Contract Name:
SuperSonicToken
Contract Source Code:
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)
pragma solidity ^0.8.0;
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
// On the first call to nonReentrant, _status will be _NOT_ENTERED
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
}
function _nonReentrantAfter() private {
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
/**
* @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
* `nonReentrant` function in the call stack.
*/
function _reentrancyGuardEntered() internal view returns (bool) {
return _status == _ENTERED;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.0;
import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* The default value of {decimals} is 18. To change this, you should override
* this function so it returns a different value.
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
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;
/**
* @dev Sets the values for {name} and {symbol}.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the default value returned by this function, unless
* it's overridden.
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
* `transferFrom`. This is semantically equivalent to an infinite approval.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* NOTE: Does not update the allowance if the current allowance
* is the maximum `uint256`.
*
* Requirements:
*
* - `from` and `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
* - the caller must have allowance for ``from``'s tokens of at least
* `amount`.
*/
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;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
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;
}
/**
* @dev Moves `amount` of tokens from `from` to `to`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
*/
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;
// Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
// decrementing then incrementing.
_balances[to] += amount;
}
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
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 {
// Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
_balances[account] += amount;
}
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
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;
// Overflow not possible: amount <= accountBalance <= totalSupply.
_totalSupply -= amount;
}
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
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);
}
/**
* @dev Updates `owner` s allowance for `spender` based on spent `amount`.
*
* Does not update the allowance amount in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Might emit an {Approval} event.
*/
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);
}
}
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
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 amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` 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 amount) 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);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 amount) external returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
function _contextSuffixLength() internal view virtual returns (uint256) {
return 0;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/SafeMath.sol)
pragma solidity ^0.8.0;
// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.
/**
* @dev Wrappers over Solidity's arithmetic operations.
*
* NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
* now has built in overflow checking.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the subtraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator.
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {trySub}.
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
/**
* @dev Returns the integer division of two unsigned integers, reverting with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting with custom message when dividing by zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryMod}.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
pragma solidity >=0.6.2;
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
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 addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function removeLiquidity(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB);
function removeLiquidityETH(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountToken, uint amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountA, uint amountB);
function removeLiquidityETHWithPermit(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountToken, uint amountETH);
function swapExactTokensForTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapTokensForExactTokens(
uint amountOut,
uint amountInMax,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
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);
}
pragma solidity >=0.6.2;
import './IUniswapV2Router01.sol';
interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountETH);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
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 swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/utils/math/SafeMath.sol";
import "@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol";
import "@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol";
import "@uniswap/v2-core/contracts/interfaces/IUniswapV2Pair.sol";
contract SuperSonicToken is ERC20, Ownable, ReentrancyGuard {
using SafeMath for uint256;
// Token settings
uint256 public constant TOTAL_SUPPLY = 1_000_000_000 * 10**18; // 1 billion tokens
// Tax settings
uint256 public buyTax = 1000; // 10%
uint256 public sellTax = 1000; // 10%
uint256 public constant TAX_DENOMINATOR = 10000;
uint256 public constant REDISTRIBUTION_SHARE = 600; // 60% of tax (6% of total)
uint256 public constant SIP2EARN_TREASURY_SHARE = 200; // 20% of tax (2% of total)
uint256 public constant EVENT_TREASURY_SHARE = 200; // 20% of tax (2% of total)
// Treasury wallets
address public sip2EarnTreasuryWallet = 0xAFd3fa1980899aD8b24397C84d209E55E9B763DB;
address public eventTreasuryWallet = 0x200aC3f25eEC7bde11eCBF26D67a32d5F02255a4;
// DEX router for swapping tokens to native token
IUniswapV2Router02 public uniswapV2Router;
address public uniswapV2Pair;
// Redistribution settings
uint256 public minDistributionAmount = 0.1 ether; // Minimum native token to trigger distribution
uint256 public distributionInterval = 15 minutes;
uint256 public lastDistributionTime;
// Dividend tracking
uint256 public totalDividends;
uint256 public totalDividendsClaimed;
mapping(address => uint256) public shareholderIndexes;
mapping(address => uint256) public shareholderClaims;
mapping(address => uint256) public shareholderRewards;
address[] public shareholders;
// Trading control
bool public tradingEnabled = false;
mapping(address => bool) public isExcludedFromFees;
mapping(address => bool) public isExcludedFromDividends;
mapping(address => bool) public automatedMarketMakerPairs;
// Native token storage
uint256 public nativeTokenForRedistribution;
// Events
event SwapAndLiquify(uint256 tokensSwapped, uint256 nativeTokenReceived);
event DividendDistributed(address indexed holder, uint256 amount);
event ProcessedDividendTracker(
uint256 iterations,
uint256 claims,
uint256 lastProcessedIndex,
bool indexed automatic
);
event TradingEnabled();
event ExcludeFromFees(address indexed account, bool isExcluded);
event ExcludeFromDividends(address indexed account, bool isExcluded);
event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
constructor() ERC20("Super Sonic", "SS") {
// Exclude special addresses from fees
_excludeFromFees(owner(), true);
_excludeFromFees(address(this), true);
_excludeFromFees(sip2EarnTreasuryWallet, true);
_excludeFromFees(eventTreasuryWallet, true);
// Exclude special addresses from dividends
_excludeFromDividends(address(0), true);
_excludeFromDividends(address(this), true);
// Mint total supply to deployer
_mint(owner(), TOTAL_SUPPLY);
// Initialize distribution timer
lastDistributionTime = block.timestamp;
}
// Initialize DEX router and create pair
function initializeDEX(address routerAddress) external onlyOwner {
require(address(uniswapV2Router) == address(0), "DEX already initialized");
// Initialize router with provided address
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(routerAddress);
// Create a pair for this token
uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
// Set the pair as an automated market maker
_setAutomatedMarketMakerPair(uniswapV2Pair, true);
// Exclude pair from dividends
_excludeFromDividends(uniswapV2Pair, true);
}
// Receive native token
receive() external payable {}
// Override transfer function to apply taxes
function _transfer(
address from,
address to,
uint256 amount
) internal override {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
// Check if trading is enabled
if (!tradingEnabled) {
require(
isExcludedFromFees[from] || isExcludedFromFees[to],
"Trading is not enabled yet"
);
}
// Determine if it's a buy or sell
bool isBuy = automatedMarketMakerPairs[from];
bool isSell = automatedMarketMakerPairs[to];
// Calculate tax amount - fixed 10% for all transfers
uint256 taxAmount = 0;
if (!isExcludedFromFees[from] && !isExcludedFromFees[to]) {
taxAmount = amount.mul(buyTax).div(TAX_DENOMINATOR); // 10% tax
}
// Calculate transfer amount after tax
uint256 transferAmount = amount.sub(taxAmount);
// Transfer tokens
super._transfer(from, to, transferAmount);
// Process tax if applicable
if (taxAmount > 0) {
// Transfer tax to contract
super._transfer(from, address(this), taxAmount);
// Process tax distribution
_processTaxDistribution(taxAmount);
}
// Update dividend tracker
if (!isExcludedFromDividends[from]) {
_setShare(from);
}
if (!isExcludedFromDividends[to]) {
_setShare(to);
}
// Process dividend distribution if interval has passed
if (block.timestamp >= lastDistributionTime.add(distributionInterval)) {
_processDividendDistribution();
}
}
// Process tax distribution
function _processTaxDistribution(uint256 taxAmount) private {
// Calculate shares based on distribution percentages
uint256 redistributionAmount = taxAmount.mul(REDISTRIBUTION_SHARE).div(1000); // 60% for redistribution
uint256 sip2EarnAmount = taxAmount.mul(SIP2EARN_TREASURY_SHARE).div(1000); // 20% for Sip2Earn treasury
uint256 eventAmount = taxAmount.mul(EVENT_TREASURY_SHARE).div(1000); // 20% for event treasury
// Send treasury shares directly
super._transfer(address(this), sip2EarnTreasuryWallet, sip2EarnAmount);
super._transfer(address(this), eventTreasuryWallet, eventAmount);
// Swap redistribution tokens for native token if DEX is initialized
if (address(uniswapV2Router) != address(0) && redistributionAmount > 0) {
_swapTokensForNativeToken(redistributionAmount);
}
}
// Swap tokens for native token
function _swapTokensForNativeToken(uint256 tokenAmount) private {
// Generate the uniswap pair path of token -> WETH
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
// Approve token transfer to cover all possible scenarios
_approve(address(this), address(uniswapV2Router), tokenAmount);
// Make the swap
uint256 initialBalance = address(this).balance;
// Execute the swap
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // Accept any amount of native token
path,
address(this),
block.timestamp
);
// Calculate native token received
uint256 nativeTokenReceived = address(this).balance.sub(initialBalance);
// Add to redistribution balance
nativeTokenForRedistribution = nativeTokenForRedistribution.add(nativeTokenReceived);
emit SwapAndLiquify(tokenAmount, nativeTokenReceived);
}
// Process dividend distribution
function _processDividendDistribution() private {
// Update last distribution time
lastDistributionTime = block.timestamp;
// Check if there's enough native token to distribute
if (nativeTokenForRedistribution < minDistributionAmount || shareholders.length == 0) {
return;
}
// Calculate total tokens held by shareholders (excluding excluded addresses)
uint256 totalTokensHeld = 0;
for (uint256 i = 0; i < shareholders.length; i++) {
address shareholder = shareholders[i];
if (!isExcludedFromDividends[shareholder]) {
totalTokensHeld = totalTokensHeld.add(balanceOf(shareholder));
}
}
if (totalTokensHeld == 0) {
return;
}
// Save the total amount to distribute
uint256 totalToDistribute = nativeTokenForRedistribution;
// Set nativeTokenForRedistribution to 0 to prevent double distribution
nativeTokenForRedistribution = 0;
// Process all shareholders
for (uint256 i = 0; i < shareholders.length; i++) {
address shareholder = shareholders[i];
// Skip if excluded from dividends or has no balance
if (isExcludedFromDividends[shareholder] || balanceOf(shareholder) == 0) {
continue;
}
// Calculate shareholder's share based on token holdings
uint256 shareholderBalance = balanceOf(shareholder);
uint256 amount = totalToDistribute.mul(shareholderBalance).div(totalTokensHeld);
// Skip if amount is too small
if (amount == 0) {
continue;
}
// Update shareholder rewards
shareholderRewards[shareholder] = shareholderRewards[shareholder].add(amount);
// Update total dividends
totalDividends = totalDividends.add(amount);
// Send native token to shareholder
(bool success, ) = payable(shareholder).call{value: amount}("");
if (success) {
totalDividendsClaimed = totalDividendsClaimed.add(amount);
emit DividendDistributed(shareholder, amount);
} else {
// If transfer fails, add back to redistribution pool
nativeTokenForRedistribution = nativeTokenForRedistribution.add(amount);
}
}
// Count shareholders that received dividends
uint256 processedCount = 0;
for (uint256 i = 0; i < shareholders.length; i++) {
address shareholder = shareholders[i];
if (!isExcludedFromDividends[shareholder] && balanceOf(shareholder) > 0) {
processedCount++;
}
}
emit ProcessedDividendTracker(
processedCount,
processedCount,
shareholders.length,
true
);
}
// Distribute dividend to a single shareholder
function _distributeDividend(address shareholder) private {
// Skip if excluded from dividends
if (isExcludedFromDividends[shareholder]) {
return;
}
// Calculate shareholder's share
uint256 shareholderBalance = balanceOf(shareholder);
if (shareholderBalance == 0) {
return;
}
// Calculate total tokens held by shareholders (excluding excluded addresses)
uint256 totalTokensHeld = 0;
for (uint256 i = 0; i < shareholders.length; i++) {
address currentShareholder = shareholders[i];
if (!isExcludedFromDividends[currentShareholder]) {
totalTokensHeld = totalTokensHeld.add(balanceOf(currentShareholder));
}
}
if (totalTokensHeld == 0) {
return;
}
// Calculate shareholder's share based on token holdings
uint256 amount = nativeTokenForRedistribution.mul(shareholderBalance).div(totalTokensHeld);
// Skip if amount is too small
if (amount == 0) {
return;
}
// Update native token for redistribution
nativeTokenForRedistribution = nativeTokenForRedistribution.sub(amount);
// Update shareholder rewards
shareholderRewards[shareholder] = shareholderRewards[shareholder].add(amount);
// Update total dividends
totalDividends = totalDividends.add(amount);
// Send native token to shareholder
(bool success, ) = payable(shareholder).call{value: amount}("");
if (success) {
totalDividendsClaimed = totalDividendsClaimed.add(amount);
emit DividendDistributed(shareholder, amount);
} else {
// If transfer fails, add back to redistribution pool
nativeTokenForRedistribution = nativeTokenForRedistribution.add(amount);
}
}
// Set shareholder in dividend tracker
function _setShare(address shareholder) private {
// Skip if excluded from dividends
if (isExcludedFromDividends[shareholder]) {
return;
}
// Check if shareholder already exists
if (shareholderIndexes[shareholder] == 0) {
// Add new shareholder
shareholderIndexes[shareholder] = shareholders.length;
shareholders.push(shareholder);
}
}
// Remove shareholder from dividend tracker
function _removeShare(address shareholder) private {
// Skip if not a shareholder
if (shareholderIndexes[shareholder] == 0) {
return;
}
// Get shareholder index
uint256 index = shareholderIndexes[shareholder];
// Check if valid index
if (index >= shareholders.length) {
return;
}
// Remove shareholder
shareholders[index] = shareholders[shareholders.length - 1];
shareholderIndexes[shareholders[index]] = index;
shareholders.pop();
delete shareholderIndexes[shareholder];
}
// Check if transaction is a sell
function isSellTax(address sender) internal view returns (bool) {
return automatedMarketMakerPairs[sender];
}
// Manually trigger dividend distribution
function processDividendDistribution() external onlyOwner {
_processDividendDistribution();
}
// Manually claim dividends
function claimDividends() external nonReentrant {
_distributeDividend(msg.sender);
}
// Enable trading
function enableTrading() external onlyOwner {
require(!tradingEnabled, "Trading already enabled");
tradingEnabled = true;
emit TradingEnabled();
}
// Exclude account from fees
function excludeFromFees(address account, bool excluded) external onlyOwner {
_excludeFromFees(account, excluded);
}
// Internal function to exclude account from fees
function _excludeFromFees(address account, bool excluded) private {
isExcludedFromFees[account] = excluded;
emit ExcludeFromFees(account, excluded);
}
// Exclude account from dividends
function excludeFromDividends(address account, bool excluded) external onlyOwner {
_excludeFromDividends(account, excluded);
}
// Internal function to exclude account from dividends
function _excludeFromDividends(address account, bool excluded) private {
isExcludedFromDividends[account] = excluded;
if (excluded) {
_removeShare(account);
} else {
_setShare(account);
}
emit ExcludeFromDividends(account, excluded);
}
// Set automated market maker pair
function setAutomatedMarketMakerPair(address pair, bool value) external onlyOwner {
_setAutomatedMarketMakerPair(pair, value);
}
// Internal function to set automated market maker pair
function _setAutomatedMarketMakerPair(address pair, bool value) private {
automatedMarketMakerPairs[pair] = value;
if (value) {
_excludeFromDividends(pair, true);
}
emit SetAutomatedMarketMakerPair(pair, value);
}
// Update Sip2Earn treasury wallet
function updateSip2EarnTreasuryWallet(address newWallet) external onlyOwner {
require(newWallet != address(0), "Cannot set treasury to zero address");
sip2EarnTreasuryWallet = newWallet;
_excludeFromFees(sip2EarnTreasuryWallet, true);
}
// Update Event treasury wallet
function updateEventTreasuryWallet(address newWallet) external onlyOwner {
require(newWallet != address(0), "Cannot set treasury to zero address");
eventTreasuryWallet = newWallet;
_excludeFromFees(eventTreasuryWallet, true);
}
// Update distribution interval
function updateDistributionInterval(uint256 newInterval) external onlyOwner {
require(newInterval > 0, "Interval must be greater than 0");
distributionInterval = newInterval;
}
// Update minimum distribution amount
function updateMinDistributionAmount(uint256 newAmount) external onlyOwner {
minDistributionAmount = newAmount;
}
// Update tax rates
function updateTaxRates(uint256 newBuyTax, uint256 newSellTax) external onlyOwner {
require(newBuyTax <= 2000, "Buy tax cannot exceed 20%");
require(newSellTax <= 2000, "Sell tax cannot exceed 20%");
buyTax = newBuyTax;
sellTax = newSellTax;
}
// Emergency withdraw native token
function emergencyWithdrawNativeToken() external onlyOwner {
uint256 balance = address(this).balance;
(bool success, ) = payable(owner()).call{value: balance}("");
require(success, "Failed to withdraw native token");
}
// Emergency withdraw tokens
function emergencyWithdrawTokens(address token, uint256 amount) external onlyOwner {
if (token == address(this)) {
super._transfer(address(this), owner(), amount);
} else {
IERC20(token).transfer(owner(), amount);
}
}
// Get shareholder count
function getShareholderCount() external view returns (uint256) {
return shareholders.length;
}
// Get shareholder at index
function getShareholderAtIndex(uint256 index) external view returns (address) {
require(index < shareholders.length, "Index out of bounds");
return shareholders[index];
}
// Get shareholder rewards
function getShareholderRewards(address shareholder) external view returns (uint256) {
return shareholderRewards[shareholder];
}
// For testing only - to be removed before mainnet launch
function testAddNativeTokenForRedistribution() external payable onlyOwner {
nativeTokenForRedistribution = nativeTokenForRedistribution.add(msg.value);
}
}