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Contract Name:
PiReserveInterestRateStrategy
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; pragma experimental ABIEncoderV2; import {IReserveInterestRateStrategy} from "../../interfaces/IReserveInterestRateStrategy.sol"; import {WadRayMath} from "../../protocol/libraries/math/WadRayMath.sol"; import {PercentageMath} from "../../protocol/libraries/math/PercentageMath.sol"; import {ILendingPoolAddressesProvider} from "../../interfaces/ILendingPoolAddressesProvider.sol"; import {IAToken} from "../../interfaces/IAToken.sol"; import {IVariableDebtToken} from "../../interfaces/IVariableDebtToken.sol"; import {VariableDebtToken} from "../../protocol/tokenization/VariableDebtToken.sol"; import {ILendingPool} from "../../interfaces/ILendingPool.sol"; import {DataTypes} from "../../protocol/libraries/types/DataTypes.sol"; import {ReserveConfiguration} from "../../protocol/libraries/configuration/ReserveConfiguration.sol"; import {Ownable} from "../../dependencies/openzeppelin/contracts/Ownable.sol"; import {SafeMath} from '../../dependencies/openzeppelin/contracts/SafeMath.sol'; import {SignedSafeMath} from '../../dependencies/openzeppelin/contracts/SignedSafeMath.sol'; import {IERC20} from '../../dependencies/openzeppelin/contracts/IERC20.sol'; /** * @title PiReserveInterestRateStrategy contract * @notice Implements the calculation of the interest rates using control theory. * @dev The model of interest rate is based Proportional Integrator (PI). * Admin needs to set an optimal utilization rate and this strategy will automatically * automatically adjust the interest rate according to the `Kp` and `Ki` variables. * @dev ATTENTION, this contract must no be used as a library. One PiReserveInterestRateStrategy * needs to be associated with only one market. * @dev ATTENTION STABLE RATES MUST BE DISABLED, this startegy doesn't support stable rate debt. * @author ByteMasons */ contract PiReserveInterestRateStrategy is IReserveInterestRateStrategy, Ownable { using WadRayMath for uint256; using WadRayMath for int256; using SafeMath for uint256; using SignedSafeMath for int256; using PercentageMath for uint256; ILendingPoolAddressesProvider public immutable _addressesProvider; address public immutable _asset; // This strategy contract needs to be associated to a unique market. int256 public constant M_FACTOR = 120e25; uint256 public constant N_FACTOR = 4; int256 public constant RAY = 1e27; int256 public constant MIN_INT256 = -2**255; int256 public constant MAX_INT256 = 2**255-1; int256 public _minControllerError; int256 public _maxErrIAmp; uint256 public _optimalUtilizationRate; // P uint256 public _kp; // in RAY // I uint256 public _ki; // in RAY uint256 public _lastTimestamp; int256 public _errI; // Events event PidLog( uint256 utilizationRate, uint256 currentLiquidityRate, uint256 currentVariableBorrowRate, int256 err, int256 controllerErr ); constructor( ILendingPoolAddressesProvider provider, address asset, int256 minControllerError, int256 maxITimeAmp, uint256 optimalUtilizationRate, uint256 kp, uint256 ki ) public { require(optimalUtilizationRate < uint256(RAY), "optimalUtilizationRate_GT_100%"); _optimalUtilizationRate = optimalUtilizationRate; _asset = asset; _addressesProvider = provider; _kp = kp; _ki = ki; _lastTimestamp = block.timestamp; _minControllerError = minControllerError; _maxErrIAmp = int256(_ki).rayMulInt(-RAY.mul(maxITimeAmp)); require(transferFunction(MIN_INT256) >= 0, "BASE_BORROW_RATE_CANT_BE_NEGATIVE"); } // ----------- admin ----------- function setOptimalUtilizationRate(uint256 optimalUtilizationRate) external onlyOwner { require(optimalUtilizationRate < uint256(RAY), "optimalUtilizationRate_GT_100%"); _optimalUtilizationRate = optimalUtilizationRate; } function setMinControllerError(int256 minControllerError) external onlyOwner { _minControllerError = minControllerError; require(transferFunction(MIN_INT256) >= 0, "BASE_BORROW_RATE_CANT_BE_NEGATIVE"); } function setPidValues(uint256 kp, uint256 ki, int256 maxITimeAmp) external onlyOwner { _kp = kp; _ki = ki; _maxErrIAmp = int256(_ki).rayMulInt(-RAY.mul(maxITimeAmp)); } // ----------- external ----------- /** * @dev Calculates the interest rates depending on the reserve's state and configurations * @param reserve The address of the reserve * @param liquidityAdded The liquidity added during the operation * @param liquidityTaken The liquidity taken during the operation * @param totalVariableDebt The total borrowed from the reserve at a variable rate * @param reserveFactor The reserve portion of the interest that goes to the treasury of the market * @return The liquidity rate and the variable borrow rate * */ function calculateInterestRates( address reserve, address aToken, uint256 liquidityAdded, //! since this function is not view anymore we need to make sure liquidityAdded is added at the end uint256 liquidityTaken, //! since this function is not view anymore we need to make sure liquidityTaken is removed at the end uint256, uint256 totalVariableDebt, uint256, uint256 reserveFactor ) external override returns (uint256, uint256, uint256) { uint256 availableLiquidity = IERC20(reserve).balanceOf(aToken); availableLiquidity = availableLiquidity.add(liquidityAdded).sub(liquidityTaken); return calculateInterestRates(address(0), availableLiquidity, 0, totalVariableDebt, 0, reserveFactor); } /** * @dev Calculates the interest rates depending on the reserve's state and configurations. * NOTE This function is kept for compatibility with the previous DefaultInterestRateStrategy interface. * New protocol implementation uses the new calculateInterestRates() interface * @param availableLiquidity The liquidity available in the corresponding aToken * @param totalVariableDebt The total borrowed from the reserve at a variable rate * @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, uint256 availableLiquidity, uint256, uint256 totalVariableDebt, uint256, uint256 reserveFactor ) public override returns (uint256, uint256, uint256) { require(msg.sender == _addressesProvider.getLendingPool(), "ACCESS_RESTRICTED_TO_LENDING_POOL"); uint256 utilizationRate = totalVariableDebt == 0 ? 0 : totalVariableDebt.rayDiv(availableLiquidity.add(totalVariableDebt)); // If no borrowers we reset the strategy if (utilizationRate == 0) { _errI = 0; _lastTimestamp = block.timestamp; return (0, 0, 0); } // PID state update int256 err = getNormalizedError(utilizationRate); _errI = _errI.add(int256(_ki).rayMulInt(err.mul(int256(block.timestamp.sub(_lastTimestamp))))); if (_errI < _maxErrIAmp) _errI = _maxErrIAmp; // Limit _errI negative accumulation. _lastTimestamp = block.timestamp; int256 controllerErr = getControllerError(err); uint256 currentVariableBorrowRate = transferFunction(controllerErr); uint256 currentLiquidityRate = getLiquidityRate(currentVariableBorrowRate, utilizationRate, reserveFactor); emit PidLog(utilizationRate, currentLiquidityRate, currentVariableBorrowRate, err, controllerErr); //! Stable rate set is 0 => Stable debt disable on the aave V2 market return (currentLiquidityRate, 0, currentVariableBorrowRate); } // ----------- view ----------- /** * @notice The view version of `calculateInterestRates()`. * @return currentLiquidityRate * @return currentStableBorrowRate * @return currentVariableBorrowRate * @return utilizationRate */ function getCurrentInterestRates() public view returns (uint256, uint256, uint256, uint256) { // utilization DataTypes.ReserveData memory reserve = ILendingPool(_addressesProvider.getLendingPool()).getReserveData(_asset); uint256 availableLiquidity = IERC20(_asset).balanceOf(reserve.aTokenAddress); uint256 totalVariableDebt = IVariableDebtToken(reserve.variableDebtTokenAddress).scaledTotalSupply().rayMul(reserve.variableBorrowIndex); uint256 utilizationRate = totalVariableDebt == 0 ? 0 : totalVariableDebt.rayDiv(availableLiquidity.add(totalVariableDebt)); // borrow rate uint256 currentVariableBorrowRate = transferFunction(getControllerError(getNormalizedError(utilizationRate))); // liquity rate uint256 currentLiquidityRate = getLiquidityRate(currentVariableBorrowRate, utilizationRate, getReserveFactor(reserve.configuration)); return (currentLiquidityRate, 0, currentVariableBorrowRate, utilizationRate); } function baseVariableBorrowRate() public view override returns (uint256) { return uint256(transferFunction(MIN_INT256)); } function getMaxVariableBorrowRate() external view override returns (uint256) { return uint256(MAX_INT256); } // ----------- helpers ----------- /** * @dev normalize the err: * utilizationRate ⊂ [0, Uo] => err ⊂ [-RAY, 0] * utilizationRate ⊂ [Uo, RAY] => err ⊂ [0, RAY] * With Uo = optimal rate */ function getNormalizedError(uint256 utilizationRate) internal view returns (int256) { int256 err = int256(utilizationRate).sub(int256(_optimalUtilizationRate)); if (int256(utilizationRate) < int256(_optimalUtilizationRate)) { return err.rayDivInt(int256(_optimalUtilizationRate)); } else { return err.rayDivInt(RAY.sub(int256(_optimalUtilizationRate))); } } /// @dev Process the liquidity rate from the variable borrow rate. function getLiquidityRate(uint256 currentVariableBorrowRate, uint256 utilizationRate, uint256 reserveFactor) internal pure returns (uint256) { return currentVariableBorrowRate.rayMul(utilizationRate).percentMul( PercentageMath.PERCENTAGE_FACTOR.sub(reserveFactor) ); } /// @dev Process the controller error from the normalized error. function getControllerError(int256 err) internal view returns (int256) { int256 errP = int256(_kp).rayMulInt(err); return errP.add(_errI); } /// @dev Transfer Function for calculation of _currentVariableBorrowRate (https://www.desmos.com/calculator/dj5puy23wz) function transferFunction(int256 controllerError) public view returns (uint256) { int256 ce = controllerError > _minControllerError ? controllerError : _minControllerError; return uint256(M_FACTOR.rayMulInt((ce.add(RAY)).rayDivInt(2 * RAY).rayPowerInt(N_FACTOR))); } /** * @notice getReserveFactor() from ReserveConfiguration can't be used with memory. * So we need to redefine this function here using memory. * @dev Gets the reserve factor of the reserve * @param self The reserve configuration * @return The reserve factor */ function getReserveFactor(DataTypes.ReserveConfigurationMap memory self) internal pure returns (uint256) { return (self.data & ~ReserveConfiguration.RESERVE_FACTOR_MASK) >> ReserveConfiguration.RESERVE_FACTOR_START_BIT_POSITION; } }
// SPDX-License-Identifier: MIT pragma solidity 0.6.12; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; import {IERC20} from './IERC20.sol'; interface IERC20Detailed is IERC20 { function name() external view returns (string memory); function symbol() external view returns (string memory); function decimals() external view returns (uint8); }
// SPDX-License-Identifier: MIT pragma solidity ^0.6.0; import './Context.sol'; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() internal { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(_owner == _msgSender(), 'Ownable: caller is not the owner'); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), 'Ownable: new owner is the zero address'); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } }
// 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: MIT pragma solidity 0.6.12; /** * @title SignedSafeMath * @dev Signed math operations with safety checks that revert on error. */ library SignedSafeMath { int256 constant private _INT256_MIN = -2**255; /** * @dev Returns the multiplication of two signed integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(int256 a, int256 b) internal pure returns (int256) { // 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; } require(!(a == -1 && b == _INT256_MIN), "SignedSafeMath: multiplication overflow"); int256 c = a * b; require(c / a == b, "SignedSafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two signed 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(int256 a, int256 b) internal pure returns (int256) { require(b != 0, "SignedSafeMath: division by zero"); require(!(b == -1 && a == _INT256_MIN), "SignedSafeMath: division overflow"); int256 c = a / b; return c; } /** * @dev Returns the subtraction of two signed integers, reverting on * overflow. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(int256 a, int256 b) internal pure returns (int256) { int256 c = a - b; require((b >= 0 && c <= a) || (b < 0 && c > a), "SignedSafeMath: subtraction overflow"); return c; } /** * @dev Returns the addition of two signed integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(int256 a, int256 b) internal pure returns (int256) { int256 c = a + b; require((b >= 0 && c >= a) || (b < 0 && c < a), "SignedSafeMath: addition overflow"); return c; } }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; import {IERC20} from '../dependencies/openzeppelin/contracts/IERC20.sol'; import {IScaledBalanceToken} from './IScaledBalanceToken.sol'; import {IInitializableAToken} from './IInitializableAToken.sol'; import {IRewarder} from './IRewarder.sol'; interface IAToken is IERC20, IScaledBalanceToken, IInitializableAToken { /** * @dev Emitted after the mint action * @param from The address performing the mint * @param value The amount being * @param index The new liquidity index of the reserve **/ event Mint(address indexed from, uint256 value, uint256 index); /** * @dev Mints `amount` aTokens to `user` * @param user The address receiving the minted tokens * @param amount The amount of tokens getting minted * @param index The new liquidity index of the reserve * @return `true` if the the previous balance of the user was 0 */ function mint( address user, uint256 amount, uint256 index ) external returns (bool); /** * @dev Emitted after aTokens are burned * @param from The owner of the aTokens, getting them burned * @param target The address that will receive the underlying * @param value The amount being burned * @param index The new liquidity index of the reserve **/ event Burn(address indexed from, address indexed target, uint256 value, uint256 index); /** * @dev Emitted during the transfer action * @param from The user whose tokens are being transferred * @param to The recipient * @param value The amount being transferred * @param index The new liquidity index of the reserve **/ event BalanceTransfer(address indexed from, address indexed to, uint256 value, uint256 index); /** * @dev Burns aTokens from `user` and sends the equivalent amount of underlying to `receiverOfUnderlying` * @param user The owner of the aTokens, getting them burned * @param receiverOfUnderlying The address that will receive the underlying * @param amount The amount being burned * @param index The new liquidity index of the reserve **/ function burn( address user, address receiverOfUnderlying, uint256 amount, uint256 index ) external; /** * @dev Mints aTokens to the reserve treasury * @param amount The amount of tokens getting minted * @param index The new liquidity index of the reserve */ function mintToTreasury(uint256 amount, uint256 index) external; /** * @dev Transfers aTokens in the event of a borrow being liquidated, in case the liquidators reclaims the aToken * @param from The address getting liquidated, current owner of the aTokens * @param to The recipient * @param value The amount of tokens getting transferred **/ function transferOnLiquidation( address from, address to, uint256 value ) external; /** * @dev Transfers the underlying asset to `target`. Used by the LendingPool to transfer * assets in borrow(), withdraw() and flashLoan() * @param user The recipient of the underlying * @param amount The amount getting transferred * @return The amount transferred **/ function transferUnderlyingTo(address user, uint256 amount) external returns (uint256); /** * @dev Invoked to execute actions on the aToken side after a repayment. * @param user The user executing the repayment * @param amount The amount getting repaid **/ function handleRepayment(address user, uint256 amount) external; /** * @dev Returns the address of the incentives controller contract **/ function getIncentivesController() external view returns (IRewarder); /** * @dev Returns the address of the underlying asset of this aToken (E.g. WETH for aWETH) **/ function UNDERLYING_ASSET_ADDRESS() external view returns (address); }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; interface ICreditDelegationToken { event BorrowAllowanceDelegated( address indexed fromUser, address indexed toUser, address asset, uint256 amount ); /** * @dev delegates borrowing power to a user on the specific debt token * @param delegatee the address receiving the delegated borrowing power * @param amount the maximum amount being delegated. Delegation will still * respect the liquidation constraints (even if delegated, a delegatee cannot * force a delegator HF to go below 1) **/ function approveDelegation(address delegatee, uint256 amount) external; /** * @dev returns the borrow allowance of the user * @param fromUser The user to giving allowance * @param toUser The user to give allowance to * @return the current allowance of toUser **/ function borrowAllowance(address fromUser, address toUser) external view returns (uint256); }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; import {ILendingPool} from './ILendingPool.sol'; import {IRewarder} from './IRewarder.sol'; /** * @title IInitializableAToken * @notice Interface for the initialize function on AToken * @author Aave **/ interface IInitializableAToken { /** * @dev Emitted when an aToken is initialized * @param underlyingAsset The address of the underlying asset * @param pool The address of the associated lending pool * @param treasury The address of the treasury * @param incentivesController The address of the incentives controller for this aToken * @param aTokenDecimals the decimals of the underlying * @param aTokenName the name of the aToken * @param aTokenSymbol the symbol of the aToken * @param params A set of encoded parameters for additional initialization **/ event Initialized( address indexed underlyingAsset, address indexed pool, address treasury, address incentivesController, uint8 aTokenDecimals, string aTokenName, string aTokenSymbol, bytes params ); /** * @dev Initializes the aToken * @param pool The address of the lending pool where this aToken will be used * @param treasury The address of the Aave treasury, receiving the fees on this aToken * @param underlyingAsset The address of the underlying asset of this aToken (E.g. WETH for aWETH) * @param incentivesController The smart contract managing potential incentives distribution * @param aTokenDecimals The decimals of the aToken, same as the underlying asset's * @param aTokenName The name of the aToken * @param aTokenSymbol The symbol of the aToken */ function initialize( ILendingPool pool, address treasury, address underlyingAsset, IRewarder incentivesController, uint8 aTokenDecimals, string calldata aTokenName, string calldata aTokenSymbol, bytes calldata params ) external; }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; import {ILendingPool} from './ILendingPool.sol'; import {IRewarder} from './IRewarder.sol'; /** * @title IInitializableDebtToken * @notice Interface for the initialize function common between debt tokens * @author Aave **/ interface IInitializableDebtToken { /** * @dev Emitted when a debt token is initialized * @param underlyingAsset The address of the underlying asset * @param pool The address of the associated lending pool * @param incentivesController The address of the incentives controller for this aToken * @param debtTokenDecimals the decimals of the debt token * @param debtTokenName the name of the debt token * @param debtTokenSymbol the symbol of the debt token * @param params A set of encoded parameters for additional initialization **/ event Initialized( address indexed underlyingAsset, address indexed pool, address incentivesController, uint8 debtTokenDecimals, string debtTokenName, string debtTokenSymbol, bytes params ); /** * @dev Initializes the debt token. * @param pool The address of the lending pool where this aToken will be used * @param underlyingAsset The address of the underlying asset of this aToken (E.g. WETH for aWETH) * @param incentivesController The smart contract managing potential incentives distribution * @param debtTokenDecimals The decimals of the debtToken, same as the underlying asset's * @param debtTokenName The name of the token * @param debtTokenSymbol The symbol of the token */ function initialize( ILendingPool pool, address underlyingAsset, IRewarder incentivesController, uint8 debtTokenDecimals, string memory debtTokenName, string memory debtTokenSymbol, bytes calldata params ) external; }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; pragma experimental ABIEncoderV2; import {ILendingPoolAddressesProvider} from './ILendingPoolAddressesProvider.sol'; import {DataTypes} from '../protocol/libraries/types/DataTypes.sol'; interface ILendingPool { /** * @dev Emitted on deposit() * @param reserve The address of the underlying asset of the reserve * @param user The address initiating the deposit * @param onBehalfOf The beneficiary of the deposit, receiving the aTokens * @param amount The amount deposited * @param referral The referral code used **/ event Deposit( address indexed reserve, address user, address indexed onBehalfOf, uint256 amount, uint16 indexed referral ); /** * @dev Emitted on withdraw() * @param reserve The address of the underlyng asset being withdrawn * @param user The address initiating the withdrawal, owner of aTokens * @param to Address that will receive the underlying * @param amount The amount to be withdrawn **/ event Withdraw(address indexed reserve, address indexed user, address indexed to, uint256 amount); /** * @dev Emitted on borrow() and flashLoan() when debt needs to be opened * @param reserve The address of the underlying asset being borrowed * @param user The address of the user initiating the borrow(), receiving the funds on borrow() or just * initiator of the transaction on flashLoan() * @param onBehalfOf The address that will be getting the debt * @param amount The amount borrowed out * @param borrowRateMode The rate mode: 1 for Stable, 2 for Variable * @param borrowRate The numeric rate at which the user has borrowed * @param referral The referral code used **/ event Borrow( address indexed reserve, address user, address indexed onBehalfOf, uint256 amount, uint256 borrowRateMode, uint256 borrowRate, uint16 indexed referral ); /** * @dev Emitted on repay() * @param reserve The address of the underlying asset of the reserve * @param user The beneficiary of the repayment, getting his debt reduced * @param repayer The address of the user initiating the repay(), providing the funds * @param amount The amount repaid **/ event Repay( address indexed reserve, address indexed user, address indexed repayer, uint256 amount ); /** * @dev Emitted on swapBorrowRateMode() * @param reserve The address of the underlying asset of the reserve * @param user The address of the user swapping his rate mode * @param rateMode The rate mode that the user wants to swap to **/ event Swap(address indexed reserve, address indexed user, uint256 rateMode); /** * @dev Emitted on setUserUseReserveAsCollateral() * @param reserve The address of the underlying asset of the reserve * @param user The address of the user enabling the usage as collateral **/ event ReserveUsedAsCollateralEnabled(address indexed reserve, address indexed user); /** * @dev Emitted on setUserUseReserveAsCollateral() * @param reserve The address of the underlying asset of the reserve * @param user The address of the user enabling the usage as collateral **/ event ReserveUsedAsCollateralDisabled(address indexed reserve, address indexed user); /** * @dev Emitted on rebalanceStableBorrowRate() * @param reserve The address of the underlying asset of the reserve * @param user The address of the user for which the rebalance has been executed **/ event RebalanceStableBorrowRate(address indexed reserve, address indexed user); /** * @dev Emitted on flashLoan() * @param target The address of the flash loan receiver contract * @param initiator The address initiating the flash loan * @param asset The address of the asset being flash borrowed * @param amount The amount flash borrowed * @param premium The fee flash borrowed * @param referralCode The referral code used **/ event FlashLoan( address indexed target, address indexed initiator, address indexed asset, uint256 amount, uint256 premium, uint16 referralCode ); /** * @dev Emitted when the pause is triggered. */ event Paused(); /** * @dev Emitted when the pause is lifted. */ event Unpaused(); /** * @dev Emitted when a borrower is liquidated. This event is emitted by the LendingPool via * LendingPoolCollateral manager using a DELEGATECALL * This allows to have the events in the generated ABI for LendingPool. * @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation * @param debtAsset The address of the underlying borrowed asset to be repaid with the liquidation * @param user The address of the borrower getting liquidated * @param debtToCover The debt amount of borrowed `asset` the liquidator wants to cover * @param liquidatedCollateralAmount The amount of collateral received by the liiquidator * @param liquidator The address of the liquidator * @param receiveAToken `true` if the liquidators wants to receive the collateral aTokens, `false` if he wants * to receive the underlying collateral asset directly **/ event LiquidationCall( address indexed collateralAsset, address indexed debtAsset, address indexed user, uint256 debtToCover, uint256 liquidatedCollateralAmount, address liquidator, bool receiveAToken ); /** * @dev Emitted when the state of a reserve is updated. NOTE: This event is actually declared * in the ReserveLogic library and emitted in the updateInterestRates() function. Since the function is internal, * the event will actually be fired by the LendingPool contract. The event is therefore replicated here so it * gets added to the LendingPool ABI * @param reserve The address of the underlying asset of the reserve * @param liquidityRate The new liquidity rate * @param stableBorrowRate The new stable borrow rate * @param variableBorrowRate The new variable borrow rate * @param liquidityIndex The new liquidity index * @param variableBorrowIndex The new variable borrow index **/ event ReserveDataUpdated( address indexed reserve, uint256 liquidityRate, uint256 stableBorrowRate, uint256 variableBorrowRate, uint256 liquidityIndex, uint256 variableBorrowIndex ); /** * @dev Deposits an `amount` of underlying asset into the reserve, receiving in return overlying aTokens. * - E.g. User deposits 100 USDC and gets in return 100 aUSDC * @param asset The address of the underlying asset to deposit * @param amount The amount to be deposited * @param onBehalfOf The address that will receive the aTokens, same as msg.sender if the user * wants to receive them on his own wallet, or a different address if the beneficiary of aTokens * is a different wallet * @param referralCode Code used to register the integrator originating the operation, for potential rewards. * 0 if the action is executed directly by the user, without any middle-man **/ function deposit( address asset, uint256 amount, address onBehalfOf, uint16 referralCode ) external; /** * @dev Withdraws an `amount` of underlying asset from the reserve, burning the equivalent aTokens owned * E.g. User has 100 aUSDC, calls withdraw() and receives 100 USDC, burning the 100 aUSDC * @param asset The address of the underlying asset to withdraw * @param amount The underlying amount to be withdrawn * - Send the value type(uint256).max in order to withdraw the whole aToken balance * @param to Address that will receive the underlying, same as msg.sender if the user * wants to receive it on his own wallet, or a different address if the beneficiary is a * different wallet * @return The final amount withdrawn **/ function withdraw( address asset, uint256 amount, address to ) external returns (uint256); /** * @dev Allows users to borrow a specific `amount` of the reserve underlying asset, provided that the borrower * already deposited enough collateral, or he was given enough allowance by a credit delegator on the * corresponding debt token (StableDebtToken or VariableDebtToken) * - E.g. User borrows 100 USDC passing as `onBehalfOf` his own address, receiving the 100 USDC in his wallet * and 100 stable/variable debt tokens, depending on the `interestRateMode` * @param asset The address of the underlying asset to borrow * @param amount The amount to be borrowed * @param interestRateMode The interest rate mode at which the user wants to borrow: 1 for Stable, 2 for Variable * @param referralCode Code used to register the integrator originating the operation, for potential rewards. * 0 if the action is executed directly by the user, without any middle-man * @param onBehalfOf Address of the user who will receive the debt. Should be the address of the borrower itself * calling the function if he wants to borrow against his own collateral, or the address of the credit delegator * if he has been given credit delegation allowance **/ function borrow( address asset, uint256 amount, uint256 interestRateMode, uint16 referralCode, address onBehalfOf ) external; /** * @notice Repays a borrowed `amount` on a specific reserve, burning the equivalent debt tokens owned * - E.g. User repays 100 USDC, burning 100 variable/stable debt tokens of the `onBehalfOf` address * @param asset The address of the borrowed underlying asset previously borrowed * @param amount The amount to repay * - Send the value type(uint256).max in order to repay the whole debt for `asset` on the specific `debtMode` * @param rateMode The interest rate mode at of the debt the user wants to repay: 1 for Stable, 2 for Variable * @param onBehalfOf Address of the user who will get his debt reduced/removed. Should be the address of the * user calling the function if he wants to reduce/remove his own debt, or the address of any other * other borrower whose debt should be removed * @return The final amount repaid **/ function repay( address asset, uint256 amount, uint256 rateMode, address onBehalfOf ) external returns (uint256); /** * @dev Allows a borrower to swap his debt between stable and variable mode, or viceversa * @param asset The address of the underlying asset borrowed * @param rateMode The rate mode that the user wants to swap to **/ function swapBorrowRateMode(address asset, uint256 rateMode) external; /** * @dev Rebalances the stable interest rate of a user to the current stable rate defined on the reserve. * - Users can be rebalanced if the following conditions are satisfied: * 1. Usage ratio is above 95% * 2. the current deposit APY is below REBALANCE_UP_THRESHOLD * maxVariableBorrowRate, which means that too much has been * borrowed at a stable rate and depositors are not earning enough * @param asset The address of the underlying asset borrowed * @param user The address of the user to be rebalanced **/ function rebalanceStableBorrowRate(address asset, address user) external; /** * @dev Allows depositors to enable/disable a specific deposited asset as collateral * @param asset The address of the underlying asset deposited * @param useAsCollateral `true` if the user wants to use the deposit as collateral, `false` otherwise **/ function setUserUseReserveAsCollateral(address asset, bool useAsCollateral) external; /** * @dev Function to liquidate a non-healthy position collateral-wise, with Health Factor below 1 * - The caller (liquidator) covers `debtToCover` amount of debt of the user getting liquidated, and receives * a proportionally amount of the `collateralAsset` plus a bonus to cover market risk * @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation * @param debtAsset The address of the underlying borrowed asset to be repaid with the liquidation * @param user The address of the borrower getting liquidated * @param debtToCover The debt amount of borrowed `asset` the liquidator wants to cover * @param receiveAToken `true` if the liquidators wants to receive the collateral aTokens, `false` if he wants * to receive the underlying collateral asset directly **/ function liquidationCall( address collateralAsset, address debtAsset, address user, uint256 debtToCover, bool receiveAToken ) external; /** * @dev Allows smartcontracts to access the liquidity of the pool within one transaction, * as long as the amount taken plus a fee is returned. * IMPORTANT There are security concerns for developers of flashloan receiver contracts that must be kept into consideration. * For further details please visit https://developers.aave.com * @param receiverAddress The address of the contract receiving the funds, implementing the IFlashLoanReceiver interface * @param assets The addresses of the assets being flash-borrowed * @param amounts The amounts amounts being flash-borrowed * @param modes Types of the debt to open if the flash loan is not returned: * 0 -> Don't open any debt, just revert if funds can't be transferred from the receiver * 1 -> Open debt at stable rate for the value of the amount flash-borrowed to the `onBehalfOf` address * 2 -> Open debt at variable rate for the value of the amount flash-borrowed to the `onBehalfOf` address * @param onBehalfOf The address that will receive the debt in the case of using on `modes` 1 or 2 * @param params Variadic packed params to pass to the receiver as extra information * @param referralCode Code used to register the integrator originating the operation, for potential rewards. * 0 if the action is executed directly by the user, without any middle-man **/ function flashLoan( address receiverAddress, address[] calldata assets, uint256[] calldata amounts, uint256[] calldata modes, address onBehalfOf, bytes calldata params, uint16 referralCode ) external; /** * @dev Returns the user account data across all the reserves * @param user The address of the user * @return totalCollateralETH the total collateral in ETH of the user * @return totalDebtETH the total debt in ETH of the user * @return availableBorrowsETH the borrowing power left of the user * @return currentLiquidationThreshold the liquidation threshold of the user * @return ltv the loan to value of the user * @return healthFactor the current health factor of the user **/ function getUserAccountData(address user) external view returns ( uint256 totalCollateralETH, uint256 totalDebtETH, uint256 availableBorrowsETH, uint256 currentLiquidationThreshold, uint256 ltv, uint256 healthFactor ); function initReserve( address reserve, address aTokenAddress, address stableDebtAddress, address variableDebtAddress, address interestRateStrategyAddress ) external; function setReserveInterestRateStrategyAddress(address reserve, address rateStrategyAddress) external; function setConfiguration(address reserve, uint256 configuration) external; /** * @dev Returns the configuration of the reserve * @param asset The address of the underlying asset of the reserve * @return The configuration of the reserve **/ function getConfiguration(address asset) external view returns (DataTypes.ReserveConfigurationMap memory); /** * @dev Returns the configuration of the user across all the reserves * @param user The user address * @return The configuration of the user **/ function getUserConfiguration(address user) external view returns (DataTypes.UserConfigurationMap memory); /** * @dev Returns the normalized income normalized income of the reserve * @param asset The address of the underlying asset of the reserve * @return The reserve's normalized income */ function getReserveNormalizedIncome(address asset) external view returns (uint256); /** * @dev Returns the normalized variable debt per unit of asset * @param asset The address of the underlying asset of the reserve * @return The reserve normalized variable debt */ function getReserveNormalizedVariableDebt(address asset) external view returns (uint256); /** * @dev Returns the state and configuration of the reserve * @param asset The address of the underlying asset of the reserve * @return The state of the reserve **/ function getReserveData(address asset) external view returns (DataTypes.ReserveData memory); function finalizeTransfer( address asset, address from, address to, uint256 amount, uint256 balanceFromAfter, uint256 balanceToBefore ) external; function getReservesList() external view returns (address[] memory); function getAddressesProvider() external view returns (ILendingPoolAddressesProvider); function setPause(bool val) external; function paused() external view returns (bool); }
// 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 getUiSigner() external view returns (address); function setUiSigner(address signer) 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; pragma experimental ABIEncoderV2; /** * @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 availableLiquidity, uint256 totalStableDebt, uint256 totalVariableDebt, uint256 averageStableBorrowRate, uint256 reserveFactor ) external returns ( uint256, uint256, uint256 ); function calculateInterestRates( address reserve, address aToken, uint256 liquidityAdded, uint256 liquidityTaken, uint256 totalStableDebt, uint256 totalVariableDebt, uint256 averageStableBorrowRate, uint256 reserveFactor ) external returns ( uint256 liquidityRate, uint256 stableBorrowRate, uint256 variableBorrowRate ); }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; pragma experimental ABIEncoderV2; interface IRewarder { event RewardsAccrued(address indexed user, uint256 amount); event RewardsClaimed(address indexed user, address indexed to, uint256 amount); event RewardsClaimed( address indexed user, address indexed to, address indexed claimer, uint256 amount ); event ClaimerSet(address indexed user, address indexed claimer); /* * @dev Returns the configuration of the distribution for a certain asset * @param asset The address of the reference asset of the distribution * @return The asset index, the emission per second and the last updated timestamp **/ function getAssetData(address asset) external view returns ( uint256, uint256, uint256 ); /* * LEGACY ************************** * @dev Returns the configuration of the distribution for a certain asset * @param asset The address of the reference asset of the distribution * @return The asset index, the emission per second and the last updated timestamp **/ function assets(address asset) external view returns ( uint128, uint128, uint256 ); /** * @dev Whitelists an address to claim the rewards on behalf of another address * @param user The address of the user * @param claimer The address of the claimer */ function setClaimer(address user, address claimer) external; /** * @dev Returns the whitelisted claimer for a certain address (0x0 if not set) * @param user The address of the user * @return The claimer address */ function getClaimer(address user) external view returns (address); /** * @dev Configure assets for a certain rewards emission * @param assets The assets to incentivize * @param emissionsPerSecond The emission for each asset */ function configureAssets(address[] calldata assets, uint256[] calldata emissionsPerSecond) external; /** * @dev Called by the corresponding asset on any update that affects the rewards distribution * @param asset The address of the user * @param userBalance The balance of the user of the asset in the lending pool * @param totalSupply The total supply of the asset in the lending pool **/ function handleAction( address asset, uint256 userBalance, uint256 totalSupply ) external; /** * @dev Returns the total of rewards of an user, already accrued + not yet accrued * @param user The address of the user * @return The rewards **/ function getRewardsBalance(address[] calldata assets, address user) external view returns (uint256); /** * @dev Claims reward for an user, on all the assets of the lending pool, accumulating the pending rewards * @param amount Amount of rewards to claim * @param to Address that will be receiving the rewards * @return Rewards claimed **/ function claimRewards( address[] calldata assets, uint256 amount, address to ) external returns (uint256); /** * @dev Claims reward for an user on behalf, on all the assets of the lending pool, accumulating the pending rewards. The caller must * be whitelisted via "allowClaimOnBehalf" function by the RewardsAdmin role manager * @param amount Amount of rewards to claim * @param user Address to check and claim rewards * @param to Address that will be receiving the rewards * @return Rewards claimed **/ function claimRewardsOnBehalf( address[] calldata assets, uint256 amount, address user, address to ) external returns (uint256); /** * @dev returns the unclaimed rewards of the user * @param user the address of the user * @return the unclaimed user rewards */ function getUserUnclaimedRewards(address user) external view returns (uint256); /** * @dev returns the unclaimed rewards of the user * @param user the address of the user * @param asset The asset to incentivize * @return the user index for the asset */ function getUserAssetData(address user, address asset) external view returns (uint256); /** * @dev for backward compatibility with previous implementation of the Incentives controller */ function REWARD_TOKEN() external view returns (address); /** * @dev for backward compatibility with previous implementation of the Incentives controller */ function PRECISION() external view returns (uint8); /** * @dev Gets the distribution end timestamp of the emissions */ function DISTRIBUTION_END() external view returns (uint256); }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; interface IScaledBalanceToken { /** * @dev Returns the scaled balance of the user. The scaled balance is the sum of all the * updated stored balance divided by the reserve's liquidity index at the moment of the update * @param user The user whose balance is calculated * @return The scaled balance of the user **/ function scaledBalanceOf(address user) external view returns (uint256); /** * @dev Returns the scaled balance of the user and the scaled total supply. * @param user The address of the user * @return The scaled balance of the user * @return The scaled balance and the scaled total supply **/ function getScaledUserBalanceAndSupply(address user) external view returns (uint256, uint256); /** * @dev Returns the scaled total supply of the variable debt token. Represents sum(debt/index) * @return The scaled total supply **/ function scaledTotalSupply() external view returns (uint256); }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; import {IScaledBalanceToken} from './IScaledBalanceToken.sol'; import {IInitializableDebtToken} from './IInitializableDebtToken.sol'; import {IRewarder} from './IRewarder.sol'; /** * @title IVariableDebtToken * @author Aave * @notice Defines the basic interface for a variable debt token. **/ interface IVariableDebtToken is IScaledBalanceToken, IInitializableDebtToken { /** * @dev Emitted after the mint action * @param from The address performing the mint * @param onBehalfOf The address of the user on which behalf minting has been performed * @param value The amount to be minted * @param index The last index of the reserve **/ event Mint(address indexed from, address indexed onBehalfOf, uint256 value, uint256 index); /** * @dev Mints debt token to the `onBehalfOf` address * @param user The address receiving the borrowed underlying, being the delegatee in case * of credit delegate, or same as `onBehalfOf` otherwise * @param onBehalfOf The address receiving the debt tokens * @param amount The amount of debt being minted * @param index The variable debt index of the reserve * @return `true` if the the previous balance of the user is 0 **/ function mint( address user, address onBehalfOf, uint256 amount, uint256 index ) external returns (bool); /** * @dev Emitted when variable debt is burnt * @param user The user which debt has been burned * @param amount The amount of debt being burned * @param index The index of the user **/ event Burn(address indexed user, uint256 amount, uint256 index); /** * @dev Burns user variable debt * @param user The user which debt is burnt * @param index The variable debt index of the reserve **/ function burn( address user, uint256 amount, uint256 index ) external; /** * @dev Returns the address of the incentives controller contract **/ function getIncentivesController() external view returns (IRewarder); }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; /** * @title VersionedInitializable * * @dev Helper contract to implement initializer functions. To use it, replace * the constructor with a function that has the `initializer` modifier. * WARNING: Unlike constructors, initializer functions must be manually * invoked. This applies both to deploying an Initializable contract, as well * as extending an Initializable contract via inheritance. * WARNING: When used with inheritance, manual care must be taken to not invoke * a parent initializer twice, or ensure that all initializers are idempotent, * because this is not dealt with automatically as with constructors. * * @author Aave, inspired by the OpenZeppelin Initializable contract */ abstract contract VersionedInitializable { /** * @dev Indicates that the contract has been initialized. */ uint256 private lastInitializedRevision = 0; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private initializing; /** * @dev Modifier to use in the initializer function of a contract. */ modifier initializer() { uint256 revision = getRevision(); require( initializing || isConstructor() || revision > lastInitializedRevision, 'Contract instance has already been initialized' ); bool isTopLevelCall = !initializing; if (isTopLevelCall) { initializing = true; lastInitializedRevision = revision; } _; if (isTopLevelCall) { initializing = false; } } /** * @dev returns the revision number of the contract * Needs to be defined in the inherited class as a constant. **/ function getRevision() internal pure virtual returns (uint256); /** * @dev Returns true if and only if the function is running in the constructor **/ function isConstructor() private view returns (bool) { // extcodesize checks the size of the code stored in an address, and // address returns the current address. Since the code is still not // deployed when running a constructor, any checks on its code size will // yield zero, making it an effective way to detect if a contract is // under construction or not. uint256 cs; //solium-disable-next-line assembly { cs := extcodesize(address()) } return cs == 0; } // Reserved storage space to allow for layout changes in the future. uint256[50] private ______gap; }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; import {Errors} from '../helpers/Errors.sol'; import {DataTypes} from '../types/DataTypes.sol'; /** * @title ReserveConfiguration library * @author Aave * @notice Implements the bitmap logic to handle the reserve configuration */ library ReserveConfiguration { uint256 constant LTV_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000; // prettier-ignore uint256 constant LIQUIDATION_THRESHOLD_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000FFFF; // prettier-ignore uint256 constant LIQUIDATION_BONUS_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000FFFFFFFF; // prettier-ignore uint256 constant DECIMALS_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00FFFFFFFFFFFF; // prettier-ignore uint256 constant ACTIVE_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFF; // prettier-ignore uint256 constant FROZEN_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFDFFFFFFFFFFFFFF; // prettier-ignore uint256 constant BORROWING_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFBFFFFFFFFFFFFFF; // prettier-ignore uint256 constant STABLE_BORROWING_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFFFFFFFF; // prettier-ignore uint256 constant RESERVE_FACTOR_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000FFFFFFFFFFFFFFFF; // prettier-ignore /// @dev For the LTV, the start bit is 0 (up to 15), hence no bitshifting is needed uint256 constant LIQUIDATION_THRESHOLD_START_BIT_POSITION = 16; uint256 constant LIQUIDATION_BONUS_START_BIT_POSITION = 32; uint256 constant RESERVE_DECIMALS_START_BIT_POSITION = 48; uint256 constant IS_ACTIVE_START_BIT_POSITION = 56; uint256 constant IS_FROZEN_START_BIT_POSITION = 57; uint256 constant BORROWING_ENABLED_START_BIT_POSITION = 58; uint256 constant STABLE_BORROWING_ENABLED_START_BIT_POSITION = 59; uint256 constant RESERVE_FACTOR_START_BIT_POSITION = 64; uint256 constant MAX_VALID_LTV = 65535; uint256 constant MAX_VALID_LIQUIDATION_THRESHOLD = 65535; uint256 constant MAX_VALID_LIQUIDATION_BONUS = 65535; uint256 constant MAX_VALID_DECIMALS = 255; uint256 constant MAX_VALID_RESERVE_FACTOR = 65535; /** * @dev Sets the Loan to Value of the reserve * @param self The reserve configuration * @param ltv the new ltv **/ function setLtv(DataTypes.ReserveConfigurationMap memory self, uint256 ltv) internal pure { require(ltv <= MAX_VALID_LTV, Errors.RC_INVALID_LTV); self.data = (self.data & LTV_MASK) | ltv; } /** * @dev Gets the Loan to Value of the reserve * @param self The reserve configuration * @return The loan to value **/ function getLtv(DataTypes.ReserveConfigurationMap storage self) internal view returns (uint256) { return self.data & ~LTV_MASK; } /** * @dev Sets the liquidation threshold of the reserve * @param self The reserve configuration * @param threshold The new liquidation threshold **/ function setLiquidationThreshold(DataTypes.ReserveConfigurationMap memory self, uint256 threshold) internal pure { require(threshold <= MAX_VALID_LIQUIDATION_THRESHOLD, Errors.RC_INVALID_LIQ_THRESHOLD); self.data = (self.data & LIQUIDATION_THRESHOLD_MASK) | (threshold << LIQUIDATION_THRESHOLD_START_BIT_POSITION); } /** * @dev Gets the liquidation threshold of the reserve * @param self The reserve configuration * @return The liquidation threshold **/ function getLiquidationThreshold(DataTypes.ReserveConfigurationMap storage self) internal view returns (uint256) { return (self.data & ~LIQUIDATION_THRESHOLD_MASK) >> LIQUIDATION_THRESHOLD_START_BIT_POSITION; } /** * @dev Sets the liquidation bonus of the reserve * @param self The reserve configuration * @param bonus The new liquidation bonus **/ function setLiquidationBonus(DataTypes.ReserveConfigurationMap memory self, uint256 bonus) internal pure { require(bonus <= MAX_VALID_LIQUIDATION_BONUS, Errors.RC_INVALID_LIQ_BONUS); self.data = (self.data & LIQUIDATION_BONUS_MASK) | (bonus << LIQUIDATION_BONUS_START_BIT_POSITION); } /** * @dev Gets the liquidation bonus of the reserve * @param self The reserve configuration * @return The liquidation bonus **/ function getLiquidationBonus(DataTypes.ReserveConfigurationMap storage self) internal view returns (uint256) { return (self.data & ~LIQUIDATION_BONUS_MASK) >> LIQUIDATION_BONUS_START_BIT_POSITION; } /** * @dev Sets the decimals of the underlying asset of the reserve * @param self The reserve configuration * @param decimals The decimals **/ function setDecimals(DataTypes.ReserveConfigurationMap memory self, uint256 decimals) internal pure { require(decimals <= MAX_VALID_DECIMALS, Errors.RC_INVALID_DECIMALS); self.data = (self.data & DECIMALS_MASK) | (decimals << RESERVE_DECIMALS_START_BIT_POSITION); } /** * @dev Gets the decimals of the underlying asset of the reserve * @param self The reserve configuration * @return The decimals of the asset **/ function getDecimals(DataTypes.ReserveConfigurationMap storage self) internal view returns (uint256) { return (self.data & ~DECIMALS_MASK) >> RESERVE_DECIMALS_START_BIT_POSITION; } /** * @dev Sets the active state of the reserve * @param self The reserve configuration * @param active The active state **/ function setActive(DataTypes.ReserveConfigurationMap memory self, bool active) internal pure { self.data = (self.data & ACTIVE_MASK) | (uint256(active ? 1 : 0) << IS_ACTIVE_START_BIT_POSITION); } /** * @dev Gets the active state of the reserve * @param self The reserve configuration * @return The active state **/ function getActive(DataTypes.ReserveConfigurationMap storage self) internal view returns (bool) { return (self.data & ~ACTIVE_MASK) != 0; } /** * @dev Sets the frozen state of the reserve * @param self The reserve configuration * @param frozen The frozen state **/ function setFrozen(DataTypes.ReserveConfigurationMap memory self, bool frozen) internal pure { self.data = (self.data & FROZEN_MASK) | (uint256(frozen ? 1 : 0) << IS_FROZEN_START_BIT_POSITION); } /** * @dev Gets the frozen state of the reserve * @param self The reserve configuration * @return The frozen state **/ function getFrozen(DataTypes.ReserveConfigurationMap storage self) internal view returns (bool) { return (self.data & ~FROZEN_MASK) != 0; } /** * @dev Enables or disables borrowing on the reserve * @param self The reserve configuration * @param enabled True if the borrowing needs to be enabled, false otherwise **/ function setBorrowingEnabled(DataTypes.ReserveConfigurationMap memory self, bool enabled) internal pure { self.data = (self.data & BORROWING_MASK) | (uint256(enabled ? 1 : 0) << BORROWING_ENABLED_START_BIT_POSITION); } /** * @dev Gets the borrowing state of the reserve * @param self The reserve configuration * @return The borrowing state **/ function getBorrowingEnabled(DataTypes.ReserveConfigurationMap storage self) internal view returns (bool) { return (self.data & ~BORROWING_MASK) != 0; } /** * @dev Enables or disables stable rate borrowing on the reserve * @param self The reserve configuration * @param enabled True if the stable rate borrowing needs to be enabled, false otherwise **/ function setStableRateBorrowingEnabled( DataTypes.ReserveConfigurationMap memory self, bool enabled ) internal pure { self.data = (self.data & STABLE_BORROWING_MASK) | (uint256(enabled ? 1 : 0) << STABLE_BORROWING_ENABLED_START_BIT_POSITION); } /** * @dev Gets the stable rate borrowing state of the reserve * @param self The reserve configuration * @return The stable rate borrowing state **/ function getStableRateBorrowingEnabled(DataTypes.ReserveConfigurationMap storage self) internal view returns (bool) { return (self.data & ~STABLE_BORROWING_MASK) != 0; } /** * @dev Sets the reserve factor of the reserve * @param self The reserve configuration * @param reserveFactor The reserve factor **/ function setReserveFactor(DataTypes.ReserveConfigurationMap memory self, uint256 reserveFactor) internal pure { require(reserveFactor <= MAX_VALID_RESERVE_FACTOR, Errors.RC_INVALID_RESERVE_FACTOR); self.data = (self.data & RESERVE_FACTOR_MASK) | (reserveFactor << RESERVE_FACTOR_START_BIT_POSITION); } /** * @dev Gets the reserve factor of the reserve * @param self The reserve configuration * @return The reserve factor **/ function getReserveFactor(DataTypes.ReserveConfigurationMap storage self) internal view returns (uint256) { return (self.data & ~RESERVE_FACTOR_MASK) >> RESERVE_FACTOR_START_BIT_POSITION; } /** * @dev Gets the configuration flags of the reserve * @param self The reserve configuration * @return The state flags representing active, frozen, borrowing enabled, stableRateBorrowing enabled **/ function getFlags(DataTypes.ReserveConfigurationMap storage self) internal view returns ( bool, bool, bool, bool ) { uint256 dataLocal = self.data; return ( (dataLocal & ~ACTIVE_MASK) != 0, (dataLocal & ~FROZEN_MASK) != 0, (dataLocal & ~BORROWING_MASK) != 0, (dataLocal & ~STABLE_BORROWING_MASK) != 0 ); } /** * @dev Gets the configuration paramters of the reserve * @param self The reserve configuration * @return The state params representing ltv, liquidation threshold, liquidation bonus, the reserve decimals **/ function getParams(DataTypes.ReserveConfigurationMap storage self) internal view returns ( uint256, uint256, uint256, uint256, uint256 ) { uint256 dataLocal = self.data; return ( dataLocal & ~LTV_MASK, (dataLocal & ~LIQUIDATION_THRESHOLD_MASK) >> LIQUIDATION_THRESHOLD_START_BIT_POSITION, (dataLocal & ~LIQUIDATION_BONUS_MASK) >> LIQUIDATION_BONUS_START_BIT_POSITION, (dataLocal & ~DECIMALS_MASK) >> RESERVE_DECIMALS_START_BIT_POSITION, (dataLocal & ~RESERVE_FACTOR_MASK) >> RESERVE_FACTOR_START_BIT_POSITION ); } /** * @dev Gets the configuration paramters of the reserve from a memory object * @param self The reserve configuration * @return The state params representing ltv, liquidation threshold, liquidation bonus, the reserve decimals **/ function getParamsMemory(DataTypes.ReserveConfigurationMap memory self) internal pure returns ( uint256, uint256, uint256, uint256, uint256 ) { return ( self.data & ~LTV_MASK, (self.data & ~LIQUIDATION_THRESHOLD_MASK) >> LIQUIDATION_THRESHOLD_START_BIT_POSITION, (self.data & ~LIQUIDATION_BONUS_MASK) >> LIQUIDATION_BONUS_START_BIT_POSITION, (self.data & ~DECIMALS_MASK) >> RESERVE_DECIMALS_START_BIT_POSITION, (self.data & ~RESERVE_FACTOR_MASK) >> RESERVE_FACTOR_START_BIT_POSITION ); } /** * @dev Gets the configuration flags of the reserve from a memory object * @param self The reserve configuration * @return The state flags representing active, frozen, borrowing enabled, stableRateBorrowing enabled **/ function getFlagsMemory(DataTypes.ReserveConfigurationMap memory self) internal pure returns ( bool, bool, bool, bool ) { return ( (self.data & ~ACTIVE_MASK) != 0, (self.data & ~FROZEN_MASK) != 0, (self.data & ~BORROWING_MASK) != 0, (self.data & ~STABLE_BORROWING_MASK) != 0 ); } }
// 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; import {Errors} from '../helpers/Errors.sol'; import {SignedSafeMath} from '../../../dependencies/openzeppelin/contracts/SignedSafeMath.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 { using SignedSafeMath for int256; uint256 internal constant WAD = 1e18; uint256 internal constant halfWAD = WAD / 2; uint256 internal constant RAY = 1e27; uint256 internal constant halfRAY = RAY / 2; int256 internal constant RAYint = 1e27; int256 internal constant halfRAYint = RAYint / 2; uint256 internal constant WAD_RAY_RATIO = 1e9; int256 public constant MIN_INT256 = -2**255; int256 public constant MAX_INT256 = 2**255-1; /** * @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; } // ------- int ------- /** * @dev Multiplies two ray int, rounding half up to the nearest ray. * If `result` > 0 round up, if `result` < 0 round down. * @param a Ray int * @param b Ray int * @return result The result of a*b, in ray **/ function rayMulInt(int256 a, int256 b) internal pure returns (int256) { int256 rawMul = a.mul(b); if (rawMul < 0) { return (rawMul.sub(halfRAYint)).div(RAYint); } else if (rawMul > 0) { return (rawMul.add(halfRAYint)).div(RAYint); } else { // if (a == 0 || b == 0) return 0; } } /** * @dev Divides two ray, rounding half up to the nearest ray * If `result` > 0 round up, if `result` < 0 round down. * @param a Ray int * @param b Ray int * @return The result of a/b, in ray **/ function rayDivInt(int256 a, int256 b) internal pure returns (int256) { require(b != 0, Errors.MATH_DIVISION_BY_ZERO); int256 halfB = b / 2; if (a >= 0 && b > 0 || a <= 0 && b < 0) { return ((a.mul(RAYint)).add(halfB)).div(b); } else { return ((a.mul(RAYint)).sub(halfB)).div(b); } } /** * @dev `base` to the power of `exponent`, using rayMulInt and a for loop. * @param base Ray int * @param exponent power exponent, not ray * @return result The result of base**exponent, in ray **/ function rayPowerInt(int256 base, uint256 exponent) internal pure returns (int256) { if (exponent == 0) { return 1; } int256 result = base; for (uint256 i = 1; i < exponent; i++) { result = rayMulInt(result, base); } return result; } }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; library DataTypes { // refer to the whitepaper, section 1.1 basic concepts for a formal description of these properties. struct ReserveData { //stores the reserve configuration ReserveConfigurationMap configuration; //the liquidity index. Expressed in ray uint128 liquidityIndex; //variable borrow index. Expressed in ray uint128 variableBorrowIndex; //the current supply rate. Expressed in ray uint128 currentLiquidityRate; //the current variable borrow rate. Expressed in ray uint128 currentVariableBorrowRate; //the current stable borrow rate. Expressed in ray uint128 currentStableBorrowRate; uint40 lastUpdateTimestamp; //tokens addresses address aTokenAddress; address stableDebtTokenAddress; address variableDebtTokenAddress; //address of the interest rate strategy address interestRateStrategyAddress; //the id of the reserve. Represents the position in the list of the active reserves uint8 id; } struct ReserveConfigurationMap { //bit 0-15: LTV //bit 16-31: Liq. threshold //bit 32-47: Liq. bonus //bit 48-55: Decimals //bit 56: Reserve is active //bit 57: reserve is frozen //bit 58: borrowing is enabled //bit 59: stable rate borrowing enabled //bit 60-63: reserved //bit 64-79: reserve factor uint256 data; } struct UserConfigurationMap { uint256 data; } enum InterestRateMode {NONE, STABLE, VARIABLE} }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; import {ILendingPool} from '../../../interfaces/ILendingPool.sol'; import {ICreditDelegationToken} from '../../../interfaces/ICreditDelegationToken.sol'; import { VersionedInitializable } from '../../libraries/aave-upgradeability/VersionedInitializable.sol'; import {IncentivizedERC20} from '../IncentivizedERC20.sol'; import {Errors} from '../../libraries/helpers/Errors.sol'; /** * @title DebtTokenBase * @notice Base contract for different types of debt tokens, like StableDebtToken or VariableDebtToken * @author Aave */ abstract contract DebtTokenBase is IncentivizedERC20('DEBTTOKEN_IMPL', 'DEBTTOKEN_IMPL', 0), VersionedInitializable, ICreditDelegationToken { mapping(address => mapping(address => uint256)) internal _borrowAllowances; /** * @dev Only lending pool can call functions marked by this modifier **/ modifier onlyLendingPool { require(_msgSender() == address(_getLendingPool()), Errors.CT_CALLER_MUST_BE_LENDING_POOL); _; } /** * @dev delegates borrowing power to a user on the specific debt token * @param delegatee the address receiving the delegated borrowing power * @param amount the maximum amount being delegated. Delegation will still * respect the liquidation constraints (even if delegated, a delegatee cannot * force a delegator HF to go below 1) **/ function approveDelegation(address delegatee, uint256 amount) external override { _borrowAllowances[_msgSender()][delegatee] = amount; emit BorrowAllowanceDelegated(_msgSender(), delegatee, _getUnderlyingAssetAddress(), amount); } /** * @dev returns the borrow allowance of the user * @param fromUser The user to giving allowance * @param toUser The user to give allowance to * @return the current allowance of toUser **/ function borrowAllowance(address fromUser, address toUser) external view override returns (uint256) { return _borrowAllowances[fromUser][toUser]; } /** * @dev Being non transferrable, the debt token does not implement any of the * standard ERC20 functions for transfer and allowance. **/ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { recipient; amount; revert('TRANSFER_NOT_SUPPORTED'); } function allowance(address owner, address spender) public view virtual override returns (uint256) { owner; spender; revert('ALLOWANCE_NOT_SUPPORTED'); } function approve(address spender, uint256 amount) public virtual override returns (bool) { spender; amount; revert('APPROVAL_NOT_SUPPORTED'); } function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { sender; recipient; amount; revert('TRANSFER_NOT_SUPPORTED'); } function increaseAllowance(address spender, uint256 addedValue) public virtual override returns (bool) { spender; addedValue; revert('ALLOWANCE_NOT_SUPPORTED'); } function decreaseAllowance(address spender, uint256 subtractedValue) public virtual override returns (bool) { spender; subtractedValue; revert('ALLOWANCE_NOT_SUPPORTED'); } function _decreaseBorrowAllowance( address delegator, address delegatee, uint256 amount ) internal { uint256 newAllowance = _borrowAllowances[delegator][delegatee].sub(amount, Errors.BORROW_ALLOWANCE_NOT_ENOUGH); _borrowAllowances[delegator][delegatee] = newAllowance; emit BorrowAllowanceDelegated(delegator, delegatee, _getUnderlyingAssetAddress(), newAllowance); } function _getUnderlyingAssetAddress() internal view virtual returns (address); function _getLendingPool() internal view virtual returns (ILendingPool); }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; import {Context} from '../../dependencies/openzeppelin/contracts/Context.sol'; import {IERC20} from '../../dependencies/openzeppelin/contracts/IERC20.sol'; import {IERC20Detailed} from '../../dependencies/openzeppelin/contracts/IERC20Detailed.sol'; import {SafeMath} from '../../dependencies/openzeppelin/contracts/SafeMath.sol'; import {IRewarder} from '../../interfaces/IRewarder.sol'; /** * @title ERC20 * @notice Basic ERC20 implementation * @author Aave, inspired by the Openzeppelin ERC20 implementation **/ abstract contract IncentivizedERC20 is Context, IERC20, IERC20Detailed { using SafeMath for uint256; mapping(address => uint256) internal _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 internal _totalSupply; string private _name; string private _symbol; uint8 private _decimals; constructor( string memory name, string memory symbol, uint8 decimals ) public { _name = name; _symbol = symbol; _decimals = decimals; } /** * @return The name of the token **/ function name() public view override returns (string memory) { return _name; } /** * @return The symbol of the token **/ function symbol() public view override returns (string memory) { return _symbol; } /** * @return The decimals of the token **/ function decimals() public view override returns (uint8) { return _decimals; } /** * @return The total supply of the token **/ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @return The balance of the token **/ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @return Abstract function implemented by the child aToken/debtToken. * Done this way in order to not break compatibility with previous versions of aTokens/debtTokens **/ function _getIncentivesController() internal view virtual returns(IRewarder); /** * @dev Executes a transfer of tokens from _msgSender() to recipient * @param recipient The recipient of the tokens * @param amount The amount of tokens being transferred * @return `true` if the transfer succeeds, `false` otherwise **/ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); emit Transfer(_msgSender(), recipient, amount); return true; } /** * @dev Returns the allowance of spender on the tokens owned by owner * @param owner The owner of the tokens * @param spender The user allowed to spend the owner's tokens * @return The amount of owner's tokens spender is allowed to spend **/ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev Allows `spender` to spend the tokens owned by _msgSender() * @param spender The user allowed to spend _msgSender() tokens * @return `true` **/ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev Executes a transfer of token from sender to recipient, if _msgSender() is allowed to do so * @param sender The owner of the tokens * @param recipient The recipient of the tokens * @param amount The amount of tokens being transferred * @return `true` if the transfer succeeds, `false` otherwise **/ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve( sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, 'ERC20: transfer amount exceeds allowance') ); emit Transfer(sender, recipient, amount); return true; } /** * @dev Increases the allowance of spender to spend _msgSender() tokens * @param spender The user allowed to spend on behalf of _msgSender() * @param addedValue The amount being added to the allowance * @return `true` **/ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } /** * @dev Decreases the allowance of spender to spend _msgSender() tokens * @param spender The user allowed to spend on behalf of _msgSender() * @param subtractedValue The amount being subtracted to the allowance * @return `true` **/ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve( _msgSender(), spender, _allowances[_msgSender()][spender].sub( subtractedValue, 'ERC20: decreased allowance below zero' ) ); return true; } function _transfer( address sender, address recipient, uint256 amount ) internal virtual { require(sender != address(0), 'ERC20: transfer from the zero address'); require(recipient != address(0), 'ERC20: transfer to the zero address'); _beforeTokenTransfer(sender, recipient, amount); uint256 oldSenderBalance = _balances[sender]; _balances[sender] = oldSenderBalance.sub(amount, 'ERC20: transfer amount exceeds balance'); uint256 oldRecipientBalance = _balances[recipient]; _balances[recipient] = _balances[recipient].add(amount); if (address(_getIncentivesController()) != address(0)) { uint256 currentTotalSupply = _totalSupply; _getIncentivesController().handleAction(sender, currentTotalSupply, oldSenderBalance); if (sender != recipient) { _getIncentivesController().handleAction(recipient, currentTotalSupply, oldRecipientBalance); } } } function _mint(address account, uint256 amount) internal virtual { require(account != address(0), 'ERC20: mint to the zero address'); _beforeTokenTransfer(address(0), account, amount); uint256 oldTotalSupply = _totalSupply; _totalSupply = oldTotalSupply.add(amount); uint256 oldAccountBalance = _balances[account]; _balances[account] = oldAccountBalance.add(amount); if (address(_getIncentivesController()) != address(0)) { _getIncentivesController().handleAction(account, oldTotalSupply, oldAccountBalance); } } function _burn(address account, uint256 amount) internal virtual { require(account != address(0), 'ERC20: burn from the zero address'); _beforeTokenTransfer(account, address(0), amount); uint256 oldTotalSupply = _totalSupply; _totalSupply = oldTotalSupply.sub(amount); uint256 oldAccountBalance = _balances[account]; _balances[account] = oldAccountBalance.sub(amount, 'ERC20: burn amount exceeds balance'); if (address(_getIncentivesController()) != address(0)) { _getIncentivesController().handleAction(account, oldTotalSupply, oldAccountBalance); } } function _approve( address owner, address spender, uint256 amount ) internal virtual { require(owner != address(0), 'ERC20: approve from the zero address'); require(spender != address(0), 'ERC20: approve to the zero address'); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _setName(string memory newName) internal { _name = newName; } function _setSymbol(string memory newSymbol) internal { _symbol = newSymbol; } function _setDecimals(uint8 newDecimals) internal { _decimals = newDecimals; } function _beforeTokenTransfer( address from, address to, uint256 amount ) internal virtual {} }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.6.12; import {IVariableDebtToken} from '../../interfaces/IVariableDebtToken.sol'; import {WadRayMath} from '../libraries/math/WadRayMath.sol'; import {Errors} from '../libraries/helpers/Errors.sol'; import {DebtTokenBase} from './base/DebtTokenBase.sol'; import {ILendingPool} from '../../interfaces/ILendingPool.sol'; import {IRewarder} from '../../interfaces/IRewarder.sol'; /** * @title VariableDebtToken * @notice Implements a variable debt token to track the borrowing positions of users * at variable rate mode * @author Aave **/ contract VariableDebtToken is DebtTokenBase, IVariableDebtToken { using WadRayMath for uint256; uint256 public constant DEBT_TOKEN_REVISION = 0x1; ILendingPool internal _pool; address internal _underlyingAsset; IRewarder internal _incentivesController; /** * @dev Initializes the debt token. * @param pool The address of the lending pool where this aToken will be used * @param underlyingAsset The address of the underlying asset of this aToken (E.g. WETH for aWETH) * @param incentivesController The smart contract managing potential incentives distribution * @param debtTokenDecimals The decimals of the debtToken, same as the underlying asset's * @param debtTokenName The name of the token * @param debtTokenSymbol The symbol of the token */ function initialize( ILendingPool pool, address underlyingAsset, IRewarder incentivesController, uint8 debtTokenDecimals, string memory debtTokenName, string memory debtTokenSymbol, bytes calldata params ) public override initializer { _setName(debtTokenName); _setSymbol(debtTokenSymbol); _setDecimals(debtTokenDecimals); _pool = pool; _underlyingAsset = underlyingAsset; _incentivesController = incentivesController; emit Initialized( underlyingAsset, address(pool), address(incentivesController), debtTokenDecimals, debtTokenName, debtTokenSymbol, params ); } /** * @dev Gets the revision of the stable debt token implementation * @return The debt token implementation revision **/ function getRevision() internal pure virtual override returns (uint256) { return DEBT_TOKEN_REVISION; } /** * @dev Calculates the accumulated debt balance of the user * @return The debt balance of the user **/ function balanceOf(address user) public view virtual override returns (uint256) { uint256 scaledBalance = super.balanceOf(user); if (scaledBalance == 0) { return 0; } return scaledBalance.rayMul(_pool.getReserveNormalizedVariableDebt(_underlyingAsset)); } /** * @dev Mints debt token to the `onBehalfOf` address * - Only callable by the LendingPool * @param user The address receiving the borrowed underlying, being the delegatee in case * of credit delegate, or same as `onBehalfOf` otherwise * @param onBehalfOf The address receiving the debt tokens * @param amount The amount of debt being minted * @param index The variable debt index of the reserve * @return `true` if the the previous balance of the user is 0 **/ function mint( address user, address onBehalfOf, uint256 amount, uint256 index ) external override onlyLendingPool returns (bool) { if (user != onBehalfOf) { _decreaseBorrowAllowance(onBehalfOf, user, amount); } uint256 previousBalance = super.balanceOf(onBehalfOf); uint256 amountScaled = amount.rayDiv(index); require(amountScaled != 0, Errors.CT_INVALID_MINT_AMOUNT); _mint(onBehalfOf, amountScaled); emit Transfer(address(0), onBehalfOf, amount); emit Mint(user, onBehalfOf, amount, index); return previousBalance == 0; } /** * @dev Burns user variable debt * - Only callable by the LendingPool * @param user The user whose debt is getting burned * @param amount The amount getting burned * @param index The variable debt index of the reserve **/ function burn( address user, uint256 amount, uint256 index ) external override onlyLendingPool { uint256 amountScaled = amount.rayDiv(index); require(amountScaled != 0, Errors.CT_INVALID_BURN_AMOUNT); _burn(user, amountScaled); emit Transfer(user, address(0), amount); emit Burn(user, amount, index); } /** * @dev Returns the principal debt balance of the user from * @return The debt balance of the user since the last burn/mint action **/ function scaledBalanceOf(address user) public view virtual override returns (uint256) { return super.balanceOf(user); } /** * @dev Returns the total supply of the variable debt token. Represents the total debt accrued by the users * @return The total supply **/ function totalSupply() public view virtual override returns (uint256) { return super.totalSupply().rayMul(_pool.getReserveNormalizedVariableDebt(_underlyingAsset)); } /** * @dev Returns the scaled total supply of the variable debt token. Represents sum(debt/index) * @return the scaled total supply **/ function scaledTotalSupply() public view virtual override returns (uint256) { return super.totalSupply(); } /** * @dev Returns the principal balance of the user and principal total supply. * @param user The address of the user * @return The principal balance of the user * @return The principal total supply **/ function getScaledUserBalanceAndSupply(address user) external view override returns (uint256, uint256) { return (super.balanceOf(user), super.totalSupply()); } /** * @dev Returns the address of the underlying asset of this aToken (E.g. WETH for aWETH) **/ function UNDERLYING_ASSET_ADDRESS() public view returns (address) { return _underlyingAsset; } /** * @dev Returns the address of the incentives controller contract **/ function getIncentivesController() external view override returns (IRewarder) { return _getIncentivesController(); } /** * @dev Returns the address of the lending pool where this aToken is used **/ function POOL() public view returns (ILendingPool) { return _pool; } function _getIncentivesController() internal view override returns (IRewarder) { return _incentivesController; } function _getUnderlyingAssetAddress() internal view override returns (address) { return _underlyingAsset; } function _getLendingPool() internal view override returns (ILendingPool) { return _pool; } }
{ "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
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Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000d5d5467074381ed85b93d498899cf4c90142de4900000000000000000000000050c42deacd8fc9773493ed674b675be577f2634bfffffffffffffffffffffffffffffffffffffffffd6a416919bf9968e0000000000000000000000000000000000000000000000000000000000000000013c6800000000000000000000000000000000000000000026c62ad77dc602dae0000000000000000000000000000000000000000000000033b2e3c9fd0803ce800000000000000000000000000000000000000000000000000000821ab0d4414980000
-----Decoded View---------------
Arg [0] : provider (address): 0xD5d5467074381eD85B93d498899Cf4c90142dE49
Arg [1] : asset (address): 0x50c42dEAcD8Fc9773493ED674b675bE577f2634b
Arg [2] : minControllerError (int256): -800000000000000000000000000
Arg [3] : maxITimeAmp (int256): 1296000
Arg [4] : optimalUtilizationRate (uint256): 750000000000000000000000000
Arg [5] : kp (uint256): 1000000000000000000000000000
Arg [6] : ki (uint256): 150000000000000000000
-----Encoded View---------------
7 Constructor Arguments found :
Arg [0] : 000000000000000000000000d5d5467074381ed85b93d498899cf4c90142de49
Arg [1] : 00000000000000000000000050c42deacd8fc9773493ed674b675be577f2634b
Arg [2] : fffffffffffffffffffffffffffffffffffffffffd6a416919bf9968e0000000
Arg [3] : 000000000000000000000000000000000000000000000000000000000013c680
Arg [4] : 0000000000000000000000000000000000000000026c62ad77dc602dae000000
Arg [5] : 0000000000000000000000000000000000000000033b2e3c9fd0803ce8000000
Arg [6] : 00000000000000000000000000000000000000000000000821ab0d4414980000
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Multichain Portfolio | 30 Chains
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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.