S Price: $0.599092 (-19.89%)
    /

    Contract Diff Checker

    Contract Name:
    LendingPoolConfigurator

    Contract Source Code:

    // SPDX-License-Identifier: agpl-3.0
    pragma solidity 0.6.12;
    
    /**
     * @dev Collection of functions related to the address type
     */
    library Address {
      /**
       * @dev Returns true if `account` is a contract.
       *
       * [IMPORTANT]
       * ====
       * It is unsafe to assume that an address for which this function returns
       * false is an externally-owned account (EOA) and not a contract.
       *
       * Among others, `isContract` will return false for the following
       * types of addresses:
       *
       *  - an externally-owned account
       *  - a contract in construction
       *  - an address where a contract will be created
       *  - an address where a contract lived, but was destroyed
       * ====
       */
      function isContract(address account) internal view returns (bool) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly {
          codehash := extcodehash(account)
        }
        return (codehash != accountHash && codehash != 0x0);
      }
    
      /**
       * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
       * `recipient`, forwarding all available gas and reverting on errors.
       *
       * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
       * of certain opcodes, possibly making contracts go over the 2300 gas limit
       * imposed by `transfer`, making them unable to receive funds via
       * `transfer`. {sendValue} removes this limitation.
       *
       * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
       *
       * IMPORTANT: because control is transferred to `recipient`, care must be
       * taken to not create reentrancy vulnerabilities. Consider using
       * {ReentrancyGuard} or the
       * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
       */
      function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, 'Address: insufficient balance');
    
        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{value: amount}('');
        require(success, 'Address: unable to send value, recipient may have reverted');
      }
    }

    // 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: agpl-3.0
    pragma solidity 0.6.12;
    
    /**
     * @dev Wrappers over Solidity's arithmetic operations with added overflow
     * checks.
     *
     * Arithmetic operations in Solidity wrap on overflow. This can easily result
     * in bugs, because programmers usually assume that an overflow raises an
     * error, which is the standard behavior in high level programming languages.
     * `SafeMath` restores this intuition by reverting the transaction when an
     * operation overflows.
     *
     * Using this library instead of the unchecked operations eliminates an entire
     * class of bugs, so it's recommended to use it always.
     */
    library SafeMath {
      /**
       * @dev Returns the addition of two unsigned integers, reverting on
       * overflow.
       *
       * Counterpart to Solidity's `+` operator.
       *
       * Requirements:
       * - Addition cannot overflow.
       */
      function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, 'SafeMath: addition overflow');
    
        return c;
      }
    
      /**
       * @dev Returns the subtraction of two unsigned integers, reverting on
       * overflow (when the result is negative).
       *
       * Counterpart to Solidity's `-` operator.
       *
       * Requirements:
       * - Subtraction cannot overflow.
       */
      function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, 'SafeMath: subtraction overflow');
      }
    
      /**
       * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
       * overflow (when the result is negative).
       *
       * Counterpart to Solidity's `-` operator.
       *
       * Requirements:
       * - Subtraction cannot overflow.
       */
      function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
      ) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;
    
        return c;
      }
    
      /**
       * @dev Returns the multiplication of two unsigned integers, reverting on
       * overflow.
       *
       * Counterpart to Solidity's `*` operator.
       *
       * Requirements:
       * - Multiplication cannot overflow.
       */
      function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
          return 0;
        }
    
        uint256 c = a * b;
        require(c / a == b, 'SafeMath: multiplication overflow');
    
        return c;
      }
    
      /**
       * @dev Returns the integer division of two unsigned integers. Reverts on
       * division by zero. The result is rounded towards zero.
       *
       * Counterpart to Solidity's `/` operator. Note: this function uses a
       * `revert` opcode (which leaves remaining gas untouched) while Solidity
       * uses an invalid opcode to revert (consuming all remaining gas).
       *
       * Requirements:
       * - The divisor cannot be zero.
       */
      function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, 'SafeMath: division by zero');
      }
    
      /**
       * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
       * division by zero. The result is rounded towards zero.
       *
       * Counterpart to Solidity's `/` operator. Note: this function uses a
       * `revert` opcode (which leaves remaining gas untouched) while Solidity
       * uses an invalid opcode to revert (consuming all remaining gas).
       *
       * Requirements:
       * - The divisor cannot be zero.
       */
      function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
      ) internal pure returns (uint256) {
        // Solidity only automatically asserts when dividing by 0
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold
    
        return c;
      }
    
      /**
       * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
       * Reverts when dividing by zero.
       *
       * Counterpart to Solidity's `%` operator. This function uses a `revert`
       * opcode (which leaves remaining gas untouched) while Solidity uses an
       * invalid opcode to revert (consuming all remaining gas).
       *
       * Requirements:
       * - The divisor cannot be zero.
       */
      function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, 'SafeMath: modulo by zero');
      }
    
      /**
       * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
       * Reverts with custom message when dividing by zero.
       *
       * Counterpart to Solidity's `%` operator. This function uses a `revert`
       * opcode (which leaves remaining gas untouched) while Solidity uses an
       * invalid opcode to revert (consuming all remaining gas).
       *
       * Requirements:
       * - The divisor cannot be zero.
       */
      function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
      ) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
      }
    }

    // SPDX-License-Identifier: agpl-3.0
    pragma solidity 0.6.12;
    
    import './Proxy.sol';
    import '../contracts/Address.sol';
    
    /**
     * @title BaseUpgradeabilityProxy
     * @dev This contract implements a proxy that allows to change the
     * implementation address to which it will delegate.
     * Such a change is called an implementation upgrade.
     */
    contract BaseUpgradeabilityProxy is Proxy {
      /**
       * @dev Emitted when the implementation is upgraded.
       * @param implementation Address of the new implementation.
       */
      event Upgraded(address indexed implementation);
    
      /**
       * @dev Storage slot with the address of the current implementation.
       * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
       * validated in the constructor.
       */
      bytes32 internal constant IMPLEMENTATION_SLOT =
        0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
    
      /**
       * @dev Returns the current implementation.
       * @return impl Address of the current implementation
       */
      function _implementation() internal view override returns (address impl) {
        bytes32 slot = IMPLEMENTATION_SLOT;
        //solium-disable-next-line
        assembly {
          impl := sload(slot)
        }
      }
    
      /**
       * @dev Upgrades the proxy to a new implementation.
       * @param newImplementation Address of the new implementation.
       */
      function _upgradeTo(address newImplementation) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);
      }
    
      /**
       * @dev Sets the implementation address of the proxy.
       * @param newImplementation Address of the new implementation.
       */
      function _setImplementation(address newImplementation) internal {
        require(
          Address.isContract(newImplementation),
          'Cannot set a proxy implementation to a non-contract address'
        );
    
        bytes32 slot = IMPLEMENTATION_SLOT;
    
        //solium-disable-next-line
        assembly {
          sstore(slot, newImplementation)
        }
      }
    }

    // SPDX-License-Identifier: agpl-3.0
    pragma solidity 0.6.12;
    
    import './BaseUpgradeabilityProxy.sol';
    
    /**
     * @title InitializableUpgradeabilityProxy
     * @dev Extends BaseUpgradeabilityProxy with an initializer for initializing
     * implementation and init data.
     */
    contract InitializableUpgradeabilityProxy is BaseUpgradeabilityProxy {
      /**
       * @dev Contract initializer.
       * @param _logic Address of the initial implementation.
       * @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
       * It should include the signature and the parameters of the function to be called, as described in
       * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
       * This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
       */
      function initialize(address _logic, bytes memory _data) public payable {
        require(_implementation() == address(0));
        assert(IMPLEMENTATION_SLOT == bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1));
        _setImplementation(_logic);
        if (_data.length > 0) {
          (bool success, ) = _logic.delegatecall(_data);
          require(success);
        }
      }
    }

    // SPDX-License-Identifier: agpl-3.0
    pragma solidity ^0.6.0;
    
    /**
     * @title Proxy
     * @dev Implements delegation of calls to other contracts, with proper
     * forwarding of return values and bubbling of failures.
     * It defines a fallback function that delegates all calls to the address
     * returned by the abstract _implementation() internal function.
     */
    abstract contract Proxy {
      /**
       * @dev Fallback function.
       * Implemented entirely in `_fallback`.
       */
      fallback() external payable {
        _fallback();
      }
    
      /**
       * @return The Address of the implementation.
       */
      function _implementation() internal view virtual returns (address);
    
      /**
       * @dev Delegates execution to an implementation contract.
       * This is a low level function that doesn't return to its internal call site.
       * It will return to the external caller whatever the implementation returns.
       * @param implementation Address to delegate.
       */
      function _delegate(address implementation) internal {
        //solium-disable-next-line
        assembly {
          // Copy msg.data. We take full control of memory in this inline assembly
          // block because it will not return to Solidity code. We overwrite the
          // Solidity scratch pad at memory position 0.
          calldatacopy(0, 0, calldatasize())
    
          // Call the implementation.
          // out and outsize are 0 because we don't know the size yet.
          let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)
    
          // Copy the returned data.
          returndatacopy(0, 0, returndatasize())
    
          switch result
            // delegatecall returns 0 on error.
            case 0 {
              revert(0, returndatasize())
            }
            default {
              return(0, returndatasize())
            }
        }
      }
    
      /**
       * @dev Function that is run as the first thing in the fallback function.
       * Can be redefined in derived contracts to add functionality.
       * Redefinitions must call super._willFallback().
       */
      function _willFallback() internal virtual {}
    
      /**
       * @dev fallback implementation.
       * Extracted to enable manual triggering.
       */
      function _fallback() internal {
        _willFallback();
        _delegate(_implementation());
      }
    }

    // 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;
    
    interface ILendingPoolConfigurator {
      struct InitReserveInput {
        address aTokenImpl;
        address stableDebtTokenImpl;
        address variableDebtTokenImpl;
        uint8 underlyingAssetDecimals;
        address interestRateStrategyAddress;
        address underlyingAsset;
        address treasury;
        address incentivesController;
        string underlyingAssetName;
        string aTokenName;
        string aTokenSymbol;
        string variableDebtTokenName;
        string variableDebtTokenSymbol;
        string stableDebtTokenName;
        string stableDebtTokenSymbol;
        bytes params;
      }
    
      struct UpdateATokenInput {
        address asset;
        address treasury;
        address incentivesController;
        string name;
        string symbol;
        address implementation;
        bytes params;
      }
    
      struct UpdateDebtTokenInput {
        address asset;
        address incentivesController;
        string name;
        string symbol;
        address implementation;
        bytes params;
      }
    
      /**
       * @dev Emitted when a reserve is initialized.
       * @param asset The address of the underlying asset of the reserve
       * @param aToken The address of the associated aToken contract
       * @param stableDebtToken The address of the associated stable rate debt token
       * @param variableDebtToken The address of the associated variable rate debt token
       * @param interestRateStrategyAddress The address of the interest rate strategy for the reserve
       **/
      event ReserveInitialized(
        address indexed asset,
        address indexed aToken,
        address stableDebtToken,
        address variableDebtToken,
        address interestRateStrategyAddress
      );
    
      /**
       * @dev Emitted when borrowing is enabled on a reserve
       * @param asset The address of the underlying asset of the reserve
       * @param stableRateEnabled True if stable rate borrowing is enabled, false otherwise
       **/
      event BorrowingEnabledOnReserve(address indexed asset, bool stableRateEnabled);
    
      /**
       * @dev Emitted when borrowing is disabled on a reserve
       * @param asset The address of the underlying asset of the reserve
       **/
      event BorrowingDisabledOnReserve(address indexed asset);
    
      /**
       * @dev Emitted when the collateralization risk parameters for the specified asset are updated.
       * @param asset The address of the underlying asset of the reserve
       * @param ltv The loan to value of the asset when used as collateral
       * @param liquidationThreshold The threshold at which loans using this asset as collateral will be considered undercollateralized
       * @param liquidationBonus The bonus liquidators receive to liquidate this asset
       **/
      event CollateralConfigurationChanged(
        address indexed asset,
        uint256 ltv,
        uint256 liquidationThreshold,
        uint256 liquidationBonus
      );
    
      /**
       * @dev Emitted when stable rate borrowing is enabled on a reserve
       * @param asset The address of the underlying asset of the reserve
       **/
      event StableRateEnabledOnReserve(address indexed asset);
    
      /**
       * @dev Emitted when stable rate borrowing is disabled on a reserve
       * @param asset The address of the underlying asset of the reserve
       **/
      event StableRateDisabledOnReserve(address indexed asset);
    
      /**
       * @dev Emitted when a reserve is activated
       * @param asset The address of the underlying asset of the reserve
       **/
      event ReserveActivated(address indexed asset);
    
      /**
       * @dev Emitted when a reserve is deactivated
       * @param asset The address of the underlying asset of the reserve
       **/
      event ReserveDeactivated(address indexed asset);
    
      /**
       * @dev Emitted when a reserve is frozen
       * @param asset The address of the underlying asset of the reserve
       **/
      event ReserveFrozen(address indexed asset);
    
      /**
       * @dev Emitted when a reserve is unfrozen
       * @param asset The address of the underlying asset of the reserve
       **/
      event ReserveUnfrozen(address indexed asset);
    
      /**
       * @dev Emitted when a reserve factor is updated
       * @param asset The address of the underlying asset of the reserve
       * @param factor The new reserve factor
       **/
      event ReserveFactorChanged(address indexed asset, uint256 factor);
    
      /**
       * @dev Emitted when the reserve decimals are updated
       * @param asset The address of the underlying asset of the reserve
       * @param decimals The new decimals
       **/
      event ReserveDecimalsChanged(address indexed asset, uint256 decimals);
    
      /**
       * @dev Emitted when a reserve interest strategy contract is updated
       * @param asset The address of the underlying asset of the reserve
       * @param strategy The new address of the interest strategy contract
       **/
      event ReserveInterestRateStrategyChanged(address indexed asset, address strategy);
    
      /**
       * @dev Emitted when an aToken implementation is upgraded
       * @param asset The address of the underlying asset of the reserve
       * @param proxy The aToken proxy address
       * @param implementation The new aToken implementation
       **/
      event ATokenUpgraded(
        address indexed asset,
        address indexed proxy,
        address indexed implementation
      );
    
      /**
       * @dev Emitted when the implementation of a stable debt token is upgraded
       * @param asset The address of the underlying asset of the reserve
       * @param proxy The stable debt token proxy address
       * @param implementation The new aToken implementation
       **/
      event StableDebtTokenUpgraded(
        address indexed asset,
        address indexed proxy,
        address indexed implementation
      );
    
      /**
       * @dev Emitted when the implementation of a variable debt token is upgraded
       * @param asset The address of the underlying asset of the reserve
       * @param proxy The variable debt token proxy address
       * @param implementation The new aToken implementation
       **/
      event VariableDebtTokenUpgraded(
        address indexed asset,
        address indexed proxy,
        address indexed implementation
      );
    }

    // 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;
    pragma experimental ABIEncoderV2;
    
    import {SafeMath} from '../../dependencies/openzeppelin/contracts/SafeMath.sol';
    import {VersionedInitializable} from '../libraries/aave-upgradeability/VersionedInitializable.sol';
    import {
      InitializableImmutableAdminUpgradeabilityProxy
    } from '../libraries/aave-upgradeability/InitializableImmutableAdminUpgradeabilityProxy.sol';
    import {ReserveConfiguration} from '../libraries/configuration/ReserveConfiguration.sol';
    import {ILendingPoolAddressesProvider} from '../../interfaces/ILendingPoolAddressesProvider.sol';
    import {ILendingPool} from '../../interfaces/ILendingPool.sol';
    import {IERC20Detailed} from '../../dependencies/openzeppelin/contracts/IERC20Detailed.sol';
    import {Errors} from '../libraries/helpers/Errors.sol';
    import {PercentageMath} from '../libraries/math/PercentageMath.sol';
    import {DataTypes} from '../libraries/types/DataTypes.sol';
    import {IInitializableDebtToken} from '../../interfaces/IInitializableDebtToken.sol';
    import {IInitializableAToken} from '../../interfaces/IInitializableAToken.sol';
    import {IRewarder} from '../../interfaces/IRewarder.sol';
    import {ILendingPoolConfigurator} from '../../interfaces/ILendingPoolConfigurator.sol';
    
    /**
     * @title LendingPoolConfigurator contract
     * @author Aave
     * @dev Implements the configuration methods for the Aave protocol
     **/
    
    contract LendingPoolConfigurator is VersionedInitializable, ILendingPoolConfigurator {
      using SafeMath for uint256;
      using PercentageMath for uint256;
      using ReserveConfiguration for DataTypes.ReserveConfigurationMap;
    
      ILendingPoolAddressesProvider internal addressesProvider;
      ILendingPool internal pool;
    
      modifier onlyPoolAdmin {
        require(addressesProvider.getPoolAdmin() == msg.sender, Errors.CALLER_NOT_POOL_ADMIN);
        _;
      }
    
      modifier onlyEmergencyAdmin {
        require(
          addressesProvider.getEmergencyAdmin() == msg.sender,
          Errors.LPC_CALLER_NOT_EMERGENCY_ADMIN
        );
        _;
      }
    
      uint256 internal constant CONFIGURATOR_REVISION = 0x1;
    
      function getRevision() internal pure override returns (uint256) {
        return CONFIGURATOR_REVISION;
      }
    
      function initialize(ILendingPoolAddressesProvider provider) public initializer {
        addressesProvider = provider;
        pool = ILendingPool(addressesProvider.getLendingPool());
      }
    
      /**
       * @dev Initializes reserves in batch
       **/
      function batchInitReserve(InitReserveInput[] calldata input) external onlyPoolAdmin {
        ILendingPool cachedPool = pool;
        for (uint256 i = 0; i < input.length; i++) {
          _initReserve(cachedPool, input[i]);
        }
      }
    
      function _initReserve(ILendingPool pool, InitReserveInput calldata input) internal {
        address aTokenProxyAddress =
          _initTokenWithProxy(
            input.aTokenImpl,
            abi.encodeWithSelector(
              IInitializableAToken.initialize.selector,
              pool,
              input.treasury,
              input.underlyingAsset,
              IRewarder(input.incentivesController),
              input.underlyingAssetDecimals,
              input.aTokenName,
              input.aTokenSymbol,
              input.params
            )
          );
    
        address stableDebtTokenProxyAddress =
          _initTokenWithProxy(
            input.stableDebtTokenImpl,
            abi.encodeWithSelector(
              IInitializableDebtToken.initialize.selector,
              pool,
              input.underlyingAsset,
              IRewarder(input.incentivesController),
              input.underlyingAssetDecimals,
              input.stableDebtTokenName,
              input.stableDebtTokenSymbol,
              input.params
            )
          );
    
        address variableDebtTokenProxyAddress =
          _initTokenWithProxy(
            input.variableDebtTokenImpl,
            abi.encodeWithSelector(
              IInitializableDebtToken.initialize.selector,
              pool,
              input.underlyingAsset,
              IRewarder(input.incentivesController),
              input.underlyingAssetDecimals,
              input.variableDebtTokenName,
              input.variableDebtTokenSymbol,
              input.params
            )
          );
    
        pool.initReserve(
          input.underlyingAsset,
          aTokenProxyAddress,
          stableDebtTokenProxyAddress,
          variableDebtTokenProxyAddress,
          input.interestRateStrategyAddress
        );
    
        DataTypes.ReserveConfigurationMap memory currentConfig =
          pool.getConfiguration(input.underlyingAsset);
    
        currentConfig.setDecimals(input.underlyingAssetDecimals);
    
        currentConfig.setActive(true);
        currentConfig.setFrozen(false);
    
        pool.setConfiguration(input.underlyingAsset, currentConfig.data);
    
        emit ReserveInitialized(
          input.underlyingAsset,
          aTokenProxyAddress,
          stableDebtTokenProxyAddress,
          variableDebtTokenProxyAddress,
          input.interestRateStrategyAddress
        );
      }
    
      /**
       * @dev Updates the aToken implementation for the reserve
       **/
      function updateAToken(UpdateATokenInput calldata input) external onlyPoolAdmin {
        ILendingPool cachedPool = pool;
    
        DataTypes.ReserveData memory reserveData = cachedPool.getReserveData(input.asset);
    
        (, , , uint256 decimals, ) = cachedPool.getConfiguration(input.asset).getParamsMemory();
    
        bytes memory encodedCall = abi.encodeWithSelector(
            IInitializableAToken.initialize.selector,
            cachedPool,
            input.treasury,
            input.asset,
            input.incentivesController,
            decimals,
            input.name,
            input.symbol,
            input.params
          );
    
        _upgradeTokenImplementation(
          reserveData.aTokenAddress,
          input.implementation,
          encodedCall
        );
    
        emit ATokenUpgraded(input.asset, reserveData.aTokenAddress, input.implementation);
      }
    
      /**
       * @dev Updates the stable debt token implementation for the reserve
       **/
      function updateStableDebtToken(UpdateDebtTokenInput calldata input) external onlyPoolAdmin {
        ILendingPool cachedPool = pool;
    
        DataTypes.ReserveData memory reserveData = cachedPool.getReserveData(input.asset);
         
        (, , , uint256 decimals, ) = cachedPool.getConfiguration(input.asset).getParamsMemory();
    
        bytes memory encodedCall = abi.encodeWithSelector(
            IInitializableDebtToken.initialize.selector,
            cachedPool,
            input.asset,
            input.incentivesController,
            decimals,
            input.name,
            input.symbol,
            input.params
          );
    
        _upgradeTokenImplementation(
          reserveData.stableDebtTokenAddress,
          input.implementation,
          encodedCall
        );
    
        emit StableDebtTokenUpgraded(
          input.asset,
          reserveData.stableDebtTokenAddress,
          input.implementation
        );
      }
    
      /**
       * @dev Updates the variable debt token implementation for the asset
       **/
      function updateVariableDebtToken(UpdateDebtTokenInput calldata input)
        external
        onlyPoolAdmin
      {
        ILendingPool cachedPool = pool;
    
        DataTypes.ReserveData memory reserveData = cachedPool.getReserveData(input.asset);
    
        (, , , uint256 decimals, ) = cachedPool.getConfiguration(input.asset).getParamsMemory();
    
        bytes memory encodedCall = abi.encodeWithSelector(
            IInitializableDebtToken.initialize.selector,
            cachedPool,
            input.asset,
            input.incentivesController,
            decimals,
            input.name,
            input.symbol,
            input.params
          );
    
        _upgradeTokenImplementation(
          reserveData.variableDebtTokenAddress,
          input.implementation,
          encodedCall
        );
    
        emit VariableDebtTokenUpgraded(
          input.asset,
          reserveData.variableDebtTokenAddress,
          input.implementation
        );
      }
    
      /**
       * @dev Enables borrowing on a reserve
       * @param asset The address of the underlying asset of the reserve
       * @param stableBorrowRateEnabled True if stable borrow rate needs to be enabled by default on this reserve
       **/
      function enableBorrowingOnReserve(address asset, bool stableBorrowRateEnabled)
        external
        onlyPoolAdmin
      {
        DataTypes.ReserveConfigurationMap memory currentConfig = pool.getConfiguration(asset);
    
        currentConfig.setBorrowingEnabled(true);
        currentConfig.setStableRateBorrowingEnabled(stableBorrowRateEnabled);
    
        pool.setConfiguration(asset, currentConfig.data);
    
        emit BorrowingEnabledOnReserve(asset, stableBorrowRateEnabled);
      }
    
      /**
       * @dev Disables borrowing on a reserve
       * @param asset The address of the underlying asset of the reserve
       **/
      function disableBorrowingOnReserve(address asset) external onlyPoolAdmin {
        DataTypes.ReserveConfigurationMap memory currentConfig = pool.getConfiguration(asset);
    
        currentConfig.setBorrowingEnabled(false);
    
        pool.setConfiguration(asset, currentConfig.data);
        emit BorrowingDisabledOnReserve(asset);
      }
    
      /**
       * @dev Configures the reserve collateralization parameters
       * all the values are expressed in percentages with two decimals of precision. A valid value is 10000, which means 100.00%
       * @param asset The address of the underlying asset of the reserve
       * @param ltv The loan to value of the asset when used as collateral
       * @param liquidationThreshold The threshold at which loans using this asset as collateral will be considered undercollateralized
       * @param liquidationBonus The bonus liquidators receive to liquidate this asset. The values is always above 100%. A value of 105%
       * means the liquidator will receive a 5% bonus
       **/
      function configureReserveAsCollateral(
        address asset,
        uint256 ltv,
        uint256 liquidationThreshold,
        uint256 liquidationBonus
      ) external onlyPoolAdmin {
        DataTypes.ReserveConfigurationMap memory currentConfig = pool.getConfiguration(asset);
    
        //validation of the parameters: the LTV can
        //only be lower or equal than the liquidation threshold
        //(otherwise a loan against the asset would cause instantaneous liquidation)
        require(ltv <= liquidationThreshold, Errors.LPC_INVALID_CONFIGURATION);
    
        if (liquidationThreshold != 0) {
          //liquidation bonus must be bigger than 100.00%, otherwise the liquidator would receive less
          //collateral than needed to cover the debt
          require(
            liquidationBonus > PercentageMath.PERCENTAGE_FACTOR,
            Errors.LPC_INVALID_CONFIGURATION
          );
    
          //if threshold * bonus is less than PERCENTAGE_FACTOR, it's guaranteed that at the moment
          //a loan is taken there is enough collateral available to cover the liquidation bonus
          require(
            liquidationThreshold.percentMul(liquidationBonus) <= PercentageMath.PERCENTAGE_FACTOR,
            Errors.LPC_INVALID_CONFIGURATION
          );
        } else {
          require(liquidationBonus == 0, Errors.LPC_INVALID_CONFIGURATION);
          //if the liquidation threshold is being set to 0,
          // the reserve is being disabled as collateral. To do so,
          //we need to ensure no liquidity is deposited
          _checkNoLiquidity(asset);
        }
    
        currentConfig.setLtv(ltv);
        currentConfig.setLiquidationThreshold(liquidationThreshold);
        currentConfig.setLiquidationBonus(liquidationBonus);
    
        pool.setConfiguration(asset, currentConfig.data);
    
        emit CollateralConfigurationChanged(asset, ltv, liquidationThreshold, liquidationBonus);
      }
    
      /**
       * @dev Enable stable rate borrowing on a reserve
       * @param asset The address of the underlying asset of the reserve
       **/
      function enableReserveStableRate(address asset) external onlyPoolAdmin {
        DataTypes.ReserveConfigurationMap memory currentConfig = pool.getConfiguration(asset);
    
        currentConfig.setStableRateBorrowingEnabled(true);
    
        pool.setConfiguration(asset, currentConfig.data);
    
        emit StableRateEnabledOnReserve(asset);
      }
    
      /**
       * @dev Disable stable rate borrowing on a reserve
       * @param asset The address of the underlying asset of the reserve
       **/
      function disableReserveStableRate(address asset) external onlyPoolAdmin {
        DataTypes.ReserveConfigurationMap memory currentConfig = pool.getConfiguration(asset);
    
        currentConfig.setStableRateBorrowingEnabled(false);
    
        pool.setConfiguration(asset, currentConfig.data);
    
        emit StableRateDisabledOnReserve(asset);
      }
    
      /**
       * @dev Activates a reserve
       * @param asset The address of the underlying asset of the reserve
       **/
      function activateReserve(address asset) external onlyPoolAdmin {
        DataTypes.ReserveConfigurationMap memory currentConfig = pool.getConfiguration(asset);
    
        currentConfig.setActive(true);
    
        pool.setConfiguration(asset, currentConfig.data);
    
        emit ReserveActivated(asset);
      }
    
      /**
       * @dev Deactivates a reserve
       * @param asset The address of the underlying asset of the reserve
       **/
      function deactivateReserve(address asset) external onlyPoolAdmin {
        _checkNoLiquidity(asset);
    
        DataTypes.ReserveConfigurationMap memory currentConfig = pool.getConfiguration(asset);
    
        currentConfig.setActive(false);
    
        pool.setConfiguration(asset, currentConfig.data);
    
        emit ReserveDeactivated(asset);
      }
    
      /**
       * @dev Freezes a reserve. A frozen reserve doesn't allow any new deposit, borrow or rate swap
       *  but allows repayments, liquidations, rate rebalances and withdrawals
       * @param asset The address of the underlying asset of the reserve
       **/
      function freezeReserve(address asset) external onlyPoolAdmin {
        DataTypes.ReserveConfigurationMap memory currentConfig = pool.getConfiguration(asset);
    
        currentConfig.setFrozen(true);
    
        pool.setConfiguration(asset, currentConfig.data);
    
        emit ReserveFrozen(asset);
      }
    
      /**
       * @dev Unfreezes a reserve
       * @param asset The address of the underlying asset of the reserve
       **/
      function unfreezeReserve(address asset) external onlyPoolAdmin {
        DataTypes.ReserveConfigurationMap memory currentConfig = pool.getConfiguration(asset);
    
        currentConfig.setFrozen(false);
    
        pool.setConfiguration(asset, currentConfig.data);
    
        emit ReserveUnfrozen(asset);
      }
    
      /**
       * @dev Updates the reserve factor of a reserve
       * @param asset The address of the underlying asset of the reserve
       * @param reserveFactor The new reserve factor of the reserve
       **/
      function setReserveFactor(address asset, uint256 reserveFactor) external onlyPoolAdmin {
        DataTypes.ReserveConfigurationMap memory currentConfig = pool.getConfiguration(asset);
    
        currentConfig.setReserveFactor(reserveFactor);
    
        pool.setConfiguration(asset, currentConfig.data);
    
        emit ReserveFactorChanged(asset, reserveFactor);
      }
    
      /**
       * @dev Sets the interest rate strategy of a reserve
       * @param asset The address of the underlying asset of the reserve
       * @param rateStrategyAddress The new address of the interest strategy contract
       **/
      function setReserveInterestRateStrategyAddress(address asset, address rateStrategyAddress)
        external
        onlyPoolAdmin
      {
        pool.setReserveInterestRateStrategyAddress(asset, rateStrategyAddress);
        emit ReserveInterestRateStrategyChanged(asset, rateStrategyAddress);
      }
    
      /**
       * @dev pauses or unpauses all the actions of the protocol, including aToken transfers
       * @param val true if protocol needs to be paused, false otherwise
       **/
      function setPoolPause(bool val) external onlyEmergencyAdmin {
        pool.setPause(val);
      }
    
      function _initTokenWithProxy(address implementation, bytes memory initParams)
        internal
        returns (address)
      {
        InitializableImmutableAdminUpgradeabilityProxy proxy =
          new InitializableImmutableAdminUpgradeabilityProxy(address(this));
    
        proxy.initialize(implementation, initParams);
    
        return address(proxy);
      }
    
      function _upgradeTokenImplementation(
        address proxyAddress,
        address implementation,
        bytes memory initParams
      ) internal {
        InitializableImmutableAdminUpgradeabilityProxy proxy =
          InitializableImmutableAdminUpgradeabilityProxy(payable(proxyAddress));
    
        proxy.upgradeToAndCall(implementation, initParams);
      }
    
      function _checkNoLiquidity(address asset) internal view {
        DataTypes.ReserveData memory reserveData = pool.getReserveData(asset);
    
        uint256 availableLiquidity = IERC20Detailed(asset).balanceOf(reserveData.aTokenAddress);
    
        require(
          availableLiquidity == 0 && reserveData.currentLiquidityRate == 0,
          Errors.LPC_RESERVE_LIQUIDITY_NOT_0
        );
      }
    }

    // SPDX-License-Identifier: agpl-3.0
    pragma solidity 0.6.12;
    
    import '../../../dependencies/openzeppelin/upgradeability/BaseUpgradeabilityProxy.sol';
    
    /**
     * @title BaseImmutableAdminUpgradeabilityProxy
     * @author Aave, inspired by the OpenZeppelin upgradeability proxy pattern
     * @dev This contract combines an upgradeability proxy with an authorization
     * mechanism for administrative tasks. The admin role is stored in an immutable, which
     * helps saving transactions costs
     * All external functions in this contract must be guarded by the
     * `ifAdmin` modifier. See ethereum/solidity#3864 for a Solidity
     * feature proposal that would enable this to be done automatically.
     */
    contract BaseImmutableAdminUpgradeabilityProxy is BaseUpgradeabilityProxy {
      address immutable ADMIN;
    
      constructor(address admin) public {
        ADMIN = admin;
      }
    
      modifier ifAdmin() {
        if (msg.sender == ADMIN) {
          _;
        } else {
          _fallback();
        }
      }
    
      /**
       * @return The address of the proxy admin.
       */
      function admin() external ifAdmin returns (address) {
        return ADMIN;
      }
    
      /**
       * @return The address of the implementation.
       */
      function implementation() external ifAdmin returns (address) {
        return _implementation();
      }
    
      /**
       * @dev Upgrade the backing implementation of the proxy.
       * Only the admin can call this function.
       * @param newImplementation Address of the new implementation.
       */
      function upgradeTo(address newImplementation) external ifAdmin {
        _upgradeTo(newImplementation);
      }
    
      /**
       * @dev Upgrade the backing implementation of the proxy and call a function
       * on the new implementation.
       * This is useful to initialize the proxied contract.
       * @param newImplementation Address of the new implementation.
       * @param data Data to send as msg.data in the low level call.
       * It should include the signature and the parameters of the function to be called, as described in
       * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
       */
      function upgradeToAndCall(address newImplementation, bytes calldata data)
        external
        payable
        ifAdmin
      {
        _upgradeTo(newImplementation);
        (bool success, ) = newImplementation.delegatecall(data);
        require(success);
      }
    
      /**
       * @dev Only fall back when the sender is not the admin.
       */
      function _willFallback() internal virtual override {
        require(msg.sender != ADMIN, 'Cannot call fallback function from the proxy admin');
        super._willFallback();
      }
    }

    // SPDX-License-Identifier: agpl-3.0
    pragma solidity 0.6.12;
    
    import './BaseImmutableAdminUpgradeabilityProxy.sol';
    import '../../../dependencies/openzeppelin/upgradeability/InitializableUpgradeabilityProxy.sol';
    
    /**
     * @title InitializableAdminUpgradeabilityProxy
     * @dev Extends BaseAdminUpgradeabilityProxy with an initializer function
     */
    contract InitializableImmutableAdminUpgradeabilityProxy is
      BaseImmutableAdminUpgradeabilityProxy,
      InitializableUpgradeabilityProxy
    {
      constructor(address admin) public BaseImmutableAdminUpgradeabilityProxy(admin) {}
    
      /**
       * @dev Only fall back when the sender is not the admin.
       */
      function _willFallback() internal override(BaseImmutableAdminUpgradeabilityProxy, Proxy) {
        BaseImmutableAdminUpgradeabilityProxy._willFallback();
      }
    }

    // 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;
    
    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}
    }

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