Solidity Smart Contract解析错误帮助-包含完整合约
Solidity Smart Contract解析错误帮助-包含完整合约
提问于 2021-09-09 17:00:02
我将在合同期满时收到一封ParseError。我已经检查并尝试了重新格式化、编辑、删除和三重检查大括号，但我找不到这个问题。可能是我遗漏了一些简单的东西，我只是无法追查到它。编译器在这里期望的是什么？我已经把合同包括在下面了。如果你需要更多的信息，请告诉我。
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
contract Contract is ERC721, Ownable {
uint256 public constant maxTokens = 6969;
uint256 public constant maxMintsPerTx = 10;
uint256 public tokenPrice = 20000000000000000; //0.02 ether
uint256 public startingBlock =999999999;
string private _contractURI;
string public provenance;
uint256 public nextTokenId=1;
bool public devMintLocked = false;
bool private initialized = false;
string[] private wrap = [
"three"
];
string[] private paper = [
"two"
];
string[] private second = [
"one"
];
string[] private first = [
"one"
];
string[] private format = [
"one"
];
string[] private next = [
"one"
];
string[] private suffixes = [
"one"
];
string[] private namePrefixes = [
"two"
];
string[] private nameSuffixes = [
"one"
];
function random(string memory input) internal pure returns (uint256) {
return uint256(keccak256(abi.encodePacked(input)));
}
function getWrap(uint256 tokenId) public view returns (string memory) {
return pluck(tokenId, "WRAP", wrap);
}
function getPaper(uint256 tokenId) public view returns (string memory) {
return pluck(tokenId, "PAPER", paper);
}
function getSecond(uint256 tokenId) public view returns (string memory) {
return pluck(tokenId, "SECOND", second);
}
function getFirst(uint256 tokenId) public view returns (string memory) {
return pluck(tokenId, "FIRST", first);
}
function getFormat(uint256 tokenId) public view returns (string memory) {
return pluck(tokenId, "FORMAT", format);
}
function getNext(uint256 tokenId) public view returns (string memory) {
return pluck(tokenId, "NEXT", next);
}
function pluck(uint256 tokenId, string memory keyPrefix, string[] memory sourceArray) internal view returns (string memory) {
uint256 rand = random(string(abi.encodePacked(keyPrefix, toString(tokenId))));
string memory output = sourceArray[rand % sourceArray.length];
uint256 greatness = rand % 21;
if (greatness > 14) {
output = string(abi.encodePacked(output, " ", suffixes[rand % suffixes.length]));
}
if (greatness >= 19) {
string[2] memory name;
name[0] = namePrefixes[rand % namePrefixes.length];
name[1] = nameSuffixes[rand % nameSuffixes.length];
if (greatness == 19) {
output = string(abi.encodePacked('"', name[0], ' ', name[1], '" ', output));
} else {
output = string(abi.encodePacked('"', name[0], ' ', name[1], '" ', output, " +1"));
}
}
return output;
}
function tokenURI(uint256 tokenId) override public view returns (string memory) {
string[17] memory parts;
parts[0] = '<svg xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMinYMin meet" viewBox="0 0 400 400"><style>.base { fill: #71FF7B; font-family: "Roboto Mono"; font-size: 10px; }</style><rect width="100%" height="100%" fill="#06420D" /><text x="10" y="20" class="base">';
parts[1] = getWrap(tokenId);
parts[2] = '</text><text x="10" y="40" class="base">';
parts[3] = getPaper(tokenId);
parts[4] = '</text><text x="10" y="60" class="base">';
parts[5] = getSecond(tokenId);
parts[6] = '</text><text x="10" y="80" class="base">';
parts[7] = getFirst(tokenId);
parts[8] = '</text><text x="10" y="100" class="base">';
parts[9] = getFormat(tokenId);
parts[10] = '</text><text x="10" y="120" class="base">';
parts[11] = getNext(tokenId);
parts[13] = '</text></svg>';
string memory output = string(abi.encodePacked(parts[0], parts[1], parts[2], parts[3], parts[4], parts[5], parts[6], parts[7], parts[8]));
output = string(abi.encodePacked(output, parts[9], parts[10], parts[11], parts[12], parts[13], parts[14], parts[15], parts[16]));
string memory json = Base64.encode(bytes(string(abi.encodePacked('{"name": "Mint #', toString(tokenId), '", "description": "Welcome to the contract. Be healthy, be happy. Do whatever you want with these. WAGMI.", "image": "data:image/svg+xml;base64,', Base64.encode(bytes(output)), '"}'))));
output = string(abi.encodePacked('data:application/json;base64,', json));
return output;
}
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT license
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
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);
}
constructor()
public
ERC721("Contract", "CONTRACT") {}
}
//Set Base URI
function setBaseURI(string memory _baseURI)
external
onlyOwner
{
_setBaseURI(_baseURI);
}
//Set Contract-level URI
function setContractURI(string memory contractURI_)
external
onlyOwner
{
_contractURI = contractURI_;
}
//View Contract-level URI
function contractURI()
public
view
returns (string memory)
{
return _contractURI;
}
//Provenance may only be set once irreversibly
function setProvenance(string memory _provenance)
external
onlyOwner
{
require(
bytes(provenance).length == 0,
"Provenance already set!"
);
provenance = _provenance;
}
//Minting
function reup(uint256 quantity)
external
payable
{
require(
block.number >= startingBlock,
"Sale hasn't started yet!"
);
require(
quantity <= maxMintsPerTx,
"There is a limit on minting too many at a time."
);
require(
nextTokenId -1 + quantity <= maxTokens ,
"Minting this many would exceed supply."
);
require(
msg.value >= tokenPrice * quantity,
"Not enough ether sent."
);
require(
msg.sender == tx.origin,
"No contracts."
);
for (uint256 i = 0; i < quantity; i++) {
_safeMint(msg.sender, nextTokenId++);
}
}
//Dev mint special tokens
function mintSpecial(address [] memory recipients, uint256 [] memory specialId)
external
onlyOwner
{
require (!devMintLocked,
"Dev Mint Permanently Locked"
);
for (uint256 i = 0; i < recipients.length; i++) {
require (specialId[i]!=0);
_safeMint(recipients[i],specialId[i]*1000000);
}
}
function setStartingBlock(uint256 _startingBlock)
public
onlyOwner
{
startingBlock=_startingBlock;
}
function lockDevMint()
public
onlyOwner
{
devMintLocked=true;
}
}回答 1
Stack Overflow用户
发布于 2021-09-09 23:52:51
我修复了错误的}
// SPDX-License-Identifier: AFL-3.0
pragma solidity ^0.8.7;
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
contract Contract is ERC721, Ownable {
uint256 public constant maxTokens = 6969;
uint256 public constant maxMintsPerTx = 10;
uint256 public tokenPrice = 20000000000000000; //0.02 ether
uint256 public startingBlock =999999999;
string private _contractURI;
string public provenance;
uint256 public nextTokenId=1;
bool public devMintLocked = false;
bool private initialized = false;
string[] private wrap = [
"three"
];
string[] private paper = [
"two"
];
string[] private second = [
"one"
];
string[] private first = [
"one"
];
string[] private format = [
"one"
];
string[] private next = [
"one"
];
string[] private suffixes = [
"one"
];
string[] private namePrefixes = [
"two"
];
string[] private nameSuffixes = [
"one"
];
function random(string memory input) internal pure returns (uint256) {
return uint256(keccak256(abi.encodePacked(input)));
}
function getWrap(uint256 tokenId) public view returns (string memory) {
return pluck(tokenId, "WRAP", wrap);
}
function getPaper(uint256 tokenId) public view returns (string memory) {
return pluck(tokenId, "PAPER", paper);
}
function getSecond(uint256 tokenId) public view returns (string memory) {
return pluck(tokenId, "SECOND", second);
}
function getFirst(uint256 tokenId) public view returns (string memory) {
return pluck(tokenId, "FIRST", first);
}
function getFormat(uint256 tokenId) public view returns (string memory) {
return pluck(tokenId, "FORMAT", format);
}
function getNext(uint256 tokenId) public view returns (string memory) {
return pluck(tokenId, "NEXT", next);
}
function pluck(uint256 tokenId, string memory keyPrefix, string[] memory sourceArray) internal view returns (string memory) {
uint256 rand = random(string(abi.encodePacked(keyPrefix, toString(tokenId))));
string memory output = sourceArray[rand % sourceArray.length];
uint256 greatness = rand % 21;
if (greatness > 14) {
output = string(abi.encodePacked(output, " ", suffixes[rand % suffixes.length]));
}
if (greatness >= 19) {
string[2] memory name;
name[0] = namePrefixes[rand % namePrefixes.length];
name[1] = nameSuffixes[rand % nameSuffixes.length];
if (greatness == 19) {
output = string(abi.encodePacked('"', name[0], ' ', name[1], '" ', output));
} else {
output = string(abi.encodePacked('"', name[0], ' ', name[1], '" ', output, " +1"));
}
}
return output;
}
function tokenURI(uint256 tokenId) override public view returns (string memory) {
string[17] memory parts;
parts[0] = '<svg xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMinYMin meet" viewBox="0 0 400 400"><style>.base { fill: #71FF7B; font-family: "Roboto Mono"; font-size: 10px; }</style><rect width="100%" height="100%" fill="#06420D" /><text x="10" y="20" class="base">';
parts[1] = getWrap(tokenId);
parts[2] = '</text><text x="10" y="40" class="base">';
parts[3] = getPaper(tokenId);
parts[4] = '</text><text x="10" y="60" class="base">';
parts[5] = getSecond(tokenId);
parts[6] = '</text><text x="10" y="80" class="base">';
parts[7] = getFirst(tokenId);
parts[8] = '</text><text x="10" y="100" class="base">';
parts[9] = getFormat(tokenId);
parts[10] = '</text><text x="10" y="120" class="base">';
parts[11] = getNext(tokenId);
parts[13] = '</text></svg>';
string memory output = string(abi.encodePacked(parts[0], parts[1], parts[2], parts[3], parts[4], parts[5], parts[6], parts[7], parts[8]));
output = string(abi.encodePacked(output, parts[9], parts[10], parts[11], parts[12], parts[13], parts[14], parts[15], parts[16]));
string memory json = Base64.encode(bytes(string(abi.encodePacked('{"name": "Mint #', toString(tokenId), '", "description": "Welcome to the contract. Be healthy, be happy. Do whatever you want with these. WAGMI.", "image": "data:image/svg+xml;base64,', Base64.encode(bytes(output)), '"}'))));
output = string(abi.encodePacked('data:application/json;base64,', json));
return output;
}
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT license
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
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);
}
constructor()
public
ERC721("Contract", "CONTRACT") {}
//Set Base URI
function setBaseURI(string memory _baseURI)
external
onlyOwner
{
_setBaseURI(_baseURI);
}
//Set Contract-level URI
function setContractURI(string memory contractURI_)
external
onlyOwner
{
_contractURI = contractURI_;
}
//View Contract-level URI
function contractURI()
public
view
returns (string memory)
{
return _contractURI;
}
//Provenance may only be set once irreversibly
function setProvenance(string memory _provenance)
external
onlyOwner
{
require(
bytes(provenance).length == 0,
"Provenance already set!"
);
provenance = _provenance;
}
//Minting
function reup(uint256 quantity)
external
payable
{
require(
block.number >= startingBlock,
"Sale hasn't started yet!"
);
require(
quantity <= maxMintsPerTx,
"There is a limit on minting too many at a time."
);
require(
nextTokenId -1 + quantity <= maxTokens ,
"Minting this many would exceed supply."
);
require(
msg.value >= tokenPrice * quantity,
"Not enough ether sent."
);
require(
msg.sender == tx.origin,
"No contracts."
);
for (uint256 i = 0; i < quantity; i++) {
_safeMint(msg.sender, nextTokenId++);
}
}
//Dev mint special tokens
function mintSpecial(address [] memory recipients, uint256 [] memory specialId)
external
onlyOwner
{
require (!devMintLocked,
"Dev Mint Permanently Locked"
);
for (uint256 i = 0; i < recipients.length; i++) {
require (specialId[i]!=0);
_safeMint(recipients[i],specialId[i]*1000000);
}
}
function setStartingBlock(uint256 _startingBlock)
public
onlyOwner
{
startingBlock=_startingBlock;
}
function lockDevMint()
public
onlyOwner
{
devMintLocked=true;
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/69122158
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