{
    "Function": "buyAllAmountWithETH",
    "File": "contracts/RubiconRouter.sol",
    "Parent Contracts": [],
    "High-Level Calls": [
        "WETH9",
        "SafeMath",
        "ERC20",
        "SafeMath",
        "ERC20",
        "WETH9",
        "SafeMath",
        "ERC20",
        "RubiconMarket"
    ],
    "Internal Calls": [
        "require(bool,string)"
    ],
    "Library Calls": [
        "mul",
        "add",
        "div"
    ],
    "Low-Level Calls": [],
    "Code": "function buyAllAmountWithETH(\n        ERC20 buy_gem,\n        uint256 buy_amt,\n        uint256 max_fill_amount,\n        uint256 expectedMarketFeeBPS\n    ) external payable returns (uint256 fill) {\n        address _weth = address(wethAddress);\n        uint256 _before = ERC20(_weth).balanceOf(address(this));\n        uint256 max_fill_withFee = max_fill_amount.add(\n            max_fill_amount.mul(expectedMarketFeeBPS).div(10000)\n        );\n        require(\n            msg.value >= max_fill_withFee,\n            \"must send as much ETH as max_fill_withFee\"\n        );\n        WETH9(wethAddress).deposit{value: max_fill_withFee}(); // Pay with native ETH -> WETH\n        // An amount in WETH\n        fill = RubiconMarket(RubiconMarketAddress).buyAllAmount(\n            buy_gem,\n            buy_amt,\n            ERC20(wethAddress),\n            max_fill_amount\n        );\n        ERC20(buy_gem).transfer(msg.sender, buy_amt);\n\n        uint256 _after = ERC20(_weth).balanceOf(address(this));\n        uint256 delta = _after - _before;\n\n        // Return unspent coins to sender\n        if (delta > 0) {\n            WETH9(wethAddress).withdraw(delta);\n            msg.sender.transfer(delta);\n        }\n    }"
}