编译器
0.8.21+commit.d9974bed
文件 1 的 8:Context.sol
pragma solidity ^0.8.0;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
文件 2 的 8:ERC20.sol
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import "@openzeppelin/contracts/utils/Context.sol";
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) internal _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 internal _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 to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, 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) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
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;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
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;
}
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;
_balances[to] += amount;
}
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, 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;
unchecked {
_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 _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);
}
}
}
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}
function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
}
文件 3 的 8:IDEXFactory.sol
pragma solidity ^0.8.13;
interface IDEXFactory {
function createPair(address tokenA, address tokenB) external returns (address pair);
function getPair(address tokenA, address tokenB) external view returns (address pair);
}
文件 4 的 8:IDEXRouter.sol
pragma solidity ^0.8.13;
interface IDEXRouter {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint256 amountADesired,
uint256 amountBDesired,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
)
external
returns (
uint256 amountA,
uint256 amountB,
uint256 liquidity
);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function removeLiquidity(
address tokenA,
address tokenB,
uint256 liquidity,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
) external returns (uint256 amountA, uint256 amountB);
function swapExactTokensForTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapTokensForExactTokens(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function getAmountsOut(uint256 amountIn, address[] calldata path) external view returns (uint256[] memory amounts);
}
文件 5 的 8:IERC20.sol
pragma solidity ^0.8.0;
interface IERC20 {
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address to, 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 from,
address to,
uint256 amount
) external returns (bool);
}
文件 6 的 8:IERC20Metadata.sol
pragma solidity ^0.8.0;
import "../IERC20.sol";
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
文件 7 的 8:LOEM.sol
pragma solidity 0.8.21;
import "./ERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "./interfaces/IDEXFactory.sol";
import "./interfaces/IDEXRouter.sol";
contract LOEM is ERC20, Ownable {
mapping (address => bool) public isExcludedFromFee;
address payable public treasuryAddress;
uint256 public feePercent;
uint256 public collectedTaxThreshold;
uint256 public maxWalletSize;
address public uniswapV2Pair;
bool public autoTaxDistributionEnabled = true;
bool private inInternalSwap;
IDEXRouter public uniswapV2Router = IDEXRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
modifier lockTheSwap {
inInternalSwap = true;
_;
inInternalSwap = false;
}
constructor(address payable _treasuryAddress, uint256 _feePercent) ERC20("LOEM", "LOEM") {
treasuryAddress = _treasuryAddress;
feePercent = _feePercent;
isExcludedFromFee[owner()] = true;
isExcludedFromFee[address(this)] = true;
isExcludedFromFee[_treasuryAddress] = true;
_mint(msg.sender, 100_000_000 * 10 ** decimals());
collectedTaxThreshold = _totalSupply / 1000;
maxWalletSize = _totalSupply / 50;
uniswapV2Pair = IDEXFactory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
}
function _transfer(address from, address to, uint256 amount) internal override(ERC20) {
require(from != address(0), "ERC20: transfer from invalid");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
uint256 taxAmount = 0;
address _uniswapV2Pair = uniswapV2Pair;
if (!isExcludedFromFee[from] && !isExcludedFromFee[to]) {
bool _isTransfer = from != _uniswapV2Pair && to != _uniswapV2Pair;
if (!inInternalSwap && !_isTransfer) {
uint256 _collectedTaxThreshold = collectedTaxThreshold;
taxAmount = amount * feePercent / 100;
if (from != _uniswapV2Pair && autoTaxDistributionEnabled && balanceOf(address(this)) > _collectedTaxThreshold) {
_distributeTaxes(_collectedTaxThreshold);
}
}
if (to != _uniswapV2Pair && to != address(uniswapV2Router)) {
require(balanceOf(to) + amount - taxAmount <= maxWalletSize, "Exceeds the maxWalletSize");
}
}
_balances[from]= _balances[from] - amount;
_balances[to]= _balances[to] + amount - taxAmount;
emit Transfer(from, to, amount - taxAmount);
if (taxAmount > 0) {
_balances[address(this)]=_balances[address(this)] + taxAmount;
emit Transfer(from, address(this), taxAmount);
}
}
function _swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
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
);
}
function setAutoTaxDistributionEnabled(bool _enabled) external onlyOwner {
autoTaxDistributionEnabled = _enabled;
}
function setFee(uint256 _feePercent) external onlyOwner {
require(_feePercent <= 10 || _feePercent < feePercent, "INVALID_FEE");
feePercent = _feePercent;
}
function setMaxWalletSize(uint256 _maxWalletSize) external onlyOwner {
maxWalletSize = _maxWalletSize;
}
function setTaxThreshold(uint256 _newThreshold) external onlyOwner {
collectedTaxThreshold = _newThreshold;
}
function setExcludeFromFee(address _address, bool _excluded) external onlyOwner {
isExcludedFromFee[_address] = _excluded;
}
function setTreasuryAddress(address payable _treasuryAddress) external onlyOwner {
treasuryAddress = _treasuryAddress;
isExcludedFromFee[_treasuryAddress] = true;
}
function distributeTaxes(uint256 amount) external onlyOwner {
_distributeTaxes(amount);
}
function _distributeTaxes(uint256 amount) internal {
_swapTokensForEth(amount);
uint256 contractETHBalance = address(this).balance;
if (contractETHBalance > 0) {
(bool sent, ) = treasuryAddress.call{value: contractETHBalance}("");
require(sent, "Failed to send Eth");
}
}
function withdrawERC20(IERC20 token) external onlyOwner {
uint256 balance = token.balanceOf(address(this));
bool sent = token.transfer(msg.sender, balance);
require(sent, "Failed to send token");
}
receive() external payable {}
}
文件 8 的 8:Ownable.sol
pragma solidity ^0.8.0;
import "../utils/Context.sol";
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_transferOwnership(_msgSender());
}
modifier onlyOwner() {
_checkOwner();
_;
}
function owner() public view virtual returns (address) {
return _owner;
}
function _checkOwner() internal view virtual {
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);
}
}
{
"compilationTarget": {
"contracts/LOEM.sol": "LOEM"
},
"evmVersion": "istanbul",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}
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