Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta

More Options

• Similar
• Submit Audit
• Compare

pragma solidity =0.5.16;

import "./interfaces/ISolidlyBaseV1Pair.sol";
import "./interfaces/ITarotSolidlyPriceOracleV2.sol";

contract TarotSolidlyPriceOracleV2 is ITarotSolidlyPriceOracleV2 {
    uint32 public constant MIN_T = 900;

    function safe112(uint256 n) internal pure returns (uint112) {
        require(n < 2**112, "TarotSolidlyPriceOracleV2: SAFE112");
        return uint112(n);
    }

    function getResult(address pair) external returns (uint112 reserve0, uint112 reserve1, uint32 T) {
        (
            uint256 reserve0CumulativeCurrent,
            uint256 reserve1CumulativeCurrent,
            uint256 blockTimestampCurrent
        ) = ISolidlyBaseV1Pair(pair).currentCumulativePrices();
        uint256 observationLength = ISolidlyBaseV1Pair(pair).observationLength();
        (
            uint256 blockTimestampLast,
            uint256 reserve0CumulativeLast,
            uint256 reserve1CumulativeLast
        ) = ISolidlyBaseV1Pair(pair).observations(observationLength - 1);
        T = uint32(blockTimestampCurrent - blockTimestampLast);
        if (T < MIN_T) {
            (
                blockTimestampLast,
                reserve0CumulativeLast,
                reserve1CumulativeLast
            ) = ISolidlyBaseV1Pair(pair).observations(observationLength - 2);
            T = uint32(blockTimestampCurrent - blockTimestampLast);
        }
        reserve0 = safe112((reserve0CumulativeCurrent - reserve0CumulativeLast) / T);
        reserve1 = safe112((reserve1CumulativeCurrent - reserve1CumulativeLast) / T);
    }
}

pragma solidity >=0.5;

interface ISolidlyBaseV1Pair {
    function getReserves()
        external
        view
        returns (
            uint112 _reserve0,
            uint112 _reserve1,
            uint32 _blockTimestampLast
        );

    function reserve0CumulativeLast() external view returns (uint256);

    function reserve1CumulativeLast() external view returns (uint256);

    function currentCumulativePrices()
        external
        view
        returns (
            uint256 reserve0Cumulative,
            uint256 reserve1Cumulative,
            uint256 blockTimestamp
        );

    function stable() external view returns (bool);

    function observationLength() external view returns (uint256);

    function observations(uint256) external view returns (uint256 timestamp, uint256 reserve0Cumulative, uint256 reserve1Cumulative);
}

pragma solidity >=0.5;

interface ITarotSolidlyPriceOracleV2 {
    function MIN_T() external pure returns (uint32);

    function getResult(address pair) external returns (uint112 reserve0, uint112 reserve1, uint32 T);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 10000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"constant":true,"inputs":[],"name":"MIN_T","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"pair","type":"address"}],"name":"getResult","outputs":[{"internalType":"uint112","name":"reserve0","type":"uint112"},{"internalType":"uint112","name":"reserve1","type":"uint112"},{"internalType":"uint32","name":"T","type":"uint32"}],"payable":false,"stateMutability":"nonpayable","type":"function"}]

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