Contract Source Code (Solidity Standard Json-Input format)

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// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity ^0.8.19;

/// @notice NANI SWAP FEELESS WIN
/// @author z0r0z.eth for NANI LP
/// @dev Always ensure protection
contract NSFW {
    address constant NANI = 0x00000000000007C8612bA63Df8DdEfD9E6077c97;
    address constant WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
    address constant LP = 0x58Cf91C080F7052f6dA209BF605D6Cf1cefD65F3;

    uint160 constant MAX_SQRT_RATIO_MINUS_ONE = 1461446703485210103287273052203988822378723970341;

    constructor() payable {}

    error InsufficientOut();

    function swap(address to, uint256 minOut) public payable {
        (int256 amount0,) =
            ISwap(LP).swap(to, false, int256(msg.value), MAX_SQRT_RATIO_MINUS_ONE, "");
        if (uint256(-(amount0)) < minOut) revert InsufficientOut();
    }

    fallback() external payable {
        assembly ("memory-safe") {
            let amount1Delta := calldataload(0x24)
            pop(call(gas(), WETH, amount1Delta, codesize(), 0x00, codesize(), 0x00))
            mstore(0x00, 0xa9059cbb000000000000000000000000)
            mstore(0x14, LP)
            mstore(0x34, amount1Delta)
            pop(call(gas(), WETH, 0, 0x10, 0x44, codesize(), 0x00))
        }
    }

    receive() external payable {
        ISwap(LP).swap(msg.sender, false, int256(msg.value), MAX_SQRT_RATIO_MINUS_ONE, "");
    }
}

interface ISwap {
    function swap(address, bool, int256, uint160, bytes calldata)
        external
        returns (int256, int256);
}

{
  "remappings": [
    "@solady/=lib/solady/",
    "@forge/=lib/forge-std/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 9999999
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "cancun",
  "viaIR": false,
  "libraries": {}
}

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[{"inputs":[],"stateMutability":"payable","type":"constructor"},{"inputs":[],"name":"InsufficientOut","type":"error"},{"stateMutability":"payable","type":"fallback"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"minOut","type":"uint256"}],"name":"swap","outputs":[],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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