Contract Source Code (Solidity)

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Outline

• interface AggregatorInterface
•    - function latestAnswer()
•    - function latestTimestamp()
•    - function latestRound()
•    - function getAnswer(uint256 roundId)
•    - function getTimestamp(uint256 roundId ...
• library SafeMath
•    - function add(uint256 a, uint256 b)
•    - function sub(uint256 a, uint256 b)
•    - function sub(uint256 a, uint256 b, st ...
•    - function mul(uint256 a, uint256 b)
•    - function div(uint256 a, uint256 b)
•    - function div(uint256 a, uint256 b, st ...
•    - function mod(uint256 a, uint256 b)
•    - function mod(uint256 a, uint256 b, st ...
•  contract ToMaticOracle *
•    - function latestAnswer()
•    - function toInt256(uint256 value)
•    - function toUint256(int256 value)

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/**
 *Submitted for verification at polygonscan.com on 2021-11-23
*/

pragma solidity 0.5.14;


interface AggregatorInterface {
  function latestAnswer() external view returns (int256);
  function latestTimestamp() external view returns (uint256);
  function latestRound() external view returns (uint256);
  function getAnswer(uint256 roundId) external view returns (int256);
  function getTimestamp(uint256 roundId) external view returns (uint256);

  event AnswerUpdated(int256 indexed current, uint256 indexed roundId, uint256 timestamp);
  event NewRound(uint256 indexed roundId, address indexed startedBy);
}

library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     * - Subtraction cannot overflow.
     *
     * _Available since v2.4.0._
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     *
     * _Available since v2.4.0._
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        // Solidity only automatically asserts when dividing by 0
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     *
     * _Available since v2.4.0._
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

// SPDX-License-Identifier: BUSL-1.1
contract ToMaticOracle {
    using SafeMath for uint256;
    string public tokenPairName;
    string public maticPairName;
    string public targetPairName;
    // example pair DAI/ETH
    AggregatorInterface public tokenPriceOracle;
    // example pair MATIC/ETH
    AggregatorInterface public maticPriceOracle;

    constructor(
        string memory _targetPairName,
        string memory _tokenPairName,
        AggregatorInterface _tokenPriceOracle,
        string memory _maticPairName,
        AggregatorInterface _maticPriceOracle
    ) public {
        targetPairName = _targetPairName;

        // pair1
        tokenPairName = _tokenPairName;
        tokenPriceOracle = _tokenPriceOracle;

        // pair2
        maticPairName = _maticPairName;
        maticPriceOracle = _maticPriceOracle;
    }

    function latestAnswer() external view returns (int256) {
        // 1 DAI rate is represented in ETH
        uint256 tokenPrice = toUint256(tokenPriceOracle.latestAnswer());
        // 1 MATIC rate is repsented in ETH
        uint256 maticPrice = toUint256(maticPriceOracle.latestAnswer());
        // number of MATIC in 1 ETH
        // `10^18 / maticPrice = X`   number of MATIC
        // `tokenPrice * X` = DAI/MATIC rate
        return toInt256(tokenPrice.mul(10**18).div(maticPrice));

    }

    function toInt256(uint256 value) internal pure returns (int256) {
        require(value < uint256(-1), "value doesn\'t fit in 256 bits");
        return int256(value);
    }

    function toUint256(int256 value) internal pure returns (uint256) {
        require(value >= 0, "value must be positive");
        return uint256(value);
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

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

-----Decoded View---------------
Arg [0] : _targetPairName (string): DAI/MATIC
Arg [1] : _tokenPairName (string): DAI/ETH
Arg [2] : _tokenPriceOracle (address): 0xFC539A559e170f848323e19dfD66007520510085
Arg [3] : _maticPairName (string): MATIC/ETH
Arg [4] : _maticPriceOracle (address): 0x327e23A4855b6F663a28c5161541d69Af8973302

-----Encoded View---------------
11 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000e0
Arg [2] : 000000000000000000000000fc539a559e170f848323e19dfd66007520510085
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000120
Arg [4] : 000000000000000000000000327e23a4855b6f663a28c5161541d69af8973302
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000009
Arg [6] : 4441492f4d415449430000000000000000000000000000000000000000000000
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000007
Arg [8] : 4441492f45544800000000000000000000000000000000000000000000000000
Arg [9] : 0000000000000000000000000000000000000000000000000000000000000009
Arg [10] : 4d415449432f4554480000000000000000000000000000000000000000000000

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bzzr://c9150160820586cb2c9e00ddd0dd05d28e3ecb3faa64b0a12ec2869b3d274878