Contract 0x3ee46D3d70474273E47587D05c9db49203955B10 8

pragma solidity ^0.5.16;

import "./BaseImmutableJumpRateModel.sol";
import "./InterestRateModel.sol";


/**
  * @title Compound's JumpRateModel Contract V2 for V2 cTokens
  * @author Arr00
  * @notice Supports only for V2 cTokens
  */
contract ImmutableJumpRateModel is InterestRateModel, BaseImmutableJumpRateModel  {

	/**
     * @notice Calculates the current borrow rate per block
     * @param cash The amount of cash in the market
     * @param borrows The amount of borrows in the market
     * @param reserves The amount of reserves in the market
     * @return The borrow rate percentage per block as a mantissa (scaled by 1e18)
     */
    function getBorrowRate(uint cash, uint borrows, uint reserves) external view returns (uint) {
        return getBorrowRateInternal(cash, borrows, reserves);
    }

    constructor(uint blocksPerYear_, uint baseRatePerYear, uint multiplierPerYear, uint jumpMultiplierPerYear, uint kink_)
        BaseImmutableJumpRateModel(blocksPerYear_, baseRatePerYear,multiplierPerYear,jumpMultiplierPerYear,kink_) public {}
}

pragma solidity ^0.5.16;

import "../../Math/SafeMath.sol";

/**
  * @title Logic for immutable JumpRateModel.
  * @author Ola
  */
contract BaseImmutableJumpRateModel {
    using SafeMath for uint;

    event NewInterestParams(uint baseRatePerBlock, uint multiplierPerBlock, uint jumpMultiplierPerBlock, uint kink);

    /**
     * @notice The approximate number of blocks per year that is assumed by the interest rate model
     */
    uint public blocksPerYear;

    /**
     * @notice The multiplier of utilization rate that gives the slope of the interest rate
     */
    uint public multiplierPerBlock;

    /**
     * @notice The base interest rate which is the y-intercept when utilization rate is 0
     */
    uint public baseRatePerBlock;

    /**
     * @notice The multiplierPerBlock after hitting a specified utilization point
     */
    uint public jumpMultiplierPerBlock;

    /**
     * @notice The utilization point at which the jump multiplier is applied
     */
    uint public kink;

    /**
     * @notice Construct an immutable interest rate model
     * @param blocksPerYear_ The approximate number of blocks per year that is assumed by the interest rate model
     * @param baseRatePerYear The approximate target base APR, as a mantissa (scaled by 1e18)
     * @param multiplierPerYear The rate of increase in interest rate wrt utilization (scaled by 1e18)
     * @param jumpMultiplierPerYear The multiplierPerBlock after hitting a specified utilization point
     * @param kink_ The utilization point at which the jump multiplier is applied
     */
    constructor(uint blocksPerYear_, uint baseRatePerYear, uint multiplierPerYear, uint jumpMultiplierPerYear, uint kink_) internal {
        blocksPerYear = blocksPerYear_;

        updateJumpRateModelInternal(baseRatePerYear,  multiplierPerYear, jumpMultiplierPerYear, kink_);
    }

    /**
     * @notice Calculates the utilization rate of the market: `borrows / (cash + borrows - reserves)`
     * @param cash The amount of cash in the market
     * @param borrows The amount of borrows in the market
     * @param reserves The amount of reserves in the market (currently unused)
     * @return The utilization rate as a mantissa between [0, 1e18]
     */
    function utilizationRate(uint cash, uint borrows, uint reserves) public pure returns (uint) {
        // Utilization rate is 0 when there are no borrows
        if (borrows == 0) {
            return 0;
        }

        return borrows.mul(1e18).div(cash.add(borrows).sub(reserves));
    }

    /**
     * @notice Calculates the current borrow rate per block, with the error code expected by the market
     * @param cash The amount of cash in the market
     * @param borrows The amount of borrows in the market
     * @param reserves The amount of reserves in the market
     * @return The borrow rate percentage per block as a mantissa (scaled by 1e18)
     */
    function getBorrowRateInternal(uint cash, uint borrows, uint reserves) internal view returns (uint) {
        uint util = utilizationRate(cash, borrows, reserves);

        if (util <= kink) {
            return util.mul(multiplierPerBlock).div(1e18).add(baseRatePerBlock);
        } else {
            uint normalRate = kink.mul(multiplierPerBlock).div(1e18).add(baseRatePerBlock);
            uint excessUtil = util.sub(kink);
            return excessUtil.mul(jumpMultiplierPerBlock).div(1e18).add(normalRate);
        }
    }

    /**
     * @notice Calculates the current supply rate per block
     * @param cash The amount of cash in the market
     * @param borrows The amount of borrows in the market
     * @param reserves The amount of reserves in the market
     * @param reserveFactorMantissa The current reserve factor for the market
     * @return The supply rate percentage per block as a mantissa (scaled by 1e18)
     */
    function getSupplyRate(uint cash, uint borrows, uint reserves, uint reserveFactorMantissa) public view returns (uint) {
        uint oneMinusReserveFactor = uint(1e18).sub(reserveFactorMantissa);
        uint borrowRate = getBorrowRateInternal(cash, borrows, reserves);
        uint rateToPool = borrowRate.mul(oneMinusReserveFactor).div(1e18);
        return utilizationRate(cash, borrows, reserves).mul(rateToPool).div(1e18);
    }

    /**
     * @notice Internal function to update the parameters of the interest rate model
     * @param baseRatePerYear The approximate target base APR, as a mantissa (scaled by 1e18)
     * @param multiplierPerYear The rate of increase in interest rate wrt utilization (scaled by 1e18)
     * @param jumpMultiplierPerYear The multiplierPerBlock after hitting a specified utilization point
     * @param kink_ The utilization point at which the jump multiplier is applied
     */
    function updateJumpRateModelInternal(uint baseRatePerYear, uint multiplierPerYear, uint jumpMultiplierPerYear, uint kink_) internal {
        baseRatePerBlock = baseRatePerYear.div(blocksPerYear);
        multiplierPerBlock = (multiplierPerYear.mul(1e18)).div(blocksPerYear.mul(kink_));
        jumpMultiplierPerBlock = jumpMultiplierPerYear.div(blocksPerYear);
        kink = kink_;

        emit NewInterestParams(baseRatePerBlock, multiplierPerBlock, jumpMultiplierPerBlock, kink);
    }
}

pragma solidity ^0.5.16;

/**
  * @title Compound's InterestRateModel Interface
  * @author Compound
  */
contract InterestRateModel {
    /// @notice Indicator that this is an InterestRateModel contract (for inspection)
    bool public constant isInterestRateModel = true;

    /**
      * @notice Calculates the current borrow interest rate per block
      * @param cash The total amount of cash the market has
      * @param borrows The total amount of borrows the market has outstanding
      * @param reserves The total amount of reserves the market has
      * @return The borrow rate per block (as a percentage, and scaled by 1e18)
      */
    function getBorrowRate(uint cash, uint borrows, uint reserves) external view returns (uint);

    /**
      * @notice Calculates the current supply interest rate per block
      * @param cash The total amount of cash the market has
      * @param borrows The total amount of borrows the market has outstanding
      * @param reserves The total amount of reserves the market has
      * @param reserveFactorMantissa The current reserve factor the market has
      * @return The supply rate per block (as a percentage, and scaled by 1e18)
      */
    function getSupplyRate(uint cash, uint borrows, uint reserves, uint reserveFactorMantissa) external view returns (uint);

}

pragma solidity ^0.5.16;

// From https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/math/Math.sol
// Subject to the MIT license.

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
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 addition of two unsigned integers, reverting with custom message on overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, errorMessage);

        return c;
    }

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

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on underflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     * - Subtraction cannot underflow.
     */
    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 multiplication of two unsigned integers, reverting on overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b, string memory errorMessage) 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, errorMessage);

        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.
     */
    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.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

[{"inputs":[{"internalType":"uint256","name":"blocksPerYear_","type":"uint256"},{"internalType":"uint256","name":"baseRatePerYear","type":"uint256"},{"internalType":"uint256","name":"multiplierPerYear","type":"uint256"},{"internalType":"uint256","name":"jumpMultiplierPerYear","type":"uint256"},{"internalType":"uint256","name":"kink_","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"baseRatePerBlock","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"multiplierPerBlock","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"jumpMultiplierPerBlock","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"kink","type":"uint256"}],"name":"NewInterestParams","type":"event"},{"constant":true,"inputs":[],"name":"baseRatePerBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"blocksPerYear","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"cash","type":"uint256"},{"internalType":"uint256","name":"borrows","type":"uint256"},{"internalType":"uint256","name":"reserves","type":"uint256"}],"name":"getBorrowRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"cash","type":"uint256"},{"internalType":"uint256","name":"borrows","type":"uint256"},{"internalType":"uint256","name":"reserves","type":"uint256"},{"internalType":"uint256","name":"reserveFactorMantissa","type":"uint256"}],"name":"getSupplyRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"isInterestRateModel","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"jumpMultiplierPerBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"kink","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"multiplierPerBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"cash","type":"uint256"},{"internalType":"uint256","name":"borrows","type":"uint256"},{"internalType":"uint256","name":"reserves","type":"uint256"}],"name":"utilizationRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"}]

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

0000000000000000000000000000000000000000000000000000000001e1338000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000152a76c222eca000000000000000000000000000000000000000000000000008b76ce9bc8535e000000000000000000000000000000000000000000000000000c7d713b49da0000

-----Decoded View---------------
Arg [0] : blocksPerYear_ (uint256): 31536000
Arg [1] : baseRatePerYear (uint256): 0
Arg [2] : multiplierPerYear (uint256): 95322625000000000
Arg [3] : jumpMultiplierPerYear (uint256): 10049446787000000000
Arg [4] : kink_ (uint256): 900000000000000000

-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000001e13380
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [2] : 0000000000000000000000000000000000000000000000000152a76c222eca00
Arg [3] : 0000000000000000000000000000000000000000000000008b76ce9bc8535e00
Arg [4] : 0000000000000000000000000000000000000000000000000c7d713b49da0000