2023-06-19 00:08:10 +00:00
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< td width = "35%" class = "headerValue" > < a href = "../index.html" > top level< / a > - < a href = "index.html" > v2< / a > - CurveFeeOracle.sol< span style = "font-size: 80%;" > (source / < a href = "CurveFeeOracle.sol.func-sort-c.html" > functions< / a > )< / span > < / td >
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< td class = "headerItem" > Test:< / td >
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2023-06-20 21:04:29 +00:00
< td class = "headerValue" > 2023-06-20 21:04:08< / td >
2023-06-19 00:08:10 +00:00
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< td class = "headerItem" > Functions:< / td >
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< td class = "headerCovTableEntryMed" > 80.0 %< / td >
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< pre class = "sourceHeading" > Line data Source code< / pre >
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< a name = "1" > < span class = "lineNum" > 1 < / span > : // SPDX-License-Identifier: MIT< / a >
< a name = "2" > < span class = "lineNum" > 2 < / span > : < / a >
< a name = "3" > < span class = "lineNum" > 3 < / span > : pragma solidity ^0.6.12;< / a >
< a name = "4" > < span class = "lineNum" > 4 < / span > : pragma experimental ABIEncoderV2;< / a >
< a name = "5" > < span class = "lineNum" > 5 < / span > : < / a >
< a name = "6" > < span class = "lineNum" > 6 < / span > : // OZ imports< / a >
< a name = "7" > < span class = "lineNum" > 7 < / span > : < / a >
< a name = "8" > < span class = "lineNum" > 8 < / span > : import { SafeMath } from " @openzeppelin/contracts/math/SafeMath.sol" ;< / a >
< a name = "9" > < span class = "lineNum" > 9 < / span > : import { IERC20 } from " @openzeppelin/contracts/token/ERC20/IERC20.sol" ;< / a >
< a name = "10" > < span class = "lineNum" > 10 < / span > : < / a >
< a name = "11" > < span class = "lineNum" > 11 < / span > : // Tornado imports< / a >
< a name = "12" > < span class = "lineNum" > 12 < / span > : < / a >
< a name = "13" > < span class = "lineNum" > 13 < / span > : import { ITornadoInstance } from " tornado-anonymity-mining/contracts/interfaces/ITornadoInstance.sol" ;< / a >
< a name = "14" > < span class = "lineNum" > 14 < / span > : < / a >
< a name = "15" > < span class = "lineNum" > 15 < / span > : // Local imports< / a >
< a name = "16" > < span class = "lineNum" > 16 < / span > : < / a >
< a name = "17" > < span class = "lineNum" > 17 < / span > : import { IFeeOracle, InstanceWithFee } from " ./interfaces/IFeeOracle.sol" ;< / a >
< a name = "18" > < span class = "lineNum" > 18 < / span > : < / a >
< a name = "19" > < span class = "lineNum" > 19 < / span > : import { UniswapV3OracleHelper } from " ./libraries/UniswapV3OracleHelper.sol" ;< / a >
< a name = "20" > < span class = "lineNum" > 20 < / span > : < / a >
< a name = "21" > < span class = "lineNum" > 21 < / span > : import { UniswapFeeOracle } from " ./UniswapFeeOracle.sol" ;< / a >
< a name = "22" > < span class = "lineNum" > 22 < / span > : < / a >
< a name = "23" > < span class = "lineNum" > 23 < / span > : import { InstanceState } from " ./InstanceRegistry.sol" ;< / a >
< a name = "24" > < span class = "lineNum" > 24 < / span > : < / a >
< a name = "25" > < span class = "lineNum" > 25 < / span > : /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ CURVE FINANCE INTERFACE ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */< / a >
< a name = "26" > < span class = "lineNum" > 26 < / span > : < / a >
< a name = "27" > < span class = "lineNum" > 27 < / span > : interface ICurvePriceOracle {< / a >
< a name = "28" > < span class = "lineNum" > 28 < / span > : /// @dev For Plain2 and CryptoSwap2< / a >
< a name = "29" > < span class = "lineNum" > 29 < / span > : function price_oracle() external view returns (uint256);< / a >
< a name = "30" > < span class = "lineNum" > 30 < / span > : /// @dev For Tricrypto pools< / a >
< a name = "31" > < span class = "lineNum" > 31 < / span > : function price_oracle(uint256 k) external view returns (uint256);< / a >
< a name = "32" > < span class = "lineNum" > 32 < / span > : }< / a >
< a name = "33" > < span class = "lineNum" > 33 < / span > : < / a >
< a name = "34" > < span class = "lineNum" > 34 < / span > : /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ CURVE FEE ORACLE ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */< / a >
< a name = "35" > < span class = "lineNum" > 35 < / span > : < / a >
< a name = "36" > < span class = "lineNum" > 36 < / span > : /**< / a >
< a name = "37" > < span class = "lineNum" > 37 < / span > : * @title CurveChainedOracles< / a >
< a name = "38" > < span class = "lineNum" > 38 < / span > : * @author AlienTornadosaurusHex< / a >
< a name = "39" > < span class = "lineNum" > 39 < / span > : * @notice This library is designed to help us simplify the workflow and introduce at least some packing to< / a >
< a name = "40" > < span class = "lineNum" > 40 < / span > : * not waste large amounts of gas due to simplifying. Obviously, the best solution would be to just deploy a< / a >
< a name = "41" > < span class = "lineNum" > 41 < / span > : * per-coin oracle, but I've wanted to have a general implementation because it makes the Governance process< / a >
< a name = "42" > < span class = "lineNum" > 42 < / span > : * easier.< / a >
< a name = "43" > < span class = "lineNum" > 43 < / span > : */< / a >
< a name = "44" > < span class = "lineNum" > 44 < / span > : library CurveChainedOracles {< / a >
< a name = "45" > < span class = "lineNum" > 45 < / span > : bytes4 public constant PRICE_ORACLE_SELECTOR = bytes4(keccak256((" price_oracle()" )));< / a >
< a name = "46" > < span class = "lineNum" > 46 < / span > : bytes4 public constant PRICE_ORACLE_UINT256_SELECTOR = bytes4(keccak256((" price_oracle(uint256)" )));< / a >
< a name = "47" > < span class = "lineNum" > 47 < / span > : < / a >
< a name = "48" > < span class = "lineNum" > 48 < / span > : /**< / a >
< a name = "49" > < span class = "lineNum" > 49 < / span > : * @notice This function prepares data for chain calling Curve oracles.< / a >
< a name = "50" > < span class = "lineNum" > 50 < / span > : * @dev The returns is called oracle because it contains sufficient data to execute the entire process,< / a >
< a name = "51" > < span class = "lineNum" > 51 < / span > : * meaning it represents an oracle in a sense.< / a >
< a name = "52" > < span class = "lineNum" > 52 < / span > : * @param _oracles Curve contracts compatible with either `price_oracle()` or `price_oracle(uint256)`.< / a >
< a name = "53" > < span class = "lineNum" > 53 < / span > : * @param _selectors Selectors for contract, each is only either `keccak256()` or< / a >
< a name = "54" > < span class = "lineNum" > 54 < / span > : * `keccak256('price_oracle(uint256)')`< / a >
< a name = "55" > < span class = "lineNum" > 55 < / span > : * @param _coins Curve pool coin ids which are used for `price_oracle(uint256)`< / a >
< a name = "56" > < span class = "lineNum" > 56 < / span > : * @param _invertPrice For each oracle capable pool, whether the token we are searching the price for is< / a >
< a name = "57" > < span class = "lineNum" > 57 < / span > : * token0 or not, or in general whether we want to take the inverse of the price.< / a >
< a name = "58" > < span class = "lineNum" > 58 < / span > : * @return oracle Packed bytes data which represents full data for a chained call to Curve oracles.< / a >
< a name = "59" > < span class = "lineNum" > 59 < / span > : */< / a >
< a name = "60" > < span class = "lineNum" > 60 < / span > : function createChainedOracle(< / a >
< a name = "61" > < span class = "lineNum" > 61 < / span > : ICurvePriceOracle[] memory _oracles,< / a >
< a name = "62" > < span class = "lineNum" > 62 < / span > : bytes4[] memory _selectors,< / a >
< a name = "63" > < span class = "lineNum" > 63 < / span > : uint8[] memory _coins,< / a >
< a name = "64" > < span class = "lineNum" > 64 < / span > : bool[] memory _invertPrice< / a >
< a name = "65" > < span class = "lineNum" > 65 < / span > : ) internal view returns (bytes memory oracle) {< / a >
< a name = "66" > < span class = "lineNum" > 66 < / span > < span class = "lineNoCov" > 0 : uint256 numOracles = _oracles.length;< / span > < / a >
< a name = "67" > < span class = "lineNum" > 67 < / span > : < / a >
< a name = "68" > < span class = "lineNum" > 68 < / span > < span class = "lineNoCov" > 0 : for (uint256 o = 0; o < numOracles; o++) {< / span > < / a >
< a name = "69" > < span class = "lineNum" > 69 < / span > : // The oracle which will be providing the price< / a >
< a name = "70" > < span class = "lineNum" > 70 < / span > < span class = "lineNoCov" > 0 : ICurvePriceOracle _oracle = _oracles[o];< / span > < / a >
< a name = "71" > < span class = "lineNum" > 71 < / span > : < / a >
< a name = "72" > < span class = "lineNum" > 72 < / span > : // The selector which determines the call< / a >
< a name = "73" > < span class = "lineNum" > 73 < / span > < span class = "lineNoCov" > 0 : bytes4 _selector = _selectors[o];< / span > < / a >
< a name = "74" > < span class = "lineNum" > 74 < / span > : < / a >
< a name = "75" > < span class = "lineNum" > 75 < / span > : // Index of the coin in the curve pool for second UINT256 selector< / a >
< a name = "76" > < span class = "lineNum" > 76 < / span > < span class = "lineNoCov" > 0 : uint8 _coin = _coins[o];< / span > < / a >
< a name = "77" > < span class = "lineNum" > 77 < / span > : < / a >
< a name = "78" > < span class = "lineNum" > 78 < / span > : // Check whether the config actually works< / a >
< a name = "79" > < span class = "lineNum" > 79 < / span > < span class = "lineNoCov" > 0 : if (_selector == PRICE_ORACLE_SELECTOR) {< / span > < / a >
< a name = "80" > < span class = "lineNum" > 80 < / span > < span class = "lineNoCov" > 0 : try _oracle.price_oracle() returns (uint256) { /* Works, do nothing */ }< / span > < / a >
< a name = "81" > < span class = "lineNum" > 81 < / span > : catch {< / a >
< a name = "82" > < span class = "lineNum" > 82 < / span > : require(false, " CurveChainedOracles: test call price_oracle() failed" );< / a >
< a name = "83" > < span class = "lineNum" > 83 < / span > : }< / a >
< a name = "84" > < span class = "lineNum" > 84 < / span > < span class = "lineNoCov" > 0 : } else if (_selector == PRICE_ORACLE_UINT256_SELECTOR) {< / span > < / a >
< a name = "85" > < span class = "lineNum" > 85 < / span > < span class = "lineNoCov" > 0 : try _oracle.price_oracle(_coin) returns (uint256) { /* Works, do nothing */ }< / span > < / a >
< a name = "86" > < span class = "lineNum" > 86 < / span > : catch {< / a >
< a name = "87" > < span class = "lineNum" > 87 < / span > : require(false, " CurveChainedOracles: test call price_oracle(uint256) failed" );< / a >
< a name = "88" > < span class = "lineNum" > 88 < / span > : }< / a >
< a name = "89" > < span class = "lineNum" > 89 < / span > : } else {< / a >
< a name = "90" > < span class = "lineNum" > 90 < / span > < span class = "lineNoCov" > 0 : require(false, " CurveChainedOracles: none or invalid selector" );< / span > < / a >
< a name = "91" > < span class = "lineNum" > 91 < / span > : }< / a >
< a name = "92" > < span class = "lineNum" > 92 < / span > : < / a >
< a name = "93" > < span class = "lineNum" > 93 < / span > : // We prepend the former iteration, to have it in proper left to right order< / a >
< a name = "94" > < span class = "lineNum" > 94 < / span > < span class = "lineNoCov" > 0 : oracle = abi.encodePacked(oracle, _oracle, _selector, _coin, _invertPrice[o]);< / span > < / a >
< a name = "95" > < span class = "lineNum" > 95 < / span > : }< / a >
< a name = "96" > < span class = "lineNum" > 96 < / span > : }< / a >
< a name = "97" > < span class = "lineNum" > 97 < / span > : < / a >
< a name = "98" > < span class = "lineNum" > 98 < / span > : /**< / a >
< a name = "99" > < span class = "lineNum" > 99 < / span > : * @notice Function which unpacks `_oracle` data and chains the price calls to return one final price.< / a >
< a name = "100" > < span class = "lineNum" > 100 < / span > : * @dev The name `price_oracle` was chosen because it reflects the Curve signature of the same name.< / a >
< a name = "101" > < span class = "lineNum" > 101 < / span > : * @param _oracle The packed bytes data.< / a >
< a name = "102" > < span class = "lineNum" > 102 < / span > : * @return Price of some token in some other token E18.< / a >
< a name = "103" > < span class = "lineNum" > 103 < / span > : */< / a >
< a name = "104" > < span class = "lineNum" > 104 < / span > : function price_oracle(bytes memory _oracle) internal view returns (uint256) {< / a >
< a name = "105" > < span class = "lineNum" > 105 < / span > < span class = "lineNoCov" > 0 : uint256 price = 1e18;< / span > < / a >
< a name = "106" > < span class = "lineNum" > 106 < / span > < span class = "lineNoCov" > 0 : uint256 priceDivisor = 1e18;< / span > < / a >
< a name = "107" > < span class = "lineNum" > 107 < / span > < span class = "lineNoCov" > 0 : uint256 inverseNumerator = 1e36;< / span > < / a >
< a name = "108" > < span class = "lineNum" > 108 < / span > : < / a >
< a name = "109" > < span class = "lineNum" > 109 < / span > : // We know that each oracle addition encodes to exactly 26 bytes< / a >
< a name = "110" > < span class = "lineNum" > 110 < / span > < span class = "lineNoCov" > 0 : uint256 numOracles = _oracle.length / 26;< / span > < / a >
< a name = "111" > < span class = "lineNum" > 111 < / span > : < / a >
< a name = "112" > < span class = "lineNum" > 112 < / span > < span class = "lineNoCov" > 0 : for (uint256 o = 0; o < numOracles; o++) {< / span > < / a >
< a name = "113" > < span class = "lineNum" > 113 < / span > < span class = "lineNoCov" > 0 : bytes32 chunk;< / span > < / a >
< a name = "114" > < span class = "lineNum" > 114 < / span > : < / a >
< a name = "115" > < span class = "lineNum" > 115 < / span > : // Packed bytes can't be decoded, have to do it ourselves< / a >
< a name = "116" > < span class = "lineNum" > 116 < / span > : // mload always reads bytes32, always offset by 26 bytes because data is always stored fully< / a >
< a name = "117" > < span class = "lineNum" > 117 < / span > : // packed from left to right< / a >
< a name = "118" > < span class = "lineNum" > 118 < / span > : assembly {< / a >
< a name = "119" > < span class = "lineNum" > 119 < / span > < span class = "lineNoCov" > 0 : chunk := mload(add(_oracle, add(32, mul(26, o))))< / span > < / a >
< a name = "120" > < span class = "lineNum" > 120 < / span > : }< / a >
< a name = "121" > < span class = "lineNum" > 121 < / span > : < / a >
< a name = "122" > < span class = "lineNum" > 122 < / span > : // Properly read in all of the packed data< / a >
< a name = "123" > < span class = "lineNum" > 123 < / span > : < / a >
< a name = "124" > < span class = "lineNum" > 124 < / span > : // Always packed from left to right, first 20 bytes is address< / a >
< a name = "125" > < span class = "lineNum" > 125 < / span > < span class = "lineNoCov" > 0 : ICurvePriceOracle oracle = ICurvePriceOracle(address(bytes20(chunk)));< / span > < / a >
< a name = "126" > < span class = "lineNum" > 126 < / span > : < / a >
< a name = "127" > < span class = "lineNum" > 127 < / span > : // Then from 20 to 24 is selector, shift by 20x8=160< / a >
< a name = "128" > < span class = "lineNum" > 128 < / span > < span class = "lineNoCov" > 0 : bytes4 selector = bytes4(chunk < < 160);< / span > < / a >
< a name = "129" > < span class = "lineNum" > 129 < / span > : < / a >
< a name = "130" > < span class = "lineNum" > 130 < / span > : // From 24 to 25 is coin index, shift by 160+4x8=192< / a >
< a name = "131" > < span class = "lineNum" > 131 < / span > < span class = "lineNoCov" > 0 : uint8 coin = uint8(bytes1(chunk < < 192));< / span > < / a >
< a name = "132" > < span class = "lineNum" > 132 < / span > : < / a >
< a name = "133" > < span class = "lineNum" > 133 < / span > : // From 25 to 26 is whether to invert price, shift by 192+1x8=200< / a >
< a name = "134" > < span class = "lineNum" > 134 < / span > < span class = "lineNoCov" > 0 : bool invertPrice = bytes1(chunk < < 200) == 0x01;< / span > < / a >
< a name = "135" > < span class = "lineNum" > 135 < / span > : < / a >
< a name = "136" > < span class = "lineNum" > 136 < / span > < span class = "lineNoCov" > 0 : uint256 priceFromOracle;< / span > < / a >
< a name = "137" > < span class = "lineNum" > 137 < / span > : < / a >
< a name = "138" > < span class = "lineNum" > 138 < / span > : // Execute according to selector< / a >
< a name = "139" > < span class = "lineNum" > 139 < / span > : // These are guaranteed to all be 1e18< / a >
< a name = "140" > < span class = "lineNum" > 140 < / span > < span class = "lineNoCov" > 0 : if (selector == PRICE_ORACLE_SELECTOR) {< / span > < / a >
< a name = "141" > < span class = "lineNum" > 141 < / span > < span class = "lineNoCov" > 0 : priceFromOracle = ICurvePriceOracle(oracle).price_oracle();< / span > < / a >
< a name = "142" > < span class = "lineNum" > 142 < / span > < span class = "lineNoCov" > 0 : } else if (selector == PRICE_ORACLE_UINT256_SELECTOR) {< / span > < / a >
< a name = "143" > < span class = "lineNum" > 143 < / span > < span class = "lineNoCov" > 0 : priceFromOracle = ICurvePriceOracle(oracle).price_oracle(coin);< / span > < / a >
< a name = "144" > < span class = "lineNum" > 144 < / span > : }< / a >
< a name = "145" > < span class = "lineNum" > 145 < / span > : < / a >
< a name = "146" > < span class = "lineNum" > 146 < / span > : // Check whether we need to invert price< / a >
< a name = "147" > < span class = "lineNum" > 147 < / span > < span class = "lineNoCov" > 0 : if (invertPrice) {< / span > < / a >
< a name = "148" > < span class = "lineNum" > 148 < / span > < span class = "lineNoCov" > 0 : priceFromOracle = inverseNumerator / priceFromOracle;< / span > < / a >
< a name = "149" > < span class = "lineNum" > 149 < / span > : }< / a >
< a name = "150" > < span class = "lineNum" > 150 < / span > : < / a >
< a name = "151" > < span class = "lineNum" > 151 < / span > : // Calc price< / a >
< a name = "152" > < span class = "lineNum" > 152 < / span > < span class = "lineNoCov" > 0 : price = (price * priceFromOracle) / priceDivisor;< / span > < / a >
< a name = "153" > < span class = "lineNum" > 153 < / span > : }< / a >
< a name = "154" > < span class = "lineNum" > 154 < / span > : < / a >
< a name = "155" > < span class = "lineNum" > 155 < / span > < span class = "lineNoCov" > 0 : return price;< / span > < / a >
< a name = "156" > < span class = "lineNum" > 156 < / span > : }< / a >
< a name = "157" > < span class = "lineNum" > 157 < / span > : }< / a >
< a name = "158" > < span class = "lineNum" > 158 < / span > : < / a >
< a name = "159" > < span class = "lineNum" > 159 < / span > : /**< / a >
< a name = "160" > < span class = "lineNum" > 160 < / span > : * @title CurveFeeOracle< / a >
< a name = "161" > < span class = "lineNum" > 161 < / span > : * @author AlienTornadosaurusHex< / a >
< a name = "162" > < span class = "lineNum" > 162 < / span > : * @notice Many Curve contracts now have an EMA/TWAP Oracle which can be used instead of having to rely on< / a >
< a name = "163" > < span class = "lineNum" > 163 < / span > : * Chainlink (Offchain) Pricefeeds or Uniswap Twap Oracles. We do not use Metapools because they do not< / a >
< a name = "164" > < span class = "lineNum" > 164 < / span > : * have a safe enough TWAP oracle, instead we use the `price_oracle` capable contracts, which use a safer< / a >
< a name = "165" > < span class = "lineNum" > 165 < / span > : * analytical solution.< / a >
< a name = "166" > < span class = "lineNum" > 166 < / span > : */< / a >
< a name = "167" > < span class = "lineNum" > 167 < / span > : contract CurveFeeOracle is IFeeOracle {< / a >
< a name = "168" > < span class = "lineNum" > 168 < / span > : using SafeMath for uint256;< / a >
< a name = "169" > < span class = "lineNum" > 169 < / span > : using CurveChainedOracles for *;< / a >
< a name = "170" > < span class = "lineNum" > 170 < / span > : < / a >
< a name = "171" > < span class = "lineNum" > 171 < / span > : /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ VARIABLES ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */< / a >
< a name = "172" > < span class = "lineNum" > 172 < / span > : < / a >
< a name = "173" > < span class = "lineNum" > 173 < / span > : /**< / a >
< a name = "174" > < span class = "lineNum" > 174 < / span > : * @notice The Governance Proxy address< / a >
< a name = "175" > < span class = "lineNum" > 175 < / span > : */< / a >
< a name = "176" > < span class = "lineNum" > 176 < / span > : address public immutable governanceProxyAddress;< / a >
< a name = "177" > < span class = "lineNum" > 177 < / span > : < / a >
< a name = "178" > < span class = "lineNum" > 178 < / span > : /**< / a >
< a name = "179" > < span class = "lineNum" > 179 < / span > : * @notice For each instance, a set of data which translates to a set of chained price oracle calls, we< / a >
< a name = "180" > < span class = "lineNum" > 180 < / span > : * call this data " chainedPriceOracles" because it encodes all data necessary to execute the chain and< / a >
< a name = "181" > < span class = "lineNum" > 181 < / span > : * calc the price< / a >
< a name = "182" > < span class = "lineNum" > 182 < / span > : */< / a >
< a name = "183" > < span class = "lineNum" > 183 < / span > : mapping(ITornadoInstance => bytes) public chainedPriceOracles;< / a >
< a name = "184" > < span class = "lineNum" > 184 < / span > : < / a >
< a name = "185" > < span class = "lineNum" > 185 < / span > : /**< / a >
< a name = "186" > < span class = "lineNum" > 186 < / span > : * @notice When setting, store the names as a historical record, key is keccak256(bytes)< / a >
< a name = "187" > < span class = "lineNum" > 187 < / span > : */< / a >
< a name = "188" > < span class = "lineNum" > 188 < / span > : mapping(bytes32 => string) public chainedPriceOracleNames;< / a >
< a name = "189" > < span class = "lineNum" > 189 < / span > : < / a >
< a name = "190" > < span class = "lineNum" > 190 < / span > : /**< / a >
< a name = "191" > < span class = "lineNum" > 191 < / span > : * @notice Our Uniswap Fee Oracle, we will need it some time for TORN/ETH< / a >
< a name = "192" > < span class = "lineNum" > 192 < / span > : */< / a >
< a name = "193" > < span class = "lineNum" > 193 < / span > : UniswapFeeOracle public uniswapFeeOracle;< / a >
< a name = "194" > < span class = "lineNum" > 194 < / span > : < / a >
< a name = "195" > < span class = "lineNum" > 195 < / span > : /**< / a >
< a name = "196" > < span class = "lineNum" > 196 < / span > : * @notice We will not need the Uniswap Oracle forever though, TORN/ETH pools are possible on Curve too< / a >
< a name = "197" > < span class = "lineNum" > 197 < / span > : */< / a >
< a name = "198" > < span class = "lineNum" > 198 < / span > : bool public tornOracleIsUniswap;< / a >
< a name = "199" > < span class = "lineNum" > 199 < / span > : < / a >
< a name = "200" > < span class = "lineNum" > 200 < / span > : /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ EVENTS ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */< / a >
< a name = "201" > < span class = "lineNum" > 201 < / span > : < / a >
< a name = "202" > < span class = "lineNum" > 202 < / span > : event TornOracleIsCurve();< / a >
< a name = "203" > < span class = "lineNum" > 203 < / span > : event TornOracleIsUniswapV3();< / a >
< a name = "204" > < span class = "lineNum" > 204 < / span > : event UniswapFeeOracleUpdated(address _newUniswapFeeOracleAddress);< / a >
< a name = "205" > < span class = "lineNum" > 205 < / span > : event ChainedOracleUpdated(address indexed instance, bytes32 newOracleHash, string newName);< / a >
< a name = "206" > < span class = "lineNum" > 206 < / span > : < / a >
< a name = "207" > < span class = "lineNum" > 207 < / span > : /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ LOGIC ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */< / a >
< a name = "208" > < span class = "lineNum" > 208 < / span > : < / a >
< a name = "209" > < span class = "lineNum" > 209 < / span > : constructor(address _governanceProxyAddress) public {< / a >
< a name = "210" > < span class = "lineNum" > 210 < / span > : governanceProxyAddress = _governanceProxyAddress;< / a >
< a name = "211" > < span class = "lineNum" > 211 < / span > : tornOracleIsUniswap = true;< / a >
< a name = "212" > < span class = "lineNum" > 212 < / span > : }< / a >
< a name = "213" > < span class = "lineNum" > 213 < / span > : < / a >
< a name = "214" > < span class = "lineNum" > 214 < / span > : modifier onlyGovernance() {< / a >
< a name = "215" > < span class = "lineNum" > 215 < / span > : require(msg.sender == governanceProxyAddress, " UniswapFeeOracle: onlyGovernance" );< / a >
< a name = "216" > < span class = "lineNum" > 216 < / span > : _;< / a >
< a name = "217" > < span class = "lineNum" > 217 < / span > : }< / a >
< a name = "218" > < span class = "lineNum" > 218 < / span > : < / a >
< a name = "219" > < span class = "lineNum" > 219 < / span > : /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GETTERS ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */< / a >
< a name = "220" > < span class = "lineNum" > 220 < / span > : < / a >
< a name = "221" > < span class = "lineNum" > 221 < / span > : function update(IERC20, InstanceWithFee memory) public virtual override { }< / a >
< a name = "222" > < span class = "lineNum" > 222 < / span > : < / a >
< a name = "223" > < span class = "lineNum" > 223 < / span > : function getFee(IERC20, InstanceWithFee memory _instance)< / a >
< a name = "224" > < span class = "lineNum" > 224 < / span > : public< / a >
< a name = "225" > < span class = "lineNum" > 225 < / span > : view< / a >
< a name = "226" > < span class = "lineNum" > 226 < / span > : virtual< / a >
< a name = "227" > < span class = "lineNum" > 227 < / span > : override< / a >
< a name = "228" > < span class = "lineNum" > 228 < / span > : returns (uint160)< / a >
< a name = "229" > < span class = "lineNum" > 229 < / span > : {< / a >
< a name = "230" > < span class = "lineNum" > 230 < / span > : // If fee is 0 return< / a >
< a name = "231" > < span class = "lineNum" > 231 < / span > < span class = "lineCov" > 26 : if (_instance.fee.percent == 0) return 0;< / span > < / a >
< a name = "232" > < span class = "lineNum" > 232 < / span > : < / a >
< a name = "233" > < span class = "lineNum" > 233 < / span > : // Either ETH PER TOKEN or TORN PER TOKEN< / a >
< a name = "234" > < span class = "lineNum" > 234 < / span > < span class = "lineCov" > 16 : uint256 price = chainedPriceOracles[_instance.logic].price_oracle();< / span > < / a >
< a name = "235" > < span class = "lineNum" > 235 < / span > : < / a >
< a name = "236" > < span class = "lineNum" > 236 < / span > : // ETH PER TOKEN * TORN PER ETH = TORN PER TOKEN< / a >
< a name = "237" > < span class = "lineNum" > 237 < / span > < span class = "lineCov" > 16 : if (tornOracleIsUniswap) {< / span > < / a >
< a name = "238" > < span class = "lineNum" > 238 < / span > < span class = "lineCov" > 15 : price = price< / span > < / a >
< a name = "239" > < span class = "lineNum" > 239 < / span > : * uniswapFeeOracle.getTORNPerToken(< / a >
< a name = "240" > < span class = "lineNum" > 240 < / span > : IERC20(UniswapV3OracleHelper.WETH), _instance.fee.updateInterval< / a >
< a name = "241" > < span class = "lineNum" > 241 < / span > : ) / UniswapV3OracleHelper.RATIO_DIVIDER;< / a >
< a name = "242" > < span class = "lineNum" > 242 < / span > : }< / a >
< a name = "243" > < span class = "lineNum" > 243 < / span > : < / a >
< a name = "244" > < span class = "lineNum" > 244 < / span > : // DENOMINATION IN TOKEN * TORN PER TOKEN * FEE_NUMERATOR / FEE_DIVISOR = FEE IN TORN< / a >
< a name = "245" > < span class = "lineNum" > 245 < / span > < span class = "lineCov" > 16 : return uint160(< / span > < / a >
< a name = "246" > < span class = "lineNum" > 246 < / span > : _instance.logic.denomination().mul(price).div(UniswapV3OracleHelper.RATIO_DIVIDER).mul(< / a >
< a name = "247" > < span class = "lineNum" > 247 < / span > : uint256(_instance.fee.percent)< / a >
< a name = "248" > < span class = "lineNum" > 248 < / span > : ).div(uint256(_instance.fee.divisor))< / a >
< a name = "249" > < span class = "lineNum" > 249 < / span > : );< / a >
< a name = "250" > < span class = "lineNum" > 250 < / span > : }< / a >
< a name = "251" > < span class = "lineNum" > 251 < / span > : < / a >
< a name = "252" > < span class = "lineNum" > 252 < / span > : function getChainedOracleNameForInstance(ITornadoInstance _instance)< / a >
< a name = "253" > < span class = "lineNum" > 253 < / span > : public< / a >
< a name = "254" > < span class = "lineNum" > 254 < / span > : view< / a >
< a name = "255" > < span class = "lineNum" > 255 < / span > : virtual< / a >
< a name = "256" > < span class = "lineNum" > 256 < / span > : returns (string memory)< / a >
< a name = "257" > < span class = "lineNum" > 257 < / span > : {< / a >
< a name = "258" > < span class = "lineNum" > 258 < / span > < span class = "lineCov" > 1 : return chainedPriceOracleNames[getChainedOracleHashForInstance(_instance)];< / span > < / a >
< a name = "259" > < span class = "lineNum" > 259 < / span > : }< / a >
< a name = "260" > < span class = "lineNum" > 260 < / span > : < / a >
< a name = "261" > < span class = "lineNum" > 261 < / span > : function getChainedOracleNameForOracleHash(bytes32 _oracleHash)< / a >
< a name = "262" > < span class = "lineNum" > 262 < / span > : public< / a >
< a name = "263" > < span class = "lineNum" > 263 < / span > : view< / a >
< a name = "264" > < span class = "lineNum" > 264 < / span > : virtual< / a >
< a name = "265" > < span class = "lineNum" > 265 < / span > : returns (string memory)< / a >
< a name = "266" > < span class = "lineNum" > 266 < / span > : {< / a >
< a name = "267" > < span class = "lineNum" > 267 < / span > < span class = "lineCov" > 1 : return chainedPriceOracleNames[_oracleHash];< / span > < / a >
< a name = "268" > < span class = "lineNum" > 268 < / span > : }< / a >
< a name = "269" > < span class = "lineNum" > 269 < / span > : < / a >
< a name = "270" > < span class = "lineNum" > 270 < / span > : function getChainedOracleHashForInstance(ITornadoInstance _instance)< / a >
< a name = "271" > < span class = "lineNum" > 271 < / span > : public< / a >
< a name = "272" > < span class = "lineNum" > 272 < / span > : view< / a >
< a name = "273" > < span class = "lineNum" > 273 < / span > : virtual< / a >
< a name = "274" > < span class = "lineNum" > 274 < / span > : returns (bytes32)< / a >
< a name = "275" > < span class = "lineNum" > 275 < / span > : {< / a >
< a name = "276" > < span class = "lineNum" > 276 < / span > < span class = "lineCov" > 2 : return keccak256(chainedPriceOracles[_instance]);< / span > < / a >
< a name = "277" > < span class = "lineNum" > 277 < / span > : }< / a >
< a name = "278" > < span class = "lineNum" > 278 < / span > : < / a >
< a name = "279" > < span class = "lineNum" > 279 < / span > : /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ SETTERS ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */< / a >
< a name = "280" > < span class = "lineNum" > 280 < / span > : < / a >
< a name = "281" > < span class = "lineNum" > 281 < / span > : function modifyChainedOracleForInstance(< / a >
< a name = "282" > < span class = "lineNum" > 282 < / span > : ITornadoInstance _instance,< / a >
< a name = "283" > < span class = "lineNum" > 283 < / span > : ICurvePriceOracle[] memory _oracles,< / a >
< a name = "284" > < span class = "lineNum" > 284 < / span > : bytes4[] memory _selectors,< / a >
< a name = "285" > < span class = "lineNum" > 285 < / span > : uint8[] memory _coins,< / a >
< a name = "286" > < span class = "lineNum" > 286 < / span > : bool[] memory _invertPrice,< / a >
< a name = "287" > < span class = "lineNum" > 287 < / span > : string memory _name< / a >
< a name = "288" > < span class = "lineNum" > 288 < / span > : ) public virtual onlyGovernance {< / a >
< a name = "289" > < span class = "lineNum" > 289 < / span > < span class = "lineCov" > 12 : bytes memory oracle = _oracles.createChainedOracle(_selectors, _coins, _invertPrice);< / span > < / a >
< a name = "290" > < span class = "lineNum" > 290 < / span > < span class = "lineCov" > 12 : bytes32 oracleHash = keccak256(oracle);< / span > < / a >
< a name = "291" > < span class = "lineNum" > 291 < / span > : < / a >
< a name = "292" > < span class = "lineNum" > 292 < / span > < span class = "lineCov" > 12 : chainedPriceOracles[_instance] = oracle;< / span > < / a >
< a name = "293" > < span class = "lineNum" > 293 < / span > < span class = "lineCov" > 12 : chainedPriceOracleNames[oracleHash] = _name;< / span > < / a >
< a name = "294" > < span class = "lineNum" > 294 < / span > : < / a >
< a name = "295" > < span class = "lineNum" > 295 < / span > < span class = "lineCov" > 12 : emit ChainedOracleUpdated(address(_instance), oracleHash, _name);< / span > < / a >
< a name = "296" > < span class = "lineNum" > 296 < / span > : }< / a >
< a name = "297" > < span class = "lineNum" > 297 < / span > : < / a >
< a name = "298" > < span class = "lineNum" > 298 < / span > : function setUniswapFeeOracle(UniswapFeeOracle _uniswapFeeOracle) public virtual onlyGovernance {< / a >
< a name = "299" > < span class = "lineNum" > 299 < / span > < span class = "lineCov" > 2 : uniswapFeeOracle = _uniswapFeeOracle;< / span > < / a >
< a name = "300" > < span class = "lineNum" > 300 < / span > < span class = "lineCov" > 2 : emit UniswapFeeOracleUpdated(address(_uniswapFeeOracle));< / span > < / a >
< a name = "301" > < span class = "lineNum" > 301 < / span > : }< / a >
< a name = "302" > < span class = "lineNum" > 302 < / span > : < / a >
< a name = "303" > < span class = "lineNum" > 303 < / span > : function setTornOracleIsUniswap(bool _is) public virtual onlyGovernance {< / a >
< a name = "304" > < span class = "lineNum" > 304 < / span > < span class = "lineCov" > 1 : tornOracleIsUniswap = _is;< / span > < / a >
< a name = "305" > < span class = "lineNum" > 305 < / span > < span class = "lineCov" > 1 : if (_is) emit TornOracleIsUniswapV3();< / span > < / a >
< a name = "306" > < span class = "lineNum" > 306 < / span > < span class = "lineNoCov" > 0 : else emit TornOracleIsCurve();< / span > < / a >
< a name = "307" > < span class = "lineNum" > 307 < / span > : }< / a >
< a name = "308" > < span class = "lineNum" > 308 < / span > : }< / a >
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< tr > < td class = "ruler" > < img src = "../glass.png" width = 3 height = 3 alt = "" > < / td > < / tr >
< tr > < td class = "versionInfo" > Generated by: < a href = "https://github.com/linux-test-project/lcov" target = "_parent" > LCOV version 1.16< / a > < / td > < / tr >
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