{
    "Function": "_prepareAddPermit2",
    "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": [
        "IERC20",
        "IERC20",
        "IPermit2",
        "IERC20",
        "IERC20",
        "IERC20",
        "IERC20"
    ],
    "Internal Calls": [
        "revert TransferError()",
        "_prepareAdd",
        "revert TransferError()",
        "revert TransferError()"
    ],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "function _prepareAddPermit2(\n        IERC20 token0,\n        IERC20 token1,\n        IERC20 otherToken,\n        uint256 amount0,\n        uint256 amount1,\n        uint256 amountOther,\n        IPermit2.PermitBatchTransferFrom memory permit,\n        bytes memory signature\n    ) internal {\n        PrepareAddPermit2State memory state;\n\n        (state.needed0, state.needed1, state.neededOther) =\n            _prepareAdd(token0, token1, otherToken, amount0, amount1, amountOther);\n\n        ISignatureTransfer.SignatureTransferDetails[] memory transferDetails =\n            new ISignatureTransfer.SignatureTransferDetails[](permit.permitted.length);\n\n        // permitted tokens must be in this same order\n        if (state.needed0 > 0) {\n            state.balanceBefore0 = token0.balanceOf(address(this));\n            transferDetails[state.i++] = ISignatureTransfer.SignatureTransferDetails(address(this), state.needed0);\n        }\n        if (state.needed1 > 0) {\n            state.balanceBefore1 = token1.balanceOf(address(this));\n            transferDetails[state.i++] = ISignatureTransfer.SignatureTransferDetails(address(this), state.needed1);\n        }\n        if (state.neededOther > 0) {\n            state.balanceBeforeOther = otherToken.balanceOf(address(this));\n            transferDetails[state.i++] = ISignatureTransfer.SignatureTransferDetails(address(this), state.neededOther);\n        }\n\n        // execute batch transfer\n        permit2.permitTransferFrom(permit, transferDetails, msg.sender, signature);\n\n        // check if recieved correct amount of tokens\n        if (state.needed0 > 0) {\n            if (token0.balanceOf(address(this)) - state.balanceBefore0 != state.needed0) {\n                revert TransferError(); // reverts for fee-on-transfer tokens\n            }\n        }\n        if (state.needed1 > 0) {\n            if (token1.balanceOf(address(this)) - state.balanceBefore1 != state.needed1) {\n                revert TransferError(); // reverts for fee-on-transfer tokens\n            }\n        }\n        if (state.neededOther > 0) {\n            if (otherToken.balanceOf(address(this)) - state.balanceBeforeOther != state.neededOther) {\n                revert TransferError(); // reverts for fee-on-transfer tokens\n            }\n        }\n    }"
}