Address Contract Verified
Address
0xb9A091213246Ee02c8BFF4e86D84b0C3536d0631
Balance
0 ETH
Nonce
1
Code Size
7385 bytes
Creator
0xED608C51...3693 at tx 0x580dc2cd...9f419f
Indexed Transactions
0
Contract Bytecode
7385 bytes
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Verified Source Code Full Match
Compiler: v0.8.30+commit.73712a01
EVM: prague
Optimization: No
weewux.sol 272 lines
// SPDX-License-Identifier:MIT
pragma solidity ^0.8.30;
/**
* @dev Interface of the ERC-20 standard as defined in the ERC.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the value of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the value of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves a `value` amount of tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 value) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 value) external returns (bool);
function transferFrom(address from, address to, uint256 value) external returns (bool);
}
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(address initialOwner) {
require(initialOwner != address(0), "Ownable: Invalid owner address");
_owner = initialOwner;
emit OwnershipTransferred(address(0), initialOwner);
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function owner() public view returns (address) {
return _owner;
}
function transferOwnership(address newOwner) public onlyOwner {
require(newOwner != address(0), "Ownable: Invalid owner address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
function renounceOwnership() public onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
}
contract Weewux is Context, IERC20, Ownable {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) public whitelist;
string private _name = "Weewux";
string private _symbol = "OMIX";
uint8 private _decimals = 18;
uint256 private _totalSupply = 1_000_000_000 * 1e18; // Max Total Supply
bool public trading; // once this is enabled, it cannot be disabled.
event WhitelistUpdated(address indexed user, bool status);
constructor(address initialOwner) Ownable(initialOwner) {
whitelist[msg.sender] = true;
_balances[owner()] = _totalSupply;
emit Transfer(address(0), owner(), _totalSupply);
}
function name() public view returns (string memory) {
return _name;
}
function symbol() public view returns (string memory) {
return _symbol;
}
function decimals() public view returns (uint8) {
return _decimals;
}
function totalSupply() public view override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function transfer(
address recipient,
uint256 amount
) public override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(
address owner,
address spender
) public view override returns (uint256) {
return _allowances[owner][spender];
}
function approve(
address spender,
uint256 amount
) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(
sender,
_msgSender(),
_allowances[sender][_msgSender()] - amount
);
return true;
}
function increaseAllowance(
address spender,
uint256 addedValue
) public returns (bool) {
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender] + addedValue
);
return true;
}
function decreaseAllowance(
address spender,
uint256 subtractedValue
) public returns (bool) {
require(
_allowances[_msgSender()][spender] >= subtractedValue,
"Weewux: decreased allowance below zero"
);
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender] - subtractedValue
);
return true;
}
function enableTrading() external onlyOwner {
require(!trading, "Weewux: Trading is already enabled");
trading = true;
}
/**
* @dev Allows the owner to add or remove an address from the whitelist.
* The whitelist is used to exempt certain addresses from trading restrictions.
*
* Important Notes:
* - Once trading is enabled, it cannot be disabled again.
* - After trading is enabled, the whitelist will no longer affect transfer behavior.
*
* @param _user The address to be added to or removed from the whitelist.
* @param _status A boolean indicating whether the address should be added (`true`) or removed (`false`) from the whitelist.
*/
function setWhitelist(address _user, bool _status) external onlyOwner {
whitelist[_user] = _status;
emit WhitelistUpdated(_user, _status);
}
function _approve(address owner, address spender, uint256 amount) private {
require(owner != address(0), "Weewux: Approve from zero address");
require(spender != address(0), "Weewux: Approve to zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Internal function to handle the transfer of tokens between two addresses.
* This function is private and is called internally by other public functions like `transfer` and `transferFrom`.
*
* The function ensures:
* - Neither the sender (`from`) nor the recipient (`to`) is the zero address.
* - The transfer amount is greater than zero.
* - Trading is enabled for non-whitelisted addresses.
* - The sender has a sufficient balance to complete the transfer.
*
* @param from The address sending the tokens.
* @param to The address receiving the tokens.
* @param amount The number of tokens to transfer.
*/
function _transfer(address from, address to, uint256 amount) private {
require(from != address(0), "Weewux: Transfer from zero address");
require(to != address(0), "Weewux: Transfer to zero address");
require(amount > 0, "Weewux: Transfer amount must be greater than zero");
if (!whitelist[from] && !whitelist[to]) {
require(trading, "Weewux: Trading is disabled");
}
uint256 senderBalance = _balances[from];
require(senderBalance >= amount, "Weewux: Insufficient balance");
_balances[from] -= amount;
_balances[to] += amount;
emit Transfer(from, to, amount);
}
}
Read Contract
allowance 0xdd62ed3e → uint256
balanceOf 0x70a08231 → uint256
decimals 0x313ce567 → uint8
name 0x06fdde03 → string
owner 0x8da5cb5b → address
symbol 0x95d89b41 → string
totalSupply 0x18160ddd → uint256
trading 0xec44acf2 → bool
whitelist 0x9b19251a → bool
Write Contract 9 functions
These functions modify contract state and require a wallet transaction to execute.
approve 0x095ea7b3
address spender
uint256 amount
returns: bool
decreaseAllowance 0xa457c2d7
address spender
uint256 subtractedValue
returns: bool
enableTrading 0x8a8c523c
No parameters
increaseAllowance 0x39509351
address spender
uint256 addedValue
returns: bool
renounceOwnership 0x715018a6
No parameters
setWhitelist 0x53d6fd59
address _user
bool _status
transfer 0xa9059cbb
address recipient
uint256 amount
returns: bool
transferFrom 0x23b872dd
address sender
address recipient
uint256 amount
returns: bool
transferOwnership 0xf2fde38b
address newOwner
Recent Transactions
No transactions found for this address