070010006c000010780000a13d0000000702000029000000010220008a000800000002001d000000000020043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f0000000100200190000010750000613d000000000101043b000000000101041a000000000001004b000000080200002900000f040000613d000004c100100198000010780000c13d00000006020000290000046e02200197000300000001001d0000046e01100197000800000002001d000000000021004b0000107c0000c13d0000000701000029000000000010043f0000000601000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f0000000100200190000010750000613d000000000301043b000000000403041a00000000010004110000046e02100197000400000002001d000000080020006c00000f580000613d000000040040006b00000f580000613d000200000004001d000600000003001d0000000801000029000000000010043f0000000701000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f0000000100200190000010750000613d000000000101043b0000000402000029000000000020043f000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f0000000100200190000010750000613d000000000101043b000000000101041a000000ff0010019000000006030000290000000204000029000010880000613d000000000004004b00000f5b0000613d000000000003041b0000000801000029000000000010043f0000000501000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f0000000100200190000010750000613d000000000101043b000000000201041a000000010220008a000000000021041b00000005010000290000046e01100197000600000001001d000000000010043f0000000501000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f0000000100200190000010750000613d000000000101043b000000000201041a0000000102200039000000000021041b000004b70100004100000000001004430000000001000414000004670010009c0000046701008041000000c001100210000004b8011001c70000800b02000039119611910000040f0000000100200190000010770000613d000000000101043b000200000001001d0000000701000029000000000010043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f0000000100200190000010750000613d0000000202000029000000a00220021000000006022001af000004ca022001c7000000000101043b000000000021041b0000000301000029000004ca0010019800000fc80000c13d00000007010000290000000101100039000200000001001d000000000010043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f0000000100200190000010750000613d000000000101043b000000000101041a000000000001004b00000fc80000c13d000000000100041a000000020010006b00000fc80000613d0000000201000029000000000010043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f0000000100200190000010750000613d000000000101043b0000000302000029000000000021041b0000000001000414000004670010009c0000046701008041000000c00110021000000478011001c70000800d020000390000000403000039000004cc040000410000000805000029000000060600002900000007070000291196118c0000040f0000000100200190000010750000613d000000060000006b000010800000613d000004fe010000410000000000100443000000050100002900000004001004430000000001000414000004670010009c0000046701008041000000c001100210000004dc011001c70000800202000039119611910000040f0000000100200190000010770000613d000000000101043b000000000001004b000010740000613d0000000001000415000500000001001d000000400b00043d0000006401b000390000008002000039000300000002001d00000000002104350000004401b00039000000070200002900000000002104350000002401b0003900000008020000290000000000210435000004ff0100004100000000001b04350000000401b00039000000040200002900000000002104350000008402b00039000000010100002900000000410104340000000000120435000004f8061001970000001f0510018f000000a403b00039000000000034004b000010130000813d000000000006004b0000100f0000613d00000000085400190000000007530019000000200770008a000000200880008a0000000009670019000000000a680019000000000a0a04330000000000a90435000000200660008c000010090000c13d000000000005004b000010290000613d00000000070300190000101f0000013d0000000007630019000000000006004b0000101c0000613d00000000080400190000000009030019000000008a0804340000000009a90436000000000079004b000010180000c13d000000000005004b000010290000613d00000000046400190000000305500210000000000607043300000000065601cf000000000656022f00000000040404330000010005500089000000000454022f00000000045401cf000000000464019f00000000004704350000001f04100039000004f80240019700000000013100190000000000010435000000a401200039000004670010009c000004670100804100000060011002100000046700b0009c000004670200004100000000020b40190000004002200210000000000121019f0000000002000414000004670020009c0000046702008041000000c002200210000000000121019f000000060200002900080000000b001d1196118c0000040f000000080b00002900000060031002700000046703300197000000200030008c000000200400003900000000040340190000001f0640018f000000200740019000000000057b00190000104e0000613d000000000801034f00000000090b0019000000008a08043c0000000009a90436000000000059004b0000104a0000c13d000000000006004b0000105b0000613d000000000771034f0000000306600210000000000805043300000000086801cf000000000868022f000000000707043b0000010006600089000000000767022f00000000066701cf000000000686019f0000000000650435000000000003001f00020000000103550000000100200190000010840000613d0000001f01400039000000600210018f0000000001b20019000000000021004b000000000200003900000001020040390000046a0010009c000010ba0000213d0000000100200190000010ba0000c13d000000400010043f000000200030008c000010750000413d00000000010b0433000004f100100198000010750000c13d000000000200041500000005022000690000000002000002000004ff0010009c000010b60000c13d000000000001042d00000000010000190000119800010430000000000001042f000004e901000041000000000010043f000004c3010000410000119800010430000004fc01000041000000000010043f000004c3010000410000119800010430000004fd01000041000000000010043f000004c3010000410000119800010430000000000003004b0000108c0000c13d0000006002000039000010b30000013d000004e201000041000000000010043f000004c30100004100001198000104300000001f0230003900000468022001970000003f02200039000004dd04200197000000400200043d0000000004420019000000000024004b000000000500003900000001050040390000046a0040009c000010ba0000213d0000000100500190000010ba0000c13d000000400040043f0000001f0430018f00000000063204360000046905300198000300000006001d0000000003560019000010a60000613d000000000601034f0000000307000029000000006806043c0000000007870436000000000037004b000010a20000c13d000000000004004b000010b30000613d000000000151034f0000000304400210000000000503043300000000054501cf000000000545022f000000000101043b0000010004400089000000000141022f00000000014101cf000000000151019f00000000001304350000000001020433000000000001004b000010c00000c13d0000050001000041000000000010043f000004c3010000410000119800010430000004de01000041000000000010043f0000004101000039000000040010043f000004df0100004100001198000104300000000302000029000004670020009c00000467020080410000004002200210000004670010009c00000467010080410000006001100210000000000121019f000011980001043000010000000000020000000003010019000000400100043d000005010010009c0000111e0000813d0000008002100039000000400020043f0000006002100039000000000002043500000040021000390000000000020435000000200210003900000000000204350000000000010435000000000200041a000000000032004b0000111b0000a13d000100000003001d000000000030043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000111c0000613d000000000101043b000000000101041a000000000001004b000010ee0000c13d0000000103000029000000010330008a000010da0000013d000000400100043d000004ce0010009c00000001030000290000111e0000213d0000008002100039000000400020043f0000006002100039000000000002043500000040021000390000000000020435000000200210003900000000000204350000000000010435000000000030043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000111c0000613d000000000301034f000000400100043d000004ce0010009c0000111e0000213d000000000203043b000000000202041a0000008003100039000000400030043f0000006003100039000000e8042002700000000000430435000000e003200270000000010330018f000000400410003900000000003404350000046e032001970000000003310436000000a0022002700000046a022001970000000000230435000000000001042d00000000010000190000119800010430000004de01000041000000000010043f0000004101000039000000040010043f000004df0100004100001198000104300000047701000041000000000101041a0000000002000411000000000012004b0000112a0000c13d000000000001042d000004ee01000041000000000010043f000004b50100004100001198000104300001000000000002000100000001001d000000000010043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000115a0000613d000000000101043b000000000101041a000000000001004b000011570000c13d000000000100041a0000000102000029000000000021004b0000115c0000a13d000000010220008a000100000002001d000000000020043f0000000401000039000000200010043f0000000001000414000004670010009c0000046701008041000000c001100210000004bf011001c70000801002000039119611910000040f00000001002001900000115a0000613d000000000101043b000000000101041a000000000001004b0000000102000029000011440000613d000004c1001001980000115c0000c13d000000000001042d00000000010000190000119800010430000004e901000041000000000010043f000004c301000041000011980001043000010000000000020000047702000041000000000502041a00000000020004140000046e06100197000004670020009c0000046702008041000000c00120021000000478011001c70000800d0200003900000003030000390000047904000041000100000006001d1196118c0000040f0000000100200190000011740000613d00000477010000410000000102000029000000000021041b000000000001042d00000000010000190000119800010430000000000001042f000004670010009c00000467010080410000004001100210000004670020009c00000467020080410000006002200210000000000112019f0000000002000414000004670020009c0000046702008041000000c002200210000000000112019f00000478011001c70000801002000039119611910000040f00000001002001900000118a0000613d000000000101043b000000000001042d000000000100001900001198000104300000118f002104210000000102000039000000000001042d0000000002000019000000000001042d00001194002104230000000102000039000000000001042d0000000002000019000000000001042d0000119600000432000011970001042e000011980001043000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000ffffffff00000000000000000000000000000000000000000000000000000001ffffffe000000000000000000000000000000000000000000000000000000000ffffffe0000000000000000000000000000000000000000000000000ffffffffffffffff0000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000001ffffffffffffffe0000000000000000000000000000000000000000000000003ffffffffffffffe0000000000000000000000000ffffffffffffffffffffffffffffffffffffffff000000000000000000000000000000000000000000000000ffffffffffffffbf4d657461536861726b734e4654000000000000000000000000000000000000004d53000000000000000000000000000000000000000000000000000000000000bfa87805ed57dc1f0d489ce33be4c4577d74ccde357eeeee058a32c55c44a532405787fa12a823e0f2b7631cc41b3ba8828b3321ca811111fa75cd3aa3bb5ace000000000000000000000000000000000000000000000000ffffffffffffffe0bfa87805ed57dc1f0d489ce33be4c4577d74ccde357eeeee058a32c55c44a5310200000000000000000000000000000000000020000000000000000000000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff7487392702000000000000000000000000000000000000000000000000000000000000008be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e00000000000000000000000000000000000000000000000aa4ec00224afccfdb70000000200000000000000000000000000000040000001000000000000000000000000000000000000000000000000000000000000000000000000006c0360ea00000000000000000000000000000000000000000000000000000000a22cb46400000000000000000000000000000000000000000000000000000000d5abeb0000000000000000000000000000000000000000000000000000000000f04e283d00000000000000000000000000000000000000000000000000000000f04e283e00000000000000000000000000000000000000000000000000000000f2fde38b00000000000000000000000000000000000000000000000000000000fee81cf400000000000000000000000000000000000000000000000000000000d5abeb0100000000000000000000000000000000000000000000000000000000e985e9c500000000000000000000000000000000000000000000000000000000c23dc68e00000000000000000000000000000000000000000000000000000000c23dc68f00000000000000000000000000000000000000000000000000000000c87b56dd00000000000000000000000000000000000000000000000000000000cb173dd900000000000000000000000000000000000000000000000000000000a22cb46500000000000000000000000000000000000000000000000000000000b88d4fde000000000000000000000000000000000000000000000000000000008ba4cc3b0000000000000000000000000000000000000000000000000000000095d89b400000000000000000000000000000000000000000000000000000000095d89b410000000000000000000000000000000000000000000000000000000099a2557a000000000000000000000000000000000000000000000000000000009edfbec9000000000000000000000000000000000000000000000000000000008ba4cc3c000000000000000000000000000000000000000000000000000000008da5cb5b0000000000000000000000000000000000000000000000000000000070a082300000000000000000000000000000000000000000000000000000000070a0823100000000000000000000000000000000000000000000000000000000715018a6000000000000000000000000000000000000000000000000000000008462151c000000000000000000000000000000000000000000000000000000006c0360eb000000000000000000000000000000000000000000000000000000006f8b44b0000000000000000000000000000000000000000000000000000000002a5520590000000000000000000000000000000000000000000000000000000054214f680000000000000000000000000000000000000000000000000000000055f804b20000000000000000000000000000000000000000000000000000000055f804b3000000000000000000000000000000000000000000000000000000005bbb2177000000000000000000000000000000000000000000000000000000006352211e0000000000000000000000000000000000000000000000000000000054214f690000000000000000000000000000000000000000000000000000000054d1f13d0000000000000000000000000000000000000000000000000000000042966c670000000000000000000000000000000000000000000000000000000042966c680000000000000000000000000000000000000000000000000000000049a5980a0000000000000000000000000000000000000000000000000000000051cff8d9000000000000000000000000000000000000000000000000000000002a55205a0000000000000000000000000000000000000000000000000000000042842e0e00000000000000000000000000000000000000000000000000000000095ea7b200000000000000000000000000000000000000000000000000000000197c9d7b00000000000000000000000000000000000000000000000000000000197c9d7c0000000000000000000000000000000000000000000000000000000023b872dd000000000000000000000000000000000000000000000000000000002569296200000000000000000000000000000000000000000000000000000000095ea7b30000000000000000000000000000000000000000000000000000000018160ddd0000000000000000000000000000000000000000000000000000000006fdde020000000000000000000000000000000000000000000000000000000006fdde0300000000000000000000000000000000000000000000000000000000081812fc0000000000000000000000000000000000000000000000000000000001ffc9a70000000000000000000000000000000000000000000000000000000004634d8d00000000000000000000000000000000000000000000000000000000389a75e10000000000000000000000000000000000000020000000800000000000000000000000000000000000000000000000000000000000000000000000007448fbae00000000000000000000000000000000000000040000001c000000000000000002000000000000000000000000000000000000200000000c0000000000000000796b89b91644bc98cd93958e4c9038275d622183e25ac5af08cc6b5d955391320200000200000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000000000000000000006f5e88180000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000ffffffffffffff40fe8a4859c7bd88fc0f24184464406785daae8e84cb1860cc4a4eff72e05fe2470175b7a638427703f0dbe7bb9bbf987a2551717b34e79f33b5b1008d1fa01db9fe8a4859c7bd88fc0f24184464406785daae8e84cb1860cc4a4eff72e05fe24602000000000000000000000000000000000000400000000000000000000000006bd5c950a8d8df17f772f5af37cb3655737899cbf903264b9795592da439661c0000000100000000000000000000000000000000000000000000000000000000a14c4b50000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004000000000000000000000000c65a7bb8d6351c1cf70c95a316cc6a92839c986682d98bc35f958f4883f9d2a800ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff3000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000ffffffffffffffdf000000000000000000000000000000000000008000000000000000000000000017307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c310000000200000000000000000000000000000000000000000000000000000000fffffffffffffffffffffffffffffffffffffffffffffffeffffffffffffffffddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef32c1995a00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000ffffffffffffff7fc2575a0e9e593c00f959f8c92f12db2869c3395a3b0502d05e2516446f71f85b08c379a00000000000000000000000000000000000000000000000000000000021737570706c7900000000000000000000000000000000000000000000000000000000000000000000000000000000000000006400000080000000000000000000000000000000000000000000000000000000000000000100000000000000012e07630000000000000000000000000000000000000000000000000000000000b562e8dd000000000000000000000000000000000000000000000000000000008f4eb604000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000ffffff39a5844729cae3e308f36a5ce933956d7c6367997d26743ca06a70b77c062d5839a5844729cae3e308f36a5ce933956d7c6367997d26743ca06a70b77c062d57fa7b8eab7da67f412cc9575ed43464468f9bfbae89d1675917346ca6d8fe3c929cc7f708afc65944829bd487b90b72536b1951864fbfc14e125fc972a6507f39020000020000000000000000000000000000002400000000000000000000000000000000000000000000000000000000000000000000000000000003ffffffe04e487b710000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000240000000000000000000000005769746864726177206661696c65640000000000000000000000000000000000000000000000000000000000000000000000006400000000000000000000000059c896be00000000000000000000000000000000000000000000000000000000ffffffffffffffffffffffffffffffff0000000000000000000000000000000100000003000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000ffffffffffffffffffffffff0000000000000000000000000000000000000040000000000000000000000000fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd5d00dbf36a107da19e49527a7176a1babf963b4b0ff8cde35ee35d6cd8f1f9ac7e1ddf2d9b4200000000000000000000000000000000000000000000000000000000cfb3b94200000000000000000000000000000000000000000000000000000000ffffffffffffffffffffffff00000000000000000000000000000000000000008c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925cf4700e4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000082b4290000000000000000000000000000000000000000000000000000000000b4457eaa00000000000000000000000000000000000000000000000000000000350a88b300000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff49064905ffffffffffffffffffffffffffffffffffffffffffffffffffffffff49064906000000000000000000000000000000000000000000000000000000005b5e139f0000000000000000000000000000000000000000000000000000000080ac58cd0000000000000000000000000000000000000000000000000000000001ffc9a7000000000000000000000000000000000000000000000000000000002a55205a00000000000000000000000000000000000000000000000000000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe0ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff00ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffa114810000000000000000000000000000000000000000000000000000000000ea553b34000000000000000000000000000000000000000000000000000000001806aa1896bbf26568e884a7374b41e002500962caba6a15023a8d90e8508b83150b7a0200000000000000000000000000000000000000000000000000000000d1a57ed600000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000ffffffffffffff80000000000000000000a2646970667358221220a4fea96fe16d39dad334830f0528383c702d1b9403e9cb664b2db9f305ccab0864736f6c6378247a6b736f6c633a312e352e31353b736f6c633a302e382e33303b6c6c766d3a312e302e320055
Loading...
Loading
Loading...
Loading
Loading...
Loading
Net Worth in USD
$0.00
Net Worth in ETH
0
Multichain Portfolio | 35 Chains
| Chain | Token | Portfolio % | Price | Amount | Value |
|---|
Loading...
Loading
Loading...
Loading
Loading...
Loading
[ Download: CSV Export ]
[ Download: CSV Export ]
A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.