Source Code
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Contract Name:
SupplyLogic
Compiler Version
v0.8.24+commit.e11b9ed9
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: BUSL-1.1
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.10;
import {IERC20} from "../../../dependencies/openzeppelin/contracts/IERC20.sol";
import {GPv2SafeERC20} from "../../../dependencies/gnosis/contracts/GPv2SafeERC20.sol";
import {IAToken} from "../../../interfaces/IAToken.sol";
import {Errors} from "../helpers/Errors.sol";
import {UserConfiguration} from "../configuration/UserConfiguration.sol";
import {DataTypes} from "../types/DataTypes.sol";
import {WadRayMath} from "../math/WadRayMath.sol";
import {PercentageMath} from "../math/PercentageMath.sol";
import {ValidationLogic} from "./ValidationLogic.sol";
import {ReserveLogic} from "./ReserveLogic.sol";
import {ReserveConfiguration} from "../configuration/ReserveConfiguration.sol";
/**
* @title SupplyLogic library
* @author Aave
* @notice Implements the base logic for supply/withdraw
*/
library SupplyLogic {
using ReserveLogic for DataTypes.ReserveCache;
using ReserveLogic for DataTypes.ReserveData;
using GPv2SafeERC20 for IERC20;
using UserConfiguration for DataTypes.UserConfigurationMap;
using ReserveConfiguration for DataTypes.ReserveConfigurationMap;
using WadRayMath for uint256;
using PercentageMath for uint256;
// See `IPool` for descriptions
event ReserveUsedAsCollateralEnabled(
address indexed reserve,
address indexed user
);
event ReserveUsedAsCollateralDisabled(
address indexed reserve,
address indexed user
);
event Withdraw(
address indexed reserve,
address indexed user,
address indexed to,
uint256 amount
);
event Supply(
address indexed reserve,
address user,
address indexed onBehalfOf,
uint256 amount,
uint16 indexed referralCode
);
/**
* @notice Implements the supply feature. Through `supply()`, users supply assets to the Aave protocol.
* @dev Emits the `Supply()` event.
* @dev In the first supply action, `ReserveUsedAsCollateralEnabled()` is emitted, if the asset can be enabled as
* collateral.
* @param reservesData The state of all the reserves
* @param reservesList The addresses of all the active reserves
* @param userConfig The user configuration mapping that tracks the supplied/borrowed assets
* @param params The additional parameters needed to execute the supply function
*/
function executeSupply(
mapping(address => DataTypes.ReserveData) storage reservesData,
mapping(uint256 => address) storage reservesList,
DataTypes.UserConfigurationMap storage userConfig,
DataTypes.ExecuteSupplyParams memory params
) external {
DataTypes.ReserveData storage reserve = reservesData[params.asset];
DataTypes.ReserveCache memory reserveCache = reserve.cache();
reserve.updateState(reserveCache);
ValidationLogic.validateSupply(reserveCache, reserve, params.amount);
reserve.updateInterestRates(
reserveCache,
params.asset,
params.amount,
0
);
IERC20(params.asset).safeTransferFrom(
msg.sender,
reserveCache.aTokenAddress,
params.amount
);
bool isFirstSupply = IAToken(reserveCache.aTokenAddress).mint(
msg.sender,
params.onBehalfOf,
params.amount,
reserveCache.nextLiquidityIndex
);
if (isFirstSupply) {
if (
ValidationLogic.validateAutomaticUseAsCollateral(
reservesData,
reservesList,
userConfig,
reserveCache.reserveConfiguration,
reserveCache.aTokenAddress
)
) {
userConfig.setUsingAsCollateral(reserve.id, true);
emit ReserveUsedAsCollateralEnabled(
params.asset,
params.onBehalfOf
);
}
}
emit Supply(
params.asset,
msg.sender,
params.onBehalfOf,
params.amount,
params.referralCode
);
}
/**
* @notice Implements the withdraw feature. Through `withdraw()`, users redeem their aTokens for the underlying asset
* previously supplied in the Aave protocol.
* @dev Emits the `Withdraw()` event.
* @dev If the user withdraws everything, `ReserveUsedAsCollateralDisabled()` is emitted.
* @param reservesData The state of all the reserves
* @param reservesList The addresses of all the active reserves
* @param eModeCategories The configuration of all the efficiency mode categories
* @param userConfig The user configuration mapping that tracks the supplied/borrowed assets
* @param params The additional parameters needed to execute the withdraw function
* @return The actual amount withdrawn
*/
function executeWithdraw(
mapping(address => DataTypes.ReserveData) storage reservesData,
mapping(uint256 => address) storage reservesList,
mapping(uint8 => DataTypes.EModeCategory) storage eModeCategories,
DataTypes.UserConfigurationMap storage userConfig,
DataTypes.ExecuteWithdrawParams memory params
) external returns (uint256) {
DataTypes.ReserveData storage reserve = reservesData[params.asset];
DataTypes.ReserveCache memory reserveCache = reserve.cache();
reserve.updateState(reserveCache);
uint256 userBalance = IAToken(reserveCache.aTokenAddress)
.scaledBalanceOf(msg.sender)
.rayMul(reserveCache.nextLiquidityIndex);
uint256 amountToWithdraw = params.amount;
if (params.amount == type(uint256).max) {
amountToWithdraw = userBalance;
}
ValidationLogic.validateWithdraw(
reserveCache,
amountToWithdraw,
userBalance
);
reserve.updateInterestRates(
reserveCache,
params.asset,
0,
amountToWithdraw
);
bool isCollateral = userConfig.isUsingAsCollateral(reserve.id);
if (isCollateral && amountToWithdraw == userBalance) {
userConfig.setUsingAsCollateral(reserve.id, false);
emit ReserveUsedAsCollateralDisabled(params.asset, msg.sender);
}
IAToken(reserveCache.aTokenAddress).burn(
msg.sender,
params.to,
amountToWithdraw,
reserveCache.nextLiquidityIndex
);
if (isCollateral && userConfig.isBorrowingAny()) {
ValidationLogic.validateHFAndLtv(
reservesData,
reservesList,
eModeCategories,
userConfig,
params.asset,
msg.sender,
params.reservesCount,
params.oracle,
params.userEModeCategory
);
}
emit Withdraw(params.asset, msg.sender, params.to, amountToWithdraw);
return amountToWithdraw;
}
/**
* @notice Validates a transfer of aTokens. The sender is subjected to health factor validation to avoid
* collateralization constraints violation.
* @dev Emits the `ReserveUsedAsCollateralEnabled()` event for the `to` account, if the asset is being activated as
* collateral.
* @dev In case the `from` user transfers everything, `ReserveUsedAsCollateralDisabled()` is emitted for `from`.
* @param reservesData The state of all the reserves
* @param reservesList The addresses of all the active reserves
* @param eModeCategories The configuration of all the efficiency mode categories
* @param usersConfig The users configuration mapping that track the supplied/borrowed assets
* @param params The additional parameters needed to execute the finalizeTransfer function
*/
function executeFinalizeTransfer(
mapping(address => DataTypes.ReserveData) storage reservesData,
mapping(uint256 => address) storage reservesList,
mapping(uint8 => DataTypes.EModeCategory) storage eModeCategories,
mapping(address => DataTypes.UserConfigurationMap) storage usersConfig,
DataTypes.FinalizeTransferParams memory params
) external {
DataTypes.ReserveData storage reserve = reservesData[params.asset];
ValidationLogic.validateTransfer(reserve);
uint256 reserveId = reserve.id;
if (params.from != params.to && params.amount != 0) {
DataTypes.UserConfigurationMap storage fromConfig = usersConfig[
params.from
];
if (fromConfig.isUsingAsCollateral(reserveId)) {
if (fromConfig.isBorrowingAny()) {
ValidationLogic.validateHFAndLtv(
reservesData,
reservesList,
eModeCategories,
usersConfig[params.from],
params.asset,
params.from,
params.reservesCount,
params.oracle,
params.fromEModeCategory
);
}
if (params.balanceFromBefore == params.amount) {
fromConfig.setUsingAsCollateral(reserveId, false);
emit ReserveUsedAsCollateralDisabled(
params.asset,
params.from
);
}
}
if (params.balanceToBefore == 0) {
DataTypes.UserConfigurationMap storage toConfig = usersConfig[
params.to
];
if (
ValidationLogic.validateAutomaticUseAsCollateral(
reservesData,
reservesList,
toConfig,
reserve.configuration,
reserve.aTokenAddress
)
) {
toConfig.setUsingAsCollateral(reserveId, true);
emit ReserveUsedAsCollateralEnabled(
params.asset,
params.to
);
}
}
}
}
/**
* @notice Executes the 'set as collateral' feature. A user can choose to activate or deactivate an asset as
* collateral at any point in time. Deactivating an asset as collateral is subjected to the usual health factor
* checks to ensure collateralization.
* @dev Emits the `ReserveUsedAsCollateralEnabled()` event if the asset can be activated as collateral.
* @dev In case the asset is being deactivated as collateral, `ReserveUsedAsCollateralDisabled()` is emitted.
* @param reservesData The state of all the reserves
* @param reservesList The addresses of all the active reserves
* @param eModeCategories The configuration of all the efficiency mode categories
* @param userConfig The users configuration mapping that track the supplied/borrowed assets
* @param asset The address of the asset being configured as collateral
* @param useAsCollateral True if the user wants to set the asset as collateral, false otherwise
* @param reservesCount The number of initialized reserves
* @param priceOracle The address of the price oracle
* @param userEModeCategory The eMode category chosen by the user
*/
function executeUseReserveAsCollateral(
mapping(address => DataTypes.ReserveData) storage reservesData,
mapping(uint256 => address) storage reservesList,
mapping(uint8 => DataTypes.EModeCategory) storage eModeCategories,
DataTypes.UserConfigurationMap storage userConfig,
address asset,
bool useAsCollateral,
uint256 reservesCount,
address priceOracle,
uint8 userEModeCategory
) external {
DataTypes.ReserveData storage reserve = reservesData[asset];
DataTypes.ReserveCache memory reserveCache = reserve.cache();
uint256 userBalance = IERC20(reserveCache.aTokenAddress).balanceOf(
msg.sender
);
ValidationLogic.validateSetUseReserveAsCollateral(
reserveCache,
userBalance
);
if (useAsCollateral == userConfig.isUsingAsCollateral(reserve.id))
return;
if (useAsCollateral) {
require(
ValidationLogic.validateUseAsCollateral(
reservesData,
reservesList,
userConfig,
reserveCache.reserveConfiguration
),
Errors.USER_IN_ISOLATION_MODE_OR_LTV_ZERO
);
userConfig.setUsingAsCollateral(reserve.id, true);
emit ReserveUsedAsCollateralEnabled(asset, msg.sender);
} else {
userConfig.setUsingAsCollateral(reserve.id, false);
ValidationLogic.validateHFAndLtv(
reservesData,
reservesList,
eModeCategories,
userConfig,
asset,
msg.sender,
reservesCount,
priceOracle,
userEModeCategory
);
emit ReserveUsedAsCollateralDisabled(asset, msg.sender);
}
}
}// SPDX-License-Identifier: LGPL-3.0-or-later
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
import {IERC20} from "../../openzeppelin/contracts/IERC20.sol";
/// @title Gnosis Protocol v2 Safe ERC20 Transfer Library
/// @author Gnosis Developers
/// @dev Gas-efficient version of Openzeppelin's SafeERC20 contract.
library GPv2SafeERC20 {
/// @dev Wrapper around a call to the ERC20 function `transfer` that reverts
/// also when the token returns `false`.
function safeTransfer(IERC20 token, address to, uint256 value) internal {
bytes4 selector_ = token.transfer.selector;
// solhint-disable-next-line no-inline-assembly
assembly {
let freeMemoryPointer := mload(0x40)
mstore(freeMemoryPointer, selector_)
mstore(
add(freeMemoryPointer, 4),
and(to, 0xffffffffffffffffffffffffffffffffffffffff)
)
mstore(add(freeMemoryPointer, 36), value)
if iszero(call(gas(), token, 0, freeMemoryPointer, 68, 0, 0)) {
returndatacopy(0, 0, returndatasize())
revert(0, returndatasize())
}
}
require(getLastTransferResult(token), "GPv2: failed transfer");
}
/// @dev Wrapper around a call to the ERC20 function `transferFrom` that
/// reverts also when the token returns `false`.
function safeTransferFrom(
IERC20 token,
address from,
address to,
uint256 value
) internal {
bytes4 selector_ = token.transferFrom.selector;
// solhint-disable-next-line no-inline-assembly
assembly {
let freeMemoryPointer := mload(0x40)
mstore(freeMemoryPointer, selector_)
mstore(
add(freeMemoryPointer, 4),
and(from, 0xffffffffffffffffffffffffffffffffffffffff)
)
mstore(
add(freeMemoryPointer, 36),
and(to, 0xffffffffffffffffffffffffffffffffffffffff)
)
mstore(add(freeMemoryPointer, 68), value)
if iszero(call(gas(), token, 0, freeMemoryPointer, 100, 0, 0)) {
returndatacopy(0, 0, returndatasize())
revert(0, returndatasize())
}
}
require(getLastTransferResult(token), "GPv2: failed transferFrom");
}
/// @dev Verifies that the last return was a successful `transfer*` call.
/// This is done by checking that the return data is either empty, or
/// is a valid ABI encoded boolean.
function getLastTransferResult(
IERC20 token
) private view returns (bool success) {
// NOTE: Inspecting previous return data requires assembly. Note that
// we write the return data to memory 0 in the case where the return
// data size is 32, this is OK since the first 64 bytes of memory are
// reserved by Solidy as a scratch space that can be used within
// assembly blocks.
// <https://docs.soliditylang.org/en/v0.7.6/internals/layout_in_memory.html>
// solhint-disable-next-line no-inline-assembly
assembly {
/// @dev Revert with an ABI encoded Solidity error with a message
/// that fits into 32-bytes.
///
/// An ABI encoded Solidity error has the following memory layout:
///
/// ------------+----------------------------------
/// byte range | value
/// ------------+----------------------------------
/// 0x00..0x04 | selector("Error(string)")
/// 0x04..0x24 | string offset (always 0x20)
/// 0x24..0x44 | string length
/// 0x44..0x64 | string value, padded to 32-bytes
function revertWithMessage(length, message) {
mstore(0x00, "\x08\xc3\x79\xa0")
mstore(0x04, 0x20)
mstore(0x24, length)
mstore(0x44, message)
revert(0x00, 0x64)
}
switch returndatasize()
// Non-standard ERC20 transfer without return.
case 0 {
// NOTE: When the return data size is 0, verify that there
// is code at the address. This is done in order to maintain
// compatibility with Solidity calling conventions.
// <https://docs.soliditylang.org/en/v0.7.6/control-structures.html#external-function-calls>
if iszero(extcodesize(token)) {
revertWithMessage(20, "GPv2: not a contract")
}
success := 1
}
// Standard ERC20 transfer returning boolean success value.
case 32 {
returndatacopy(0, 0, returndatasize())
// NOTE: For ABI encoding v1, any non-zero value is accepted
// as `true` for a boolean. In order to stay compatible with
// OpenZeppelin's `SafeERC20` library which is known to work
// with the existing ERC20 implementation we care about,
// make sure we return success for any non-zero return value
// from the `transfer*` call.
success := iszero(iszero(mload(0)))
}
default {
revertWithMessage(31, "GPv2: malformed transfer result")
}
}
}
}// SPDX-License-Identifier: MIT
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)
pragma solidity ^0.8.0;
/**
* @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) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
/**
* @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"
);
(bool success, ) = recipient.call{value: amount}("");
require(
success,
"Address: unable to send value, recipient may have reverted"
);
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data
) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return
functionCallWithValue(
target,
data,
value,
"Address: low-level call with value failed"
);
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(
address(this).balance >= value,
"Address: insufficient balance for call"
);
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(
data
);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data
) internal view returns (bytes memory) {
return
functionStaticCall(
target,
data,
"Address: low-level static call failed"
);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data
) internal returns (bytes memory) {
return
functionDelegateCall(
target,
data,
"Address: low-level delegate call failed"
);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}// SPDX-License-Identifier: MIT
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
/*
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with GSN meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return payable(msg.sender);
}
function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}// SPDX-License-Identifier: MIT
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
/**
* @dev External interface of AccessControl declared to support ERC165 detection.
*/
interface IAccessControl {
/**
* @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
*
* `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
* {RoleAdminChanged} not being emitted signaling this.
*
* _Available since v3.1._
*/
event RoleAdminChanged(
bytes32 indexed role,
bytes32 indexed previousAdminRole,
bytes32 indexed newAdminRole
);
/**
* @dev Emitted when `account` is granted `role`.
*
* `sender` is the account that originated the contract call, an admin role
* bearer except when using {AccessControl-_setupRole}.
*/
event RoleGranted(
bytes32 indexed role,
address indexed account,
address indexed sender
);
/**
* @dev Emitted when `account` is revoked `role`.
*
* `sender` is the account that originated the contract call:
* - if using `revokeRole`, it is the admin role bearer
* - if using `renounceRole`, it is the role bearer (i.e. `account`)
*/
event RoleRevoked(
bytes32 indexed role,
address indexed account,
address indexed sender
);
/**
* @dev Returns `true` if `account` has been granted `role`.
*/
function hasRole(
bytes32 role,
address account
) external view returns (bool);
/**
* @dev Returns the admin role that controls `role`. See {grantRole} and
* {revokeRole}.
*
* To change a role's admin, use {AccessControl-_setRoleAdmin}.
*/
function getRoleAdmin(bytes32 role) external view returns (bytes32);
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function grantRole(bytes32 role, address account) external;
/**
* @dev Revokes `role` from `account`.
*
* If `account` had been granted `role`, emits a {RoleRevoked} event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function revokeRole(bytes32 role, address account) external;
/**
* @dev Revokes `role` from the calling account.
*
* Roles are often managed via {grantRole} and {revokeRole}: this function's
* purpose is to provide a mechanism for accounts to lose their privileges
* if they are compromised (such as when a trusted device is misplaced).
*
* If the calling account had been granted `role`, emits a {RoleRevoked}
* event.
*
* Requirements:
*
* - the caller must be `account`.
*/
function renounceRole(bytes32 role, address account) external;
}// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
/**
* @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
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
import {IERC20} from "./IERC20.sol";
interface IERC20Detailed is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}// SPDX-License-Identifier: MIT
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
// OpenZeppelin Contracts v4.4.1 (utils/math/SafeCast.sol)
pragma solidity ^0.8.0;
/**
* @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow
* checks.
*
* Downcasting from uint256/int256 in Solidity does not revert on overflow. This can
* easily result in undesired exploitation or bugs, since developers usually
* assume that overflows raise errors. `SafeCast` restores this intuition by
* reverting the transaction when such 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.
*
* Can be combined with {SafeMath} and {SignedSafeMath} to extend it to smaller types, by performing
* all math on `uint256` and `int256` and then downcasting.
*/
library SafeCast {
/**
* @dev Returns the downcasted uint224 from uint256, reverting on
* overflow (when the input is greater than largest uint224).
*
* Counterpart to Solidity's `uint224` operator.
*
* Requirements:
*
* - input must fit into 224 bits
*/
function toUint224(uint256 value) internal pure returns (uint224) {
require(
value <= type(uint224).max,
"SafeCast: value doesn't fit in 224 bits"
);
return uint224(value);
}
/**
* @dev Returns the downcasted uint128 from uint256, reverting on
* overflow (when the input is greater than largest uint128).
*
* Counterpart to Solidity's `uint128` operator.
*
* Requirements:
*
* - input must fit into 128 bits
*/
function toUint128(uint256 value) internal pure returns (uint128) {
require(
value <= type(uint128).max,
"SafeCast: value doesn't fit in 128 bits"
);
return uint128(value);
}
/**
* @dev Returns the downcasted uint96 from uint256, reverting on
* overflow (when the input is greater than largest uint96).
*
* Counterpart to Solidity's `uint96` operator.
*
* Requirements:
*
* - input must fit into 96 bits
*/
function toUint96(uint256 value) internal pure returns (uint96) {
require(
value <= type(uint96).max,
"SafeCast: value doesn't fit in 96 bits"
);
return uint96(value);
}
/**
* @dev Returns the downcasted uint64 from uint256, reverting on
* overflow (when the input is greater than largest uint64).
*
* Counterpart to Solidity's `uint64` operator.
*
* Requirements:
*
* - input must fit into 64 bits
*/
function toUint64(uint256 value) internal pure returns (uint64) {
require(
value <= type(uint64).max,
"SafeCast: value doesn't fit in 64 bits"
);
return uint64(value);
}
/**
* @dev Returns the downcasted uint32 from uint256, reverting on
* overflow (when the input is greater than largest uint32).
*
* Counterpart to Solidity's `uint32` operator.
*
* Requirements:
*
* - input must fit into 32 bits
*/
function toUint32(uint256 value) internal pure returns (uint32) {
require(
value <= type(uint32).max,
"SafeCast: value doesn't fit in 32 bits"
);
return uint32(value);
}
/**
* @dev Returns the downcasted uint16 from uint256, reverting on
* overflow (when the input is greater than largest uint16).
*
* Counterpart to Solidity's `uint16` operator.
*
* Requirements:
*
* - input must fit into 16 bits
*/
function toUint16(uint256 value) internal pure returns (uint16) {
require(
value <= type(uint16).max,
"SafeCast: value doesn't fit in 16 bits"
);
return uint16(value);
}
/**
* @dev Returns the downcasted uint8 from uint256, reverting on
* overflow (when the input is greater than largest uint8).
*
* Counterpart to Solidity's `uint8` operator.
*
* Requirements:
*
* - input must fit into 8 bits.
*/
function toUint8(uint256 value) internal pure returns (uint8) {
require(
value <= type(uint8).max,
"SafeCast: value doesn't fit in 8 bits"
);
return uint8(value);
}
/**
* @dev Converts a signed int256 into an unsigned uint256.
*
* Requirements:
*
* - input must be greater than or equal to 0.
*/
function toUint256(int256 value) internal pure returns (uint256) {
require(value >= 0, "SafeCast: value must be positive");
return uint256(value);
}
/**
* @dev Returns the downcasted int128 from int256, reverting on
* overflow (when the input is less than smallest int128 or
* greater than largest int128).
*
* Counterpart to Solidity's `int128` operator.
*
* Requirements:
*
* - input must fit into 128 bits
*
* _Available since v3.1._
*/
function toInt128(int256 value) internal pure returns (int128) {
require(
value >= type(int128).min && value <= type(int128).max,
"SafeCast: value doesn't fit in 128 bits"
);
return int128(value);
}
/**
* @dev Returns the downcasted int64 from int256, reverting on
* overflow (when the input is less than smallest int64 or
* greater than largest int64).
*
* Counterpart to Solidity's `int64` operator.
*
* Requirements:
*
* - input must fit into 64 bits
*
* _Available since v3.1._
*/
function toInt64(int256 value) internal pure returns (int64) {
require(
value >= type(int64).min && value <= type(int64).max,
"SafeCast: value doesn't fit in 64 bits"
);
return int64(value);
}
/**
* @dev Returns the downcasted int32 from int256, reverting on
* overflow (when the input is less than smallest int32 or
* greater than largest int32).
*
* Counterpart to Solidity's `int32` operator.
*
* Requirements:
*
* - input must fit into 32 bits
*
* _Available since v3.1._
*/
function toInt32(int256 value) internal pure returns (int32) {
require(
value >= type(int32).min && value <= type(int32).max,
"SafeCast: value doesn't fit in 32 bits"
);
return int32(value);
}
/**
* @dev Returns the downcasted int16 from int256, reverting on
* overflow (when the input is less than smallest int16 or
* greater than largest int16).
*
* Counterpart to Solidity's `int16` operator.
*
* Requirements:
*
* - input must fit into 16 bits
*
* _Available since v3.1._
*/
function toInt16(int256 value) internal pure returns (int16) {
require(
value >= type(int16).min && value <= type(int16).max,
"SafeCast: value doesn't fit in 16 bits"
);
return int16(value);
}
/**
* @dev Returns the downcasted int8 from int256, reverting on
* overflow (when the input is less than smallest int8 or
* greater than largest int8).
*
* Counterpart to Solidity's `int8` operator.
*
* Requirements:
*
* - input must fit into 8 bits.
*
* _Available since v3.1._
*/
function toInt8(int256 value) internal pure returns (int8) {
require(
value >= type(int8).min && value <= type(int8).max,
"SafeCast: value doesn't fit in 8 bits"
);
return int8(value);
}
/**
* @dev Converts an unsigned uint256 into a signed int256.
*
* Requirements:
*
* - input must be less than or equal to maxInt256.
*/
function toInt256(uint256 value) internal pure returns (int256) {
// Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive
require(
value <= uint256(type(int256).max),
"SafeCast: value doesn't fit in an int256"
);
return int256(value);
}
}// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
import {IPoolAddressesProvider} from "./IPoolAddressesProvider.sol";
/**
* @title IACLManager
* @author Aave
* @notice Defines the basic interface for the ACL Manager
*/
interface IACLManager {
/**
* @notice Returns the contract address of the PoolAddressesProvider
* @return The address of the PoolAddressesProvider
*/
function ADDRESSES_PROVIDER()
external
view
returns (IPoolAddressesProvider);
/**
* @notice Returns the identifier of the PoolAdmin role
* @return The id of the PoolAdmin role
*/
function POOL_ADMIN_ROLE() external view returns (bytes32);
/**
* @notice Returns the identifier of the EmergencyAdmin role
* @return The id of the EmergencyAdmin role
*/
function EMERGENCY_ADMIN_ROLE() external view returns (bytes32);
/**
* @notice Returns the identifier of the RiskAdmin role
* @return The id of the RiskAdmin role
*/
function RISK_ADMIN_ROLE() external view returns (bytes32);
/**
* @notice Returns the identifier of the FlashBorrower role
* @return The id of the FlashBorrower role
*/
function FLASH_BORROWER_ROLE() external view returns (bytes32);
/**
* @notice Returns the identifier of the Bridge role
* @return The id of the Bridge role
*/
function BRIDGE_ROLE() external view returns (bytes32);
/**
* @notice Returns the identifier of the AssetListingAdmin role
* @return The id of the AssetListingAdmin role
*/
function ASSET_LISTING_ADMIN_ROLE() external view returns (bytes32);
/**
* @notice Set the role as admin of a specific role.
* @dev By default the admin role for all roles is `DEFAULT_ADMIN_ROLE`.
* @param role The role to be managed by the admin role
* @param adminRole The admin role
*/
function setRoleAdmin(bytes32 role, bytes32 adminRole) external;
/**
* @notice Adds a new admin as PoolAdmin
* @param admin The address of the new admin
*/
function addPoolAdmin(address admin) external;
/**
* @notice Removes an admin as PoolAdmin
* @param admin The address of the admin to remove
*/
function removePoolAdmin(address admin) external;
/**
* @notice Returns true if the address is PoolAdmin, false otherwise
* @param admin The address to check
* @return True if the given address is PoolAdmin, false otherwise
*/
function isPoolAdmin(address admin) external view returns (bool);
/**
* @notice Adds a new admin as EmergencyAdmin
* @param admin The address of the new admin
*/
function addEmergencyAdmin(address admin) external;
/**
* @notice Removes an admin as EmergencyAdmin
* @param admin The address of the admin to remove
*/
function removeEmergencyAdmin(address admin) external;
/**
* @notice Returns true if the address is EmergencyAdmin, false otherwise
* @param admin The address to check
* @return True if the given address is EmergencyAdmin, false otherwise
*/
function isEmergencyAdmin(address admin) external view returns (bool);
/**
* @notice Adds a new admin as RiskAdmin
* @param admin The address of the new admin
*/
function addRiskAdmin(address admin) external;
/**
* @notice Removes an admin as RiskAdmin
* @param admin The address of the admin to remove
*/
function removeRiskAdmin(address admin) external;
/**
* @notice Returns true if the address is RiskAdmin, false otherwise
* @param admin The address to check
* @return True if the given address is RiskAdmin, false otherwise
*/
function isRiskAdmin(address admin) external view returns (bool);
/**
* @notice Adds a new address as FlashBorrower
* @param borrower The address of the new FlashBorrower
*/
function addFlashBorrower(address borrower) external;
/**
* @notice Removes an address as FlashBorrower
* @param borrower The address of the FlashBorrower to remove
*/
function removeFlashBorrower(address borrower) external;
/**
* @notice Returns true if the address is FlashBorrower, false otherwise
* @param borrower The address to check
* @return True if the given address is FlashBorrower, false otherwise
*/
function isFlashBorrower(address borrower) external view returns (bool);
/**
* @notice Adds a new address as Bridge
* @param bridge The address of the new Bridge
*/
function addBridge(address bridge) external;
/**
* @notice Removes an address as Bridge
* @param bridge The address of the bridge to remove
*/
function removeBridge(address bridge) external;
/**
* @notice Returns true if the address is Bridge, false otherwise
* @param bridge The address to check
* @return True if the given address is Bridge, false otherwise
*/
function isBridge(address bridge) external view returns (bool);
/**
* @notice Adds a new admin as AssetListingAdmin
* @param admin The address of the new admin
*/
function addAssetListingAdmin(address admin) external;
/**
* @notice Removes an admin as AssetListingAdmin
* @param admin The address of the admin to remove
*/
function removeAssetListingAdmin(address admin) external;
/**
* @notice Returns true if the address is AssetListingAdmin, false otherwise
* @param admin The address to check
* @return True if the given address is AssetListingAdmin, false otherwise
*/
function isAssetListingAdmin(address admin) external view returns (bool);
}// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
import {IERC20} from "../dependencies/openzeppelin/contracts/IERC20.sol";
import {IScaledBalanceToken} from "./IScaledBalanceToken.sol";
import {IInitializableAToken} from "./IInitializableAToken.sol";
/**
* @title IAToken
* @author Aave
* @notice Defines the basic interface for an AToken.
*/
interface IAToken is IERC20, IScaledBalanceToken, IInitializableAToken {
/**
* @dev Emitted during the transfer action
* @param from The user whose tokens are being transferred
* @param to The recipient
* @param value The scaled amount being transferred
* @param index The next liquidity index of the reserve
*/
event BalanceTransfer(
address indexed from,
address indexed to,
uint256 value,
uint256 index
);
/**
* @notice Mints `amount` aTokens to `user`
* @param caller The address performing the mint
* @param onBehalfOf The address of the user that will receive the minted aTokens
* @param amount The amount of tokens getting minted
* @param index The next liquidity index of the reserve
* @return `true` if the the previous balance of the user was 0
*/
function mint(
address caller,
address onBehalfOf,
uint256 amount,
uint256 index
) external returns (bool);
/**
* @notice Burns aTokens from `user` and sends the equivalent amount of underlying to `receiverOfUnderlying`
* @dev In some instances, the mint event could be emitted from a burn transaction
* if the amount to burn is less than the interest that the user accrued
* @param from The address from which the aTokens will be burned
* @param receiverOfUnderlying The address that will receive the underlying
* @param amount The amount being burned
* @param index The next liquidity index of the reserve
*/
function burn(
address from,
address receiverOfUnderlying,
uint256 amount,
uint256 index
) external;
/**
* @notice Mints aTokens to the reserve treasury
* @param amount The amount of tokens getting minted
* @param index The next liquidity index of the reserve
*/
function mintToTreasury(uint256 amount, uint256 index) external;
/**
* @notice Transfers aTokens in the event of a borrow being liquidated, in case the liquidators reclaims the aToken
* @param from The address getting liquidated, current owner of the aTokens
* @param to The recipient
* @param value The amount of tokens getting transferred
*/
function transferOnLiquidation(
address from,
address to,
uint256 value
) external;
/**
* @notice Transfers the underlying asset to `target`.
* @dev Used by the Pool to transfer assets in borrow(), withdraw() and flashLoan()
* @param target The recipient of the underlying
* @param amount The amount getting transferred
*/
function transferUnderlyingTo(address target, uint256 amount) external;
/**
* @notice Handles the underlying received by the aToken after the transfer has been completed.
* @dev The default implementation is empty as with standard ERC20 tokens, nothing needs to be done after the
* transfer is concluded. However in the future there may be aTokens that allow for example to stake the underlying
* to receive LM rewards. In that case, `handleRepayment()` would perform the staking of the underlying asset.
* @param user The user executing the repayment
* @param onBehalfOf The address of the user who will get his debt reduced/removed
* @param amount The amount getting repaid
*/
function handleRepayment(
address user,
address onBehalfOf,
uint256 amount
) external;
/**
* @notice Allow passing a signed message to approve spending
* @dev implements the permit function as for
* https://github.com/ethereum/EIPs/blob/8a34d644aacf0f9f8f00815307fd7dd5da07655f/EIPS/eip-2612.md
* @param owner The owner of the funds
* @param spender The spender
* @param value The amount
* @param deadline The deadline timestamp, type(uint256).max for max deadline
* @param v Signature param
* @param s Signature param
* @param r Signature param
*/
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
/**
* @notice Returns the address of the underlying asset of this aToken (E.g. WETH for aWETH)
* @return The address of the underlying asset
*/
function UNDERLYING_ASSET_ADDRESS() external view returns (address);
/**
* @notice Returns the address of the Aave treasury, receiving the fees on this aToken.
* @return Address of the Aave treasury
*/
function RESERVE_TREASURY_ADDRESS() external view returns (address);
/**
* @notice Get the domain separator for the token
* @dev Return cached value if chainId matches cache, otherwise recomputes separator
* @return The domain separator of the token at current chain
*/
function DOMAIN_SEPARATOR() external view returns (bytes32);
/**
* @notice Returns the nonce for owner.
* @param owner The address of the owner
* @return The nonce of the owner
*/
function nonces(address owner) external view returns (uint256);
/**
* @notice Rescue and transfer tokens locked in this contract
* @param token The address of the token
* @param to The address of the recipient
* @param amount The amount of token to transfer
*/
function rescueTokens(address token, address to, uint256 amount) external;
}// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
/**
* @title IAaveIncentivesController
* @author Aave
* @notice Defines the basic interface for an Aave Incentives Controller.
* @dev It only contains one single function, needed as a hook on aToken and debtToken transfers.
*/
interface IAaveIncentivesController {
/**
* @dev Called by the corresponding asset on transfer hook in order to update the rewards distribution.
* @dev The units of `totalSupply` and `userBalance` should be the same.
* @param user The address of the user whose asset balance has changed
* @param totalSupply The total supply of the asset prior to user balance change
* @param userBalance The previous user balance prior to balance change
*/
function handleAction(
address user,
uint256 totalSupply,
uint256 userBalance
) external;
}// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
import {IAaveIncentivesController} from "./IAaveIncentivesController.sol";
import {IPool} from "./IPool.sol";
/**
* @title IInitializableAToken
* @author Aave
* @notice Interface for the initialize function on AToken
*/
interface IInitializableAToken {
/**
* @dev Emitted when an aToken is initialized
* @param underlyingAsset The address of the underlying asset
* @param pool The address of the associated 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
);
/**
* @notice Initializes the aToken
* @param pool The pool contract that is initializing this contract
* @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
* @param params A set of encoded parameters for additional initialization
*/
function initialize(
IPool pool,
address treasury,
address underlyingAsset,
IAaveIncentivesController incentivesController,
uint8 aTokenDecimals,
string calldata aTokenName,
string calldata aTokenSymbol,
bytes calldata params
) external;
}// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
import {IAaveIncentivesController} from "./IAaveIncentivesController.sol";
import {IPool} from "./IPool.sol";
/**
* @title IInitializableDebtToken
* @author Aave
* @notice Interface for the initialize function common between debt tokens
*/
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 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
);
/**
* @notice Initializes the debt token.
* @param pool The pool contract that is initializing this contract
* @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
* @param params A set of encoded parameters for additional initialization
*/
function initialize(
IPool pool,
address underlyingAsset,
IAaveIncentivesController incentivesController,
uint8 debtTokenDecimals,
string memory debtTokenName,
string memory debtTokenSymbol,
bytes calldata params
) external;
}// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
import {IPoolAddressesProvider} from "./IPoolAddressesProvider.sol";
import {DataTypes} from "../protocol/libraries/types/DataTypes.sol";
/**
* @title IPool
* @author Aave
* @notice Defines the basic interface for an Aave Pool.
*/
interface IPool {
/**
* @dev Emitted on mintUnbacked()
* @param reserve The address of the underlying asset of the reserve
* @param user The address initiating the supply
* @param onBehalfOf The beneficiary of the supplied assets, receiving the aTokens
* @param amount The amount of supplied assets
* @param referralCode The referral code used
*/
event MintUnbacked(
address indexed reserve,
address user,
address indexed onBehalfOf,
uint256 amount,
uint16 indexed referralCode
);
/**
* @dev Emitted on backUnbacked()
* @param reserve The address of the underlying asset of the reserve
* @param backer The address paying for the backing
* @param amount The amount added as backing
* @param fee The amount paid in fees
*/
event BackUnbacked(
address indexed reserve,
address indexed backer,
uint256 amount,
uint256 fee
);
/**
* @dev Emitted on supply()
* @param reserve The address of the underlying asset of the reserve
* @param user The address initiating the supply
* @param onBehalfOf The beneficiary of the supply, receiving the aTokens
* @param amount The amount supplied
* @param referralCode The referral code used
*/
event Supply(
address indexed reserve,
address user,
address indexed onBehalfOf,
uint256 amount,
uint16 indexed referralCode
);
/**
* @dev Emitted on withdraw()
* @param reserve The address of the underlying asset being withdrawn
* @param user The address initiating the withdrawal, owner of aTokens
* @param to The 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 interestRateMode The rate mode: 1 for Stable, 2 for Variable
* @param borrowRate The numeric rate at which the user has borrowed, expressed in ray
* @param referralCode The referral code used
*/
event Borrow(
address indexed reserve,
address user,
address indexed onBehalfOf,
uint256 amount,
DataTypes.InterestRateMode interestRateMode,
uint256 borrowRate,
uint16 indexed referralCode
);
/**
* @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
* @param useATokens True if the repayment is done using aTokens, `false` if done with underlying asset directly
*/
event Repay(
address indexed reserve,
address indexed user,
address indexed repayer,
uint256 amount,
bool useATokens
);
/**
* @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 interestRateMode The current interest rate mode of the position being swapped: 1 for Stable, 2 for Variable
*/
event SwapBorrowRateMode(
address indexed reserve,
address indexed user,
DataTypes.InterestRateMode interestRateMode
);
/**
* @dev Emitted on borrow(), repay() and liquidationCall() when using isolated assets
* @param asset The address of the underlying asset of the reserve
* @param totalDebt The total isolation mode debt for the reserve
*/
event IsolationModeTotalDebtUpdated(
address indexed asset,
uint256 totalDebt
);
/**
* @dev Emitted when the user selects a certain asset category for eMode
* @param user The address of the user
* @param categoryId The category id
*/
event UserEModeSet(address indexed user, uint8 categoryId);
/**
* @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 interestRateMode The flashloan mode: 0 for regular flashloan, 1 for Stable debt, 2 for Variable debt
* @param premium The fee flash borrowed
* @param referralCode The referral code used
*/
event FlashLoan(
address indexed target,
address initiator,
address indexed asset,
uint256 amount,
DataTypes.InterestRateMode interestRateMode,
uint256 premium,
uint16 indexed referralCode
);
/**
* @dev Emitted when a borrower is liquidated.
* @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 liquidator
* @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.
* @param reserve The address of the underlying asset of the reserve
* @param liquidityRate The next liquidity rate
* @param stableBorrowRate The next stable borrow rate
* @param variableBorrowRate The next variable borrow rate
* @param liquidityIndex The next liquidity index
* @param variableBorrowIndex The next variable borrow index
*/
event ReserveDataUpdated(
address indexed reserve,
uint256 liquidityRate,
uint256 stableBorrowRate,
uint256 variableBorrowRate,
uint256 liquidityIndex,
uint256 variableBorrowIndex
);
/**
* @dev Emitted when the protocol treasury receives minted aTokens from the accrued interest.
* @param reserve The address of the reserve
* @param amountMinted The amount minted to the treasury
*/
event MintedToTreasury(address indexed reserve, uint256 amountMinted);
/**
* @notice Mints an `amount` of aTokens to the `onBehalfOf`
* @param asset The address of the underlying asset to mint
* @param amount The amount to mint
* @param onBehalfOf The address that will receive the aTokens
* @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 mintUnbacked(
address asset,
uint256 amount,
address onBehalfOf,
uint16 referralCode
) external;
/**
* @notice Back the current unbacked underlying with `amount` and pay `fee`.
* @param asset The address of the underlying asset to back
* @param amount The amount to back
* @param fee The amount paid in fees
* @return The backed amount
*/
function backUnbacked(
address asset,
uint256 amount,
uint256 fee
) external returns (uint256);
/**
* @notice Supplies an `amount` of underlying asset into the reserve, receiving in return overlying aTokens.
* - E.g. User supplies 100 USDC and gets in return 100 aUSDC
* @param asset The address of the underlying asset to supply
* @param amount The amount to be supplied
* @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 supply(
address asset,
uint256 amount,
address onBehalfOf,
uint16 referralCode
) external;
/**
* @notice Supply with transfer approval of asset to be supplied done via permit function
* see: https://eips.ethereum.org/EIPS/eip-2612 and https://eips.ethereum.org/EIPS/eip-713
* @param asset The address of the underlying asset to supply
* @param amount The amount to be supplied
* @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 deadline The deadline timestamp that the permit is valid
* @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 permitV The V parameter of ERC712 permit sig
* @param permitR The R parameter of ERC712 permit sig
* @param permitS The S parameter of ERC712 permit sig
*/
function supplyWithPermit(
address asset,
uint256 amount,
address onBehalfOf,
uint16 referralCode,
uint256 deadline,
uint8 permitV,
bytes32 permitR,
bytes32 permitS
) external;
/**
* @notice 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 The 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);
/**
* @notice Allows users to borrow a specific `amount` of the reserve underlying asset, provided that the borrower
* already supplied 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 The 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 The 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 interestRateMode The interest rate mode at of the debt the user wants to repay: 1 for Stable, 2 for Variable
* @param onBehalfOf The 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 interestRateMode,
address onBehalfOf
) external returns (uint256);
/**
* @notice Repay with transfer approval of asset to be repaid done via permit function
* see: https://eips.ethereum.org/EIPS/eip-2612 and https://eips.ethereum.org/EIPS/eip-713
* @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 interestRateMode 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
* @param deadline The deadline timestamp that the permit is valid
* @param permitV The V parameter of ERC712 permit sig
* @param permitR The R parameter of ERC712 permit sig
* @param permitS The S parameter of ERC712 permit sig
* @return The final amount repaid
*/
function repayWithPermit(
address asset,
uint256 amount,
uint256 interestRateMode,
address onBehalfOf,
uint256 deadline,
uint8 permitV,
bytes32 permitR,
bytes32 permitS
) external returns (uint256);
/**
* @notice Repays a borrowed `amount` on a specific reserve using the reserve aTokens, burning the
* equivalent debt tokens
* - E.g. User repays 100 USDC using 100 aUSDC, burning 100 variable/stable debt tokens
* @dev Passing uint256.max as amount will clean up any residual aToken dust balance, if the user aToken
* balance is not enough to cover the whole debt
* @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 interestRateMode The interest rate mode at of the debt the user wants to repay: 1 for Stable, 2 for Variable
* @return The final amount repaid
*/
function repayWithATokens(
address asset,
uint256 amount,
uint256 interestRateMode
) external returns (uint256);
/**
* @notice Allows a borrower to swap his debt between stable and variable mode, or vice versa
* @param asset The address of the underlying asset borrowed
* @param interestRateMode The current interest rate mode of the position being swapped: 1 for Stable, 2 for Variable
*/
function swapBorrowRateMode(
address asset,
uint256 interestRateMode
) external;
/**
* @notice 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 supply APY is below REBALANCE_UP_THRESHOLD * maxVariableBorrowRate, which means that too
* much has been borrowed at a stable rate and suppliers 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;
/**
* @notice Allows suppliers to enable/disable a specific supplied asset as collateral
* @param asset The address of the underlying asset supplied
* @param useAsCollateral True if the user wants to use the supply as collateral, false otherwise
*/
function setUserUseReserveAsCollateral(
address asset,
bool useAsCollateral
) external;
/**
* @notice 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;
/**
* @notice Allows smartcontracts to access the liquidity of the pool within one transaction,
* as long as the amount taken plus a fee is returned.
* @dev IMPORTANT There are security concerns for developers of flashloan receiver contracts that must be kept
* into consideration. For further details please visit https://docs.aave.com/developers/
* @param receiverAddress The address of the contract receiving the funds, implementing IFlashLoanReceiver interface
* @param assets The addresses of the assets being flash-borrowed
* @param amounts The amounts of the assets being flash-borrowed
* @param interestRateModes 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 The 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 interestRateModes,
address onBehalfOf,
bytes calldata params,
uint16 referralCode
) external;
/**
* @notice Allows smartcontracts to access the liquidity of the pool within one transaction,
* as long as the amount taken plus a fee is returned.
* @dev IMPORTANT There are security concerns for developers of flashloan receiver contracts that must be kept
* into consideration. For further details please visit https://docs.aave.com/developers/
* @param receiverAddress The address of the contract receiving the funds, implementing IFlashLoanSimpleReceiver interface
* @param asset The address of the asset being flash-borrowed
* @param amount The amount of the asset being flash-borrowed
* @param params Variadic packed params to pass to the receiver as extra information
* @param referralCode The 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 flashLoanSimple(
address receiverAddress,
address asset,
uint256 amount,
bytes calldata params,
uint16 referralCode
) external;
/**
* @notice Returns the user account data across all the reserves
* @param user The address of the user
* @return totalCollateralBase The total collateral of the user in the base currency used by the price feed
* @return totalDebtBase The total debt of the user in the base currency used by the price feed
* @return availableBorrowsBase The borrowing power left of the user in the base currency used by the price feed
* @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 totalCollateralBase,
uint256 totalDebtBase,
uint256 availableBorrowsBase,
uint256 currentLiquidationThreshold,
uint256 ltv,
uint256 healthFactor
);
/**
* @notice Initializes a reserve, activating it, assigning an aToken and debt tokens and an
* interest rate strategy
* @dev Only callable by the PoolConfigurator contract
* @param asset The address of the underlying asset of the reserve
* @param aTokenAddress The address of the aToken that will be assigned to the reserve
* @param stableDebtAddress The address of the StableDebtToken that will be assigned to the reserve
* @param variableDebtAddress The address of the VariableDebtToken that will be assigned to the reserve
* @param interestRateStrategyAddress The address of the interest rate strategy contract
*/
function initReserve(
address asset,
address aTokenAddress,
address stableDebtAddress,
address variableDebtAddress,
address interestRateStrategyAddress
) external;
/**
* @notice Drop a reserve
* @dev Only callable by the PoolConfigurator contract
* @param asset The address of the underlying asset of the reserve
*/
function dropReserve(address asset) external;
/**
* @notice Updates the address of the interest rate strategy contract
* @dev Only callable by the PoolConfigurator contract
* @param asset The address of the underlying asset of the reserve
* @param rateStrategyAddress The address of the interest rate strategy contract
*/
function setReserveInterestRateStrategyAddress(
address asset,
address rateStrategyAddress
) external;
/**
* @notice Sets the configuration bitmap of the reserve as a whole
* @dev Only callable by the PoolConfigurator contract
* @param asset The address of the underlying asset of the reserve
* @param configuration The new configuration bitmap
*/
function setConfiguration(
address asset,
DataTypes.ReserveConfigurationMap calldata configuration
) external;
/**
* @notice 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);
/**
* @notice 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);
/**
* @notice Returns the 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);
/**
* @notice Returns the normalized variable debt per unit of asset
* @dev WARNING: This function is intended to be used primarily by the protocol itself to get a
* "dynamic" variable index based on time, current stored index and virtual rate at the current
* moment (approx. a borrower would get if opening a position). This means that is always used in
* combination with variable debt supply/balances.
* If using this function externally, consider that is possible to have an increasing normalized
* variable debt that is not equivalent to how the variable debt index would be updated in storage
* (e.g. only updates with non-zero variable debt supply)
* @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);
/**
* @notice Returns the state and configuration of the reserve
* @param asset The address of the underlying asset of the reserve
* @return The state and configuration data of the reserve
*/
function getReserveData(
address asset
) external view returns (DataTypes.ReserveData memory);
/**
* @notice Validates and finalizes an aToken transfer
* @dev Only callable by the overlying aToken of the `asset`
* @param asset The address of the underlying asset of the aToken
* @param from The user from which the aTokens are transferred
* @param to The user receiving the aTokens
* @param amount The amount being transferred/withdrawn
* @param balanceFromBefore The aToken balance of the `from` user before the transfer
* @param balanceToBefore The aToken balance of the `to` user before the transfer
*/
function finalizeTransfer(
address asset,
address from,
address to,
uint256 amount,
uint256 balanceFromBefore,
uint256 balanceToBefore
) external;
/**
* @notice Returns the list of the underlying assets of all the initialized reserves
* @dev It does not include dropped reserves
* @return The addresses of the underlying assets of the initialized reserves
*/
function getReservesList() external view returns (address[] memory);
/**
* @notice Returns the address of the underlying asset of a reserve by the reserve id as stored in the DataTypes.ReserveData struct
* @param id The id of the reserve as stored in the DataTypes.ReserveData struct
* @return The address of the reserve associated with id
*/
function getReserveAddressById(uint16 id) external view returns (address);
/**
* @notice Returns the PoolAddressesProvider connected to this contract
* @return The address of the PoolAddressesProvider
*/
function ADDRESSES_PROVIDER()
external
view
returns (IPoolAddressesProvider);
/**
* @notice Updates the protocol fee on the bridging
* @param bridgeProtocolFee The part of the premium sent to the protocol treasury
*/
function updateBridgeProtocolFee(uint256 bridgeProtocolFee) external;
/**
* @notice Updates flash loan premiums. Flash loan premium consists of two parts:
* - A part is sent to aToken holders as extra, one time accumulated interest
* - A part is collected by the protocol treasury
* @dev The total premium is calculated on the total borrowed amount
* @dev The premium to protocol is calculated on the total premium, being a percentage of `flashLoanPremiumTotal`
* @dev Only callable by the PoolConfigurator contract
* @param flashLoanPremiumTotal The total premium, expressed in bps
* @param flashLoanPremiumToProtocol The part of the premium sent to the protocol treasury, expressed in bps
*/
function updateFlashloanPremiums(
uint128 flashLoanPremiumTotal,
uint128 flashLoanPremiumToProtocol
) external;
/**
* @notice Configures a new category for the eMode.
* @dev In eMode, the protocol allows very high borrowing power to borrow assets of the same category.
* The category 0 is reserved as it's the default for volatile assets
* @param id The id of the category
* @param config The configuration of the category
*/
function configureEModeCategory(
uint8 id,
DataTypes.EModeCategory memory config
) external;
/**
* @notice Returns the data of an eMode category
* @param id The id of the category
* @return The configuration data of the category
*/
function getEModeCategoryData(
uint8 id
) external view returns (DataTypes.EModeCategory memory);
/**
* @notice Allows a user to use the protocol in eMode
* @param categoryId The id of the category
*/
function setUserEMode(uint8 categoryId) external;
/**
* @notice Returns the eMode the user is using
* @param user The address of the user
* @return The eMode id
*/
function getUserEMode(address user) external view returns (uint256);
/**
* @notice Resets the isolation mode total debt of the given asset to zero
* @dev It requires the given asset has zero debt ceiling
* @param asset The address of the underlying asset to reset the isolationModeTotalDebt
*/
function resetIsolationModeTotalDebt(address asset) external;
/**
* @notice Returns the percentage of available liquidity that can be borrowed at once at stable rate
* @return The percentage of available liquidity to borrow, expressed in bps
*/
function MAX_STABLE_RATE_BORROW_SIZE_PERCENT()
external
view
returns (uint256);
/**
* @notice Returns the total fee on flash loans
* @return The total fee on flashloans
*/
function FLASHLOAN_PREMIUM_TOTAL() external view returns (uint128);
/**
* @notice Returns the part of the bridge fees sent to protocol
* @return The bridge fee sent to the protocol treasury
*/
function BRIDGE_PROTOCOL_FEE() external view returns (uint256);
/**
* @notice Returns the part of the flashloan fees sent to protocol
* @return The flashloan fee sent to the protocol treasury
*/
function FLASHLOAN_PREMIUM_TO_PROTOCOL() external view returns (uint128);
/**
* @notice Returns the maximum number of reserves supported to be listed in this Pool
* @return The maximum number of reserves supported
*/
function MAX_NUMBER_RESERVES() external view returns (uint16);
/**
* @notice Mints the assets accrued through the reserve factor to the treasury in the form of aTokens
* @param assets The list of reserves for which the minting needs to be executed
*/
function mintToTreasury(address[] calldata assets) external;
/**
* @notice Rescue and transfer tokens locked in this contract
* @param token The address of the token
* @param to The address of the recipient
* @param amount The amount of token to transfer
*/
function rescueTokens(address token, address to, uint256 amount) external;
/**
* @notice Supplies an `amount` of underlying asset into the reserve, receiving in return overlying aTokens.
* - E.g. User supplies 100 USDC and gets in return 100 aUSDC
* @dev Deprecated: Use the `supply` function instead
* @param asset The address of the underlying asset to supply
* @param amount The amount to be supplied
* @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;
}// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
/**
* @title IPoolAddressesProvider
* @author Aave
* @notice Defines the basic interface for a Pool Addresses Provider.
*/
interface IPoolAddressesProvider {
/**
* @dev Emitted when the market identifier is updated.
* @param oldMarketId The old id of the market
* @param newMarketId The new id of the market
*/
event MarketIdSet(string indexed oldMarketId, string indexed newMarketId);
/**
* @dev Emitted when the pool is updated.
* @param oldAddress The old address of the Pool
* @param newAddress The new address of the Pool
*/
event PoolUpdated(address indexed oldAddress, address indexed newAddress);
/**
* @dev Emitted when the pool configurator is updated.
* @param oldAddress The old address of the PoolConfigurator
* @param newAddress The new address of the PoolConfigurator
*/
event PoolConfiguratorUpdated(
address indexed oldAddress,
address indexed newAddress
);
/**
* @dev Emitted when the price oracle is updated.
* @param oldAddress The old address of the PriceOracle
* @param newAddress The new address of the PriceOracle
*/
event PriceOracleUpdated(
address indexed oldAddress,
address indexed newAddress
);
/**
* @dev Emitted when the ACL manager is updated.
* @param oldAddress The old address of the ACLManager
* @param newAddress The new address of the ACLManager
*/
event ACLManagerUpdated(
address indexed oldAddress,
address indexed newAddress
);
/**
* @dev Emitted when the ACL admin is updated.
* @param oldAddress The old address of the ACLAdmin
* @param newAddress The new address of the ACLAdmin
*/
event ACLAdminUpdated(
address indexed oldAddress,
address indexed newAddress
);
/**
* @dev Emitted when the price oracle sentinel is updated.
* @param oldAddress The old address of the PriceOracleSentinel
* @param newAddress The new address of the PriceOracleSentinel
*/
event PriceOracleSentinelUpdated(
address indexed oldAddress,
address indexed newAddress
);
/**
* @dev Emitted when the pool data provider is updated.
* @param oldAddress The old address of the PoolDataProvider
* @param newAddress The new address of the PoolDataProvider
*/
event PoolDataProviderUpdated(
address indexed oldAddress,
address indexed newAddress
);
/**
* @dev Emitted when a new proxy is created.
* @param id The identifier of the proxy
* @param proxyAddress The address of the created proxy contract
* @param implementationAddress The address of the implementation contract
*/
event ProxyCreated(
bytes32 indexed id,
address indexed proxyAddress,
address indexed implementationAddress
);
/**
* @dev Emitted when a new non-proxied contract address is registered.
* @param id The identifier of the contract
* @param oldAddress The address of the old contract
* @param newAddress The address of the new contract
*/
event AddressSet(
bytes32 indexed id,
address indexed oldAddress,
address indexed newAddress
);
/**
* @dev Emitted when the implementation of the proxy registered with id is updated
* @param id The identifier of the contract
* @param proxyAddress The address of the proxy contract
* @param oldImplementationAddress The address of the old implementation contract
* @param newImplementationAddress The address of the new implementation contract
*/
event AddressSetAsProxy(
bytes32 indexed id,
address indexed proxyAddress,
address oldImplementationAddress,
address indexed newImplementationAddress
);
/**
* @notice Returns the id of the Aave market to which this contract points to.
* @return The market id
*/
function getMarketId() external view returns (string memory);
/**
* @notice Associates an id with a specific PoolAddressesProvider.
* @dev This can be used to create an onchain registry of PoolAddressesProviders to
* identify and validate multiple Aave markets.
* @param newMarketId The market id
*/
function setMarketId(string calldata newMarketId) external;
/**
* @notice Returns an address by its identifier.
* @dev The returned address might be an EOA or a contract, potentially proxied
* @dev It returns ZERO if there is no registered address with the given id
* @param id The id
* @return The address of the registered for the specified id
*/
function getAddressFromID(bytes32 id) external view returns (address);
/**
* @notice General function to update the implementation of a proxy registered with
* certain `id`. If there is no proxy registered, it will instantiate one and
* set as implementation the `newImplementationAddress`.
* @dev IMPORTANT Use this function carefully, only for ids that don't have an explicit
* setter function, in order to avoid unexpected consequences
* @param id The id
* @param newImplementationAddress The address of the new implementation
*/
function setAddressAsProxy(
bytes32 id,
address newImplementationAddress
) external;
/**
* @notice Sets an address for an id replacing the address saved in the addresses map.
* @dev IMPORTANT Use this function carefully, as it will do a hard replacement
* @param id The id
* @param newAddress The address to set
*/
function setAddress(bytes32 id, address newAddress) external;
/**
* @notice Returns the address of the Pool proxy.
* @return The Pool proxy address
*/
function getPool() external view returns (address);
/**
* @notice Updates the implementation of the Pool, or creates a proxy
* setting the new `pool` implementation when the function is called for the first time.
* @param newPoolImpl The new Pool implementation
*/
function setPoolImpl(address newPoolImpl) external;
/**
* @notice Returns the address of the PoolConfigurator proxy.
* @return The PoolConfigurator proxy address
*/
function getPoolConfigurator() external view returns (address);
/**
* @notice Updates the implementation of the PoolConfigurator, or creates a proxy
* setting the new `PoolConfigurator` implementation when the function is called for the first time.
* @param newPoolConfiguratorImpl The new PoolConfigurator implementation
*/
function setPoolConfiguratorImpl(address newPoolConfiguratorImpl) external;
/**
* @notice Returns the address of the price oracle.
* @return The address of the PriceOracle
*/
function getPriceOracle() external view returns (address);
/**
* @notice Updates the address of the price oracle.
* @param newPriceOracle The address of the new PriceOracle
*/
function setPriceOracle(address newPriceOracle) external;
/**
* @notice Returns the address of the ACL manager.
* @return The address of the ACLManager
*/
function getACLManager() external view returns (address);
/**
* @notice Updates the address of the ACL manager.
* @param newAclManager The address of the new ACLManager
*/
function setACLManager(address newAclManager) external;
/**
* @notice Returns the address of the ACL admin.
* @return The address of the ACL admin
*/
function getACLAdmin() external view returns (address);
/**
* @notice Updates the address of the ACL admin.
* @param newAclAdmin The address of the new ACL admin
*/
function setACLAdmin(address newAclAdmin) external;
/**
* @notice Returns the address of the price oracle sentinel.
* @return The address of the PriceOracleSentinel
*/
function getPriceOracleSentinel() external view returns (address);
/**
* @notice Updates the address of the price oracle sentinel.
* @param newPriceOracleSentinel The address of the new PriceOracleSentinel
*/
function setPriceOracleSentinel(address newPriceOracleSentinel) external;
/**
* @notice Returns the address of the data provider.
* @return The address of the DataProvider
*/
function getPoolDataProvider() external view returns (address);
/**
* @notice Updates the address of the data provider.
* @param newDataProvider The address of the new DataProvider
*/
function setPoolDataProvider(address newDataProvider) external;
}// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
/**
* @title IPriceOracleGetter
* @author Aave
* @notice Interface for the Aave price oracle.
*/
interface IPriceOracleGetter {
/**
* @notice Returns the base currency address
* @dev Address 0x0 is reserved for USD as base currency.
* @return Returns the base currency address.
*/
function BASE_CURRENCY() external view returns (address);
/**
* @notice Returns the base currency unit
* @dev 1 ether for ETH, 1e8 for USD.
* @return Returns the base currency unit.
*/
function BASE_CURRENCY_UNIT() external view returns (uint256);
/**
* @notice Returns the asset price in the base currency
* @param asset The address of the asset
* @return The price of the asset
*/
function getAssetPrice(address asset) external view returns (uint256);
}// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
import {IPoolAddressesProvider} from "./IPoolAddressesProvider.sol";
/**
* @title IPriceOracleSentinel
* @author Aave
* @notice Defines the basic interface for the PriceOracleSentinel
*/
interface IPriceOracleSentinel {
/**
* @dev Emitted after the sequencer oracle is updated
* @param newSequencerOracle The new sequencer oracle
*/
event SequencerOracleUpdated(address newSequencerOracle);
/**
* @dev Emitted after the grace period is updated
* @param newGracePeriod The new grace period value
*/
event GracePeriodUpdated(uint256 newGracePeriod);
/**
* @notice Returns the PoolAddressesProvider
* @return The address of the PoolAddressesProvider contract
*/
function ADDRESSES_PROVIDER()
external
view
returns (IPoolAddressesProvider);
/**
* @notice Returns true if the `borrow` operation is allowed.
* @dev Operation not allowed when PriceOracle is down or grace period not passed.
* @return True if the `borrow` operation is allowed, false otherwise.
*/
function isBorrowAllowed() external view returns (bool);
/**
* @notice Returns true if the `liquidation` operation is allowed.
* @dev Operation not allowed when PriceOracle is down or grace period not passed.
* @return True if the `liquidation` operation is allowed, false otherwise.
*/
function isLiquidationAllowed() external view returns (bool);
/**
* @notice Updates the address of the sequencer oracle
* @param newSequencerOracle The address of the new Sequencer Oracle to use
*/
function setSequencerOracle(address newSequencerOracle) external;
/**
* @notice Updates the duration of the grace period
* @param newGracePeriod The value of the new grace period duration
*/
function setGracePeriod(uint256 newGracePeriod) external;
/**
* @notice Returns the SequencerOracle
* @return The address of the sequencer oracle contract
*/
function getSequencerOracle() external view returns (address);
/**
* @notice Returns the grace period
* @return The duration of the grace period
*/
function getGracePeriod() external view returns (uint256);
}// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
import {DataTypes} from "../protocol/libraries/types/DataTypes.sol";
/**
* @title IReserveInterestRateStrategy
* @author Aave
* @notice Interface for the calculation of the interest rates
*/
interface IReserveInterestRateStrategy {
/**
* @notice Calculates the interest rates depending on the reserve's state and configurations
* @param params The parameters needed to calculate interest rates
* @return liquidityRate The liquidity rate expressed in rays
* @return stableBorrowRate The stable borrow rate expressed in rays
* @return variableBorrowRate The variable borrow rate expressed in rays
*/
function calculateInterestRates(
DataTypes.CalculateInterestRatesParams memory params
) external view returns (uint256, uint256, uint256);
}// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
/**
* @title IScaledBalanceToken
* @author Aave
* @notice Defines the basic interface for a scaled-balance token.
*/
interface IScaledBalanceToken {
/**
* @dev Emitted after the mint action
* @param caller The address performing the mint
* @param onBehalfOf The address of the user that will receive the minted tokens
* @param value The scaled-up amount being minted (based on user entered amount and balance increase from interest)
* @param balanceIncrease The increase in scaled-up balance since the last action of 'onBehalfOf'
* @param index The next liquidity index of the reserve
*/
event Mint(
address indexed caller,
address indexed onBehalfOf,
uint256 value,
uint256 balanceIncrease,
uint256 index
);
/**
* @dev Emitted after the burn action
* @dev If the burn function does not involve a transfer of the underlying asset, the target defaults to zero address
* @param from The address from which the tokens will be burned
* @param target The address that will receive the underlying, if any
* @param value The scaled-up amount being burned (user entered amount - balance increase from interest)
* @param balanceIncrease The increase in scaled-up balance since the last action of 'from'
* @param index The next liquidity index of the reserve
*/
event Burn(
address indexed from,
address indexed target,
uint256 value,
uint256 balanceIncrease,
uint256 index
);
/**
* @notice Returns the scaled balance of the user.
* @dev The scaled balance is the sum of all the updated stored balance divided by the reserve's liquidity index
* at the moment of the update
* @param user The user whose balance is calculated
* @return The scaled balance of the user
*/
function scaledBalanceOf(address user) external view returns (uint256);
/**
* @notice Returns the scaled balance of the user and the scaled total supply.
* @param user The address of the user
* @return The scaled balance of the user
* @return The scaled total supply
*/
function getScaledUserBalanceAndSupply(
address user
) external view returns (uint256, uint256);
/**
* @notice Returns the scaled total supply of the scaled balance token. Represents sum(debt/index)
* @return The scaled total supply
*/
function scaledTotalSupply() external view returns (uint256);
/**
* @notice Returns last index interest was accrued to the user's balance
* @param user The address of the user
* @return The last index interest was accrued to the user's balance, expressed in ray
*/
function getPreviousIndex(address user) external view returns (uint256);
}// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
import {IInitializableDebtToken} from "./IInitializableDebtToken.sol";
/**
* @title IStableDebtToken
* @author Aave
* @notice Defines the interface for the stable debt token
* @dev It does not inherit from IERC20 to save in code size
*/
interface IStableDebtToken is IInitializableDebtToken {
/**
* @dev Emitted when new stable debt is minted
* @param user The address of the user who triggered the minting
* @param onBehalfOf The recipient of stable debt tokens
* @param amount The amount minted (user entered amount + balance increase from interest)
* @param currentBalance The balance of the user based on the previous balance and balance increase from interest
* @param balanceIncrease The increase in balance since the last action of the user 'onBehalfOf'
* @param newRate The rate of the debt after the minting
* @param avgStableRate The next average stable rate after the minting
* @param newTotalSupply The next total supply of the stable debt token after the action
*/
event Mint(
address indexed user,
address indexed onBehalfOf,
uint256 amount,
uint256 currentBalance,
uint256 balanceIncrease,
uint256 newRate,
uint256 avgStableRate,
uint256 newTotalSupply
);
/**
* @dev Emitted when new stable debt is burned
* @param from The address from which the debt will be burned
* @param amount The amount being burned (user entered amount - balance increase from interest)
* @param currentBalance The balance of the user based on the previous balance and balance increase from interest
* @param balanceIncrease The increase in balance since the last action of 'from'
* @param avgStableRate The next average stable rate after the burning
* @param newTotalSupply The next total supply of the stable debt token after the action
*/
event Burn(
address indexed from,
uint256 amount,
uint256 currentBalance,
uint256 balanceIncrease,
uint256 avgStableRate,
uint256 newTotalSupply
);
/**
* @notice Mints debt token to the `onBehalfOf` address.
* @dev The resulting rate is the weighted average between the rate of the new debt
* and the rate of the previous debt
* @param user The address receiving the borrowed underlying, being the delegatee in case
* of credit delegate, or same as `onBehalfOf` otherwise
* @param onBehalfOf The address receiving the debt tokens
* @param amount The amount of debt tokens to mint
* @param rate The rate of the debt being minted
* @return True if it is the first borrow, false otherwise
* @return The total stable debt
* @return The average stable borrow rate
*/
function mint(
address user,
address onBehalfOf,
uint256 amount,
uint256 rate
) external returns (bool, uint256, uint256);
/**
* @notice Burns debt of `user`
* @dev The resulting rate is the weighted average between the rate of the new debt
* and the rate of the previous debt
* @dev In some instances, a burn transaction will emit a mint event
* if the amount to burn is less than the interest the user earned
* @param from The address from which the debt will be burned
* @param amount The amount of debt tokens getting burned
* @return The total stable debt
* @return The average stable borrow rate
*/
function burn(
address from,
uint256 amount
) external returns (uint256, uint256);
/**
* @notice Returns the average rate of all the stable rate loans.
* @return The average stable rate
*/
function getAverageStableRate() external view returns (uint256);
/**
* @notice Returns the stable rate of the user debt
* @param user The address of the user
* @return The stable rate of the user
*/
function getUserStableRate(address user) external view returns (uint256);
/**
* @notice Returns the timestamp of the last update of the user
* @param user The address of the user
* @return The timestamp
*/
function getUserLastUpdated(address user) external view returns (uint40);
/**
* @notice Returns the principal, the total supply, the average stable rate and the timestamp for the last update
* @return The principal
* @return The total supply
* @return The average stable rate
* @return The timestamp of the last update
*/
function getSupplyData()
external
view
returns (uint256, uint256, uint256, uint40);
/**
* @notice Returns the timestamp of the last update of the total supply
* @return The timestamp
*/
function getTotalSupplyLastUpdated() external view returns (uint40);
/**
* @notice Returns the total supply and the average stable rate
* @return The total supply
* @return The average rate
*/
function getTotalSupplyAndAvgRate()
external
view
returns (uint256, uint256);
/**
* @notice Returns the principal debt balance of the user
* @return The debt balance of the user since the last burn/mint action
*/
function principalBalanceOf(address user) external view returns (uint256);
/**
* @notice Returns the address of the underlying asset of this stableDebtToken (E.g. WETH for stableDebtWETH)
* @return The address of the underlying asset
*/
function UNDERLYING_ASSET_ADDRESS() external view returns (address);
}// SPDX-License-Identifier: AGPL-3.0
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
import {IScaledBalanceToken} from "./IScaledBalanceToken.sol";
import {IInitializableDebtToken} from "./IInitializableDebtToken.sol";
/**
* @title IVariableDebtToken
* @author Aave
* @notice Defines the basic interface for a variable debt token.
*/
interface IVariableDebtToken is IScaledBalanceToken, IInitializableDebtToken {
/**
* @notice Mints debt token to the `onBehalfOf` address
* @param user The address receiving the borrowed underlying, being the delegatee in case
* of credit delegate, or same as `onBehalfOf` otherwise
* @param onBehalfOf The address receiving the debt tokens
* @param amount The amount of debt being minted
* @param index The variable debt index of the reserve
* @return True if the previous balance of the user is 0, false otherwise
* @return The scaled total debt of the reserve
*/
function mint(
address user,
address onBehalfOf,
uint256 amount,
uint256 index
) external returns (bool, uint256);
/**
* @notice Burns user variable debt
* @dev In some instances, a burn transaction will emit a mint event
* if the amount to burn is less than the interest that the user accrued
* @param from The address from which the debt will be burned
* @param amount The amount getting burned
* @param index The variable debt index of the reserve
* @return The scaled total debt of the reserve
*/
function burn(
address from,
uint256 amount,
uint256 index
) external returns (uint256);
/**
* @notice Returns the address of the underlying asset of this debtToken (E.g. WETH for variableDebtWETH)
* @return The address of the underlying asset
*/
function UNDERLYING_ASSET_ADDRESS() external view returns (address);
}// SPDX-License-Identifier: BUSL-1.1
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
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 internal constant LTV_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000; // prettier-ignore
uint256 internal constant LIQUIDATION_THRESHOLD_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000FFFF; // prettier-ignore
uint256 internal constant LIQUIDATION_BONUS_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000FFFFFFFF; // prettier-ignore
uint256 internal constant DECIMALS_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00FFFFFFFFFFFF; // prettier-ignore
uint256 internal constant ACTIVE_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant FROZEN_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFDFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant BORROWING_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFBFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant STABLE_BORROWING_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant PAUSED_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant BORROWABLE_IN_ISOLATION_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFDFFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant SILOED_BORROWING_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFBFFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant FLASHLOAN_ENABLED_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant RESERVE_FACTOR_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000FFFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant BORROW_CAP_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000FFFFFFFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant SUPPLY_CAP_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFF000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant LIQUIDATION_PROTOCOL_FEE_MASK = 0xFFFFFFFFFFFFFFFFFFFFFF0000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant EMODE_CATEGORY_MASK = 0xFFFFFFFFFFFFFFFFFFFF00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant UNBACKED_MINT_CAP_MASK = 0xFFFFFFFFFFF000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant DEBT_CEILING_MASK = 0xF0000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF; // prettier-ignore
/// @dev For the LTV, the start bit is 0 (up to 15), hence no bitshifting is needed
uint256 internal constant LIQUIDATION_THRESHOLD_START_BIT_POSITION = 16;
uint256 internal constant LIQUIDATION_BONUS_START_BIT_POSITION = 32;
uint256 internal constant RESERVE_DECIMALS_START_BIT_POSITION = 48;
uint256 internal constant IS_ACTIVE_START_BIT_POSITION = 56;
uint256 internal constant IS_FROZEN_START_BIT_POSITION = 57;
uint256 internal constant BORROWING_ENABLED_START_BIT_POSITION = 58;
uint256 internal constant STABLE_BORROWING_ENABLED_START_BIT_POSITION = 59;
uint256 internal constant IS_PAUSED_START_BIT_POSITION = 60;
uint256 internal constant BORROWABLE_IN_ISOLATION_START_BIT_POSITION = 61;
uint256 internal constant SILOED_BORROWING_START_BIT_POSITION = 62;
uint256 internal constant FLASHLOAN_ENABLED_START_BIT_POSITION = 63;
uint256 internal constant RESERVE_FACTOR_START_BIT_POSITION = 64;
uint256 internal constant BORROW_CAP_START_BIT_POSITION = 80;
uint256 internal constant SUPPLY_CAP_START_BIT_POSITION = 116;
uint256 internal constant LIQUIDATION_PROTOCOL_FEE_START_BIT_POSITION = 152;
uint256 internal constant EMODE_CATEGORY_START_BIT_POSITION = 168;
uint256 internal constant UNBACKED_MINT_CAP_START_BIT_POSITION = 176;
uint256 internal constant DEBT_CEILING_START_BIT_POSITION = 212;
uint256 internal constant MAX_VALID_LTV = 65535;
uint256 internal constant MAX_VALID_LIQUIDATION_THRESHOLD = 65535;
uint256 internal constant MAX_VALID_LIQUIDATION_BONUS = 65535;
uint256 internal constant MAX_VALID_DECIMALS = 255;
uint256 internal constant MAX_VALID_RESERVE_FACTOR = 65535;
uint256 internal constant MAX_VALID_BORROW_CAP = 68719476735;
uint256 internal constant MAX_VALID_SUPPLY_CAP = 68719476735;
uint256 internal constant MAX_VALID_LIQUIDATION_PROTOCOL_FEE = 65535;
uint256 internal constant MAX_VALID_EMODE_CATEGORY = 255;
uint256 internal constant MAX_VALID_UNBACKED_MINT_CAP = 68719476735;
uint256 internal constant MAX_VALID_DEBT_CEILING = 1099511627775;
uint256 public constant DEBT_CEILING_DECIMALS = 2;
uint16 public constant MAX_RESERVES_COUNT = 128;
/**
* @notice 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.INVALID_LTV);
self.data = (self.data & LTV_MASK) | ltv;
}
/**
* @notice Gets the Loan to Value of the reserve
* @param self The reserve configuration
* @return The loan to value
*/
function getLtv(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return self.data & ~LTV_MASK;
}
/**
* @notice 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.INVALID_LIQ_THRESHOLD
);
self.data =
(self.data & LIQUIDATION_THRESHOLD_MASK) |
(threshold << LIQUIDATION_THRESHOLD_START_BIT_POSITION);
}
/**
* @notice Gets the liquidation threshold of the reserve
* @param self The reserve configuration
* @return The liquidation threshold
*/
function getLiquidationThreshold(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return
(self.data & ~LIQUIDATION_THRESHOLD_MASK) >>
LIQUIDATION_THRESHOLD_START_BIT_POSITION;
}
/**
* @notice 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.INVALID_LIQ_BONUS);
self.data =
(self.data & LIQUIDATION_BONUS_MASK) |
(bonus << LIQUIDATION_BONUS_START_BIT_POSITION);
}
/**
* @notice Gets the liquidation bonus of the reserve
* @param self The reserve configuration
* @return The liquidation bonus
*/
function getLiquidationBonus(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return
(self.data & ~LIQUIDATION_BONUS_MASK) >>
LIQUIDATION_BONUS_START_BIT_POSITION;
}
/**
* @notice 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.INVALID_DECIMALS);
self.data =
(self.data & DECIMALS_MASK) |
(decimals << RESERVE_DECIMALS_START_BIT_POSITION);
}
/**
* @notice 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 memory self
) internal pure returns (uint256) {
return
(self.data & ~DECIMALS_MASK) >> RESERVE_DECIMALS_START_BIT_POSITION;
}
/**
* @notice 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);
}
/**
* @notice Gets the active state of the reserve
* @param self The reserve configuration
* @return The active state
*/
function getActive(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (bool) {
return (self.data & ~ACTIVE_MASK) != 0;
}
/**
* @notice 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);
}
/**
* @notice Gets the frozen state of the reserve
* @param self The reserve configuration
* @return The frozen state
*/
function getFrozen(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (bool) {
return (self.data & ~FROZEN_MASK) != 0;
}
/**
* @notice Sets the paused state of the reserve
* @param self The reserve configuration
* @param paused The paused state
*/
function setPaused(
DataTypes.ReserveConfigurationMap memory self,
bool paused
) internal pure {
self.data =
(self.data & PAUSED_MASK) |
(uint256(paused ? 1 : 0) << IS_PAUSED_START_BIT_POSITION);
}
/**
* @notice Gets the paused state of the reserve
* @param self The reserve configuration
* @return The paused state
*/
function getPaused(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (bool) {
return (self.data & ~PAUSED_MASK) != 0;
}
/**
* @notice Sets the borrowable in isolation flag for the reserve.
* @dev When this flag is set to true, the asset will be borrowable against isolated collaterals and the borrowed
* amount will be accumulated in the isolated collateral's total debt exposure.
* @dev Only assets of the same family (eg USD stablecoins) should be borrowable in isolation mode to keep
* consistency in the debt ceiling calculations.
* @param self The reserve configuration
* @param borrowable True if the asset is borrowable
*/
function setBorrowableInIsolation(
DataTypes.ReserveConfigurationMap memory self,
bool borrowable
) internal pure {
self.data =
(self.data & BORROWABLE_IN_ISOLATION_MASK) |
(uint256(borrowable ? 1 : 0) <<
BORROWABLE_IN_ISOLATION_START_BIT_POSITION);
}
/**
* @notice Gets the borrowable in isolation flag for the reserve.
* @dev If the returned flag is true, the asset is borrowable against isolated collateral. Assets borrowed with
* isolated collateral is accounted for in the isolated collateral's total debt exposure.
* @dev Only assets of the same family (eg USD stablecoins) should be borrowable in isolation mode to keep
* consistency in the debt ceiling calculations.
* @param self The reserve configuration
* @return The borrowable in isolation flag
*/
function getBorrowableInIsolation(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (bool) {
return (self.data & ~BORROWABLE_IN_ISOLATION_MASK) != 0;
}
/**
* @notice Sets the siloed borrowing flag for the reserve.
* @dev When this flag is set to true, users borrowing this asset will not be allowed to borrow any other asset.
* @param self The reserve configuration
* @param siloed True if the asset is siloed
*/
function setSiloedBorrowing(
DataTypes.ReserveConfigurationMap memory self,
bool siloed
) internal pure {
self.data =
(self.data & SILOED_BORROWING_MASK) |
(uint256(siloed ? 1 : 0) << SILOED_BORROWING_START_BIT_POSITION);
}
/**
* @notice Gets the siloed borrowing flag for the reserve.
* @dev When this flag is set to true, users borrowing this asset will not be allowed to borrow any other asset.
* @param self The reserve configuration
* @return The siloed borrowing flag
*/
function getSiloedBorrowing(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (bool) {
return (self.data & ~SILOED_BORROWING_MASK) != 0;
}
/**
* @notice 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);
}
/**
* @notice Gets the borrowing state of the reserve
* @param self The reserve configuration
* @return The borrowing state
*/
function getBorrowingEnabled(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (bool) {
return (self.data & ~BORROWING_MASK) != 0;
}
/**
* @notice 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);
}
/**
* @notice Gets the stable rate borrowing state of the reserve
* @param self The reserve configuration
* @return The stable rate borrowing state
*/
function getStableRateBorrowingEnabled(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (bool) {
return (self.data & ~STABLE_BORROWING_MASK) != 0;
}
/**
* @notice 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.INVALID_RESERVE_FACTOR
);
self.data =
(self.data & RESERVE_FACTOR_MASK) |
(reserveFactor << RESERVE_FACTOR_START_BIT_POSITION);
}
/**
* @notice Gets the reserve factor of the reserve
* @param self The reserve configuration
* @return The reserve factor
*/
function getReserveFactor(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return
(self.data & ~RESERVE_FACTOR_MASK) >>
RESERVE_FACTOR_START_BIT_POSITION;
}
/**
* @notice Sets the borrow cap of the reserve
* @param self The reserve configuration
* @param borrowCap The borrow cap
*/
function setBorrowCap(
DataTypes.ReserveConfigurationMap memory self,
uint256 borrowCap
) internal pure {
require(borrowCap <= MAX_VALID_BORROW_CAP, Errors.INVALID_BORROW_CAP);
self.data =
(self.data & BORROW_CAP_MASK) |
(borrowCap << BORROW_CAP_START_BIT_POSITION);
}
/**
* @notice Gets the borrow cap of the reserve
* @param self The reserve configuration
* @return The borrow cap
*/
function getBorrowCap(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return (self.data & ~BORROW_CAP_MASK) >> BORROW_CAP_START_BIT_POSITION;
}
/**
* @notice Sets the supply cap of the reserve
* @param self The reserve configuration
* @param supplyCap The supply cap
*/
function setSupplyCap(
DataTypes.ReserveConfigurationMap memory self,
uint256 supplyCap
) internal pure {
require(supplyCap <= MAX_VALID_SUPPLY_CAP, Errors.INVALID_SUPPLY_CAP);
self.data =
(self.data & SUPPLY_CAP_MASK) |
(supplyCap << SUPPLY_CAP_START_BIT_POSITION);
}
/**
* @notice Gets the supply cap of the reserve
* @param self The reserve configuration
* @return The supply cap
*/
function getSupplyCap(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return (self.data & ~SUPPLY_CAP_MASK) >> SUPPLY_CAP_START_BIT_POSITION;
}
/**
* @notice Sets the debt ceiling in isolation mode for the asset
* @param self The reserve configuration
* @param ceiling The maximum debt ceiling for the asset
*/
function setDebtCeiling(
DataTypes.ReserveConfigurationMap memory self,
uint256 ceiling
) internal pure {
require(ceiling <= MAX_VALID_DEBT_CEILING, Errors.INVALID_DEBT_CEILING);
self.data =
(self.data & DEBT_CEILING_MASK) |
(ceiling << DEBT_CEILING_START_BIT_POSITION);
}
/**
* @notice Gets the debt ceiling for the asset if the asset is in isolation mode
* @param self The reserve configuration
* @return The debt ceiling (0 = isolation mode disabled)
*/
function getDebtCeiling(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return
(self.data & ~DEBT_CEILING_MASK) >> DEBT_CEILING_START_BIT_POSITION;
}
/**
* @notice Sets the liquidation protocol fee of the reserve
* @param self The reserve configuration
* @param liquidationProtocolFee The liquidation protocol fee
*/
function setLiquidationProtocolFee(
DataTypes.ReserveConfigurationMap memory self,
uint256 liquidationProtocolFee
) internal pure {
require(
liquidationProtocolFee <= MAX_VALID_LIQUIDATION_PROTOCOL_FEE,
Errors.INVALID_LIQUIDATION_PROTOCOL_FEE
);
self.data =
(self.data & LIQUIDATION_PROTOCOL_FEE_MASK) |
(liquidationProtocolFee <<
LIQUIDATION_PROTOCOL_FEE_START_BIT_POSITION);
}
/**
* @dev Gets the liquidation protocol fee
* @param self The reserve configuration
* @return The liquidation protocol fee
*/
function getLiquidationProtocolFee(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return
(self.data & ~LIQUIDATION_PROTOCOL_FEE_MASK) >>
LIQUIDATION_PROTOCOL_FEE_START_BIT_POSITION;
}
/**
* @notice Sets the unbacked mint cap of the reserve
* @param self The reserve configuration
* @param unbackedMintCap The unbacked mint cap
*/
function setUnbackedMintCap(
DataTypes.ReserveConfigurationMap memory self,
uint256 unbackedMintCap
) internal pure {
require(
unbackedMintCap <= MAX_VALID_UNBACKED_MINT_CAP,
Errors.INVALID_UNBACKED_MINT_CAP
);
self.data =
(self.data & UNBACKED_MINT_CAP_MASK) |
(unbackedMintCap << UNBACKED_MINT_CAP_START_BIT_POSITION);
}
/**
* @dev Gets the unbacked mint cap of the reserve
* @param self The reserve configuration
* @return The unbacked mint cap
*/
function getUnbackedMintCap(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return
(self.data & ~UNBACKED_MINT_CAP_MASK) >>
UNBACKED_MINT_CAP_START_BIT_POSITION;
}
/**
* @notice Sets the eMode asset category
* @param self The reserve configuration
* @param category The asset category when the user selects the eMode
*/
function setEModeCategory(
DataTypes.ReserveConfigurationMap memory self,
uint256 category
) internal pure {
require(
category <= MAX_VALID_EMODE_CATEGORY,
Errors.INVALID_EMODE_CATEGORY
);
self.data =
(self.data & EMODE_CATEGORY_MASK) |
(category << EMODE_CATEGORY_START_BIT_POSITION);
}
/**
* @dev Gets the eMode asset category
* @param self The reserve configuration
* @return The eMode category for the asset
*/
function getEModeCategory(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return
(self.data & ~EMODE_CATEGORY_MASK) >>
EMODE_CATEGORY_START_BIT_POSITION;
}
/**
* @notice Sets the flashloanable flag for the reserve
* @param self The reserve configuration
* @param flashLoanEnabled True if the asset is flashloanable, false otherwise
*/
function setFlashLoanEnabled(
DataTypes.ReserveConfigurationMap memory self,
bool flashLoanEnabled
) internal pure {
self.data =
(self.data & FLASHLOAN_ENABLED_MASK) |
(uint256(flashLoanEnabled ? 1 : 0) <<
FLASHLOAN_ENABLED_START_BIT_POSITION);
}
/**
* @notice Gets the flashloanable flag for the reserve
* @param self The reserve configuration
* @return The flashloanable flag
*/
function getFlashLoanEnabled(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (bool) {
return (self.data & ~FLASHLOAN_ENABLED_MASK) != 0;
}
/**
* @notice Gets the configuration flags of the reserve
* @param self The reserve configuration
* @return The state flag representing active
* @return The state flag representing frozen
* @return The state flag representing borrowing enabled
* @return The state flag representing stableRateBorrowing enabled
* @return The state flag representing paused
*/
function getFlags(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (bool, 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,
(dataLocal & ~PAUSED_MASK) != 0
);
}
/**
* @notice Gets the configuration parameters of the reserve from storage
* @param self The reserve configuration
* @return The state param representing ltv
* @return The state param representing liquidation threshold
* @return The state param representing liquidation bonus
* @return The state param representing reserve decimals
* @return The state param representing reserve factor
* @return The state param representing eMode category
*/
function getParams(
DataTypes.ReserveConfigurationMap memory self
)
internal
pure
returns (uint256, 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,
(dataLocal & ~EMODE_CATEGORY_MASK) >>
EMODE_CATEGORY_START_BIT_POSITION
);
}
/**
* @notice Gets the caps parameters of the reserve from storage
* @param self The reserve configuration
* @return The state param representing borrow cap
* @return The state param representing supply cap.
*/
function getCaps(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256, uint256) {
uint256 dataLocal = self.data;
return (
(dataLocal & ~BORROW_CAP_MASK) >> BORROW_CAP_START_BIT_POSITION,
(dataLocal & ~SUPPLY_CAP_MASK) >> SUPPLY_CAP_START_BIT_POSITION
);
}
}// SPDX-License-Identifier: BUSL-1.1
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
import {Errors} from "../helpers/Errors.sol";
import {DataTypes} from "../types/DataTypes.sol";
import {ReserveConfiguration} from "./ReserveConfiguration.sol";
/**
* @title UserConfiguration library
* @author Aave
* @notice Implements the bitmap logic to handle the user configuration
*/
library UserConfiguration {
using ReserveConfiguration for DataTypes.ReserveConfigurationMap;
uint256 internal constant BORROWING_MASK =
0x5555555555555555555555555555555555555555555555555555555555555555;
uint256 internal constant COLLATERAL_MASK =
0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA;
/**
* @notice Sets if the user is borrowing the reserve identified by reserveIndex
* @param self The configuration object
* @param reserveIndex The index of the reserve in the bitmap
* @param borrowing True if the user is borrowing the reserve, false otherwise
*/
function setBorrowing(
DataTypes.UserConfigurationMap storage self,
uint256 reserveIndex,
bool borrowing
) internal {
unchecked {
require(
reserveIndex < ReserveConfiguration.MAX_RESERVES_COUNT,
Errors.INVALID_RESERVE_INDEX
);
uint256 bit = 1 << (reserveIndex << 1);
if (borrowing) {
self.data |= bit;
} else {
self.data &= ~bit;
}
}
}
/**
* @notice Sets if the user is using as collateral the reserve identified by reserveIndex
* @param self The configuration object
* @param reserveIndex The index of the reserve in the bitmap
* @param usingAsCollateral True if the user is using the reserve as collateral, false otherwise
*/
function setUsingAsCollateral(
DataTypes.UserConfigurationMap storage self,
uint256 reserveIndex,
bool usingAsCollateral
) internal {
unchecked {
require(
reserveIndex < ReserveConfiguration.MAX_RESERVES_COUNT,
Errors.INVALID_RESERVE_INDEX
);
uint256 bit = 1 << ((reserveIndex << 1) + 1);
if (usingAsCollateral) {
self.data |= bit;
} else {
self.data &= ~bit;
}
}
}
/**
* @notice Returns if a user has been using the reserve for borrowing or as collateral
* @param self The configuration object
* @param reserveIndex The index of the reserve in the bitmap
* @return True if the user has been using a reserve for borrowing or as collateral, false otherwise
*/
function isUsingAsCollateralOrBorrowing(
DataTypes.UserConfigurationMap memory self,
uint256 reserveIndex
) internal pure returns (bool) {
unchecked {
require(
reserveIndex < ReserveConfiguration.MAX_RESERVES_COUNT,
Errors.INVALID_RESERVE_INDEX
);
return (self.data >> (reserveIndex << 1)) & 3 != 0;
}
}
/**
* @notice Validate a user has been using the reserve for borrowing
* @param self The configuration object
* @param reserveIndex The index of the reserve in the bitmap
* @return True if the user has been using a reserve for borrowing, false otherwise
*/
function isBorrowing(
DataTypes.UserConfigurationMap memory self,
uint256 reserveIndex
) internal pure returns (bool) {
unchecked {
require(
reserveIndex < ReserveConfiguration.MAX_RESERVES_COUNT,
Errors.INVALID_RESERVE_INDEX
);
return (self.data >> (reserveIndex << 1)) & 1 != 0;
}
}
/**
* @notice Validate a user has been using the reserve as collateral
* @param self The configuration object
* @param reserveIndex The index of the reserve in the bitmap
* @return True if the user has been using a reserve as collateral, false otherwise
*/
function isUsingAsCollateral(
DataTypes.UserConfigurationMap memory self,
uint256 reserveIndex
) internal pure returns (bool) {
unchecked {
require(
reserveIndex < ReserveConfiguration.MAX_RESERVES_COUNT,
Errors.INVALID_RESERVE_INDEX
);
return (self.data >> ((reserveIndex << 1) + 1)) & 1 != 0;
}
}
/**
* @notice Checks if a user has been supplying only one reserve as collateral
* @dev this uses a simple trick - if a number is a power of two (only one bit set) then n & (n - 1) == 0
* @param self The configuration object
* @return True if the user has been supplying as collateral one reserve, false otherwise
*/
function isUsingAsCollateralOne(
DataTypes.UserConfigurationMap memory self
) internal pure returns (bool) {
uint256 collateralData = self.data & COLLATERAL_MASK;
return
collateralData != 0 && (collateralData & (collateralData - 1) == 0);
}
/**
* @notice Checks if a user has been supplying any reserve as collateral
* @param self The configuration object
* @return True if the user has been supplying as collateral any reserve, false otherwise
*/
function isUsingAsCollateralAny(
DataTypes.UserConfigurationMap memory self
) internal pure returns (bool) {
return self.data & COLLATERAL_MASK != 0;
}
/**
* @notice Checks if a user has been borrowing only one asset
* @dev this uses a simple trick - if a number is a power of two (only one bit set) then n & (n - 1) == 0
* @param self The configuration object
* @return True if the user has been supplying as collateral one reserve, false otherwise
*/
function isBorrowingOne(
DataTypes.UserConfigurationMap memory self
) internal pure returns (bool) {
uint256 borrowingData = self.data & BORROWING_MASK;
return borrowingData != 0 && (borrowingData & (borrowingData - 1) == 0);
}
/**
* @notice Checks if a user has been borrowing from any reserve
* @param self The configuration object
* @return True if the user has been borrowing any reserve, false otherwise
*/
function isBorrowingAny(
DataTypes.UserConfigurationMap memory self
) internal pure returns (bool) {
return self.data & BORROWING_MASK != 0;
}
/**
* @notice Checks if a user has not been using any reserve for borrowing or supply
* @param self The configuration object
* @return True if the user has not been borrowing or supplying any reserve, false otherwise
*/
function isEmpty(
DataTypes.UserConfigurationMap memory self
) internal pure returns (bool) {
return self.data == 0;
}
/**
* @notice Returns the Isolation Mode state of the user
* @param self The configuration object
* @param reservesData The state of all the reserves
* @param reservesList The addresses of all the active reserves
* @return True if the user is in isolation mode, false otherwise
* @return The address of the only asset used as collateral
* @return The debt ceiling of the reserve
*/
function getIsolationModeState(
DataTypes.UserConfigurationMap memory self,
mapping(address => DataTypes.ReserveData) storage reservesData,
mapping(uint256 => address) storage reservesList
) internal view returns (bool, address, uint256) {
if (isUsingAsCollateralOne(self)) {
uint256 assetId = _getFirstAssetIdByMask(self, COLLATERAL_MASK);
address assetAddress = reservesList[assetId];
uint256 ceiling = reservesData[assetAddress]
.configuration
.getDebtCeiling();
if (ceiling != 0) {
return (true, assetAddress, ceiling);
}
}
return (false, address(0), 0);
}
/**
* @notice Returns the siloed borrowing state for the user
* @param self The configuration object
* @param reservesData The data of all the reserves
* @param reservesList The reserve list
* @return True if the user has borrowed a siloed asset, false otherwise
* @return The address of the only borrowed asset
*/
function getSiloedBorrowingState(
DataTypes.UserConfigurationMap memory self,
mapping(address => DataTypes.ReserveData) storage reservesData,
mapping(uint256 => address) storage reservesList
) internal view returns (bool, address) {
if (isBorrowingOne(self)) {
uint256 assetId = _getFirstAssetIdByMask(self, BORROWING_MASK);
address assetAddress = reservesList[assetId];
if (reservesData[assetAddress].configuration.getSiloedBorrowing()) {
return (true, assetAddress);
}
}
return (false, address(0));
}
/**
* @notice Returns the address of the first asset flagged in the bitmap given the corresponding bitmask
* @param self The configuration object
* @return The index of the first asset flagged in the bitmap once the corresponding mask is applied
*/
function _getFirstAssetIdByMask(
DataTypes.UserConfigurationMap memory self,
uint256 mask
) internal pure returns (uint256) {
unchecked {
uint256 bitmapData = self.data & mask;
uint256 firstAssetPosition = bitmapData & ~(bitmapData - 1);
uint256 id;
while ((firstAssetPosition >>= 2) != 0) {
id += 1;
}
return id;
}
}
}// SPDX-License-Identifier: BUSL-1.1
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
/**
* @title Errors library
* @author Aave
* @notice Defines the error messages emitted by the different contracts of the Aave protocol
*/
library Errors {
string public constant CALLER_NOT_POOL_ADMIN = "1"; // 'The caller of the function is not a pool admin'
string public constant CALLER_NOT_EMERGENCY_ADMIN = "2"; // 'The caller of the function is not an emergency admin'
string public constant CALLER_NOT_POOL_OR_EMERGENCY_ADMIN = "3"; // 'The caller of the function is not a pool or emergency admin'
string public constant CALLER_NOT_RISK_OR_POOL_ADMIN = "4"; // 'The caller of the function is not a risk or pool admin'
string public constant CALLER_NOT_ASSET_LISTING_OR_POOL_ADMIN = "5"; // 'The caller of the function is not an asset listing or pool admin'
string public constant CALLER_NOT_BRIDGE = "6"; // 'The caller of the function is not a bridge'
string public constant ADDRESSES_PROVIDER_NOT_REGISTERED = "7"; // 'Pool addresses provider is not registered'
string public constant INVALID_ADDRESSES_PROVIDER_ID = "8"; // 'Invalid id for the pool addresses provider'
string public constant NOT_CONTRACT = "9"; // 'Address is not a contract'
string public constant CALLER_NOT_POOL_CONFIGURATOR = "10"; // 'The caller of the function is not the pool configurator'
string public constant CALLER_NOT_ATOKEN = "11"; // 'The caller of the function is not an AToken'
string public constant INVALID_ADDRESSES_PROVIDER = "12"; // 'The address of the pool addresses provider is invalid'
string public constant INVALID_FLASHLOAN_EXECUTOR_RETURN = "13"; // 'Invalid return value of the flashloan executor function'
string public constant RESERVE_ALREADY_ADDED = "14"; // 'Reserve has already been added to reserve list'
string public constant NO_MORE_RESERVES_ALLOWED = "15"; // 'Maximum amount of reserves in the pool reached'
string public constant EMODE_CATEGORY_RESERVED = "16"; // 'Zero eMode category is reserved for volatile heterogeneous assets'
string public constant INVALID_EMODE_CATEGORY_ASSIGNMENT = "17"; // 'Invalid eMode category assignment to asset'
string public constant RESERVE_LIQUIDITY_NOT_ZERO = "18"; // 'The liquidity of the reserve needs to be 0'
string public constant FLASHLOAN_PREMIUM_INVALID = "19"; // 'Invalid flashloan premium'
string public constant INVALID_RESERVE_PARAMS = "20"; // 'Invalid risk parameters for the reserve'
string public constant INVALID_EMODE_CATEGORY_PARAMS = "21"; // 'Invalid risk parameters for the eMode category'
string public constant BRIDGE_PROTOCOL_FEE_INVALID = "22"; // 'Invalid bridge protocol fee'
string public constant CALLER_MUST_BE_POOL = "23"; // 'The caller of this function must be a pool'
string public constant INVALID_MINT_AMOUNT = "24"; // 'Invalid amount to mint'
string public constant INVALID_BURN_AMOUNT = "25"; // 'Invalid amount to burn'
string public constant INVALID_AMOUNT = "26"; // 'Amount must be greater than 0'
string public constant RESERVE_INACTIVE = "27"; // 'Action requires an active reserve'
string public constant RESERVE_FROZEN = "28"; // 'Action cannot be performed because the reserve is frozen'
string public constant RESERVE_PAUSED = "29"; // 'Action cannot be performed because the reserve is paused'
string public constant BORROWING_NOT_ENABLED = "30"; // 'Borrowing is not enabled'
string public constant STABLE_BORROWING_NOT_ENABLED = "31"; // 'Stable borrowing is not enabled'
string public constant NOT_ENOUGH_AVAILABLE_USER_BALANCE = "32"; // 'User cannot withdraw more than the available balance'
string public constant INVALID_INTEREST_RATE_MODE_SELECTED = "33"; // 'Invalid interest rate mode selected'
string public constant COLLATERAL_BALANCE_IS_ZERO = "34"; // 'The collateral balance is 0'
string public constant HEALTH_FACTOR_LOWER_THAN_LIQUIDATION_THRESHOLD =
"35"; // 'Health factor is lesser than the liquidation threshold'
string public constant COLLATERAL_CANNOT_COVER_NEW_BORROW = "36"; // 'There is not enough collateral to cover a new borrow'
string public constant COLLATERAL_SAME_AS_BORROWING_CURRENCY = "37"; // 'Collateral is (mostly) the same currency that is being borrowed'
string public constant AMOUNT_BIGGER_THAN_MAX_LOAN_SIZE_STABLE = "38"; // 'The requested amount is greater than the max loan size in stable rate mode'
string public constant NO_DEBT_OF_SELECTED_TYPE = "39"; // 'For repayment of a specific type of debt, the user needs to have debt that type'
string public constant NO_EXPLICIT_AMOUNT_TO_REPAY_ON_BEHALF = "40"; // 'To repay on behalf of a user an explicit amount to repay is needed'
string public constant NO_OUTSTANDING_STABLE_DEBT = "41"; // 'User does not have outstanding stable rate debt on this reserve'
string public constant NO_OUTSTANDING_VARIABLE_DEBT = "42"; // 'User does not have outstanding variable rate debt on this reserve'
string public constant UNDERLYING_BALANCE_ZERO = "43"; // 'The underlying balance needs to be greater than 0'
string public constant INTEREST_RATE_REBALANCE_CONDITIONS_NOT_MET = "44"; // 'Interest rate rebalance conditions were not met'
string public constant HEALTH_FACTOR_NOT_BELOW_THRESHOLD = "45"; // 'Health factor is not below the threshold'
string public constant COLLATERAL_CANNOT_BE_LIQUIDATED = "46"; // 'The collateral chosen cannot be liquidated'
string public constant SPECIFIED_CURRENCY_NOT_BORROWED_BY_USER = "47"; // 'User did not borrow the specified currency'
string public constant INCONSISTENT_FLASHLOAN_PARAMS = "49"; // 'Inconsistent flashloan parameters'
string public constant BORROW_CAP_EXCEEDED = "50"; // 'Borrow cap is exceeded'
string public constant SUPPLY_CAP_EXCEEDED = "51"; // 'Supply cap is exceeded'
string public constant UNBACKED_MINT_CAP_EXCEEDED = "52"; // 'Unbacked mint cap is exceeded'
string public constant DEBT_CEILING_EXCEEDED = "53"; // 'Debt ceiling is exceeded'
string public constant UNDERLYING_CLAIMABLE_RIGHTS_NOT_ZERO = "54"; // 'Claimable rights over underlying not zero (aToken supply or accruedToTreasury)'
string public constant STABLE_DEBT_NOT_ZERO = "55"; // 'Stable debt supply is not zero'
string public constant VARIABLE_DEBT_SUPPLY_NOT_ZERO = "56"; // 'Variable debt supply is not zero'
string public constant LTV_VALIDATION_FAILED = "57"; // 'Ltv validation failed'
string public constant INCONSISTENT_EMODE_CATEGORY = "58"; // 'Inconsistent eMode category'
string public constant PRICE_ORACLE_SENTINEL_CHECK_FAILED = "59"; // 'Price oracle sentinel validation failed'
string public constant ASSET_NOT_BORROWABLE_IN_ISOLATION = "60"; // 'Asset is not borrowable in isolation mode'
string public constant RESERVE_ALREADY_INITIALIZED = "61"; // 'Reserve has already been initialized'
string public constant USER_IN_ISOLATION_MODE_OR_LTV_ZERO = "62"; // 'User is in isolation mode or ltv is zero'
string public constant INVALID_LTV = "63"; // 'Invalid ltv parameter for the reserve'
string public constant INVALID_LIQ_THRESHOLD = "64"; // 'Invalid liquidity threshold parameter for the reserve'
string public constant INVALID_LIQ_BONUS = "65"; // 'Invalid liquidity bonus parameter for the reserve'
string public constant INVALID_DECIMALS = "66"; // 'Invalid decimals parameter of the underlying asset of the reserve'
string public constant INVALID_RESERVE_FACTOR = "67"; // 'Invalid reserve factor parameter for the reserve'
string public constant INVALID_BORROW_CAP = "68"; // 'Invalid borrow cap for the reserve'
string public constant INVALID_SUPPLY_CAP = "69"; // 'Invalid supply cap for the reserve'
string public constant INVALID_LIQUIDATION_PROTOCOL_FEE = "70"; // 'Invalid liquidation protocol fee for the reserve'
string public constant INVALID_EMODE_CATEGORY = "71"; // 'Invalid eMode category for the reserve'
string public constant INVALID_UNBACKED_MINT_CAP = "72"; // 'Invalid unbacked mint cap for the reserve'
string public constant INVALID_DEBT_CEILING = "73"; // 'Invalid debt ceiling for the reserve
string public constant INVALID_RESERVE_INDEX = "74"; // 'Invalid reserve index'
string public constant ACL_ADMIN_CANNOT_BE_ZERO = "75"; // 'ACL admin cannot be set to the zero address'
string public constant INCONSISTENT_PARAMS_LENGTH = "76"; // 'Array parameters that should be equal length are not'
string public constant ZERO_ADDRESS_NOT_VALID = "77"; // 'Zero address not valid'
string public constant INVALID_EXPIRATION = "78"; // 'Invalid expiration'
string public constant INVALID_SIGNATURE = "79"; // 'Invalid signature'
string public constant OPERATION_NOT_SUPPORTED = "80"; // 'Operation not supported'
string public constant DEBT_CEILING_NOT_ZERO = "81"; // 'Debt ceiling is not zero'
string public constant ASSET_NOT_LISTED = "82"; // 'Asset is not listed'
string public constant INVALID_OPTIMAL_USAGE_RATIO = "83"; // 'Invalid optimal usage ratio'
string public constant INVALID_OPTIMAL_STABLE_TO_TOTAL_DEBT_RATIO = "84"; // 'Invalid optimal stable to total debt ratio'
string public constant UNDERLYING_CANNOT_BE_RESCUED = "85"; // 'The underlying asset cannot be rescued'
string public constant ADDRESSES_PROVIDER_ALREADY_ADDED = "86"; // 'Reserve has already been added to reserve list'
string public constant POOL_ADDRESSES_DO_NOT_MATCH = "87"; // 'The token implementation pool address and the pool address provided by the initializing pool do not match'
string public constant STABLE_BORROWING_ENABLED = "88"; // 'Stable borrowing is enabled'
string public constant SILOED_BORROWING_VIOLATION = "89"; // 'User is trying to borrow multiple assets including a siloed one'
string public constant RESERVE_DEBT_NOT_ZERO = "90"; // the total debt of the reserve needs to be 0
string public constant FLASHLOAN_DISABLED = "91"; // FlashLoaning for this asset is disabled
}// SPDX-License-Identifier: BUSL-1.1
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.10;
import {GPv2SafeERC20} from "../../../dependencies/gnosis/contracts/GPv2SafeERC20.sol";
import {IERC20} from "../../../dependencies/openzeppelin/contracts/IERC20.sol";
import {IPriceOracleGetter} from "../../../interfaces/IPriceOracleGetter.sol";
import {UserConfiguration} from "../configuration/UserConfiguration.sol";
import {Errors} from "../helpers/Errors.sol";
import {WadRayMath} from "../math/WadRayMath.sol";
import {PercentageMath} from "../math/PercentageMath.sol";
import {DataTypes} from "../types/DataTypes.sol";
import {ValidationLogic} from "./ValidationLogic.sol";
import {ReserveLogic} from "./ReserveLogic.sol";
/**
* @title EModeLogic library
* @author Aave
* @notice Implements the base logic for all the actions related to the eMode
*/
library EModeLogic {
using ReserveLogic for DataTypes.ReserveCache;
using ReserveLogic for DataTypes.ReserveData;
using GPv2SafeERC20 for IERC20;
using UserConfiguration for DataTypes.UserConfigurationMap;
using WadRayMath for uint256;
using PercentageMath for uint256;
// See `IPool` for descriptions
event UserEModeSet(address indexed user, uint8 categoryId);
/**
* @notice Updates the user efficiency mode category
* @dev Will revert if user is borrowing non-compatible asset or change will drop HF < HEALTH_FACTOR_LIQUIDATION_THRESHOLD
* @dev Emits the `UserEModeSet` event
* @param reservesData The state of all the reserves
* @param reservesList The addresses of all the active reserves
* @param eModeCategories The configuration of all the efficiency mode categories
* @param usersEModeCategory The state of all users efficiency mode category
* @param userConfig The user configuration mapping that tracks the supplied/borrowed assets
* @param params The additional parameters needed to execute the setUserEMode function
*/
function executeSetUserEMode(
mapping(address => DataTypes.ReserveData) storage reservesData,
mapping(uint256 => address) storage reservesList,
mapping(uint8 => DataTypes.EModeCategory) storage eModeCategories,
mapping(address => uint8) storage usersEModeCategory,
DataTypes.UserConfigurationMap storage userConfig,
DataTypes.ExecuteSetUserEModeParams memory params
) external {
ValidationLogic.validateSetUserEMode(
reservesData,
reservesList,
eModeCategories,
userConfig,
params.reservesCount,
params.categoryId
);
uint8 prevCategoryId = usersEModeCategory[msg.sender];
usersEModeCategory[msg.sender] = params.categoryId;
if (prevCategoryId != 0) {
ValidationLogic.validateHealthFactor(
reservesData,
reservesList,
eModeCategories,
userConfig,
msg.sender,
params.categoryId,
params.reservesCount,
params.oracle
);
}
emit UserEModeSet(msg.sender, params.categoryId);
}
/**
* @notice Gets the eMode configuration and calculates the eMode asset price if a custom oracle is configured
* @dev The eMode asset price returned is 0 if no oracle is specified
* @param category The user eMode category
* @param oracle The price oracle
* @return The eMode ltv
* @return The eMode liquidation threshold
* @return The eMode asset price
*/
function getEModeConfiguration(
DataTypes.EModeCategory storage category,
IPriceOracleGetter oracle
) internal view returns (uint256, uint256, uint256) {
uint256 eModeAssetPrice = 0;
address eModePriceSource = category.priceSource;
if (eModePriceSource != address(0)) {
eModeAssetPrice = oracle.getAssetPrice(eModePriceSource);
}
return (category.ltv, category.liquidationThreshold, eModeAssetPrice);
}
/**
* @notice Checks if eMode is active for a user and if yes, if the asset belongs to the eMode category chosen
* @param eModeUserCategory The user eMode category
* @param eModeAssetCategory The asset eMode category
* @return True if eMode is active and the asset belongs to the eMode category chosen by the user, false otherwise
*/
function isInEModeCategory(
uint256 eModeUserCategory,
uint256 eModeAssetCategory
) internal pure returns (bool) {
return (eModeUserCategory != 0 &&
eModeAssetCategory == eModeUserCategory);
}
}// SPDX-License-Identifier: BUSL-1.1
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.10;
import {IERC20} from "../../../dependencies/openzeppelin/contracts/IERC20.sol";
import {IScaledBalanceToken} from "../../../interfaces/IScaledBalanceToken.sol";
import {IPriceOracleGetter} from "../../../interfaces/IPriceOracleGetter.sol";
import {ReserveConfiguration} from "../configuration/ReserveConfiguration.sol";
import {UserConfiguration} from "../configuration/UserConfiguration.sol";
import {PercentageMath} from "../math/PercentageMath.sol";
import {WadRayMath} from "../math/WadRayMath.sol";
import {DataTypes} from "../types/DataTypes.sol";
import {ReserveLogic} from "./ReserveLogic.sol";
import {EModeLogic} from "./EModeLogic.sol";
/**
* @title GenericLogic library
* @author Aave
* @notice Implements protocol-level logic to calculate and validate the state of a user
*/
library GenericLogic {
using ReserveLogic for DataTypes.ReserveData;
using WadRayMath for uint256;
using PercentageMath for uint256;
using ReserveConfiguration for DataTypes.ReserveConfigurationMap;
using UserConfiguration for DataTypes.UserConfigurationMap;
struct CalculateUserAccountDataVars {
uint256 assetPrice;
uint256 assetUnit;
uint256 userBalanceInBaseCurrency;
uint256 decimals;
uint256 ltv;
uint256 liquidationThreshold;
uint256 i;
uint256 healthFactor;
uint256 totalCollateralInBaseCurrency;
uint256 totalDebtInBaseCurrency;
uint256 avgLtv;
uint256 avgLiquidationThreshold;
uint256 eModeAssetPrice;
uint256 eModeLtv;
uint256 eModeLiqThreshold;
uint256 eModeAssetCategory;
address currentReserveAddress;
bool hasZeroLtvCollateral;
bool isInEModeCategory;
}
/**
* @notice Calculates the user data across the reserves.
* @dev It includes the total liquidity/collateral/borrow balances in the base currency used by the price feed,
* the average Loan To Value, the average Liquidation Ratio, and the Health factor.
* @param reservesData The state of all the reserves
* @param reservesList The addresses of all the active reserves
* @param eModeCategories The configuration of all the efficiency mode categories
* @param params Additional parameters needed for the calculation
* @return The total collateral of the user in the base currency used by the price feed
* @return The total debt of the user in the base currency used by the price feed
* @return The average ltv of the user
* @return The average liquidation threshold of the user
* @return The health factor of the user
* @return True if the ltv is zero, false otherwise
*/
function calculateUserAccountData(
mapping(address => DataTypes.ReserveData) storage reservesData,
mapping(uint256 => address) storage reservesList,
mapping(uint8 => DataTypes.EModeCategory) storage eModeCategories,
DataTypes.CalculateUserAccountDataParams memory params
)
internal
view
returns (uint256, uint256, uint256, uint256, uint256, bool)
{
if (params.userConfig.isEmpty()) {
return (0, 0, 0, 0, type(uint256).max, false);
}
CalculateUserAccountDataVars memory vars;
if (params.userEModeCategory != 0) {
(
vars.eModeLtv,
vars.eModeLiqThreshold,
vars.eModeAssetPrice
) = EModeLogic.getEModeConfiguration(
eModeCategories[params.userEModeCategory],
IPriceOracleGetter(params.oracle)
);
}
while (vars.i < params.reservesCount) {
if (!params.userConfig.isUsingAsCollateralOrBorrowing(vars.i)) {
unchecked {
++vars.i;
}
continue;
}
vars.currentReserveAddress = reservesList[vars.i];
if (vars.currentReserveAddress == address(0)) {
unchecked {
++vars.i;
}
continue;
}
DataTypes.ReserveData storage currentReserve = reservesData[
vars.currentReserveAddress
];
(
vars.ltv,
vars.liquidationThreshold,
,
vars.decimals,
,
vars.eModeAssetCategory
) = currentReserve.configuration.getParams();
unchecked {
vars.assetUnit = 10 ** vars.decimals;
}
vars.assetPrice = vars.eModeAssetPrice != 0 &&
params.userEModeCategory == vars.eModeAssetCategory
? vars.eModeAssetPrice
: IPriceOracleGetter(params.oracle).getAssetPrice(
vars.currentReserveAddress
);
if (
vars.liquidationThreshold != 0 &&
params.userConfig.isUsingAsCollateral(vars.i)
) {
vars.userBalanceInBaseCurrency = _getUserBalanceInBaseCurrency(
params.user,
currentReserve,
vars.assetPrice,
vars.assetUnit
);
vars.totalCollateralInBaseCurrency += vars
.userBalanceInBaseCurrency;
vars.isInEModeCategory = EModeLogic.isInEModeCategory(
params.userEModeCategory,
vars.eModeAssetCategory
);
if (vars.ltv != 0) {
vars.avgLtv +=
vars.userBalanceInBaseCurrency *
(vars.isInEModeCategory ? vars.eModeLtv : vars.ltv);
} else {
vars.hasZeroLtvCollateral = true;
}
vars.avgLiquidationThreshold +=
vars.userBalanceInBaseCurrency *
(
vars.isInEModeCategory
? vars.eModeLiqThreshold
: vars.liquidationThreshold
);
}
if (params.userConfig.isBorrowing(vars.i)) {
vars.totalDebtInBaseCurrency += _getUserDebtInBaseCurrency(
params.user,
currentReserve,
vars.assetPrice,
vars.assetUnit
);
}
unchecked {
++vars.i;
}
}
unchecked {
vars.avgLtv = vars.totalCollateralInBaseCurrency != 0
? vars.avgLtv / vars.totalCollateralInBaseCurrency
: 0;
vars.avgLiquidationThreshold = vars.totalCollateralInBaseCurrency !=
0
? vars.avgLiquidationThreshold /
vars.totalCollateralInBaseCurrency
: 0;
}
vars.healthFactor = (vars.totalDebtInBaseCurrency == 0)
? type(uint256).max
: (
vars.totalCollateralInBaseCurrency.percentMul(
vars.avgLiquidationThreshold
)
).wadDiv(vars.totalDebtInBaseCurrency);
return (
vars.totalCollateralInBaseCurrency,
vars.totalDebtInBaseCurrency,
vars.avgLtv,
vars.avgLiquidationThreshold,
vars.healthFactor,
vars.hasZeroLtvCollateral
);
}
/**
* @notice Calculates the maximum amount that can be borrowed depending on the available collateral, the total debt
* and the average Loan To Value
* @param totalCollateralInBaseCurrency The total collateral in the base currency used by the price feed
* @param totalDebtInBaseCurrency The total borrow balance in the base currency used by the price feed
* @param ltv The average loan to value
* @return The amount available to borrow in the base currency of the used by the price feed
*/
function calculateAvailableBorrows(
uint256 totalCollateralInBaseCurrency,
uint256 totalDebtInBaseCurrency,
uint256 ltv
) internal pure returns (uint256) {
uint256 availableBorrowsInBaseCurrency = totalCollateralInBaseCurrency
.percentMul(ltv);
if (availableBorrowsInBaseCurrency < totalDebtInBaseCurrency) {
return 0;
}
availableBorrowsInBaseCurrency =
availableBorrowsInBaseCurrency -
totalDebtInBaseCurrency;
return availableBorrowsInBaseCurrency;
}
/**
* @notice Calculates total debt of the user in the based currency used to normalize the values of the assets
* @dev This fetches the `balanceOf` of the stable and variable debt tokens for the user. For gas reasons, the
* variable debt balance is calculated by fetching `scaledBalancesOf` normalized debt, which is cheaper than
* fetching `balanceOf`
* @param user The address of the user
* @param reserve The data of the reserve for which the total debt of the user is being calculated
* @param assetPrice The price of the asset for which the total debt of the user is being calculated
* @param assetUnit The value representing one full unit of the asset (10^decimals)
* @return The total debt of the user normalized to the base currency
*/
function _getUserDebtInBaseCurrency(
address user,
DataTypes.ReserveData storage reserve,
uint256 assetPrice,
uint256 assetUnit
) private view returns (uint256) {
// fetching variable debt
uint256 userTotalDebt = IScaledBalanceToken(
reserve.variableDebtTokenAddress
).scaledBalanceOf(user);
if (userTotalDebt != 0) {
userTotalDebt = userTotalDebt.rayMul(reserve.getNormalizedDebt());
}
userTotalDebt =
userTotalDebt +
IERC20(reserve.stableDebtTokenAddress).balanceOf(user);
userTotalDebt = assetPrice * userTotalDebt;
unchecked {
return userTotalDebt / assetUnit;
}
}
/**
* @notice Calculates total aToken balance of the user in the based currency used by the price oracle
* @dev For gas reasons, the aToken balance is calculated by fetching `scaledBalancesOf` normalized debt, which
* is cheaper than fetching `balanceOf`
* @param user The address of the user
* @param reserve The data of the reserve for which the total aToken balance of the user is being calculated
* @param assetPrice The price of the asset for which the total aToken balance of the user is being calculated
* @param assetUnit The value representing one full unit of the asset (10^decimals)
* @return The total aToken balance of the user normalized to the base currency of the price oracle
*/
function _getUserBalanceInBaseCurrency(
address user,
DataTypes.ReserveData storage reserve,
uint256 assetPrice,
uint256 assetUnit
) private view returns (uint256) {
uint256 normalizedIncome = reserve.getNormalizedIncome();
uint256 balance = (
IScaledBalanceToken(reserve.aTokenAddress)
.scaledBalanceOf(user)
.rayMul(normalizedIncome)
) * assetPrice;
unchecked {
return balance / assetUnit;
}
}
}// SPDX-License-Identifier: BUSL-1.1
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.10;
import {IERC20} from "../../../dependencies/openzeppelin/contracts/IERC20.sol";
import {GPv2SafeERC20} from "../../../dependencies/gnosis/contracts/GPv2SafeERC20.sol";
import {IStableDebtToken} from "../../../interfaces/IStableDebtToken.sol";
import {IVariableDebtToken} from "../../../interfaces/IVariableDebtToken.sol";
import {IReserveInterestRateStrategy} from "../../../interfaces/IReserveInterestRateStrategy.sol";
import {ReserveConfiguration} from "../configuration/ReserveConfiguration.sol";
import {MathUtils} from "../math/MathUtils.sol";
import {WadRayMath} from "../math/WadRayMath.sol";
import {PercentageMath} from "../math/PercentageMath.sol";
import {Errors} from "../helpers/Errors.sol";
import {DataTypes} from "../types/DataTypes.sol";
import {SafeCast} from "../../../dependencies/openzeppelin/contracts/SafeCast.sol";
/**
* @title ReserveLogic library
* @author Aave
* @notice Implements the logic to update the reserves state
*/
library ReserveLogic {
using WadRayMath for uint256;
using PercentageMath for uint256;
using SafeCast for uint256;
using GPv2SafeERC20 for IERC20;
using ReserveLogic for DataTypes.ReserveData;
using ReserveConfiguration for DataTypes.ReserveConfigurationMap;
// See `IPool` for descriptions
event ReserveDataUpdated(
address indexed reserve,
uint256 liquidityRate,
uint256 stableBorrowRate,
uint256 variableBorrowRate,
uint256 liquidityIndex,
uint256 variableBorrowIndex
);
/**
* @notice Returns the ongoing normalized income for the reserve.
* @dev A value of 1e27 means there is no income. As time passes, the income is accrued
* @dev A value of 2*1e27 means for each unit of asset one unit of income has been accrued
* @param reserve The reserve object
* @return The normalized income, expressed in ray
*/
function getNormalizedIncome(
DataTypes.ReserveData storage reserve
) internal view returns (uint256) {
uint40 timestamp = reserve.lastUpdateTimestamp;
//solium-disable-next-line
if (timestamp == block.timestamp) {
//if the index was updated in the same block, no need to perform any calculation
return reserve.liquidityIndex;
} else {
return
MathUtils
.calculateLinearInterest(
reserve.currentLiquidityRate,
timestamp
)
.rayMul(reserve.liquidityIndex);
}
}
/**
* @notice Returns the ongoing normalized variable debt for the reserve.
* @dev A value of 1e27 means there is no debt. As time passes, the debt is accrued
* @dev A value of 2*1e27 means that for each unit of debt, one unit worth of interest has been accumulated
* @param reserve The reserve object
* @return The normalized variable debt, expressed in ray
*/
function getNormalizedDebt(
DataTypes.ReserveData storage reserve
) internal view returns (uint256) {
uint40 timestamp = reserve.lastUpdateTimestamp;
//solium-disable-next-line
if (timestamp == block.timestamp) {
//if the index was updated in the same block, no need to perform any calculation
return reserve.variableBorrowIndex;
} else {
return
MathUtils
.calculateCompoundedInterest(
reserve.currentVariableBorrowRate,
timestamp
)
.rayMul(reserve.variableBorrowIndex);
}
}
/**
* @notice Updates the liquidity cumulative index and the variable borrow index.
* @param reserve The reserve object
* @param reserveCache The caching layer for the reserve data
*/
function updateState(
DataTypes.ReserveData storage reserve,
DataTypes.ReserveCache memory reserveCache
) internal {
// If time didn't pass since last stored timestamp, skip state update
//solium-disable-next-line
if (reserve.lastUpdateTimestamp == uint40(block.timestamp)) {
return;
}
_updateIndexes(reserve, reserveCache);
_accrueToTreasury(reserve, reserveCache);
//solium-disable-next-line
reserve.lastUpdateTimestamp = uint40(block.timestamp);
}
/**
* @notice Accumulates a predefined amount of asset to the reserve as a fixed, instantaneous income. Used for example
* to accumulate the flashloan fee to the reserve, and spread it between all the suppliers.
* @param reserve The reserve object
* @param totalLiquidity The total liquidity available in the reserve
* @param amount The amount to accumulate
* @return The next liquidity index of the reserve
*/
function cumulateToLiquidityIndex(
DataTypes.ReserveData storage reserve,
uint256 totalLiquidity,
uint256 amount
) internal returns (uint256) {
//next liquidity index is calculated this way: `((amount / totalLiquidity) + 1) * liquidityIndex`
//division `amount / totalLiquidity` done in ray for precision
uint256 result = (amount.wadToRay().rayDiv(totalLiquidity.wadToRay()) +
WadRayMath.RAY).rayMul(reserve.liquidityIndex);
reserve.liquidityIndex = result.toUint128();
return result;
}
/**
* @notice Initializes a reserve.
* @param reserve The reserve object
* @param aTokenAddress The address of the overlying atoken contract
* @param stableDebtTokenAddress The address of the overlying stable debt token contract
* @param variableDebtTokenAddress The address of the overlying variable debt token contract
* @param interestRateStrategyAddress The address of the interest rate strategy contract
*/
function init(
DataTypes.ReserveData storage reserve,
address aTokenAddress,
address stableDebtTokenAddress,
address variableDebtTokenAddress,
address interestRateStrategyAddress
) internal {
require(
reserve.aTokenAddress == address(0),
Errors.RESERVE_ALREADY_INITIALIZED
);
reserve.liquidityIndex = uint128(WadRayMath.RAY);
reserve.variableBorrowIndex = uint128(WadRayMath.RAY);
reserve.aTokenAddress = aTokenAddress;
reserve.stableDebtTokenAddress = stableDebtTokenAddress;
reserve.variableDebtTokenAddress = variableDebtTokenAddress;
reserve.interestRateStrategyAddress = interestRateStrategyAddress;
}
struct UpdateInterestRatesLocalVars {
uint256 nextLiquidityRate;
uint256 nextStableRate;
uint256 nextVariableRate;
uint256 totalVariableDebt;
}
/**
* @notice Updates the reserve current stable borrow rate, the current variable borrow rate and the current liquidity rate.
* @param reserve The reserve reserve to be updated
* @param reserveCache The caching layer for the reserve data
* @param reserveAddress The address of the reserve to be updated
* @param liquidityAdded The amount of liquidity added to the protocol (supply or repay) in the previous action
* @param liquidityTaken The amount of liquidity taken from the protocol (redeem or borrow)
*/
function updateInterestRates(
DataTypes.ReserveData storage reserve,
DataTypes.ReserveCache memory reserveCache,
address reserveAddress,
uint256 liquidityAdded,
uint256 liquidityTaken
) internal {
UpdateInterestRatesLocalVars memory vars;
vars.totalVariableDebt = reserveCache.nextScaledVariableDebt.rayMul(
reserveCache.nextVariableBorrowIndex
);
(
vars.nextLiquidityRate,
vars.nextStableRate,
vars.nextVariableRate
) = IReserveInterestRateStrategy(reserve.interestRateStrategyAddress)
.calculateInterestRates(
DataTypes.CalculateInterestRatesParams({
unbacked: reserve.unbacked,
liquidityAdded: liquidityAdded,
liquidityTaken: liquidityTaken,
totalStableDebt: reserveCache.nextTotalStableDebt,
totalVariableDebt: vars.totalVariableDebt,
averageStableBorrowRate: reserveCache
.nextAvgStableBorrowRate,
reserveFactor: reserveCache.reserveFactor,
reserve: reserveAddress,
aToken: reserveCache.aTokenAddress
})
);
reserve.currentLiquidityRate = vars.nextLiquidityRate.toUint128();
reserve.currentStableBorrowRate = vars.nextStableRate.toUint128();
reserve.currentVariableBorrowRate = vars.nextVariableRate.toUint128();
emit ReserveDataUpdated(
reserveAddress,
vars.nextLiquidityRate,
vars.nextStableRate,
vars.nextVariableRate,
reserveCache.nextLiquidityIndex,
reserveCache.nextVariableBorrowIndex
);
}
struct AccrueToTreasuryLocalVars {
uint256 prevTotalStableDebt;
uint256 prevTotalVariableDebt;
uint256 currTotalVariableDebt;
uint256 cumulatedStableInterest;
uint256 totalDebtAccrued;
uint256 amountToMint;
}
/**
* @notice Mints part of the repaid interest to the reserve treasury as a function of the reserve factor for the
* specific asset.
* @param reserve The reserve to be updated
* @param reserveCache The caching layer for the reserve data
*/
function _accrueToTreasury(
DataTypes.ReserveData storage reserve,
DataTypes.ReserveCache memory reserveCache
) internal {
AccrueToTreasuryLocalVars memory vars;
if (reserveCache.reserveFactor == 0) {
return;
}
//calculate the total variable debt at moment of the last interaction
vars.prevTotalVariableDebt = reserveCache.currScaledVariableDebt.rayMul(
reserveCache.currVariableBorrowIndex
);
//calculate the new total variable debt after accumulation of the interest on the index
vars.currTotalVariableDebt = reserveCache.currScaledVariableDebt.rayMul(
reserveCache.nextVariableBorrowIndex
);
//calculate the stable debt until the last timestamp update
vars.cumulatedStableInterest = MathUtils.calculateCompoundedInterest(
reserveCache.currAvgStableBorrowRate,
reserveCache.stableDebtLastUpdateTimestamp,
reserveCache.reserveLastUpdateTimestamp
);
vars.prevTotalStableDebt = reserveCache.currPrincipalStableDebt.rayMul(
vars.cumulatedStableInterest
);
//debt accrued is the sum of the current debt minus the sum of the debt at the last update
vars.totalDebtAccrued =
vars.currTotalVariableDebt +
reserveCache.currTotalStableDebt -
vars.prevTotalVariableDebt -
vars.prevTotalStableDebt;
vars.amountToMint = vars.totalDebtAccrued.percentMul(
reserveCache.reserveFactor
);
if (vars.amountToMint != 0) {
reserve.accruedToTreasury += vars
.amountToMint
.rayDiv(reserveCache.nextLiquidityIndex)
.toUint128();
}
}
/**
* @notice Updates the reserve indexes and the timestamp of the update.
* @param reserve The reserve reserve to be updated
* @param reserveCache The cache layer holding the cached protocol data
*/
function _updateIndexes(
DataTypes.ReserveData storage reserve,
DataTypes.ReserveCache memory reserveCache
) internal {
// Only cumulating on the supply side if there is any income being produced
// The case of Reserve Factor 100% is not a problem (currentLiquidityRate == 0),
// as liquidity index should not be updated
if (reserveCache.currLiquidityRate != 0) {
uint256 cumulatedLiquidityInterest = MathUtils
.calculateLinearInterest(
reserveCache.currLiquidityRate,
reserveCache.reserveLastUpdateTimestamp
);
reserveCache.nextLiquidityIndex = cumulatedLiquidityInterest.rayMul(
reserveCache.currLiquidityIndex
);
reserve.liquidityIndex = reserveCache
.nextLiquidityIndex
.toUint128();
}
// Variable borrow index only gets updated if there is any variable debt.
// reserveCache.currVariableBorrowRate != 0 is not a correct validation,
// because a positive base variable rate can be stored on
// reserveCache.currVariableBorrowRate, but the index should not increase
if (reserveCache.currScaledVariableDebt != 0) {
uint256 cumulatedVariableBorrowInterest = MathUtils
.calculateCompoundedInterest(
reserveCache.currVariableBorrowRate,
reserveCache.reserveLastUpdateTimestamp
);
reserveCache
.nextVariableBorrowIndex = cumulatedVariableBorrowInterest
.rayMul(reserveCache.currVariableBorrowIndex);
reserve.variableBorrowIndex = reserveCache
.nextVariableBorrowIndex
.toUint128();
}
}
/**
* @notice Creates a cache object to avoid repeated storage reads and external contract calls when updating state and
* interest rates.
* @param reserve The reserve object for which the cache will be filled
* @return The cache object
*/
function cache(
DataTypes.ReserveData storage reserve
) internal view returns (DataTypes.ReserveCache memory) {
DataTypes.ReserveCache memory reserveCache;
reserveCache.reserveConfiguration = reserve.configuration;
reserveCache.reserveFactor = reserveCache
.reserveConfiguration
.getReserveFactor();
reserveCache.currLiquidityIndex = reserveCache
.nextLiquidityIndex = reserve.liquidityIndex;
reserveCache.currVariableBorrowIndex = reserveCache
.nextVariableBorrowIndex = reserve.variableBorrowIndex;
reserveCache.currLiquidityRate = reserve.currentLiquidityRate;
reserveCache.currVariableBorrowRate = reserve.currentVariableBorrowRate;
reserveCache.aTokenAddress = reserve.aTokenAddress;
reserveCache.stableDebtTokenAddress = reserve.stableDebtTokenAddress;
reserveCache.variableDebtTokenAddress = reserve
.variableDebtTokenAddress;
reserveCache.reserveLastUpdateTimestamp = reserve.lastUpdateTimestamp;
reserveCache.currScaledVariableDebt = reserveCache
.nextScaledVariableDebt = IVariableDebtToken(
reserveCache.variableDebtTokenAddress
).scaledTotalSupply();
(
reserveCache.currPrincipalStableDebt,
reserveCache.currTotalStableDebt,
reserveCache.currAvgStableBorrowRate,
reserveCache.stableDebtLastUpdateTimestamp
) = IStableDebtToken(reserveCache.stableDebtTokenAddress)
.getSupplyData();
// by default the actions are considered as not affecting the debt balances.
// if the action involves mint/burn of debt, the cache needs to be updated
reserveCache.nextTotalStableDebt = reserveCache.currTotalStableDebt;
reserveCache.nextAvgStableBorrowRate = reserveCache
.currAvgStableBorrowRate;
return reserveCache;
}
}// SPDX-License-Identifier: BUSL-1.1
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.10;
import {IERC20} from "../../../dependencies/openzeppelin/contracts/IERC20.sol";
import {Address} from "../../../dependencies/openzeppelin/contracts/Address.sol";
import {GPv2SafeERC20} from "../../../dependencies/gnosis/contracts/GPv2SafeERC20.sol";
import {IReserveInterestRateStrategy} from "../../../interfaces/IReserveInterestRateStrategy.sol";
import {IStableDebtToken} from "../../../interfaces/IStableDebtToken.sol";
import {IScaledBalanceToken} from "../../../interfaces/IScaledBalanceToken.sol";
import {IPriceOracleGetter} from "../../../interfaces/IPriceOracleGetter.sol";
import {IAToken} from "../../../interfaces/IAToken.sol";
import {IPriceOracleSentinel} from "../../../interfaces/IPriceOracleSentinel.sol";
import {IPoolAddressesProvider} from "../../../interfaces/IPoolAddressesProvider.sol";
import {IAccessControl} from "../../../dependencies/openzeppelin/contracts/IAccessControl.sol";
import {ReserveConfiguration} from "../configuration/ReserveConfiguration.sol";
import {UserConfiguration} from "../configuration/UserConfiguration.sol";
import {Errors} from "../helpers/Errors.sol";
import {WadRayMath} from "../math/WadRayMath.sol";
import {PercentageMath} from "../math/PercentageMath.sol";
import {DataTypes} from "../types/DataTypes.sol";
import {ReserveLogic} from "./ReserveLogic.sol";
import {GenericLogic} from "./GenericLogic.sol";
import {SafeCast} from "../../../dependencies/openzeppelin/contracts/SafeCast.sol";
import {IncentivizedERC20} from "../../tokenization/base/IncentivizedERC20.sol";
/**
* @title ReserveLogic library
* @author Aave
* @notice Implements functions to validate the different actions of the protocol
*/
library ValidationLogic {
using ReserveLogic for DataTypes.ReserveData;
using WadRayMath for uint256;
using PercentageMath for uint256;
using SafeCast for uint256;
using GPv2SafeERC20 for IERC20;
using ReserveConfiguration for DataTypes.ReserveConfigurationMap;
using UserConfiguration for DataTypes.UserConfigurationMap;
using Address for address;
// Factor to apply to "only-variable-debt" liquidity rate to get threshold for rebalancing, expressed in bps
// A value of 0.9e4 results in 90%
uint256 public constant REBALANCE_UP_LIQUIDITY_RATE_THRESHOLD = 0.9e4;
// Minimum health factor allowed under any circumstance
// A value of 0.95e18 results in 0.95
uint256 public constant MINIMUM_HEALTH_FACTOR_LIQUIDATION_THRESHOLD =
0.95e18;
/**
* @dev Minimum health factor to consider a user position healthy
* A value of 1e18 results in 1
*/
uint256 public constant HEALTH_FACTOR_LIQUIDATION_THRESHOLD = 1e18;
/**
* @dev Role identifier for the role allowed to supply isolated reserves as collateral
*/
bytes32 public constant ISOLATED_COLLATERAL_SUPPLIER_ROLE =
keccak256("ISOLATED_COLLATERAL_SUPPLIER");
/**
* @notice Validates a supply action.
* @param reserveCache The cached data of the reserve
* @param amount The amount to be supplied
*/
function validateSupply(
DataTypes.ReserveCache memory reserveCache,
DataTypes.ReserveData storage reserve,
uint256 amount
) internal view {
require(amount != 0, Errors.INVALID_AMOUNT);
(bool isActive, bool isFrozen, , , bool isPaused) = reserveCache
.reserveConfiguration
.getFlags();
require(isActive, Errors.RESERVE_INACTIVE);
require(!isPaused, Errors.RESERVE_PAUSED);
require(!isFrozen, Errors.RESERVE_FROZEN);
uint256 supplyCap = reserveCache.reserveConfiguration.getSupplyCap();
require(
supplyCap == 0 ||
((IAToken(reserveCache.aTokenAddress).scaledTotalSupply() +
uint256(reserve.accruedToTreasury)).rayMul(
reserveCache.nextLiquidityIndex
) + amount) <=
supplyCap *
(10 ** reserveCache.reserveConfiguration.getDecimals()),
Errors.SUPPLY_CAP_EXCEEDED
);
}
/**
* @notice Validates a withdraw action.
* @param reserveCache The cached data of the reserve
* @param amount The amount to be withdrawn
* @param userBalance The balance of the user
*/
function validateWithdraw(
DataTypes.ReserveCache memory reserveCache,
uint256 amount,
uint256 userBalance
) internal pure {
require(amount != 0, Errors.INVALID_AMOUNT);
require(
amount <= userBalance,
Errors.NOT_ENOUGH_AVAILABLE_USER_BALANCE
);
(bool isActive, , , , bool isPaused) = reserveCache
.reserveConfiguration
.getFlags();
require(isActive, Errors.RESERVE_INACTIVE);
require(!isPaused, Errors.RESERVE_PAUSED);
}
struct ValidateBorrowLocalVars {
uint256 currentLtv;
uint256 collateralNeededInBaseCurrency;
uint256 userCollateralInBaseCurrency;
uint256 userDebtInBaseCurrency;
uint256 availableLiquidity;
uint256 healthFactor;
uint256 totalDebt;
uint256 totalSupplyVariableDebt;
uint256 reserveDecimals;
uint256 borrowCap;
uint256 amountInBaseCurrency;
uint256 assetUnit;
address eModePriceSource;
address siloedBorrowingAddress;
bool isActive;
bool isFrozen;
bool isPaused;
bool borrowingEnabled;
bool stableRateBorrowingEnabled;
bool siloedBorrowingEnabled;
}
/**
* @notice Validates a borrow action.
* @param reservesData The state of all the reserves
* @param reservesList The addresses of all the active reserves
* @param eModeCategories The configuration of all the efficiency mode categories
* @param params Additional params needed for the validation
*/
function validateBorrow(
mapping(address => DataTypes.ReserveData) storage reservesData,
mapping(uint256 => address) storage reservesList,
mapping(uint8 => DataTypes.EModeCategory) storage eModeCategories,
DataTypes.ValidateBorrowParams memory params
) internal view {
require(params.amount != 0, Errors.INVALID_AMOUNT);
ValidateBorrowLocalVars memory vars;
(
vars.isActive,
vars.isFrozen,
vars.borrowingEnabled,
vars.stableRateBorrowingEnabled,
vars.isPaused
) = params.reserveCache.reserveConfiguration.getFlags();
require(vars.isActive, Errors.RESERVE_INACTIVE);
require(!vars.isPaused, Errors.RESERVE_PAUSED);
require(!vars.isFrozen, Errors.RESERVE_FROZEN);
require(vars.borrowingEnabled, Errors.BORROWING_NOT_ENABLED);
require(
params.priceOracleSentinel == address(0) ||
IPriceOracleSentinel(params.priceOracleSentinel)
.isBorrowAllowed(),
Errors.PRICE_ORACLE_SENTINEL_CHECK_FAILED
);
//validate interest rate mode
require(
params.interestRateMode == DataTypes.InterestRateMode.VARIABLE ||
params.interestRateMode == DataTypes.InterestRateMode.STABLE,
Errors.INVALID_INTEREST_RATE_MODE_SELECTED
);
vars.reserveDecimals = params
.reserveCache
.reserveConfiguration
.getDecimals();
vars.borrowCap = params
.reserveCache
.reserveConfiguration
.getBorrowCap();
unchecked {
vars.assetUnit = 10 ** vars.reserveDecimals;
}
if (vars.borrowCap != 0) {
vars.totalSupplyVariableDebt = params
.reserveCache
.currScaledVariableDebt
.rayMul(params.reserveCache.nextVariableBorrowIndex);
vars.totalDebt =
params.reserveCache.currTotalStableDebt +
vars.totalSupplyVariableDebt +
params.amount;
unchecked {
require(
vars.totalDebt <= vars.borrowCap * vars.assetUnit,
Errors.BORROW_CAP_EXCEEDED
);
}
}
if (params.isolationModeActive) {
// check that the asset being borrowed is borrowable in isolation mode AND
// the total exposure is no bigger than the collateral debt ceiling
require(
params
.reserveCache
.reserveConfiguration
.getBorrowableInIsolation(),
Errors.ASSET_NOT_BORROWABLE_IN_ISOLATION
);
require(
reservesData[params.isolationModeCollateralAddress]
.isolationModeTotalDebt +
(params.amount /
10 **
(vars.reserveDecimals -
ReserveConfiguration.DEBT_CEILING_DECIMALS))
.toUint128() <=
params.isolationModeDebtCeiling,
Errors.DEBT_CEILING_EXCEEDED
);
}
if (params.userEModeCategory != 0) {
require(
params.reserveCache.reserveConfiguration.getEModeCategory() ==
params.userEModeCategory,
Errors.INCONSISTENT_EMODE_CATEGORY
);
vars.eModePriceSource = eModeCategories[params.userEModeCategory]
.priceSource;
}
(
vars.userCollateralInBaseCurrency,
vars.userDebtInBaseCurrency,
vars.currentLtv,
,
vars.healthFactor,
) = GenericLogic.calculateUserAccountData(
reservesData,
reservesList,
eModeCategories,
DataTypes.CalculateUserAccountDataParams({
userConfig: params.userConfig,
reservesCount: params.reservesCount,
user: params.userAddress,
oracle: params.oracle,
userEModeCategory: params.userEModeCategory
})
);
require(
vars.userCollateralInBaseCurrency != 0,
Errors.COLLATERAL_BALANCE_IS_ZERO
);
require(vars.currentLtv != 0, Errors.LTV_VALIDATION_FAILED);
require(
vars.healthFactor > HEALTH_FACTOR_LIQUIDATION_THRESHOLD,
Errors.HEALTH_FACTOR_LOWER_THAN_LIQUIDATION_THRESHOLD
);
vars.amountInBaseCurrency =
IPriceOracleGetter(params.oracle).getAssetPrice(
vars.eModePriceSource != address(0)
? vars.eModePriceSource
: params.asset
) *
params.amount;
unchecked {
vars.amountInBaseCurrency /= vars.assetUnit;
}
//add the current already borrowed amount to the amount requested to calculate the total collateral needed.
vars.collateralNeededInBaseCurrency = (vars.userDebtInBaseCurrency +
vars.amountInBaseCurrency).percentDiv(vars.currentLtv); //LTV is calculated in percentage
require(
vars.collateralNeededInBaseCurrency <=
vars.userCollateralInBaseCurrency,
Errors.COLLATERAL_CANNOT_COVER_NEW_BORROW
);
/**
* Following conditions need to be met if the user is borrowing at a stable rate:
* 1. Reserve must be enabled for stable rate borrowing
* 2. Users cannot borrow from the reserve if their collateral is (mostly) the same currency
* they are borrowing, to prevent abuses.
* 3. Users will be able to borrow only a portion of the total available liquidity
*/
if (params.interestRateMode == DataTypes.InterestRateMode.STABLE) {
//check if the borrow mode is stable and if stable rate borrowing is enabled on this reserve
require(
vars.stableRateBorrowingEnabled,
Errors.STABLE_BORROWING_NOT_ENABLED
);
require(
!params.userConfig.isUsingAsCollateral(
reservesData[params.asset].id
) ||
params.reserveCache.reserveConfiguration.getLtv() == 0 ||
params.amount >
IERC20(params.reserveCache.aTokenAddress).balanceOf(
params.userAddress
),
Errors.COLLATERAL_SAME_AS_BORROWING_CURRENCY
);
vars.availableLiquidity = IERC20(params.asset).balanceOf(
params.reserveCache.aTokenAddress
);
//calculate the max available loan size in stable rate mode as a percentage of the
//available liquidity
uint256 maxLoanSizeStable = vars.availableLiquidity.percentMul(
params.maxStableLoanPercent
);
require(
params.amount <= maxLoanSizeStable,
Errors.AMOUNT_BIGGER_THAN_MAX_LOAN_SIZE_STABLE
);
}
if (params.userConfig.isBorrowingAny()) {
(vars.siloedBorrowingEnabled, vars.siloedBorrowingAddress) = params
.userConfig
.getSiloedBorrowingState(reservesData, reservesList);
if (vars.siloedBorrowingEnabled) {
require(
vars.siloedBorrowingAddress == params.asset,
Errors.SILOED_BORROWING_VIOLATION
);
} else {
require(
!params
.reserveCache
.reserveConfiguration
.getSiloedBorrowing(),
Errors.SILOED_BORROWING_VIOLATION
);
}
}
}
/**
* @notice Validates a repay action.
* @param reserveCache The cached data of the reserve
* @param amountSent The amount sent for the repayment. Can be an actual value or uint(-1)
* @param interestRateMode The interest rate mode of the debt being repaid
* @param onBehalfOf The address of the user msg.sender is repaying for
* @param stableDebt The borrow balance of the user
* @param variableDebt The borrow balance of the user
*/
function validateRepay(
DataTypes.ReserveCache memory reserveCache,
uint256 amountSent,
DataTypes.InterestRateMode interestRateMode,
address onBehalfOf,
uint256 stableDebt,
uint256 variableDebt
) internal view {
require(amountSent != 0, Errors.INVALID_AMOUNT);
require(
amountSent != type(uint256).max || msg.sender == onBehalfOf,
Errors.NO_EXPLICIT_AMOUNT_TO_REPAY_ON_BEHALF
);
(bool isActive, , , , bool isPaused) = reserveCache
.reserveConfiguration
.getFlags();
require(isActive, Errors.RESERVE_INACTIVE);
require(!isPaused, Errors.RESERVE_PAUSED);
require(
(stableDebt != 0 &&
interestRateMode == DataTypes.InterestRateMode.STABLE) ||
(variableDebt != 0 &&
interestRateMode == DataTypes.InterestRateMode.VARIABLE),
Errors.NO_DEBT_OF_SELECTED_TYPE
);
}
/**
* @notice Validates a swap of borrow rate mode.
* @param reserve The reserve state on which the user is swapping the rate
* @param reserveCache The cached data of the reserve
* @param userConfig The user reserves configuration
* @param stableDebt The stable debt of the user
* @param variableDebt The variable debt of the user
* @param currentRateMode The rate mode of the debt being swapped
*/
function validateSwapRateMode(
DataTypes.ReserveData storage reserve,
DataTypes.ReserveCache memory reserveCache,
DataTypes.UserConfigurationMap storage userConfig,
uint256 stableDebt,
uint256 variableDebt,
DataTypes.InterestRateMode currentRateMode
) internal view {
(
bool isActive,
bool isFrozen,
,
bool stableRateEnabled,
bool isPaused
) = reserveCache.reserveConfiguration.getFlags();
require(isActive, Errors.RESERVE_INACTIVE);
require(!isPaused, Errors.RESERVE_PAUSED);
require(!isFrozen, Errors.RESERVE_FROZEN);
if (currentRateMode == DataTypes.InterestRateMode.STABLE) {
require(stableDebt != 0, Errors.NO_OUTSTANDING_STABLE_DEBT);
} else if (currentRateMode == DataTypes.InterestRateMode.VARIABLE) {
require(variableDebt != 0, Errors.NO_OUTSTANDING_VARIABLE_DEBT);
/**
* user wants to swap to stable, before swapping we need to ensure that
* 1. stable borrow rate is enabled on the reserve
* 2. user is not trying to abuse the reserve by supplying
* more collateral than he is borrowing, artificially lowering
* the interest rate, borrowing at variable, and switching to stable
*/
require(stableRateEnabled, Errors.STABLE_BORROWING_NOT_ENABLED);
require(
!userConfig.isUsingAsCollateral(reserve.id) ||
reserveCache.reserveConfiguration.getLtv() == 0 ||
stableDebt + variableDebt >
IERC20(reserveCache.aTokenAddress).balanceOf(msg.sender),
Errors.COLLATERAL_SAME_AS_BORROWING_CURRENCY
);
} else {
revert(Errors.INVALID_INTEREST_RATE_MODE_SELECTED);
}
}
/**
* @notice Validates a stable borrow rate rebalance action.
* @dev Rebalancing is accepted when depositors are earning <= 90% of their earnings in pure supply/demand market (variable rate only)
* For this to be the case, there has to be quite large stable debt with an interest rate below the current variable rate.
* @param reserve The reserve state on which the user is getting rebalanced
* @param reserveCache The cached state of the reserve
* @param reserveAddress The address of the reserve
*/
function validateRebalanceStableBorrowRate(
DataTypes.ReserveData storage reserve,
DataTypes.ReserveCache memory reserveCache,
address reserveAddress
) internal view {
(bool isActive, , , , bool isPaused) = reserveCache
.reserveConfiguration
.getFlags();
require(isActive, Errors.RESERVE_INACTIVE);
require(!isPaused, Errors.RESERVE_PAUSED);
uint256 totalDebt = IERC20(reserveCache.stableDebtTokenAddress)
.totalSupply() +
IERC20(reserveCache.variableDebtTokenAddress).totalSupply();
(
uint256 liquidityRateVariableDebtOnly,
,
) = IReserveInterestRateStrategy(reserve.interestRateStrategyAddress)
.calculateInterestRates(
DataTypes.CalculateInterestRatesParams({
unbacked: reserve.unbacked,
liquidityAdded: 0,
liquidityTaken: 0,
totalStableDebt: 0,
totalVariableDebt: totalDebt,
averageStableBorrowRate: 0,
reserveFactor: reserveCache.reserveFactor,
reserve: reserveAddress,
aToken: reserveCache.aTokenAddress
})
);
require(
reserveCache.currLiquidityRate <=
liquidityRateVariableDebtOnly.percentMul(
REBALANCE_UP_LIQUIDITY_RATE_THRESHOLD
),
Errors.INTEREST_RATE_REBALANCE_CONDITIONS_NOT_MET
);
}
/**
* @notice Validates the action of setting an asset as collateral.
* @param reserveCache The cached data of the reserve
* @param userBalance The balance of the user
*/
function validateSetUseReserveAsCollateral(
DataTypes.ReserveCache memory reserveCache,
uint256 userBalance
) internal pure {
require(userBalance != 0, Errors.UNDERLYING_BALANCE_ZERO);
(bool isActive, , , , bool isPaused) = reserveCache
.reserveConfiguration
.getFlags();
require(isActive, Errors.RESERVE_INACTIVE);
require(!isPaused, Errors.RESERVE_PAUSED);
}
/**
* @notice Validates a flashloan action.
* @param reservesData The state of all the reserves
* @param assets The assets being flash-borrowed
* @param amounts The amounts for each asset being borrowed
*/
function validateFlashloan(
mapping(address => DataTypes.ReserveData) storage reservesData,
address[] memory assets,
uint256[] memory amounts
) internal view {
require(
assets.length == amounts.length,
Errors.INCONSISTENT_FLASHLOAN_PARAMS
);
for (uint256 i = 0; i < assets.length; i++) {
validateFlashloanSimple(reservesData[assets[i]]);
}
}
/**
* @notice Validates a flashloan action.
* @param reserve The state of the reserve
*/
function validateFlashloanSimple(
DataTypes.ReserveData storage reserve
) internal view {
DataTypes.ReserveConfigurationMap memory configuration = reserve
.configuration;
require(!configuration.getPaused(), Errors.RESERVE_PAUSED);
require(configuration.getActive(), Errors.RESERVE_INACTIVE);
require(configuration.getFlashLoanEnabled(), Errors.FLASHLOAN_DISABLED);
}
struct ValidateLiquidationCallLocalVars {
bool collateralReserveActive;
bool collateralReservePaused;
bool principalReserveActive;
bool principalReservePaused;
bool isCollateralEnabled;
}
/**
* @notice Validates the liquidation action.
* @param userConfig The user configuration mapping
* @param collateralReserve The reserve data of the collateral
* @param params Additional parameters needed for the validation
*/
function validateLiquidationCall(
DataTypes.UserConfigurationMap storage userConfig,
DataTypes.ReserveData storage collateralReserve,
DataTypes.ValidateLiquidationCallParams memory params
) internal view {
ValidateLiquidationCallLocalVars memory vars;
(
vars.collateralReserveActive,
,
,
,
vars.collateralReservePaused
) = collateralReserve.configuration.getFlags();
(
vars.principalReserveActive,
,
,
,
vars.principalReservePaused
) = params.debtReserveCache.reserveConfiguration.getFlags();
require(
vars.collateralReserveActive && vars.principalReserveActive,
Errors.RESERVE_INACTIVE
);
require(
!vars.collateralReservePaused && !vars.principalReservePaused,
Errors.RESERVE_PAUSED
);
require(
params.priceOracleSentinel == address(0) ||
params.healthFactor <
MINIMUM_HEALTH_FACTOR_LIQUIDATION_THRESHOLD ||
IPriceOracleSentinel(params.priceOracleSentinel)
.isLiquidationAllowed(),
Errors.PRICE_ORACLE_SENTINEL_CHECK_FAILED
);
require(
params.healthFactor < HEALTH_FACTOR_LIQUIDATION_THRESHOLD,
Errors.HEALTH_FACTOR_NOT_BELOW_THRESHOLD
);
vars.isCollateralEnabled =
collateralReserve.configuration.getLiquidationThreshold() != 0 &&
userConfig.isUsingAsCollateral(collateralReserve.id);
//if collateral isn't enabled as collateral by user, it cannot be liquidated
require(
vars.isCollateralEnabled,
Errors.COLLATERAL_CANNOT_BE_LIQUIDATED
);
require(
params.totalDebt != 0,
Errors.SPECIFIED_CURRENCY_NOT_BORROWED_BY_USER
);
}
/**
* @notice Validates the health factor of a user.
* @param reservesData The state of all the reserves
* @param reservesList The addresses of all the active reserves
* @param eModeCategories The configuration of all the efficiency mode categories
* @param userConfig The state of the user for the specific reserve
* @param user The user to validate health factor of
* @param userEModeCategory The users active efficiency mode category
* @param reservesCount The number of available reserves
* @param oracle The price oracle
*/
function validateHealthFactor(
mapping(address => DataTypes.ReserveData) storage reservesData,
mapping(uint256 => address) storage reservesList,
mapping(uint8 => DataTypes.EModeCategory) storage eModeCategories,
DataTypes.UserConfigurationMap memory userConfig,
address user,
uint8 userEModeCategory,
uint256 reservesCount,
address oracle
) internal view returns (uint256, bool) {
(, , , , uint256 healthFactor, bool hasZeroLtvCollateral) = GenericLogic
.calculateUserAccountData(
reservesData,
reservesList,
eModeCategories,
DataTypes.CalculateUserAccountDataParams({
userConfig: userConfig,
reservesCount: reservesCount,
user: user,
oracle: oracle,
userEModeCategory: userEModeCategory
})
);
require(
healthFactor >= HEALTH_FACTOR_LIQUIDATION_THRESHOLD,
Errors.HEALTH_FACTOR_LOWER_THAN_LIQUIDATION_THRESHOLD
);
return (healthFactor, hasZeroLtvCollateral);
}
/**
* @notice Validates the health factor of a user and the ltv of the asset being withdrawn.
* @param reservesData The state of all the reserves
* @param reservesList The addresses of all the active reserves
* @param eModeCategories The configuration of all the efficiency mode categories
* @param userConfig The state of the user for the specific reserve
* @param asset The asset for which the ltv will be validated
* @param from The user from which the aTokens are being transferred
* @param reservesCount The number of available reserves
* @param oracle The price oracle
* @param userEModeCategory The users active efficiency mode category
*/
function validateHFAndLtv(
mapping(address => DataTypes.ReserveData) storage reservesData,
mapping(uint256 => address) storage reservesList,
mapping(uint8 => DataTypes.EModeCategory) storage eModeCategories,
DataTypes.UserConfigurationMap memory userConfig,
address asset,
address from,
uint256 reservesCount,
address oracle,
uint8 userEModeCategory
) internal view {
DataTypes.ReserveData memory reserve = reservesData[asset];
(, bool hasZeroLtvCollateral) = validateHealthFactor(
reservesData,
reservesList,
eModeCategories,
userConfig,
from,
userEModeCategory,
reservesCount,
oracle
);
require(
!hasZeroLtvCollateral || reserve.configuration.getLtv() == 0,
Errors.LTV_VALIDATION_FAILED
);
}
/**
* @notice Validates a transfer action.
* @param reserve The reserve object
*/
function validateTransfer(
DataTypes.ReserveData storage reserve
) internal view {
require(!reserve.configuration.getPaused(), Errors.RESERVE_PAUSED);
}
/**
* @notice Validates a drop reserve action.
* @param reservesList The addresses of all the active reserves
* @param reserve The reserve object
* @param asset The address of the reserve's underlying asset
*/
function validateDropReserve(
mapping(uint256 => address) storage reservesList,
DataTypes.ReserveData storage reserve,
address asset
) internal view {
require(asset != address(0), Errors.ZERO_ADDRESS_NOT_VALID);
require(
reserve.id != 0 || reservesList[0] == asset,
Errors.ASSET_NOT_LISTED
);
require(
IERC20(reserve.stableDebtTokenAddress).totalSupply() == 0,
Errors.STABLE_DEBT_NOT_ZERO
);
require(
IERC20(reserve.variableDebtTokenAddress).totalSupply() == 0,
Errors.VARIABLE_DEBT_SUPPLY_NOT_ZERO
);
require(
IERC20(reserve.aTokenAddress).totalSupply() == 0 &&
reserve.accruedToTreasury == 0,
Errors.UNDERLYING_CLAIMABLE_RIGHTS_NOT_ZERO
);
}
/**
* @notice Validates the action of setting efficiency mode.
* @param reservesData The state of all the reserves
* @param reservesList The addresses of all the active reserves
* @param eModeCategories a mapping storing configurations for all efficiency mode categories
* @param userConfig the user configuration
* @param reservesCount The total number of valid reserves
* @param categoryId The id of the category
*/
function validateSetUserEMode(
mapping(address => DataTypes.ReserveData) storage reservesData,
mapping(uint256 => address) storage reservesList,
mapping(uint8 => DataTypes.EModeCategory) storage eModeCategories,
DataTypes.UserConfigurationMap memory userConfig,
uint256 reservesCount,
uint8 categoryId
) internal view {
// category is invalid if the liq threshold is not set
require(
categoryId == 0 ||
eModeCategories[categoryId].liquidationThreshold != 0,
Errors.INCONSISTENT_EMODE_CATEGORY
);
// eMode can always be enabled if the user hasn't supplied anything
if (userConfig.isEmpty()) {
return;
}
// if user is trying to set another category than default we require that
// either the user is not borrowing, or it's borrowing assets of categoryId
if (categoryId != 0) {
unchecked {
for (uint256 i = 0; i < reservesCount; i++) {
if (userConfig.isBorrowing(i)) {
DataTypes.ReserveConfigurationMap
memory configuration = reservesData[reservesList[i]]
.configuration;
require(
configuration.getEModeCategory() == categoryId,
Errors.INCONSISTENT_EMODE_CATEGORY
);
}
}
}
}
}
/**
* @notice Validates the action of activating the asset as collateral.
* @dev Only possible if the asset has non-zero LTV and the user is not in isolation mode
* @param reservesData The state of all the reserves
* @param reservesList The addresses of all the active reserves
* @param userConfig the user configuration
* @param reserveConfig The reserve configuration
* @return True if the asset can be activated as collateral, false otherwise
*/
function validateUseAsCollateral(
mapping(address => DataTypes.ReserveData) storage reservesData,
mapping(uint256 => address) storage reservesList,
DataTypes.UserConfigurationMap storage userConfig,
DataTypes.ReserveConfigurationMap memory reserveConfig
) internal view returns (bool) {
if (reserveConfig.getLtv() == 0) {
return false;
}
if (!userConfig.isUsingAsCollateralAny()) {
return true;
}
(bool isolationModeActive, , ) = userConfig.getIsolationModeState(
reservesData,
reservesList
);
return (!isolationModeActive && reserveConfig.getDebtCeiling() == 0);
}
/**
* @notice Validates if an asset should be automatically activated as collateral in the following actions: supply,
* transfer, mint unbacked, and liquidate
* @dev This is used to ensure that isolated assets are not enabled as collateral automatically
* @param reservesData The state of all the reserves
* @param reservesList The addresses of all the active reserves
* @param userConfig the user configuration
* @param reserveConfig The reserve configuration
* @return True if the asset can be activated as collateral, false otherwise
*/
function validateAutomaticUseAsCollateral(
mapping(address => DataTypes.ReserveData) storage reservesData,
mapping(uint256 => address) storage reservesList,
DataTypes.UserConfigurationMap storage userConfig,
DataTypes.ReserveConfigurationMap memory reserveConfig,
address aTokenAddress
) internal view returns (bool) {
if (reserveConfig.getDebtCeiling() != 0) {
// ensures only the ISOLATED_COLLATERAL_SUPPLIER_ROLE can enable collateral as side-effect of an action
IPoolAddressesProvider addressesProvider = IncentivizedERC20(
aTokenAddress
).POOL().ADDRESSES_PROVIDER();
if (
!IAccessControl(addressesProvider.getACLManager()).hasRole(
ISOLATED_COLLATERAL_SUPPLIER_ROLE,
msg.sender
)
) return false;
}
return
validateUseAsCollateral(
reservesData,
reservesList,
userConfig,
reserveConfig
);
}
}// SPDX-License-Identifier: BUSL-1.1
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
import {WadRayMath} from "./WadRayMath.sol";
/**
* @title MathUtils library
* @author Aave
* @notice Provides functions to perform linear and compounded interest calculations
*/
library MathUtils {
using WadRayMath for uint256;
/// @dev Ignoring leap years
uint256 internal constant SECONDS_PER_YEAR = 365 days;
/**
* @dev Function to calculate the interest accumulated using a linear interest rate formula
* @param rate The interest rate, in ray
* @param lastUpdateTimestamp The timestamp of the last update of the interest
* @return The interest rate linearly accumulated during the timeDelta, in ray
*/
function calculateLinearInterest(
uint256 rate,
uint40 lastUpdateTimestamp
) internal view returns (uint256) {
//solium-disable-next-line
uint256 result = rate *
(block.timestamp - uint256(lastUpdateTimestamp));
unchecked {
result = result / SECONDS_PER_YEAR;
}
return WadRayMath.RAY + result;
}
/**
* @dev Function to calculate the interest using a compounded interest rate formula
* To avoid expensive exponentiation, the calculation is performed using a binomial approximation:
*
* (1+x)^n = 1+n*x+[n/2*(n-1)]*x^2+[n/6*(n-1)*(n-2)*x^3...
*
* The approximation slightly underpays liquidity providers and undercharges borrowers, with the advantage of great
* gas cost reductions. The whitepaper contains reference to the approximation and a table showing the margin of
* error per different time periods
*
* @param rate The interest rate, in ray
* @param lastUpdateTimestamp The timestamp of the last update of the interest
* @return The interest rate compounded during the timeDelta, in ray
*/
function calculateCompoundedInterest(
uint256 rate,
uint40 lastUpdateTimestamp,
uint256 currentTimestamp
) internal pure returns (uint256) {
//solium-disable-next-line
uint256 exp = currentTimestamp - uint256(lastUpdateTimestamp);
if (exp == 0) {
return WadRayMath.RAY;
}
uint256 expMinusOne;
uint256 expMinusTwo;
uint256 basePowerTwo;
uint256 basePowerThree;
unchecked {
expMinusOne = exp - 1;
expMinusTwo = exp > 2 ? exp - 2 : 0;
basePowerTwo =
rate.rayMul(rate) /
(SECONDS_PER_YEAR * SECONDS_PER_YEAR);
basePowerThree = basePowerTwo.rayMul(rate) / SECONDS_PER_YEAR;
}
uint256 secondTerm = exp * expMinusOne * basePowerTwo;
unchecked {
secondTerm /= 2;
}
uint256 thirdTerm = exp * expMinusOne * expMinusTwo * basePowerThree;
unchecked {
thirdTerm /= 6;
}
return
WadRayMath.RAY +
(rate * exp) /
SECONDS_PER_YEAR +
secondTerm +
thirdTerm;
}
/**
* @dev Calculates the compounded interest between the timestamp of the last update and the current block timestamp
* @param rate The interest rate (in ray)
* @param lastUpdateTimestamp The timestamp from which the interest accumulation needs to be calculated
* @return The interest rate compounded between lastUpdateTimestamp and current block timestamp, in ray
*/
function calculateCompoundedInterest(
uint256 rate,
uint40 lastUpdateTimestamp
) internal view returns (uint256) {
return
calculateCompoundedInterest(
rate,
lastUpdateTimestamp,
block.timestamp
);
}
}// SPDX-License-Identifier: BUSL-1.1
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
/**
* @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. If a value is >=.5, will be rounded up, otherwise rounded down.
*/
library PercentageMath {
// Maximum percentage factor (100.00%)
uint256 internal constant PERCENTAGE_FACTOR = 1e4;
// Half percentage factor (50.00%)
uint256 internal constant HALF_PERCENTAGE_FACTOR = 0.5e4;
/**
* @notice Executes a percentage multiplication
* @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
* @param value The value of which the percentage needs to be calculated
* @param percentage The percentage of the value to be calculated
* @return result value percentmul percentage
*/
function percentMul(
uint256 value,
uint256 percentage
) internal pure returns (uint256 result) {
// to avoid overflow, value <= (type(uint256).max - HALF_PERCENTAGE_FACTOR) / percentage
assembly {
if iszero(
or(
iszero(percentage),
iszero(
gt(
value,
div(sub(not(0), HALF_PERCENTAGE_FACTOR), percentage)
)
)
)
) {
revert(0, 0)
}
result := div(
add(mul(value, percentage), HALF_PERCENTAGE_FACTOR),
PERCENTAGE_FACTOR
)
}
}
/**
* @notice Executes a percentage division
* @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
* @param value The value of which the percentage needs to be calculated
* @param percentage The percentage of the value to be calculated
* @return result value percentdiv percentage
*/
function percentDiv(
uint256 value,
uint256 percentage
) internal pure returns (uint256 result) {
// to avoid overflow, value <= (type(uint256).max - halfPercentage) / PERCENTAGE_FACTOR
assembly {
if or(
iszero(percentage),
iszero(
iszero(
gt(
value,
div(
sub(not(0), div(percentage, 2)),
PERCENTAGE_FACTOR
)
)
)
)
) {
revert(0, 0)
}
result := div(
add(mul(value, PERCENTAGE_FACTOR), div(percentage, 2)),
percentage
)
}
}
}// SPDX-License-Identifier: BUSL-1.1
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
/**
* @title WadRayMath library
* @author Aave
* @notice Provides functions to perform calculations with Wad and Ray units
* @dev Provides mul and div function for wads (decimal numbers with 18 digits of precision) and rays (decimal numbers
* with 27 digits of precision)
* @dev Operations are rounded. If a value is >=.5, will be rounded up, otherwise rounded down.
*/
library WadRayMath {
// HALF_WAD and HALF_RAY expressed with extended notation as constant with operations are not supported in Yul assembly
uint256 internal constant WAD = 1e18;
uint256 internal constant HALF_WAD = 0.5e18;
uint256 internal constant RAY = 1e27;
uint256 internal constant HALF_RAY = 0.5e27;
uint256 internal constant WAD_RAY_RATIO = 1e9;
/**
* @dev Multiplies two wad, rounding half up to the nearest wad
* @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
* @param a Wad
* @param b Wad
* @return c = a*b, in wad
*/
function wadMul(uint256 a, uint256 b) internal pure returns (uint256 c) {
// to avoid overflow, a <= (type(uint256).max - HALF_WAD) / b
assembly {
if iszero(
or(iszero(b), iszero(gt(a, div(sub(not(0), HALF_WAD), b))))
) {
revert(0, 0)
}
c := div(add(mul(a, b), HALF_WAD), WAD)
}
}
/**
* @dev Divides two wad, rounding half up to the nearest wad
* @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
* @param a Wad
* @param b Wad
* @return c = a/b, in wad
*/
function wadDiv(uint256 a, uint256 b) internal pure returns (uint256 c) {
// to avoid overflow, a <= (type(uint256).max - halfB) / WAD
assembly {
if or(
iszero(b),
iszero(iszero(gt(a, div(sub(not(0), div(b, 2)), WAD))))
) {
revert(0, 0)
}
c := div(add(mul(a, WAD), div(b, 2)), b)
}
}
/**
* @notice Multiplies two ray, rounding half up to the nearest ray
* @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
* @param a Ray
* @param b Ray
* @return c = a raymul b
*/
function rayMul(uint256 a, uint256 b) internal pure returns (uint256 c) {
// to avoid overflow, a <= (type(uint256).max - HALF_RAY) / b
assembly {
if iszero(
or(iszero(b), iszero(gt(a, div(sub(not(0), HALF_RAY), b))))
) {
revert(0, 0)
}
c := div(add(mul(a, b), HALF_RAY), RAY)
}
}
/**
* @notice Divides two ray, rounding half up to the nearest ray
* @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
* @param a Ray
* @param b Ray
* @return c = a raydiv b
*/
function rayDiv(uint256 a, uint256 b) internal pure returns (uint256 c) {
// to avoid overflow, a <= (type(uint256).max - halfB) / RAY
assembly {
if or(
iszero(b),
iszero(iszero(gt(a, div(sub(not(0), div(b, 2)), RAY))))
) {
revert(0, 0)
}
c := div(add(mul(a, RAY), div(b, 2)), b)
}
}
/**
* @dev Casts ray down to wad
* @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
* @param a Ray
* @return b = a converted to wad, rounded half up to the nearest wad
*/
function rayToWad(uint256 a) internal pure returns (uint256 b) {
assembly {
b := div(a, WAD_RAY_RATIO)
let remainder := mod(a, WAD_RAY_RATIO)
if iszero(lt(remainder, div(WAD_RAY_RATIO, 2))) {
b := add(b, 1)
}
}
}
/**
* @dev Converts wad up to ray
* @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
* @param a Wad
* @return b = a converted in ray
*/
function wadToRay(uint256 a) internal pure returns (uint256 b) {
// to avoid overflow, b/WAD_RAY_RATIO == a
assembly {
b := mul(a, WAD_RAY_RATIO)
if iszero(eq(div(b, WAD_RAY_RATIO), a)) {
revert(0, 0)
}
}
}
}// SPDX-License-Identifier: BUSL-1.1
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.0;
library DataTypes {
struct ReserveData {
//stores the reserve configuration
ReserveConfigurationMap configuration;
//the liquidity index. Expressed in ray
uint128 liquidityIndex;
//the current supply rate. Expressed in ray
uint128 currentLiquidityRate;
//variable borrow index. Expressed in ray
uint128 variableBorrowIndex;
//the current variable borrow rate. Expressed in ray
uint128 currentVariableBorrowRate;
//the current stable borrow rate. Expressed in ray
uint128 currentStableBorrowRate;
//timestamp of last update
uint40 lastUpdateTimestamp;
//the id of the reserve. Represents the position in the list of the active reserves
uint16 id;
//aToken address
address aTokenAddress;
//stableDebtToken address
address stableDebtTokenAddress;
//variableDebtToken address
address variableDebtTokenAddress;
//address of the interest rate strategy
address interestRateStrategyAddress;
//the current treasury balance, scaled
uint128 accruedToTreasury;
//the outstanding unbacked aTokens minted through the bridging feature
uint128 unbacked;
//the outstanding debt borrowed against this asset in isolation mode
uint128 isolationModeTotalDebt;
}
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: asset is paused
//bit 61: borrowing in isolation mode is enabled
//bit 62: siloed borrowing enabled
//bit 63: flashloaning enabled
//bit 64-79: reserve factor
//bit 80-115 borrow cap in whole tokens, borrowCap == 0 => no cap
//bit 116-151 supply cap in whole tokens, supplyCap == 0 => no cap
//bit 152-167 liquidation protocol fee
//bit 168-175 eMode category
//bit 176-211 unbacked mint cap in whole tokens, unbackedMintCap == 0 => minting disabled
//bit 212-251 debt ceiling for isolation mode with (ReserveConfiguration::DEBT_CEILING_DECIMALS) decimals
//bit 252-255 unused
uint256 data;
}
struct UserConfigurationMap {
/**
* @dev Bitmap of the users collaterals and borrows. It is divided in pairs of bits, one pair per asset.
* The first bit indicates if an asset is used as collateral by the user, the second whether an
* asset is borrowed by the user.
*/
uint256 data;
}
struct EModeCategory {
// each eMode category has a custom ltv and liquidation threshold
uint16 ltv;
uint16 liquidationThreshold;
uint16 liquidationBonus;
// each eMode category may or may not have a custom oracle to override the individual assets price oracles
address priceSource;
string label;
}
enum InterestRateMode {
NONE,
STABLE,
VARIABLE
}
struct ReserveCache {
uint256 currScaledVariableDebt;
uint256 nextScaledVariableDebt;
uint256 currPrincipalStableDebt;
uint256 currAvgStableBorrowRate;
uint256 currTotalStableDebt;
uint256 nextAvgStableBorrowRate;
uint256 nextTotalStableDebt;
uint256 currLiquidityIndex;
uint256 nextLiquidityIndex;
uint256 currVariableBorrowIndex;
uint256 nextVariableBorrowIndex;
uint256 currLiquidityRate;
uint256 currVariableBorrowRate;
uint256 reserveFactor;
ReserveConfigurationMap reserveConfiguration;
address aTokenAddress;
address stableDebtTokenAddress;
address variableDebtTokenAddress;
uint40 reserveLastUpdateTimestamp;
uint40 stableDebtLastUpdateTimestamp;
}
struct ExecuteLiquidationCallParams {
uint256 reservesCount;
uint256 debtToCover;
address collateralAsset;
address debtAsset;
address user;
bool receiveAToken;
address priceOracle;
uint8 userEModeCategory;
address priceOracleSentinel;
}
struct ExecuteSupplyParams {
address asset;
uint256 amount;
address onBehalfOf;
uint16 referralCode;
}
struct ExecuteBorrowParams {
address asset;
address user;
address onBehalfOf;
uint256 amount;
InterestRateMode interestRateMode;
uint16 referralCode;
bool releaseUnderlying;
uint256 maxStableRateBorrowSizePercent;
uint256 reservesCount;
address oracle;
uint8 userEModeCategory;
address priceOracleSentinel;
}
struct ExecuteRepayParams {
address asset;
uint256 amount;
InterestRateMode interestRateMode;
address onBehalfOf;
bool useATokens;
}
struct ExecuteWithdrawParams {
address asset;
uint256 amount;
address to;
uint256 reservesCount;
address oracle;
uint8 userEModeCategory;
}
struct ExecuteSetUserEModeParams {
uint256 reservesCount;
address oracle;
uint8 categoryId;
}
struct FinalizeTransferParams {
address asset;
address from;
address to;
uint256 amount;
uint256 balanceFromBefore;
uint256 balanceToBefore;
uint256 reservesCount;
address oracle;
uint8 fromEModeCategory;
}
struct FlashloanParams {
address receiverAddress;
address[] assets;
uint256[] amounts;
uint256[] interestRateModes;
address onBehalfOf;
bytes params;
uint16 referralCode;
uint256 flashLoanPremiumToProtocol;
uint256 flashLoanPremiumTotal;
uint256 maxStableRateBorrowSizePercent;
uint256 reservesCount;
address addressesProvider;
uint8 userEModeCategory;
bool isAuthorizedFlashBorrower;
}
struct FlashloanSimpleParams {
address receiverAddress;
address asset;
uint256 amount;
bytes params;
uint16 referralCode;
uint256 flashLoanPremiumToProtocol;
uint256 flashLoanPremiumTotal;
}
struct FlashLoanRepaymentParams {
uint256 amount;
uint256 totalPremium;
uint256 flashLoanPremiumToProtocol;
address asset;
address receiverAddress;
uint16 referralCode;
}
struct CalculateUserAccountDataParams {
UserConfigurationMap userConfig;
uint256 reservesCount;
address user;
address oracle;
uint8 userEModeCategory;
}
struct ValidateBorrowParams {
ReserveCache reserveCache;
UserConfigurationMap userConfig;
address asset;
address userAddress;
uint256 amount;
InterestRateMode interestRateMode;
uint256 maxStableLoanPercent;
uint256 reservesCount;
address oracle;
uint8 userEModeCategory;
address priceOracleSentinel;
bool isolationModeActive;
address isolationModeCollateralAddress;
uint256 isolationModeDebtCeiling;
}
struct ValidateLiquidationCallParams {
ReserveCache debtReserveCache;
uint256 totalDebt;
uint256 healthFactor;
address priceOracleSentinel;
}
struct CalculateInterestRatesParams {
uint256 unbacked;
uint256 liquidityAdded;
uint256 liquidityTaken;
uint256 totalStableDebt;
uint256 totalVariableDebt;
uint256 averageStableBorrowRate;
uint256 reserveFactor;
address reserve;
address aToken;
}
struct InitReserveParams {
address asset;
address aTokenAddress;
address stableDebtAddress;
address variableDebtAddress;
address interestRateStrategyAddress;
uint16 reservesCount;
uint16 maxNumberReserves;
}
}// SPDX-License-Identifier: BUSL-1.1
/* ———————————————————————————————————————————————————————————————————————————————— *
* _____ ______ ______ __ __ __ __ ______ __ __ *
* /\ __-. /\__ _\ /\ == \ /\ \ /\ "-.\ \ /\ \ /\__ _\ /\ \_\ \ *
* \ \ \/\ \ \/_/\ \/ \ \ __< \ \ \ \ \ \-. \ \ \ \ \/_/\ \/ \ \____ \ *
* \ \____- \ \_\ \ \_\ \_\ \ \_\ \ \_\\"\_\ \ \_\ \ \_\ \/\_____\ *
* \/____/ \/_/ \/_/ /_/ \/_/ \/_/ \/_/ \/_/ \/_/ \/_____/ *
* *
* ————————————————————————————————— dtrinity.org ————————————————————————————————— *
* *
* ▲ *
* ▲ ▲ *
* *
* ———————————————————————————————————————————————————————————————————————————————— *
* dTRINITY Protocol: https://github.com/dtrinity *
* ———————————————————————————————————————————————————————————————————————————————— */
pragma solidity ^0.8.10;
import {Context} from "../../../dependencies/openzeppelin/contracts/Context.sol";
import {IERC20} from "../../../dependencies/openzeppelin/contracts/IERC20.sol";
import {IERC20Detailed} from "../../../dependencies/openzeppelin/contracts/IERC20Detailed.sol";
import {SafeCast} from "../../../dependencies/openzeppelin/contracts/SafeCast.sol";
import {WadRayMath} from "../../libraries/math/WadRayMath.sol";
import {Errors} from "../../libraries/helpers/Errors.sol";
import {IAaveIncentivesController} from "../../../interfaces/IAaveIncentivesController.sol";
import {IPoolAddressesProvider} from "../../../interfaces/IPoolAddressesProvider.sol";
import {IPool} from "../../../interfaces/IPool.sol";
import {IACLManager} from "../../../interfaces/IACLManager.sol";
/**
* @title IncentivizedERC20
* @author Aave, inspired by the Openzeppelin ERC20 implementation
* @notice Basic ERC20 implementation
*/
abstract contract IncentivizedERC20 is Context, IERC20Detailed {
using WadRayMath for uint256;
using SafeCast for uint256;
/**
* @dev Only pool admin can call functions marked by this modifier.
*/
modifier onlyPoolAdmin() {
IACLManager aclManager = IACLManager(
_addressesProvider.getACLManager()
);
require(
aclManager.isPoolAdmin(msg.sender),
Errors.CALLER_NOT_POOL_ADMIN
);
_;
}
/**
* @dev Only pool can call functions marked by this modifier.
*/
modifier onlyPool() {
require(_msgSender() == address(POOL), Errors.CALLER_MUST_BE_POOL);
_;
}
/**
* @dev UserState - additionalData is a flexible field.
* ATokens and VariableDebtTokens use this field store the index of the
* user's last supply/withdrawal/borrow/repayment. StableDebtTokens use
* this field to store the user's stable rate.
*/
struct UserState {
uint128 balance;
uint128 additionalData;
}
// Map of users address and their state data (userAddress => userStateData)
mapping(address => UserState) internal _userState;
// Map of allowances (delegator => delegatee => allowanceAmount)
mapping(address => mapping(address => uint256)) private _allowances;
uint256 internal _totalSupply;
string private _name;
string private _symbol;
uint8 private _decimals;
IAaveIncentivesController internal _incentivesController;
IPoolAddressesProvider internal immutable _addressesProvider;
IPool public immutable POOL;
/**
* @dev Constructor.
* @param pool The reference to the main Pool contract
* @param tokenName The name of the token
* @param tokenSymbol The symbol of the token
* @param tokenDecimals The number of decimals of the token
*/
constructor(
IPool pool,
string memory tokenName,
string memory tokenSymbol,
uint8 tokenDecimals
) {
_addressesProvider = pool.ADDRESSES_PROVIDER();
_name = tokenName;
_symbol = tokenSymbol;
_decimals = tokenDecimals;
POOL = pool;
}
/// @inheritdoc IERC20Detailed
function name() public view override returns (string memory) {
return _name;
}
/// @inheritdoc IERC20Detailed
function symbol() external view override returns (string memory) {
return _symbol;
}
/// @inheritdoc IERC20Detailed
function decimals() external view override returns (uint8) {
return _decimals;
}
/// @inheritdoc IERC20
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/// @inheritdoc IERC20
function balanceOf(
address account
) public view virtual override returns (uint256) {
return _userState[account].balance;
}
/**
* @notice Returns the address of the Incentives Controller contract
* @return The address of the Incentives Controller
*/
function getIncentivesController()
external
view
virtual
returns (IAaveIncentivesController)
{
return _incentivesController;
}
/**
* @notice Sets a new Incentives Controller
* @param controller the new Incentives controller
*/
function setIncentivesController(
IAaveIncentivesController controller
) external onlyPoolAdmin {
_incentivesController = controller;
}
/// @inheritdoc IERC20
function transfer(
address recipient,
uint256 amount
) external virtual override returns (bool) {
uint128 castAmount = amount.toUint128();
_transfer(_msgSender(), recipient, castAmount);
return true;
}
/// @inheritdoc IERC20
function allowance(
address owner,
address spender
) external view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/// @inheritdoc IERC20
function approve(
address spender,
uint256 amount
) external virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/// @inheritdoc IERC20
function transferFrom(
address sender,
address recipient,
uint256 amount
) external virtual override returns (bool) {
uint128 castAmount = amount.toUint128();
_approve(
sender,
_msgSender(),
_allowances[sender][_msgSender()] - castAmount
);
_transfer(sender, recipient, castAmount);
return true;
}
/**
* @notice Increases the allowance of spender to spend _msgSender() tokens
* @param spender The user allowed to spend on behalf of _msgSender()
* @param addedValue The amount being added to the allowance
* @return `true`
*/
function increaseAllowance(
address spender,
uint256 addedValue
) external virtual returns (bool) {
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender] + addedValue
);
return true;
}
/**
* @notice Decreases the allowance of spender to spend _msgSender() tokens
* @param spender The user allowed to spend on behalf of _msgSender()
* @param subtractedValue The amount being subtracted to the allowance
* @return `true`
*/
function decreaseAllowance(
address spender,
uint256 subtractedValue
) external virtual returns (bool) {
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender] - subtractedValue
);
return true;
}
/**
* @notice Transfers tokens between two users and apply incentives if defined.
* @param sender The source address
* @param recipient The destination address
* @param amount The amount getting transferred
*/
function _transfer(
address sender,
address recipient,
uint128 amount
) internal virtual {
uint128 oldSenderBalance = _userState[sender].balance;
_userState[sender].balance = oldSenderBalance - amount;
uint128 oldRecipientBalance = _userState[recipient].balance;
_userState[recipient].balance = oldRecipientBalance + amount;
IAaveIncentivesController incentivesControllerLocal = _incentivesController;
if (address(incentivesControllerLocal) != address(0)) {
uint256 currentTotalSupply = _totalSupply;
incentivesControllerLocal.handleAction(
sender,
currentTotalSupply,
oldSenderBalance
);
if (sender != recipient) {
incentivesControllerLocal.handleAction(
recipient,
currentTotalSupply,
oldRecipientBalance
);
}
}
}
/**
* @notice Approve `spender` to use `amount` of `owner`s balance
* @param owner The address owning the tokens
* @param spender The address approved for spending
* @param amount The amount of tokens to approve spending of
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @notice Update the name of the token
* @param newName The new name for the token
*/
function _setName(string memory newName) internal {
_name = newName;
}
/**
* @notice Update the symbol for the token
* @param newSymbol The new symbol for the token
*/
function _setSymbol(string memory newSymbol) internal {
_symbol = newSymbol;
}
/**
* @notice Update the number of decimals for the token
* @param newDecimals The new number of decimals for the token
*/
function _setDecimals(uint8 newDecimals) internal {
_decimals = newDecimals;
}
}{
"evmVersion": "paris",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs",
"useLiteralContent": true
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": [],
"viaIR": true,
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
}
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"reserve","type":"address"},{"indexed":false,"internalType":"uint256","name":"liquidityRate","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"stableBorrowRate","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"variableBorrowRate","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"liquidityIndex","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"variableBorrowIndex","type":"uint256"}],"name":"ReserveDataUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"reserve","type":"address"},{"indexed":true,"internalType":"address","name":"user","type":"address"}],"name":"ReserveUsedAsCollateralDisabled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"reserve","type":"address"},{"indexed":true,"internalType":"address","name":"user","type":"address"}],"name":"ReserveUsedAsCollateralEnabled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"reserve","type":"address"},{"indexed":false,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"address","name":"onBehalfOf","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":true,"internalType":"uint16","name":"referralCode","type":"uint16"}],"name":"Supply","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"reserve","type":"address"},{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Withdraw","type":"event"}]Contract Creation Code
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0x2D3f5739096478DbCF3DF74941861b8d156d6F3E
Net Worth in USD
$0.00
Net Worth in FRAX
0
Multichain Portfolio | 35 Chains
| Chain | Token | Portfolio % | Price | Amount | Value |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.