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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

import "../core/libraries/math/PMath.sol";
import "../interfaces/IPExchangeRateOracle.sol";
import "../interfaces/IRedstonePriceFeed.sol";

contract PendleRedStoneRateOracleAdapter is IPExchangeRateOracle {
    using PMath for int256;

    address public immutable oracle;
    uint8 public immutable decimals;
    uint8 public immutable rawDecimals;

    constructor(address _redStoneOracle, uint8 _decimals) {
        oracle = _redStoneOracle;
        decimals = _decimals;
        rawDecimals = IRedstonePriceFeed(_redStoneOracle).decimals();
    }

    function getExchangeRate() external view returns (uint256) {
        int256 answer = IRedstonePriceFeed(oracle).latestAnswer();
        return (answer.Uint() * 10 ** decimals) / 10 ** rawDecimals;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface AggregatorV3Interface {
  function decimals() external view returns (uint8);

  function description() external view returns (string memory);

  function version() external view returns (uint256);

  function getRoundData(
    uint80 _roundId
  ) external view returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);

  function latestRoundData()
    external
    view
    returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);
}

// SPDX-License-Identifier: GPL-3.0-or-later
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

pragma solidity ^0.8.0;

/* solhint-disable private-vars-leading-underscore, reason-string */

library PMath {
    uint256 internal constant ONE = 1e18; // 18 decimal places
    int256 internal constant IONE = 1e18; // 18 decimal places

    function subMax0(uint256 a, uint256 b) internal pure returns (uint256) {
        unchecked {
            return (a >= b ? a - b : 0);
        }
    }

    function subNoNeg(int256 a, int256 b) internal pure returns (int256) {
        require(a >= b, "negative");
        return a - b; // no unchecked since if b is very negative, a - b might overflow
    }

    function mulDown(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 product = a * b;
        unchecked {
            return product / ONE;
        }
    }

    function mulDown(int256 a, int256 b) internal pure returns (int256) {
        int256 product = a * b;
        unchecked {
            return product / IONE;
        }
    }

    function divDown(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 aInflated = a * ONE;
        unchecked {
            return aInflated / b;
        }
    }

    function divDown(int256 a, int256 b) internal pure returns (int256) {
        int256 aInflated = a * IONE;
        unchecked {
            return aInflated / b;
        }
    }

    function rawDivUp(uint256 a, uint256 b) internal pure returns (uint256) {
        return (a + b - 1) / b;
    }

    function rawDivUp(int256 a, int256 b) internal pure returns (int256) {
        return (a + b - 1) / b;
    }

    // @author Uniswap
    function sqrt(uint256 y) internal pure returns (uint256 z) {
        if (y > 3) {
            z = y;
            uint256 x = y / 2 + 1;
            while (x < z) {
                z = x;
                x = (y / x + x) / 2;
            }
        } else if (y != 0) {
            z = 1;
        }
    }

    function square(uint256 x) internal pure returns (uint256) {
        return x * x;
    }

    function squareDown(uint256 x) internal pure returns (uint256) {
        return mulDown(x, x);
    }

    function abs(int256 x) internal pure returns (uint256) {
        return uint256(x > 0 ? x : -x);
    }

    function neg(int256 x) internal pure returns (int256) {
        return x * (-1);
    }

    function neg(uint256 x) internal pure returns (int256) {
        return Int(x) * (-1);
    }

    function max(uint256 x, uint256 y) internal pure returns (uint256) {
        return (x > y ? x : y);
    }

    function max(int256 x, int256 y) internal pure returns (int256) {
        return (x > y ? x : y);
    }

    function min(uint256 x, uint256 y) internal pure returns (uint256) {
        return (x < y ? x : y);
    }

    function min(int256 x, int256 y) internal pure returns (int256) {
        return (x < y ? x : y);
    }

    /*///////////////////////////////////////////////////////////////
                               SIGNED CASTS
    //////////////////////////////////////////////////////////////*/

    function Int(uint256 x) internal pure returns (int256) {
        require(x <= uint256(type(int256).max));
        return int256(x);
    }

    function Int128(int256 x) internal pure returns (int128) {
        require(type(int128).min <= x && x <= type(int128).max);
        return int128(x);
    }

    function Int128(uint256 x) internal pure returns (int128) {
        return Int128(Int(x));
    }

    /*///////////////////////////////////////////////////////////////
                               UNSIGNED CASTS
    //////////////////////////////////////////////////////////////*/

    function Uint(int256 x) internal pure returns (uint256) {
        require(x >= 0);
        return uint256(x);
    }

    function Uint32(uint256 x) internal pure returns (uint32) {
        require(x <= type(uint32).max);
        return uint32(x);
    }

    function Uint64(uint256 x) internal pure returns (uint64) {
        require(x <= type(uint64).max);
        return uint64(x);
    }

    function Uint112(uint256 x) internal pure returns (uint112) {
        require(x <= type(uint112).max);
        return uint112(x);
    }

    function Uint96(uint256 x) internal pure returns (uint96) {
        require(x <= type(uint96).max);
        return uint96(x);
    }

    function Uint128(uint256 x) internal pure returns (uint128) {
        require(x <= type(uint128).max);
        return uint128(x);
    }

    function Uint192(uint256 x) internal pure returns (uint192) {
        require(x <= type(uint192).max);
        return uint192(x);
    }

    function isAApproxB(uint256 a, uint256 b, uint256 eps) internal pure returns (bool) {
        return mulDown(b, ONE - eps) <= a && a <= mulDown(b, ONE + eps);
    }

    function isAGreaterApproxB(uint256 a, uint256 b, uint256 eps) internal pure returns (bool) {
        return a >= b && a <= mulDown(b, ONE + eps);
    }

    function isASmallerApproxB(uint256 a, uint256 b, uint256 eps) internal pure returns (bool) {
        return a <= b && a >= mulDown(b, ONE - eps);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IPExchangeRateOracle {
    function getExchangeRate() external view returns (uint256);
}

pragma solidity ^0.8.0;

import {AggregatorV3Interface} from "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";

interface IRedstonePriceFeed is AggregatorV3Interface {
    /**
     * @notice Old Chainlink function for getting the number of latest round
     * @return latestRound The number of the latest update round
     */
    function latestRound() external view returns (uint80);

    /**
     * @notice Old Chainlink function for getting the latest successfully reported value
     * @return latestAnswer The latest successfully reported value
     */
    function latestAnswer() external view returns (int256);
}

{
  "evmVersion": "paris",
  "libraries": {},
  "optimizer": {
    "enabled": true,
    "runs": 1000000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "viaIR": true
}

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[{"inputs":[{"internalType":"address","name":"_redStoneOracle","type":"address"},{"internalType":"uint8","name":"_decimals","type":"uint8"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getExchangeRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"oracle","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rawDecimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"}]

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

0000000000000000000000009b2c948dba5952a1f5ab6fa16101c1392b8da1ab0000000000000000000000000000000000000000000000000000000000000012

-----Decoded View---------------
Arg [0] : _redStoneOracle (address): 0x9b2C948dbA5952A1f5Ab6fA16101c1392b8da1ab
Arg [1] : _decimals (uint8): 18

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000009b2c948dba5952a1f5ab6fa16101c1392b8da1ab
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000012