creation_sourcecode: {{
    "language": "Solidity",
    "sources": {
      "/contracts/MintSwapPool.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.2;\n\n\nimport \"./lib/utils/math/Math.sol\";\nimport \"./lib/utils/math/SafeMath.sol\";\nimport \"./lib/utils/IMintSwapFactory.sol\";\nimport \"./lib/token/ERC20/utils/SafeERC20.sol\";\n\nimport \"./lib/security/ReentrancyGuard.sol\";\nimport \"./lib/utils/IFlashLoanReceiver.sol\";\n\nimport \"./MintSwapERC20.sol\";\n\ncontract MintSwapPool is ERC20, ReentrancyGuard {\n    using SafeMath for uint;\n    using SafeERC20 for IERC20;\n\n    address public token;\n    address public factory;\n    bool initialized;\n\n    event Mint(address indexed sender, uint amount0, uint amount1);\n    event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);\n    event Swap(\n        address indexed sender,\n        uint amount0In,\n        uint amount1In,\n        uint amount0Out,\n        uint amount1Out,\n        address indexed to\n    );\n    event FlashLoan(\n        address indexed _target,\n        address indexed _reserve,\n        uint256 _amount,\n        uint256 _totalFee,\n        uint256 _protocolFee,\n        uint256 _timestamp\n    );\n\n    modifier ensure(uint deadline) {\n        require(deadline >= block.timestamp, 'MintSwap: EXPIRED');\n        _;\n    }\n\n    constructor() { \n        \n    }\n\n    function initialize(address _token) external {\n        require(!initialized, 'MintSwap: ALREADY_INITIALIZED');\n\n        initialized = true;\n        factory = msg.sender;\n        token = _token;\n    }\n\n    function safeTransferETH(address to, uint256 value) internal {\n        (bool success, ) = to.call{value: value}(new bytes(0));\n        require(success, 'MintSwap: ETH_TXN_FAILED');\n    }\n\n    function getReserves() external view returns(uint _reserve0, uint _reserve1, uint _blockTimestampLast) {\n        return (\n            address(this).balance,\n            IERC20(token).balanceOf(address(this)),\n            block.timestamp\n        );\n    }\n\n    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) internal pure returns (uint amountOut) {\n        require(amountIn > 0, 'MintSwap: INSUFFICIENT_INPUT_AMOUNT');\n        require(reserveIn > 0 && reserveOut > 0, 'MintSwap: INSUFFICIENT_LIQUIDITY');\n        uint amountInWithFee = amountIn.mul(997);\n        uint numerator = amountInWithFee.mul(reserveOut);\n        uint denominator = reserveIn.mul(1000).add(amountInWithFee);\n        amountOut = numerator / denominator;\n    }\n\n    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) internal pure returns (uint amountIn) {\n        require(amountOut > 0, 'MintSwap: INSUFFICIENT_OUTPUT_AMOUNT');\n        require(reserveIn > 0 && reserveOut > 0, 'MintSwap: INSUFFICIENT_LIQUIDITY');\n        uint numerator = reserveIn.mul(amountOut).mul(1000);\n        uint denominator = reserveOut.sub(amountOut).mul(997);\n        amountIn = (numerator / denominator).add(1);\n    }\n\n    function getAmountInETH(uint amount1) external view returns (uint amount0) {\n        uint reserve0 = address(this).balance;\n        uint reserve1 = IERC20(token).balanceOf(address(this));\n        amount0 = getAmountIn(amount1, reserve0, reserve1);\n    }\n\n    function getAmountInTokens(uint amount0) external view returns (uint amount1) {\n        uint reserve0 = address(this).balance;\n        uint reserve1 = IERC20(token).balanceOf(address(this));\n        amount1 = getAmountIn(amount0, reserve1, reserve0);\n    }\n\n    function getAmountOutETH(uint amount1) external view returns (uint amount0) {\n        uint reserve0 = address(this).balance;\n        uint reserve1 = IERC20(token).balanceOf(address(this));\n        amount0 = getAmountOut(amount1, reserve1, reserve0);\n    }\n\n    function getAmountOutTokens(uint amount0) external view returns (uint amount1) {\n        uint reserve0 = address(this).balance;\n        uint reserve1 = IERC20(token).balanceOf(address(this));\n        amount1 = getAmountOut(amount0, reserve0, reserve1);\n    }\n\n    function swapExactETHForTokens(uint amount1min, address to, uint deadline) payable external ensure(deadline) returns (uint amount1) {\n        address _token = token;        // gas savings\n        uint reserve0 = (address(this).balance).sub(msg.value);\n        uint reserve1 = IERC20(_token).balanceOf(address(this));\n        \n        amount1 = getAmountOut(msg.value, reserve0, reserve1);\n        require(amount1min <= amount1, 'MintSwap: SLIPPAGE_REACHED');\n        IERC20(_token).safeTransfer(to, amount1);\n\n        emit Swap(msg.sender, msg.value, 0, 0, amount1, to);\n    }\n    \n    function swapETHForExactTokens(uint amount1, address to, uint deadline) payable external ensure(deadline) returns (uint amount0) {\n        address _token = token;        // gas savings\n        uint reserve0 = (address(this).balance).sub(msg.value);\n        uint reserve1 = IERC20(_token).balanceOf(address(this));\n        \n        amount0 = getAmountIn(amount1, reserve0, reserve1);\n        require(amount0 <= msg.value, 'MintSwap: SLIPPAGE_REACHED');\n        IERC20(_token).safeTransfer(to, amount1);\n\n        if(msg.value > amount0){ safeTransferETH(to, msg.value.sub(amount0)); }\n\n        emit Swap(msg.sender, amount0, 0, 0, amount1, to);\n    }\n\n    function swapExactTokensForETH(uint amount1, uint amount0min, address to, uint deadline) external ensure(deadline) returns (uint amount0) {\n        address _token = token;        // gas savings\n        uint reserve0 = address(this).balance;\n        uint reserve1 = IERC20(_token).balanceOf(address(this));\n        \n        amount0 = getAmountIn(amount1, reserve0, reserve1);\n        require(amount0min <= amount0, 'MintSwap: SLIPPAGE_REACHED');\n        IERC20(_token).safeTransferFrom(msg.sender, address(this), amount1);\n        safeTransferETH(to, amount0);\n\n        emit Swap(msg.sender, 0, amount1, amount0, 0, to);\n    }\n\n    function swapTokensForExactETH(uint amount0, uint amount1max, address to, uint deadline) external ensure(deadline) returns (uint amount1) {\n        address _token = token;        // gas savings\n        uint reserve0 = address(this).balance;\n        uint reserve1 = IERC20(_token).balanceOf(address(this));\n        \n        amount1 = getAmountOut(amount0, reserve0, reserve1);\n        require(amount1 <= amount1max, 'MintSwap: SLIPPAGE_REACHED');\n        IERC20(_token).safeTransferFrom(msg.sender, address(this), amount1);\n        safeTransferETH(to, amount0);\n\n        emit Swap(msg.sender, 0, amount1, amount0, 0, to);\n    }\n\n    function _addExactEthLP(uint amount1min, address from, address to) internal returns (uint lpAmount) {\n        require(msg.value > 0 && amount1min > 0, 'MintSwap: INVALID_AMOUNT');\n        uint amount0 = msg.value;\n        address _token = token;        // gas savings\n        uint reserve0 = (address(this).balance).sub(msg.value);\n        uint reserve1 = IERC20(_token).balanceOf(address(this));\n        uint _totalSupply = totalSupply;\n\n        uint amount1;\n        if(_totalSupply > 0){\n            amount1 = ( msg.value.mul( reserve1 ) ).div(reserve0);\n            require(amount1 >= amount1min, 'MintSwap: SLIPPAGE_REACHED');\n        } \n        else {\n            amount1 = amount1min;\n        }\n\n        IERC20(_token).safeTransferFrom(from, address(this), amount1);\n\n        if (_totalSupply == 0) {\n            lpAmount = Math.sqrt(amount0.mul(amount1)).sub(10**3);\n           _mint(address(0), 10**3);\n        } else {\n            lpAmount = Math.min(amount0.mul(_totalSupply) / reserve0, amount1.mul(_totalSupply) / reserve1);\n        }\n\n        require(lpAmount > 0, 'MintSwap: INSUFFICIENT_LIQUIDITY_MINTED');\n\n        uint _fee = IMintSwapFactory(factory).lpFee();\n        if(_fee > 0){\n            uint _feeAmount = ( lpAmount.mul(_fee) ).div(10**4);\n            _mint(IMintSwapFactory(factory).feeTo(), _feeAmount);\n            lpAmount = lpAmount.sub(_feeAmount);\n        }\n\n        _mint(to, lpAmount);\n\n        emit Mint(from, amount0, amount1);\n    }\n\n    function addExactEthLPfromFactory(uint amount1min, address from, address to, uint deadline) payable external ensure(deadline) returns (uint lpAmount) {\n        require(msg.sender == factory, 'MintSwap: FORBIDDEN');\n        lpAmount = _addExactEthLP(amount1min, from, to);\n    }\n    \n    function addExactEthLP(uint amount1min, address to, uint deadline) payable external ensure(deadline) returns (uint lpAmount) {\n        lpAmount = _addExactEthLP(amount1min, msg.sender, to);\n    }\n\n    function addExactTokensLP(uint amount1, address to, uint deadline) payable external ensure(deadline) returns (uint lpAmount) {\n        require(msg.value > 0 && amount1 > 0, 'MintSwap: INVALID_AMOUNT');\n        address _token = token;        // gas savings\n        uint reserve0 = (address(this).balance).sub(msg.value);\n        uint reserve1 = IERC20(_token).balanceOf(address(this));\n        uint _totalSupply = totalSupply;\n\n        uint amount0;\n        if(_totalSupply > 0){\n            amount0 = ( amount1.mul( reserve0 ) ).div(reserve1);\n            require(amount0 <= msg.value, 'MintSwap: SLIPPAGE_REACHED');\n        } \n        else {\n            amount0 = msg.value;\n        }\n\n        IERC20(_token).safeTransferFrom(msg.sender, address(this), amount1);\n\n        if (_totalSupply == 0) {\n            lpAmount = Math.sqrt(amount0.mul(amount1)).sub(10**3);\n           _mint(address(0), 10**3);\n        } else {\n            lpAmount = Math.min(amount0.mul(_totalSupply) / reserve0, amount1.mul(_totalSupply) / reserve1);\n        }\n\n        require(lpAmount > 0, 'MintSwap: INSUFFICIENT_LIQUIDITY_MINTED');\n\n        if(msg.value > amount0){\n            safeTransferETH(to, msg.value.sub(amount0));\n        }\n\n        uint _fee = IMintSwapFactory(factory).lpFee();\n        if(_fee > 0){\n            uint _feeAmount = ( lpAmount.mul(_fee) ).div(10**4);\n            _mint(IMintSwapFactory(factory).feeTo(), _feeAmount);\n            lpAmount = lpAmount.sub(_feeAmount);\n        }\n\n        _mint(to, lpAmount);\n\n        emit Mint(msg.sender, amount0, amount1);\n    }\n\n    function removeLiquidity(uint lpAmount, address to, uint deadline) external ensure(deadline) returns (uint amount0, uint amount1) {\n        require(lpAmount > 0, 'MintSwap: INSUFFICIENT_LIQUIDITY');\n        address _token = token;        // gas savings\n\n        uint reserve0 = address(this).balance;\n        uint reserve1 = IERC20(_token).balanceOf(address(this));\n\n        uint _totalSupply = totalSupply; \n        amount0 = lpAmount.mul(reserve0) / _totalSupply; \n        amount1 = lpAmount.mul(reserve1) / _totalSupply; \n        require(amount0 > 0 && amount1 > 0, 'MintSwap: INSUFFICIENT_LIQUIDITY_BURNED');\n\n        _burn(msg.sender, lpAmount);\n\n        IERC20(_token).safeTransfer(to, amount1);\n        safeTransferETH(to, amount0);\n\n        emit Burn(msg.sender, amount0, amount1, to);\n    }\n\n    function transferFlashLoanProtocolFeeInternal(address _token, uint256 _amount, bool isEth) internal {\n        address distributorAddress = IMintSwapFactory(factory).feeTo();\n        if (isEth) {\n            safeTransferETH(distributorAddress, _amount);\n        } else {\n            IERC20(_token).safeTransfer(distributorAddress, _amount);\n        }\n    }\n    \n    function flashLoan(address _receiver, bool _takeEth, uint _amount, bytes calldata _params) external nonReentrant {\n        require(_amount > 0, \"Amount must be greater than 0\");\n        address _token = token;        // gas savings\n\n        //check that the reserve has enough available liquidity\n        uint256 availableLiquidityBefore = _takeEth\n            ? address(this).balance\n            : IERC20(_token).balanceOf(address(this));\n\n        require(\n            availableLiquidityBefore >= _amount,\n            \"There is not enough liquidity available to borrow\"\n        );\n\n        (uint256 totalFeeBips, uint256 protocolFeeBips) = IMintSwapFactory(factory).getFlashLoanFeesInBips();\n        //calculate amount fee\n        uint256 amountFee = _amount.mul(totalFeeBips).div(10000);\n        //protocol fee is the part of the amountFee reserved for the protocol - the rest goes to depositors\n        uint256 protocolFee = amountFee.mul(protocolFeeBips).div(10000);\n        require(\n            amountFee > 0 && protocolFee > 0,\n            \"The requested amount is too small for a flashLoan.\"\n        );\n        \n        //transfer funds to the receiver\n        if (_takeEth) {\n            safeTransferETH(_receiver, _amount);\n        } else {\n            IERC20(_token).safeTransfer(_receiver, _amount);\n        }\n\n        //execute action of the receiver\n        IFlashLoanReceiver(_receiver).executeOperation(_token, _amount, amountFee, _params);\n\n        //check that the actual balance of the core contract includes the returned amount\n        uint256 availableLiquidityAfter = _takeEth\n            ? address(this).balance\n            : IERC20(_token).balanceOf(address(this));\n\n        require(\n            availableLiquidityAfter == availableLiquidityBefore.add(amountFee),\n            \"The actual balance of the protocol is inconsistent\"\n        );\n        \n        transferFlashLoanProtocolFeeInternal(_token, protocolFee, _takeEth);\n\n        //solium-disable-next-line\n        emit FlashLoan(_receiver, _token, _amount, amountFee, protocolFee, block.timestamp);\n    }\n}"
      },
      "/contracts/lib/utils/math/SafeMath.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n// CAUTION\n// This version of SafeMath should only be used with Solidity 0.8 or later,\n// because it relies on the compiler's built in overflow checks.\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations.\n *\n * NOTE: `SafeMath` is no longer needed starting with Solidity 0.8. The compiler\n * now has built in overflow checking.\n */\nlibrary SafeMath {\n    /**\n     * @dev Returns the addition of two unsigned integers, with an overflow flag.\n     *\n     * _Available since v3.4._\n     */\n    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n        unchecked {\n            uint256 c = a + b;\n            if (c < a) return (false, 0);\n            return (true, c);\n        }\n    }\n\n    /**\n     * @dev Returns the substraction of two unsigned integers, with an overflow flag.\n     *\n     * _Available since v3.4._\n     */\n    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n        unchecked {\n            if (b > a) return (false, 0);\n            return (true, a - b);\n        }\n    }\n\n    /**\n     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.\n     *\n     * _Available since v3.4._\n     */\n    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n        unchecked {\n            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n            // benefit is lost if 'b' is also tested.\n            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n            if (a == 0) return (true, 0);\n            uint256 c = a * b;\n            if (c / a != b) return (false, 0);\n            return (true, c);\n        }\n    }\n\n    /**\n     * @dev Returns the division of two unsigned integers, with a division by zero flag.\n     *\n     * _Available since v3.4._\n     */\n    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n        unchecked {\n            if (b == 0) return (false, 0);\n            return (true, a / b);\n        }\n    }\n\n    /**\n     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.\n     *\n     * _Available since v3.4._\n     */\n    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n        unchecked {\n            if (b == 0) return (false, 0);\n            return (true, a % b);\n        }\n    }\n\n    /**\n     * @dev Returns the addition of two unsigned integers, reverting on\n     * overflow.\n     *\n     * Counterpart to Solidity's `+` operator.\n     *\n     * Requirements:\n     *\n     * - Addition cannot overflow.\n     */\n    function add(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a + b;\n    }\n\n    /**\n     * @dev Returns the subtraction of two unsigned integers, reverting on\n     * overflow (when the result is negative).\n     *\n     * Counterpart to Solidity's `-` operator.\n     *\n     * Requirements:\n     *\n     * - Subtraction cannot overflow.\n     */\n    function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a - b;\n    }\n\n    /**\n     * @dev Returns the multiplication of two unsigned integers, reverting on\n     * overflow.\n     *\n     * Counterpart to Solidity's `*` operator.\n     *\n     * Requirements:\n     *\n     * - Multiplication cannot overflow.\n     */\n    function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a * b;\n    }\n\n    /**\n     * @dev Returns the integer division of two unsigned integers, reverting on\n     * division by zero. The result is rounded towards zero.\n     *\n     * Counterpart to Solidity's `/` operator.\n     *\n     * Requirements:\n     *\n     * - The divisor cannot be zero.\n     */\n    function div(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a / b;\n    }\n\n    /**\n     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n     * reverting when dividing by zero.\n     *\n     * Counterpart to Solidity's `%` operator. This function uses a `revert`\n     * opcode (which leaves remaining gas untouched) while Solidity uses an\n     * invalid opcode to revert (consuming all remaining gas).\n     *\n     * Requirements:\n     *\n     * - The divisor cannot be zero.\n     */\n    function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a % b;\n    }\n\n    /**\n     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n     * overflow (when the result is negative).\n     *\n     * CAUTION: This function is deprecated because it requires allocating memory for the error\n     * message unnecessarily. For custom revert reasons use {trySub}.\n     *\n     * Counterpart to Solidity's `-` operator.\n     *\n     * Requirements:\n     *\n     * - Subtraction cannot overflow.\n     */\n    function sub(\n        uint256 a,\n        uint256 b,\n        string memory errorMessage\n    ) internal pure returns (uint256) {\n        unchecked {\n            require(b <= a, errorMessage);\n            return a - b;\n        }\n    }\n\n    /**\n     * @dev Returns the integer division of two unsigned integers, reverting with custom message on\n     * division by zero. The result is rounded towards zero.\n     *\n     * Counterpart to Solidity's `/` operator. Note: this function uses a\n     * `revert` opcode (which leaves remaining gas untouched) while Solidity\n     * uses an invalid opcode to revert (consuming all remaining gas).\n     *\n     * Requirements:\n     *\n     * - The divisor cannot be zero.\n     */\n    function div(\n        uint256 a,\n        uint256 b,\n        string memory errorMessage\n    ) internal pure returns (uint256) {\n        unchecked {\n            require(b > 0, errorMessage);\n            return a / b;\n        }\n    }\n\n    /**\n     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n     * reverting with custom message when dividing by zero.\n     *\n     * CAUTION: This function is deprecated because it requires allocating memory for the error\n     * message unnecessarily. For custom revert reasons use {tryMod}.\n     *\n     * Counterpart to Solidity's `%` operator. This function uses a `revert`\n     * opcode (which leaves remaining gas untouched) while Solidity uses an\n     * invalid opcode to revert (consuming all remaining gas).\n     *\n     * Requirements:\n     *\n     * - The divisor cannot be zero.\n     */\n    function mod(\n        uint256 a,\n        uint256 b,\n        string memory errorMessage\n    ) internal pure returns (uint256) {\n        unchecked {\n            require(b > 0, errorMessage);\n            return a % b;\n        }\n    }\n}\n"
      },
      "/contracts/lib/utils/math/Math.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Standard math utilities missing in the Solidity language.\n */\nlibrary Math {\n    /**\n     * @dev Returns the largest of two numbers.\n     */\n    function max(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a >= b ? a : b;\n    }\n\n    /**\n     * @dev Returns the smallest of two numbers.\n     */\n    function min(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a < b ? a : b;\n    }\n\n    /**\n     * @dev Returns the average of two numbers. The result is rounded towards\n     * zero.\n     */\n    function average(uint256 a, uint256 b) internal pure returns (uint256) {\n        // (a + b) / 2 can overflow.\n        return (a & b) + (a ^ b) / 2;\n    }\n\n    /**\n     * @dev Returns the ceiling of the division of two numbers.\n     *\n     * This differs from standard division with `/` in that it rounds up instead\n     * of rounding down.\n     */\n    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n        // (a + b - 1) / b can overflow on addition, so we distribute.\n        return a / b + (a % b == 0 ? 0 : 1);\n    }\n\n    // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)\n    function sqrt(uint y) internal pure returns (uint z) {\n        if (y > 3) {\n            z = y;\n            uint x = y / 2 + 1;\n            while (x < z) {\n                z = x;\n                x = (y / x + x) / 2;\n            }\n        } else if (y != 0) {\n            z = 1;\n        }\n    }\n}\n"
      },
      "/contracts/lib/utils/IMintSwapFactory.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\ninterface IMintSwapFactory {\n    function lpFee() external returns (uint);\n    function feeTo() external returns (address);\n    function getFlashLoanFeesInBips() external returns (uint, uint);\n    function totalPairs() external view returns (uint);\n    function getPair(address tokenAddress) external view returns (address pair);\n\n    function createPair(address tokenAddress) external returns (address pair);\n    function createPairWithAddExactEthLP(address tokenAddress, uint tokenAmountMin, address to, uint deadline) payable external returns (address pair, uint lpAmount);\n\n    event lpFeeUpdated(uint previousFee, uint newFee);\n    event PairCreated(address indexed tokenAddress, address pair, uint);\n    event flashLoanFeeUpdated(uint flashloan_fee_total, uint flashloan_fee_protocol);\n}"
      },
      "/contracts/lib/utils/IFlashLoanReceiver.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.2;\n\n/**\n* @title IFlashLoanReceiver interface\n* @notice Interface for IFlashLoanReceiver.\n* @dev implement this interface to develop a flashloan-compatible flashLoanReceiver contract\n**/\ninterface IFlashLoanReceiver {\n    function executeOperation(address _reserve, uint256 _amount, uint256 _fee, bytes calldata _params) external;\n}"
      },
      "/contracts/lib/utils/Address.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n    /**\n     * @dev Returns true if `account` is a contract.\n     *\n     * [IMPORTANT]\n     * ====\n     * It is unsafe to assume that an address for which this function returns\n     * false is an externally-owned account (EOA) and not a contract.\n     *\n     * Among others, `isContract` will return false for the following\n     * types of addresses:\n     *\n     *  - an externally-owned account\n     *  - a contract in construction\n     *  - an address where a contract will be created\n     *  - an address where a contract lived, but was destroyed\n     * ====\n     */\n    function isContract(address account) internal view returns (bool) {\n        // This method relies on extcodesize, which returns 0 for contracts in\n        // construction, since the code is only stored at the end of the\n        // constructor execution.\n\n        uint256 size;\n        assembly {\n            size := extcodesize(account)\n        }\n        return size > 0;\n    }\n\n    /**\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n     * `recipient`, forwarding all available gas and reverting on errors.\n     *\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\n     * imposed by `transfer`, making them unable to receive funds via\n     * `transfer`. {sendValue} removes this limitation.\n     *\n     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n     *\n     * IMPORTANT: because control is transferred to `recipient`, care must be\n     * taken to not create reentrancy vulnerabilities. Consider using\n     * {ReentrancyGuard} or the\n     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n     */\n    function sendValue(address payable recipient, uint256 amount) internal {\n        require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n        (bool success, ) = recipient.call{value: amount}(\"\");\n        require(success, \"Address: unable to send value, recipient may have reverted\");\n    }\n\n    /**\n     * @dev Performs a Solidity function call using a low level `call`. A\n     * plain `call` is an unsafe replacement for a function call: use this\n     * function instead.\n     *\n     * If `target` reverts with a revert reason, it is bubbled up by this\n     * function (like regular Solidity function calls).\n     *\n     * Returns the raw returned data. To convert to the expected return value,\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n     *\n     * Requirements:\n     *\n     * - `target` must be a contract.\n     * - calling `target` with `data` must not revert.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionCall(target, data, \"Address: low-level call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n     * `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but also transferring `value` wei to `target`.\n     *\n     * Requirements:\n     *\n     * - the calling contract must have an ETH balance of at least `value`.\n     * - the called Solidity function must be `payable`.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(address(this).balance >= value, \"Address: insufficient balance for call\");\n        require(isContract(target), \"Address: call to non-contract\");\n\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\n        return verifyCallResult(success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n        return functionStaticCall(target, data, \"Address: low-level static call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        require(isContract(target), \"Address: static call to non-contract\");\n\n        (bool success, bytes memory returndata) = target.staticcall(data);\n        return verifyCallResult(success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(isContract(target), \"Address: delegate call to non-contract\");\n\n        (bool success, bytes memory returndata) = target.delegatecall(data);\n        return verifyCallResult(success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n     * revert reason using the provided one.\n     *\n     * _Available since v4.3._\n     */\n    function verifyCallResult(\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal pure returns (bytes memory) {\n        if (success) {\n            return returndata;\n        } else {\n            // Look for revert reason and bubble it up if present\n            if (returndata.length > 0) {\n                // The easiest way to bubble the revert reason is using memory via assembly\n\n                assembly {\n                    let returndata_size := mload(returndata)\n                    revert(add(32, returndata), returndata_size)\n                }\n            } else {\n                revert(errorMessage);\n            }\n        }\n    }\n}\n"
      },
      "/contracts/lib/token/ERC20/utils/SafeERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\nimport \"../../../utils/Address.sol\";\n\n/**\n * @title SafeERC20\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\n * contract returns false). Tokens that return no value (and instead revert or\n * throw on failure) are also supported, non-reverting calls are assumed to be\n * successful.\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\n */\nlibrary SafeERC20 {\n    using Address for address;\n\n    function safeTransfer(\n        IERC20 token,\n        address to,\n        uint256 value\n    ) internal {\n        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\n    }\n\n    function safeTransferFrom(\n        IERC20 token,\n        address from,\n        address to,\n        uint256 value\n    ) internal {\n        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\n    }\n\n    /**\n     * @dev Deprecated. This function has issues similar to the ones found in\n     * {IERC20-approve}, and its usage is discouraged.\n     *\n     * Whenever possible, use {safeIncreaseAllowance} and\n     * {safeDecreaseAllowance} instead.\n     */\n    function safeApprove(\n        IERC20 token,\n        address spender,\n        uint256 value\n    ) internal {\n        // safeApprove should only be called when setting an initial allowance,\n        // or when resetting it to zero. To increase and decrease it, use\n        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\n        require(\n            (value == 0) || (token.allowance(address(this), spender) == 0),\n            \"SafeERC20: approve from non-zero to non-zero allowance\"\n        );\n        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\n    }\n\n    function safeIncreaseAllowance(\n        IERC20 token,\n        address spender,\n        uint256 value\n    ) internal {\n        uint256 newAllowance = token.allowance(address(this), spender) + value;\n        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n    }\n\n    function safeDecreaseAllowance(\n        IERC20 token,\n        address spender,\n        uint256 value\n    ) internal {\n        unchecked {\n            uint256 oldAllowance = token.allowance(address(this), spender);\n            require(oldAllowance >= value, \"SafeERC20: decreased allowance below zero\");\n            uint256 newAllowance = oldAllowance - value;\n            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n        }\n    }\n\n    /**\n     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n     * on the return value: the return value is optional (but if data is returned, it must not be false).\n     * @param token The token targeted by the call.\n     * @param data The call data (encoded using abi.encode or one of its variants).\n     */\n    function _callOptionalReturn(IERC20 token, bytes memory data) private {\n        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that\n        // the target address contains contract code and also asserts for success in the low-level call.\n\n        bytes memory returndata = address(token).functionCall(data, \"SafeERC20: low-level call failed\");\n        if (returndata.length > 0) {\n            // Return data is optional\n            require(abi.decode(returndata, (bool)), \"SafeERC20: ERC20 operation did not succeed\");\n        }\n    }\n}\n"
      },
      "/contracts/lib/token/ERC20/IERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n    /**\n     * @dev Returns the amount of tokens in existence.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns the amount of tokens owned by `account`.\n     */\n    function balanceOf(address account) external view returns (uint256);\n\n    /**\n     * @dev Moves `amount` tokens from the caller's account to `recipient`.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transfer(address recipient, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Returns the remaining number of tokens that `spender` will be\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\n     * zero by default.\n     *\n     * This value changes when {approve} or {transferFrom} are called.\n     */\n    function allowance(address owner, address spender) external view returns (uint256);\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\n     * that someone may use both the old and the new allowance by unfortunate\n     * transaction ordering. One possible solution to mitigate this race\n     * condition is to first reduce the spender's allowance to 0 and set the\n     * desired value afterwards:\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address spender, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Moves `amount` tokens from `sender` to `recipient` using the\n     * allowance mechanism. `amount` is then deducted from the caller's\n     * allowance.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(\n        address sender,\n        address recipient,\n        uint256 amount\n    ) external returns (bool);\n\n    /**\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\n     * another (`to`).\n     *\n     * Note that `value` may be zero.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 value);\n\n    /**\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n     * a call to {approve}. `value` is the new allowance.\n     */\n    event Approval(address indexed owner, address indexed spender, uint256 value);\n}\n"
      },
      "/contracts/lib/security/ReentrancyGuard.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Contract module that helps prevent reentrant calls to a function.\n *\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\n * available, which can be applied to functions to make sure there are no nested\n * (reentrant) calls to them.\n *\n * Note that because there is a single `nonReentrant` guard, functions marked as\n * `nonReentrant` may not call one another. This can be worked around by making\n * those functions `private`, and then adding `external` `nonReentrant` entry\n * points to them.\n *\n * TIP: If you would like to learn more about reentrancy and alternative ways\n * to protect against it, check out our blog post\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\n */\nabstract contract ReentrancyGuard {\n    // Booleans are more expensive than uint256 or any type that takes up a full\n    // word because each write operation emits an extra SLOAD to first read the\n    // slot's contents, replace the bits taken up by the boolean, and then write\n    // back. This is the compiler's defense against contract upgrades and\n    // pointer aliasing, and it cannot be disabled.\n\n    // The values being non-zero value makes deployment a bit more expensive,\n    // but in exchange the refund on every call to nonReentrant will be lower in\n    // amount. Since refunds are capped to a percentage of the total\n    // transaction's gas, it is best to keep them low in cases like this one, to\n    // increase the likelihood of the full refund coming into effect.\n    uint256 private constant _NOT_ENTERED = 1;\n    uint256 private constant _ENTERED = 2;\n\n    uint256 private _status;\n\n    constructor() {\n        _status = _NOT_ENTERED;\n    }\n\n    /**\n     * @dev Prevents a contract from calling itself, directly or indirectly.\n     * Calling a `nonReentrant` function from another `nonReentrant`\n     * function is not supported. It is possible to prevent this from happening\n     * by making the `nonReentrant` function external, and making it call a\n     * `private` function that does the actual work.\n     */\n    modifier nonReentrant() {\n        // On the first call to nonReentrant, _notEntered will be true\n        require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n        // Any calls to nonReentrant after this point will fail\n        _status = _ENTERED;\n\n        _;\n\n        // By storing the original value once again, a refund is triggered (see\n        // https://eips.ethereum.org/EIPS/eip-2200)\n        _status = _NOT_ENTERED;\n    }\n}\n"
      },
      "/contracts/MintSwapERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.2;\n\n\nimport \"./lib/utils/math/SafeMath.sol\";\n\n\ncontract ERC20 {\n    using SafeMath for uint;\n\n    string public constant name = 'MintSwap LP V1';\n    string public constant symbol = 'MSWAP-LP1';\n    uint8 public constant decimals = 18;\n    uint  public totalSupply;\n    mapping(address => uint) public balanceOf;\n    mapping(address => mapping(address => uint)) public allowance;\n\n    event Approval(address indexed owner, address indexed spender, uint value);\n    event Transfer(address indexed from, address indexed to, uint value);\n\n    constructor() {}\n\n    function _mint(address to, uint value) internal {\n        totalSupply = totalSupply.add(value);\n        balanceOf[to] = balanceOf[to].add(value);\n        emit Transfer(address(0), to, value);\n    }\n\n    function _burn(address from, uint value) internal {\n        balanceOf[from] = balanceOf[from].sub(value, 'MintSwap: INSUFFICIENT_BALANCE');\n        totalSupply = totalSupply.sub(value);\n        emit Transfer(from, address(0), value);\n    }\n\n    function _approve(address owner, address spender, uint value) private {\n        allowance[owner][spender] = value;\n        emit Approval(owner, spender, value);\n    }\n\n    function _transfer(address from, address to, uint value) private {\n        balanceOf[from] = balanceOf[from].sub(value, 'MintSwap: INSUFFICIENT_BALANCE');\n        balanceOf[to] = balanceOf[to].add(value);\n        emit Transfer(from, to, value);\n    }\n\n    function approve(address spender, uint value) external returns (bool) {\n        _approve(msg.sender, spender, value);\n        return true;\n    }\n\n    function transfer(address to, uint value) external returns (bool) {\n        _transfer(msg.sender, to, value);\n        return true;\n    }\n\n    function transferFrom(address from, address to, uint value) external returns (bool) {\n        if (allowance[from][msg.sender] != type(uint).max) {\n            allowance[from][msg.sender] = allowance[from][msg.sender].sub(value, 'MintSwap: INSUFFICIENT_ALLOWANCE');\n        }\n        _transfer(from, to, value);\n        return true;\n    }\n}"
      }
    },
    "settings": {
      "remappings": [],
      "optimizer": {
        "enabled": true,
        "runs": 200
      },
      "evmVersion": "istanbul",
      "libraries": {},
      "outputSelection": {
        "*": {
          "*": [
            "evm.bytecode",
            "evm.deployedBytecode",
            "devdoc",
            "userdoc",
            "metadata",
            "abi"
          ]
        }
      }
    }
  }}