编译器
0.8.18+commit.87f61d96
文件 1 的 20：Address.sol
pragma solidity ^0.8.1;
library Address {
function isContract(address account) internal view returns (bool) {
return account.code.length > 0;
}
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");
}
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
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");
}
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);
}
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
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);
}
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
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);
}
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
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 {
if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
文件 2 的 20：BitMaps.sol
pragma solidity ^0.8.0;
import "./BitScan.sol";
import "./Popcount.sol";
library BitMaps {
using BitScan for uint256;
uint256 private constant MASK_INDEX_ZERO = (1 << 255);
uint256 private constant MASK_FULL = type(uint256).max;
struct BitMap {
mapping(uint256 => uint256) _data;
}
function get(BitMap storage bitmap, uint256 index) internal view returns (bool) {
uint256 bucket = index >> 8;
uint256 mask = MASK_INDEX_ZERO >> (index & 0xff);
return bitmap._data[bucket] & mask != 0;
}
function setTo(
BitMap storage bitmap,
uint256 index,
bool value
) internal {
if (value) {
set(bitmap, index);
} else {
unset(bitmap, index);
}
}
function set(BitMap storage bitmap, uint256 index) internal {
uint256 bucket = index >> 8;
uint256 mask = MASK_INDEX_ZERO >> (index & 0xff);
bitmap._data[bucket] |= mask;
}
function unset(BitMap storage bitmap, uint256 index) internal {
uint256 bucket = index >> 8;
uint256 mask = MASK_INDEX_ZERO >> (index & 0xff);
bitmap._data[bucket] &= ~mask;
}
function setBatch(BitMap storage bitmap, uint256 startIndex, uint256 amount) internal {
uint256 bucket = startIndex >> 8;
uint256 bucketStartIndex = (startIndex & 0xff);
unchecked {
if(bucketStartIndex + amount < 256) {
bitmap._data[bucket] |= MASK_FULL << (256 - amount) >> bucketStartIndex;
} else {
bitmap._data[bucket] |= MASK_FULL >> bucketStartIndex;
amount -= (256 - bucketStartIndex);
bucket++;
while(amount > 256) {
bitmap._data[bucket] = MASK_FULL;
amount -= 256;
bucket++;
}
bitmap._data[bucket] |= MASK_FULL << (256 - amount);
}
}
}
function unsetBatch(BitMap storage bitmap, uint256 startIndex, uint256 amount) internal {
uint256 bucket = startIndex >> 8;
uint256 bucketStartIndex = (startIndex & 0xff);
unchecked {
if(bucketStartIndex + amount < 256) {
bitmap._data[bucket] &= ~(MASK_FULL << (256 - amount) >> bucketStartIndex);
} else {
bitmap._data[bucket] &= ~(MASK_FULL >> bucketStartIndex);
amount -= (256 - bucketStartIndex);
bucket++;
while(amount > 256) {
bitmap._data[bucket] = 0;
amount -= 256;
bucket++;
}
bitmap._data[bucket] &= ~(MASK_FULL << (256 - amount));
}
}
}
function popcountA(BitMap storage bitmap, uint256 startIndex, uint256 amount) internal view returns(uint256 count) {
uint256 bucket = startIndex >> 8;
uint256 bucketStartIndex = (startIndex & 0xff);
unchecked {
if(bucketStartIndex + amount < 256) {
count += Popcount.popcount256A(
bitmap._data[bucket] & (MASK_FULL << (256 - amount) >> bucketStartIndex)
);
} else {
count += Popcount.popcount256A(
bitmap._data[bucket] & (MASK_FULL >> bucketStartIndex)
);
amount -= (256 - bucketStartIndex);
bucket++;
while(amount > 256) {
count += Popcount.popcount256A(bitmap._data[bucket]);
amount -= 256;
bucket++;
}
count += Popcount.popcount256A(
bitmap._data[bucket] & (MASK_FULL << (256 - amount))
);
}
}
}
function popcountB(BitMap storage bitmap, uint256 startIndex, uint256 amount) internal view returns(uint256 count) {
uint256 bucket = startIndex >> 8;
uint256 bucketStartIndex = (startIndex & 0xff);
unchecked {
if(bucketStartIndex + amount < 256) {
count += Popcount.popcount256B(
bitmap._data[bucket] & (MASK_FULL << (256 - amount) >> bucketStartIndex)
);
} else {
count += Popcount.popcount256B(
bitmap._data[bucket] & (MASK_FULL >> bucketStartIndex)
);
amount -= (256 - bucketStartIndex);
bucket++;
while(amount > 256) {
count += Popcount.popcount256B(bitmap._data[bucket]);
amount -= 256;
bucket++;
}
count += Popcount.popcount256B(
bitmap._data[bucket] & (MASK_FULL << (256 - amount))
);
}
}
}
function scanForward(BitMap storage bitmap, uint256 index) internal view returns (uint256 setBitIndex) {
uint256 bucket = index >> 8;
uint256 bucketIndex = (index & 0xff);
uint256 bb = bitmap._data[bucket];
bb = bb >> (0xff ^ bucketIndex);
if(bb > 0) {
unchecked {
setBitIndex = (bucket << 8) | (bucketIndex - bb.bitScanForward256());
}
} else {
while(true) {
require(bucket > 0, "BitMaps: The set bit before the index doesn't exist.");
unchecked {
bucket--;
}
bb = bitmap._data[bucket];
if(bb > 0) {
unchecked {
setBitIndex = (bucket << 8) | (255 - bb.bitScanForward256());
break;
}
}
}
}
}
function getBucket(BitMap storage bitmap, uint256 bucket) internal view returns (uint256) {
return bitmap._data[bucket];
}
}
文件 3 的 20：BitScan.sol
pragma solidity ^0.8.0;
library BitScan {
uint256 constant private DEBRUIJN_256 = 0x818283848586878898a8b8c8d8e8f929395969799a9b9d9e9faaeb6bedeeff;
bytes constant private LOOKUP_TABLE_256 = hex"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";
function isolateLS1B256(uint256 bb) pure internal returns (uint256) {
require(bb > 0);
unchecked {
return bb & (0 - bb);
}
}
function isolateMS1B256(uint256 bb) pure internal returns (uint256) {
require(bb > 0);
unchecked {
bb |= bb >> 128;
bb |= bb >> 64;
bb |= bb >> 32;
bb |= bb >> 16;
bb |= bb >> 8;
bb |= bb >> 4;
bb |= bb >> 2;
bb |= bb >> 1;
return (bb >> 1) + 1;
}
}
function bitScanForward256(uint256 bb) pure internal returns (uint8) {
unchecked {
return uint8(LOOKUP_TABLE_256[(isolateLS1B256(bb) * DEBRUIJN_256) >> 248]);
}
}
function bitScanReverse256(uint256 bb) pure internal returns (uint8) {
unchecked {
return 255 - uint8(LOOKUP_TABLE_256[((isolateMS1B256(bb) * DEBRUIJN_256) >> 248)]);
}
}
function log2(uint256 bb) pure internal returns (uint8) {
unchecked {
return uint8(LOOKUP_TABLE_256[(isolateMS1B256(bb) * DEBRUIJN_256) >> 248]);
}
}
}
文件 4 的 20：Context.sol
pragma solidity ^0.8.0;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
文件 5 的 20：ERC165.sol
pragma solidity ^0.8.0;
import "./IERC165.sol";
abstract contract ERC165 is IERC165 {
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
文件 6 的 20：ERC721Psi.sol
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol";
import "@openzeppelin/contracts/utils/Context.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
import "@openzeppelin/contracts/utils/introspection/ERC165.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/StorageSlot.sol";
import "solidity-bits/contracts/BitMaps.sol";
contract ERC721Psi is Context, ERC165, IERC721, IERC721Metadata {
using Address for address;
using Strings for uint256;
using BitMaps for BitMaps.BitMap;
BitMaps.BitMap private _batchHead;
string private _name;
string private _symbol;
mapping(uint256 => address) internal _owners;
uint256 private _currentIndex;
mapping(uint256 => address) private _tokenApprovals;
mapping(address => mapping(address => bool)) private _operatorApprovals;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
_currentIndex = _startTokenId();
}
function _startTokenId() internal pure returns (uint256) {
return 0;
}
function _nextTokenId() internal view virtual returns (uint256) {
return _currentIndex;
}
function _totalMinted() internal view virtual returns (uint256) {
return _currentIndex - _startTokenId();
}
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
super.supportsInterface(interfaceId);
}
function balanceOf(address owner)
public
view
virtual
override
returns (uint)
{
require(owner != address(0), "ERC721Psi: balance query for the zero address");
uint count;
for( uint i = _startTokenId(); i < _nextTokenId(); ++i ){
if(_exists(i)){
if( owner == ownerOf(i)){
++count;
}
}
}
return count;
}
function ownerOf(uint256 tokenId)
public
view
virtual
override
returns (address)
{
(address owner, ) = _ownerAndBatchHeadOf(tokenId);
return owner;
}
function _ownerAndBatchHeadOf(uint256 tokenId) internal view returns (address owner, uint256 tokenIdBatchHead){
require(_exists(tokenId), "ERC721Psi: owner query for nonexistent token");
tokenIdBatchHead = _getBatchHead(tokenId);
owner = _owners[tokenIdBatchHead];
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
require(_exists(tokenId), "ERC721Psi: URI query for nonexistent token");
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
function _baseURI() internal view virtual returns (string memory) {
return "";
}
function approve(address to, uint256 tokenId) public virtual override {
address owner = ownerOf(tokenId);
require(to != owner, "ERC721Psi: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721Psi: approve caller is not owner nor approved for all"
);
_approve(to, tokenId);
}
function getApproved(uint256 tokenId)
public
view
virtual
override
returns (address)
{
require(
_exists(tokenId),
"ERC721Psi: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
function setApprovalForAll(address operator, bool approved)
public
virtual
override
{
require(operator != _msgSender(), "ERC721Psi: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
require(
_isApprovedOrOwner(_msgSender(), tokenId),
"ERC721Psi: transfer caller is not owner nor approved"
);
_transfer(from, to, tokenId);
}
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public virtual override {
require(
_isApprovedOrOwner(_msgSender(), tokenId),
"ERC721Psi: transfer caller is not owner nor approved"
);
_safeTransfer(from, to, tokenId, _data);
}
function _safeTransfer(
address from,
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, 1,_data),
"ERC721Psi: transfer to non ERC721Receiver implementer"
);
}
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return tokenId < _nextTokenId() && _startTokenId() <= tokenId;
}
function _isApprovedOrOwner(address spender, uint256 tokenId)
internal
view
virtual
returns (bool)
{
require(
_exists(tokenId),
"ERC721Psi: operator query for nonexistent token"
);
address owner = ownerOf(tokenId);
return (spender == owner ||
getApproved(tokenId) == spender ||
isApprovedForAll(owner, spender));
}
function _safeMint(address to, uint256 quantity) internal virtual {
_safeMint(to, quantity, "");
}
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal virtual {
uint256 nextTokenId = _nextTokenId();
_mint(to, quantity);
require(
_checkOnERC721Received(address(0), to, nextTokenId, quantity, _data),
"ERC721Psi: transfer to non ERC721Receiver implementer"
);
}
function _mint(
address to,
uint256 quantity
) internal virtual {
uint256 nextTokenId = _nextTokenId();
require(quantity > 0, "ERC721Psi: quantity must be greater 0");
require(to != address(0), "ERC721Psi: mint to the zero address");
_beforeTokenTransfers(address(0), to, nextTokenId, quantity);
_currentIndex += quantity;
_owners[nextTokenId] = to;
_batchHead.set(nextTokenId);
_afterTokenTransfers(address(0), to, nextTokenId, quantity);
for(uint256 tokenId=nextTokenId; tokenId < nextTokenId + quantity; tokenId++){
emit Transfer(address(0), to, tokenId);
}
}
function _transfer(
address from,
address to,
uint256 tokenId
) internal virtual {
(address owner, uint256 tokenIdBatchHead) = _ownerAndBatchHeadOf(tokenId);
require(
owner == from,
"ERC721Psi: transfer of token that is not own"
);
require(to != address(0), "ERC721Psi: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
_approve(address(0), tokenId);
uint256 subsequentTokenId = tokenId + 1;
if(!_batchHead.get(subsequentTokenId) &&
subsequentTokenId < _nextTokenId()
) {
_owners[subsequentTokenId] = from;
_batchHead.set(subsequentTokenId);
}
_owners[tokenId] = to;
if(tokenId != tokenIdBatchHead) {
_batchHead.set(tokenId);
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ownerOf(tokenId), to, tokenId);
}
function _checkOnERC721Received(
address from,
address to,
uint256 startTokenId,
uint256 quantity,
bytes memory _data
) private returns (bool r) {
if (to.isContract()) {
r = true;
for(uint256 tokenId = startTokenId; tokenId < startTokenId + quantity; tokenId++){
try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
r = r && retval == IERC721Receiver.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721Psi: transfer to non ERC721Receiver implementer");
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
}
return r;
} else {
return true;
}
}
function _getBatchHead(uint256 tokenId) internal view returns (uint256 tokenIdBatchHead) {
tokenIdBatchHead = _batchHead.scanForward(tokenId);
}
function totalSupply() public virtual view returns (uint256) {
return _totalMinted();
}
function tokensOfOwner(address owner) external view virtual returns (uint256[] memory) {
unchecked {
uint256 tokenIdsIdx;
uint256 tokenIdsLength = balanceOf(owner);
uint256[] memory tokenIds = new uint256[](tokenIdsLength);
for (uint256 i = _startTokenId(); tokenIdsIdx != tokenIdsLength; ++i) {
if (_exists(i)) {
if (ownerOf(i) == owner) {
tokenIds[tokenIdsIdx++] = i;
}
}
}
return tokenIds;
}
}
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}文件 7 的 20：ERC721PsiBurnable.sol
pragma solidity ^0.8.0;
import "solidity-bits/contracts/BitMaps.sol";
import "../ERC721Psi.sol";
abstract contract ERC721PsiBurnable is ERC721Psi {
using BitMaps for BitMaps.BitMap;
BitMaps.BitMap private _burnedToken;
function _burn(uint256 tokenId) internal virtual {
address from = ownerOf(tokenId);
_beforeTokenTransfers(from, address(0), tokenId, 1);
_burnedToken.set(tokenId);
emit Transfer(from, address(0), tokenId);
_afterTokenTransfers(from, address(0), tokenId, 1);
}
function _exists(uint256 tokenId) internal view override virtual returns (bool){
if(_burnedToken.get(tokenId)) {
return false;
}
return super._exists(tokenId);
}
function totalSupply() public view virtual override returns (uint256) {
return _totalMinted() - _burned();
}
function _burned() internal view returns (uint256 burned){
uint256 startBucket = _startTokenId() >> 8;
uint256 lastBucket = (_nextTokenId() >> 8) + 1;
for(uint256 i=startBucket; i < lastBucket; i++) {
uint256 bucket = _burnedToken.getBucket(i);
burned += _popcount(bucket);
}
}
function _popcount(uint256 x) private pure returns (uint256 count) {
unchecked{
for (count=0; x!=0; count++)
x &= x - 1;
}
}
}文件 8 的 20：IERC165.sol
pragma solidity ^0.8.0;
interface IERC165 {
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
文件 9 的 20：IERC721.sol
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
interface IERC721 is IERC165 {
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
function balanceOf(address owner) external view returns (uint256 balance);
function ownerOf(uint256 tokenId) external view returns (address owner);
function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;
function safeTransferFrom(address from, address to, uint256 tokenId) external;
function transferFrom(address from, address to, uint256 tokenId) external;
function approve(address to, uint256 tokenId) external;
function setApprovalForAll(address operator, bool approved) external;
function getApproved(uint256 tokenId) external view returns (address operator);
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
文件 10 的 20：IERC721Metadata.sol
pragma solidity ^0.8.0;
import "../IERC721.sol";
interface IERC721Metadata is IERC721 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function tokenURI(uint256 tokenId) external view returns (string memory);
}
文件 11 的 20：IERC721Receiver.sol
pragma solidity ^0.8.0;
interface IERC721Receiver {
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
文件 12 的 20：Math.sol
pragma solidity ^0.8.0;
library Math {
enum Rounding {
Down,
Up,
Zero
}
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
function average(uint256 a, uint256 b) internal pure returns (uint256) {
return (a & b) + (a ^ b) / 2;
}
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
return a == 0 ? 0 : (a - 1) / b + 1;
}
function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
unchecked {
uint256 prod0;
uint256 prod1;
assembly {
let mm := mulmod(x, y, not(0))
prod0 := mul(x, y)
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
if (prod1 == 0) {
return prod0 / denominator;
}
require(denominator > prod1, "Math: mulDiv overflow");
uint256 remainder;
assembly {
remainder := mulmod(x, y, denominator)
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
uint256 twos = denominator & (~denominator + 1);
assembly {
denominator := div(denominator, twos)
prod0 := div(prod0, twos)
twos := add(div(sub(0, twos), twos), 1)
}
prod0 |= prod1 * twos;
uint256 inverse = (3 * denominator) ^ 2;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
result = prod0 * inverse;
return result;
}
}
function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 result = 1 << (log2(a) >> 1);
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
}
}
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
}
}
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10 ** 64) {
value /= 10 ** 64;
result += 64;
}
if (value >= 10 ** 32) {
value /= 10 ** 32;
result += 32;
}
if (value >= 10 ** 16) {
value /= 10 ** 16;
result += 16;
}
if (value >= 10 ** 8) {
value /= 10 ** 8;
result += 8;
}
if (value >= 10 ** 4) {
value /= 10 ** 4;
result += 4;
}
if (value >= 10 ** 2) {
value /= 10 ** 2;
result += 2;
}
if (value >= 10 ** 1) {
result += 1;
}
}
return result;
}
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
}
}
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
}
}
}
文件 13 的 20：MerkleProof.sol
pragma solidity ^0.8.0;
library MerkleProof {
function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
return processProof(proof, leaf) == root;
}
function verifyCalldata(bytes32[] calldata proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
return processProofCalldata(proof, leaf) == root;
}
function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
bytes32 computedHash = leaf;
for (uint256 i = 0; i < proof.length; i++) {
computedHash = _hashPair(computedHash, proof[i]);
}
return computedHash;
}
function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {
bytes32 computedHash = leaf;
for (uint256 i = 0; i < proof.length; i++) {
computedHash = _hashPair(computedHash, proof[i]);
}
return computedHash;
}
function multiProofVerify(
bytes32[] memory proof,
bool[] memory proofFlags,
bytes32 root,
bytes32[] memory leaves
) internal pure returns (bool) {
return processMultiProof(proof, proofFlags, leaves) == root;
}
function multiProofVerifyCalldata(
bytes32[] calldata proof,
bool[] calldata proofFlags,
bytes32 root,
bytes32[] memory leaves
) internal pure returns (bool) {
return processMultiProofCalldata(proof, proofFlags, leaves) == root;
}
function processMultiProof(
bytes32[] memory proof,
bool[] memory proofFlags,
bytes32[] memory leaves
) internal pure returns (bytes32 merkleRoot) {
uint256 leavesLen = leaves.length;
uint256 totalHashes = proofFlags.length;
require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof");
bytes32[] memory hashes = new bytes32[](totalHashes);
uint256 leafPos = 0;
uint256 hashPos = 0;
uint256 proofPos = 0;
for (uint256 i = 0; i < totalHashes; i++) {
bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
bytes32 b = proofFlags[i]
? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
: proof[proofPos++];
hashes[i] = _hashPair(a, b);
}
if (totalHashes > 0) {
unchecked {
return hashes[totalHashes - 1];
}
} else if (leavesLen > 0) {
return leaves[0];
} else {
return proof[0];
}
}
function processMultiProofCalldata(
bytes32[] calldata proof,
bool[] calldata proofFlags,
bytes32[] memory leaves
) internal pure returns (bytes32 merkleRoot) {
uint256 leavesLen = leaves.length;
uint256 totalHashes = proofFlags.length;
require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof");
bytes32[] memory hashes = new bytes32[](totalHashes);
uint256 leafPos = 0;
uint256 hashPos = 0;
uint256 proofPos = 0;
for (uint256 i = 0; i < totalHashes; i++) {
bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
bytes32 b = proofFlags[i]
? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
: proof[proofPos++];
hashes[i] = _hashPair(a, b);
}
if (totalHashes > 0) {
unchecked {
return hashes[totalHashes - 1];
}
} else if (leavesLen > 0) {
return leaves[0];
} else {
return proof[0];
}
}
function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {
return a < b ? _efficientHash(a, b) : _efficientHash(b, a);
}
function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
assembly {
mstore(0x00, a)
mstore(0x20, b)
value := keccak256(0x00, 0x40)
}
}
}
文件 14 的 20：Ownable.sol
pragma solidity ^0.8.0;
import "../utils/Context.sol";
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_transferOwnership(_msgSender());
}
modifier onlyOwner() {
_checkOwner();
_;
}
function owner() public view virtual returns (address) {
return _owner;
}
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
文件 15 的 20：Popcount.sol
pragma solidity ^0.8.0;
library Popcount {
uint256 private constant m1 = 0x5555555555555555555555555555555555555555555555555555555555555555;
uint256 private constant m2 = 0x3333333333333333333333333333333333333333333333333333333333333333;
uint256 private constant m4 = 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f;
uint256 private constant h01 = 0x0101010101010101010101010101010101010101010101010101010101010101;
function popcount256A(uint256 x) internal pure returns (uint256 count) {
unchecked{
for (count=0; x!=0; count++)
x &= x - 1;
}
}
function popcount256B(uint256 x) internal pure returns (uint256) {
if (x == type(uint256).max) {
return 256;
}
unchecked {
x -= (x >> 1) & m1;
x = (x & m2) + ((x >> 2) & m2);
x = (x + (x >> 4)) & m4;
x = (x * h01) >> 248;
}
return x;
}
}文件 16 的 20：SignedMath.sol
pragma solidity ^0.8.0;
library SignedMath {
function max(int256 a, int256 b) internal pure returns (int256) {
return a > b ? a : b;
}
function min(int256 a, int256 b) internal pure returns (int256) {
return a < b ? a : b;
}
function average(int256 a, int256 b) internal pure returns (int256) {
int256 x = (a & b) + ((a ^ b) >> 1);
return x + (int256(uint256(x) >> 255) & (a ^ b));
}
function abs(int256 n) internal pure returns (uint256) {
unchecked {
return uint256(n >= 0 ? n : -n);
}
}
}
文件 17 的 20：StorageSlot.sol
pragma solidity ^0.8.0;
library StorageSlot {
struct AddressSlot {
address value;
}
struct BooleanSlot {
bool value;
}
struct Bytes32Slot {
bytes32 value;
}
struct Uint256Slot {
uint256 value;
}
struct StringSlot {
string value;
}
struct BytesSlot {
bytes value;
}
function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
assembly {
r.slot := slot
}
}
function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
assembly {
r.slot := slot
}
}
function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
assembly {
r.slot := slot
}
}
function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
assembly {
r.slot := slot
}
}
function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
assembly {
r.slot := slot
}
}
function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
assembly {
r.slot := store.slot
}
}
function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
assembly {
r.slot := slot
}
}
function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
assembly {
r.slot := store.slot
}
}
}
文件 18 的 20：Strings.sol
pragma solidity ^0.8.0;
import "./math/Math.sol";
import "./math/SignedMath.sol";
library Strings {
bytes16 private constant _SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
function toString(uint256 value) internal pure returns (string memory) {
unchecked {
uint256 length = Math.log10(value) + 1;
string memory buffer = new string(length);
uint256 ptr;
assembly {
ptr := add(buffer, add(32, length))
}
while (true) {
ptr--;
assembly {
mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
}
value /= 10;
if (value == 0) break;
}
return buffer;
}
}
function toString(int256 value) internal pure returns (string memory) {
return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value))));
}
function toHexString(uint256 value) internal pure returns (string memory) {
unchecked {
return toHexString(value, Math.log256(value) + 1);
}
}
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
function equal(string memory a, string memory b) internal pure returns (bool) {
return keccak256(bytes(a)) == keccak256(bytes(b));
}
}
文件 19 的 20：base64.sol
pragma solidity >=0.6.0;
library Base64 {
string internal constant TABLE_ENCODE = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
bytes internal constant TABLE_DECODE = hex"0000000000000000000000000000000000000000000000000000000000000000"
hex"00000000000000000000003e0000003f3435363738393a3b3c3d000000000000"
hex"00000102030405060708090a0b0c0d0e0f101112131415161718190000000000"
hex"001a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132330000000000";
function encode(bytes memory data) internal pure returns (string memory) {
if (data.length == 0) return '';
string memory table = TABLE_ENCODE;
uint256 encodedLen = 4 * ((data.length + 2) / 3);
string memory result = new string(encodedLen + 32);
assembly {
mstore(result, encodedLen)
let tablePtr := add(table, 1)
let dataPtr := data
let endPtr := add(dataPtr, mload(data))
let resultPtr := add(result, 32)
for {} lt(dataPtr, endPtr) {}
{
dataPtr := add(dataPtr, 3)
let input := mload(dataPtr)
mstore8(resultPtr, mload(add(tablePtr, and(shr(18, input), 0x3F))))
resultPtr := add(resultPtr, 1)
mstore8(resultPtr, mload(add(tablePtr, and(shr(12, input), 0x3F))))
resultPtr := add(resultPtr, 1)
mstore8(resultPtr, mload(add(tablePtr, and(shr( 6, input), 0x3F))))
resultPtr := add(resultPtr, 1)
mstore8(resultPtr, mload(add(tablePtr, and( input, 0x3F))))
resultPtr := add(resultPtr, 1)
}
switch mod(mload(data), 3)
case 1 { mstore(sub(resultPtr, 2), shl(240, 0x3d3d)) }
case 2 { mstore(sub(resultPtr, 1), shl(248, 0x3d)) }
}
return result;
}
function decode(string memory _data) internal pure returns (bytes memory) {
bytes memory data = bytes(_data);
if (data.length == 0) return new bytes(0);
require(data.length % 4 == 0, "invalid base64 decoder input");
bytes memory table = TABLE_DECODE;
uint256 decodedLen = (data.length / 4) * 3;
bytes memory result = new bytes(decodedLen + 32);
assembly {
let lastBytes := mload(add(data, mload(data)))
if eq(and(lastBytes, 0xFF), 0x3d) {
decodedLen := sub(decodedLen, 1)
if eq(and(lastBytes, 0xFFFF), 0x3d3d) {
decodedLen := sub(decodedLen, 1)
}
}
mstore(result, decodedLen)
let tablePtr := add(table, 1)
let dataPtr := data
let endPtr := add(dataPtr, mload(data))
let resultPtr := add(result, 32)
for {} lt(dataPtr, endPtr) {}
{
dataPtr := add(dataPtr, 4)
let input := mload(dataPtr)
let output := add(
add(
shl(18, and(mload(add(tablePtr, and(shr(24, input), 0xFF))), 0xFF)),
shl(12, and(mload(add(tablePtr, and(shr(16, input), 0xFF))), 0xFF))),
add(
shl( 6, and(mload(add(tablePtr, and(shr( 8, input), 0xFF))), 0xFF)),
and(mload(add(tablePtr, and( input , 0xFF))), 0xFF)
)
)
mstore(resultPtr, shl(232, output))
resultPtr := add(resultPtr, 3)
}
}
return result;
}
}
文件 20 的 20：sbt_contract.sol
pragma solidity >=0.8.17 <0.9.0;
import { Base64 } from 'base64-sol/base64.sol';
import "erc721psi/contracts/extension/ERC721PsiBurnable.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";
interface iTokenURI {
function tokenURI(uint256 _tokenId) external view returns (string memory);
}
contract SBTContract is Ownable, ERC721PsiBurnable {
constructor(
) ERC721Psi("LLAC NFT Seminar Jun. 14, 2023", "LNS") {
setUseSingleMetadata(true);
setMetadataTitle("LLAC NFT Seminar Jun. 14, 2023");
setMetadataDescription("Thank you for coming to the LLAC NFT Seminar Jun. 14, 2023");
setMetadataAttributes("poap");
setImageURI("https://arweave.net/e8io-ibwTP-4ssPjSPh9lyDFrRDLY72RllCp7ZJIsms");
setCost(0);
_safeMint(msg.sender, 1);
setIsSBT(true);
setMerkleRoot(0xf4b91a140e83b0b36a91b2ff68bbbd4b0050e924f045e0e83709e8ff9cc89c65);
setPause(false);
}
address public withdrawAddress = 0xdEcf4B112d4120B6998e5020a6B4819E490F7db6;
function setWithdrawAddress(address _withdrawAddress) public onlyOwner {
withdrawAddress = _withdrawAddress;
}
function withdraw() public payable onlyOwner {
(bool os, ) = payable(withdrawAddress).call{value: address(this).balance}('');
require(os);
}
uint256 public cost = 0;
uint256 public maxSupply = 9999;
uint256 public maxMintAmountPerTransaction = 100;
uint256 public publicSaleMaxMintAmountPerAddress = 300;
bool public paused = true;
bool public onlyAllowlisted = true;
bool public mintCount = true;
bool public burnAndMintMode = false;
uint256 public allowlistType = 0;
bytes32 public merkleRoot;
uint256 public saleId = 0;
mapping(uint256 => mapping(address => uint256)) public userMintedAmount;
mapping(uint256 => mapping(address => uint256)) public allowlistUserAmount;
modifier callerIsUser() {
require(tx.origin == msg.sender, "The caller is another contract.");
_;
}
function mint(uint256 _mintAmount , uint256 _maxMintAmount , bytes32[] calldata _merkleProof , uint256 ) public payable callerIsUser{
require(!paused, "the contract is paused");
require(0 < _mintAmount, "need to mint at least 1 NFT");
require(_mintAmount <= maxMintAmountPerTransaction, "max mint amount per session exceeded");
require( _nextTokenId() -1 + _mintAmount <= maxSupply , "max NFT limit exceeded");
require(cost * _mintAmount <= msg.value, "insufficient funds");
uint256 maxMintAmountPerAddress;
if(onlyAllowlisted == true) {
if(allowlistType == 0){
bytes32 leaf = keccak256( abi.encodePacked(msg.sender, _maxMintAmount) );
require(MerkleProof.verify(_merkleProof, merkleRoot, leaf), "user is not allowlisted");
maxMintAmountPerAddress = _maxMintAmount;
}else if(allowlistType == 1){
require( allowlistUserAmount[saleId][msg.sender] != 0 , "user is not allowlisted");
maxMintAmountPerAddress = allowlistUserAmount[saleId][msg.sender];
}
}else{
maxMintAmountPerAddress = publicSaleMaxMintAmountPerAddress;
}
if(mintCount == true){
require(_mintAmount <= maxMintAmountPerAddress - userMintedAmount[saleId][msg.sender] , "max NFT per address exceeded");
userMintedAmount[saleId][msg.sender] += _mintAmount;
}
_safeMint(msg.sender, _mintAmount);
}
function airdropMint(address[] calldata _airdropAddresses , uint256[] memory _UserMintAmount) public onlyOwner{
uint256 _mintAmount = 0;
for (uint256 i = 0; i < _UserMintAmount.length; i++) {
_mintAmount += _UserMintAmount[i];
}
require(0 < _mintAmount , "need to mint at least 1 NFT");
require(totalSupply() + _mintAmount <= maxSupply, "max NFT limit exceeded");
for (uint256 i = 0; i < _UserMintAmount.length; i++) {
_safeMint(_airdropAddresses[i], _UserMintAmount[i] );
}
}
function setMerkleRoot(bytes32 _merkleRoot) public onlyOwner {
merkleRoot = _merkleRoot;
}
function setPause(bool _state) public onlyOwner {
paused = _state;
}
function setAllowListType(uint256 _type)public onlyOwner{
require( _type == 0 || _type == 1 , "Allow list type error");
allowlistType = _type;
}
function setAllowlistMapping(uint256 _saleId , address[] memory addresses, uint256[] memory saleSupplies) public onlyOwner {
require(addresses.length == saleSupplies.length);
for (uint256 i = 0; i < addresses.length; i++) {
allowlistUserAmount[_saleId][addresses[i]] = saleSupplies[i];
}
}
function getAllowlistUserAmount(address _address ) public view returns(uint256){
return allowlistUserAmount[saleId][_address];
}
function getUserMintedAmountBySaleId(uint256 _saleId , address _address ) public view returns(uint256){
return userMintedAmount[_saleId][_address];
}
function getUserMintedAmount(address _address ) public view returns(uint256){
return userMintedAmount[saleId][_address];
}
function setSaleId(uint256 _saleId) public onlyOwner {
saleId = _saleId;
}
function setMaxSupply(uint256 _maxSupply) public onlyOwner() {
maxSupply = _maxSupply;
}
function setPublicSaleMaxMintAmountPerAddress(uint256 _publicSaleMaxMintAmountPerAddress) public onlyOwner() {
publicSaleMaxMintAmountPerAddress = _publicSaleMaxMintAmountPerAddress;
}
function setCost(uint256 _newCost) public onlyOwner {
cost = _newCost;
}
function setOnlyAllowlisted(bool _state) public onlyOwner {
onlyAllowlisted = _state;
}
function setMaxMintAmountPerTransaction(uint256 _maxMintAmountPerTransaction) public onlyOwner {
maxMintAmountPerTransaction = _maxMintAmountPerTransaction;
}
function setMintCount(bool _state) public onlyOwner {
mintCount = _state;
}
string public baseURI;
string public baseExtension = ".json";
function _baseURI() internal view virtual override returns (string memory) {
return baseURI;
}
function setBaseURI(string memory _newBaseURI) public onlyOwner {
baseURI = _newBaseURI;
}
function setBaseExtension(string memory _newBaseExtension) public onlyOwner {
baseExtension = _newBaseExtension;
}
iTokenURI public interfaceOfTokenURI;
bool public useInterfaceMetadata = false;
function setInterfaceOfTokenURI(address _address) public onlyOwner() {
interfaceOfTokenURI = iTokenURI(_address);
}
function setUseInterfaceMetadata(bool _useInterfaceMetadata) public onlyOwner() {
useInterfaceMetadata = _useInterfaceMetadata;
}
bool public useSingleMetadata = false;
string public imageURI;
string public metadataTitle;
string public metadataDescription;
string public metadataAttributes;
bool public useAnimationUrl = false;
string public animationURI;
function setUseSingleMetadata(bool _useSingleMetadata) public onlyOwner() {
useSingleMetadata = _useSingleMetadata;
}
function setMetadataTitle(string memory _metadataTitle) public onlyOwner {
metadataTitle = _metadataTitle;
}
function setMetadataDescription(string memory _metadataDescription) public onlyOwner {
metadataDescription = _metadataDescription;
}
function setMetadataAttributes(string memory _metadataAttributes) public onlyOwner {
metadataAttributes = _metadataAttributes;
}
function setImageURI(string memory _ImageURI) public onlyOwner {
imageURI = _ImageURI;
}
function setUseAnimationUrl(bool _useAnimationUrl) public onlyOwner() {
useAnimationUrl = _useAnimationUrl;
}
function setAnimationURI(string memory _animationURI) public onlyOwner {
animationURI = _animationURI;
}
function tokenURI(uint256 tokenId) public view override returns (string memory) {
if (useInterfaceMetadata == true) {
return interfaceOfTokenURI.tokenURI(tokenId);
}
if(useSingleMetadata == true){
return string( abi.encodePacked( 'data:application/json;base64,' , Base64.encode(
abi.encodePacked(
'{',
'"name":"' , metadataTitle ,'",' ,
'"description":"' , metadataDescription , '",' ,
'"image": "' , imageURI , '",' ,
useAnimationUrl==true ? string(abi.encodePacked('"animation_url": "' , animationURI , '",')) :"" ,
'"attributes":[{"trait_type":"type","value":"' , metadataAttributes , '"}]',
'}'
)
) ) );
}
return string(abi.encodePacked(ERC721Psi.tokenURI(tokenId), baseExtension));
}
bool public isSBT = false;
function setIsSBT(bool _state) public onlyOwner {
isSBT = _state;
}
function _beforeTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity) internal virtual override{
require( isSBT == false || from == address(0) || to == address(0x000000000000000000000000000000000000dEaD), "transfer is prohibited");
super._beforeTokenTransfers(from, to, startTokenId, quantity);
}
function setApprovalForAll(address operator, bool approved) public virtual override {
require( isSBT == false || approved == false , "setApprovalForAll is prohibited");
super.setApprovalForAll(operator, approved);
}
function approve(address operator, uint256 tokenId) public virtual override {
require( isSBT == false , "approve is prohibited");
super.approve(operator, tokenId);
}
mapping(address => AddressData) _addressData;
struct AddressData {
uint64 balance;
uint64 numberMinted;
uint64 numberBurned;
uint64 aux;
}
function balanceOf(address _owner)
public
view
virtual
override
returns (uint)
{
require(_owner != address(0), "ERC721Psi: balance query for the zero address");
return uint256(_addressData[_owner].balance);
}
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal override virtual {
require(quantity < 2 ** 64);
uint64 _quantity = uint64(quantity);
if(from != address(0)){
_addressData[from].balance -= _quantity;
} else {
_addressData[to].numberMinted += _quantity;
}
if(to != address(0)){
_addressData[to].balance += _quantity;
} else {
_addressData[from].numberBurned += _quantity;
}
super._afterTokenTransfers(from, to, startTokenId, quantity);
}
}{
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