{
    "Function": "swap",
    "File": "src/transformers/V3Utils.sol",
    "Parent Contracts": [
        "lib/openzeppelin-contracts/contracts/token/ERC721/IERC721Receiver.sol",
        "src/utils/Swapper.sol",
        "src/interfaces/IErrors.sol",
        "lib/v3-core/contracts/interfaces/callback/IUniswapV3SwapCallback.sol"
    ],
    "High-Level Calls": [],
    "Internal Calls": [
        "_prepareAddPermit2",
        "_prepareAddApproved",
        "_transferToken",
        "abi.decode()",
        "revert SameToken()",
        "_transferToken",
        "_routerSwap"
    ],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "function swap(SwapParams calldata params) external payable returns (uint256 amountOut) {\n        if (params.tokenIn == params.tokenOut) {\n            revert SameToken();\n        }\n\n        if (params.permitData.length > 0) {\n            (ISignatureTransfer.PermitBatchTransferFrom memory pbtf, bytes memory signature) =\n                abi.decode(params.permitData, (ISignatureTransfer.PermitBatchTransferFrom, bytes));\n            _prepareAddPermit2(\n                params.tokenIn, IERC20(address(0)), IERC20(address(0)), params.amountIn, 0, 0, pbtf, signature\n            );\n        } else {\n            _prepareAddApproved(params.tokenIn, IERC20(address(0)), IERC20(address(0)), params.amountIn, 0, 0);\n        }\n\n        uint256 amountInDelta;\n        (amountInDelta, amountOut) = _routerSwap(\n            Swapper.RouterSwapParams(\n                params.tokenIn, params.tokenOut, params.amountIn, params.minAmountOut, params.swapData\n            )\n        );\n\n        // send swapped amount of tokenOut\n        if (amountOut != 0) {\n            _transferToken(params.recipient, params.tokenOut, amountOut, params.unwrap);\n        }\n\n        // if not all was swapped - return leftovers of tokenIn\n        uint256 leftOver = params.amountIn - amountInDelta;\n        if (leftOver != 0) {\n            _transferToken(params.recipient, params.tokenIn, leftOver, params.unwrap);\n        }\n    }"
}