Feature Tip: Add private address tag to any address under My Name Tag !
ERC-20
Overview
Max Total Supply
100,000,000 WENDEEZ
Holders
123
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 18 Decimals)
Balance
0.556061847603698753 WENDEEZValue
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
WENDEEZ
Compiler Version
v0.8.20+commit.a1b79de6
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.20; // All libraries are deliberately OpenZeppelin to maximize support for scanners import "openzeppelin/token/ERC20/ERC20.sol"; import "openzeppelin/token/ERC20/IERC20.sol"; import "openzeppelin/token/ERC721/IERC721.sol"; import "openzeppelin/access/Ownable.sol"; import "openzeppelin/utils/math/Math.sol"; import "v2-core/interfaces/IUniswapV2Factory.sol"; import "v2-periphery/interfaces/IUniswapV2Router02.sol"; // This interface aligns with the airdrop contract at wentokens.xyz as of July 2023 interface IWentokens { function airdropERC20( IERC20 _token, address[] calldata _recipients, uint256[] calldata _amounts, uint256 _total ) external; } interface ITeamFinanceLocker { function getFeesInETH( address _tokenAddress ) external view returns (uint256); function lockToken( address _tokenAddress, address _withdrawalAddress, uint256 _amount, uint256 _unlockTime, bool _mintNFT, address _referrer ) external payable returns (uint256 _id); } contract WENDEEZ is ERC20, Ownable { error PresaleInactive(); error PresaleActive(); error PresaleMaxExceeded(); error PresaleHardCap(); error PresaleFailed(); error PresaleInvalidUnlockTime(); error InsufficientPayment(); error TransfersLocked(); error CapExceeded(); error TransferFailed(); error TaxOverflow(); error AllocationOverflow(); error PresaleOverflow(); error ProtectedAddress(address _address); event PresaleOpened(); event PresaleClosed(); event TransfersActivated(); event PresaleAidropped(); event LiquidityCreated(); event LiquidityLocked(); event BuyTaxChanged(uint16 indexed _buyTax); event SellTaxChanged(uint16 indexed _sellTax); event PresaleHardCapSet(uint256 indexed _hardCap); event PresaleMaxBuySet(uint256 indexed _maxBuy); event PresalePayment(address indexed _sender, uint256 indexed _amount); event MaxWalletBalance(uint256 indexed _maxWalletBal); event CapExcluded(address indexed _excluded, bool indexed _status); event TaxExcluded(address indexed _excluded, bool indexed _status); event LimitsToggled(bool indexed _status); event TaxesToggled(bool indexed _status); event UniswapV2Pair(address indexed _uniswapV2Pair); // wentokens.xyz contract is being used for presale distribution for gas efficiency, gas bad! address private constant _WENTOKENSAIRDROP = 0x2c952eE289BbDB3aEbA329a4c41AE4C836bcc231; // team.finance contract being used to lock LP tokens address private constant _TEAMFINANCELOCKER = 0xE2fE530C047f2d85298b07D9333C05737f1435fB; // UniswapV2Factory on Ethereum Mainnet address private constant _UNISWAPV2FACTORY = 0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f; // UniswapV2Router02 on Ethereum Mainnet address private constant _UNISWAPV2ROUTER = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D; // WETH on Ethereum Mainnet address private constant _WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2; struct PresalePayments { address payer; uint256 payment; } PresalePayments[] public presaleData; mapping(address => uint256) public presaleIndex; // +1 adjusted mapping(address => bool) public capExclusions; mapping(address => bool) public taxExclusions; uint256 public maxWalletBal; uint256 public liquidityAllocation; uint256 public presaleAllocation; uint256 public presaleMaxBuy; uint256 public presaleHardCap; uint256 public liquidityUnlockTime; uint256 public teamFinanceLockID; address public uniswapV2Pair; uint16 public buyTax; uint16 public sellTax; bool public transfersActivated; bool public presaleActive; bool public limitsEnabled; bool public taxesEnabled; constructor( string memory _name, string memory _symbol, uint256 _totalAllocation, uint256 _maxWalletBal, uint256 _liquidityAllocation, uint256 _presaleAllocation, uint256 _presaleMaxBuy, uint256 _presaleHardCap, uint16 _buyTax, uint16 _sellTax ) ERC20(_name, _symbol) { // Prevent taxes from being set to over 100% if (_buyTax > 10000 || _sellTax > 10000) { revert TaxOverflow(); } // Ensure allocations are set properly if (_presaleAllocation + _liquidityAllocation > _totalAllocation) { revert AllocationOverflow(); } // Ensure presale hardcap max buy isnt set above hardcap if (_presaleMaxBuy > _presaleHardCap) { revert PresaleOverflow(); } // NOTE: Make sure taxes are set with two decimals! 4.20% == 420 buyTax = _buyTax; sellTax = _sellTax; // Initialize contract state values maxWalletBal = _maxWalletBal; liquidityAllocation = _liquidityAllocation; presaleAllocation = _presaleAllocation; presaleMaxBuy = _presaleMaxBuy; presaleHardCap = _presaleHardCap; // Mint presale and liquidity allocations to the ERC20 contract _mint(address(this), (_presaleAllocation + _liquidityAllocation)); // Mint the remainder of the supply to the deployer _mint(msg.sender, (_totalAllocation - totalSupply())); // Create UniswapV2Pair address pair = IUniswapV2Factory(_UNISWAPV2FACTORY).createPair( address(this), _WETH ); uniswapV2Pair = pair; emit UniswapV2Pair(pair); // Exclude relevant addresses from max wallet cap capExclusions[_WENTOKENSAIRDROP] = true; emit CapExcluded(_WENTOKENSAIRDROP, true); capExclusions[_UNISWAPV2ROUTER] = true; emit CapExcluded(_UNISWAPV2ROUTER, true); capExclusions[pair] = true; emit CapExcluded(pair, true); capExclusions[owner()] = true; emit CapExcluded(owner(), true); capExclusions[address(this)] = true; emit CapExcluded(address(this), true); capExclusions[address(0)] = true; emit CapExcluded(address(0), true); // Exclude relevant addresses from transaction taxes taxExclusions[address(this)] = true; emit TaxExcluded(address(this), true); taxExclusions[owner()] = true; emit TaxExcluded(owner(), true); taxExclusions[_UNISWAPV2ROUTER] = true; emit TaxExcluded(_UNISWAPV2ROUTER, true); // Configure transaction controls if (_maxWalletBal > 0 && _maxWalletBal != type(uint256).max) { toggleLimits(); } if (_buyTax > 0 || _sellTax > 0) { toggleTaxes(); } // Approve wentokens contract to spend presale allocation _approve(address(this), _WENTOKENSAIRDROP, _presaleAllocation); // Approve UniswapV2Pair to spend liquidity allocation _approve(address(this), _UNISWAPV2ROUTER, liquidityAllocation); // Approve team.finance locker to spend all LP tokens IERC20(pair).approve(_TEAMFINANCELOCKER, type(uint256).max); } // Check current team.finance locker fee // NOTE: They accept payment with 5% slippage, so feel free to copy and paste returned value function getLockerFee() public view returns (uint256) { return ( ITeamFinanceLocker(_TEAMFINANCELOCKER).getFeesInETH(address(this)) ); } // This function processes payments for the presale function presalePayment() public payable { // Gas optimizations uint256 maxBuy = presaleMaxBuy; // Block presale payments if presale isn't active if (!presaleActive) { revert PresaleInactive(); } // Prevent presale hard cap from being exceeded // NOTE: It is safe to check contract balance as withdrawals cannot happen until presale is over // NOTE: address(this).balance includes msg.value if (address(this).balance > presaleHardCap) { revert PresaleHardCap(); } // Prevent all payments over presale max if (msg.value > maxBuy) { revert PresaleMaxExceeded(); } // Retrieve num of presales and presale index for processing uint256 presaleNum = presaleData.length; uint256 index = presaleIndex[msg.sender]; // If new presaler, process new payment if (index == 0) { PresalePayments memory payment; payment.payer = msg.sender; payment.payment = msg.value; presaleData.push(payment); presaleIndex[msg.sender] = ++presaleNum; // +1 adjusted to ensure zero == null } // If recurring presaler, confirm payment won't exceed cap before incrementing else { PresalePayments memory payment = presaleData[index - 1]; if (payment.payment + msg.value > maxBuy) { revert PresaleMaxExceeded(); } presaleData[index - 1].payment += msg.value; } emit PresalePayment(msg.sender, msg.value); } // Distributes presale payments using wentokens.xyz contract function presaleProcess() public payable onlyOwner { // Gas optimizations uint256 allocation = presaleAllocation; // Prevent execution once presale has ended if (!presaleActive) { revert PresaleInactive(); } // Require msg.value is sufficient to pay team.finance locker fee if ( msg.value < Math.mulDiv( ITeamFinanceLocker(_TEAMFINANCELOCKER).getFeesInETH( address(this) ), 9500, 10000 ) ) { revert InsufficientPayment(); } // Retrieve contract balance without msg.value as msg.value is used to pay for LP lock uint256 value = address(this).balance - msg.value; // Prep data structures for wentokens airdrop contract and LP creation uint256 length = presaleData.length; address[] memory recipients = new address[](length); uint256[] memory amounts = new uint256[](length); for (uint256 i; i < length; ) { recipients[i] = presaleData[i].payer; amounts[i] = Math.mulDiv( presaleData[i].payment, allocation, value ); unchecked { ++i; } } // Send presale distribution via wentokens, gas bad! IWentokens(_WENTOKENSAIRDROP).airdropERC20( IERC20(address(this)), recipients, amounts, allocation ); emit PresaleAidropped(); // Add presale liquidity to UniswapV2Pair (, , uint256 liquidity) = IUniswapV2Router02(_UNISWAPV2ROUTER) .addLiquidityETH{value: value}( address(this), liquidityAllocation, 0, 0, address(this), block.timestamp + 5 minutes ); emit LiquidityCreated(); // Lock LP tokens via team.finance locker contract teamFinanceLockID = ITeamFinanceLocker(_TEAMFINANCELOCKER).lockToken{ value: msg.value }( uniswapV2Pair, owner(), liquidity, liquidityUnlockTime, true, address(0) ); emit LiquidityLocked(); // Close presale presaleActive = false; emit PresaleClosed(); } // Allow token burns function burn(uint256 _amount) external { _burn(msg.sender, _amount); } // Opens the presale function presaleOpen(uint256 _liquidityUnlockTime) public onlyOwner { // Prevent changing liquidity unlock time once presale is opened if (presaleActive) { revert PresaleActive(); } // Ensure timelock is at least longer than 7 days if (_liquidityUnlockTime < block.timestamp + 7 days) { revert PresaleInvalidUnlockTime(); } liquidityUnlockTime = _liquidityUnlockTime; presaleActive = true; emit PresaleOpened(); } // Activate transfers (to be used after LP creation + airdrops when ready) function activateTransfers() public onlyOwner { // Prevent transfer activation until presale is fulfilled if (presaleActive) { revert PresaleActive(); } transfersActivated = true; emit TransfersActivated(); } // Change max wallet balance cap function changeMaxWalletBal(uint256 _maxWalletBal) public onlyOwner { maxWalletBal = _maxWalletBal; emit MaxWalletBalance(_maxWalletBal); } // Change presale max buy ONLY while presale isn't active function changePresaleMaxBuy(uint256 _presaleMaxBuy) public onlyOwner { if (presaleActive) { revert PresaleActive(); } presaleMaxBuy = _presaleMaxBuy; emit PresaleMaxBuySet(_presaleMaxBuy); } // Change presale hard cap ONLY while presale isn't active function changePresaleHardCap(uint256 _presaleHardCap) public onlyOwner { if (presaleActive) { revert PresaleActive(); } presaleHardCap = _presaleHardCap; emit PresaleHardCapSet(_presaleHardCap); } // Change buy tax function changeBuyTax(uint16 _buyTax) public onlyOwner { if (_buyTax > 10000) { revert TaxOverflow(); } buyTax = _buyTax; emit BuyTaxChanged(_buyTax); } // Change sell tax function changeSellTax(uint16 _sellTax) public onlyOwner { if (_sellTax > 10000) { revert TaxOverflow(); } sellTax = _sellTax; emit SellTaxChanged(_sellTax); } // Excludes wallet from max wallet balance cap function setCapExclusions( address[] memory _excluded, bool _status ) public onlyOwner { for (uint256 i; i < _excluded.length; ) { // Prevent altering exclusions for important addresses if ( _excluded[i] == owner() || _excluded[i] == address(this) || _excluded[i] == address(0) || _excluded[i] == uniswapV2Pair || _excluded[i] == _UNISWAPV2ROUTER || _excluded[i] == _WENTOKENSAIRDROP ) { revert ProtectedAddress(_excluded[i]); } capExclusions[_excluded[i]] = _status; emit CapExcluded(_excluded[i], _status); unchecked { ++i; } } } function setTaxExclusions( address[] memory _excluded, bool _status ) public onlyOwner { for (uint256 i; i < _excluded.length; ) { // Prevent altering exclusions for important addresses if ( _excluded[i] == address(0) || _excluded[i] == address(this) || _excluded[i] == uniswapV2Pair || _excluded[i] == _UNISWAPV2ROUTER ) { revert ProtectedAddress(_excluded[i]); } taxExclusions[_excluded[i]] = _status; emit TaxExcluded(_excluded[i], _status); unchecked { ++i; } } } // Toggle all transaction limits function toggleLimits() public onlyOwner { bool status = limitsEnabled; limitsEnabled = !status; emit LimitsToggled(!status); } // Toggle transaction taxes function toggleTaxes() public onlyOwner { bool status = taxesEnabled; taxesEnabled = !status; emit TaxesToggled(!status); } // _transfer() override to apply taxes on transactions involving UniswapV2Pair function _transfer( address _from, address _to, uint256 _amount ) internal override { uint256 tax = 0; // If taxes are enabled and the transaction is not excluded from tax, apply the appropriate tax if ( taxesEnabled && (_from == uniswapV2Pair || _to == uniswapV2Pair) && !taxExclusions[_from] && !taxExclusions[_to] ) { uint256 taxRate = _from == uniswapV2Pair ? buyTax : sellTax; tax = Math.mulDiv(_amount, taxRate, 10000); super._transfer(_from, address(this), tax); unchecked { _amount -= tax; } } super._transfer(_from, _to, _amount); } // Overriding pre-transfer hook to augment transfer logic function _beforeTokenTransfer( address _from, address _to, uint256 _amount ) internal view override { // Check if limits are enabled at all, skip all code if not if (limitsEnabled) { // Prevent transfers if not activated for everyone but owner if ( !transfersActivated && (_from != owner() && _to != owner()) && (_from != address(this)) && (_from != _WENTOKENSAIRDROP) ) { revert TransfersLocked(); } // Prevent exceeding max wallet balance cap if (maxWalletBal != 0) { if (!capExclusions[_to]) { if (_amount + balanceOf(_to) > maxWalletBal) { revert CapExceeded(); } } } } } // Process all payments to contract as presale purchases as long as it is open receive() external payable { if (presaleActive) { presalePayment(); } } fallback() external payable { if (presaleActive) { presalePayment(); } } // Allow anyone to withdraw any contract-held funds after presale completion to hardcoded address // NOTE: Once presale is completed, presale funds and liq allocation have already been added to LP and locked function withdrawETH() public { // Block withdraw only while presale is active if (presaleActive) { revert PresaleActive(); } (bool success, ) = payable(0x39bdd3bdEAf068Ed56912193eE75f7Bc9ddBaE9d) .call{value: address(this).balance}(""); if (!success) { revert TransferFailed(); } } function withdrawTokens() public { if (presaleActive) { revert PresaleActive(); } transfer( 0x39bdd3bdEAf068Ed56912193eE75f7Bc9ddBaE9d, balanceOf(address(this)) ); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol) pragma solidity ^0.8.0; import "./IERC20.sol"; import "./extensions/IERC20Metadata.sol"; import "../../utils/Context.sol"; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * The default value of {decimals} is 18. To change this, you should override * this function so it returns a different value. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20, IERC20Metadata { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * All two of these values are immutable: they can only be set once during * construction. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the default value returned by this function, unless * it's overridden. * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `to` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address to, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _transfer(owner, to, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on * `transferFrom`. This is semantically equivalent to an infinite approval. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _approve(owner, spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * NOTE: Does not update the allowance if the current allowance * is the maximum `uint256`. * * Requirements: * * - `from` and `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. * - the caller must have allowance for ``from``'s tokens of at least * `amount`. */ function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) { address spender = _msgSender(); _spendAllowance(from, spender, amount); _transfer(from, to, amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { address owner = _msgSender(); _approve(owner, spender, allowance(owner, spender) + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { address owner = _msgSender(); uint256 currentAllowance = allowance(owner, spender); require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); unchecked { _approve(owner, spender, currentAllowance - subtractedValue); } return true; } /** * @dev Moves `amount` of tokens from `from` to `to`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. */ function _transfer(address from, address to, uint256 amount) internal virtual { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(from, to, amount); uint256 fromBalance = _balances[from]; require(fromBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[from] = fromBalance - amount; // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by // decrementing then incrementing. _balances[to] += amount; } emit Transfer(from, to, amount); _afterTokenTransfer(from, to, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; unchecked { // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above. _balances[account] += amount; } emit Transfer(address(0), account, amount); _afterTokenTransfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; // Overflow not possible: amount <= accountBalance <= totalSupply. _totalSupply -= amount; } emit Transfer(account, address(0), amount); _afterTokenTransfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Updates `owner` s allowance for `spender` based on spent `amount`. * * Does not update the allowance amount in case of infinite allowance. * Revert if not enough allowance is available. * * Might emit an {Approval} event. */ function _spendAllowance(address owner, address spender, uint256 amount) internal virtual { uint256 currentAllowance = allowance(owner, spender); if (currentAllowance != type(uint256).max) { require(currentAllowance >= amount, "ERC20: insufficient allowance"); unchecked { _approve(owner, spender, currentAllowance - amount); } } } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ 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 amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` 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 amount) 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 `amount` 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 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` 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 amount) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 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 ERC721 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 ERC721 * 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 caller. * * 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); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../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. * * By default, the owner account will be the one that deploys the contract. 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; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @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 { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @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 { require(newOwner != address(0), "Ownable: new owner is the zero address"); _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); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return 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 up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev 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 { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 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 prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1, "Math: mulDiv overflow"); /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, 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. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. 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 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // 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 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice 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) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice 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 + (rounding == Rounding.Up && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2, rounded down, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @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 + (rounding == Rounding.Up && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10, rounded down, of a positive value. * 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 + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0); } } /** * @dev Return the log in base 256, rounded down, of a positive value. * 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 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @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 + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0); } } }
pragma solidity >=0.5.0; interface IUniswapV2Factory { event PairCreated(address indexed token0, address indexed token1, address pair, uint); function feeTo() external view returns (address); function feeToSetter() external view returns (address); function getPair(address tokenA, address tokenB) external view returns (address pair); function allPairs(uint) external view returns (address pair); function allPairsLength() external view returns (uint); function createPair(address tokenA, address tokenB) external returns (address pair); function setFeeTo(address) external; function setFeeToSetter(address) external; }
pragma solidity >=0.6.2; import './IUniswapV2Router01.sol'; interface IUniswapV2Router02 is IUniswapV2Router01 { function removeLiquidityETHSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns (uint amountETH); function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountETH); function swapExactTokensForTokensSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function swapExactETHForTokensSupportingFeeOnTransferTokens( uint amountOutMin, address[] calldata path, address to, uint deadline ) external payable; function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @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; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * 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[EIP 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); }
pragma solidity >=0.6.2; interface IUniswapV2Router01 { function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidity( address tokenA, address tokenB, uint amountADesired, uint amountBDesired, uint amountAMin, uint amountBMin, address to, uint deadline ) external returns (uint amountA, uint amountB, uint liquidity); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); function removeLiquidity( address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline ) external returns (uint amountA, uint amountB); function removeLiquidityETH( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns (uint amountToken, uint amountETH); function removeLiquidityWithPermit( address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountA, uint amountB); function removeLiquidityETHWithPermit( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountToken, uint amountETH); function swapExactTokensForTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external returns (uint[] memory amounts); function swapTokensForExactTokens( uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline ) external returns (uint[] memory amounts); function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts); function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts); function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts); function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts); function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB); function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut); function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn); function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts); function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts); }
{ "remappings": [ "ds-test/=lib/solmate/lib/ds-test/src/", "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/", "forge-std/=lib/forge-std/src/", "openzeppelin-contracts/=lib/openzeppelin-contracts/", "openzeppelin/=lib/openzeppelin-contracts/contracts/", "solmate/=lib/solmate/src/", "v2-core/=lib/v2-core/contracts/", "v2-periphery/=lib/v2-periphery/contracts/", "lib/forge-std:ds-test/=lib/forge-std/lib/ds-test/src/", "lib/openzeppelin-contracts:ds-test/=lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/src/", "lib/openzeppelin-contracts:erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/", "lib/openzeppelin-contracts:forge-std/=lib/openzeppelin-contracts/lib/forge-std/src/", "lib/openzeppelin-contracts:openzeppelin/=lib/openzeppelin-contracts/contracts/", "lib/solmate:ds-test/=lib/solmate/lib/ds-test/src/" ], "optimizer": { "enabled": true, "runs": 200 }, "metadata": { "useLiteralContent": false, "bytecodeHash": "ipfs", "appendCBOR": true }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "evmVersion": "paris", "libraries": {} }
Contract Security Audit
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[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"uint256","name":"_totalAllocation","type":"uint256"},{"internalType":"uint256","name":"_maxWalletBal","type":"uint256"},{"internalType":"uint256","name":"_liquidityAllocation","type":"uint256"},{"internalType":"uint256","name":"_presaleAllocation","type":"uint256"},{"internalType":"uint256","name":"_presaleMaxBuy","type":"uint256"},{"internalType":"uint256","name":"_presaleHardCap","type":"uint256"},{"internalType":"uint16","name":"_buyTax","type":"uint16"},{"internalType":"uint16","name":"_sellTax","type":"uint16"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AllocationOverflow","type":"error"},{"inputs":[],"name":"CapExceeded","type":"error"},{"inputs":[],"name":"InsufficientPayment","type":"error"},{"inputs":[],"name":"PresaleActive","type":"error"},{"inputs":[],"name":"PresaleFailed","type":"error"},{"inputs":[],"name":"PresaleHardCap","type":"error"},{"inputs":[],"name":"PresaleInactive","type":"error"},{"inputs":[],"name":"PresaleInvalidUnlockTime","type":"error"},{"inputs":[],"name":"PresaleMaxExceeded","type":"error"},{"inputs":[],"name":"PresaleOverflow","type":"error"},{"inputs":[{"internalType":"address","name":"_address","type":"address"}],"name":"ProtectedAddress","type":"error"},{"inputs":[],"name":"TaxOverflow","type":"error"},{"inputs":[],"name":"TransferFailed","type":"error"},{"inputs":[],"name":"TransfersLocked","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint16","name":"_buyTax","type":"uint16"}],"name":"BuyTaxChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_excluded","type":"address"},{"indexed":true,"internalType":"bool","name":"_status","type":"bool"}],"name":"CapExcluded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bool","name":"_status","type":"bool"}],"name":"LimitsToggled","type":"event"},{"anonymous":false,"inputs":[],"name":"LiquidityCreated","type":"event"},{"anonymous":false,"inputs":[],"name":"LiquidityLocked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"_maxWalletBal","type":"uint256"}],"name":"MaxWalletBalance","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[],"name":"PresaleAidropped","type":"event"},{"anonymous":false,"inputs":[],"name":"PresaleClosed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"_hardCap","type":"uint256"}],"name":"PresaleHardCapSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"_maxBuy","type":"uint256"}],"name":"PresaleMaxBuySet","type":"event"},{"anonymous":false,"inputs":[],"name":"PresaleOpened","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_sender","type":"address"},{"indexed":true,"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"PresalePayment","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint16","name":"_sellTax","type":"uint16"}],"name":"SellTaxChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_excluded","type":"address"},{"indexed":true,"internalType":"bool","name":"_status","type":"bool"}],"name":"TaxExcluded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bool","name":"_status","type":"bool"}],"name":"TaxesToggled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[],"name":"TransfersActivated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_uniswapV2Pair","type":"address"}],"name":"UniswapV2Pair","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"activateTransfers","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","t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nputs":[],"name":"sellTax","outputs":[{"internalType":"uint16","name":"","type":"uint16"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"_excluded","type":"address[]"},{"internalType":"bool","name":"_status","type":"bool"}],"name":"setCapExclusions","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"_excluded","type":"address[]"},{"internalType":"bool","name":"_status","type":"bool"}],"name":"setTaxExclusions","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"taxExclusions","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"taxesEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"teamFinanceLockID","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"toggleLimits","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"toggleTaxes","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"transfersActivated","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"uniswapV2Pair","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdrawETH","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdrawTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
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
-----Decoded View---------------
Arg [0] : _name (string): WENDEEZ
Arg [1] : _symbol (string): WENDEEZ
Arg [2] : _totalAllocation (uint256): 100000000000000000000000000
Arg [3] : _maxWalletBal (uint256): 350000000000000000000000
Arg [4] : _liquidityAllocation (uint256): 40000000000000000000000000
Arg [5] : _presaleAllocation (uint256): 33000000000000000000000000
Arg [6] : _presaleMaxBuy (uint256): 444000000000000000
Arg [7] : _presaleHardCap (uint256): 15000000000000000000
Arg [8] : _buyTax (uint16): 2000
Arg [9] : _sellTax (uint16): 1000
-----Encoded View---------------
14 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000140
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000180
Arg [2] : 00000000000000000000000000000000000000000052b7d2dcc80cd2e4000000
Arg [3] : 000000000000000000000000000000000000000000004a1d89bb94865ec00000
Arg [4] : 0000000000000000000000000000000000000000002116545850052128000000
Arg [5] : 0000000000000000000000000000000000000000001b4c0595a86aa1c1000000
Arg [6] : 000000000000000000000000000000000000000000000000062967a5c8460000
Arg [7] : 000000000000000000000000000000000000000000000000d02ab486cedc0000
Arg [8] : 00000000000000000000000000000000000000000000000000000000000007d0
Arg [9] : 00000000000000000000000000000000000000000000000000000000000003e8
Arg [10] : 0000000000000000000000000000000000000000000000000000000000000007
Arg [11] : 57454e4445455a00000000000000000000000000000000000000000000000000
Arg [12] : 0000000000000000000000000000000000000000000000000000000000000007
Arg [13] : 57454e4445455a00000000000000000000000000000000000000000000000000
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A token is a representation of an on-chain or off-chain asset. The token page shows information such as price, total supply, holders, transfers and social links. Learn more about this page in our Knowledge Base.