编译器
0.8.10+commit.fc410830
文件 1 的 6: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 6:ERC20.sol
pragma solidity ^0.8.0;
import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";
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 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;
_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 6: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 4 的 6: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 5 的 6: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);
}
}
文件 6 的 6:VOCARE.sol
pragma solidity 0.8.10;
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
interface IDEXFactory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IDEXRouter {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function swapExactTokensForETHSupportingFeeOnTransferTokens(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external;
}
contract VOCARE is ERC20, Ownable {
address private growthWallet;
address private pair;
uint256 public growthBuyFee;
uint256 public growthSellFee;
uint256 public swapThreshold;
uint256 public tokenLimitPerWallet;
bool private swapping;
IDEXRouter public router;
mapping(address => bool) public isWalletTaxFree;
mapping(address => bool) public isLiquidityPair;
mapping(address => bool) public isWalletExemptFromLimit;
event BuyFeeUpdated(uint256 newFee);
event SellFeeUpdated(uint256 newFee);
event WalletExemptFromTokenLimit(address wallet, bool value);
event SwapingThresholdUpdated(uint256 amount);
event TokenPerWalletLimitUpdated(uint256 amount);
event NewLiquidityPairUpdated(address pair, bool value);
event WalletExemptFromFee(address wallet, bool value);
event GrowthWalletUpdated(address wallet);
constructor(address owner_, address growth_) ERC20("Vocare ex Machina", "VOCARE") {
require(owner_ != address(0), "Zero address");
require(growth_ != address(0), "Zero address");
router = IDEXRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
pair = IDEXFactory(router.factory()).createPair(address(this), router.WETH());
growthWallet = address(growth_);
growthBuyFee = 500;
growthSellFee = 500;
isLiquidityPair[address(pair)] = true;
isWalletTaxFree[address(this)] = true;
isWalletTaxFree[address(owner_)] = true;
isWalletTaxFree[address(growthWallet)] = true;
isWalletExemptFromLimit[address(this)] = true;
isWalletExemptFromLimit[address(owner_)] = true;
isWalletExemptFromLimit[address(growthWallet)] = true;
isWalletExemptFromLimit[address(pair)] = true;
swapThreshold = 10000 * (10**18);
tokenLimitPerWallet = 200000 * (10**18);
_mint(address(owner_), 10000000 * (10**18));
_transferOwnership(address(owner_));
}
receive() external payable {}
function updateSellFee(uint256 newSellFee) external onlyOwner {
require(newSellFee <= 8000 , "Max fee limit reached for 'Sell'");
growthSellFee = newSellFee;
emit SellFeeUpdated(newSellFee);
}
function updateBuyFee(uint256 newBuyFee) external onlyOwner {
require(newBuyFee <= 8000 , "Max fee limit reached for 'Buy'");
growthBuyFee = newBuyFee;
emit BuyFeeUpdated(newBuyFee);
}
function exemptWalletFromTokenLimit(address wallet, bool status) external onlyOwner {
require(wallet != address(0), "Zero address");
require(isWalletExemptFromLimit[wallet] != status, "Wallet is already the value of 'status'");
isWalletExemptFromLimit[wallet] = status;
emit WalletExemptFromTokenLimit(wallet, status);
}
function exemptWalletFromFee(address wallet, bool status) external onlyOwner{
require(wallet != address(0), "Zero address");
require(isWalletTaxFree[wallet] != status, "Wallet is already the value of 'status'");
isWalletTaxFree[wallet] = status;
emit WalletExemptFromFee(wallet, status);
}
function updateSwapingThreshold(uint256 amount) external onlyOwner {
require(amount <= totalSupply(), "Amount cannot be over the total supply.");
require(amount >= (100 * 10**18), "Amount cannot be less than `100` token.");
swapThreshold = amount;
emit SwapingThresholdUpdated(amount);
}
function updateLiquidityPair(address newPair, bool value) external onlyOwner {
require(newPair != address(0), "Zero address");
require(isLiquidityPair[newPair] != value, "Pair is already the value of 'value'");
isLiquidityPair[newPair] = value;
emit NewLiquidityPairUpdated(newPair, value);
}
function updateTokenLimitPerWallet(uint256 amount) external onlyOwner {
require(amount <= totalSupply(), "Amount cannot be over the total supply.");
require(amount >= 100 * (10**18), "Minimum `100` token per wallet required");
tokenLimitPerWallet = amount;
emit TokenPerWalletLimitUpdated(amount);
}
function updateGrowthWallet(address newWallet) external onlyOwner{
require(address(newWallet) != address(0), "Zero address");
growthWallet = address(newWallet);
emit GrowthWalletUpdated(address(newWallet));
}
function _transfer(address sender, address recipient, uint256 amount) internal override(ERC20) {
require(sender != address(0), "transfer from the zero address");
require(recipient != address(0), "transfer to the zero address");
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= swapThreshold;
if(!swapping && canSwap && isLiquidityPair[recipient])
{
swapping = true;
swapTokensForETH(swapThreshold);
uint256 ethBalance = address(this).balance;
payable(growthWallet).transfer(ethBalance);
swapping = false;
}
if(isWalletTaxFree[sender] || isWalletTaxFree[recipient])
{
super._transfer(sender, recipient, amount);
}
else
{
uint256 fees;
if(isLiquidityPair[recipient])
{
fees = ((amount * growthSellFee) / 10000);
}
else if(isLiquidityPair[sender] && recipient != address(router))
{
fees = ((amount * growthBuyFee) / 10000);
}
if(!isWalletExemptFromLimit[recipient])
{
require(((balanceOf(recipient) + amount) - fees) <= tokenLimitPerWallet, "Transfer amount exceeds the `tokenLimitPerWallet`.");
}
if(fees > 0)
{
super._transfer(sender, address(this), fees);
}
super._transfer(sender, recipient, amount - fees);
}
}
function swapTokensForETH(uint256 amount) private {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = router.WETH();
_approve(address(this), address(router), amount);
router.swapExactTokensForETHSupportingFeeOnTransferTokens(
amount,
0,
path,
address(this),
block.timestamp
);
}
}
{
"compilationTarget": {
"contracts/VOCARE.sol": "VOCARE"
},
"evmVersion": "london",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}
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