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Contract

0xe48A55d967877191B3239be092643faD3a3D3600

Overview

ETH Balance

0 ETH

Multichain Info

N/A
Transaction Hash
Method
Block
From
To
Value
0x6080604032635962023-04-10 14:00:36378 days ago1681135236IN
 Contract Creation
0 ETH00.00000001

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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0xb6EEaFb1...3c46D7121
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
GhoDiscountRateStrategy

Compiler Version
v0.8.10+commit.fc410830

Optimization Enabled:
Yes with 100000 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 3 : GhoDiscountRateStrategy.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;

import {WadRayMath} from '@aave/core-v3/contracts/protocol/libraries/math/WadRayMath.sol';
import {IGhoDiscountRateStrategy} from './interfaces/IGhoDiscountRateStrategy.sol';

/**
 * @title GhoDiscountRateStrategy contract
 * @author Aave
 * @notice Implements the calculation of the discount rate depending on the current strategy
 */
contract GhoDiscountRateStrategy is IGhoDiscountRateStrategy {
  using WadRayMath for uint256;

  /**
   * @dev Amount of debt that is entitled to get a discount per unit of discount token
   * Expressed with the number of decimals of the discounted token
   */
  uint256 public constant GHO_DISCOUNTED_PER_DISCOUNT_TOKEN = 100e18;

  /**
   * @dev Percentage of discount to apply to the part of the debt that is entitled to get a discount
   * Expressed in bps, a value of 2000 results in 20.00%
   */
  uint256 public constant DISCOUNT_RATE = 0.2e4;

  /**
   * @dev Minimum balance amount of discount token to be entitled to a discount
   * Expressed with the number of decimals of the discount token
   */
  uint256 public constant MIN_DISCOUNT_TOKEN_BALANCE = 1e18;

  /**
   * @dev Minimum balance amount of debt token to be entitled to a discount
   * Expressed with the number of decimals of the debt token
   */
  uint256 public constant MIN_DEBT_TOKEN_BALANCE = 1e18;

  /// @inheritdoc IGhoDiscountRateStrategy
  function calculateDiscountRate(
    uint256 debtBalance,
    uint256 discountTokenBalance
  ) external pure override returns (uint256) {
    if (discountTokenBalance < MIN_DISCOUNT_TOKEN_BALANCE || debtBalance < MIN_DEBT_TOKEN_BALANCE) {
      return 0;
    } else {
      uint256 discountedBalance = discountTokenBalance.wadMul(GHO_DISCOUNTED_PER_DISCOUNT_TOKEN);
      if (discountedBalance >= debtBalance) {
        return DISCOUNT_RATE;
      } else {
        return (discountedBalance * DISCOUNT_RATE) / debtBalance;
      }
    }
  }
}

File 2 of 3 : WadRayMath.sol
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.0;

/**
 * @title WadRayMath library
 * @author Aave
 * @notice Provides functions to perform calculations with Wad and Ray units
 * @dev Provides mul and div function for wads (decimal numbers with 18 digits of precision) and rays (decimal numbers
 * with 27 digits of precision)
 * @dev Operations are rounded. If a value is >=.5, will be rounded up, otherwise rounded down.
 */
library WadRayMath {
  // HALF_WAD and HALF_RAY expressed with extended notation as constant with operations are not supported in Yul assembly
  uint256 internal constant WAD = 1e18;
  uint256 internal constant HALF_WAD = 0.5e18;

  uint256 internal constant RAY = 1e27;
  uint256 internal constant HALF_RAY = 0.5e27;

  uint256 internal constant WAD_RAY_RATIO = 1e9;

  /**
   * @dev Multiplies two wad, rounding half up to the nearest wad
   * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
   * @param a Wad
   * @param b Wad
   * @return c = a*b, in wad
   */
  function wadMul(uint256 a, uint256 b) internal pure returns (uint256 c) {
    // to avoid overflow, a <= (type(uint256).max - HALF_WAD) / b
    assembly {
      if iszero(or(iszero(b), iszero(gt(a, div(sub(not(0), HALF_WAD), b))))) {
        revert(0, 0)
      }

      c := div(add(mul(a, b), HALF_WAD), WAD)
    }
  }

  /**
   * @dev Divides two wad, rounding half up to the nearest wad
   * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
   * @param a Wad
   * @param b Wad
   * @return c = a/b, in wad
   */
  function wadDiv(uint256 a, uint256 b) internal pure returns (uint256 c) {
    // to avoid overflow, a <= (type(uint256).max - halfB) / WAD
    assembly {
      if or(iszero(b), iszero(iszero(gt(a, div(sub(not(0), div(b, 2)), WAD))))) {
        revert(0, 0)
      }

      c := div(add(mul(a, WAD), div(b, 2)), b)
    }
  }

  /**
   * @notice Multiplies two ray, rounding half up to the nearest ray
   * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
   * @param a Ray
   * @param b Ray
   * @return c = a raymul b
   */
  function rayMul(uint256 a, uint256 b) internal pure returns (uint256 c) {
    // to avoid overflow, a <= (type(uint256).max - HALF_RAY) / b
    assembly {
      if iszero(or(iszero(b), iszero(gt(a, div(sub(not(0), HALF_RAY), b))))) {
        revert(0, 0)
      }

      c := div(add(mul(a, b), HALF_RAY), RAY)
    }
  }

  /**
   * @notice Divides two ray, rounding half up to the nearest ray
   * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
   * @param a Ray
   * @param b Ray
   * @return c = a raydiv b
   */
  function rayDiv(uint256 a, uint256 b) internal pure returns (uint256 c) {
    // to avoid overflow, a <= (type(uint256).max - halfB) / RAY
    assembly {
      if or(iszero(b), iszero(iszero(gt(a, div(sub(not(0), div(b, 2)), RAY))))) {
        revert(0, 0)
      }

      c := div(add(mul(a, RAY), div(b, 2)), b)
    }
  }

  /**
   * @dev Casts ray down to wad
   * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
   * @param a Ray
   * @return b = a converted to wad, rounded half up to the nearest wad
   */
  function rayToWad(uint256 a) internal pure returns (uint256 b) {
    assembly {
      b := div(a, WAD_RAY_RATIO)
      let remainder := mod(a, WAD_RAY_RATIO)
      if iszero(lt(remainder, div(WAD_RAY_RATIO, 2))) {
        b := add(b, 1)
      }
    }
  }

  /**
   * @dev Converts wad up to ray
   * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
   * @param a Wad
   * @return b = a converted in ray
   */
  function wadToRay(uint256 a) internal pure returns (uint256 b) {
    // to avoid overflow, b/WAD_RAY_RATIO == a
    assembly {
      b := mul(a, WAD_RAY_RATIO)

      if iszero(eq(div(b, WAD_RAY_RATIO), a)) {
        revert(0, 0)
      }
    }
  }
}

File 4 of 3 : IGhoDiscountRateStrategy.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/**
 * @title IGhoDiscountRateStrategy
 * @author Aave
 * @notice Defines the basic interface of the GhoDiscountRateStrategy
 */
interface IGhoDiscountRateStrategy {
  /**
   * @notice Calculates the discount rate depending on the debt and discount token balances
   * @param debtBalance The debt balance of the user
   * @param discountTokenBalance The discount token balance of the user
   * @return The discount rate, as a percentage - the maximum can be 10000 = 100.00%
   */
  function calculateDiscountRate(
    uint256 debtBalance,
    uint256 discountTokenBalance
  ) external view returns (uint256);
}

Settings
{
  "evmVersion": "london",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 100000
  },
  "remappings": [],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

Contract ABI

[{"inputs":[],"name":"DISCOUNT_RATE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"GHO_DISCOUNTED_PER_DISCOUNT_TOKEN","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MIN_DEBT_TOKEN_BALANCE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MIN_DISCOUNT_TOKEN_BALANCE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"debtBalance","type":"uint256"},{"internalType":"uint256","name":"discountTokenBalance","type":"uint256"}],"name":"calculateDiscountRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"pure","type":"function"}]

Deployed Bytecode

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