Contract Name:
MarshelleInu
Contract Source Code:
File 1 of 1 : MarshelleInu
//SPDX-License-Identifier: MIT
// File: contracts/MarshelleErrors.sol
pragma solidity ^0.8.17;
error InvalidSwapTokenAmount(
string errorMsg
);
error InvalidMaxTradeAmount(
string errorMsg
);
error InvalidMaxWalletAmount(
string errorMsg
);
error InvalidTotalFees(
string errorMsg
);
error InvalidAutomatedMarketMakerPair(
address pair,
string errorMsg
);
error TransferFromZeroAddress(
address from,
address to
);
error TransferError(string errorMsg);
error InvalidAntibot(string errorMsg);
error InvalidMultiBuy(string errorMsg);
error TradingNotActive(string errorMsg);
error MaxWalletExceeded(string errorMsg);
error MaxTransactionExceeded(string errorMsg);
// File: contracts/IterableMapping.sol
pragma solidity ^0.8.17;
library IterableMapping {
// Iterable mapping from address to uint;
struct Map {
address[] keys;
mapping(address => uint) values;
mapping(address => uint) indexOf;
mapping(address => bool) inserted;
}
function get(Map storage map, address key) internal view returns (uint) {
return map.values[key];
}
function getIndexOfKey(Map storage map, address key) internal view returns (int) {
if(!map.inserted[key]) {
return -1;
}
return int(map.indexOf[key]);
}
function getKeyAtIndex(Map storage map, uint index) internal view returns (address) {
return map.keys[index];
}
function size(Map storage map) internal view returns (uint) {
return map.keys.length;
}
function set(Map storage map, address key, uint val) internal {
if (map.inserted[key]) {
map.values[key] = val;
} else {
map.inserted[key] = true;
map.values[key] = val;
map.indexOf[key] = map.keys.length;
map.keys.push(key);
}
}
function remove(Map storage map, address key) internal {
if (!map.inserted[key]) {
return;
}
delete map.inserted[key];
delete map.values[key];
uint index = map.indexOf[key];
uint lastIndex = map.keys.length - 1;
address lastKey = map.keys[lastIndex];
map.indexOf[lastKey] = index;
delete map.indexOf[key];
map.keys[index] = lastKey;
map.keys.pop();
}
}
// File: contracts/IUniswapV2Factory.sol
pragma solidity ^0.8.17;
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;
}
// File: contracts/IUniswapV2Pair.sol
pragma solidity ^0.8.17;
interface IUniswapV2Pair {
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
event Transfer(address indexed from, address indexed to, uint256 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 (uint256);
function balanceOf(address owner) external view returns (uint256);
function allowance(address owner, address spender)
external
view
returns (uint256);
function approve(address spender, uint256 value) external returns (bool);
function transfer(address to, uint256 value) external returns (bool);
function transferFrom(
address from,
address to,
uint256 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 (uint256);
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
event Mint(address indexed sender, uint256 amount0, uint256 amount1);
event Burn(
address indexed sender,
uint256 amount0,
uint256 amount1,
address indexed to
);
event Swap(
address indexed sender,
uint256 amount0In,
uint256 amount1In,
uint256 amount0Out,
uint256 amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint256);
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 (uint256);
function price1CumulativeLast() external view returns (uint256);
function kLast() external view returns (uint256);
function mint(address to) external returns (uint256 liquidity);
function burn(address to)
external
returns (uint256 amount0, uint256 amount1);
function swap(
uint256 amount0Out,
uint256 amount1Out,
address to,
bytes calldata data
) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
////// src/IUniswapV2Router02.sol
/* pragma solidity 0.8.10; */
/* pragma experimental ABIEncoderV2; */
interface IUniswapV2Router02 {
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;
}
// File: contracts/IDividendPayingTokenOptional.sol
pragma solidity ^0.8.7;
/// @title Dividend-Paying Token Optional Interface
/// @author Roger Wu (https://github.com/roger-wu)
/// @dev OPTIONAL functions for a dividend-paying token contract.
interface IDividendPayingTokenOptional {
/// @notice View the amount of dividend in wei that an address can withdraw.
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` can withdraw.
function withdrawableDividendOf(address _owner) external view returns(uint256);
/// @notice View the amount of dividend in wei that an address has withdrawn.
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` has withdrawn.
function withdrawnDividendOf(address _owner) external view returns(uint256);
/// @notice View the amount of dividend in wei that an address has earned in total.
/// @dev accumulativeDividendOf(_owner) = withdrawableDividendOf(_owner) + withdrawnDividendOf(_owner)
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` has earned in total.
function accumulativeDividendOf(address _owner) external view returns(uint256);
}
// File: contracts/IDividendPayingToken.sol
pragma solidity ^0.8.7;
/// @title Dividend-Paying Token Interface
/// @dev An interface for a dividend-paying token contract.
interface IDividendPayingToken {
/// @notice View the amount of dividend in wei that an address can withdraw.
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` can withdraw.
function dividendOf(address _owner) external view returns(uint256);
/// @notice Distributes ether to token holders as dividends.
/// @dev SHOULD distribute the paid ether to token holders as dividends.
/// SHOULD NOT directly transfer ether to token holders in this function.
/// MUST emit a `DividendsDistributed` event when the amount of distributed ether is greater than 0.
function distributeDividends() external payable;
/// @notice Withdraws the ether distributed to the sender.
/// @dev SHOULD transfer `dividendOf(msg.sender)` wei to `msg.sender`, and `dividendOf(msg.sender)` SHOULD be 0 after the transfer.
/// MUST emit a `DividendWithdrawn` event if the amount of ether transferred is greater than 0.
function withdrawDividend() external;
/// @dev This event MUST emit when ether is distributed to token holders.
/// @param from The address which sends ether to this contract.
/// @param weiAmount The amount of distributed ether in wei.
event DividendsDistributed(
address indexed from,
uint256 weiAmount
);
/// @dev This event MUST emit when an address withdraws their dividend.
/// @param to The address which withdraws ether from this contract.
/// @param weiAmount The amount of withdrawn ether in wei.
event DividendWithdrawn(
address indexed to,
uint256 weiAmount
);
}
// File: contracts/SafeMathInt.sol
pragma solidity ^0.8.17;
library SafeMathInt {
function mul(int256 a, int256 b) internal pure returns (int256) {
// Prevent overflow when multiplying INT256_MIN with -1
// https://github.com/RequestNetwork/requestNetwork/issues/43
require(!(a == - 2**255 && b == -1) && !(b == - 2**255 && a == -1));
int256 c = a * b;
require((b == 0) || (c / b == a));
return c;
}
function div(int256 a, int256 b) internal pure returns (int256) {
// Prevent overflow when dividing INT256_MIN by -1
// https://github.com/RequestNetwork/requestNetwork/issues/43
require(!(a == - 2**255 && b == -1) && (b > 0));
return a / b;
}
function sub(int256 a, int256 b) internal pure returns (int256) {
require((b >= 0 && a - b <= a) || (b < 0 && a - b > a));
return a - b;
}
function add(int256 a, int256 b) internal pure returns (int256) {
int256 c = a + b;
require((b >= 0 && c >= a) || (b < 0 && c < a));
return c;
}
function toUint256Safe(int256 a) internal pure returns (uint256) {
require(a >= 0);
return uint256(a);
}
}
// File: contracts/SafeMathUint.sol
pragma solidity ^0.8.17;
/**
* @title SafeMathUint
* @dev Math operations with safety checks that revert on error
*/
library SafeMathUint {
function toInt256Safe(uint256 a) internal pure returns (int256) {
int256 b = int256(a);
require(b >= 0);
return b;
}
}
// File: @openzeppelin/contracts/utils/math/SafeMath.sol
// OpenZeppelin Contracts (last updated v4.6.0) (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;
}
}
}
// File: contracts/IUniswapV2Router.sol
pragma solidity ^0.8.17;
interface IUniswapV2Router {
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;
}
// File: @openzeppelin/contracts/token/ERC20/IERC20.sol
// OpenZeppelin Contracts (last updated v4.6.0) (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);
}
// File: @openzeppelin/contracts/interfaces/IERC20.sol
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC20.sol)
pragma solidity ^0.8.0;
// File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.0;
/**
* @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);
}
// File: @openzeppelin/contracts/utils/Context.sol
// OpenZeppelin Contracts v4.4.1 (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;
}
}
// File: @openzeppelin/contracts/token/ERC20/ERC20.sol
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.0;
/**
* @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.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* 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}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* 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 value {ERC20} uses, unless this function is
* 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;
}
_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;
_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;
}
_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 {}
}
// File: @openzeppelin/contracts/access/Ownable.sol
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
/**
* @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 anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing 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);
}
}
// File: contracts/DividendPayingToken.sol
pragma solidity ^0.8.17;
/// @title Dividend-Paying Token
/// @dev A mintable ERC20 token that allows anyone to pay and distribute ether
/// to token holders as dividends and allows token holders to withdraw their dividends.
/// Reference: the source code of PoWH3D: https://etherscan.io/address/0xB3775fB83F7D12A36E0475aBdD1FCA35c091efBe#code
contract DividendPayingToken is ERC20, IDividendPayingToken, IDividendPayingTokenOptional, Ownable {
using SafeMath for uint256;
using SafeMathUint for uint256;
using SafeMathInt for int256;
// With `magnitude`, we can properly distribute dividends even if the amount of received ether is small.
// For more discussion about choosing the value of `magnitude`,
// see https://github.com/ethereum/EIPs/issues/1726#issuecomment-472352728
uint256 constant internal magnitude = 2**128;
uint256 internal magnifiedDividendPerShare;
// About dividendCorrection:
// If the token balance of a `_user` is never changed, the dividend of `_user` can be computed with:
// `dividendOf(_user) = dividendPerShare * balanceOf(_user)`.
// When `balanceOf(_user)` is changed (via minting/burning/transferring tokens),
// `dividendOf(_user)` should not be changed,
// but the computed value of `dividendPerShare * balanceOf(_user)` is changed.
// To keep the `dividendOf(_user)` unchanged, we add a correction term:
// `dividendOf(_user) = dividendPerShare * balanceOf(_user) + dividendCorrectionOf(_user)`,
// where `dividendCorrectionOf(_user)` is updated whenever `balanceOf(_user)` is changed:
// `dividendCorrectionOf(_user) = dividendPerShare * (old balanceOf(_user)) - (new balanceOf(_user))`.
// So now `dividendOf(_user)` returns the same value before and after `balanceOf(_user)` is changed.
mapping(address => int256) internal magnifiedDividendCorrections;
mapping(address => uint256) internal withdrawnDividends;
mapping(address => bool) internal _isAuth;
address public dividendToken;
uint256 public totalDividendsDistributed;
constructor(string memory _name, string memory _symbol, address _dividendToken) ERC20(_name, _symbol) {
dividendToken = _dividendToken;
_isAuth[msg.sender] = true;
}
/// @dev Distributes dividends whenever ether is paid to this contract.
receive() external payable {
distributeDividends();
}
/// @notice Distributes ether to token holders as dividends.
/// @dev It reverts if the total supply of tokens is 0.
/// It emits the `DividendsDistributed` event if the amount of received ether is greater than 0.
/// About undistributed ether:
/// In each distribution, there is a small amount of ether not distributed,
/// the magnified amount of which is
/// `(msg.value * magnitude) % totalSupply()`.
/// With a well-chosen `magnitude`, the amount of undistributed ether
/// (de-magnified) in a distribution can be less than 1 wei.
/// We can actually keep track of the undistributed ether in a distribution
/// and try to distribute it in the next distribution,
/// but keeping track of such data on-chain costs much more than
/// the saved ether, so we don't do that.
function distributeDividends() public override payable {
require(totalSupply() > 0);
if (msg.value > 0) {
magnifiedDividendPerShare = magnifiedDividendPerShare.add(
(msg.value).mul(magnitude) / totalSupply()
);
emit DividendsDistributed(msg.sender, msg.value);
totalDividendsDistributed = totalDividendsDistributed.add(msg.value);
}
}
function distributeTokenDividends(uint256 amount) public onlyOwner {
require(totalSupply() > 0);
if (amount > 0) {
magnifiedDividendPerShare = magnifiedDividendPerShare.add(
(amount).mul(magnitude) / totalSupply()
);
emit DividendsDistributed(msg.sender, amount);
totalDividendsDistributed = totalDividendsDistributed.add(amount);
}
}
/// @notice Withdraws the ether distributed to the sender.
/// @dev It emits a `DividendWithdrawn` event if the amount of withdrawn ether is greater than 0.
function withdrawDividend() public virtual override {
_withdrawDividendOfUser(payable(msg.sender));
}
/// @notice Withdraws the ether distributed to the sender.
/// @dev It emits a `DividendWithdrawn` event if the amount of withdrawn ether is greater than 0.
function _withdrawDividendOfUser(address payable user) internal returns (uint256) {
uint256 _withdrawableDividend = withdrawableDividendOf(user);
if (_withdrawableDividend > 0) {
withdrawnDividends[user] = withdrawnDividends[user].add(_withdrawableDividend);
emit DividendWithdrawn(user, _withdrawableDividend);
(bool success,) = user.call{value: _withdrawableDividend, gas: 3000}("");
if(!success) {
withdrawnDividends[user] = withdrawnDividends[user].sub(_withdrawableDividend);
return 0;
}
return _withdrawableDividend;
}
return 0;
}
/// @notice View the amount of dividend in wei that an address can withdraw.
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` can withdraw.
function dividendOf(address _owner) public view override returns(uint256) {
return withdrawableDividendOf(_owner);
}
/// @notice View the amount of dividend in wei that an address can withdraw.
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` can withdraw.
function withdrawableDividendOf(address _owner) public view override returns(uint256) {
return accumulativeDividendOf(_owner).sub(withdrawnDividends[_owner]);
}
/// @notice View the amount of dividend in wei that an address has withdrawn.
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` has withdrawn.
function withdrawnDividendOf(address _owner) public view override returns(uint256) {
return withdrawnDividends[_owner];
}
/// @notice View the amount of dividend in wei that an address has earned in total.
/// @dev accumulativeDividendOf(_owner) = withdrawableDividendOf(_owner) + withdrawnDividendOf(_owner)
/// = (magnifiedDividendPerShare * balanceOf(_owner) + magnifiedDividendCorrections[_owner]) / magnitude
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` has earned in total.
function accumulativeDividendOf(address _owner) public view override returns(uint256) {
return magnifiedDividendPerShare.mul(balanceOf(_owner)).toInt256Safe()
.add(magnifiedDividendCorrections[_owner]).toUint256Safe() / magnitude;
}
/// @dev Set the address of the dividend token
/// @param _dividendToken address of the dividend token being set
function setDividendTokenAddress(address _dividendToken) external virtual onlyOwner{
dividendToken = _dividendToken;
}
/// @dev Set Authorized accounts for calling external functionts
/// @param account address of the account being authorized
function setAuth(address account, bool status) external onlyOwner{
_isAuth[account] = status;
}
/// @dev Internal function that transfer tokens from one address to another.
/// Update magnifiedDividendCorrections to keep dividends unchanged.
/// @param from The address to transfer from.
/// @param to The address to transfer to.
/// @param value The amount to be transferred.
function _transfer(address from, address to, uint256 value) internal virtual override {
require(false);
int256 _magCorrection = magnifiedDividendPerShare.mul(value).toInt256Safe();
magnifiedDividendCorrections[from] = magnifiedDividendCorrections[from].add(_magCorrection);
magnifiedDividendCorrections[to] = magnifiedDividendCorrections[to].sub(_magCorrection);
}
/// @dev Internal function that mints tokens to an account.
/// Update magnifiedDividendCorrections to keep dividends unchanged.
/// @param account The account that will receive the created tokens.
/// @param value The amount that will be created.
function _mint(address account, uint256 value) internal override {
super._mint(account, value);
magnifiedDividendCorrections[account] = magnifiedDividendCorrections[account]
.sub( (magnifiedDividendPerShare.mul(value)).toInt256Safe() );
}
/// @dev Internal function that burns an amount of the token of a given account.
/// Update magnifiedDividendCorrections to keep dividends unchanged.
/// @param account The account whose tokens will be burnt.
/// @param value The amount that will be burnt.
function _burn(address account, uint256 value) internal override {
super._burn(account, value);
magnifiedDividendCorrections[account] = magnifiedDividendCorrections[account]
.add( (magnifiedDividendPerShare.mul(value)).toInt256Safe() );
}
function _setBalance(address account, uint256 newBalance) internal {
uint256 currentBalance = balanceOf(account);
if(newBalance > currentBalance) {
uint256 mintAmount = newBalance.sub(currentBalance);
_mint(account, mintAmount);
} else if(newBalance < currentBalance) {
uint256 burnAmount = currentBalance.sub(newBalance);
_burn(account, burnAmount);
}
}
}
// File: contracts/MarshelleInuDividendTracker.sol
pragma solidity ^0.8.17;
contract MarshelleInuDividendTracker is DividendPayingToken {
using SafeMath for uint256;
using SafeMathInt for int256;
using IterableMapping for IterableMapping.Map;
IterableMapping.Map private tokenHoldersMap;
uint256 public lastProcessedIndex;
mapping (address => bool) public excludedFromDividends;
mapping (address => uint256) public lastClaimTimes;
uint256 public claimWait;
uint256 public minimumTokenBalanceForDividends;
event ExcludeFromDividends(address indexed account);
event ClaimWaitUpdated(
uint256 indexed newValue,
uint256 indexed oldValue
);
event Claim(
address indexed account,
uint256 amount,
bool indexed automatic
);
constructor(address _dividentToken) DividendPayingToken("MarshelleInu_Tracker", "MarshelleInu_Tracker",_dividentToken) {
claimWait = 60;
minimumTokenBalanceForDividends = 1_000_0 * (10**18);
}
function _transfer(address, address, uint256) pure internal override {
require(false, "MarshelleInu_Tracker: No transfers allowed");
}
function withdrawDividend() pure public override {
require(false, "MarshelleInu_Tracker: withdrawDividend disabled. Use the 'claim' function on the main MarshelleInu contract.");
}
function setDividendTokenAddress(address newToken) external override onlyOwner {
dividendToken = newToken;
}
function updateMinimumTokenBalanceForDividends(uint256 _newMinimumBalance) external onlyOwner {
require(_newMinimumBalance != minimumTokenBalanceForDividends, "New mimimum balance for dividend cannot be same as current minimum balance");
minimumTokenBalanceForDividends = _newMinimumBalance * (10**9);
}
function excludeFromDividends(address account) external onlyOwner {
require(!excludedFromDividends[account],"Address already excluded from dividends");
excludedFromDividends[account] = true;
_setBalance(account, 0);
tokenHoldersMap.remove(account);
emit ExcludeFromDividends(account);
}
function includeInDividends(address account) external onlyOwner {
excludedFromDividends[account] = false;
}
function updateClaimWait(uint256 newClaimWait) external onlyOwner {
require(newClaimWait >= 3600 && newClaimWait <= 86400, "MarshelleInu_Tracker: claimWait must be updated to between 1 and 24 hours");
require(newClaimWait != claimWait, "MarshelleInu_Tracker: Cannot update claimWait to same value");
emit ClaimWaitUpdated(newClaimWait, claimWait);
claimWait = newClaimWait;
}
function getLastProcessedIndex() external view returns(uint256) {
return lastProcessedIndex;
}
function getNumberOfTokenHolders() external view returns(uint256) {
return tokenHoldersMap.keys.length;
}
function getAccount(address _account)
public view returns (
address account,
int256 index,
int256 iterationsUntilProcessed,
uint256 withdrawableDividends,
uint256 totalDividends,
uint256 lastClaimTime,
uint256 nextClaimTime,
uint256 secondsUntilAutoClaimAvailable) {
account = _account;
index = tokenHoldersMap.getIndexOfKey(account);
iterationsUntilProcessed = -1;
if(index >= 0) {
if(uint256(index) > lastProcessedIndex) {
iterationsUntilProcessed = index.sub(int256(lastProcessedIndex));
}
else {
uint256 processesUntilEndOfArray = tokenHoldersMap.keys.length > lastProcessedIndex ?
tokenHoldersMap.keys.length.sub(lastProcessedIndex) :
0;
iterationsUntilProcessed = index.add(int256(processesUntilEndOfArray));
}
}
withdrawableDividends = withdrawableDividendOf(account);
totalDividends = accumulativeDividendOf(account);
lastClaimTime = lastClaimTimes[account];
nextClaimTime = lastClaimTime > 0 ?
lastClaimTime.add(claimWait) :
0;
secondsUntilAutoClaimAvailable = nextClaimTime > block.timestamp ?
nextClaimTime.sub(block.timestamp) :
0;
}
function getAccountAtIndex(uint256 index)
public view returns (
address,
int256,
int256,
uint256,
uint256,
uint256,
uint256,
uint256) {
if(index >= tokenHoldersMap.size()) {
return (0x0000000000000000000000000000000000000000, -1, -1, 0, 0, 0, 0, 0);
}
address account = tokenHoldersMap.getKeyAtIndex(index);
return getAccount(account);
}
function canAutoClaim(uint256 lastClaimTime) private view returns (bool) {
if(lastClaimTime > block.timestamp) {
return false;
}
return block.timestamp.sub(lastClaimTime) >= claimWait;
}
function setBalance(
address payable account,
uint256 newBalance
) external onlyOwner {
if(excludedFromDividends[account]) {
return;
}
if(newBalance >= minimumTokenBalanceForDividends) {
_setBalance(account, newBalance);
tokenHoldersMap.set(account, newBalance);
}
else {
_setBalance(account, 0);
tokenHoldersMap.remove(account);
}
processAccount(account, true);
}
function process(uint256 gas) public returns (uint256, uint256, uint256) {
uint256 numberOfTokenHolders = tokenHoldersMap.keys.length;
if(numberOfTokenHolders == 0) {
return (0, 0, lastProcessedIndex);
}
uint256 _lastProcessedIndex = lastProcessedIndex;
uint256 gasUsed = 0;
uint256 gasLeft = gasleft();
uint256 iterations = 0;
uint256 claims = 0;
while(gasUsed < gas && iterations < numberOfTokenHolders) {
_lastProcessedIndex++;
if(_lastProcessedIndex >= tokenHoldersMap.keys.length) {
_lastProcessedIndex = 0;
}
address account = tokenHoldersMap.keys[_lastProcessedIndex];
if(canAutoClaim(lastClaimTimes[account])) {
if(processAccount(payable(account), true)) {
claims++;
}
}
iterations++;
uint256 newGasLeft = gasleft();
if(gasLeft > newGasLeft) {
gasUsed = gasUsed.add(gasLeft.sub(newGasLeft));
}
gasLeft = newGasLeft;
}
lastProcessedIndex = _lastProcessedIndex;
return (iterations, claims, lastProcessedIndex);
}
function processAccount(
address payable account,
bool automatic
) public onlyOwner returns (bool) {
uint256 amount = _withdrawDividendOfUser(account);
if(amount > 0) {
lastClaimTimes[account] = block.timestamp;
emit Claim(account, amount, automatic);
return true;
}
return false;
}
}
// File: contracts/MarshelleInu.sol
pragma solidity ^0.8.17;
/*****
* ,---. ,---. ____ .-------. .-'''-. .---. .---. .-''-. .---. .---. .-''-. .-./`) ,---. .--. ___ _
* | \ / | .' __ `. | _ _ \ / _ \| | |_ _| .'_ _ \ | ,_| | ,_| .'_ _ \ \ .-.')| \ | |.' | | |
* | , \/ , |/ ' \ \| ( ' ) | (`' )/`--'| | ( ' ) / ( ` ) ',-./ ) ,-./ ) / ( ` ) ' / `-' \| , \ | || .' | |
* | |\_ /| ||___| / ||(_ o _) / (_ o _). | '-(_{;}_). (_ o _) |\ '_ '`) \ '_ '`) . (_ o _) | `-'`"`| |\_ \| |.' '_ | |
* | _( )_/ | | _.-` || (_,_).' __ (_,_). '. | (_,_) | (_,_)___| > (_) ) > (_) ) | (_,_)___| .---. | _( )_\ |' ( \.-.|
* | (_ o _) | |.' _ || |\ \ | |.---. \ :| _ _--. | ' \ .---.( . .-' ( . .-' ' \ .---. | | | (_ o _) |' (`. _` /|
* | (_,_) | || _( )_ || | \ `' /\ `-' ||( ' ) | | \ `-' / `-'`-'|___`-'`-'|___\ `-' / | | | (_,_)\ || (_ (_) _)
* | | | |\ (_ o _) /| | \ / \ / (_{;}_)| | \ / | \| \\ / | | | | | | \ / . \ /
* '--' '--' '.(_,_).' ''-' `'-' `-...-' '(_,_) '---' `'-..-' `--------``--------` `'-..-' '---' '--' '--' ``-'`-''
*****/
contract MarshelleInu is ERC20, Ownable {
using SafeMath for uint256;
IUniswapV2Router private uniswapV2Router;
MarshelleInuDividendTracker public marshelleInuDividendTracker;
address private uniswapV2Pair;
address public constant deadAddress = address(0xdead);
address public MRI = address(0x0913dDAE242839f8995c0375493f9a1A3Bddc977);
address public marketingWallet = address(0x4EB85dA43eb3587E21294d4d5a6922892CF12658);
address public devWallet = address(0x721a025a1dA21C22Cc811E3117053939D31047Ce);
// boolean
bool private isSwapping;
bool swapAndLiquifyEnabled;
bool public ProcessDividendStatus;
// uint
uint256 public _totalSupply;
uint256 public maxBuyTxAmount;
uint256 public maxSellTxAmount;
uint256 public maxWalletAmount;
uint256 public swapAndLiquifyThreshold;
uint256 public tradingEnabledAt;
uint256 private buyTotalFees;
uint256 private buyMarketingFee;
uint256 private buyDevFee;
uint256 private buyLiquidityFee;
uint256 private buyReflectionsFee;
uint256 private sellTotalFees;
uint256 private sellMarketingFee;
uint256 private sellDevFee;
uint256 private sellLiquidityFee;
uint256 private sellReflectionsFee;
uint256 private tokensForMarketing;
uint256 private tokensForDev;
uint256 private tokensForLiquidity;
uint256 private tokensForReflections;
uint256 public gasForProcessing = 300000;
// mappings
mapping(address => bool) public _isExcludedFromFees;
mapping(address => bool) public _isExcludedFromMaxTrade;
mapping(address => bool) public _isExcludedFromMaxWallet;
mapping(address => bool) public automatedMarketMakerPairs;
// mapping(address => bool) public presaleAcc;
event UpdateBuyFees(
uint256 buyTotalFees,
uint256 buyMarketingFee,
uint256 buyDevFee,
uint256 buyLiquidityFee,
uint256 buyReflectionsFee
);
event UpdateSellFees(
uint256 sellTotalFees,
uint256 sellMarketingFee,
uint256 sellDevFee,
uint256 sellLiquidityFee,
uint256 sellReflectionsFee
);
event UpdateUniswapV2Router(
address indexed newRouter,
address indexed oldRouter
);
event ExcludeFromFees(address indexed account, bool isExcluded);
event ExcludeFromMaxTrade(address indexed account, bool isExcluded);
event ExcludeFromMaxWallet(address indexed account, bool isExcluded);
event SetAutomatedMarketMakerPair(
address indexed pair,
bool indexed status
);
event UpdateDevWallet(address indexed newWallet, address indexed oldWallet);
event UpdateMarketingWallet(
address indexed newWallet,
address indexed oldWallet
);
event UpdateDividendToken(address indexed oldDividendToken, address indexed newDividendToken);
event IncludeInDividends(address indexed wallet);
event ExcludeFromDividends(address indexed wallet);
event UpdateDividendTracker(
address oldDividendTracker,
address newDividendTracker
);
event UpdateDividendAddress(
address oldDividendAddress,
address newDividendAddress
);
event UpdateSwapAndLiquify(bool enabled);
event UpadateDividendEnabled(bool enabled);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiquidity
);
event SendDividends(uint256 tokensSwapped, uint256 amount);
event ProcessedDividendTracker(
uint256 iterations,
uint256 claims,
uint256 lastProcessedIndex,
bool indexed automatic,
uint256 gas,
address indexed processor
);
constructor() ERC20("MarshelleInu", "ELLE") {
IUniswapV2Router _uniswapV2Router = IUniswapV2Router(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
_initializeVariables();
/*
_mint is an internal function in ERC20.sol that is only called here,
and CANNOT be called ever again
*/
_mint(msg.sender, _totalSupply);
}
receive() external payable {}
// initialize state variables at deploy
function _initializeVariables() private {
_isExcludedFromFees[uniswapV2Pair] = true;
_isExcludedFromMaxTrade[uniswapV2Pair] = true;
_isExcludedFromMaxWallet[uniswapV2Pair] = true;
automatedMarketMakerPairs[uniswapV2Pair] = true;
// exclude from paying fees or having max transaction amount
_isExcludedFromFees[owner()] = true;
_isExcludedFromFees[address(this)] = true;
_isExcludedFromFees[deadAddress] = true;
_isExcludedFromMaxTrade[owner()] = true;
_isExcludedFromMaxTrade[address(this)] = true;
_isExcludedFromMaxTrade[deadAddress] = true;
_isExcludedFromMaxWallet[owner()] = true;
// _isExcludedFromMaxWallet[address(Oxdead)] = true;
_isExcludedFromMaxWallet[address(this)] = true;
marshelleInuDividendTracker = new MarshelleInuDividendTracker(MRI);
marshelleInuDividendTracker.setAuth(owner(), true);
// _allowances[address(this)][address(uniswapV2Router)] = uint256(-1);
// _allowances[address(this)][address(router)] = uint256(-1);
marshelleInuDividendTracker.excludeFromDividends(address(marshelleInuDividendTracker));
marshelleInuDividendTracker.excludedFromDividends(address(this));
marshelleInuDividendTracker.excludedFromDividends(address(uniswapV2Router));
marshelleInuDividendTracker.excludedFromDividends(deadAddress);
marshelleInuDividendTracker.excludedFromDividends(owner());
// presaleAcc[owner()] = true;
_totalSupply = 1_000_000_000 * 1e18;
maxBuyTxAmount = 20_000_000 * 1e18; // 2% of total supply
maxSellTxAmount = 10_000_000 * 1e18; // 1% of total supply
maxWalletAmount = 20_000_000 * 1e18; // 2% of total supply
swapAndLiquifyThreshold = (_totalSupply * 2) / 10000; // 0.02% contarct swap
buyMarketingFee = 3;
buyDevFee = 1;
buyLiquidityFee = 2;
buyReflectionsFee = 2;
buyTotalFees =
buyMarketingFee +
buyDevFee +
buyLiquidityFee +
buyReflectionsFee;
sellMarketingFee = 7;
sellDevFee = 1;
sellLiquidityFee = 2;
sellReflectionsFee = 2;
sellTotalFees =
sellMarketingFee +
sellDevFee +
sellLiquidityFee +
sellReflectionsFee;
ProcessDividendStatus = true;
marketingWallet = deadAddress;
devWallet = deadAddress;
}
function _transfer(
address from,
address to,
uint256 amount
) internal override {
//tx utility vars
// uint256 trade_type = 0;
bool overSwapThreshold = balanceOf(address(this)) >=
swapAndLiquifyThreshold;
if (!isSwapping) {
// not a contract swap
if (automatedMarketMakerPairs[from]) {
//buy transaction
if (!_isExcludedFromMaxTrade[to]) {
// tx limit
if (amount > maxBuyTxAmount)
revert TransferError("Exceeded max buy TxAmount");
}
if (!_isExcludedFromMaxWallet[to]) {
// wallet limit
if (balanceOf(to) + amount > maxWalletAmount)
revert TransferError("Exceeded max buy TxAmount");
}
// takeFees - buy
if (buyTotalFees > 0 && !_isExcludedFromFees[to]) {
uint256 txFees = (amount * buyTotalFees) / 100;
amount -= txFees;
tokensForMarketing +=
(txFees * buyMarketingFee) /
buyTotalFees;
tokensForDev += (txFees * buyDevFee) / buyTotalFees;
tokensForLiquidity +=
(txFees * buyLiquidityFee) /
buyTotalFees;
tokensForReflections +=
(txFees * buyReflectionsFee) /
buyTotalFees;
super._transfer(from, address(this), txFees);
}
} else if (automatedMarketMakerPairs[to]) {
//sell transaction
if (
swapAndLiquifyEnabled &&
sellTotalFees > 0 &&
overSwapThreshold
) swapBack();
if (!_isExcludedFromMaxTrade[from]) {
if (amount > maxSellTxAmount)
revert TransferError("Exceeded max sell TxAmount");
}
// check whether to sell from the contract
// takefees - sell
if (sellTotalFees > 0 && !_isExcludedFromFees[from]) {
uint256 txFees = (amount * sellTotalFees) / 100;
amount -= txFees;
tokensForMarketing +=
(txFees * sellMarketingFee) /
sellTotalFees;
tokensForDev += (txFees * sellDevFee) / sellTotalFees;
tokensForLiquidity +=
(txFees * sellLiquidityFee) /
sellTotalFees;
tokensForReflections +=
(txFees * sellReflectionsFee) /
sellTotalFees;
super._transfer(from, address(this), txFees);
}
}
}
// transfer tokens erc20 standard
super._transfer(from, to, amount);
//set dividends
try
marshelleInuDividendTracker.setBalance(payable(from), balanceOf(from))
{} catch {}
try
marshelleInuDividendTracker.setBalance(payable(to), balanceOf(to))
{} catch {}
// auto-claims one time per transaction
if (!isSwapping && ProcessDividendStatus) {
uint256 gas = gasForProcessing;
try marshelleInuDividendTracker.process(gas) returns (
uint256 iterations,
uint256 claims,
uint256 lastProcessedIndex
) {
emit ProcessedDividendTracker(
iterations,
claims,
lastProcessedIndex,
true,
gas,
tx.origin
);
} catch {}
}
}
function swapTokensForETH(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(address(this), address(uniswapV2Router), tokenAmount);
// make the swap
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
// approve token transfer to cover all possible scenarios
_approve(address(this), address(uniswapV2Router), tokenAmount);
// add the liquidity
uniswapV2Router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
deadAddress,
block.timestamp
);
}
function swapETHForMRI(uint256 ethAmount) private {
if(ethAmount > 0){
address[] memory path = new address[](2);
path[0] = uniswapV2Router.WETH();
path[1] = MRI;
uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: ethAmount}(
0,
path,
address(this),
block.timestamp
);
}
}
function swapBack() private {
isSwapping = true;
uint256 contractBalance = balanceOf(address(this));
uint256 totalTokens = tokensForDev +
tokensForMarketing +
tokensForLiquidity +
tokensForReflections;
bool success;
uint256 swapBalance;
if (contractBalance == 0 || totalTokens == 0) {
return;
}
if(totalTokens > swapAndLiquifyThreshold){
// never swap more than the threshold
swapBalance = swapAndLiquifyThreshold;
} else{
swapBalance = totalTokens;
}
// Halve the amount of liquidity tokens
uint256 liquidityTokens = (swapBalance * tokensForLiquidity) /
totalTokens /
2;
uint256 amountToSwapForETH = swapBalance - liquidityTokens;
uint256 initialETHBalance = address(this).balance;
swapTokensForETH(amountToSwapForETH);
uint256 ethBalance = address(this).balance - initialETHBalance;
uint256 ethForDev = (ethBalance * tokensForDev) / totalTokens;
uint256 ethForLiquidity = (ethBalance * tokensForLiquidity) /
totalTokens;
uint256 ethForReflections = (ethBalance * tokensForReflections) /
totalTokens;
(success, ) = address(devWallet).call{value: ethForDev}("");
if (liquidityTokens > 0 && ethForLiquidity > 0) {
addLiquidity(liquidityTokens, ethForLiquidity);
emit SwapAndLiquify(
amountToSwapForETH,
ethForLiquidity,
tokensForLiquidity
);
}
swapETHForMRI(ethForReflections);
uint256 tokenBalance = IERC20(MRI).balanceOf(address(this));
success = IERC20(MRI).transfer(
address(marshelleInuDividendTracker),
tokenBalance
);
if (success) {
marshelleInuDividendTracker.distributeTokenDividends(tokenBalance);
emit SendDividends(tokenBalance, ethForReflections);
}
(success, ) = address(marketingWallet).call{
value: address(this).balance
}("");
contractBalance = balanceOf(address(this));
tokensForLiquidity =
(contractBalance * sellLiquidityFee) /
sellTotalFees;
tokensForMarketing =
(contractBalance * sellMarketingFee) /
sellTotalFees;
tokensForDev = (contractBalance * sellDevFee) / sellTotalFees;
tokensForReflections =
(contractBalance * sellReflectionsFee) /
sellTotalFees;
isSwapping = false;
}
function manualSwapBack() external onlyOwner{
if(balanceOf(address(this)) > 0 )
swapBack();
}
function claim() external {
marshelleInuDividendTracker.processAccount(payable(msg.sender), false);
}
/////////////////////////////////////////////////////////////////////////////////////
///// Setter functions
/////////////////////////////////////////////////////////////////////////////////////
/**
* @dev Change the threshold for making the contract sell and adding liquidity
* @param newThreshold : new
*/
function updateSwapTokensAtAmount(uint256 newThreshold)
external
onlyOwner
returns (bool)
{
if (newThreshold < (totalSupply() * 1) / 100000)
revert InvalidSwapTokenAmount(
"Swap amount cannot be lower than 0.001% total supply."
);
if (newThreshold > (totalSupply() * 1) / 1000)
revert InvalidSwapTokenAmount(
"Swap amount cannot be higher than 0.1% total supply."
);
swapAndLiquifyThreshold = newThreshold;
return true;
}
function updateMaxTxnAmount(uint256 newMaxBuy, uint256 newMaxSell)
external
onlyOwner
{
if (newMaxBuy < ((totalSupply() * 5) / 1000) / 1e18)
revert InvalidMaxTradeAmount(
"Cannot set max buy lower than 0.5%"
);
if (newMaxSell < ((totalSupply() * 5) / 1000) / 1e18)
revert InvalidMaxTradeAmount(
"Cannot set max sell lower than 0.5%"
);
maxBuyTxAmount = newMaxBuy * (10**18);
maxSellTxAmount = newMaxSell * (10**18);
}
function updateMaxWalletAmount(uint256 newMaxWallet) external onlyOwner {
if (newMaxWallet < ((totalSupply() * 5) / 1000) / 1e18)
revert InvalidMaxWalletAmount(
"Cannot set maxWallet lower than 0.5%"
);
maxWalletAmount = newMaxWallet * (10**18);
}
function excludeFromMaxWallet(address account, bool isExcluded)
external
onlyOwner
{
_isExcludedFromMaxWallet[account] = isExcluded;
emit ExcludeFromMaxWallet(account, isExcluded);
}
function excludeFromMaxTrade(address account, bool isExcluded)
external
onlyOwner
{
_isExcludedFromMaxTrade[account] = isExcluded;
emit ExcludeFromMaxTrade(account, isExcluded);
}
function excludeFromFees(address account, bool isExcluded)
external
onlyOwner
{
_isExcludedFromFees[account] = isExcluded;
emit ExcludeFromFees(account, isExcluded);
}
function setAutomatedMarketMakerPair(address pair, bool status)
external
onlyOwner
{
automatedMarketMakerPairs[pair] = status;
emit SetAutomatedMarketMakerPair(pair, status);
}
function updateBuyFees(
uint256 _buyMarketingFee,
uint256 _buyDevFee,
uint256 _buyLiquidityFee,
uint256 _buyReflectionsFee
) external onlyOwner {
buyMarketingFee = _buyMarketingFee;
buyDevFee = _buyDevFee;
buyLiquidityFee = _buyLiquidityFee;
buyReflectionsFee = _buyReflectionsFee;
buyTotalFees =
buyMarketingFee +
buyDevFee +
buyLiquidityFee +
buyReflectionsFee;
if (sellTotalFees + buyTotalFees > 25)
revert InvalidTotalFees("Total Fees must be less than 25%");
emit UpdateBuyFees(
buyTotalFees,
buyMarketingFee,
buyDevFee,
buyLiquidityFee,
buyReflectionsFee
);
}
function updateSellFees(
uint256 _sellMarketingFee,
uint256 _sellDevFee,
uint256 _sellLiquidityFee,
uint256 _sellReflectionsFee
) external onlyOwner {
sellMarketingFee = _sellMarketingFee;
sellDevFee = _sellDevFee;
sellLiquidityFee = _sellLiquidityFee;
sellReflectionsFee = _sellReflectionsFee;
sellTotalFees =
sellMarketingFee +
sellDevFee +
sellLiquidityFee +
sellReflectionsFee;
if (sellTotalFees + buyTotalFees > 25)
revert InvalidTotalFees("Total Fees must be less than 25%");
emit UpdateSellFees(
sellTotalFees,
sellMarketingFee,
sellDevFee,
sellLiquidityFee,
sellReflectionsFee
);
}
function setDevWallet (address payable _devWallet) external onlyOwner{
address oldAddress = devWallet;
devWallet = _devWallet;
emit UpdateDevWallet(oldAddress, _devWallet);
}
function setMarketingWallet(address payable _marketingWallet) external onlyOwner{
address oldAddress = marketingWallet;
marketingWallet = _marketingWallet;
emit UpdateMarketingWallet(oldAddress, _marketingWallet);
}
function setSwapAndLiquifyEnabled(
bool _status
) external onlyOwner {
swapAndLiquifyEnabled = _status;
}
/////////////////////////////////////////////////////////////////////////////////////
//// dividend setters
/////////////////////////////////////////////////////////////////////////////////////
function processDividendTracker(uint256 gas) external {
(
uint256 iterations,
uint256 claims,
uint256 lastProcessedIndex
) = marshelleInuDividendTracker.process(gas);
emit ProcessedDividendTracker(
iterations,
claims,
lastProcessedIndex,
false,
gas,
tx.origin
);
}
function updateDividendAddress(address newDividendAddress)
external
onlyOwner
{
address oldAddress = MRI;
MRI = newDividendAddress;
marshelleInuDividendTracker.setDividendTokenAddress(newDividendAddress);
emit UpdateDividendToken(oldAddress, MRI);
}
function updateDividendInclusion(address account, bool isIncluded) external onlyOwner {
if(isIncluded){
marshelleInuDividendTracker.includeInDividends(account);
emit IncludeInDividends(account);
} else{
marshelleInuDividendTracker.excludeFromDividends(account);
emit ExcludeFromDividends(account);
}
}
/////////////////////////////////////////////////////////////////////////////////////
///// Getter functions
/////////////////////////////////////////////////////////////////////////////////////
function getLastProcessedIndex() external view returns (uint256) {
return marshelleInuDividendTracker.getLastProcessedIndex();
}
function getNumberOfMarshelleDividendTokenHolders()
external
view
returns (uint256)
{
return marshelleInuDividendTracker.getNumberOfTokenHolders();
}
function getNumberOfMarshelleDividends() external view returns (uint256) {
return marshelleInuDividendTracker.totalSupply();
}
function getClaimWait() external view returns (uint256) {
return marshelleInuDividendTracker.claimWait();
}
function getTotalMarshelleDividendsDistributed()
external
view
returns (uint256)
{
return marshelleInuDividendTracker.totalDividendsDistributed();
}
function withdrawableMarshelleDividendOf(address account)
public
view
returns (uint256)
{
return marshelleInuDividendTracker.withdrawableDividendOf(account);
}
function marshelleInuDividendTokenBalanceOf(address account)
public
view
returns (uint256)
{
return marshelleInuDividendTracker.balanceOf(account);
}
function getAccountMarshelleDividendsInfo(address account)
external
view
returns (
address,
int256,
int256,
uint256,
uint256,
uint256,
uint256,
uint256
)
{
return marshelleInuDividendTracker.getAccount(account);
}
function getAccountMarshelleDividendsInfoAtIndex(uint256 index)
external
view
returns (
address,
int256,
int256,
uint256,
uint256,
uint256,
uint256,
uint256
)
{
return marshelleInuDividendTracker.getAccountAtIndex(index);
}
function getBuyFees()
external
view
returns (
uint256 _buyMarketingFee,
uint256 _buyDevFee,
uint256 _buyLiquidityFee,
uint256 _buyReflectionsFee
)
{
return (buyMarketingFee,
buyDevFee,
buyLiquidityFee,
buyReflectionsFee);
}
function getSellFees()
external
view
returns (
uint256 _sellMarketingFee,
uint256 _sellDevFee,
uint256 _sellLiquidityFee,
uint256 _sellReflectionFee
)
{
return (
sellMarketingFee,
sellDevFee,
sellLiquidityFee,
sellReflectionsFee
);
}
}