2023-06-19 00:08:10 +00:00
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< title > LCOV - lcov.info - v1/tornado-proxy/FeeManager.sol< / title >
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< tr > < td class = "title" > LCOV - code coverage report< / td > < / tr >
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< td width = "35%" class = "headerValue" > < a href = "../../index.html" > top level< / a > - < a href = "index.html" > v1/tornado-proxy< / a > - FeeManager.sol< span style = "font-size: 80%;" > (source / < a href = "FeeManager.sol.func-sort-c.html" > functions< / a > )< / span > < / td >
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< 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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< 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 > : import { UniswapV3OracleHelper } from " ../libraries/UniswapV3OracleHelper.sol" ;< / a >
< a name = "7" > < span class = "lineNum" > 7 < / span > : import { SafeMath } from " @openzeppelin/contracts/math/SafeMath.sol" ;< / a >
< a name = "8" > < span class = "lineNum" > 8 < / span > : import { EnsResolve } from " torn-token/contracts/ENS.sol" ;< / a >
< a name = "9" > < span class = "lineNum" > 9 < / span > : < / a >
< a name = "10" > < span class = "lineNum" > 10 < / span > : import " @openzeppelin/contracts/token/ERC20/IERC20.sol" ;< / a >
< a name = "11" > < span class = "lineNum" > 11 < / span > : import " tornado-anonymity-mining/contracts/interfaces/ITornadoInstance.sol" ;< / a >
< a name = "12" > < span class = "lineNum" > 12 < / span > : import " ./InstanceRegistry.sol" ;< / a >
< a name = "13" > < span class = "lineNum" > 13 < / span > : < / a >
< a name = "14" > < span class = "lineNum" > 14 < / span > : /// @dev contract which calculates the fee for each pool< / a >
< a name = "15" > < span class = "lineNum" > 15 < / span > : contract FeeManager is EnsResolve {< / a >
< a name = "16" > < span class = "lineNum" > 16 < / span > : using SafeMath for uint256;< / a >
< a name = "17" > < span class = "lineNum" > 17 < / span > : < / a >
< a name = "18" > < span class = "lineNum" > 18 < / span > : uint256 public constant PROTOCOL_FEE_DIVIDER = 10000;< / a >
< a name = "19" > < span class = "lineNum" > 19 < / span > : address public immutable torn;< / a >
< a name = "20" > < span class = "lineNum" > 20 < / span > : address public immutable governance;< / a >
< a name = "21" > < span class = "lineNum" > 21 < / span > : InstanceRegistry public immutable registry;< / a >
< a name = "22" > < span class = "lineNum" > 22 < / span > : < / a >
< a name = "23" > < span class = "lineNum" > 23 < / span > : uint24 public uniswapTornPoolSwappingFee;< / a >
< a name = "24" > < span class = "lineNum" > 24 < / span > : uint32 public uniswapTimePeriod;< / a >
< a name = "25" > < span class = "lineNum" > 25 < / span > : < / a >
< a name = "26" > < span class = "lineNum" > 26 < / span > : uint24 public updateFeeTimeLimit;< / a >
< a name = "27" > < span class = "lineNum" > 27 < / span > : < / a >
< a name = "28" > < span class = "lineNum" > 28 < / span > : mapping(ITornadoInstance => uint160) public instanceFee;< / a >
< a name = "29" > < span class = "lineNum" > 29 < / span > : mapping(ITornadoInstance => uint256) public instanceFeeUpdated;< / a >
< a name = "30" > < span class = "lineNum" > 30 < / span > : < / a >
< a name = "31" > < span class = "lineNum" > 31 < / span > : event FeeUpdated(address indexed instance, uint256 newFee);< / a >
< a name = "32" > < span class = "lineNum" > 32 < / span > : event UniswapTornPoolSwappingFeeChanged(uint24 newFee);< / a >
< a name = "33" > < span class = "lineNum" > 33 < / span > : < / a >
< a name = "34" > < span class = "lineNum" > 34 < / span > : modifier onlyGovernance() {< / a >
< a name = "35" > < span class = "lineNum" > 35 < / span > : require(msg.sender == governance);< / a >
< a name = "36" > < span class = "lineNum" > 36 < / span > : _;< / a >
< a name = "37" > < span class = "lineNum" > 37 < / span > : }< / a >
< a name = "38" > < span class = "lineNum" > 38 < / span > : < / a >
< a name = "39" > < span class = "lineNum" > 39 < / span > : struct Deviation {< / a >
< a name = "40" > < span class = "lineNum" > 40 < / span > : address instance;< / a >
< a name = "41" > < span class = "lineNum" > 41 < / span > : int256 deviation; // in 10**-1 percents, so it can be like -2.3% if the price of TORN declined< / a >
< a name = "42" > < span class = "lineNum" > 42 < / span > : }< / a >
< a name = "43" > < span class = "lineNum" > 43 < / span > : < / a >
< a name = "44" > < span class = "lineNum" > 44 < / span > : constructor(< / a >
< a name = "45" > < span class = "lineNum" > 45 < / span > : address _torn,< / a >
< a name = "46" > < span class = "lineNum" > 46 < / span > : address _governance,< / a >
< a name = "47" > < span class = "lineNum" > 47 < / span > : bytes32 _registry< / a >
< a name = "48" > < span class = "lineNum" > 48 < / span > : ) public {< / a >
< a name = "49" > < span class = "lineNum" > 49 < / span > : torn = _torn;< / a >
< a name = "50" > < span class = "lineNum" > 50 < / span > : governance = _governance;< / a >
< a name = "51" > < span class = "lineNum" > 51 < / span > : registry = InstanceRegistry(resolve(_registry));< / a >
< a name = "52" > < span class = "lineNum" > 52 < / span > : }< / a >
< a name = "53" > < span class = "lineNum" > 53 < / span > : < / a >
< a name = "54" > < span class = "lineNum" > 54 < / span > : /**< / a >
< a name = "55" > < span class = "lineNum" > 55 < / span > : * @notice This function should update the fees of each pool< / a >
< a name = "56" > < span class = "lineNum" > 56 < / span > : */< / a >
< a name = "57" > < span class = "lineNum" > 57 < / span > : function updateAllFees() external {< / a >
< a name = "58" > < span class = "lineNum" > 58 < / span > < span class = "lineNoCov" > 0 : updateFees(registry.getAllInstanceAddresses());< / span > < / a >
< a name = "59" > < span class = "lineNum" > 59 < / span > : }< / a >
< a name = "60" > < span class = "lineNum" > 60 < / span > : < / a >
< a name = "61" > < span class = "lineNum" > 61 < / span > : /**< / a >
< a name = "62" > < span class = "lineNum" > 62 < / span > : * @notice This function should update the fees for tornado instances< / a >
< a name = "63" > < span class = "lineNum" > 63 < / span > : * (here called pools)< / a >
< a name = "64" > < span class = "lineNum" > 64 < / span > : * @param _instances pool addresses to update fees for< / a >
< a name = "65" > < span class = "lineNum" > 65 < / span > : * */< / a >
< a name = "66" > < span class = "lineNum" > 66 < / span > : function updateFees(ITornadoInstance[] memory _instances) public {< / a >
< a name = "67" > < span class = "lineNum" > 67 < / span > < span class = "lineNoCov" > 0 : for (uint256 i = 0; i < _instances.length; i++) {< / span > < / a >
< a name = "68" > < span class = "lineNum" > 68 < / span > < span class = "lineNoCov" > 0 : updateFee(_instances[i]);< / span > < / a >
< a name = "69" > < span class = "lineNum" > 69 < / span > : }< / a >
< a name = "70" > < span class = "lineNum" > 70 < / span > : }< / a >
< a name = "71" > < span class = "lineNum" > 71 < / span > : < / a >
< a name = "72" > < span class = "lineNum" > 72 < / span > : /**< / a >
< a name = "73" > < span class = "lineNum" > 73 < / span > : * @notice This function should update the fee of a specific pool< / a >
< a name = "74" > < span class = "lineNum" > 74 < / span > : * @param _instance address of the pool to update fees for< / a >
< a name = "75" > < span class = "lineNum" > 75 < / span > : */< / a >
< a name = "76" > < span class = "lineNum" > 76 < / span > : function updateFee(ITornadoInstance _instance) public {< / a >
< a name = "77" > < span class = "lineNum" > 77 < / span > < span class = "lineNoCov" > 0 : uint160 newFee = calculatePoolFee(_instance);< / span > < / a >
< a name = "78" > < span class = "lineNum" > 78 < / span > < span class = "lineNoCov" > 0 : instanceFee[_instance] = newFee;< / span > < / a >
< a name = "79" > < span class = "lineNum" > 79 < / span > < span class = "lineNoCov" > 0 : instanceFeeUpdated[_instance] = now;< / span > < / a >
< a name = "80" > < span class = "lineNum" > 80 < / span > < span class = "lineNoCov" > 0 : emit FeeUpdated(address(_instance), newFee);< / span > < / a >
< a name = "81" > < span class = "lineNum" > 81 < / span > : }< / a >
< a name = "82" > < span class = "lineNum" > 82 < / span > : < / a >
< a name = "83" > < span class = "lineNum" > 83 < / span > : /**< / a >
< a name = "84" > < span class = "lineNum" > 84 < / span > : * @notice This function should return the fee of a specific pool and update it if the time has come< / a >
< a name = "85" > < span class = "lineNum" > 85 < / span > : * @param _instance address of the pool to get fees for< / a >
< a name = "86" > < span class = "lineNum" > 86 < / span > : */< / a >
< a name = "87" > < span class = "lineNum" > 87 < / span > : function instanceFeeWithUpdate(ITornadoInstance _instance) public returns (uint160) {< / a >
< a name = "88" > < span class = "lineNum" > 88 < / span > < span class = "lineNoCov" > 0 : if (now - instanceFeeUpdated[_instance] > updateFeeTimeLimit) {< / span > < / a >
< a name = "89" > < span class = "lineNum" > 89 < / span > < span class = "lineNoCov" > 0 : updateFee(_instance);< / span > < / a >
< a name = "90" > < span class = "lineNum" > 90 < / span > : }< / a >
< a name = "91" > < span class = "lineNum" > 91 < / span > < span class = "lineNoCov" > 0 : return instanceFee[_instance];< / span > < / a >
< a name = "92" > < span class = "lineNum" > 92 < / span > : }< / a >
< a name = "93" > < span class = "lineNum" > 93 < / span > : < / a >
< a name = "94" > < span class = "lineNum" > 94 < / span > : /**< / a >
< a name = "95" > < span class = "lineNum" > 95 < / span > : * @notice function to update a single fee entry< / a >
< a name = "96" > < span class = "lineNum" > 96 < / span > : * @param _instance instance for which to update data< / a >
< a name = "97" > < span class = "lineNum" > 97 < / span > : * @return newFee the new fee pool< / a >
< a name = "98" > < span class = "lineNum" > 98 < / span > : */< / a >
< a name = "99" > < span class = "lineNum" > 99 < / span > : function calculatePoolFee(ITornadoInstance _instance) public view returns (uint160) {< / a >
< a name = "100" > < span class = "lineNum" > 100 < / span > < span class = "lineNoCov" > 0 : (bool isERC20, IERC20 token, , uint24 uniswapPoolSwappingFee, uint32 protocolFeePercentage) = registry.instances(_instance);< / span > < / a >
< a name = "101" > < span class = "lineNum" > 101 < / span > < span class = "lineNoCov" > 0 : if (protocolFeePercentage == 0) {< / span > < / a >
< a name = "102" > < span class = "lineNum" > 102 < / span > < span class = "lineNoCov" > 0 : return 0;< / span > < / a >
< a name = "103" > < span class = "lineNum" > 103 < / span > : }< / a >
< a name = "104" > < span class = "lineNum" > 104 < / span > : < / a >
< a name = "105" > < span class = "lineNum" > 105 < / span > < span class = "lineNoCov" > 0 : token = token == IERC20(0) & & !isERC20 ? IERC20(UniswapV3OracleHelper.WETH) : token; // for eth instances< / span > < / a >
< a name = "106" > < span class = "lineNum" > 106 < / span > < span class = "lineNoCov" > 0 : uint256 tokenPriceRatio = UniswapV3OracleHelper.getPriceRatioOfTokens(< / span > < / a >
< a name = "107" > < span class = "lineNum" > 107 < / span > : [torn, address(token)],< / a >
< a name = "108" > < span class = "lineNum" > 108 < / span > : [uniswapTornPoolSwappingFee, uniswapPoolSwappingFee],< / a >
< a name = "109" > < span class = "lineNum" > 109 < / span > : uniswapTimePeriod< / a >
< a name = "110" > < span class = "lineNum" > 110 < / span > : );< / a >
< a name = "111" > < span class = "lineNum" > 111 < / span > : // prettier-ignore< / a >
< a name = "112" > < span class = "lineNum" > 112 < / span > < span class = "lineNoCov" > 0 : return< / span > < / a >
< a name = "113" > < span class = "lineNum" > 113 < / span > < span class = "lineNoCov" > 0 : uint160(< / span > < / a >
< a name = "114" > < span class = "lineNum" > 114 < / span > : _instance< / a >
< a name = "115" > < span class = "lineNum" > 115 < / span > : .denomination()< / a >
< a name = "116" > < span class = "lineNum" > 116 < / span > : .mul(UniswapV3OracleHelper.RATIO_DIVIDER)< / a >
< a name = "117" > < span class = "lineNum" > 117 < / span > : .div(tokenPriceRatio)< / a >
< a name = "118" > < span class = "lineNum" > 118 < / span > : .mul(uint256(protocolFeePercentage))< / a >
< a name = "119" > < span class = "lineNum" > 119 < / span > : .div(PROTOCOL_FEE_DIVIDER)< / 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 > : < / a >
< a name = "123" > < span class = "lineNum" > 123 < / span > : /**< / a >
< a name = "124" > < span class = "lineNum" > 124 < / span > : * @notice function to update the uniswap fee< / a >
< a name = "125" > < span class = "lineNum" > 125 < / span > : * @param _uniswapTornPoolSwappingFee new uniswap fee< / a >
< a name = "126" > < span class = "lineNum" > 126 < / span > : */< / a >
< a name = "127" > < span class = "lineNum" > 127 < / span > : function setUniswapTornPoolSwappingFee(uint24 _uniswapTornPoolSwappingFee) public onlyGovernance {< / a >
< a name = "128" > < span class = "lineNum" > 128 < / span > < span class = "lineNoCov" > 0 : uniswapTornPoolSwappingFee = _uniswapTornPoolSwappingFee;< / span > < / a >
< a name = "129" > < span class = "lineNum" > 129 < / span > < span class = "lineNoCov" > 0 : emit UniswapTornPoolSwappingFeeChanged(uniswapTornPoolSwappingFee);< / span > < / a >
< a name = "130" > < span class = "lineNum" > 130 < / span > : }< / a >
< a name = "131" > < span class = "lineNum" > 131 < / span > : < / a >
< a name = "132" > < span class = "lineNum" > 132 < / span > : /**< / a >
< a name = "133" > < span class = "lineNum" > 133 < / span > : * @notice This function should allow governance to set a new period for twap measurement< / a >
< a name = "134" > < span class = "lineNum" > 134 < / span > : * @param newPeriod the new period to use< / a >
< a name = "135" > < span class = "lineNum" > 135 < / span > : * */< / a >
< a name = "136" > < span class = "lineNum" > 136 < / span > : function setPeriodForTWAPOracle(uint32 newPeriod) external onlyGovernance {< / a >
< a name = "137" > < span class = "lineNum" > 137 < / span > < span class = "lineNoCov" > 0 : uniswapTimePeriod = newPeriod;< / span > < / a >
< a name = "138" > < span class = "lineNum" > 138 < / span > : }< / a >
< a name = "139" > < span class = "lineNum" > 139 < / span > : < / a >
< a name = "140" > < span class = "lineNum" > 140 < / span > : /**< / a >
< a name = "141" > < span class = "lineNum" > 141 < / span > : * @notice This function should allow governance to set a new update fee time limit for instance fee updating< / a >
< a name = "142" > < span class = "lineNum" > 142 < / span > : * @param newLimit the new time limit to use< / a >
< a name = "143" > < span class = "lineNum" > 143 < / span > : * */< / a >
< a name = "144" > < span class = "lineNum" > 144 < / span > : function setUpdateFeeTimeLimit(uint24 newLimit) external onlyGovernance {< / a >
< a name = "145" > < span class = "lineNum" > 145 < / span > < span class = "lineNoCov" > 0 : updateFeeTimeLimit = newLimit;< / span > < / a >
< a name = "146" > < span class = "lineNum" > 146 < / span > : }< / a >
< a name = "147" > < span class = "lineNum" > 147 < / span > : < / a >
< a name = "148" > < span class = "lineNum" > 148 < / span > : /**< / a >
< a name = "149" > < span class = "lineNum" > 149 < / span > : * @notice returns fees deviations for each instance, so it can be easily seen what instance requires an update< / a >
< a name = "150" > < span class = "lineNum" > 150 < / span > : */< / a >
< a name = "151" > < span class = "lineNum" > 151 < / span > : function feeDeviations() public view returns (Deviation[] memory results) {< / a >
< a name = "152" > < span class = "lineNum" > 152 < / span > < span class = "lineNoCov" > 0 : ITornadoInstance[] memory instances = registry.getAllInstanceAddresses();< / span > < / a >
< a name = "153" > < span class = "lineNum" > 153 < / span > < span class = "lineNoCov" > 0 : results = new Deviation[](instances.length);< / span > < / a >
< a name = "154" > < span class = "lineNum" > 154 < / span > : < / a >
< a name = "155" > < span class = "lineNum" > 155 < / span > < span class = "lineNoCov" > 0 : for (uint256 i = 0; i < instances.length; i++) {< / span > < / a >
< a name = "156" > < span class = "lineNum" > 156 < / span > < span class = "lineNoCov" > 0 : uint256 marketFee = calculatePoolFee(instances[i]);< / span > < / a >
< a name = "157" > < span class = "lineNum" > 157 < / span > < span class = "lineNoCov" > 0 : int256 deviation;< / span > < / a >
< a name = "158" > < span class = "lineNum" > 158 < / span > < span class = "lineNoCov" > 0 : if (marketFee != 0) {< / span > < / a >
< a name = "159" > < span class = "lineNum" > 159 < / span > < span class = "lineNoCov" > 0 : deviation = int256((instanceFee[instances[i]] * 1000) / marketFee) - 1000;< / span > < / a >
< a name = "160" > < span class = "lineNum" > 160 < / span > : }< / a >
< a name = "161" > < span class = "lineNum" > 161 < / span > : < / a >
< a name = "162" > < span class = "lineNum" > 162 < / span > < span class = "lineNoCov" > 0 : results[i] = Deviation({ instance: address(instances[i]), deviation: deviation });< / span > < / a >
< a name = "163" > < span class = "lineNum" > 163 < / span > : }< / a >
< a name = "164" > < span class = "lineNum" > 164 < / span > : }< / a >
< a name = "165" > < span class = "lineNum" > 165 < / 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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