编译器
0.8.14+commit.80d49f37
文件 1 的 12: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 functionCall(target, data, "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");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(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) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(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) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
文件 2 的 12: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 3 的 12:Drop.sol
pragma solidity ^0.8.14;
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "base64-sol/base64.sol";
contract Drop is ERC721, Ownable {
string public nftName;
string public description;
uint256 public tokenIdCounter = 0;
uint256 public tokenPrice;
uint256 public maxSupply;
string public imageUrl;
string public animationUrl;
string public nftUrl;
bool public publicMintEnabled;
uint256 private randomWord;
string[] private choosableTraits;
string[][] private choosableValues;
string[] private randomTraits;
string[][] private randomValues;
uint16[] private traitsChance;
uint256[] private dynamicChance;
uint16[][] private valuesChance;
mapping (uint => uint[]) private chosenTraits;
mapping (uint => uint16[]) private traitIndexes;
mapping (uint => uint8) private foundersArts;
mapping (uint => bool) private hasDynamicTrait;
mapping (uint => uint8) private dynamicTraits;
uint256[] private dynamicTraitTokens;
constructor(
string memory _name,
string memory _description,
string memory _imageUrl,
string memory _animationUrl,
string memory _nftUrl,
string memory _symbol,
uint _tokenPrice,
uint _maxSupply,
string[][][] memory traits,
uint16[][][] memory chances
) ERC721(_name, _symbol) {
require(traits[0][0].length == traits[1].length &&
traits[2][0].length == traits[3].length &&
traits[3].length == chances[0][0].length &&
traits[3].length == chances[2].length, "Invalid metadata");
publicMintEnabled = false;
maxSupply = _maxSupply;
tokenPrice = _tokenPrice;
nftName = _name;
description = _description;
imageUrl = _imageUrl;
animationUrl = _animationUrl;
nftUrl = _nftUrl;
randomWord = uint(keccak256(
abi.encodePacked(block.difficulty, block.timestamp, uint(blockhash(block.number-1)), uint(blockhash(block.number-2)))
));
dynamicTraitTokens = new uint256[](0);
choosableTraits = traits[0][0];
choosableValues = traits[1];
randomTraits = traits[2][0];
randomValues = traits[3];
traitsChance = chances[0][0];
dynamicChance = chances[1][0];
valuesChance = chances[2];
}
function tokensOfOwner(address _owner) external view returns(uint256[] memory ownerTokens) {
uint256 tokenCount = balanceOf(_owner);
if (tokenCount == 0) {
return new uint256[](1);
} else {
uint256[] memory result = new uint256[](tokenCount);
uint256 resultIndex = 0;
for (uint256 i = 1; i < tokenIdCounter + 1;) {
if (ownerOf(i) == _owner) {
result[resultIndex] = i;
resultIndex++;
}
unchecked { ++i; }
}
return result;
}
}
function totalSupply() public view returns (uint) {
return tokenIdCounter;
}
function setName(string memory _name) external onlyOwner {
nftName = _name;
}
function setDescription(string memory _description) external onlyOwner {
description = _description;
}
function setImageUrl(string memory _imageUrl) external onlyOwner {
imageUrl = _imageUrl;
}
function setAnimationUrl(string memory _animationUrl) external onlyOwner {
animationUrl = _animationUrl;
}
function setNftUrl(string memory _nftUrl) external onlyOwner {
nftUrl = _nftUrl;
}
function setTokenPrice(uint _tokenPrice) external onlyOwner {
tokenPrice = _tokenPrice;
}
function setMaxSupply(uint _maxSupply) external onlyOwner {
maxSupply = _maxSupply;
}
function setPublicMintEnabled(bool _publicMintEnabled) external onlyOwner {
publicMintEnabled = _publicMintEnabled;
}
function randomMetadata(uint tokenId) private {
foundersArts[tokenId] = uint8(randomWord % 10);
for (uint16 i; i < traitsChance.length;) {
if (uint(keccak256(
abi.encodePacked(block.difficulty, block.timestamp, randomWord, i, uint(blockhash(block.number-1))
))) % 10000 < traitsChance[i]) {
if (valuesChance[i].length == 1) {
traitIndexes[tokenId].push(i<<8);
} else {
randomWord = uint(keccak256(
abi.encodePacked(uint(blockhash(block.number-1)), randomWord, block.difficulty, block.timestamp, i
))) % 10000;
for (uint16 j; j < valuesChance[i].length;) {
if (randomWord <= valuesChance[i][j]) {
uint16 trait = uint16(j);
trait |= i<<8;
traitIndexes[tokenId].push(trait);
break;
}
unchecked { ++j; }
}
}
}
unchecked { ++i; }
}
}
function clearMonthlyTraits() public onlyOwner {
for (uint256 i; i < dynamicTraitTokens.length;) {
hasDynamicTrait[dynamicTraitTokens[i]] = false;
unchecked { ++i; }
}
dynamicTraitTokens = new uint256[](0);
}
function randomizeMonthlyTraits(uint percentNumerator, uint percentDenominator) public onlyOwner {
for (uint i; i < dynamicChance.length;) {
uint256 expectation = uint(uint(dynamicChance[i] * tokenIdCounter) / uint(10000));
expectation = (expectation * percentNumerator) / percentDenominator;
for (uint j; j < expectation;) {
uint tokenId = (uint(keccak256(
abi.encodePacked(block.difficulty, block.timestamp, randomWord, i, j)
)) % tokenIdCounter) + 1;
if (!hasDynamicTrait[tokenId]) {
hasDynamicTrait[tokenId] = true;
dynamicTraits[tokenId] = uint8(i);
dynamicTraitTokens.push(tokenId);
}
unchecked { ++j; }
}
unchecked { ++i; }
}
}
function publicMint(uint16[] calldata traits) external payable {
require(publicMintEnabled, "Public minting is disabled");
require(msg.sender == tx.origin, "Contracts cannot mint");
require(tokenIdCounter < maxSupply, "Total supply reached");
require(tokenPrice <= msg.value, "Not enough funds");
tokenIdCounter += 1;
chosenTraits[tokenIdCounter] = traits;
randomMetadata(tokenIdCounter);
_mint(_msgSender(), tokenIdCounter);
}
function ownersMint(uint16[] calldata traits, address _address) external onlyOwner {
require(tokenIdCounter < maxSupply, "Total supply reached");
tokenIdCounter += 1;
chosenTraits[tokenIdCounter] = traits;
randomMetadata(tokenIdCounter);
_mint(_address, tokenIdCounter);
}
function tokenURI(uint256 tokenId) public view virtual override(ERC721) returns (string memory) {
string memory encodedMetadata = '';
for (uint i; i < traitIndexes[tokenId].length;) {
encodedMetadata = string(abi.encodePacked(
encodedMetadata,
'{"trait_type":"',
randomTraits[uint8(traitIndexes[tokenId][i]>>8)],
'", "value":"',
randomValues[uint8(traitIndexes[tokenId][i]>>8)][uint8(traitIndexes[tokenId][i])],
'"}',
i == traitIndexes[tokenId].length ? '' : ',')
);
unchecked { ++i; }
}
for (uint i; i < choosableTraits.length;) {
encodedMetadata = string(abi.encodePacked(
encodedMetadata,
'{"trait_type":"',
choosableTraits[i],
'", "value":"',
choosableValues[i][chosenTraits[tokenId][i]],
'"}',
i == choosableTraits.length - 1 ? '' : ',')
);
unchecked { ++i; }
}
if (hasDynamicTrait[tokenId]) {
encodedMetadata = string(abi.encodePacked(
encodedMetadata,
',{"trait_type":"',
"Dynamic Monthly Trait",
'", "value":"',
randomTraits[dynamicTraits[tokenId]],
'"}')
);
}
encodedMetadata = string(abi.encodePacked(
encodedMetadata,
',{"trait_type":"',
"Founders Art",
'", "value":"',
Strings.toString(foundersArts[tokenId]),
'"}')
);
string memory encodedUris = string(abi.encodePacked(
'", "nft_url": "',
nftUrl,
Strings.toString(tokenId),
'", "image": "',
imageUrl,
'", "animation_url": "',
animationUrl)
);
string memory encoded = string(
abi.encodePacked(
'data:application/json;base64,',
Base64.encode(
bytes(
abi.encodePacked(
'{"name":"',
nftName,
' #',
Strings.toString(tokenId),
encodedUris,
'", "attributes": [',
encodedMetadata,
'] }'
)
)
)
)
);
return encoded;
}
function withdraw() public onlyOwner {
Address.sendValue(payable(owner()), address(this).balance);
}
}
文件 4 的 12: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 5 的 12: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";
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: balance query for the zero address");
return _balances[owner];
}
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _owners[tokenId];
require(owner != address(0), "ERC721: owner query for nonexistent token");
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) {
require(_exists(tokenId), "ERC721Metadata: 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 = ERC721.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: 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), "ERC721: approved query for nonexistent token");
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: 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), "ERC721: 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, _data), "ERC721: transfer to non ERC721Receiver implementer");
}
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _owners[tokenId] != address(0);
}
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
require(_exists(tokenId), "ERC721: operator query for nonexistent token");
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);
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
_afterTokenTransfer(address(0), to, tokenId);
}
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId);
_approve(address(0), tokenId);
_balances[owner] -= 1;
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
_afterTokenTransfer(owner, address(0), tokenId);
}
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);
_approve(address(0), tokenId);
_balances[from] -= 1;
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
_afterTokenTransfer(from, to, tokenId);
}
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 _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 tokenId
) internal virtual {}
function _afterTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
}
文件 6 的 12:IERC165.sol
pragma solidity ^0.8.0;
interface IERC165 {
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
文件 7 的 12: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 8 的 12: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 9 的 12: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 10 的 12: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());
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
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 11 的 12:Strings.sol
pragma solidity ^0.8.0;
library Strings {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
function toString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, 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] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
}
文件 12 的 12: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;
}
}
{
"compilationTarget": {
"contracts/Drop.sol": "Drop"
},
"evmVersion": "london",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": false,
"runs": 200
},
"remappings": []
}
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