{
    "Function": "removeLiquidity",
    "File": "contracts/AMM.sol",
    "Parent Contracts": [
        "contracts/legos/Governable.sol",
        "node_modules/@openzeppelin/contracts/proxy/utils/Initializable.sol",
        "contracts/legos/Governable.sol",
        "contracts/Interfaces.sol"
    ],
    "High-Level Calls": [
        "SafeCast",
        "SafeCast",
        "IVAMM",
        "SafeCast"
    ],
    "Internal Calls": [
        "getCloseQuote",
        "_getPnlWhileReducingPosition",
        "_blockTimestamp",
        "onlyClearingHouse"
    ],
    "Library Calls": [
        "toUint256",
        "toUint256",
        "toInt256"
    ],
    "Low-Level Calls": [],
    "Code": "function removeLiquidity(address maker, uint amount, uint minQuote, uint minBase)\n        override\n        external\n        onlyClearingHouse\n        returns (int256 /* realizedPnl */, uint /* quoteAsset */)\n    {\n        Maker memory _maker = makers[maker];\n        if (_maker.dToken == 0) {\n            return (0,0);\n        }\n\n        Position memory _taker = positions[maker];\n        // amount <= _maker.dToken will be asserted when updating maker.dToken\n        (\n            int256 makerPosition,\n            uint256 totalOpenNotional,\n            int256 feeAdjustedPnl,\n            uint[2] memory dBalances\n        ) = vamm.remove_liquidity(\n            amount,\n            [minQuote /* minimum QuoteAsset amount */, minBase /* minimum BaseAsset amount */],\n            _maker.vUSD,\n            _maker.vAsset,\n            _maker.dToken,\n            _taker.size,\n            _taker.openNotional\n        );\n\n        {\n            // update maker info\n            Maker storage __maker = makers[maker];\n            uint diff = _maker.dToken - amount;\n\n            if (diff == 0) {\n                __maker.pos = 0;\n                __maker.vAsset = 0;\n                __maker.vUSD = 0;\n                __maker.dToken = 0;\n            } else {\n                // muitiply by diff because a taker position will also be opened while removing liquidity and its funding payment is calculated seperately\n                __maker.pos = _maker.pos + (posAccumulator - _maker.posAccumulator) * diff.toInt256() / 1e18;\n                __maker.vAsset = _maker.vAsset * diff / _maker.dToken;\n                __maker.vUSD = _maker.vUSD * diff / _maker.dToken;\n                __maker.dToken = diff;\n            }\n            __maker.posAccumulator = posAccumulator;\n        }\n\n        int256 realizedPnl = feeAdjustedPnl;\n        {\n            if (makerPosition != 0) {\n                // translate impermanent position to a permanent one\n                Position storage position = positions[maker];\n                if (makerPosition * position.size < 0) { // reducing or reversing position\n                    uint newNotional = getCloseQuote(position.size + makerPosition);\n                    int256 reducePositionPnl = _getPnlWhileReducingPosition(position.size, position.openNotional, makerPosition, newNotional);\n                    realizedPnl += reducePositionPnl;\n                }\n                position.openNotional = totalOpenNotional;\n                position.size += makerPosition;\n\n                // update long and short open interest notional\n                if (makerPosition > 0) {\n                    longOpenInterestNotional += makerPosition.toUint256();\n                } else {\n                    shortOpenInterestNotional += (-makerPosition).toUint256();\n                }\n            }\n        }\n\n        emit LiquidityRemoved(maker, amount, dBalances[1] /** baseAsset */,\n            dBalances[0] /** quoteAsset */, _blockTimestamp(), realizedPnl);\n        return (realizedPnl, dBalances[0]);\n    }"
}