Blockchain / Global / Address
Contract
0x9fb0a9689cf9de4Ae787665C7e0e0f8fffc1830e
- Balance
- 0 SOMI
- Transactions sent
- 1
- Type
- Contract · 16,468 bytes of code
TokenPresale Verified
- Compiler
- solc 0.8.20+commit.a1b79de6
- Language
- Solidity
- Optimization
- Yes, 10 runs
- EVM version
- paris
- License
- —
- Verified
- 2026-10-12
contracts/presale/TokenPresale.sol
and 19 more files
Solidity
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.20;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "./TokenBase.sol";
import "./KeysLibrary.sol";
contract TokenPresale is Ownable, ReentrancyGuard {
uint256 public constant DECIMALS_SELL = 18;
uint256 public constant DECIMALS_BUY = 18; // native decimals 18
uint256 public constant HARD_CAP = 2500_1000 * 10 ** DECIMALS_BUY; // 2.5M SOMI
uint256 public constant SOFT_CAP = 200_1000 * 10 ** DECIMALS_BUY; // 200K SOMI
uint256 public constant SELL_TOKEN_TOTAL = 100_000_000 * 10 ** DECIMALS_SELL; // 100M tokenSell
uint256 public constant INITIAL_PRICE = 25 * 10 ** (DECIMALS_BUY - 3); // initial tokenSell price in SOMI
uint256 public constant PRICE_RATE = 500; // 5% rate of price growth
uint256 public constant OVER_HARD_BONUS_RATE = 0; // 0% Percentage of incentives over hardtop
uint256 public constant BASIS_DIVISOR = 10000;
uint256 public constant MIN_PURCHASE = 50 * 10 ** DECIMALS_BUY; // 50 SOMI
uint256 public constant MAX_PURCHASE = 100_000 * 10 ** DECIMALS_BUY; // 100K SOMI
// NFT score factors (scaled by 100 for precision)
uint256 public constant NFT_SILVER_FACTOR = 120; // 1.2 * 100
uint256 public constant NFT_GOLD_FACTOR = 250; // 2.5 * 100
uint256 public constant NFT_PLATINUM_FACTOR = 400; // 4 * 100
uint256 public constant NFT_MAX_SCORE = 10000;
uint256 public constant NFT_REWARD_DIVISOR = 100000;
TokenBase public tokenBase;
// NFT contract addresses (queried for balances)
IERC721 public silverNFT;
IERC721 public goldNFT;
IERC721 public platinumNFT;
struct Stage {
uint256 start;
uint256 end;
uint256 price; // tokenSell price in native coin (scaled by 1e18)
uint256 bonusPercentage; // bonus as percentage (scaled by 1e2)
}
Stage[4] public stages;
bool public finalized; // Note: This is still local, but could be migrated if needed
bool public initialized; // Track if initial values set to TokenBase
event TokensPurchased(address indexed buyer, uint256 amountTokenSell, uint256 earlyBirdBonusTokenSell, uint256 nftBonusTokenSell, uint256 amountMainCoin);
event PresaleFinalized(bool success);
event TokensClaimed(address indexed claimer, uint256 amount);
event RefundClaimed(address indexed claimer, uint256 amount);
event StartTimeUpdated(uint256 newStartTime);
event EndTimeUpdated(uint256 newEndTime);
event FundToUpdated(address newFundTo);
event NftContractsUpdated(address silver, address gold, address platinum);
event PresaleInitialized(uint256 startTime, uint256 endTime, address fundTo, address silverNFT, address goldNFT, address platinumNFT);
event FundsTransferred(address indexed fundTo, uint256 amount); // New: Record fund transfers
constructor(
uint256 _startTime,
uint256 _endTime,
address _fundTo,
address _tokenBase,
address _silverNFT,
address _goldNFT,
address _platinumNFT
) Ownable(msg.sender) {
require(_startTime < _endTime && block.timestamp < _endTime, "Invalid time range");
require(_tokenBase != address(0), "Invalid TokenBase address");
require(_silverNFT != address(0) && _goldNFT != address(0) && _platinumNFT != address(0), "Invalid NFT addresses");
require(_fundTo != address(0), "Invalid fundTo address");
tokenBase = TokenBase(_tokenBase);
silverNFT = IERC721(_silverNFT);
goldNFT = IERC721(_goldNFT);
platinumNFT = IERC721(_platinumNFT);
// Local initialization only (no TokenBase writes to avoid role revert during deployment)
stages[0] = Stage(0, HARD_CAP * 1000 / BASIS_DIVISOR, INITIAL_PRICE, 500); // 5% bonus
stages[1] = Stage(HARD_CAP * 1000 / BASIS_DIVISOR, HARD_CAP * 3000 / BASIS_DIVISOR, stages[0].price * (BASIS_DIVISOR + PRICE_RATE) / BASIS_DIVISOR, 250); // 2.5% bonus
stages[2] = Stage(HARD_CAP * 3000 / BASIS_DIVISOR, HARD_CAP * 5000 / BASIS_DIVISOR, stages[1].price * (BASIS_DIVISOR + PRICE_RATE) / BASIS_DIVISOR, 120); // 1.2% bonus
stages[3] = Stage(HARD_CAP * 5000 / BASIS_DIVISOR, HARD_CAP * 1000, stages[2].price * (BASIS_DIVISOR + PRICE_RATE) / BASIS_DIVISOR, 0); // 0% bonus
emit NftContractsUpdated(_silverNFT, _goldNFT, _platinumNFT);
}
function initializePresale(
uint256 _startTime,
uint256 _endTime,
address _fundTo,
address _silverNFT,
address _goldNFT,
address _platinumNFT
) external onlyOwner {
require(!initialized, "Already initialized");
require(_startTime < _endTime && block.timestamp < _endTime, "Invalid time range");
require(_fundTo != address(0), "Invalid fundTo address");
require(_silverNFT != address(0) && _goldNFT != address(0) && _platinumNFT != address(0), "Invalid NFT addresses");
tokenBase.setUint(KeysLibrary.KEY_START_TIME, _startTime);
tokenBase.setUint(KeysLibrary.KEY_END_TIME, _endTime);
tokenBase.setAddress(KeysLibrary.KEY_FUND_TO, _fundTo);
tokenBase.setAddress(KeysLibrary.KEY_SILVER_NFT, _silverNFT);
tokenBase.setAddress(KeysLibrary.KEY_GOLD_NFT, _goldNFT);
tokenBase.setAddress(KeysLibrary.KEY_PLATINUM_NFT, _platinumNFT);
tokenBase.setBool(KeysLibrary.KEY_FINALIZED, false);
silverNFT = IERC721(_silverNFT);
goldNFT = IERC721(_goldNFT);
platinumNFT = IERC721(_platinumNFT);
initialized = true;
emit PresaleInitialized(_startTime, _endTime, _fundTo, _silverNFT, _goldNFT, _platinumNFT);
}
modifier onlyDuringPresale() {
require(block.timestamp >= tokenBase.getUint(KeysLibrary.KEY_START_TIME) &&
block.timestamp <= tokenBase.getUint(KeysLibrary.KEY_END_TIME), "Presale not active");
_;
}
function setNftContracts(address _silverNFT, address _goldNFT, address _platinumNFT) external onlyOwner {
require(_silverNFT != address(0) && _goldNFT != address(0) && _platinumNFT != address(0), "Invalid NFT addresses");
silverNFT = IERC721(_silverNFT);
goldNFT = IERC721(_goldNFT);
platinumNFT = IERC721(_platinumNFT);
tokenBase.setAddress(KeysLibrary.KEY_SILVER_NFT, _silverNFT);
tokenBase.setAddress(KeysLibrary.KEY_GOLD_NFT, _goldNFT);
tokenBase.setAddress(KeysLibrary.KEY_PLATINUM_NFT, _platinumNFT);
emit NftContractsUpdated(_silverNFT, _goldNFT, _platinumNFT);
}
function setStartTime(uint256 _newStartTime) external onlyOwner {
require(_newStartTime > block.timestamp, "New start time must be in the future");
tokenBase.setUint(KeysLibrary.KEY_START_TIME, _newStartTime);
emit StartTimeUpdated(_newStartTime);
}
function setEndTime(uint256 _newEndTime) external onlyOwner {
require(_newEndTime > block.timestamp, "New end time must be in the future");
require(_newEndTime > tokenBase.getUint(KeysLibrary.KEY_START_TIME), "New end time must be after start time");
tokenBase.setUint(KeysLibrary.KEY_END_TIME, _newEndTime);
emit EndTimeUpdated(_newEndTime);
}
function setFundTo(address _newFundTo) external onlyOwner {
require(_newFundTo != address(0), "Invalid address");
tokenBase.setAddress(KeysLibrary.KEY_FUND_TO, _newFundTo);
emit FundToUpdated(_newFundTo);
}
function _calculateNftScore(address user) internal view returns (uint256 score) {
uint256 silverCount = silverNFT.balanceOf(user);
uint256 goldCount = goldNFT.balanceOf(user);
uint256 platinumCount = platinumNFT.balanceOf(user);
uint256 rawScore = (silverCount * NFT_SILVER_FACTOR) +
(goldCount * NFT_GOLD_FACTOR) +
(platinumCount * NFT_PLATINUM_FACTOR);
score = (rawScore > NFT_MAX_SCORE) ? NFT_MAX_SCORE : rawScore;
}
function _calculateNftBonusRate(uint256 score) internal pure returns (uint256 rate) {
rate = (score * BASIS_DIVISOR) / NFT_REWARD_DIVISOR;
}
function buyTokens() external payable onlyDuringPresale nonReentrant {
uint256 amountMainCoin = msg.value;
bytes32 contribKey = KeysLibrary.getUserUintKey(KeysLibrary.USER_SUFFIX_CONTRIBUTIONS, msg.sender);
uint256 currentContrib = tokenBase.getUint(contribKey);
uint256 nextAmountMainCoin = currentContrib + amountMainCoin;
require(amountMainCoin > 0 && nextAmountMainCoin >= MIN_PURCHASE && nextAmountMainCoin <= MAX_PURCHASE, "Invalid purchase amount");
uint256 initialTotalRaised = tokenBase.getUint(KeysLibrary.KEY_TOTAL_RAISED); // Cache initial totalRaised
uint256 remainingAmountMainCoin = amountMainCoin;
uint256 totalAmountTokenSell = 0;
uint256 totalEarlyBirdBonusTokenSell = 0;
uint256 totalNftBonusTokenSell = 0;
uint256 nftScore = _calculateNftScore(msg.sender);
uint256 nftBonusRate = _calculateNftBonusRate(nftScore);
for (uint256 i = 0; i < stages.length && remainingAmountMainCoin > 0; i++) {
Stage memory stage = stages[i];
if (tokenBase.getUint(KeysLibrary.KEY_TOTAL_RAISED) >= stage.end) continue;
uint256 stageRemainingBuyCapacity = stage.end - tokenBase.getUint(KeysLibrary.KEY_TOTAL_RAISED);
uint256 stageBuyAmount = remainingAmountMainCoin > stageRemainingBuyCapacity
? stageRemainingBuyCapacity
: remainingAmountMainCoin;
uint256 stageSellAmount = (stageBuyAmount * 10 ** DECIMALS_SELL) / stage.price;
uint256 stageEarlyBirdBonusAmount = (stageSellAmount * stage.bonusPercentage) / BASIS_DIVISOR;
uint256 stageNftBonusAmount = (stageSellAmount * nftBonusRate) / BASIS_DIVISOR;
totalAmountTokenSell += stageSellAmount;
totalEarlyBirdBonusTokenSell += stageEarlyBirdBonusAmount;
totalNftBonusTokenSell += stageNftBonusAmount;
remainingAmountMainCoin -= stageBuyAmount;
tokenBase.incrementUint(KeysLibrary.KEY_TOTAL_RAISED, stageBuyAmount);
tokenBase.incrementUint(KeysLibrary.KEY_TOTAL_SOLD, stageSellAmount);
tokenBase.incrementUint(KeysLibrary.KEY_TOTAL_BONUS, stageEarlyBirdBonusAmount + stageNftBonusAmount);
tokenBase.incrementUint(KeysLibrary.KEY_TOTAL_EARLY_BIRD_BONUS, stageEarlyBirdBonusAmount);
tokenBase.incrementUint(KeysLibrary.KEY_TOTAL_NFT_BONUS, stageNftBonusAmount);
if (tokenBase.getUint(KeysLibrary.KEY_TOTAL_SOLD) + tokenBase.getUint(KeysLibrary.KEY_TOTAL_BONUS) > SELL_TOKEN_TOTAL) {
revert("Exceeds available tokens");
}
if (tokenBase.getUint(KeysLibrary.KEY_TOTAL_RAISED) >= HARD_CAP) {
if ((tokenBase.getUint(KeysLibrary.KEY_TOTAL_SOLD) + tokenBase.getUint(KeysLibrary.KEY_TOTAL_BONUS) +
tokenBase.getUint(KeysLibrary.KEY_TOTAL_SOLD) * OVER_HARD_BONUS_RATE / BASIS_DIVISOR) > SELL_TOKEN_TOTAL) {
revert("Exceeds available tokens2");
}
}
}
require(remainingAmountMainCoin == 0, "Insufficient capacity for purchase");
tokenBase.setUint(contribKey, currentContrib + amountMainCoin);
bytes32 purchKey = KeysLibrary.getUserUintKey(KeysLibrary.USER_SUFFIX_PURCHASED_TOKENS, msg.sender);
uint256 currentPurch = tokenBase.getUint(purchKey);
tokenBase.setUint(purchKey, currentPurch + totalAmountTokenSell);
bytes32 earlyBirdKey = KeysLibrary.getUserUintKey(KeysLibrary.USER_SUFFIX_EARLY_BIRD_BONUS, msg.sender);
bytes32 nftBonusKey = KeysLibrary.getUserUintKey(KeysLibrary.USER_SUFFIX_NFT_BONUS, msg.sender);
uint256 currentEarlyBird = tokenBase.getUint(earlyBirdKey);
uint256 currentNft = tokenBase.getUint(nftBonusKey);
tokenBase.setUint(earlyBirdKey, currentEarlyBird + totalEarlyBirdBonusTokenSell);
tokenBase.setUint(nftBonusKey, currentNft + totalNftBonusTokenSell);
bytes32 hasPurchKey = KeysLibrary.getUserBoolKey(KeysLibrary.USER_SUFFIX_HAS_PURCHASED, msg.sender);
bool hasAlreadyPurchased = tokenBase.getBool(hasPurchKey);
if (!hasAlreadyPurchased) {
tokenBase.setBool(hasPurchKey, true);
tokenBase.incrementUint(KeysLibrary.KEY_USER_COUNT, 1);
}
// Handle fund transfer based on soft cap
uint256 updatedTotalRaised = tokenBase.getUint(KeysLibrary.KEY_TOTAL_RAISED);
if (initialTotalRaised < SOFT_CAP && updatedTotalRaised >= SOFT_CAP) {
// First time reaching soft cap: transfer all contract balance
_sendFundTo();
} else if (initialTotalRaised >= SOFT_CAP) {
// Already reached soft cap: transfer current msg.value
_sendAmountTo(amountMainCoin);
}
emit TokensPurchased(msg.sender, totalAmountTokenSell, totalEarlyBirdBonusTokenSell, totalNftBonusTokenSell, amountMainCoin);
}
function finalizePresale() external onlyOwner nonReentrant {
require(block.timestamp > tokenBase.getUint(KeysLibrary.KEY_END_TIME), "Presale not ended");
require(!tokenBase.getBool(KeysLibrary.KEY_FINALIZED), "Already finalized");
tokenBase.setBool(KeysLibrary.KEY_FINALIZED, true);
bool success = tokenBase.getUint(KeysLibrary.KEY_TOTAL_RAISED) >= SOFT_CAP;
if (success) {
_sendFundTo(); // Attempt to send any remaining balance
}
emit PresaleFinalized(success);
}
function claimRefund() external nonReentrant {
require(tokenBase.getBool(KeysLibrary.KEY_FINALIZED), "Presale not finalized");
require(tokenBase.getUint(KeysLibrary.KEY_TOTAL_RAISED) < SOFT_CAP, "Presale succeeded");
bytes32 contribKey = KeysLibrary.getUserUintKey(KeysLibrary.USER_SUFFIX_CONTRIBUTIONS, msg.sender);
bytes32 refundKey = KeysLibrary.getUserUintKey(KeysLibrary.USER_SUFFIX_REFUNDS, msg.sender);
uint256 contrib = tokenBase.getUint(contribKey);
uint256 ref = tokenBase.getUint(refundKey);
uint256 amount = contrib - ref;
require(amount > 0, "Already refunded");
tokenBase.setUint(refundKey, ref + amount);
(bool success, ) = msg.sender.call{value: amount}("");
require(success, "Failed to send native coin");
emit RefundClaimed(msg.sender, amount);
}
function withdrawFunds() external onlyOwner nonReentrant {
require(tokenBase.getBool(KeysLibrary.KEY_FINALIZED), "Presale not finalized");
require(tokenBase.getUint(KeysLibrary.KEY_TOTAL_RAISED) >= SOFT_CAP, "Presale failed");
require(tokenBase.getAddress(KeysLibrary.KEY_FUND_TO) != address(0), "Invalid asset receiving address");
_sendFundTo(); // Attempt to send any remaining balance
}
function _sendFundTo() internal {
uint256 balance = address(this).balance;
if (balance > 0) { // Allow zero balance to avoid revert in finalize/withdraw
address fundToAddr = tokenBase.getAddress(KeysLibrary.KEY_FUND_TO);
(bool success, ) = fundToAddr.call{value: balance}("");
require(success, "Failed to send funds");
emit FundsTransferred(fundToAddr, balance);
}
}
function _sendAmountTo(uint256 amount) internal {
require(amount > 0, "Amount must be greater than zero");
address fundToAddr = tokenBase.getAddress(KeysLibrary.KEY_FUND_TO);
(bool success, ) = fundToAddr.call{value: amount}("");
require(success, "Failed to send funds");
emit FundsTransferred(fundToAddr, amount);
}
function tokens() external view returns (address[] memory) {
address[] memory addresses = new address[](1);
addresses[0] = tokenBase.getAddress(KeysLibrary.KEY_SELL_ADDRESS);
return addresses;
}
function basicInfo() external view returns (uint256[] memory) {
uint256[] memory info = new uint256[](10);
info[0] = tokenBase.getUint(KeysLibrary.KEY_START_TIME);
info[1] = tokenBase.getUint(KeysLibrary.KEY_END_TIME);
info[2] = SOFT_CAP;
info[3] = HARD_CAP;
info[4] = SELL_TOKEN_TOTAL;
info[5] = INITIAL_PRICE;
info[6] = DECIMALS_SELL;
info[7] = DECIMALS_BUY;
info[8] = MIN_PURCHASE;
info[9] = MAX_PURCHASE;
return info;
}
function status() external view returns (uint256[] memory) {
uint256[] memory info = new uint256[](8);
info[0] = tokenBase.getBool(KeysLibrary.KEY_FINALIZED) ? 1 : 0;
info[1] = tokenBase.getUint(KeysLibrary.KEY_TOTAL_RAISED) >= SOFT_CAP ? 1 : 0;
info[2] = tokenBase.getUint(KeysLibrary.KEY_TOTAL_RAISED);
info[3] = tokenBase.getUint(KeysLibrary.KEY_TOTAL_SOLD);
info[4] = tokenBase.getUint(KeysLibrary.KEY_TOTAL_BONUS);
info[5] = tokenBase.getUint(KeysLibrary.KEY_USER_COUNT);
info[6] = tokenBase.getUint(KeysLibrary.KEY_TOTAL_EARLY_BIRD_BONUS);
info[7] = tokenBase.getUint(KeysLibrary.KEY_TOTAL_NFT_BONUS);
return info;
}
function accountInfo(address _account) external view returns (uint256[] memory) {
return _accountInfo(_account);
}
function userInfo() external view returns (uint256[] memory) {
return _accountInfo(msg.sender);
}
function _accountInfo(address _account) internal view returns (uint256[] memory) {
uint256[] memory info = new uint256[](7);
info[0] = tokenBase.getUint(KeysLibrary.getUserUintKey(KeysLibrary.USER_SUFFIX_CONTRIBUTIONS, _account));
info[1] = tokenBase.getUint(KeysLibrary.getUserUintKey(KeysLibrary.USER_SUFFIX_PURCHASED_TOKENS, _account));
info[2] = tokenBase.getUint(KeysLibrary.getUserUintKey(KeysLibrary.USER_SUFFIX_EARLY_BIRD_BONUS, _account));
info[3] = tokenBase.getUint(KeysLibrary.getUserUintKey(KeysLibrary.USER_SUFFIX_NFT_BONUS, _account));
info[4] = tokenBase.getUint(KeysLibrary.getUserUintKey(KeysLibrary.USER_SUFFIX_CLAIMED_TOKENS, _account));
info[5] = tokenBase.getUint(KeysLibrary.getUserUintKey(KeysLibrary.USER_SUFFIX_REFUNDS, _account));
info[6] = _calculateNftScore(_account);
return info;
}
function getStage() public view returns (uint256) {
uint256 totalRaised = tokenBase.getUint(KeysLibrary.KEY_TOTAL_RAISED);
for (uint256 i = 0; i < stages.length; i++) {
if (totalRaised >= stages[i].start && totalRaised < stages[i].end) {
return i;
}
}
return stages.length;
}
function stageInfo() external view returns (uint256, uint256) {
uint256 stageIndex = getStage();
if (stageIndex >= stages.length) {
return (stages[stages.length - 1].price, stages[stages.length - 1].bonusPercentage);
}
return (stages[stageIndex].price, stages[stageIndex].bonusPercentage);
}
function getUserNftScore(address user) external view returns (uint256 score, uint256 bonusRate) {
score = _calculateNftScore(user);
bonusRate = _calculateNftBonusRate(score);
}
receive() external payable {
revert("Use buyTokens function to send native coin");
}
}Other files
@openzeppelin/contracts/access/Ownable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol) pragma solidity ^0.8.20; import {Context} from "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * The initial owner is set to the address provided by the deployer. This can * later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; /** * @dev The caller account is not authorized to perform an operation. */ error OwnableUnauthorizedAccount(address account); /** * @dev The owner is not a valid owner account. (eg. `address(0)`) */ error OwnableInvalidOwner(address owner); event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the address provided by the deployer as the initial owner. */ constructor(address initialOwner) { if (initialOwner == address(0)) { revert OwnableInvalidOwner(address(0)); } _transferOwnership(initialOwner); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { if (owner() != _msgSender()) { revert OwnableUnauthorizedAccount(_msgSender()); } } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby disabling any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { if (newOwner == address(0)) { revert OwnableInvalidOwner(address(0)); } _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }@openzeppelin/contracts/token/ERC20/IERC20.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.20; /** * @dev Interface of the ERC-20 standard as defined in the ERC. */ interface IERC20 { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the value of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the value of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves a `value` amount of tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 value) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets a `value` amount of tokens as the allowance of `spender` over the * caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 value) external returns (bool); /** * @dev Moves a `value` amount of tokens from `from` to `to` using the * allowance mechanism. `value` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 value) external returns (bool); }@openzeppelin/contracts/token/ERC721/IERC721.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.20; import {IERC165} from "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC-721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon * a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC-721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or * {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon * a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC-721 * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must * understand this adds an external call which potentially creates a reentrancy vulnerability. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 tokenId) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the address zero. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }@openzeppelin/contracts/utils/Arrays.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.3.0) (utils/Arrays.sol) // This file was procedurally generated from scripts/generate/templates/Arrays.js. pragma solidity ^0.8.20; import {Comparators} from "./Comparators.sol"; import {SlotDerivation} from "./SlotDerivation.sol"; import {StorageSlot} from "./StorageSlot.sol"; import {Math} from "./math/Math.sol"; /** * @dev Collection of functions related to array types. */ library Arrays { using SlotDerivation for bytes32; using StorageSlot for bytes32; /** * @dev Sort an array of uint256 (in memory) following the provided comparator function. * * This function does the sorting "in place", meaning that it overrides the input. The object is returned for * convenience, but that returned value can be discarded safely if the caller has a memory pointer to the array. * * NOTE: this function's cost is `O(n · log(n))` in average and `O(n²)` in the worst case, with n the length of the * array. Using it in view functions that are executed through `eth_call` is safe, but one should be very careful * when executing this as part of a transaction. If the array being sorted is too large, the sort operation may * consume more gas than is available in a block, leading to potential DoS. * * IMPORTANT: Consider memory side-effects when using custom comparator functions that access memory in an unsafe way. */ function sort( uint256[] memory array, function(uint256, uint256) pure returns (bool) comp ) internal pure returns (uint256[] memory) { _quickSort(_begin(array), _end(array), comp); return array; } /** * @dev Variant of {sort} that sorts an array of uint256 in increasing order. */ function sort(uint256[] memory array) internal pure returns (uint256[] memory) { sort(array, Comparators.lt); return array; } /** * @dev Sort an array of address (in memory) following the provided comparator function. * * This function does the sorting "in place", meaning that it overrides the input. The object is returned for * convenience, but that returned value can be discarded safely if the caller has a memory pointer to the array. * * NOTE: this function's cost is `O(n · log(n))` in average and `O(n²)` in the worst case, with n the length of the * array. Using it in view functions that are executed through `eth_call` is safe, but one should be very careful * when executing this as part of a transaction. If the array being sorted is too large, the sort operation may * consume more gas than is available in a block, leading to potential DoS. * * IMPORTANT: Consider memory side-effects when using custom comparator functions that access memory in an unsafe way. */ function sort( address[] memory array, function(address, address) pure returns (bool) comp ) internal pure returns (address[] memory) { sort(_castToUint256Array(array), _castToUint256Comp(comp)); return array; } /** * @dev Variant of {sort} that sorts an array of address in increasing order. */ function sort(address[] memory array) internal pure returns (address[] memory) { sort(_castToUint256Array(array), Comparators.lt); return array; } /** * @dev Sort an array of bytes32 (in memory) following the provided comparator function. * * This function does the sorting "in place", meaning that it overrides the input. The object is returned for * convenience, but that returned value can be discarded safely if the caller has a memory pointer to the array. * * NOTE: this function's cost is `O(n · log(n))` in average and `O(n²)` in the worst case, with n the length of the * array. Using it in view functions that are executed through `eth_call` is safe, but one should be very careful * when executing this as part of a transaction. If the array being sorted is too large, the sort operation may * consume more gas than is available in a block, leading to potential DoS. * * IMPORTANT: Consider memory side-effects when using custom comparator functions that access memory in an unsafe way. */ function sort( bytes32[] memory array, function(bytes32, bytes32) pure returns (bool) comp ) internal pure returns (bytes32[] memory) { sort(_castToUint256Array(array), _castToUint256Comp(comp)); return array; } /** * @dev Variant of {sort} that sorts an array of bytes32 in increasing order. */ function sort(bytes32[] memory array) internal pure returns (bytes32[] memory) { sort(_castToUint256Array(array), Comparators.lt); return array; } /** * @dev Performs a quick sort of a segment of memory. The segment sorted starts at `begin` (inclusive), and stops * at end (exclusive). Sorting follows the `comp` comparator. * * Invariant: `begin <= end`. This is the case when initially called by {sort} and is preserved in subcalls. * * IMPORTANT: Memory locations between `begin` and `end` are not validated/zeroed. This function should * be used only if the limits are within a memory array. */ function _quickSort(uint256 begin, uint256 end, function(uint256, uint256) pure returns (bool) comp) private pure { unchecked { if (end - begin < 0x40) return; // Use first element as pivot uint256 pivot = _mload(begin); // Position where the pivot should be at the end of the loop uint256 pos = begin; for (uint256 it = begin + 0x20; it < end; it += 0x20) { if (comp(_mload(it), pivot)) { // If the value stored at the iterator's position comes before the pivot, we increment the // position of the pivot and move the value there. pos += 0x20; _swap(pos, it); } } _swap(begin, pos); // Swap pivot into place _quickSort(begin, pos, comp); // Sort the left side of the pivot _quickSort(pos + 0x20, end, comp); // Sort the right side of the pivot } } /** * @dev Pointer to the memory location of the first element of `array`. */ function _begin(uint256[] memory array) private pure returns (uint256 ptr) { assembly ("memory-safe") { ptr := add(array, 0x20) } } /** * @dev Pointer to the memory location of the first memory word (32bytes) after `array`. This is the memory word * that comes just after the last element of the array. */ function _end(uint256[] memory array) private pure returns (uint256 ptr) { unchecked { return _begin(array) + array.length * 0x20; } } /** * @dev Load memory word (as a uint256) at location `ptr`. */ function _mload(uint256 ptr) private pure returns (uint256 value) { assembly { value := mload(ptr) } } /** * @dev Swaps the elements memory location `ptr1` and `ptr2`. */ function _swap(uint256 ptr1, uint256 ptr2) private pure { assembly { let value1 := mload(ptr1) let value2 := mload(ptr2) mstore(ptr1, value2) mstore(ptr2, value1) } } /// @dev Helper: low level cast address memory array to uint256 memory array function _castToUint256Array(address[] memory input) private pure returns (uint256[] memory output) { assembly { output := input } } /// @dev Helper: low level cast bytes32 memory array to uint256 memory array function _castToUint256Array(bytes32[] memory input) private pure returns (uint256[] memory output) { assembly { output := input } } /// @dev Helper: low level cast address comp function to uint256 comp function function _castToUint256Comp( function(address, address) pure returns (bool) input ) private pure returns (function(uint256, uint256) pure returns (bool) output) { assembly { output := input } } /// @dev Helper: low level cast bytes32 comp function to uint256 comp function function _castToUint256Comp( function(bytes32, bytes32) pure returns (bool) input ) private pure returns (function(uint256, uint256) pure returns (bool) output) { assembly { output := input } } /** * @dev Searches a sorted `array` and returns the first index that contains * a value greater or equal to `element`. If no such index exists (i.e. all * values in the array are strictly less than `element`), the array length is * returned. Time complexity O(log n). * * NOTE: The `array` is expected to be sorted in ascending order, and to * contain no repeated elements. * * IMPORTANT: Deprecated. This implementation behaves as {lowerBound} but lacks * support for repeated elements in the array. The {lowerBound} function should * be used instead. */ function findUpperBound(uint256[] storage array, uint256 element) internal view returns (uint256) { uint256 low = 0; uint256 high = array.length; if (high == 0) { return 0; } while (low < high) { uint256 mid = Math.average(low, high); // Note that mid will always be strictly less than high (i.e. it will be a valid array index) // because Math.average rounds towards zero (it does integer division with truncation). if (unsafeAccess(array, mid).value > element) { high = mid; } else { low = mid + 1; } } // At this point `low` is the exclusive upper bound. We will return the inclusive upper bound. if (low > 0 && unsafeAccess(array, low - 1).value == element) { return low - 1; } else { return low; } } /** * @dev Searches an `array` sorted in ascending order and returns the first * index that contains a value greater or equal than `element`. If no such index * exists (i.e. all values in the array are strictly less than `element`), the array * length is returned. Time complexity O(log n). * * See C++'s https://en.cppreference.com/w/cpp/algorithm/lower_bound[lower_bound]. */ function lowerBound(uint256[] storage array, uint256 element) internal view returns (uint256) { uint256 low = 0; uint256 high = array.length; if (high == 0) { return 0; } while (low < high) { uint256 mid = Math.average(low, high); // Note that mid will always be strictly less than high (i.e. it will be a valid array index) // because Math.average rounds towards zero (it does integer division with truncation). if (unsafeAccess(array, mid).value < element) { // this cannot overflow because mid < high unchecked { low = mid + 1; } } else { high = mid; } } return low; } /** * @dev Searches an `array` sorted in ascending order and returns the first * index that contains a value strictly greater than `element`. If no such index * exists (i.e. all values in the array are strictly less than `element`), the array * length is returned. Time complexity O(log n). * * See C++'s https://en.cppreference.com/w/cpp/algorithm/upper_bound[upper_bound]. */ function upperBound(uint256[] storage array, uint256 element) internal view returns (uint256) { uint256 low = 0; uint256 high = array.length; if (high == 0) { return 0; } while (low < high) { uint256 mid = Math.average(low, high); // Note that mid will always be strictly less than high (i.e. it will be a valid array index) // because Math.average rounds towards zero (it does integer division with truncation). if (unsafeAccess(array, mid).value > element) { high = mid; } else { // this cannot overflow because mid < high unchecked { low = mid + 1; } } } return low; } /** * @dev Same as {lowerBound}, but with an array in memory. */ function lowerBoundMemory(uint256[] memory array, uint256 element) internal pure returns (uint256) { uint256 low = 0; uint256 high = array.length; if (high == 0) { return 0; } while (low < high) { uint256 mid = Math.average(low, high); // Note that mid will always be strictly less than high (i.e. it will be a valid array index) // because Math.average rounds towards zero (it does integer division with truncation). if (unsafeMemoryAccess(array, mid) < element) { // this cannot overflow because mid < high unchecked { low = mid + 1; } } else { high = mid; } } return low; } /** * @dev Same as {upperBound}, but with an array in memory. */ function upperBoundMemory(uint256[] memory array, uint256 element) internal pure returns (uint256) { uint256 low = 0; uint256 high = array.length; if (high == 0) { return 0; } while (low < high) { uint256 mid = Math.average(low, high); // Note that mid will always be strictly less than high (i.e. it will be a valid array index) // because Math.average rounds towards zero (it does integer division with truncation). if (unsafeMemoryAccess(array, mid) > element) { high = mid; } else { // this cannot overflow because mid < high unchecked { low = mid + 1; } } } return low; } /** * @dev Access an array in an "unsafe" way. Skips solidity "index-out-of-range" check. * * WARNING: Only use if you are certain `pos` is lower than the array length. */ function unsafeAccess(address[] storage arr, uint256 pos) internal pure returns (StorageSlot.AddressSlot storage) { bytes32 slot; assembly ("memory-safe") { slot := arr.slot } return slot.deriveArray().offset(pos).getAddressSlot(); } /** * @dev Access an array in an "unsafe" way. Skips solidity "index-out-of-range" check. * * WARNING: Only use if you are certain `pos` is lower than the array length. */ function unsafeAccess(bytes32[] storage arr, uint256 pos) internal pure returns (StorageSlot.Bytes32Slot storage) { bytes32 slot; assembly ("memory-safe") { slot := arr.slot } return slot.deriveArray().offset(pos).getBytes32Slot(); } /** * @dev Access an array in an "unsafe" way. Skips solidity "index-out-of-range" check. * * WARNING: Only use if you are certain `pos` is lower than the array length. */ function unsafeAccess(uint256[] storage arr, uint256 pos) internal pure returns (StorageSlot.Uint256Slot storage) { bytes32 slot; assembly ("memory-safe") { slot := arr.slot } return slot.deriveArray().offset(pos).getUint256Slot(); } /** * @dev Access an array in an "unsafe" way. Skips solidity "index-out-of-range" check. * * WARNING: Only use if you are certain `pos` is lower than the array length. */ function unsafeMemoryAccess(address[] memory arr, uint256 pos) internal pure returns (address res) { assembly { res := mload(add(add(arr, 0x20), mul(pos, 0x20))) } } /** * @dev Access an array in an "unsafe" way. Skips solidity "index-out-of-range" check. * * WARNING: Only use if you are certain `pos` is lower than the array length. */ function unsafeMemoryAccess(bytes32[] memory arr, uint256 pos) internal pure returns (bytes32 res) { assembly { res := mload(add(add(arr, 0x20), mul(pos, 0x20))) } } /** * @dev Access an array in an "unsafe" way. Skips solidity "index-out-of-range" check. * * WARNING: Only use if you are certain `pos` is lower than the array length. */ function unsafeMemoryAccess(uint256[] memory arr, uint256 pos) internal pure returns (uint256 res) { assembly { res := mload(add(add(arr, 0x20), mul(pos, 0x20))) } } /** * @dev Helper to set the length of a dynamic array. Directly writing to `.length` is forbidden. * * WARNING: this does not clear elements if length is reduced, of initialize elements if length is increased. */ function unsafeSetLength(address[] storage array, uint256 len) internal { assembly ("memory-safe") { sstore(array.slot, len) } } /** * @dev Helper to set the length of a dynamic array. Directly writing to `.length` is forbidden. * * WARNING: this does not clear elements if length is reduced, of initialize elements if length is increased. */ function unsafeSetLength(bytes32[] storage array, uint256 len) internal { assembly ("memory-safe") { sstore(array.slot, len) } } /** * @dev Helper to set the length of a dynamic array. Directly writing to `.length` is forbidden. * * WARNING: this does not clear elements if length is reduced, of initialize elements if length is increased. */ function unsafeSetLength(uint256[] storage array, uint256 len) internal { assembly ("memory-safe") { sstore(array.slot, len) } } }@openzeppelin/contracts/utils/Comparators.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/Comparators.sol) pragma solidity ^0.8.20; /** * @dev Provides a set of functions to compare values. * * _Available since v5.1._ */ library Comparators { function lt(uint256 a, uint256 b) internal pure returns (bool) { return a < b; } function gt(uint256 a, uint256 b) internal pure returns (bool) { return a > b; } }@openzeppelin/contracts/utils/Context.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol) pragma solidity ^0.8.20; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; } }@openzeppelin/contracts/utils/Panic.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/Panic.sol) pragma solidity ^0.8.20; /** * @dev Helper library for emitting standardized panic codes. * * ```solidity * contract Example { * using Panic for uint256; * * // Use any of the declared internal constants * function foo() { Panic.GENERIC.panic(); } * * // Alternatively * function foo() { Panic.panic(Panic.GENERIC); } * } * ``` * * Follows the list from https://github.com/ethereum/solidity/blob/v0.8.24/libsolutil/ErrorCodes.h[libsolutil]. * * _Available since v5.1._ */ // slither-disable-next-line unused-state library Panic { /// @dev generic / unspecified error uint256 internal constant GENERIC = 0x00; /// @dev used by the assert() builtin uint256 internal constant ASSERT = 0x01; /// @dev arithmetic underflow or overflow uint256 internal constant UNDER_OVERFLOW = 0x11; /// @dev division or modulo by zero uint256 internal constant DIVISION_BY_ZERO = 0x12; /// @dev enum conversion error uint256 internal constant ENUM_CONVERSION_ERROR = 0x21; /// @dev invalid encoding in storage uint256 internal constant STORAGE_ENCODING_ERROR = 0x22; /// @dev empty array pop uint256 internal constant EMPTY_ARRAY_POP = 0x31; /// @dev array out of bounds access uint256 internal constant ARRAY_OUT_OF_BOUNDS = 0x32; /// @dev resource error (too large allocation or too large array) uint256 internal constant RESOURCE_ERROR = 0x41; /// @dev calling invalid internal function uint256 internal constant INVALID_INTERNAL_FUNCTION = 0x51; /// @dev Reverts with a panic code. Recommended to use with /// the internal constants with predefined codes. function panic(uint256 code) internal pure { assembly ("memory-safe") { mstore(0x00, 0x4e487b71) mstore(0x20, code) revert(0x1c, 0x24) } } }@openzeppelin/contracts/utils/ReentrancyGuard.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/ReentrancyGuard.sol) pragma solidity ^0.8.20; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If EIP-1153 (transient storage) is available on the chain you're deploying at, * consider using {ReentrancyGuardTransient} instead. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant NOT_ENTERED = 1; uint256 private constant ENTERED = 2; uint256 private _status; /** * @dev Unauthorized reentrant call. */ error ReentrancyGuardReentrantCall(); constructor() { _status = NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { _nonReentrantBefore(); _; _nonReentrantAfter(); } function _nonReentrantBefore() private { // On the first call to nonReentrant, _status will be NOT_ENTERED if (_status == ENTERED) { revert ReentrancyGuardReentrantCall(); } // Any calls to nonReentrant after this point will fail _status = ENTERED; } function _nonReentrantAfter() private { // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = NOT_ENTERED; } /** * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a * `nonReentrant` function in the call stack. */ function _reentrancyGuardEntered() internal view returns (bool) { return _status == ENTERED; } }@openzeppelin/contracts/utils/SlotDerivation.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.3.0) (utils/SlotDerivation.sol) // This file was procedurally generated from scripts/generate/templates/SlotDerivation.js. pragma solidity ^0.8.20; /** * @dev Library for computing storage (and transient storage) locations from namespaces and deriving slots * corresponding to standard patterns. The derivation method for array and mapping matches the storage layout used by * the solidity language / compiler. * * See https://docs.soliditylang.org/en/v0.8.20/internals/layout_in_storage.html#mappings-and-dynamic-arrays[Solidity docs for mappings and dynamic arrays.]. * * Example usage: * ```solidity * contract Example { * // Add the library methods * using StorageSlot for bytes32; * using SlotDerivation for bytes32; * * // Declare a namespace * string private constant _NAMESPACE = "<namespace>"; // eg. OpenZeppelin.Slot * * function setValueInNamespace(uint256 key, address newValue) internal { * _NAMESPACE.erc7201Slot().deriveMapping(key).getAddressSlot().value = newValue; * } * * function getValueInNamespace(uint256 key) internal view returns (address) { * return _NAMESPACE.erc7201Slot().deriveMapping(key).getAddressSlot().value; * } * } * ``` * * TIP: Consider using this library along with {StorageSlot}. * * NOTE: This library provides a way to manipulate storage locations in a non-standard way. Tooling for checking * upgrade safety will ignore the slots accessed through this library. * * _Available since v5.1._ */ library SlotDerivation { /** * @dev Derive an ERC-7201 slot from a string (namespace). */ function erc7201Slot(string memory namespace) internal pure returns (bytes32 slot) { assembly ("memory-safe") { mstore(0x00, sub(keccak256(add(namespace, 0x20), mload(namespace)), 1)) slot := and(keccak256(0x00, 0x20), not(0xff)) } } /** * @dev Add an offset to a slot to get the n-th element of a structure or an array. */ function offset(bytes32 slot, uint256 pos) internal pure returns (bytes32 result) { unchecked { return bytes32(uint256(slot) + pos); } } /** * @dev Derive the location of the first element in an array from the slot where the length is stored. */ function deriveArray(bytes32 slot) internal pure returns (bytes32 result) { assembly ("memory-safe") { mstore(0x00, slot) result := keccak256(0x00, 0x20) } } /** * @dev Derive the location of a mapping element from the key. */ function deriveMapping(bytes32 slot, address key) internal pure returns (bytes32 result) { assembly ("memory-safe") { mstore(0x00, and(key, shr(96, not(0)))) mstore(0x20, slot) result := keccak256(0x00, 0x40) } } /** * @dev Derive the location of a mapping element from the key. */ function deriveMapping(bytes32 slot, bool key) internal pure returns (bytes32 result) { assembly ("memory-safe") { mstore(0x00, iszero(iszero(key))) mstore(0x20, slot) result := keccak256(0x00, 0x40) } } /** * @dev Derive the location of a mapping element from the key. */ function deriveMapping(bytes32 slot, bytes32 key) internal pure returns (bytes32 result) { assembly ("memory-safe") { mstore(0x00, key) mstore(0x20, slot) result := keccak256(0x00, 0x40) } } /** * @dev Derive the location of a mapping element from the key. */ function deriveMapping(bytes32 slot, uint256 key) internal pure returns (bytes32 result) { assembly ("memory-safe") { mstore(0x00, key) mstore(0x20, slot) result := keccak256(0x00, 0x40) } } /** * @dev Derive the location of a mapping element from the key. */ function deriveMapping(bytes32 slot, int256 key) internal pure returns (bytes32 result) { assembly ("memory-safe") { mstore(0x00, key) mstore(0x20, slot) result := keccak256(0x00, 0x40) } } /** * @dev Derive the location of a mapping element from the key. */ function deriveMapping(bytes32 slot, string memory key) internal pure returns (bytes32 result) { assembly ("memory-safe") { let length := mload(key) let begin := add(key, 0x20) let end := add(begin, length) let cache := mload(end) mstore(end, slot) result := keccak256(begin, add(length, 0x20)) mstore(end, cache) } } /** * @dev Derive the location of a mapping element from the key. */ function deriveMapping(bytes32 slot, bytes memory key) internal pure returns (bytes32 result) { assembly ("memory-safe") { let length := mload(key) let begin := add(key, 0x20) let end := add(begin, length) let cache := mload(end) mstore(end, slot) result := keccak256(begin, add(length, 0x20)) mstore(end, cache) } } }@openzeppelin/contracts/utils/StorageSlot.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/StorageSlot.sol) // This file was procedurally generated from scripts/generate/templates/StorageSlot.js. pragma solidity ^0.8.20; /** * @dev Library for reading and writing primitive types to specific storage slots. * * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts. * This library helps with reading and writing to such slots without the need for inline assembly. * * The functions in this library return Slot structs that contain a `value` member that can be used to read or write. * * Example usage to set ERC-1967 implementation slot: * ```solidity * contract ERC1967 { * // Define the slot. Alternatively, use the SlotDerivation library to derive the slot. * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; * * function _getImplementation() internal view returns (address) { * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; * } * * function _setImplementation(address newImplementation) internal { * require(newImplementation.code.length > 0); * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; * } * } * ``` * * TIP: Consider using this library along with {SlotDerivation}. */ library StorageSlot { struct AddressSlot { address value; } struct BooleanSlot { bool value; } struct Bytes32Slot { bytes32 value; } struct Uint256Slot { uint256 value; } struct Int256Slot { int256 value; } struct StringSlot { string value; } struct BytesSlot { bytes value; } /** * @dev Returns an `AddressSlot` with member `value` located at `slot`. */ function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns a `BooleanSlot` with member `value` located at `slot`. */ function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns a `Bytes32Slot` with member `value` located at `slot`. */ function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns a `Uint256Slot` with member `value` located at `slot`. */ function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns a `Int256Slot` with member `value` located at `slot`. */ function getInt256Slot(bytes32 slot) internal pure returns (Int256Slot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns a `StringSlot` with member `value` located at `slot`. */ function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns an `StringSlot` representation of the string storage pointer `store`. */ function getStringSlot(string storage store) internal pure returns (StringSlot storage r) { assembly ("memory-safe") { r.slot := store.slot } } /** * @dev Returns a `BytesSlot` with member `value` located at `slot`. */ function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`. */ function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) { assembly ("memory-safe") { r.slot := store.slot } } }@openzeppelin/contracts/utils/introspection/IERC165.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/IERC165.sol) pragma solidity ^0.8.20; /** * @dev Interface of the ERC-165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[ERC]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[ERC section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }@openzeppelin/contracts/utils/math/Math.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.3.0) (utils/math/Math.sol) pragma solidity ^0.8.20; import {Panic} from "../Panic.sol"; import {SafeCast} from "./SafeCast.sol"; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Floor, // Toward negative infinity Ceil, // Toward positive infinity Trunc, // Toward zero Expand // Away from zero } /** * @dev Return the 512-bit addition of two uint256. * * The result is stored in two 256 variables such that sum = high * 2²⁵⁶ + low. */ function add512(uint256 a, uint256 b) internal pure returns (uint256 high, uint256 low) { assembly ("memory-safe") { low := add(a, b) high := lt(low, a) } } /** * @dev Return the 512-bit multiplication of two uint256. * * The result is stored in two 256 variables such that product = high * 2²⁵⁶ + low. */ function mul512(uint256 a, uint256 b) internal pure returns (uint256 high, uint256 low) { // 512-bit multiply [high low] = x * y. Compute the product mod 2²⁵⁶ and mod 2²⁵⁶ - 1, then use // the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = high * 2²⁵⁶ + low. assembly ("memory-safe") { let mm := mulmod(a, b, not(0)) low := mul(a, b) high := sub(sub(mm, low), lt(mm, low)) } } /** * @dev Returns the addition of two unsigned integers, with a success flag (no overflow). */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) { unchecked { uint256 c = a + b; success = c >= a; result = c * SafeCast.toUint(success); } } /** * @dev Returns the subtraction of two unsigned integers, with a success flag (no overflow). */ function trySub(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) { unchecked { uint256 c = a - b; success = c <= a; result = c * SafeCast.toUint(success); } } /** * @dev Returns the multiplication of two unsigned integers, with a success flag (no overflow). */ function tryMul(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) { unchecked { uint256 c = a * b; assembly ("memory-safe") { // Only true when the multiplication doesn't overflow // (c / a == b) || (a == 0) success := or(eq(div(c, a), b), iszero(a)) } // equivalent to: success ? c : 0 result = c * SafeCast.toUint(success); } } /** * @dev Returns the division of two unsigned integers, with a success flag (no division by zero). */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) { unchecked { success = b > 0; assembly ("memory-safe") { // The `DIV` opcode returns zero when the denominator is 0. result := div(a, b) } } } /** * @dev Returns the remainder of dividing two unsigned integers, with a success flag (no division by zero). */ function tryMod(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) { unchecked { success = b > 0; assembly ("memory-safe") { // The `MOD` opcode returns zero when the denominator is 0. result := mod(a, b) } } } /** * @dev Unsigned saturating addition, bounds to `2²⁵⁶ - 1` instead of overflowing. */ function saturatingAdd(uint256 a, uint256 b) internal pure returns (uint256) { (bool success, uint256 result) = tryAdd(a, b); return ternary(success, result, type(uint256).max); } /** * @dev Unsigned saturating subtraction, bounds to zero instead of overflowing. */ function saturatingSub(uint256 a, uint256 b) internal pure returns (uint256) { (, uint256 result) = trySub(a, b); return result; } /** * @dev Unsigned saturating multiplication, bounds to `2²⁵⁶ - 1` instead of overflowing. */ function saturatingMul(uint256 a, uint256 b) internal pure returns (uint256) { (bool success, uint256 result) = tryMul(a, b); return ternary(success, result, type(uint256).max); } /** * @dev Branchless ternary evaluation for `a ? b : c`. Gas costs are constant. * * IMPORTANT: This function may reduce bytecode size and consume less gas when used standalone. * However, the compiler may optimize Solidity ternary operations (i.e. `a ? b : c`) to only compute * one branch when needed, making this function more expensive. */ function ternary(bool condition, uint256 a, uint256 b) internal pure returns (uint256) { unchecked { // branchless ternary works because: // b ^ (a ^ b) == a // b ^ 0 == b return b ^ ((a ^ b) * SafeCast.toUint(condition)); } } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return ternary(a > b, a, b); } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return ternary(a < b, a, b); } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds towards infinity instead * of rounding towards zero. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { if (b == 0) { // Guarantee the same behavior as in a regular Solidity division. Panic.panic(Panic.DIVISION_BY_ZERO); } // The following calculation ensures accurate ceiling division without overflow. // Since a is non-zero, (a - 1) / b will not overflow. // The largest possible result occurs when (a - 1) / b is type(uint256).max, // but the largest value we can obtain is type(uint256).max - 1, which happens // when a = type(uint256).max and b = 1. unchecked { return SafeCast.toUint(a > 0) * ((a - 1) / b + 1); } } /** * @dev Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or * denominator == 0. * * Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by * Uniswap Labs also under MIT license. */ function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) { unchecked { (uint256 high, uint256 low) = mul512(x, y); // Handle non-overflow cases, 256 by 256 division. if (high == 0) { // Solidity will revert if denominator == 0, unlike the div opcode on its own. // The surrounding unchecked block does not change this fact. // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic. return low / denominator; } // Make sure the result is less than 2²⁵⁶. Also prevents denominator == 0. if (denominator <= high) { Panic.panic(ternary(denominator == 0, Panic.DIVISION_BY_ZERO, Panic.UNDER_OVERFLOW)); } /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [high low]. uint256 remainder; assembly ("memory-safe") { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. high := sub(high, gt(remainder, low)) low := sub(low, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. // Always >= 1. See https://cs.stackexchange.com/q/138556/92363. uint256 twos = denominator & (0 - denominator); assembly ("memory-safe") { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [high low] by twos. low := div(low, twos) // Flip twos such that it is 2²⁵⁶ / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from high into low. low |= high * twos; // Invert denominator mod 2²⁵⁶. Now that denominator is an odd number, it has an inverse modulo 2²⁵⁶ such // that denominator * inv ≡ 1 mod 2²⁵⁶. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv ≡ 1 mod 2⁴. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also // works in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2⁸ inverse *= 2 - denominator * inverse; // inverse mod 2¹⁶ inverse *= 2 - denominator * inverse; // inverse mod 2³² inverse *= 2 - denominator * inverse; // inverse mod 2⁶⁴ inverse *= 2 - denominator * inverse; // inverse mod 2¹²⁸ inverse *= 2 - denominator * inverse; // inverse mod 2²⁵⁶ // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2²⁵⁶. Since the preconditions guarantee that the outcome is // less than 2²⁵⁶, this is the final result. We don't need to compute the high bits of the result and high // is no longer required. result = low * inverse; return result; } } /** * @dev Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) { return mulDiv(x, y, denominator) + SafeCast.toUint(unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0); } /** * @dev Calculates floor(x * y >> n) with full precision. Throws if result overflows a uint256. */ function mulShr(uint256 x, uint256 y, uint8 n) internal pure returns (uint256 result) { unchecked { (uint256 high, uint256 low) = mul512(x, y); if (high >= 1 << n) { Panic.panic(Panic.UNDER_OVERFLOW); } return (high << (256 - n)) | (low >> n); } } /** * @dev Calculates x * y >> n with full precision, following the selected rounding direction. */ function mulShr(uint256 x, uint256 y, uint8 n, Rounding rounding) internal pure returns (uint256) { return mulShr(x, y, n) + SafeCast.toUint(unsignedRoundsUp(rounding) && mulmod(x, y, 1 << n) > 0); } /** * @dev Calculate the modular multiplicative inverse of a number in Z/nZ. * * If n is a prime, then Z/nZ is a field. In that case all elements are inversible, except 0. * If n is not a prime, then Z/nZ is not a field, and some elements might not be inversible. * * If the input value is not inversible, 0 is returned. * * NOTE: If you know for sure that n is (big) a prime, it may be cheaper to use Fermat's little theorem and get the * inverse using `Math.modExp(a, n - 2, n)`. See {invModPrime}. */ function invMod(uint256 a, uint256 n) internal pure returns (uint256) { unchecked { if (n == 0) return 0; // The inverse modulo is calculated using the Extended Euclidean Algorithm (iterative version) // Used to compute integers x and y such that: ax + ny = gcd(a, n). // When the gcd is 1, then the inverse of a modulo n exists and it's x. // ax + ny = 1 // ax = 1 + (-y)n // ax ≡ 1 (mod n) # x is the inverse of a modulo n // If the remainder is 0 the gcd is n right away. uint256 remainder = a % n; uint256 gcd = n; // Therefore the initial coefficients are: // ax + ny = gcd(a, n) = n // 0a + 1n = n int256 x = 0; int256 y = 1; while (remainder != 0) { uint256 quotient = gcd / remainder; (gcd, remainder) = ( // The old remainder is the next gcd to try. remainder, // Compute the next remainder. // Can't overflow given that (a % gcd) * (gcd // (a % gcd)) <= gcd // where gcd is at most n (capped to type(uint256).max) gcd - remainder * quotient ); (x, y) = ( // Increment the coefficient of a. y, // Decrement the coefficient of n. // Can overflow, but the result is casted to uint256 so that the // next value of y is "wrapped around" to a value between 0 and n - 1. x - y * int256(quotient) ); } if (gcd != 1) return 0; // No inverse exists. return ternary(x < 0, n - uint256(-x), uint256(x)); // Wrap the result if it's negative. } } /** * @dev Variant of {invMod}. More efficient, but only works if `p` is known to be a prime greater than `2`. * * From https://en.wikipedia.org/wiki/Fermat%27s_little_theorem[Fermat's little theorem], we know that if p is * prime, then `a**(p-1) ≡ 1 mod p`. As a consequence, we have `a * a**(p-2) ≡ 1 mod p`, which means that * `a**(p-2)` is the modular multiplicative inverse of a in Fp. * * NOTE: this function does NOT check that `p` is a prime greater than `2`. */ function invModPrime(uint256 a, uint256 p) internal view returns (uint256) { unchecked { return Math.modExp(a, p - 2, p); } } /** * @dev Returns the modular exponentiation of the specified base, exponent and modulus (b ** e % m) * * Requirements: * - modulus can't be zero * - underlying staticcall to precompile must succeed * * IMPORTANT: The result is only valid if the underlying call succeeds. When using this function, make * sure the chain you're using it on supports the precompiled contract for modular exponentiation * at address 0x05 as specified in https://eips.ethereum.org/EIPS/eip-198[EIP-198]. Otherwise, * the underlying function will succeed given the lack of a revert, but the result may be incorrectly * interpreted as 0. */ function modExp(uint256 b, uint256 e, uint256 m) internal view returns (uint256) { (bool success, uint256 result) = tryModExp(b, e, m); if (!success) { Panic.panic(Panic.DIVISION_BY_ZERO); } return result; } /** * @dev Returns the modular exponentiation of the specified base, exponent and modulus (b ** e % m). * It includes a success flag indicating if the operation succeeded. Operation will be marked as failed if trying * to operate modulo 0 or if the underlying precompile reverted. * * IMPORTANT: The result is only valid if the success flag is true. When using this function, make sure the chain * you're using it on supports the precompiled contract for modular exponentiation at address 0x05 as specified in * https://eips.ethereum.org/EIPS/eip-198[EIP-198]. Otherwise, the underlying function will succeed given the lack * of a revert, but the result may be incorrectly interpreted as 0. */ function tryModExp(uint256 b, uint256 e, uint256 m) internal view returns (bool success, uint256 result) { if (m == 0) return (false, 0); assembly ("memory-safe") { let ptr := mload(0x40) // | Offset | Content | Content (Hex) | // |-----------|------------|--------------------------------------------------------------------| // | 0x00:0x1f | size of b | 0x0000000000000000000000000000000000000000000000000000000000000020 | // | 0x20:0x3f | size of e | 0x0000000000000000000000000000000000000000000000000000000000000020 | // | 0x40:0x5f | size of m | 0x0000000000000000000000000000000000000000000000000000000000000020 | // | 0x60:0x7f | value of b | 0x<.............................................................b> | // | 0x80:0x9f | value of e | 0x<.............................................................e> | // | 0xa0:0xbf | value of m | 0x<.............................................................m> | mstore(ptr, 0x20) mstore(add(ptr, 0x20), 0x20) mstore(add(ptr, 0x40), 0x20) mstore(add(ptr, 0x60), b) mstore(add(ptr, 0x80), e) mstore(add(ptr, 0xa0), m) // Given the result < m, it's guaranteed to fit in 32 bytes, // so we can use the memory scratch space located at offset 0. success := staticcall(gas(), 0x05, ptr, 0xc0, 0x00, 0x20) result := mload(0x00) } } /** * @dev Variant of {modExp} that supports inputs of arbitrary length. */ function modExp(bytes memory b, bytes memory e, bytes memory m) internal view returns (bytes memory) { (bool success, bytes memory result) = tryModExp(b, e, m); if (!success) { Panic.panic(Panic.DIVISION_BY_ZERO); } return result; } /** * @dev Variant of {tryModExp} that supports inputs of arbitrary length. */ function tryModExp( bytes memory b, bytes memory e, bytes memory m ) internal view returns (bool success, bytes memory result) { if (_zeroBytes(m)) return (false, new bytes(0)); uint256 mLen = m.length; // Encode call args in result and move the free memory pointer result = abi.encodePacked(b.length, e.length, mLen, b, e, m); assembly ("memory-safe") { let dataPtr := add(result, 0x20) // Write result on top of args to avoid allocating extra memory. success := staticcall(gas(), 0x05, dataPtr, mload(result), dataPtr, mLen) // Overwrite the length. // result.length > returndatasize() is guaranteed because returndatasize() == m.length mstore(result, mLen) // Set the memory pointer after the returned data. mstore(0x40, add(dataPtr, mLen)) } } /** * @dev Returns whether the provided byte array is zero. */ function _zeroBytes(bytes memory byteArray) private pure returns (bool) { for (uint256 i = 0; i < byteArray.length; ++i) { if (byteArray[i] != 0) { return false; } } return true; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded * towards zero. * * This method is based on Newton's method for computing square roots; the algorithm is restricted to only * using integer operations. */ function sqrt(uint256 a) internal pure returns (uint256) { unchecked { // Take care of easy edge cases when a == 0 or a == 1 if (a <= 1) { return a; } // In this function, we use Newton's method to get a root of `f(x) := x² - a`. It involves building a // sequence x_n that converges toward sqrt(a). For each iteration x_n, we also define the error between // the current value as `ε_n = | x_n - sqrt(a) |`. // // For our first estimation, we consider `e` the smallest power of 2 which is bigger than the square root // of the target. (i.e. `2**(e-1) ≤ sqrt(a) < 2**e`). We know that `e ≤ 128` because `(2¹²⁸)² = 2²⁵⁶` is // bigger than any uint256. // // By noticing that // `2**(e-1) ≤ sqrt(a) < 2**e → (2**(e-1))² ≤ a < (2**e)² → 2**(2*e-2) ≤ a < 2**(2*e)` // we can deduce that `e - 1` is `log2(a) / 2`. We can thus compute `x_n = 2**(e-1)` using a method similar // to the msb function. uint256 aa = a; uint256 xn = 1; if (aa >= (1 << 128)) { aa >>= 128; xn <<= 64; } if (aa >= (1 << 64)) { aa >>= 64; xn <<= 32; } if (aa >= (1 << 32)) { aa >>= 32; xn <<= 16; } if (aa >= (1 << 16)) { aa >>= 16; xn <<= 8; } if (aa >= (1 << 8)) { aa >>= 8; xn <<= 4; } if (aa >= (1 << 4)) { aa >>= 4; xn <<= 2; } if (aa >= (1 << 2)) { xn <<= 1; } // We now have x_n such that `x_n = 2**(e-1) ≤ sqrt(a) < 2**e = 2 * x_n`. This implies ε_n ≤ 2**(e-1). // // We can refine our estimation by noticing that the middle of that interval minimizes the error. // If we move x_n to equal 2**(e-1) + 2**(e-2), then we reduce the error to ε_n ≤ 2**(e-2). // This is going to be our x_0 (and ε_0) xn = (3 * xn) >> 1; // ε_0 := | x_0 - sqrt(a) | ≤ 2**(e-2) // From here, Newton's method give us: // x_{n+1} = (x_n + a / x_n) / 2 // // One should note that: // x_{n+1}² - a = ((x_n + a / x_n) / 2)² - a // = ((x_n² + a) / (2 * x_n))² - a // = (x_n⁴ + 2 * a * x_n² + a²) / (4 * x_n²) - a // = (x_n⁴ + 2 * a * x_n² + a² - 4 * a * x_n²) / (4 * x_n²) // = (x_n⁴ - 2 * a * x_n² + a²) / (4 * x_n²) // = (x_n² - a)² / (2 * x_n)² // = ((x_n² - a) / (2 * x_n))² // ≥ 0 // Which proves that for all n ≥ 1, sqrt(a) ≤ x_n // // This gives us the proof of quadratic convergence of the sequence: // ε_{n+1} = | x_{n+1} - sqrt(a) | // = | (x_n + a / x_n) / 2 - sqrt(a) | // = | (x_n² + a - 2*x_n*sqrt(a)) / (2 * x_n) | // = | (x_n - sqrt(a))² / (2 * x_n) | // = | ε_n² / (2 * x_n) | // = ε_n² / | (2 * x_n) | // // For the first iteration, we have a special case where x_0 is known: // ε_1 = ε_0² / | (2 * x_0) | // ≤ (2**(e-2))² / (2 * (2**(e-1) + 2**(e-2))) // ≤ 2**(2*e-4) / (3 * 2**(e-1)) // ≤ 2**(e-3) / 3 // ≤ 2**(e-3-log2(3)) // ≤ 2**(e-4.5) // // For the following iterations, we use the fact that, 2**(e-1) ≤ sqrt(a) ≤ x_n: // ε_{n+1} = ε_n² / | (2 * x_n) | // ≤ (2**(e-k))² / (2 * 2**(e-1)) // ≤ 2**(2*e-2*k) / 2**e // ≤ 2**(e-2*k) xn = (xn + a / xn) >> 1; // ε_1 := | x_1 - sqrt(a) | ≤ 2**(e-4.5) -- special case, see above xn = (xn + a / xn) >> 1; // ε_2 := | x_2 - sqrt(a) | ≤ 2**(e-9) -- general case with k = 4.5 xn = (xn + a / xn) >> 1; // ε_3 := | x_3 - sqrt(a) | ≤ 2**(e-18) -- general case with k = 9 xn = (xn + a / xn) >> 1; // ε_4 := | x_4 - sqrt(a) | ≤ 2**(e-36) -- general case with k = 18 xn = (xn + a / xn) >> 1; // ε_5 := | x_5 - sqrt(a) | ≤ 2**(e-72) -- general case with k = 36 xn = (xn + a / xn) >> 1; // ε_6 := | x_6 - sqrt(a) | ≤ 2**(e-144) -- general case with k = 72 // Because e ≤ 128 (as discussed during the first estimation phase), we know have reached a precision // ε_6 ≤ 2**(e-144) < 1. Given we're operating on integers, then we can ensure that xn is now either // sqrt(a) or sqrt(a) + 1. return xn - SafeCast.toUint(xn > a / xn); } } /** * @dev Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + SafeCast.toUint(unsignedRoundsUp(rounding) && result * result < a); } } /** * @dev Return the log in base 2 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log2(uint256 x) internal pure returns (uint256 r) { // If value has upper 128 bits set, log2 result is at least 128 r = SafeCast.toUint(x > 0xffffffffffffffffffffffffffffffff) << 7; // If upper 64 bits of 128-bit half set, add 64 to result r |= SafeCast.toUint((x >> r) > 0xffffffffffffffff) << 6; // If upper 32 bits of 64-bit half set, add 32 to result r |= SafeCast.toUint((x >> r) > 0xffffffff) << 5; // If upper 16 bits of 32-bit half set, add 16 to result r |= SafeCast.toUint((x >> r) > 0xffff) << 4; // If upper 8 bits of 16-bit half set, add 8 to result r |= SafeCast.toUint((x >> r) > 0xff) << 3; // If upper 4 bits of 8-bit half set, add 4 to result r |= SafeCast.toUint((x >> r) > 0xf) << 2; // Shifts value right by the current result and use it as an index into this lookup table: // // | x (4 bits) | index | table[index] = MSB position | // |------------|---------|-----------------------------| // | 0000 | 0 | table[0] = 0 | // | 0001 | 1 | table[1] = 0 | // | 0010 | 2 | table[2] = 1 | // | 0011 | 3 | table[3] = 1 | // | 0100 | 4 | table[4] = 2 | // | 0101 | 5 | table[5] = 2 | // | 0110 | 6 | table[6] = 2 | // | 0111 | 7 | table[7] = 2 | // | 1000 | 8 | table[8] = 3 | // | 1001 | 9 | table[9] = 3 | // | 1010 | 10 | table[10] = 3 | // | 1011 | 11 | table[11] = 3 | // | 1100 | 12 | table[12] = 3 | // | 1101 | 13 | table[13] = 3 | // | 1110 | 14 | table[14] = 3 | // | 1111 | 15 | table[15] = 3 | // // The lookup table is represented as a 32-byte value with the MSB positions for 0-15 in the last 16 bytes. assembly ("memory-safe") { r := or(r, byte(shr(r, x), 0x0000010102020202030303030303030300000000000000000000000000000000)) } } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 1 << result < value); } } /** * @dev Return the log in base 10 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10 ** 64) { value /= 10 ** 64; result += 64; } if (value >= 10 ** 32) { value /= 10 ** 32; result += 32; } if (value >= 10 ** 16) { value /= 10 ** 16; result += 16; } if (value >= 10 ** 8) { value /= 10 ** 8; result += 8; } if (value >= 10 ** 4) { value /= 10 ** 4; result += 4; } if (value >= 10 ** 2) { value /= 10 ** 2; result += 2; } if (value >= 10 ** 1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 10 ** result < value); } } /** * @dev Return the log in base 256 of a positive value rounded towards zero. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 x) internal pure returns (uint256 r) { // If value has upper 128 bits set, log2 result is at least 128 r = SafeCast.toUint(x > 0xffffffffffffffffffffffffffffffff) << 7; // If upper 64 bits of 128-bit half set, add 64 to result r |= SafeCast.toUint((x >> r) > 0xffffffffffffffff) << 6; // If upper 32 bits of 64-bit half set, add 32 to result r |= SafeCast.toUint((x >> r) > 0xffffffff) << 5; // If upper 16 bits of 32-bit half set, add 16 to result r |= SafeCast.toUint((x >> r) > 0xffff) << 4; // Add 1 if upper 8 bits of 16-bit half set, and divide accumulated result by 8 return (r >> 3) | SafeCast.toUint((x >> r) > 0xff); } /** * @dev Return the log in base 256, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 1 << (result << 3) < value); } } /** * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers. */ function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) { return uint8(rounding) % 2 == 1; } }@openzeppelin/contracts/utils/math/SafeCast.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/math/SafeCast.sol) // This file was procedurally generated from scripts/generate/templates/SafeCast.js. pragma solidity ^0.8.20; /** * @dev Wrappers over Solidity's uintXX/intXX/bool casting operators with added overflow * checks. * * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can * easily result in undesired exploitation or bugs, since developers usually * assume that overflows raise errors. `SafeCast` restores this intuition by * reverting the transaction when such an operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeCast { /** * @dev Value doesn't fit in an uint of `bits` size. */ error SafeCastOverflowedUintDowncast(uint8 bits, uint256 value); /** * @dev An int value doesn't fit in an uint of `bits` size. */ error SafeCastOverflowedIntToUint(int256 value); /** * @dev Value doesn't fit in an int of `bits` size. */ error SafeCastOverflowedIntDowncast(uint8 bits, int256 value); /** * @dev An uint value doesn't fit in an int of `bits` size. */ error SafeCastOverflowedUintToInt(uint256 value); /** * @dev Returns the downcasted uint248 from uint256, reverting on * overflow (when the input is greater than largest uint248). * * Counterpart to Solidity's `uint248` operator. * * Requirements: * * - input must fit into 248 bits */ function toUint248(uint256 value) internal pure returns (uint248) { if (value > type(uint248).max) { revert SafeCastOverflowedUintDowncast(248, value); } return uint248(value); } /** * @dev Returns the downcasted uint240 from uint256, reverting on * overflow (when the input is greater than largest uint240). * * Counterpart to Solidity's `uint240` operator. * * Requirements: * * - input must fit into 240 bits */ function toUint240(uint256 value) internal pure returns (uint240) { if (value > type(uint240).max) { revert SafeCastOverflowedUintDowncast(240, value); } return uint240(value); } /** * @dev Returns the downcasted uint232 from uint256, reverting on * overflow (when the input is greater than largest uint232). * * Counterpart to Solidity's `uint232` operator. * * Requirements: * * - input must fit into 232 bits */ function toUint232(uint256 value) internal pure returns (uint232) { if (value > type(uint232).max) { revert SafeCastOverflowedUintDowncast(232, value); } return uint232(value); } /** * @dev Returns the downcasted uint224 from uint256, reverting on * overflow (when the input is greater than largest uint224). * * Counterpart to Solidity's `uint224` operator. * * Requirements: * * - input must fit into 224 bits */ function toUint224(uint256 value) internal pure returns (uint224) { if (value > type(uint224).max) { revert SafeCastOverflowedUintDowncast(224, value); } return uint224(value); } /** * @dev Returns the downcasted uint216 from uint256, reverting on * overflow (when the input is greater than largest uint216). * * Counterpart to Solidity's `uint216` operator. * * Requirements: * * - input must fit into 216 bits */ function toUint216(uint256 value) internal pure returns (uint216) { if (value > type(uint216).max) { revert SafeCastOverflowedUintDowncast(216, value); } return uint216(value); } /** * @dev Returns the downcasted uint208 from uint256, reverting on * overflow (when the input is greater than largest uint208). * * Counterpart to Solidity's `uint208` operator. * * Requirements: * * - input must fit into 208 bits */ function toUint208(uint256 value) internal pure returns (uint208) { if (value > type(uint208).max) { revert SafeCastOverflowedUintDowncast(208, value); } return uint208(value); } /** * @dev Returns the downcasted uint200 from uint256, reverting on * overflow (when the input is greater than largest uint200). * * Counterpart to Solidity's `uint200` operator. * * Requirements: * * - input must fit into 200 bits */ function toUint200(uint256 value) internal pure returns (uint200) { if (value > type(uint200).max) { revert SafeCastOverflowedUintDowncast(200, value); } return uint200(value); } /** * @dev Returns the downcasted uint192 from uint256, reverting on * overflow (when the input is greater than largest uint192). * * Counterpart to Solidity's `uint192` operator. * * Requirements: * * - input must fit into 192 bits */ function toUint192(uint256 value) internal pure returns (uint192) { if (value > type(uint192).max) { revert SafeCastOverflowedUintDowncast(192, value); } return uint192(value); } /** * @dev Returns the downcasted uint184 from uint256, reverting on * overflow (when the input is greater than largest uint184). * * Counterpart to Solidity's `uint184` operator. * * Requirements: * * - input must fit into 184 bits */ function toUint184(uint256 value) internal pure returns (uint184) { if (value > type(uint184).max) { revert SafeCastOverflowedUintDowncast(184, value); } return uint184(value); } /** * @dev Returns the downcasted uint176 from uint256, reverting on * overflow (when the input is greater than largest uint176). * * Counterpart to Solidity's `uint176` operator. * * Requirements: * * - input must fit into 176 bits */ function toUint176(uint256 value) internal pure returns (uint176) { if (value > type(uint176).max) { revert SafeCastOverflowedUintDowncast(176, value); } return uint176(value); } /** * @dev Returns the downcasted uint168 from uint256, reverting on * overflow (when the input is greater than largest uint168). * * Counterpart to Solidity's `uint168` operator. * * Requirements: * * - input must fit into 168 bits */ function toUint168(uint256 value) internal pure returns (uint168) { if (value > type(uint168).max) { revert SafeCastOverflowedUintDowncast(168, value); } return uint168(value); } /** * @dev Returns the downcasted uint160 from uint256, reverting on * overflow (when the input is greater than largest uint160). * * Counterpart to Solidity's `uint160` operator. * * Requirements: * * - input must fit into 160 bits */ function toUint160(uint256 value) internal pure returns (uint160) { if (value > type(uint160).max) { revert SafeCastOverflowedUintDowncast(160, value); } return uint160(value); } /** * @dev Returns the downcasted uint152 from uint256, reverting on * overflow (when the input is greater than largest uint152). * * Counterpart to Solidity's `uint152` operator. * * Requirements: * * - input must fit into 152 bits */ function toUint152(uint256 value) internal pure returns (uint152) { if (value > type(uint152).max) { revert SafeCastOverflowedUintDowncast(152, value); } return uint152(value); } /** * @dev Returns the downcasted uint144 from uint256, reverting on * overflow (when the input is greater than largest uint144). * * Counterpart to Solidity's `uint144` operator. * * Requirements: * * - input must fit into 144 bits */ function toUint144(uint256 value) internal pure returns (uint144) { if (value > type(uint144).max) { revert SafeCastOverflowedUintDowncast(144, value); } return uint144(value); } /** * @dev Returns the downcasted uint136 from uint256, reverting on * overflow (when the input is greater than largest uint136). * * Counterpart to Solidity's `uint136` operator. * * Requirements: * * - input must fit into 136 bits */ function toUint136(uint256 value) internal pure returns (uint136) { if (value > type(uint136).max) { revert SafeCastOverflowedUintDowncast(136, value); } return uint136(value); } /** * @dev Returns the downcasted uint128 from uint256, reverting on * overflow (when the input is greater than largest uint128). * * Counterpart to Solidity's `uint128` operator. * * Requirements: * * - input must fit into 128 bits */ function toUint128(uint256 value) internal pure returns (uint128) { if (value > type(uint128).max) { revert SafeCastOverflowedUintDowncast(128, value); } return uint128(value); } /** * @dev Returns the downcasted uint120 from uint256, reverting on * overflow (when the input is greater than largest uint120). * * Counterpart to Solidity's `uint120` operator. * * Requirements: * * - input must fit into 120 bits */ function toUint120(uint256 value) internal pure returns (uint120) { if (value > type(uint120).max) { revert SafeCastOverflowedUintDowncast(120, value); } return uint120(value); } /** * @dev Returns the downcasted uint112 from uint256, reverting on * overflow (when the input is greater than largest uint112). * * Counterpart to Solidity's `uint112` operator. * * Requirements: * * - input must fit into 112 bits */ function toUint112(uint256 value) internal pure returns (uint112) { if (value > type(uint112).max) { revert SafeCastOverflowedUintDowncast(112, value); } return uint112(value); } /** * @dev Returns the downcasted uint104 from uint256, reverting on * overflow (when the input is greater than largest uint104). * * Counterpart to Solidity's `uint104` operator. * * Requirements: * * - input must fit into 104 bits */ function toUint104(uint256 value) internal pure returns (uint104) { if (value > type(uint104).max) { revert SafeCastOverflowedUintDowncast(104, value); } return uint104(value); } /** * @dev Returns the downcasted uint96 from uint256, reverting on * overflow (when the input is greater than largest uint96). * * Counterpart to Solidity's `uint96` operator. * * Requirements: * * - input must fit into 96 bits */ function toUint96(uint256 value) internal pure returns (uint96) { if (value > type(uint96).max) { revert SafeCastOverflowedUintDowncast(96, value); } return uint96(value); } /** * @dev Returns the downcasted uint88 from uint256, reverting on * overflow (when the input is greater than largest uint88). * * Counterpart to Solidity's `uint88` operator. * * Requirements: * * - input must fit into 88 bits */ function toUint88(uint256 value) internal pure returns (uint88) { if (value > type(uint88).max) { revert SafeCastOverflowedUintDowncast(88, value); } return uint88(value); } /** * @dev Returns the downcasted uint80 from uint256, reverting on * overflow (when the input is greater than largest uint80). * * Counterpart to Solidity's `uint80` operator. * * Requirements: * * - input must fit into 80 bits */ function toUint80(uint256 value) internal pure returns (uint80) { if (value > type(uint80).max) { revert SafeCastOverflowedUintDowncast(80, value); } return uint80(value); } /** * @dev Returns the downcasted uint72 from uint256, reverting on * overflow (when the input is greater than largest uint72). * * Counterpart to Solidity's `uint72` operator. * * Requirements: * * - input must fit into 72 bits */ function toUint72(uint256 value) internal pure returns (uint72) { if (value > type(uint72).max) { revert SafeCastOverflowedUintDowncast(72, value); } return uint72(value); } /** * @dev Returns the downcasted uint64 from uint256, reverting on * overflow (when the input is greater than largest uint64). * * Counterpart to Solidity's `uint64` operator. * * Requirements: * * - input must fit into 64 bits */ function toUint64(uint256 value) internal pure returns (uint64) { if (value > type(uint64).max) { revert SafeCastOverflowedUintDowncast(64, value); } return uint64(value); } /** * @dev Returns the downcasted uint56 from uint256, reverting on * overflow (when the input is greater than largest uint56). * * Counterpart to Solidity's `uint56` operator. * * Requirements: * * - input must fit into 56 bits */ function toUint56(uint256 value) internal pure returns (uint56) { if (value > type(uint56).max) { revert SafeCastOverflowedUintDowncast(56, value); } return uint56(value); } /** * @dev Returns the downcasted uint48 from uint256, reverting on * overflow (when the input is greater than largest uint48). * * Counterpart to Solidity's `uint48` operator. * * Requirements: * * - input must fit into 48 bits */ function toUint48(uint256 value) internal pure returns (uint48) { if (value > type(uint48).max) { revert SafeCastOverflowedUintDowncast(48, value); } return uint48(value); } /** * @dev Returns the downcasted uint40 from uint256, reverting on * overflow (when the input is greater than largest uint40). * * Counterpart to Solidity's `uint40` operator. * * Requirements: * * - input must fit into 40 bits */ function toUint40(uint256 value) internal pure returns (uint40) { if (value > type(uint40).max) { revert SafeCastOverflowedUintDowncast(40, value); } return uint40(value); } /** * @dev Returns the downcasted uint32 from uint256, reverting on * overflow (when the input is greater than largest uint32). * * Counterpart to Solidity's `uint32` operator. * * Requirements: * * - input must fit into 32 bits */ function toUint32(uint256 value) internal pure returns (uint32) { if (value > type(uint32).max) { revert SafeCastOverflowedUintDowncast(32, value); } return uint32(value); } /** * @dev Returns the downcasted uint24 from uint256, reverting on * overflow (when the input is greater than largest uint24). * * Counterpart to Solidity's `uint24` operator. * * Requirements: * * - input must fit into 24 bits */ function toUint24(uint256 value) internal pure returns (uint24) { if (value > type(uint24).max) { revert SafeCastOverflowedUintDowncast(24, value); } return uint24(value); } /** * @dev Returns the downcasted uint16 from uint256, reverting on * overflow (when the input is greater than largest uint16). * * Counterpart to Solidity's `uint16` operator. * * Requirements: * * - input must fit into 16 bits */ function toUint16(uint256 value) internal pure returns (uint16) { if (value > type(uint16).max) { revert SafeCastOverflowedUintDowncast(16, value); } return uint16(value); } /** * @dev Returns the downcasted uint8 from uint256, reverting on * overflow (when the input is greater than largest uint8). * * Counterpart to Solidity's `uint8` operator. * * Requirements: * * - input must fit into 8 bits */ function toUint8(uint256 value) internal pure returns (uint8) { if (value > type(uint8).max) { revert SafeCastOverflowedUintDowncast(8, value); } return uint8(value); } /** * @dev Converts a signed int256 into an unsigned uint256. * * Requirements: * * - input must be greater than or equal to 0. */ function toUint256(int256 value) internal pure returns (uint256) { if (value < 0) { revert SafeCastOverflowedIntToUint(value); } return uint256(value); } /** * @dev Returns the downcasted int248 from int256, reverting on * overflow (when the input is less than smallest int248 or * greater than largest int248). * * Counterpart to Solidity's `int248` operator. * * Requirements: * * - input must fit into 248 bits */ function toInt248(int256 value) internal pure returns (int248 downcasted) { downcasted = int248(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(248, value); } } /** * @dev Returns the downcasted int240 from int256, reverting on * overflow (when the input is less than smallest int240 or * greater than largest int240). * * Counterpart to Solidity's `int240` operator. * * Requirements: * * - input must fit into 240 bits */ function toInt240(int256 value) internal pure returns (int240 downcasted) { downcasted = int240(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(240, value); } } /** * @dev Returns the downcasted int232 from int256, reverting on * overflow (when the input is less than smallest int232 or * greater than largest int232). * * Counterpart to Solidity's `int232` operator. * * Requirements: * * - input must fit into 232 bits */ function toInt232(int256 value) internal pure returns (int232 downcasted) { downcasted = int232(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(232, value); } } /** * @dev Returns the downcasted int224 from int256, reverting on * overflow (when the input is less than smallest int224 or * greater than largest int224). * * Counterpart to Solidity's `int224` operator. * * Requirements: * * - input must fit into 224 bits */ function toInt224(int256 value) internal pure returns (int224 downcasted) { downcasted = int224(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(224, value); } } /** * @dev Returns the downcasted int216 from int256, reverting on * overflow (when the input is less than smallest int216 or * greater than largest int216). * * Counterpart to Solidity's `int216` operator. * * Requirements: * * - input must fit into 216 bits */ function toInt216(int256 value) internal pure returns (int216 downcasted) { downcasted = int216(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(216, value); } } /** * @dev Returns the downcasted int208 from int256, reverting on * overflow (when the input is less than smallest int208 or * greater than largest int208). * * Counterpart to Solidity's `int208` operator. * * Requirements: * * - input must fit into 208 bits */ function toInt208(int256 value) internal pure returns (int208 downcasted) { downcasted = int208(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(208, value); } } /** * @dev Returns the downcasted int200 from int256, reverting on * overflow (when the input is less than smallest int200 or * greater than largest int200). * * Counterpart to Solidity's `int200` operator. * * Requirements: * * - input must fit into 200 bits */ function toInt200(int256 value) internal pure returns (int200 downcasted) { downcasted = int200(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(200, value); } } /** * @dev Returns the downcasted int192 from int256, reverting on * overflow (when the input is less than smallest int192 or * greater than largest int192). * * Counterpart to Solidity's `int192` operator. * * Requirements: * * - input must fit into 192 bits */ function toInt192(int256 value) internal pure returns (int192 downcasted) { downcasted = int192(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(192, value); } } /** * @dev Returns the downcasted int184 from int256, reverting on * overflow (when the input is less than smallest int184 or * greater than largest int184). * * Counterpart to Solidity's `int184` operator. * * Requirements: * * - input must fit into 184 bits */ function toInt184(int256 value) internal pure returns (int184 downcasted) { downcasted = int184(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(184, value); } } /** * @dev Returns the downcasted int176 from int256, reverting on * overflow (when the input is less than smallest int176 or * greater than largest int176). * * Counterpart to Solidity's `int176` operator. * * Requirements: * * - input must fit into 176 bits */ function toInt176(int256 value) internal pure returns (int176 downcasted) { downcasted = int176(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(176, value); } } /** * @dev Returns the downcasted int168 from int256, reverting on * overflow (when the input is less than smallest int168 or * greater than largest int168). * * Counterpart to Solidity's `int168` operator. * * Requirements: * * - input must fit into 168 bits */ function toInt168(int256 value) internal pure returns (int168 downcasted) { downcasted = int168(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(168, value); } } /** * @dev Returns the downcasted int160 from int256, reverting on * overflow (when the input is less than smallest int160 or * greater than largest int160). * * Counterpart to Solidity's `int160` operator. * * Requirements: * * - input must fit into 160 bits */ function toInt160(int256 value) internal pure returns (int160 downcasted) { downcasted = int160(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(160, value); } } /** * @dev Returns the downcasted int152 from int256, reverting on * overflow (when the input is less than smallest int152 or * greater than largest int152). * * Counterpart to Solidity's `int152` operator. * * Requirements: * * - input must fit into 152 bits */ function toInt152(int256 value) internal pure returns (int152 downcasted) { downcasted = int152(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(152, value); } } /** * @dev Returns the downcasted int144 from int256, reverting on * overflow (when the input is less than smallest int144 or * greater than largest int144). * * Counterpart to Solidity's `int144` operator. * * Requirements: * * - input must fit into 144 bits */ function toInt144(int256 value) internal pure returns (int144 downcasted) { downcasted = int144(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(144, value); } } /** * @dev Returns the downcasted int136 from int256, reverting on * overflow (when the input is less than smallest int136 or * greater than largest int136). * * Counterpart to Solidity's `int136` operator. * * Requirements: * * - input must fit into 136 bits */ function toInt136(int256 value) internal pure returns (int136 downcasted) { downcasted = int136(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(136, value); } } /** * @dev Returns the downcasted int128 from int256, reverting on * overflow (when the input is less than smallest int128 or * greater than largest int128). * * Counterpart to Solidity's `int128` operator. * * Requirements: * * - input must fit into 128 bits */ function toInt128(int256 value) internal pure returns (int128 downcasted) { downcasted = int128(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(128, value); } } /** * @dev Returns the downcasted int120 from int256, reverting on * overflow (when the input is less than smallest int120 or * greater than largest int120). * * Counterpart to Solidity's `int120` operator. * * Requirements: * * - input must fit into 120 bits */ function toInt120(int256 value) internal pure returns (int120 downcasted) { downcasted = int120(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(120, value); } } /** * @dev Returns the downcasted int112 from int256, reverting on * overflow (when the input is less than smallest int112 or * greater than largest int112). * * Counterpart to Solidity's `int112` operator. * * Requirements: * * - input must fit into 112 bits */ function toInt112(int256 value) internal pure returns (int112 downcasted) { downcasted = int112(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(112, value); } } /** * @dev Returns the downcasted int104 from int256, reverting on * overflow (when the input is less than smallest int104 or * greater than largest int104). * * Counterpart to Solidity's `int104` operator. * * Requirements: * * - input must fit into 104 bits */ function toInt104(int256 value) internal pure returns (int104 downcasted) { downcasted = int104(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(104, value); } } /** * @dev Returns the downcasted int96 from int256, reverting on * overflow (when the input is less than smallest int96 or * greater than largest int96). * * Counterpart to Solidity's `int96` operator. * * Requirements: * * - input must fit into 96 bits */ function toInt96(int256 value) internal pure returns (int96 downcasted) { downcasted = int96(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(96, value); } } /** * @dev Returns the downcasted int88 from int256, reverting on * overflow (when the input is less than smallest int88 or * greater than largest int88). * * Counterpart to Solidity's `int88` operator. * * Requirements: * * - input must fit into 88 bits */ function toInt88(int256 value) internal pure returns (int88 downcasted) { downcasted = int88(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(88, value); } } /** * @dev Returns the downcasted int80 from int256, reverting on * overflow (when the input is less than smallest int80 or * greater than largest int80). * * Counterpart to Solidity's `int80` operator. * * Requirements: * * - input must fit into 80 bits */ function toInt80(int256 value) internal pure returns (int80 downcasted) { downcasted = int80(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(80, value); } } /** * @dev Returns the downcasted int72 from int256, reverting on * overflow (when the input is less than smallest int72 or * greater than largest int72). * * Counterpart to Solidity's `int72` operator. * * Requirements: * * - input must fit into 72 bits */ function toInt72(int256 value) internal pure returns (int72 downcasted) { downcasted = int72(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(72, value); } } /** * @dev Returns the downcasted int64 from int256, reverting on * overflow (when the input is less than smallest int64 or * greater than largest int64). * * Counterpart to Solidity's `int64` operator. * * Requirements: * * - input must fit into 64 bits */ function toInt64(int256 value) internal pure returns (int64 downcasted) { downcasted = int64(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(64, value); } } /** * @dev Returns the downcasted int56 from int256, reverting on * overflow (when the input is less than smallest int56 or * greater than largest int56). * * Counterpart to Solidity's `int56` operator. * * Requirements: * * - input must fit into 56 bits */ function toInt56(int256 value) internal pure returns (int56 downcasted) { downcasted = int56(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(56, value); } } /** * @dev Returns the downcasted int48 from int256, reverting on * overflow (when the input is less than smallest int48 or * greater than largest int48). * * Counterpart to Solidity's `int48` operator. * * Requirements: * * - input must fit into 48 bits */ function toInt48(int256 value) internal pure returns (int48 downcasted) { downcasted = int48(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(48, value); } } /** * @dev Returns the downcasted int40 from int256, reverting on * overflow (when the input is less than smallest int40 or * greater than largest int40). * * Counterpart to Solidity's `int40` operator. * * Requirements: * * - input must fit into 40 bits */ function toInt40(int256 value) internal pure returns (int40 downcasted) { downcasted = int40(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(40, value); } } /** * @dev Returns the downcasted int32 from int256, reverting on * overflow (when the input is less than smallest int32 or * greater than largest int32). * * Counterpart to Solidity's `int32` operator. * * Requirements: * * - input must fit into 32 bits */ function toInt32(int256 value) internal pure returns (int32 downcasted) { downcasted = int32(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(32, value); } } /** * @dev Returns the downcasted int24 from int256, reverting on * overflow (when the input is less than smallest int24 or * greater than largest int24). * * Counterpart to Solidity's `int24` operator. * * Requirements: * * - input must fit into 24 bits */ function toInt24(int256 value) internal pure returns (int24 downcasted) { downcasted = int24(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(24, value); } } /** * @dev Returns the downcasted int16 from int256, reverting on * overflow (when the input is less than smallest int16 or * greater than largest int16). * * Counterpart to Solidity's `int16` operator. * * Requirements: * * - input must fit into 16 bits */ function toInt16(int256 value) internal pure returns (int16 downcasted) { downcasted = int16(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(16, value); } } /** * @dev Returns the downcasted int8 from int256, reverting on * overflow (when the input is less than smallest int8 or * greater than largest int8). * * Counterpart to Solidity's `int8` operator. * * Requirements: * * - input must fit into 8 bits */ function toInt8(int256 value) internal pure returns (int8 downcasted) { downcasted = int8(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(8, value); } } /** * @dev Converts an unsigned uint256 into a signed int256. * * Requirements: * * - input must be less than or equal to maxInt256. */ function toInt256(uint256 value) internal pure returns (int256) { // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive if (value > uint256(type(int256).max)) { revert SafeCastOverflowedUintToInt(value); } return int256(value); } /** * @dev Cast a boolean (false or true) to a uint256 (0 or 1) with no jump. */ function toUint(bool b) internal pure returns (uint256 u) { assembly ("memory-safe") { u := iszero(iszero(b)) } } }@openzeppelin/contracts/utils/structs/EnumerableSet.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.3.0) (utils/structs/EnumerableSet.sol) // This file was procedurally generated from scripts/generate/templates/EnumerableSet.js. pragma solidity ^0.8.20; import {Arrays} from "../Arrays.sol"; /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * - Set can be cleared (all elements removed) in O(n). * * ```solidity * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`) * and `uint256` (`UintSet`) are supported. * * [WARNING] * ==== * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure * unusable. * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info. * * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an * array of EnumerableSet. * ==== */ library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position is the index of the value in the `values` array plus 1. // Position 0 is used to mean a value is not in the set. mapping(bytes32 value => uint256) _positions; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._positions[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function _remove(Set storage set, bytes32 value) private returns (bool) { // We cache the value's position to prevent multiple reads from the same storage slot uint256 position = set._positions[value]; if (position != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 valueIndex = position - 1; uint256 lastIndex = set._values.length - 1; if (valueIndex != lastIndex) { bytes32 lastValue = set._values[lastIndex]; // Move the lastValue to the index where the value to delete is set._values[valueIndex] = lastValue; // Update the tracked position of the lastValue (that was just moved) set._positions[lastValue] = position; } // Delete the slot where the moved value was stored set._values.pop(); // Delete the tracked position for the deleted slot delete set._positions[value]; return true; } else { return false; } } /** * @dev Removes all the values from a set. O(n). * * WARNING: Developers should keep in mind that this function has an unbounded cost and using it may render the * function uncallable if the set grows to the point where clearing it consumes too much gas to fit in a block. */ function _clear(Set storage set) private { uint256 len = _length(set); for (uint256 i = 0; i < len; ++i) { delete set._positions[set._values[i]]; } Arrays.unsafeSetLength(set._values, 0); } /** * @dev Returns true if the value is in the set. O(1). */ function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._positions[value] != 0; } /** * @dev Returns the number of values on the set. O(1). */ function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Set storage set, uint256 index) private view returns (bytes32) { return set._values[index]; } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function _values(Set storage set) private view returns (bytes32[] memory) { return set._values; } // Bytes32Set struct Bytes32Set { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } /** * @dev Removes all the values from a set. O(n). * * WARNING: Developers should keep in mind that this function has an unbounded cost and using it may render the * function uncallable if the set grows to the point where clearing it consumes too much gas to fit in a block. */ function clear(Bytes32Set storage set) internal { _clear(set._inner); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } /** * @dev Returns the number of values in the set. O(1). */ function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(Bytes32Set storage set) internal view returns (bytes32[] memory) { bytes32[] memory store = _values(set._inner); bytes32[] memory result; assembly ("memory-safe") { result := store } return result; } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Removes all the values from a set. O(n). * * WARNING: Developers should keep in mind that this function has an unbounded cost and using it may render the * function uncallable if the set grows to the point where clearing it consumes too much gas to fit in a block. */ function clear(AddressSet storage set) internal { _clear(set._inner); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns the number of values in the set. O(1). */ function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(AddressSet storage set) internal view returns (address[] memory) { bytes32[] memory store = _values(set._inner); address[] memory result; assembly ("memory-safe") { result := store } return result; } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Removes all the values from a set. O(n). * * WARNING: Developers should keep in mind that this function has an unbounded cost and using it may render the * function uncallable if the set grows to the point where clearing it consumes too much gas to fit in a block. */ function clear(UintSet storage set) internal { _clear(set._inner); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values in the set. O(1). */ function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(UintSet storage set) internal view returns (uint256[] memory) { bytes32[] memory store = _values(set._inner); uint256[] memory result; assembly ("memory-safe") { result := store } return result; } }contracts/presale/KeysLibrary.sol
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.20; library KeysLibrary { // Global keys for presale data (shared constants) bytes32 public constant KEY_START_TIME = keccak256("presale_startTime"); bytes32 public constant KEY_END_TIME = keccak256("presale_endTime"); bytes32 public constant KEY_TOTAL_RAISED = keccak256("presale_totalRaised"); bytes32 public constant KEY_TOTAL_SOLD = keccak256("presale_totalSold"); bytes32 public constant KEY_TOTAL_BONUS = keccak256("presale_totalBonus"); bytes32 public constant KEY_TOTAL_EARLY_BIRD_BONUS = keccak256("presale_totalEarlyBirdBonus"); // New: Global early bird bonus bytes32 public constant KEY_TOTAL_NFT_BONUS = keccak256("presale_totalNftBonus"); // New: Global NFT bonus bytes32 public constant KEY_USER_COUNT = keccak256("presale_userCount"); bytes32 public constant KEY_SELL_ADDRESS = keccak256("presale_sellAddress"); bytes32 public constant KEY_FUND_TO = keccak256("presale_fundTo"); bytes32 public constant KEY_FINALIZED = keccak256("presale_finalized"); bytes32 public constant KEY_SILVER_NFT = keccak256("presale_silverNFT"); bytes32 public constant KEY_GOLD_NFT = keccak256("presale_goldNFT"); bytes32 public constant KEY_PLATINUM_NFT = keccak256("presale_platinumNFT"); // Prefixes for per-user composite keys bytes32 public constant KEY_PREFIX_USER_UINT = keccak256("presale_user_uint_"); bytes32 public constant KEY_PREFIX_USER_BOOL = keccak256("presale_user_bool_"); // User-specific suffixes (for composite keys) bytes32 public constant USER_SUFFIX_CONTRIBUTIONS = keccak256("contributions"); bytes32 public constant USER_SUFFIX_PURCHASED_TOKENS = keccak256("purchasedTokens"); bytes32 public constant USER_SUFFIX_BONUS_TOKENS = keccak256("bonusTokens"); bytes32 public constant USER_SUFFIX_CLAIMED_TOKENS = keccak256("claimedTokens"); bytes32 public constant USER_SUFFIX_REFUNDS = keccak256("refunds"); bytes32 public constant USER_SUFFIX_HAS_PURCHASED = keccak256("hasPurchased"); bytes32 public constant USER_SUFFIX_EARLY_BIRD_BONUS = keccak256("earlyBirdBonus"); bytes32 public constant USER_SUFFIX_NFT_BONUS = keccak256("nftBonus"); // Helper function to generate composite user key function getUserUintKey(bytes32 suffix, address user) internal pure returns (bytes32) { return keccak256(abi.encode(KEY_PREFIX_USER_UINT, suffix, user)); } function getUserBoolKey(bytes32 suffix, address user) internal pure returns (bytes32) { return keccak256(abi.encode(KEY_PREFIX_USER_BOOL, suffix, user)); } }contracts/presale/TokenBase.sol
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.20; import "../repo/RoleBase.sol"; import "../utils/EnumerableValues.sol"; import "../utils/Role.sol"; contract TokenBase { using EnumerableSet for EnumerableSet.Bytes32Set; using EnumerableSet for EnumerableSet.AddressSet; using EnumerableSet for EnumerableSet.UintSet; using EnumerableValues for EnumerableSet.Bytes32Set; using EnumerableValues for EnumerableSet.AddressSet; using EnumerableValues for EnumerableSet.UintSet; bytes32 public constant ROLE_TOKEN_WRITER = keccak256(abi.encode("TOKEN_WRITER")); RoleBase roleBase; mapping(bytes32 => uint256) public uintValues; mapping(bytes32 => int256) public intValues; mapping(bytes32 => address) public addressValues; mapping(bytes32 => bool) public boolValues; mapping(bytes32 => string) public stringValues; mapping(bytes32 => bytes32) public bytes32Values; mapping(bytes32 => uint256[]) public uintArrayValues; mapping(bytes32 => int256[]) public intArrayValues; mapping(bytes32 => address[]) public addressArrayValues; mapping(bytes32 => bool[]) public boolArrayValues; mapping(bytes32 => string[]) public stringArrayValues; mapping(bytes32 => bytes32[]) public bytes32ArrayValues; mapping(bytes32 => EnumerableSet.AddressSet) internal addressSets; mapping(bytes32 => EnumerableSet.Bytes32Set) internal bytes32Sets; mapping(bytes32 => EnumerableSet.UintSet) internal uintSets; error UnauthorizedOrderWrite(address account); modifier onlyTokenWriter() { if (!roleBase.hasRole(msg.sender, ROLE_TOKEN_WRITER)) { revert UnauthorizedOrderWrite(msg.sender); } _; } constructor(RoleBase _roleBase) { roleBase = _roleBase; } function getUint(bytes32 key) external view returns (uint256) { return uintValues[key]; } function setUint(bytes32 key, uint256 value) external onlyTokenWriter returns (uint256) { uintValues[key] = value; return value; } function removeUint(bytes32 key) external onlyTokenWriter { delete uintValues[key]; } function addDeltaToUint(bytes32 key, int256 value, string memory errMsg) external onlyTokenWriter returns (uint256) { uint256 curValue = uintValues[key]; if (value < 0 && uint256(-value) > curValue) { revert(errMsg); } uint256 nextUint; if (value >= 0) { nextUint = curValue + uint256(value); } else { nextUint = curValue - uint256(-value); } uintValues[key] = nextUint; return nextUint; } function incrementUint(bytes32 key, uint256 value) external onlyTokenWriter returns (uint256) { uint256 nextUint = uintValues[key] + value; uintValues[key] = nextUint; return nextUint; } function decrementUint(bytes32 key, uint256 value) external onlyTokenWriter returns (uint256) { uint256 nextUint = uintValues[key] - value; uintValues[key] = nextUint; return nextUint; } function getInt(bytes32 key) external view returns (int256) { return intValues[key]; } function setInt(bytes32 key, int256 value) external onlyTokenWriter returns (int256) { intValues[key] = value; return value; } function removeInt(bytes32 key) external onlyTokenWriter { delete intValues[key]; } function incrementInt(bytes32 key, int256 value) external onlyTokenWriter returns (int256) { int256 nextInt = intValues[key] + value; intValues[key] = nextInt; return nextInt; } function decrementInt(bytes32 key, int256 value) external onlyTokenWriter returns (int256) { int256 nextInt = intValues[key] - value; intValues[key] = nextInt; return nextInt; } function getAddress(bytes32 key) external view returns (address) { return addressValues[key]; } function setAddress(bytes32 key, address value) external onlyTokenWriter returns (address) { addressValues[key] = value; return value; } function removeAddress(bytes32 key) external onlyTokenWriter { delete addressValues[key]; } function getBool(bytes32 key) external view returns (bool) { return boolValues[key]; } function setBool(bytes32 key, bool value) external onlyTokenWriter returns (bool) { boolValues[key] = value; return value; } function removeBool(bytes32 key) external onlyTokenWriter { delete boolValues[key]; } function getString(bytes32 key) external view returns (string memory) { return stringValues[key]; } function setString(bytes32 key, string memory value) external onlyTokenWriter returns (string memory) { stringValues[key] = value; return value; } function removeString(bytes32 key) external onlyTokenWriter { delete stringValues[key]; } function getBytes32(bytes32 key) external view returns (bytes32) { return bytes32Values[key]; } function setBytes32(bytes32 key, bytes32 value) external onlyTokenWriter returns (bytes32) { bytes32Values[key] = value; return value; } function removeBytes32(bytes32 key) external onlyTokenWriter { delete bytes32Values[key]; } function getUintArray(bytes32 key) external view returns (uint256[] memory) { return uintArrayValues[key]; } function setUintArray(bytes32 key, uint256[] memory value) external onlyTokenWriter { uintArrayValues[key] = value; } function removeUintArray(bytes32 key) external onlyTokenWriter { delete uintArrayValues[key]; } function getIntArray(bytes32 key) external view returns (int256[] memory) { return intArrayValues[key]; } function setIntArray(bytes32 key, int256[] memory value) external onlyTokenWriter { intArrayValues[key] = value; } function removeIntArray(bytes32 key) external onlyTokenWriter { delete intArrayValues[key]; } function getAddressArray(bytes32 key) external view returns (address[] memory) { return addressArrayValues[key]; } function setAddressArray(bytes32 key, address[] memory value) external onlyTokenWriter { addressArrayValues[key] = value; } function removeAddressArray(bytes32 key) external onlyTokenWriter { delete addressArrayValues[key]; } function getBoolArray(bytes32 key) external view returns (bool[] memory) { return boolArrayValues[key]; } function setBoolArray(bytes32 key, bool[] memory value) external onlyTokenWriter { boolArrayValues[key] = value; } function removeBoolArray(bytes32 key) external onlyTokenWriter { delete boolArrayValues[key]; } function getStringArray(bytes32 key) external view returns (string[] memory) { return stringArrayValues[key]; } function setStringArray(bytes32 key, string[] memory value) external onlyTokenWriter { stringArrayValues[key] = value; } function removeStringArray(bytes32 key) external onlyTokenWriter { delete stringArrayValues[key]; } function getBytes32Array(bytes32 key) external view returns (bytes32[] memory) { return bytes32ArrayValues[key]; } function setBytes32Array(bytes32 key, bytes32[] memory value) external onlyTokenWriter { bytes32ArrayValues[key] = value; } function removeBytes32Array(bytes32 key) external onlyTokenWriter { delete bytes32ArrayValues[key]; } function containsAddress(bytes32 setKey, address value) external view returns (bool) { return addressSets[setKey].contains(value); } function getAddressCount(bytes32 setKey) external view returns (uint256) { return addressSets[setKey].length(); } function getAddressValuesAt(bytes32 setKey, uint256 start, uint256 end) external view returns (address[] memory) { return addressSets[setKey].valuesAt(start, end); } function addAddress(bytes32 setKey, address value) external onlyTokenWriter { addressSets[setKey].add(value); } function removeAddress(bytes32 setKey, address value) external onlyTokenWriter { addressSets[setKey].remove(value); } function containsBytes32(bytes32 setKey, bytes32 value) external view returns (bool) { return bytes32Sets[setKey].contains(value); } function getBytes32Count(bytes32 setKey) external view returns (uint256) { return bytes32Sets[setKey].length(); } function getBytes32ValuesAt(bytes32 setKey, uint256 start, uint256 end) external view returns (bytes32[] memory) { return bytes32Sets[setKey].valuesAt(start, end); } function addBytes32(bytes32 setKey, bytes32 value) external onlyTokenWriter { bytes32Sets[setKey].add(value); } function removeBytes32(bytes32 setKey, bytes32 value) external onlyTokenWriter { bytes32Sets[setKey].remove(value); } function containsUint(bytes32 setKey, uint256 value) external view returns (bool) { return uintSets[setKey].contains(value); } function getUintCount(bytes32 setKey) external view returns (uint256) { return uintSets[setKey].length(); } function getUintValuesAt(bytes32 setKey, uint256 start, uint256 end) external view returns (uint256[] memory) { return uintSets[setKey].valuesAt(start, end); } function addUint(bytes32 setKey, uint256 value) external onlyTokenWriter { uintSets[setKey].add(value); } function removeUint(bytes32 setKey, uint256 value) external onlyTokenWriter { uintSets[setKey].remove(value); } }contracts/repo/RoleBase.sol
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.20; import "../utils/Role.sol"; contract RoleBase { mapping(address => mapping (bytes32 => bool)) roleStore; error UnauthorizedRoleAdmin(address account); modifier onlyRoleAdmin() { if (!hasRole(msg.sender, Role.ROLE_ADMIN)) { revert UnauthorizedRoleAdmin(msg.sender); } _; } constructor() { _grantRole(msg.sender, Role.ROLE_ADMIN); } function grantRole(address account, bytes32 roleKey) external onlyRoleAdmin { _grantRole(account, roleKey); } function revokeRole(address account, bytes32 roleKey) external onlyRoleAdmin { _revokeRole(account, roleKey); } function hasRole(address account, bytes32 roleKey) public view returns (bool) { return roleStore[account][roleKey]; } function _grantRole(address account, bytes32 roleKey) internal { roleStore[account][roleKey] = true; } function _revokeRole(address account, bytes32 roleKey) internal { roleStore[account][roleKey] = false; } }contracts/utils/EnumerableValues.sol
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.20; import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol"; library EnumerableValues { using EnumerableSet for EnumerableSet.Bytes32Set; using EnumerableSet for EnumerableSet.AddressSet; using EnumerableSet for EnumerableSet.UintSet; function valuesAt(EnumerableSet.Bytes32Set storage set, uint256 start, uint256 end) internal view returns (bytes32[] memory) { uint256 max = set.length(); if (end > max) { end = max; } bytes32[] memory items = new bytes32[](end - start); for (uint256 i = start; i < end; i++) { items[i - start] = set.at(i); } return items; } function valuesAt(EnumerableSet.AddressSet storage set, uint256 start, uint256 end) internal view returns (address[] memory) { uint256 max = set.length(); if (end > max) { end = max; } address[] memory items = new address[](end - start); for (uint256 i = start; i < end; i++) { items[i - start] = set.at(i); } return items; } function valuesAt(EnumerableSet.UintSet storage set, uint256 start, uint256 end) internal view returns (uint256[] memory) { if (start >= set.length()) { return new uint256[](0); } uint256 max = set.length(); if (end > max) { end = max; } uint256[] memory items = new uint256[](end - start); for (uint256 i = start; i < end; i++) { items[i - start] = set.at(i); } return items; } }contracts/utils/Role.sol
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.20; library Role { uint256 public constant ACCESS_NOACCESS = 0; uint256 public constant ACCESS_DEPOSIT = 1; uint256 public constant ACCESS_READER = 2; uint256 public constant ACCESS_AUTHOR = 3; uint256 public constant ACCESS_EDITOR = 4; uint256 public constant ACCESS_DESIGNER = 5; uint256 public constant ACCESS_MANAGER = 6; uint256 public constant DATA_READ = 4; uint256 public constant DATA_WRITE = 2; uint256 public constant DATA_EXECUTE = 1; bytes32 public constant ROLE_ADMIN = keccak256(abi.encode("ROLE_ADMIN")); bytes32 public constant ROLE_ACCESSNOACCESS = keccak256(abi.encode("ROLE_ACCESS", ACCESS_NOACCESS)); bytes32 public constant ROLE_DATA_WRITE = keccak256(abi.encode("DATA_ACCESS", DATA_WRITE)); bytes32 public constant ROLE_POOL_KEEPER = keccak256(abi.encode("POOL_KEEPER")); bytes32 public constant ROLE_ORACLE_KEEPER = keccak256(abi.encode("ORACLE_KEEPER")); }
ABI · 59 entries
json
[
{
"type": "constructor",
"inputs": [
{
"name": "_startTime",
"type": "uint256",
"internalType": "uint256"
},
{
"name": "_endTime",
"type": "uint256",
"internalType": "uint256"
},
{
"name": "_fundTo",
"type": "address",
"internalType": "address"
},
{
"name": "_tokenBase",
"type": "address",
"internalType": "address"
},
{
"name": "_silverNFT",
"type": "address",
"internalType": "address"
},
{
"name": "_goldNFT",
"type": "address",
"internalType": "address"
},
{
"name": "_platinumNFT",
"type": "address",
"internalType": "address"
}
],
"stateMutability": "nonpayable"
},
{
"name": "OwnableInvalidOwner",
"type": "error",
"inputs": [
{
"name": "owner",
"type": "address",
"internalType": "address"
}
]
},
{
"name": "OwnableUnauthorizedAccount",
"type": "error",
"inputs": [
{
"name": "account",
"type": "address",
"internalType": "address"
}
]
},
{
"name": "ReentrancyGuardReentrantCall",
"type": "error",
"inputs": []
},
{
"name": "EndTimeUpdated",
"type": "event",
"inputs": [
{
"name": "newEndTime",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
}
],
"anonymous": false
},
{
"name": "FundToUpdated",
"type": "event",
"inputs": [
{
"name": "newFundTo",
"type": "address",
"indexed": false,
"internalType": "address"
}
],
"anonymous": false
},
{
"name": "FundsTransferred",
"type": "event",
"inputs": [
{
"name": "fundTo",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "amount",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
}
],
"anonymous": false
},
{
"name": "NftContractsUpdated",
"type": "event",
"inputs": [
{
"name": "silver",
"type": "address",
"indexed": false,
"internalType": "address"
},
{
"name": "gold",
"type": "address",
"indexed": false,
"internalType": "address"
},
{
"name": "platinum",
"type": "address",
"indexed": false,
"internalType": "address"
}
],
"anonymous": false
},
{
"name": "OwnershipTransferred",
"type": "event",
"inputs": [
{
"name": "previousOwner",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "newOwner",
"type": "address",
"indexed": true,
"internalType": "address"
}
],
"anonymous": false
},
{
"name": "PresaleFinalized",
"type": "event",
"inputs": [
{
"name": "success",
"type": "bool",
"indexed": false,
"internalType": "bool"
}
],
"anonymous": false
},
{
"name": "PresaleInitialized",
"type": "event",
"inputs": [
{
"name": "startTime",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
},
{
"name": "endTime",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
},
{
"name": "fundTo",
"type": "address",
"indexed": false,
"internalType": "address"
},
{
"name": "silverNFT",
"type": "address",
"indexed": false,
"internalType": "address"
},
{
"name": "goldNFT",
"type": "address",
"indexed": false,
"internalType": "address"
},
{
"name": "platinumNFT",
"type": "address",
"indexed": false,
"internalType": "address"
}
],
"anonymous": false
},
{
"name": "RefundClaimed",
"type": "event",
"inputs": [
{
"name": "claimer",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "amount",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
}
],
"anonymous": false
},
{
"name": "StartTimeUpdated",
"type": "event",
"inputs": [
{
"name": "newStartTime",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
}
],
"anonymous": false
},
{
"name": "TokensClaimed",
"type": "event",
"inputs": [
{
"name": "claimer",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "amount",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
}
],
"anonymous": false
},
{
"name": "TokensPurchased",
"type": "event",
"inputs": [
{
"name": "buyer",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "amountTokenSell",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
},
{
"name": "earlyBirdBonusTokenSell",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
},
{
"name": "nftBonusTokenSell",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
},
{
"name": "amountMainCoin",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
}
],
"anonymous": false
},
{
"name": "BASIS_DIVISOR",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "DECIMALS_BUY",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "DECIMALS_SELL",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "HARD_CAP",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "INITIAL_PRICE",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "MAX_PURCHASE",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "MIN_PURCHASE",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "NFT_GOLD_FACTOR",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "NFT_MAX_SCORE",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "NFT_PLATINUM_FACTOR",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "NFT_REWARD_DIVISOR",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "NFT_SILVER_FACTOR",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "OVER_HARD_BONUS_RATE",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "PRICE_RATE",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "SELL_TOKEN_TOTAL",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "SOFT_CAP",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "accountInfo",
"type": "function",
"inputs": [
{
"name": "_account",
"type": "address",
"internalType": "address"
}
],
"outputs": [
{
"name": "",
"type": "uint256[]",
"internalType": "uint256[]"
}
],
"stateMutability": "view"
},
{
"name": "basicInfo",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256[]",
"internalType": "uint256[]"
}
],
"stateMutability": "view"
},
{
"name": "buyTokens",
"type": "function",
"inputs": [],
"outputs": [],
"stateMutability": "payable"
},
{
"name": "claimRefund",
"type": "function",
"inputs": [],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"name": "finalizePresale",
"type": "function",
"inputs": [],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"name": "finalized",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "bool",
"internalType": "bool"
}
],
"stateMutability": "view"
},
{
"name": "getStage",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "getUserNftScore",
"type": "function",
"inputs": [
{
"name": "user",
"type": "address",
"internalType": "address"
}
],
"outputs": [
{
"name": "score",
"type": "uint256",
"internalType": "uint256"
},
{
"name": "bonusRate",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "goldNFT",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "address",
"internalType": "contract IERC721"
}
],
"stateMutability": "view"
},
{
"name": "initializePresale",
"type": "function",
"inputs": [
{
"name": "_startTime",
"type": "uint256",
"internalType": "uint256"
},
{
"name": "_endTime",
"type": "uint256",
"internalType": "uint256"
},
{
"name": "_fundTo",
"type": "address",
"internalType": "address"
},
{
"name": "_silverNFT",
"type": "address",
"internalType": "address"
},
{
"name": "_goldNFT",
"type": "address",
"internalType": "address"
},
{
"name": "_platinumNFT",
"type": "address",
"internalType": "address"
}
],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"name": "initialized",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "bool",
"internalType": "bool"
}
],
"stateMutability": "view"
},
{
"name": "owner",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "address",
"internalType": "address"
}
],
"stateMutability": "view"
},
{
"name": "platinumNFT",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "address",
"internalType": "contract IERC721"
}
],
"stateMutability": "view"
},
{
"name": "renounceOwnership",
"type": "function",
"inputs": [],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"name": "setEndTime",
"type": "function",
"inputs": [
{
"name": "_newEndTime",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"name": "setFundTo",
"type": "function",
"inputs": [
{
"name": "_newFundTo",
"type": "address",
"internalType": "address"
}
],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"name": "setNftContracts",
"type": "function",
"inputs": [
{
"name": "_silverNFT",
"type": "address",
"internalType": "address"
},
{
"name": "_goldNFT",
"type": "address",
"internalType": "address"
},
{
"name": "_platinumNFT",
"type": "address",
"internalType": "address"
}
],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"name": "setStartTime",
"type": "function",
"inputs": [
{
"name": "_newStartTime",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"name": "silverNFT",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "address",
"internalType": "contract IERC721"
}
],
"stateMutability": "view"
},
{
"name": "stageInfo",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
},
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "stages",
"type": "function",
"inputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [
{
"name": "start",
"type": "uint256",
"internalType": "uint256"
},
{
"name": "end",
"type": "uint256",
"internalType": "uint256"
},
{
"name": "price",
"type": "uint256",
"internalType": "uint256"
},
{
"name": "bonusPercentage",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "status",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256[]",
"internalType": "uint256[]"
}
],
"stateMutability": "view"
},
{
"name": "tokenBase",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "address",
"internalType": "contract TokenBase"
}
],
"stateMutability": "view"
},
{
"name": "tokens",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "address[]",
"internalType": "address[]"
}
],
"stateMutability": "view"
},
{
"name": "transferOwnership",
"type": "function",
"inputs": [
{
"name": "newOwner",
"type": "address",
"internalType": "address"
}
],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"name": "userInfo",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256[]",
"internalType": "uint256[]"
}
],
"stateMutability": "view"
},
{
"name": "withdrawFunds",
"type": "function",
"inputs": [],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"type": "receive",
"stateMutability": "payable"
}
]