{
    "Function": "placeMarketMakingTrades",
    "File": "contracts/rubiconPools/BathPair.sol",
    "Parent Contracts": [],
    "High-Level Calls": [
        "IBathToken",
        "IBathToken"
    ],
    "Internal Calls": [
        "require(bool,string)",
        "enforceReserveRatio",
        "onlyApprovedStrategist",
        "require(bool,string)",
        "_next_id"
    ],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "function placeMarketMakingTrades(\n        address[2] memory tokenPair, // ASSET, Then Quote\n        uint256 askNumerator, // Quote / Asset\n        uint256 askDenominator, // Asset / Quote\n        uint256 bidNumerator, // size in ASSET\n        uint256 bidDenominator // size in QUOTES\n    ) public onlyApprovedStrategist(msg.sender) returns (uint256 id) {\n        // Require at least one order is non-zero\n        require(\n            (askNumerator > 0 && askDenominator > 0) ||\n                (bidNumerator > 0 && bidDenominator > 0),\n            \"one order must be non-zero\"\n        );\n\n        address _underlyingAsset = tokenPair[0];\n        address _underlyingQuote = tokenPair[1];\n\n        (\n            address bathAssetAddress,\n            address bathQuoteAddress\n        ) = enforceReserveRatio(_underlyingAsset, _underlyingQuote);\n\n        require(\n            bathAssetAddress != address(0) && bathQuoteAddress != address(0),\n            \"tokenToBathToken error\"\n        );\n\n        // Calculate new bid and/or ask\n        order memory ask = order(\n            askNumerator,\n            IERC20(_underlyingAsset),\n            askDenominator,\n            IERC20(_underlyingQuote)\n        );\n        order memory bid = order(\n            bidNumerator,\n            IERC20(_underlyingQuote),\n            bidDenominator,\n            IERC20(_underlyingAsset)\n        );\n\n        // Place new bid and/or ask\n        // Note: placeOffer returns a zero if an incomplete order\n        uint256 newAskID = IBathToken(bathAssetAddress).placeOffer(\n            ask.pay_amt,\n            ask.pay_gem,\n            ask.buy_amt,\n            ask.buy_gem\n        );\n\n        uint256 newBidID = IBathToken(bathQuoteAddress).placeOffer(\n            bid.pay_amt,\n            bid.pay_gem,\n            bid.buy_amt,\n            bid.buy_gem\n        );\n\n        // Strategist trade is recorded so they can get paid and the trade is logged for time\n        StrategistTrade memory outgoing = StrategistTrade(\n            newAskID,\n            ask.pay_amt,\n            _underlyingAsset,\n            newBidID,\n            bid.pay_amt,\n            _underlyingQuote,\n            msg.sender,\n            block.timestamp\n        );\n\n        // Give each trade a unique id for easy handling by strategists\n        id = _next_id();\n        strategistTrades[id] = outgoing;\n        // Allow strategists to easily call a list of their outstanding offers\n        outOffersByStrategist[_underlyingAsset][_underlyingQuote][msg.sender]\n            .push(id);\n\n        emit LogStrategistTrade(\n            id,\n            bytes32(outgoing.askId),\n            bytes32(outgoing.bidId),\n            outgoing.askAsset,\n            outgoing.bidAsset,\n            block.timestamp,\n            outgoing.strategist\n        );\n    }"
}