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Contract Name:
DefaultReserveInterestRateStrategy
Compiler Version
v0.6.12+commit.27d51765
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; import {SafeMath} from '../../dependencies/openzeppelin/contracts/SafeMath.sol'; import {IReserveInterestRateStrategy} from '../../interfaces/IReserveInterestRateStrategy.sol'; import {WadRayMath} from '../libraries/math/WadRayMath.sol'; import {PercentageMath} from '../libraries/math/PercentageMath.sol'; import {ILendingPoolAddressesProvider} from '../../interfaces/ILendingPoolAddressesProvider.sol'; import {ILendingRateOracle} from '../../interfaces/ILendingRateOracle.sol'; /** * @title DefaultReserveInterestRateStrategy contract * @notice Implements the calculation of the interest rates depending on the reserve state * @dev The model of interest rate is based on 2 slopes, one before the `OPTIMAL_UTILIZATION_RATE` * point of utilization and another from that one to 100% * - An instance of this same contract, can't be used across different Aave markets, due to the caching * of the LendingPoolAddressesProvider * @author Aave **/ contract DefaultReserveInterestRateStrategy is IReserveInterestRateStrategy { using WadRayMath for uint256; using SafeMath for uint256; using PercentageMath for uint256; /** * @dev this constant represents the utilization rate at which the pool aims to obtain most competitive borrow rates. * Expressed in ray **/ uint256 public immutable OPTIMAL_UTILIZATION_RATE; /** * @dev This constant represents the excess utilization rate above the optimal. It's always equal to * 1-optimal utilization rate. Added as a constant here for gas optimizations. * Expressed in ray **/ uint256 public immutable EXCESS_UTILIZATION_RATE; ILendingPoolAddressesProvider public immutable addressesProvider; // Base variable borrow rate when Utilization rate = 0. Expressed in ray uint256 internal immutable _baseVariableBorrowRate; // Slope of the variable interest curve when utilization rate > 0 and <= OPTIMAL_UTILIZATION_RATE. Expressed in ray uint256 internal immutable _variableRateSlope1; // Slope of the variable interest curve when utilization rate > OPTIMAL_UTILIZATION_RATE. Expressed in ray uint256 internal immutable _variableRateSlope2; // Slope of the stable interest curve when utilization rate > 0 and <= OPTIMAL_UTILIZATION_RATE. Expressed in ray uint256 internal immutable _stableRateSlope1; // Slope of the stable interest curve when utilization rate > OPTIMAL_UTILIZATION_RATE. Expressed in ray uint256 internal immutable _stableRateSlope2; constructor( ILendingPoolAddressesProvider provider, uint256 optimalUtilizationRate, uint256 baseVariableBorrowRate, uint256 variableRateSlope1, uint256 variableRateSlope2, uint256 stableRateSlope1, uint256 stableRateSlope2 ) public { OPTIMAL_UTILIZATION_RATE = optimalUtilizationRate; EXCESS_UTILIZATION_RATE = WadRayMath.ray().sub(optimalUtilizationRate); addressesProvider = provider; _baseVariableBorrowRate = baseVariableBorrowRate; _variableRateSlope1 = variableRateSlope1; _variableRateSlope2 = variableRateSlope2; _stableRateSlope1 = stableRateSlope1; _stableRateSlope2 = stableRateSlope2; } function variableRateSlope1() external view returns (uint256) { return _variableRateSlope1; } function variableRateSlope2() external view returns (uint256) { return _variableRateSlope2; } function stableRateSlope1() external view returns (uint256) { return _stableRateSlope1; } function stableRateSlope2() external view returns (uint256) { return _stableRateSlope2; } function baseVariableBorrowRate() external view override returns (uint256) { return _baseVariableBorrowRate; } function getMaxVariableBorrowRate() external view override returns (uint256) { return _baseVariableBorrowRate.add(_variableRateSlope1).add(_variableRateSlope2); } struct CalcInterestRatesLocalVars { uint256 totalDebt; uint256 currentVariableBorrowRate; uint256 currentStableBorrowRate; uint256 currentLiquidityRate; uint256 utilizationRate; } /** * @dev Calculates the interest rates depending on the reserve's state and configurations * @param reserve The address of the reserve * @param availableLiquidity The liquidity available in the reserve * @param totalStableDebt The total borrowed from the reserve a stable rate * @param totalVariableDebt The total borrowed from the reserve at a variable rate * @param averageStableBorrowRate The weighted average of all the stable rate loans * @param reserveFactor The reserve portion of the interest that goes to the treasury of the market * @return The liquidity rate, the stable borrow rate and the variable borrow rate **/ function calculateInterestRates( address reserve, uint256 availableLiquidity, uint256 totalStableDebt, uint256 totalVariableDebt, uint256 averageStableBorrowRate, uint256 reserveFactor ) external view override returns ( uint256, uint256, uint256 ) { CalcInterestRatesLocalVars memory vars; vars.totalDebt = totalStableDebt.add(totalVariableDebt); vars.currentVariableBorrowRate = 0; vars.currentStableBorrowRate = 0; vars.currentLiquidityRate = 0; uint256 utilizationRate = vars.totalDebt == 0 ? 0 : vars.totalDebt.rayDiv(availableLiquidity.add(vars.totalDebt)); vars.currentStableBorrowRate = ILendingRateOracle(addressesProvider.getLendingRateOracle()) .getMarketBorrowRate(reserve); if (utilizationRate > OPTIMAL_UTILIZATION_RATE) { uint256 excessUtilizationRateRatio = utilizationRate.sub(OPTIMAL_UTILIZATION_RATE).rayDiv(EXCESS_UTILIZATION_RATE); vars.currentStableBorrowRate = vars.currentStableBorrowRate.add(_stableRateSlope1).add( _stableRateSlope2.rayMul(excessUtilizationRateRatio) ); vars.currentVariableBorrowRate = _baseVariableBorrowRate.add(_variableRateSlope1).add( _variableRateSlope2.rayMul(excessUtilizationRateRatio) ); } else { vars.currentStableBorrowRate = vars.currentStableBorrowRate.add( _stableRateSlope1.rayMul(utilizationRate.rayDiv(OPTIMAL_UTILIZATION_RATE)) ); vars.currentVariableBorrowRate = _baseVariableBorrowRate.add( utilizationRate.rayMul(_variableRateSlope1).rayDiv(OPTIMAL_UTILIZATION_RATE) ); } vars.currentLiquidityRate = _getOverallBorrowRate( totalStableDebt, totalVariableDebt, vars .currentVariableBorrowRate, averageStableBorrowRate ) .rayMul(utilizationRate) .percentMul(PercentageMath.PERCENTAGE_FACTOR.sub(reserveFactor)); return ( vars.currentLiquidityRate, vars.currentStableBorrowRate, vars.currentVariableBorrowRate ); } /** * @dev Calculates the overall borrow rate as the weighted average between the total variable debt and total stable debt * @param totalStableDebt The total borrowed from the reserve a stable rate * @param totalVariableDebt The total borrowed from the reserve at a variable rate * @param currentVariableBorrowRate The current variable borrow rate of the reserve * @param currentAverageStableBorrowRate The current weighted average of all the stable rate loans * @return The weighted averaged borrow rate **/ function _getOverallBorrowRate( uint256 totalStableDebt, uint256 totalVariableDebt, uint256 currentVariableBorrowRate, uint256 currentAverageStableBorrowRate ) internal pure returns (uint256) { uint256 totalDebt = totalStableDebt.add(totalVariableDebt); if (totalDebt == 0) return 0; uint256 weightedVariableRate = totalVariableDebt.wadToRay().rayMul(currentVariableBorrowRate); uint256 weightedStableRate = totalStableDebt.wadToRay().rayMul(currentAverageStableBorrowRate); uint256 overallBorrowRate = weightedVariableRate.add(weightedStableRate).rayDiv(totalDebt.wadToRay()); return overallBorrowRate; } }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; /** * @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 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. */ 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. */ 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; } }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; /** * @title IReserveInterestRateStrategyInterface interface * @dev Interface for the calculation of the interest rates * @author Aave */ interface IReserveInterestRateStrategy { function baseVariableBorrowRate() external view returns (uint256); function getMaxVariableBorrowRate() external view returns (uint256); function calculateInterestRates( address reserve, uint256 utilizationRate, uint256 totalStableDebt, uint256 totalVariableDebt, uint256 averageStableBorrowRate, uint256 reserveFactor ) external view returns ( uint256 liquidityRate, uint256 stableBorrowRate, uint256 variableBorrowRate ); }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; import {Errors} from '../helpers/Errors.sol'; /** * @title WadRayMath library * @author Aave * @dev Provides mul and div function for wads (decimal numbers with 18 digits precision) and rays (decimals with 27 digits) **/ library WadRayMath { uint256 internal constant WAD = 1e18; uint256 internal constant halfWAD = WAD / 2; uint256 internal constant RAY = 1e27; uint256 internal constant halfRAY = RAY / 2; uint256 internal constant WAD_RAY_RATIO = 1e9; /** * @return One ray, 1e27 **/ function ray() internal pure returns (uint256) { return RAY; } /** * @return One wad, 1e18 **/ function wad() internal pure returns (uint256) { return WAD; } /** * @return Half ray, 1e27/2 **/ function halfRay() internal pure returns (uint256) { return halfRAY; } /** * @return Half ray, 1e18/2 **/ function halfWad() internal pure returns (uint256) { return halfWAD; } /** * @dev Multiplies two wad, rounding half up to the nearest wad * @param a Wad * @param b Wad * @return The result of a*b, in wad **/ function wadMul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0 || b == 0) { return 0; } require(a <= (type(uint256).max - halfWAD) / b, Errors.MATH_MULTIPLICATION_OVERFLOW); return (a * b + halfWAD) / WAD; } /** * @dev Divides two wad, rounding half up to the nearest wad * @param a Wad * @param b Wad * @return The result of a/b, in wad **/ function wadDiv(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0, Errors.MATH_DIVISION_BY_ZERO); uint256 halfB = b / 2; require(a <= (type(uint256).max - halfB) / WAD, Errors.MATH_MULTIPLICATION_OVERFLOW); return (a * WAD + halfB) / b; } /** * @dev Multiplies two ray, rounding half up to the nearest ray * @param a Ray * @param b Ray * @return The result of a*b, in ray **/ function rayMul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0 || b == 0) { return 0; } require(a <= (type(uint256).max - halfRAY) / b, Errors.MATH_MULTIPLICATION_OVERFLOW); return (a * b + halfRAY) / RAY; } /** * @dev Divides two ray, rounding half up to the nearest ray * @param a Ray * @param b Ray * @return The result of a/b, in ray **/ function rayDiv(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0, Errors.MATH_DIVISION_BY_ZERO); uint256 halfB = b / 2; require(a <= (type(uint256).max - halfB) / RAY, Errors.MATH_MULTIPLICATION_OVERFLOW); return (a * RAY + halfB) / b; } /** * @dev Casts ray down to wad * @param a Ray * @return a casted to wad, rounded half up to the nearest wad **/ function rayToWad(uint256 a) internal pure returns (uint256) { uint256 halfRatio = WAD_RAY_RATIO / 2; uint256 result = halfRatio + a; require(result >= halfRatio, Errors.MATH_ADDITION_OVERFLOW); return result / WAD_RAY_RATIO; } /** * @dev Converts wad up to ray * @param a Wad * @return a converted in ray **/ function wadToRay(uint256 a) internal pure returns (uint256) { uint256 result = a * WAD_RAY_RATIO; require(result / WAD_RAY_RATIO == a, Errors.MATH_MULTIPLICATION_OVERFLOW); return result; } }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; /** * @title Errors library * @author Aave * @notice Defines the error messages emitted by the different contracts of the Aave protocol * @dev Error messages prefix glossary: * - VL = ValidationLogic * - MATH = Math libraries * - CT = Common errors between tokens (AToken, VariableDebtToken and StableDebtToken) * - AT = AToken * - SDT = StableDebtToken * - VDT = VariableDebtToken * - LP = LendingPool * - LPAPR = LendingPoolAddressesProviderRegistry * - LPC = LendingPoolConfiguration * - RL = ReserveLogic * - LPCM = LendingPoolCollateralManager * - P = Pausable */ library Errors { //common errors string public constant CALLER_NOT_POOL_ADMIN = '33'; // 'The caller must be the pool admin' string public constant BORROW_ALLOWANCE_NOT_ENOUGH = '59'; // User borrows on behalf, but allowance are too small //contract specific errors string public constant VL_INVALID_AMOUNT = '1'; // 'Amount must be greater than 0' string public constant VL_NO_ACTIVE_RESERVE = '2'; // 'Action requires an active reserve' string public constant VL_RESERVE_FROZEN = '3'; // 'Action cannot be performed because the reserve is frozen' string public constant VL_CURRENT_AVAILABLE_LIQUIDITY_NOT_ENOUGH = '4'; // 'The current liquidity is not enough' string public constant VL_NOT_ENOUGH_AVAILABLE_USER_BALANCE = '5'; // 'User cannot withdraw more than the available balance' string public constant VL_TRANSFER_NOT_ALLOWED = '6'; // 'Transfer cannot be allowed.' string public constant VL_BORROWING_NOT_ENABLED = '7'; // 'Borrowing is not enabled' string public constant VL_INVALID_INTEREST_RATE_MODE_SELECTED = '8'; // 'Invalid interest rate mode selected' string public constant VL_COLLATERAL_BALANCE_IS_0 = '9'; // 'The collateral balance is 0' string public constant VL_HEALTH_FACTOR_LOWER_THAN_LIQUIDATION_THRESHOLD = '10'; // 'Health factor is lesser than the liquidation threshold' string public constant VL_COLLATERAL_CANNOT_COVER_NEW_BORROW = '11'; // 'There is not enough collateral to cover a new borrow' string public constant VL_STABLE_BORROWING_NOT_ENABLED = '12'; // stable borrowing not enabled string public constant VL_COLLATERAL_SAME_AS_BORROWING_CURRENCY = '13'; // collateral is (mostly) the same currency that is being borrowed string public constant VL_AMOUNT_BIGGER_THAN_MAX_LOAN_SIZE_STABLE = '14'; // 'The requested amount is greater than the max loan size in stable rate mode string public constant VL_NO_DEBT_OF_SELECTED_TYPE = '15'; // 'for repayment of stable debt, the user needs to have stable debt, otherwise, he needs to have variable debt' string public constant VL_NO_EXPLICIT_AMOUNT_TO_REPAY_ON_BEHALF = '16'; // 'To repay on behalf of an user an explicit amount to repay is needed' string public constant VL_NO_STABLE_RATE_LOAN_IN_RESERVE = '17'; // 'User does not have a stable rate loan in progress on this reserve' string public constant VL_NO_VARIABLE_RATE_LOAN_IN_RESERVE = '18'; // 'User does not have a variable rate loan in progress on this reserve' string public constant VL_UNDERLYING_BALANCE_NOT_GREATER_THAN_0 = '19'; // 'The underlying balance needs to be greater than 0' string public constant VL_DEPOSIT_ALREADY_IN_USE = '20'; // 'User deposit is already being used as collateral' string public constant LP_NOT_ENOUGH_STABLE_BORROW_BALANCE = '21'; // 'User does not have any stable rate loan for this reserve' string public constant LP_INTEREST_RATE_REBALANCE_CONDITIONS_NOT_MET = '22'; // 'Interest rate rebalance conditions were not met' string public constant LP_LIQUIDATION_CALL_FAILED = '23'; // 'Liquidation call failed' string public constant LP_NOT_ENOUGH_LIQUIDITY_TO_BORROW = '24'; // 'There is not enough liquidity available to borrow' string public constant LP_REQUESTED_AMOUNT_TOO_SMALL = '25'; // 'The requested amount is too small for a FlashLoan.' string public constant LP_INCONSISTENT_PROTOCOL_ACTUAL_BALANCE = '26'; // 'The actual balance of the protocol is inconsistent' string public constant LP_CALLER_NOT_LENDING_POOL_CONFIGURATOR = '27'; // 'The caller of the function is not the lending pool configurator' string public constant LP_INCONSISTENT_FLASHLOAN_PARAMS = '28'; string public constant CT_CALLER_MUST_BE_LENDING_POOL = '29'; // 'The caller of this function must be a lending pool' string public constant CT_CANNOT_GIVE_ALLOWANCE_TO_HIMSELF = '30'; // 'User cannot give allowance to himself' string public constant CT_TRANSFER_AMOUNT_NOT_GT_0 = '31'; // 'Transferred amount needs to be greater than zero' string public constant RL_RESERVE_ALREADY_INITIALIZED = '32'; // 'Reserve has already been initialized' string public constant LPC_RESERVE_LIQUIDITY_NOT_0 = '34'; // 'The liquidity of the reserve needs to be 0' string public constant LPC_INVALID_ATOKEN_POOL_ADDRESS = '35'; // 'The liquidity of the reserve needs to be 0' string public constant LPC_INVALID_STABLE_DEBT_TOKEN_POOL_ADDRESS = '36'; // 'The liquidity of the reserve needs to be 0' string public constant LPC_INVALID_VARIABLE_DEBT_TOKEN_POOL_ADDRESS = '37'; // 'The liquidity of the reserve needs to be 0' string public constant LPC_INVALID_STABLE_DEBT_TOKEN_UNDERLYING_ADDRESS = '38'; // 'The liquidity of the reserve needs to be 0' string public constant LPC_INVALID_VARIABLE_DEBT_TOKEN_UNDERLYING_ADDRESS = '39'; // 'The liquidity of the reserve needs to be 0' string public constant LPC_INVALID_ADDRESSES_PROVIDER_ID = '40'; // 'The liquidity of the reserve needs to be 0' string public constant LPC_INVALID_CONFIGURATION = '75'; // 'Invalid risk parameters for the reserve' string public constant LPC_CALLER_NOT_EMERGENCY_ADMIN = '76'; // 'The caller must be the emergency admin' string public constant LPAPR_PROVIDER_NOT_REGISTERED = '41'; // 'Provider is not registered' string public constant LPCM_HEALTH_FACTOR_NOT_BELOW_THRESHOLD = '42'; // 'Health factor is not below the threshold' string public constant LPCM_COLLATERAL_CANNOT_BE_LIQUIDATED = '43'; // 'The collateral chosen cannot be liquidated' string public constant LPCM_SPECIFIED_CURRENCY_NOT_BORROWED_BY_USER = '44'; // 'User did not borrow the specified currency' string public constant LPCM_NOT_ENOUGH_LIQUIDITY_TO_LIQUIDATE = '45'; // "There isn't enough liquidity available to liquidate" string public constant LPCM_NO_ERRORS = '46'; // 'No errors' string public constant LP_INVALID_FLASHLOAN_MODE = '47'; //Invalid flashloan mode selected string public constant MATH_MULTIPLICATION_OVERFLOW = '48'; string public constant MATH_ADDITION_OVERFLOW = '49'; string public constant MATH_DIVISION_BY_ZERO = '50'; string public constant RL_LIQUIDITY_INDEX_OVERFLOW = '51'; // Liquidity index overflows uint128 string public constant RL_VARIABLE_BORROW_INDEX_OVERFLOW = '52'; // Variable borrow index overflows uint128 string public constant RL_LIQUIDITY_RATE_OVERFLOW = '53'; // Liquidity rate overflows uint128 string public constant RL_VARIABLE_BORROW_RATE_OVERFLOW = '54'; // Variable borrow rate overflows uint128 string public constant RL_STABLE_BORROW_RATE_OVERFLOW = '55'; // Stable borrow rate overflows uint128 string public constant CT_INVALID_MINT_AMOUNT = '56'; //invalid amount to mint string public constant LP_FAILED_REPAY_WITH_COLLATERAL = '57'; string public constant CT_INVALID_BURN_AMOUNT = '58'; //invalid amount to burn string public constant LP_FAILED_COLLATERAL_SWAP = '60'; string public constant LP_INVALID_EQUAL_ASSETS_TO_SWAP = '61'; string public constant LP_REENTRANCY_NOT_ALLOWED = '62'; string public constant LP_CALLER_MUST_BE_AN_ATOKEN = '63'; string public constant LP_IS_PAUSED = '64'; // 'Pool is paused' string public constant LP_NO_MORE_RESERVES_ALLOWED = '65'; string public constant LP_INVALID_FLASH_LOAN_EXECUTOR_RETURN = '66'; string public constant RC_INVALID_LTV = '67'; string public constant RC_INVALID_LIQ_THRESHOLD = '68'; string public constant RC_INVALID_LIQ_BONUS = '69'; string public constant RC_INVALID_DECIMALS = '70'; string public constant RC_INVALID_RESERVE_FACTOR = '71'; string public constant LPAPR_INVALID_ADDRESSES_PROVIDER_ID = '72'; string public constant VL_INCONSISTENT_FLASHLOAN_PARAMS = '73'; string public constant LP_INCONSISTENT_PARAMS_LENGTH = '74'; string public constant UL_INVALID_INDEX = '77'; string public constant LP_NOT_CONTRACT = '78'; string public constant SDT_STABLE_DEBT_OVERFLOW = '79'; string public constant SDT_BURN_EXCEEDS_BALANCE = '80'; enum CollateralManagerErrors { NO_ERROR, NO_COLLATERAL_AVAILABLE, COLLATERAL_CANNOT_BE_LIQUIDATED, CURRRENCY_NOT_BORROWED, HEALTH_FACTOR_ABOVE_THRESHOLD, NOT_ENOUGH_LIQUIDITY, NO_ACTIVE_RESERVE, HEALTH_FACTOR_LOWER_THAN_LIQUIDATION_THRESHOLD, INVALID_EQUAL_ASSETS_TO_SWAP, FROZEN_RESERVE } }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; import {Errors} from '../helpers/Errors.sol'; /** * @title PercentageMath library * @author Aave * @notice Provides functions to perform percentage calculations * @dev Percentages are defined by default with 2 decimals of precision (100.00). The precision is indicated by PERCENTAGE_FACTOR * @dev Operations are rounded half up **/ library PercentageMath { uint256 constant PERCENTAGE_FACTOR = 1e4; //percentage plus two decimals uint256 constant HALF_PERCENT = PERCENTAGE_FACTOR / 2; /** * @dev Executes a percentage multiplication * @param value The value of which the percentage needs to be calculated * @param percentage The percentage of the value to be calculated * @return The percentage of value **/ function percentMul(uint256 value, uint256 percentage) internal pure returns (uint256) { if (value == 0 || percentage == 0) { return 0; } require( value <= (type(uint256).max - HALF_PERCENT) / percentage, Errors.MATH_MULTIPLICATION_OVERFLOW ); return (value * percentage + HALF_PERCENT) / PERCENTAGE_FACTOR; } /** * @dev Executes a percentage division * @param value The value of which the percentage needs to be calculated * @param percentage The percentage of the value to be calculated * @return The value divided the percentage **/ function percentDiv(uint256 value, uint256 percentage) internal pure returns (uint256) { require(percentage != 0, Errors.MATH_DIVISION_BY_ZERO); uint256 halfPercentage = percentage / 2; require( value <= (type(uint256).max - halfPercentage) / PERCENTAGE_FACTOR, Errors.MATH_MULTIPLICATION_OVERFLOW ); return (value * PERCENTAGE_FACTOR + halfPercentage) / percentage; } }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; /** * @title LendingPoolAddressesProvider contract * @dev Main registry of addresses part of or connected to the protocol, including permissioned roles * - Acting also as factory of proxies and admin of those, so with right to change its implementations * - Owned by the Aave Governance * @author Aave **/ interface ILendingPoolAddressesProvider { event MarketIdSet(string newMarketId); event LendingPoolUpdated(address indexed newAddress); event ConfigurationAdminUpdated(address indexed newAddress); event EmergencyAdminUpdated(address indexed newAddress); event LendingPoolConfiguratorUpdated(address indexed newAddress); event LendingPoolCollateralManagerUpdated(address indexed newAddress); event PriceOracleUpdated(address indexed newAddress); event LendingRateOracleUpdated(address indexed newAddress); event ProxyCreated(bytes32 id, address indexed newAddress); event AddressSet(bytes32 id, address indexed newAddress, bool hasProxy); function getMarketId() external view returns (string memory); function setMarketId(string calldata marketId) external; function setAddress(bytes32 id, address newAddress) external; function setAddressAsProxy(bytes32 id, address impl) external; function getAddress(bytes32 id) external view returns (address); function getLendingPool() external view returns (address); function setLendingPoolImpl(address pool) external; function getLendingPoolConfigurator() external view returns (address); function setLendingPoolConfiguratorImpl(address configurator) external; function getLendingPoolCollateralManager() external view returns (address); function setLendingPoolCollateralManager(address manager) external; function getPoolAdmin() external view returns (address); function setPoolAdmin(address admin) external; function getEmergencyAdmin() external view returns (address); function setEmergencyAdmin(address admin) external; function getPriceOracle() external view returns (address); function setPriceOracle(address priceOracle) external; function getLendingRateOracle() external view returns (address); function setLendingRateOracle(address lendingRateOracle) external; }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; /** * @title ILendingRateOracle interface * @notice Interface for the Aave borrow rate oracle. Provides the average market borrow rate to be used as a base for the stable borrow rate calculations **/ interface ILendingRateOracle { /** @dev returns the market borrow rate in ray **/ function getMarketBorrowRate(address asset) external view returns (uint256); /** @dev sets the market borrow rate. Rate value must be in ray **/ function setMarketBorrowRate(address asset, uint256 rate) external; }
{ "optimizer": { "enabled": true, "runs": 200 }, "evmVersion": "istanbul", "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "abi" ] } }, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"contract ILendingPoolAddressesProvider","name":"provider","type":"address"},{"internalType":"uint256","name":"optimalUtilizationRate","type":"uint256"},{"internalType":"uint256","name":"baseVariableBorrowRate","type":"uint256"},{"internalType":"uint256","name":"variableRateSlope1","type":"uint256"},{"internalType":"uint256","name":"variableRateSlope2","type":"uint256"},{"internalType":"uint256","name":"stableRateSlope1","type":"uint256"},{"internalType":"uint256","name":"stableRateSlope2","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"EXCESS_UTILIZATION_RATE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"OPTIMAL_UTILIZATION_RATE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"addressesProvider","outputs":[{"internalType":"contract ILendingPoolAddressesProvider","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseVariableBorrowRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"reserve","type":"address"},{"internalType":"uint256","name":"availableLiquidity","type":"uint256"},{"internalType":"uint256","name":"totalStableDebt","type":"uint256"},{"internalType":"uint256","name":"totalVariableDebt","type":"uint256"},{"internalType":"uint256","name":"averageStableBorrowRate","type":"uint256"},{"internalType":"uint256","name":"reserveFactor","type":"uint256"}],"name":"calculateInterestRates","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getMaxVariableBorrowRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"stableRateSlope1","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"stableRateSlope2","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"variableRateSlope1","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"variableRateSlope2","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]
Contract Creation Code
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Deployed Bytecode
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000b53c1a33016b2dc2ff3653530bff1848a515c8c5000000000000000000000000000000000000000002e87669c308736a0400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002116545850052128000000000000000000000000000000000000000000000001f04ef12cb04cf158000000000000000000000000000000000000000000000000108b2a2c28029094000000000000000000000000000000000000000000000001f04ef12cb04cf158000000
-----Decoded View---------------
Arg [0] : provider (address): 0xB53C1a33016B2DC2fF3653530bfF1848a515c8c5
Arg [1] : optimalUtilizationRate (uint256): 900000000000000000000000000
Arg [2] : baseVariableBorrowRate (uint256): 0
Arg [3] : variableRateSlope1 (uint256): 40000000000000000000000000
Arg [4] : variableRateSlope2 (uint256): 600000000000000000000000000
Arg [5] : stableRateSlope1 (uint256): 20000000000000000000000000
Arg [6] : stableRateSlope2 (uint256): 600000000000000000000000000
-----Encoded View---------------
7 Constructor Arguments found :
Arg [0] : 000000000000000000000000b53c1a33016b2dc2ff3653530bff1848a515c8c5
Arg [1] : 000000000000000000000000000000000000000002e87669c308736a04000000
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [3] : 0000000000000000000000000000000000000000002116545850052128000000
Arg [4] : 000000000000000000000000000000000000000001f04ef12cb04cf158000000
Arg [5] : 000000000000000000000000000000000000000000108b2a2c28029094000000
Arg [6] : 000000000000000000000000000000000000000001f04ef12cb04cf158000000
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.