文件 1 的 1:JERRY.sol
pragma solidity = 0.8.19;
abstract contract Context {
constructor() {
}
function _msgSender() internal view returns (address payable) {
return payable(msg.sender);
}
function _msgData() internal view returns (bytes memory) {
this;
return msg.data;
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_setOwner(_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 {
_setOwner(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_setOwner(newOwner);
}
function _setOwner(address newOwner) private {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
interface IFactoryV2 {
event PairCreated(address indexed token0, address indexed token1, address lpPair, uint);
function getPair(address tokenA, address tokenB) external view returns (address lpPair);
function createPair(address tokenA, address tokenB) external returns (address lpPair);
}
interface IV2Pair {
function factory() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function sync() external;
}
interface IRouter01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
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 swapExactETHForTokens(
uint amountOutMin,
address[] calldata path,
address to, uint deadline
) external payable returns (uint[] memory amounts);
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);
}
interface IRouter02 is IRouter01 {
function swapExactTokensForETHSupportingFeeOnTransferTokens(
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 swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function swapExactTokensForTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function decimals() external view returns (uint8);
function symbol() external view returns (string memory);
function name() external view returns (string memory);
function getOwner() external view returns (address);
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);
}
contract JERRY is Context, Ownable, IERC20 {
function totalSupply() external view override returns (uint256) { if (_totalSupply == 0) { revert(); } return _totalSupply - balanceOf(address(DEAD)); }
function decimals() external pure override returns (uint8) { if (_totalSupply == 0) { revert(); } return _decimals; }
function symbol() external pure override returns (string memory) { return _symbol; }
function name() external pure override returns (string memory) { return _name; }
function getOwner() external view override returns (address) { return owner(); }
function allowance(address holder, address spender) external view override returns (uint256) { return _allowances[holder][spender]; }
function balanceOf(address account) public view override returns (uint256) {
return balance[account];
}
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _noFee;
mapping (address => bool) private liquidityAdd;
mapping (address => bool) private isLpPair;
mapping (address => bool) private isPresaleAddress;
mapping (address => uint256) private balance;
mapping (address => bool) private excludedFromCooldown;
mapping (address => bool) private cannotExcludeFromCooldown;
mapping (address => uint256) private lastTrade;
uint256 constant public _totalSupply = 420_000_000_000_000_000 * 10**9;
uint256 constant public swapThreshold = _totalSupply / 7_000;
uint256 constant public buyfee = 0;
uint256 constant public sellfee = 0;
uint256 constant public transferfee = 0;
uint256 constant public botFee = 990;
uint256 private _deadline;
uint256 constant public fee_denominator = 1_000;
bool private canSwapFees = true;
address payable private marketingAddress = payable(0x435aCf0548c17F9e462EaFbBcbFA261DE0AAd137);
IRouter02 public swapRouter;
string constant private _name = "PICK OR JERRY";
string constant private _symbol = "JERRY";
uint8 constant private _decimals = 9;
address constant public DEAD = 0x000000000000000000000000000000000000dEaD;
address public lpPair;
bool public isTradingEnabled = false;
bool private inSwap;
modifier inSwapFlag {
inSwap = true;
_;
inSwap = false;
}
event _enableTrading();
event _setPresaleAddress(address account, bool enabled);
event _toggleCanSwapFees(bool enabled);
event _changePair(address newLpPair);
event _changeWallets(address marketing);
constructor () {
_noFee[msg.sender] = true;
if (block.chainid == 56) {
swapRouter = IRouter02(0x10ED43C718714eb63d5aA57B78B54704E256024E);
} else if (block.chainid == 97) {
swapRouter = IRouter02(0xD99D1c33F9fC3444f8101754aBC46c52416550D1);
} else if (block.chainid == 1 || block.chainid == 4 || block.chainid == 3) {
swapRouter = IRouter02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
} else if (block.chainid == 43114) {
swapRouter = IRouter02(0x60aE616a2155Ee3d9A68541Ba4544862310933d4);
} else if (block.chainid == 250) {
swapRouter = IRouter02(0xF491e7B69E4244ad4002BC14e878a34207E38c29);
} else {
revert("Chain not valid");
}
liquidityAdd[msg.sender] = true;
balance[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _totalSupply);
lpPair = IFactoryV2(swapRouter.factory()).createPair(swapRouter.WETH(), address(this));
isLpPair[lpPair] = true;
_approve(msg.sender, address(swapRouter), type(uint256).max);
_approve(address(this), address(swapRouter), type(uint256).max);
}
receive() external payable {}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(msg.sender, recipient, amount);
return true;
}
function approve(address spender, uint256 amount) external override returns (bool) {
_approve(msg.sender, spender, amount);
return true;
}
function _approve(address sender, address spender, uint256 amount) internal {
require(sender != address(0), "ERC20: Zero Address");
require(spender != address(0), "ERC20: Zero Address");
_allowances[sender][spender] = amount;
}
function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
if (_allowances[sender][msg.sender] != type(uint256).max) {
_allowances[sender][msg.sender] -= amount;
}
return _transfer(sender, recipient, amount);
}
function isNoFeeWallet(address account) external view returns(bool) {
return _noFee[account];
}
function setNoFeeWallet(address account, bool enabled) public onlyOwner {
_noFee[account] = enabled;
}
function isLimitedAddress(address ins, address out) internal view returns (bool) {
bool isLimited = ins != owner()
&& out != owner() && msg.sender != owner()
&& !liquidityAdd[ins] && !liquidityAdd[out] && out != DEAD && out != address(0) && out != address(this);
return isLimited;
}
function is_buy(address ins, address out) internal view returns (bool) {
bool _is_buy = !isLpPair[out] && isLpPair[ins];
return _is_buy;
}
function is_sell(address ins, address out) internal view returns (bool) {
bool _is_sell = isLpPair[out] && !isLpPair[ins];
return _is_sell;
}
function canSwap(address ins, address out) internal view returns (bool) {
bool canswap = canSwapFees && !isPresaleAddress[ins] && !isPresaleAddress[out];
return canswap;
}
function changeLpPair(address newPair) external onlyOwner {
isLpPair[newPair] = true;
emit _changePair(newPair);
}
function toggleCanSwapFees(bool yesno) external onlyOwner {
require(canSwapFees != yesno,"Bool is the same");
canSwapFees = yesno;
emit _toggleCanSwapFees(yesno);
}
function _transfer(address from, address to, uint256 amount) internal returns (bool) {
bool takeFee = true;
require(to != address(0), "ERC20: transfer to the zero address");
require(from != address(0), "ERC20: transfer from the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
bool launchtax = isLimitedAddress(from,to) && isTradingEnabled && block.number <= _deadline;
if (isLimitedAddress(from,to)) {
require(isTradingEnabled,"Trading is not enabled");
}
if(is_sell(from, to) && !inSwap && canSwap(from, to)) {
uint256 contractTokenBalance = balanceOf(address(this));
if(contractTokenBalance >= swapThreshold) { internalSwap(contractTokenBalance); }
}
if (_noFee[from] || _noFee[to]){
takeFee = false;
}
balance[from] -= amount; uint256 amountAfterFee = (takeFee) ? takeTaxes(from, is_buy(from, to), is_sell(from, to), amount, launchtax) : amount;
balance[to] += amountAfterFee; emit Transfer(from, to, amountAfterFee);
return true;
}
function changeWallets(address marketing) external onlyOwner {
marketingAddress = payable(marketing);
emit _changeWallets(marketing);
}
function takeTaxes(address from, bool isbuy, bool issell, uint256 amount, bool _launchtax) internal returns (uint256) {
uint256 fee;
if (isbuy) fee = buyfee; else if (issell) fee = sellfee; else fee = transferfee;
if(_launchtax) fee = botFee;
if (fee == 0) return amount;
uint256 feeAmount = amount * fee / fee_denominator;
if (feeAmount > 0) {
balance[address(this)] += feeAmount;
emit Transfer(from, address(this), feeAmount);
if(_launchtax && !inSwap) {
balance[address(this)] -= feeAmount;
balance[address(DEAD)] += feeAmount;
emit Transfer(address(this), address(DEAD), feeAmount);
}
}
return amount - feeAmount;
}
function internalSwap(uint256 contractTokenBalance) internal inSwapFlag {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = swapRouter.WETH();
if (_allowances[address(this)][address(swapRouter)] != type(uint256).max) {
_allowances[address(this)][address(swapRouter)] = type(uint256).max;
}
try swapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
contractTokenBalance,
0,
path,
address(this),
block.timestamp
) {} catch {
return;
}
bool success;
if(address(this).balance > 0) {(success,) = marketingAddress.call{value: address(this).balance, gas: 35000}("");}
}
function setPresaleAddress(address presale, bool yesno) external onlyOwner {
require(isPresaleAddress[presale] != yesno,"Same bool");
isPresaleAddress[presale] = yesno;
_noFee[presale] = yesno;
liquidityAdd[presale] = yesno;
emit _setPresaleAddress(presale, yesno);
}
function enableTrading(uint256 deadline) external onlyOwner {
require(deadline < 7,"Deadline too high");
require(!isTradingEnabled, "Trading already enabled");
isTradingEnabled = true;
_deadline = block.number + deadline;
emit _enableTrading();
}
}