文件 1 的 1：dRYFTERC721Enumerable.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;
}
function _contextSuffixLength() internal view virtual returns (uint256) {
return 0;
}
}
pragma solidity ^0.8.0;
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);
}
}
pragma solidity ^0.8.0;
interface IERC165 {
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
pragma solidity ^0.8.0;
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);
}
pragma solidity ^0.8.0;
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);
}
pragma solidity ^0.8.0;
interface IERC721Receiver {
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
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);
}
}
}
pragma solidity ^0.8.0;
abstract contract ERC165 is IERC165 {
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
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);
}
}
}
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);
}
}
}
pragma solidity ^0.8.0;
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));
}
}
pragma solidity ^0.8.0;
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
using Address for address;
using Strings for uint256;
string private _name;
string private _symbol;
mapping(uint256 => address) private _owners;
mapping(address => uint256) private _balances;
mapping(uint256 => address) private _tokenApprovals;
mapping(address => mapping(address => bool)) private _operatorApprovals;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
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 (uint256) {
require(owner != address(0), "ERC721: address zero is not a valid owner");
return _balances[owner];
}
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _ownerOf(tokenId);
require(owner != address(0), "ERC721: invalid token ID");
return owner;
}
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) {
_requireMinted(tokenId);
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 = 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);
}
function getApproved(uint256 tokenId) public view virtual override returns (address) {
_requireMinted(tokenId);
return _tokenApprovals[tokenId];
}
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_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), "ERC721: caller is not token owner or 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), "ERC721: caller is not token owner or 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, data), "ERC721: transfer to non ERC721Receiver implementer");
}
function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
return _owners[tokenId];
}
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _ownerOf(tokenId) != address(0);
}
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);
}
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
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"
);
}
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);
require(!_exists(tokenId), "ERC721: token already minted");
unchecked {
_balances[to] += 1;
}
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
_afterTokenTransfer(address(0), to, tokenId, 1);
}
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId, 1);
owner = ERC721.ownerOf(tokenId);
delete _tokenApprovals[tokenId];
unchecked {
_balances[owner] -= 1;
}
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
_afterTokenTransfer(owner, address(0), tokenId, 1);
}
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);
require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
delete _tokenApprovals[tokenId];
unchecked {
_balances[from] -= 1;
_balances[to] += 1;
}
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
_afterTokenTransfer(from, to, tokenId, 1);
}
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
}
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);
}
function _requireMinted(uint256 tokenId) internal view virtual {
require(_exists(tokenId), "ERC721: invalid token ID");
}
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 {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
function _beforeTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}
function _afterTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}
function __unsafe_increaseBalance(address account, uint256 amount) internal {
_balances[account] += amount;
}
}
pragma solidity ^0.8.0;
interface IERC721Enumerable is IERC721 {
function totalSupply() external view returns (uint256);
function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256);
function tokenByIndex(uint256 index) external view returns (uint256);
}
pragma solidity ^0.8.0;
abstract contract ERC721Enumerable is ERC721, IERC721Enumerable {
mapping(address => mapping(uint256 => uint256)) private _ownedTokens;
mapping(uint256 => uint256) private _ownedTokensIndex;
uint256[] private _allTokens;
mapping(uint256 => uint256) private _allTokensIndex;
function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) {
return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId);
}
function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) {
require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds");
return _ownedTokens[owner][index];
}
function totalSupply() public view virtual override returns (uint256) {
return _allTokens.length;
}
function tokenByIndex(uint256 index) public view virtual override returns (uint256) {
require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds");
return _allTokens[index];
}
function _beforeTokenTransfer(
address from,
address to,
uint256 firstTokenId,
uint256 batchSize
) internal virtual override {
super._beforeTokenTransfer(from, to, firstTokenId, batchSize);
if (batchSize > 1) {
revert("ERC721Enumerable: consecutive transfers not supported");
}
uint256 tokenId = firstTokenId;
if (from == address(0)) {
_addTokenToAllTokensEnumeration(tokenId);
} else if (from != to) {
_removeTokenFromOwnerEnumeration(from, tokenId);
}
if (to == address(0)) {
_removeTokenFromAllTokensEnumeration(tokenId);
} else if (to != from) {
_addTokenToOwnerEnumeration(to, tokenId);
}
}
function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
uint256 length = ERC721.balanceOf(to);
_ownedTokens[to][length] = tokenId;
_ownedTokensIndex[tokenId] = length;
}
function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
_allTokensIndex[tokenId] = _allTokens.length;
_allTokens.push(tokenId);
}
function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {
uint256 lastTokenIndex = ERC721.balanceOf(from) - 1;
uint256 tokenIndex = _ownedTokensIndex[tokenId];
if (tokenIndex != lastTokenIndex) {
uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];
_ownedTokens[from][tokenIndex] = lastTokenId;
_ownedTokensIndex[lastTokenId] = tokenIndex;
}
delete _ownedTokensIndex[tokenId];
delete _ownedTokens[from][lastTokenIndex];
}
function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
uint256 lastTokenIndex = _allTokens.length - 1;
uint256 tokenIndex = _allTokensIndex[tokenId];
uint256 lastTokenId = _allTokens[lastTokenIndex];
_allTokens[tokenIndex] = lastTokenId;
_allTokensIndex[lastTokenId] = tokenIndex;
delete _allTokensIndex[tokenId];
_allTokens.pop();
}
}
pragma solidity ^0.8.0;
contract ERC721Holder is IERC721Receiver {
function onERC721Received(address, address, uint256, bytes memory) public virtual override returns (bytes4) {
return this.onERC721Received.selector;
}
}
pragma solidity ^0.8.0;
abstract contract ReentrancyGuard {
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
_status = _ENTERED;
}
function _nonReentrantAfter() private {
_status = _NOT_ENTERED;
}
function _reentrancyGuardEntered() internal view returns (bool) {
return _status == _ENTERED;
}
}
pragma solidity ^0.8.0;
interface IERC20 {
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address to, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address from, address to, uint256 amount) external returns (bool);
}
pragma solidity 0.8.24;
abstract contract dRYFTErrors {
error CannotChangeMaxSupply();
error CannotChangeTokenWrapAmount();
error ExceedsMaxSupply();
error InactivedRYFT();
error InsufficientdRYFTsToWrap();
error InvalidFeeRate();
error InvalidMaxSupply();
error InvalidTokenId();
error InvalidTokenWrapAmount();
error SupplyMinted();
error SwapSameToken();
error TokenWrapAmountIsZero();
error UnwrapZeroAmount();
error WrapByProxyOnly();
error WrapZeroAmount();
error ZeroAddress();
}
pragma solidity 0.8.24;
abstract contract dRYFT_721Enumerable is
dRYFTErrors,
ERC721Enumerable,
ERC721Holder,
Ownable,
ReentrancyGuard
{
using Strings for uint256;
string public baseURI;
event Unwrap(address indexed sender, uint256[] tokenIds);
event Wrap(address indexed sender, uint256 amount);
constructor(
string memory name_,
string memory symbol_,
string memory baseURI_
) ERC721(name_, symbol_) {
baseURI = baseURI_;
}
function unwrap(uint256[] calldata tokenIds_) public virtual nonReentrant {}
function wrap(uint256 amount_) public virtual nonReentrant {}
function setURI(string memory newURI_) public virtual onlyOwner {
baseURI = newURI_;
}
function tokenURI(
uint256 tokenId_
) public view override returns (string memory) {
if (!_exists(tokenId_)) revert InvalidTokenId();
return
bytes(baseURI).length > 0
? string(
abi.encodePacked(baseURI, tokenId_.toString(), ".json")
)
: "";
}
}
pragma solidity 0.8.24;
contract dRYFTERC721Enumerable is dRYFT_721Enumerable {
address public feeRecipient;
address public wrapToken;
uint256 public maxSupply;
uint256 public swapFeeRate;
uint256 public swapFeeAmount;
uint256 public tokenWrapAmount;
uint256 public unwrapFeeAmount;
uint256 public unwrapFeeRate;
uint256 public wrapFeeAmount;
uint256 public wrapFeeRate;
event BaseURI(string indexed baseURI_);
event SetFeeRecipient(address indexed feeRecipient_);
event SetTokenWrapAmount(uint256 indexed tokenWrapAmount_);
event Swap(
address indexed sender,
uint256 indexed tokenIdToSwap_,
uint256 indexed tokenIdToReceive_
);
modifier addressNotZero(address address_) {
if (address_ == address(0)) revert ZeroAddress();
_;
}
constructor(
string memory name_,
string memory symbol_,
string memory baseURI_,
uint256 maxSupply_,
address feeRecipient_,
address wrapToken_,
uint256 wrapFeeRate_,
uint256 unwrapFeeRate_,
uint256 swapFeeRate_
)
addressNotZero(feeRecipient_)
addressNotZero(wrapToken_)
dRYFT_721Enumerable(name_, symbol_, baseURI_)
{
maxSupply = maxSupply_;
feeRecipient = feeRecipient_;
wrapToken = wrapToken_;
wrapFeeRate = wrapFeeRate_;
unwrapFeeRate = unwrapFeeRate_;
swapFeeRate = swapFeeRate_;
}
function mintSupply(uint256 amount_) external onlyOwner {
uint256 bal = balanceOf(address(this));
if (bal == maxSupply) revert SupplyMinted();
if (bal + amount_ > maxSupply) {
amount_ = maxSupply - bal;
}
for (uint256 i; i < amount_; ++i) {
_mint(address(this), bal + i);
}
}
function setFeeRecipient(
address feeRecipient_
) external addressNotZero(feeRecipient_) onlyOwner {
feeRecipient = feeRecipient_;
emit SetFeeRecipient(feeRecipient_);
}
function setTokenWrapAmount(uint256 tokenWrapAmount_) external onlyOwner {
if (balanceOf(address(this)) < maxSupply)
revert CannotChangeTokenWrapAmount();
tokenWrapAmount = tokenWrapAmount_;
wrapFeeAmount = (tokenWrapAmount_ * wrapFeeRate) / 10000;
unwrapFeeAmount = (tokenWrapAmount_ * unwrapFeeRate) / 10000;
swapFeeAmount = (tokenWrapAmount_ * swapFeeRate) / 10000;
emit SetTokenWrapAmount(tokenWrapAmount_);
}
function swap(uint256 tokenIdToSwap_, uint256 tokenIdToReceive_) external nonReentrant {
if (tokenIdToSwap_ == tokenIdToReceive_) revert SwapSameToken();
if (swapFeeAmount > 0) {
IERC20(wrapToken).transferFrom(
msg.sender,
feeRecipient,
swapFeeAmount
);
}
safeTransferFrom(msg.sender, address(this), tokenIdToSwap_);
_safeTransfer(address(this), msg.sender, tokenIdToReceive_, "");
emit Swap(msg.sender, tokenIdToSwap_, tokenIdToReceive_);
}
function unwrap(uint256[] calldata tokenIds_) public override nonReentrant {
if (tokenIds_.length == 0) revert UnwrapZeroAmount();
uint256 _count = tokenIds_.length;
for (uint256 x; x < _count; ++x) {
safeTransferFrom(msg.sender, address(this), tokenIds_[x]);
}
uint256 userAmount = tokenWrapAmount * _count;
if (unwrapFeeAmount > 0) {
uint256 feeAmount = unwrapFeeAmount * _count;
userAmount -= feeAmount + (wrapFeeAmount * _count);
IERC20(wrapToken).transfer(feeRecipient, feeAmount);
}
IERC20(wrapToken).transfer(msg.sender, userAmount);
emit Unwrap(msg.sender, tokenIds_);
}
function wrap(uint256 amount_) public override nonReentrant {
_wrap(new uint256[](0), amount_);
}
function wrapTokenIds(uint256[] memory tokenIds_) public nonReentrant {
_wrap(tokenIds_, 0);
}
function _wrap(uint256[] memory tokenIds_, uint256 amount_) private {
uint256 _count = tokenIds_.length;
if (_count == 0 && amount_ == 0) revert WrapZeroAmount();
if (tokenWrapAmount == 0) revert TokenWrapAmountIsZero();
uint256 bal = balanceOf(address(this));
if (_count > bal || amount_ > bal) revert ExceedsMaxSupply();
bool isTokenIds = _count > 0;
uint256 _tokenCount = isTokenIds ? _count : amount_;
uint256 totalWrapAmount = _tokenCount * tokenWrapAmount;
IERC20(wrapToken).transferFrom(
msg.sender,
address(this),
totalWrapAmount
);
if (wrapFeeAmount > 0) {
uint256 feeAmount = wrapFeeAmount * _tokenCount;
IERC20(wrapToken).transfer(feeRecipient, feeAmount);
}
for (uint256 i; i < _tokenCount; ++i) {
uint256 tokenId = isTokenIds
? tokenIds_[i]
: tokenOfOwnerByIndex(address(this), 0);
_safeTransfer(address(this), msg.sender, tokenId, "");
}
emit Wrap(msg.sender, _tokenCount);
}
}
