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Merge branch 'master' into feat/uniswap-adapter-flashloan

Browse Source 
# Conflicts:
#	helpers/contracts-helpers.ts
#	test/__setup.spec.ts
#	test/helpers/make-suite.ts
This commit is contained in:
Gerardo Nardelli 2020-10-27 09:26:43 -03:00
commit 723e3f82a6
37 changed files with 480 additions and 3394 deletions
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2
buidler.config.ts
View File

@ -11,7 +11,7 @@ usePlugin('buidler-typechain');
usePlugin('solidity-coverage');
usePlugin('@nomiclabs/buidler-waffle');
usePlugin('@nomiclabs/buidler-etherscan');
//usePlugin('buidler-gas-reporter');
usePlugin('buidler-gas-reporter');
const SKIP_LOAD = process.env.SKIP_LOAD === 'true';
const DEFAULT_BLOCK_GAS_LIMIT = 10000000;

16
contracts/configuration/LendingPoolAddressesProviderRegistry.sol
View File

@ -36,13 +36,15 @@ contract LendingPoolAddressesProviderRegistry is Ownable, ILendingPoolAddressesP
* @return the list of addressesProviders
**/
function getAddressesProvidersList() external override view returns (address[] memory) {
uint256 maxLength = _addressesProvidersList.length;
address[] memory addressesProvidersList = _addressesProvidersList;
uint256 maxLength = addressesProvidersList.length;
address[] memory activeProviders = new address[](maxLength);
for (uint256 i = 0; i < _addressesProvidersList.length; i++) {
if (_addressesProviders[_addressesProvidersList[i]] > 0) {
activeProviders[i] = _addressesProvidersList[i];
for (uint256 i = 0; i < maxLength; i++) {
if (_addressesProviders[addressesProvidersList[i]] > 0) {
activeProviders[i] = addressesProvidersList[i];
}
}
@ -54,6 +56,8 @@ contract LendingPoolAddressesProviderRegistry is Ownable, ILendingPoolAddressesP
* @param provider the pool address to be registered
**/
function registerAddressesProvider(address provider, uint256 id) external override onlyOwner {
require(id != 0, Errors.INVALID_ADDRESSES_PROVIDER_ID);
_addressesProviders[provider] = id;
_addToAddressesProvidersList(provider);
emit AddressesProviderRegistered(provider);
@ -74,7 +78,9 @@ contract LendingPoolAddressesProviderRegistry is Ownable, ILendingPoolAddressesP
* @param provider the pool address to be added
**/
function _addToAddressesProvidersList(address provider) internal {
for (uint256 i = 0; i < _addressesProvidersList.length; i++) {
uint256 providersCount = _addressesProvidersList.length;
for (uint256 i = 0; i < providersCount; i++) {
if (_addressesProvidersList[i] == provider) {
return;
}

6
contracts/flashloan/interfaces/IFlashLoanReceiver.sol
View File

@ -9,9 +9,9 @@ pragma solidity ^0.6.8;
**/
interface IFlashLoanReceiver {
function executeOperation(
address reserve,
uint256 amount,
uint256 fee,
address[] calldata assets,
uint256[] calldata amounts,
uint256[] calldata premiums,
bytes calldata params
) external returns (bool);
}

72
contracts/interfaces/ILendingPool.sol
View File

@ -99,27 +99,35 @@ interface ILendingPool {
/**
* @dev emitted when a flashloan is executed
* @param target the address of the flashLoanReceiver
* @param reserve the address of the reserve
* @param amount the amount requested
* @param totalPremium the total fee on the amount
* @param assets the address of the assets being flashborrowed
* @param amounts the amount requested
* @param premiums the total fee on the amount
* @param referralCode the referral code of the caller
**/
event FlashLoan(
address indexed target,
address indexed reserve,
uint256 amount,
uint256 totalPremium,
uint256 mode,
address[] assets,
uint256[] amounts,
uint256[] premiums,
uint16 referralCode
);
/**
* @dev these events are not emitted directly by the LendingPool
* but they are declared here as the LendingPoolCollateralManager
* is executed using a delegateCall().
* This allows to have the events in the generated ABI for LendingPool.
**/
/**
* @dev emitted when a borrower is liquidated
* @dev Emitted when the pause is triggered.
*/
event Paused();
/**
* @dev Emitted when the pause is lifted.
*/
event Unpaused();
/**
* @dev emitted when a borrower is liquidated. Thos evemt is emitted directly by the LendingPool
* but it's declared here as the LendingPoolCollateralManager
* is executed using a delegateCall().
* This allows to have the events in the generated ABI for LendingPool.
* @param collateral the address of the collateral being liquidated
* @param principal the address of the reserve
* @param user the address of the user being liquidated
@ -137,15 +145,28 @@ interface ILendingPool {
address liquidator,
bool receiveAToken
);
/**
* @dev Emitted when the pause is triggered.
*/
event Paused();
/**
* @dev Emitted when the pause is lifted.
*/
event Unpaused();
* @dev Emitted when the state of a reserve is updated. NOTE: This event is actually declared
* in the ReserveLogic library and emitted in the updateInterestRates() function. Since the function is internal,
* the event will actually be fired by the LendingPool contract. The event is therefore replicated here so it
* gets added to the LendingPool ABI
* @param reserve the address of the reserve
* @param liquidityRate the new liquidity rate
* @param stableBorrowRate the new stable borrow rate
* @param variableBorrowRate the new variable borrow rate
* @param liquidityIndex the new liquidity index
* @param variableBorrowIndex the new variable borrow index
**/
event ReserveDataUpdated(
address indexed reserve,
uint256 liquidityRate,
uint256 stableBorrowRate,
uint256 averageStableBorrowRate,
uint256 variableBorrowRate,
uint256 liquidityIndex,
uint256 variableBorrowIndex
);
/**
* @dev deposits The underlying asset into the reserve. A corresponding amount of the overlying asset (aTokens)
@ -264,16 +285,17 @@ interface ILendingPool {
* as long as the amount taken plus a fee is returned. NOTE There are security concerns for developers of flashloan receiver contracts
* that must be kept into consideration. For further details please visit https://developers.aave.com
* @param receiver The address of the contract receiving the funds. The receiver should implement the IFlashLoanReceiver interface.
* @param reserve the address of the principal reserve
* @param amount the amount requested for this flashloan
* @param assets the address of the principal reserve
* @param amounts the amount requested for this flashloan
* @param mode the flashloan mode
* @param params a bytes array to be sent to the flashloan executor
* @param referralCode the referral code of the caller
**/
function flashLoan(
address receiver,
address reserve,
uint256 amount,
uint256 debtType,
address[] calldata assets,
uint256[] calldata amounts,
uint256 mode,
bytes calldata params,
uint16 referralCode
) external;

2
contracts/lendingpool/DefaultReserveInterestRateStrategy.sol
View File

@ -162,7 +162,7 @@ contract DefaultReserveInterestRateStrategy is IReserveInterestRateStrategy {
_stableRateSlope1.rayMul(utilizationRate.rayDiv(OPTIMAL_UTILIZATION_RATE))
);
vars.currentVariableBorrowRate = _baseVariableBorrowRate.add(
utilizationRate.rayDiv(OPTIMAL_UTILIZATION_RATE).rayMul(_variableRateSlope1)
utilizationRate.rayMul(_variableRateSlope1).rayDiv(OPTIMAL_UTILIZATION_RATE)
);
}

135
contracts/lendingpool/LendingPool.sol
View File

@ -157,7 +157,7 @@ contract LendingPool is VersionedInitializable, ILendingPool, LendingPoolStorage
IAToken(aToken).burn(msg.sender, msg.sender, amountToWithdraw, reserve.liquidityIndex);
emit Withdraw(asset, msg.sender, amount);
emit Withdraw(asset, msg.sender, amountToWithdraw);
}
/**
@ -262,15 +262,6 @@ contract LendingPool is VersionedInitializable, ILendingPool, LendingPoolStorage
ReserveLogic.InterestRateMode interestRateMode = ReserveLogic.InterestRateMode(rateMode);
//default to max amount
uint256 paybackAmount = interestRateMode == ReserveLogic.InterestRateMode.STABLE
? stableDebt
: variableDebt;
if (amount != type(uint256).max && amount < paybackAmount) {
paybackAmount = amount;
}
ValidationLogic.validateRepay(
reserve,
amount,
@ -280,6 +271,15 @@ contract LendingPool is VersionedInitializable, ILendingPool, LendingPoolStorage
variableDebt
);
//default to max amount
uint256 paybackAmount = interestRateMode == ReserveLogic.InterestRateMode.STABLE
? stableDebt
: variableDebt;
if (amount < paybackAmount) {
paybackAmount = amount;
}
reserve.updateState();
//burns an equivalent amount of debt tokens
@ -356,9 +356,10 @@ contract LendingPool is VersionedInitializable, ILendingPool, LendingPoolStorage
}
/**
* @dev rebalances the stable interest rate of a user if current liquidity rate > user stable rate.
* this is regulated by Aave to ensure that the protocol is not abused, and the user is paying a fair
* rate. Anyone can call this function.
* @dev rebalances the stable interest rate of a user. Users can be rebalanced if the following conditions are satisfied:
* 1. Usage ratio is above 95%
* 2. the current deposit APY is below REBALANCE_UP_THRESHOLD * maxVariableBorrowRate, which means that too much has been
* borrowed at a stable rate and depositors are not earning enough.
* @param asset the address of the reserve
* @param user the address of the user to be rebalanced
**/
@ -373,7 +374,7 @@ contract LendingPool is VersionedInitializable, ILendingPool, LendingPoolStorage
uint256 stableBorrowBalance = IERC20(stableDebtToken).balanceOf(user);
//if the utilization rate is below 95%, no rebalances are needed
//if the usage ratio is below 95%, no rebalances are needed
uint256 totalBorrows = stableDebtToken
.totalSupply()
.add(variableDebtToken.totalSupply())
@ -417,7 +418,7 @@ contract LendingPool is VersionedInitializable, ILendingPool, LendingPoolStorage
/**
* @dev allows depositors to enable or disable a specific deposit as collateral.
* @param asset the address of the reserve
* @param useAsCollateral true if the user wants to user the deposit as collateral, false otherwise.
* @param useAsCollateral true if the user wants to use the deposit as collateral, false otherwise.
**/
function setUserUseReserveAsCollateral(address asset, bool useAsCollateral) external override {
_whenNotPaused();
@ -483,11 +484,15 @@ contract LendingPool is VersionedInitializable, ILendingPool, LendingPoolStorage
}
struct FlashLoanLocalVars {
uint256 premium;
uint256 amountPlusPremium;
IFlashLoanReceiver receiver;
address aTokenAddress;
address oracle;
ReserveLogic.InterestRateMode debtMode;
uint256 i;
address currentAsset;
address currentATokenAddress;
uint256 currentAmount;
uint256 currentPremium;
uint256 currentAmountPlusPremium;
}
/**
@ -495,68 +500,90 @@ contract LendingPool is VersionedInitializable, ILendingPool, LendingPoolStorage
* as long as the amount taken plus a fee is returned. NOTE There are security concerns for developers of flashloan receiver contracts
* that must be kept into consideration. For further details please visit https://developers.aave.com
* @param receiverAddress The address of the contract receiving the funds. The receiver should implement the IFlashLoanReceiver interface.
* @param asset The address of the principal reserve
* @param amount The amount requested for this flashloan
* @param assets The addresss of the assets being flashborrowed
* @param amounts The amounts requested for this flashloan for each asset
* @param mode Type of the debt to open if the flash loan is not returned. 0 -> Don't open any debt, just revert, 1 -> stable, 2 -> variable
* @param params Variadic packed params to pass to the receiver as extra information
* @param referralCode Referral code of the flash loan
**/
function flashLoan(
address receiverAddress,
address asset,
uint256 amount,
address[] calldata assets,
uint256[] calldata amounts,
uint256 mode,
bytes calldata params,
uint16 referralCode
) external override {
_whenNotPaused();
ReserveLogic.ReserveData storage reserve = _reserves[asset];
FlashLoanLocalVars memory vars;
vars.aTokenAddress = reserve.aTokenAddress;
ValidationLogic.validateFlashloan(assets, amounts, mode);
vars.premium = amount.mul(FLASHLOAN_PREMIUM_TOTAL).div(10000);
ValidationLogic.validateFlashloan(mode, vars.premium);
ReserveLogic.InterestRateMode debtMode = ReserveLogic.InterestRateMode(mode);
address[] memory aTokenAddresses = new address[](assets.length);
uint256[] memory premiums = new uint256[](assets.length);
vars.receiver = IFlashLoanReceiver(receiverAddress);
vars.debtMode = ReserveLogic.InterestRateMode(mode);
//transfer funds to the receiver
IAToken(vars.aTokenAddress).transferUnderlyingTo(receiverAddress, amount);
for (vars.i = 0; vars.i < assets.length; vars.i++) {
aTokenAddresses[vars.i] = _reserves[assets[vars.i]].aTokenAddress;
premiums[vars.i] = amounts[vars.i].mul(FLASHLOAN_PREMIUM_TOTAL).div(10000);
//transfer funds to the receiver
IAToken(aTokenAddresses[vars.i]).transferUnderlyingTo(receiverAddress, amounts[vars.i]);
}
//execute action of the receiver
require(
vars.receiver.executeOperation(asset, amount, vars.premium, params),
vars.receiver.executeOperation(assets, amounts, premiums, params),
Errors.INVALID_FLASH_LOAN_EXECUTOR_RETURN
);
vars.amountPlusPremium = amount.add(vars.premium);
for (vars.i = 0; vars.i < assets.length; vars.i++) {
vars.currentAsset = assets[vars.i];
vars.currentAmount = amounts[vars.i];
vars.currentPremium = premiums[vars.i];
vars.currentATokenAddress = aTokenAddresses[vars.i];
if (debtMode == ReserveLogic.InterestRateMode.NONE) {
IERC20(asset).safeTransferFrom(receiverAddress, vars.aTokenAddress, vars.amountPlusPremium);
vars.currentAmountPlusPremium = vars.currentAmount.add(vars.currentPremium);
reserve.updateState();
reserve.cumulateToLiquidityIndex(IERC20(vars.aTokenAddress).totalSupply(), vars.premium);
reserve.updateInterestRates(asset, vars.aTokenAddress, vars.premium, 0);
if (vars.debtMode == ReserveLogic.InterestRateMode.NONE) {
_reserves[vars.currentAsset].updateState();
_reserves[vars.currentAsset].cumulateToLiquidityIndex(
IERC20(vars.currentATokenAddress).totalSupply(),
vars.currentPremium
);
_reserves[vars.currentAsset].updateInterestRates(
vars.currentAsset,
vars.currentATokenAddress,
vars.currentPremium,
0
);
emit FlashLoan(receiverAddress, asset, amount, vars.premium, referralCode);
} else {
//if the user didn't choose to return the funds, the system checks if there
//is enough collateral and eventually open a position
_executeBorrow(
ExecuteBorrowParams(
asset,
msg.sender,
msg.sender,
vars.amountPlusPremium,
mode,
vars.aTokenAddress,
referralCode,
false
)
);
IERC20(vars.currentAsset).safeTransferFrom(
receiverAddress,
vars.currentATokenAddress,
vars.currentAmountPlusPremium
);
} else {
//if the user didn't choose to return the funds, the system checks if there
//is enough collateral and eventually open a position
_executeBorrow(
ExecuteBorrowParams(
vars.currentAsset,
msg.sender,
msg.sender,
vars.currentAmount,
mode,
vars.currentATokenAddress,
referralCode,
false
)
);
}
emit FlashLoan(receiverAddress, mode, assets, amounts, premiums, referralCode);
}
}

18
contracts/lendingpool/LendingPoolCollateralManager.sol
View File

@ -194,13 +194,6 @@ contract LendingPoolCollateralManager is VersionedInitializable, LendingPoolStor
//update the principal reserve
principalReserve.updateState();
principalReserve.updateInterestRates(
principal,
principalReserve.aTokenAddress,
vars.actualAmountToLiquidate,
0
);
if (vars.userVariableDebt >= vars.actualAmountToLiquidate) {
IVariableDebtToken(principalReserve.variableDebtTokenAddress).burn(
user,
@ -223,6 +216,13 @@ contract LendingPoolCollateralManager is VersionedInitializable, LendingPoolStor
);
}
principalReserve.updateInterestRates(
principal,
principalReserve.aTokenAddress,
vars.actualAmountToLiquidate,
0
);
//if liquidator reclaims the aToken, he receives the equivalent atoken amount
if (receiveAToken) {
vars.collateralAtoken.transferOnLiquidation(user, msg.sender, vars.maxCollateralToLiquidate);
@ -306,8 +306,8 @@ contract LendingPoolCollateralManager is VersionedInitializable, LendingPoolStor
.principalCurrencyPrice
.mul(purchaseAmount)
.mul(10**vars.collateralDecimals)
.div(vars.collateralPrice.mul(10**vars.principalDecimals))
.percentMul(vars.liquidationBonus);
.percentMul(vars.liquidationBonus)
.div(vars.collateralPrice.mul(10**vars.principalDecimals));
if (vars.maxAmountCollateralToLiquidate > userCollateralBalance) {
collateralAmount = userCollateralBalance;

26
contracts/lendingpool/LendingPoolConfigurator.sol
View File

@ -10,6 +10,7 @@ import {
import {ReserveConfiguration} from '../libraries/configuration/ReserveConfiguration.sol';
import {ILendingPoolAddressesProvider} from '../interfaces/ILendingPoolAddressesProvider.sol';
import {ILendingPool} from '../interfaces/ILendingPool.sol';
import {ITokenConfiguration} from '../tokenization/interfaces/ITokenConfiguration.sol';
import {IERC20Detailed} from '../dependencies/openzeppelin/contracts/IERC20Detailed.sol';
import {Errors} from '../libraries/helpers/Errors.sol';
import {ReserveLogic} from '../libraries/logic/ReserveLogic.sol';
@ -200,7 +201,6 @@ contract LendingPoolConfigurator is VersionedInitializable {
/**
* @dev initializes a reserve
* @param asset the address of the reserve to be initialized
* @param aTokenImpl the address of the aToken contract implementation
* @param stableDebtTokenImpl the address of the stable debt token contract
* @param variableDebtTokenImpl the address of the variable debt token contract
@ -208,13 +208,35 @@ contract LendingPoolConfigurator is VersionedInitializable {
* @param interestRateStrategyAddress the address of the interest rate strategy contract for this reserve
**/
function initReserve(
address asset,
address aTokenImpl,
address stableDebtTokenImpl,
address variableDebtTokenImpl,
uint8 underlyingAssetDecimals,
address interestRateStrategyAddress
) public onlyAaveAdmin {
address asset = ITokenConfiguration(aTokenImpl).UNDERLYING_ASSET_ADDRESS();
require(
address(pool) == ITokenConfiguration(aTokenImpl).POOL(),
Errors.INVALID_ATOKEN_POOL_ADDRESS
);
require(
address(pool) == ITokenConfiguration(stableDebtTokenImpl).POOL(),
Errors.INVALID_STABLE_DEBT_TOKEN_POOL_ADDRESS
);
require(
address(pool) == ITokenConfiguration(variableDebtTokenImpl).POOL(),
Errors.INVALID_VARIABLE_DEBT_TOKEN_POOL_ADDRESS
);
require(
asset == ITokenConfiguration(stableDebtTokenImpl).UNDERLYING_ASSET_ADDRESS(),
Errors.INVALID_STABLE_DEBT_TOKEN_UNDERLYING_ADDRESS
);
require(
asset == ITokenConfiguration(variableDebtTokenImpl).UNDERLYING_ASSET_ADDRESS(),
Errors.INVALID_VARIABLE_DEBT_TOKEN_UNDERLYING_ADDRESS
);
address aTokenProxyAddress = _initTokenWithProxy(aTokenImpl, underlyingAssetDecimals);
address stableDebtTokenProxyAddress = _initTokenWithProxy(

11
contracts/libraries/helpers/Errors.sol
View File

@ -45,13 +45,14 @@ library Errors {
string public constant INVALID_EQUAL_ASSETS_TO_SWAP = '56';
string public constant NO_MORE_RESERVES_ALLOWED = '59';
string public constant INVALID_FLASH_LOAN_EXECUTOR_RETURN = '60';
string public constant INCONSISTENT_FLASHLOAN_PARAMS = '69';
// require error messages - aToken - DebtTokens
string public constant CALLER_MUST_BE_LENDING_POOL = '28'; // 'The caller of this function must be a lending pool'
string public constant CANNOT_GIVE_ALLOWANCE_TO_HIMSELF = '30'; // 'User cannot give allowance to himself'
string public constant TRANSFER_AMOUNT_NOT_GT_0 = '31'; // 'Transferred amount needs to be greater than zero'
string public constant INVALID_MINT_AMOUNT = '53'; //invalid amount to mint
string public constant INVALID_BURN_AMOUNT = '54'; //invalid amount to burn
string public constant INVALID_MINT_AMOUNT = '61'; //invalid amount to mint
string public constant INVALID_BURN_AMOUNT = '62'; //invalid amount to burn
// require error messages - ReserveLogic
string public constant RESERVE_ALREADY_INITIALIZED = '34'; // 'Reserve has already been initialized'
@ -64,9 +65,15 @@ library Errors {
//require error messages - LendingPoolConfiguration
string public constant CALLER_NOT_AAVE_ADMIN = '35'; // 'The caller must be the aave admin'
string public constant RESERVE_LIQUIDITY_NOT_0 = '36'; // 'The liquidity of the reserve needs to be 0'
string public constant INVALID_ATOKEN_POOL_ADDRESS = '63'; // the lending pool in the aToken implementation is not configured correctly
string public constant INVALID_STABLE_DEBT_TOKEN_POOL_ADDRESS = '64'; // the lending pool in the stable debt token implementation is not configured correctly
string public constant INVALID_VARIABLE_DEBT_TOKEN_POOL_ADDRESS = '65'; // the lending pool in the variable debt token implementation is not configured correctly
string public constant INVALID_STABLE_DEBT_TOKEN_UNDERLYING_ADDRESS = '66'; // the underlying asset in the stable debt token implementation is not configured correctly
string public constant INVALID_VARIABLE_DEBT_TOKEN_UNDERLYING_ADDRESS = '67'; // the underlying asset in the variable debt token implementation is not configured correctly
//require error messages - LendingPoolAddressesProviderRegistry
string public constant PROVIDER_NOT_REGISTERED = '37'; // 'Provider is not registered'
string public constant INVALID_ADDRESSES_PROVIDER_ID = '68'; // the addresses provider id needs to be greater than 0
//return error messages - LendingPoolCollateralManager
string public constant HEALTH_FACTOR_NOT_BELOW_THRESHOLD = '38'; // 'Health factor is not below the threshold'

1
contracts/libraries/logic/GenericLogic.sol
View File

@ -25,7 +25,6 @@ library GenericLogic {
using UserConfiguration for UserConfiguration.Map;
uint256 public constant HEALTH_FACTOR_LIQUIDATION_THRESHOLD = 1 ether;
uint256 public constant HEALTH_FACTOR_CRITICAL_THRESHOLD = 0.98 ether;
struct balanceDecreaseAllowedLocalVars {
uint256 decimals;

4
contracts/libraries/logic/ReserveLogic.sol
View File

@ -359,7 +359,9 @@ library ReserveLogic {
vars.amountToMint = vars.totalDebtAccrued.percentMul(vars.reserveFactor);
IAToken(reserve.aTokenAddress).mintToTreasury(vars.amountToMint, newLiquidityIndex);
if (vars.amountToMint != 0) {
IAToken(reserve.aTokenAddress).mintToTreasury(vars.amountToMint, newLiquidityIndex);
}
}
/**

11
contracts/libraries/logic/ValidationLogic.sol
View File

@ -327,11 +327,16 @@ library ValidationLogic {
/**
* @dev validates a flashloan action
* @param mode the flashloan mode (0 = classic flashloan, 1 = open a stable rate loan, 2 = open a variable rate loan)
* @param premium the premium paid on the flashloan
* @param assets the assets being flashborrowed
* @param amounts the amounts for each asset being borrowed
**/
function validateFlashloan(uint256 mode, uint256 premium) internal pure {
require(premium > 0, Errors.REQUESTED_AMOUNT_TOO_SMALL);
function validateFlashloan(
address[] memory assets,
uint256[] memory amounts,
uint256 mode
) internal pure {
require(mode <= uint256(ReserveLogic.InterestRateMode.VARIABLE), Errors.INVALID_FLASHLOAN_MODE);
require(assets.length == amounts.length, Errors.INCONSISTENT_FLASHLOAN_PARAMS);
}
/**

5
contracts/libraries/math/MathUtils.sol
View File

@ -8,6 +8,7 @@ library MathUtils {
using SafeMath for uint256;
using WadRayMath for uint256;
/// @dev Ignoring leap years
uint256 internal constant SECONDS_PER_YEAR = 365 days;
/**
@ -25,9 +26,7 @@ library MathUtils {
//solium-disable-next-line
uint256 timeDifference = block.timestamp.sub(uint256(lastUpdateTimestamp));
uint256 timeDelta = timeDifference.wadToRay().rayDiv(SECONDS_PER_YEAR.wadToRay());
return rate.rayMul(timeDelta).add(WadRayMath.ray());
return (rate.mul(timeDifference) / SECONDS_PER_YEAR).add(WadRayMath.ray());
}
/**

32
contracts/libraries/math/WadRayMath.sol
View File

@ -58,13 +58,9 @@ library WadRayMath {
return 0;
}
uint256 result = a * b;
uint256 result = a * b + halfWAD;
require(result / a == b, Errors.MULTIPLICATION_OVERFLOW);
result += halfWAD;
require(result >= halfWAD, Errors.ADDITION_OVERFLOW);
require(result >= halfWAD && (result - halfWAD) / a == b, Errors.MULTIPLICATION_OVERFLOW);
return result / WAD;
}
@ -80,13 +76,9 @@ library WadRayMath {
uint256 halfB = b / 2;
uint256 result = a * WAD;
uint256 result = a * WAD + halfB;
require(result / WAD == a, Errors.MULTIPLICATION_OVERFLOW);
result += halfB;
require(result >= halfB, Errors.ADDITION_OVERFLOW);
require(result >= halfB && (result - halfB) / WAD == a, Errors.MULTIPLICATION_OVERFLOW);
return result / b;
}
@ -102,13 +94,9 @@ library WadRayMath {
return 0;
}
uint256 result = a * b;
uint256 result = a * b + halfRAY;
require(result / a == b, Errors.MULTIPLICATION_OVERFLOW);
result += halfRAY;
require(result >= halfRAY, Errors.ADDITION_OVERFLOW);
require(result >= halfRAY && (result - halfRAY) / a == b, Errors.MULTIPLICATION_OVERFLOW);
return result / RAY;
}
@ -124,13 +112,9 @@ library WadRayMath {
uint256 halfB = b / 2;
uint256 result = a * RAY;
uint256 result = a * RAY + halfB;
require(result / RAY == a, Errors.MULTIPLICATION_OVERFLOW);
result += halfB;
require(result >= halfB, Errors.ADDITION_OVERFLOW);
require(result >= halfB && (result - halfB) / RAY == a, Errors.MULTIPLICATION_OVERFLOW);
return result / b;
}

43
contracts/mocks/flashloan/MockFlashLoanReceiver.sol
View File

@ -14,8 +14,8 @@ contract MockFlashLoanReceiver is FlashLoanReceiverBase {
ILendingPoolAddressesProvider internal _provider;
event ExecutedWithFail(address _reserve, uint256 _amount, uint256 _fee);
event ExecutedWithSuccess(address _reserve, uint256 _amount, uint256 _fee);
event ExecutedWithFail(address[] _assets, uint256[] _amounts, uint256[] _premiums);
event ExecutedWithSuccess(address[] _assets, uint256[] _amounts, uint256[] _premiums);
bool _failExecution;
uint256 _amountToApprove;
@ -44,33 +44,40 @@ contract MockFlashLoanReceiver is FlashLoanReceiverBase {
}
function executeOperation(
address reserve,
uint256 amount,
uint256 fee,
address[] memory assets,
uint256[] memory amounts,
uint256[] memory premiums,
bytes memory params
) public override returns (bool) {
params;
//mint to this contract the specific amount
MintableERC20 token = MintableERC20(reserve);
//check the contract has the specified balance
require(amount <= IERC20(reserve).balanceOf(address(this)), 'Invalid balance for the contract');
uint256 amountToReturn = (_amountToApprove != 0) ? _amountToApprove : amount.add(fee);
if (_failExecution) {
emit ExecutedWithFail(reserve, amount, fee);
emit ExecutedWithFail(assets, amounts, premiums);
return !_simulateEOA;
}
//execution does not fail - mint tokens and return them to the _destination
//note: if the reserve is eth, the mock contract must receive at least _fee ETH before calling executeOperation
for (uint256 i = 0; i < assets.length; i++) {
//mint to this contract the specific amount
MintableERC20 token = MintableERC20(assets[i]);
token.mint(fee);
//check the contract has the specified balance
require(
amounts[i] <= IERC20(assets[i]).balanceOf(address(this)),
'Invalid balance for the contract'
);
IERC20(reserve).approve(_addressesProvider.getLendingPool(), amountToReturn);
uint256 amountToReturn = (_amountToApprove != 0)
? _amountToApprove
: amounts[i].add(premiums[i]);
//execution does not fail - mint tokens and return them to the _destination
//note: if the reserve is eth, the mock contract must receive at least _fee ETH before calling executeOperation
emit ExecutedWithSuccess(reserve, amount, fee);
token.mint(premiums[i]);
IERC20(assets[i]).approve(_addressesProvider.getLendingPool(), amountToReturn);
}
emit ExecutedWithSuccess(assets, amounts, premiums);
return true;
}

6
contracts/tokenization/AToken.sol
View File

@ -2,7 +2,7 @@
pragma solidity ^0.6.8;
import {IncentivizedERC20} from './IncentivizedERC20.sol';
import {LendingPool} from '../lendingpool/LendingPool.sol';
import {ILendingPool} from '../interfaces/ILendingPool.sol';
import {WadRayMath} from '../libraries/math/WadRayMath.sol';
import {Errors} from '../libraries/helpers/Errors.sol';
import {VersionedInitializable} from '../libraries/aave-upgradeability/VersionedInitializable.sol';
@ -32,7 +32,7 @@ contract AToken is VersionedInitializable, IncentivizedERC20, IAToken {
uint256 public constant ATOKEN_REVISION = 0x1;
address public immutable UNDERLYING_ASSET_ADDRESS;
address public immutable RESERVE_TREASURY_ADDRESS;
LendingPool public immutable POOL;
ILendingPool public immutable POOL;
/// @dev owner => next valid nonce to submit with permit()
mapping(address => uint256) public _nonces;
@ -45,7 +45,7 @@ contract AToken is VersionedInitializable, IncentivizedERC20, IAToken {
}
constructor(
LendingPool pool,
ILendingPool pool,
address underlyingAssetAddress,
address reserveTreasuryAddress,
string memory tokenName,

6
contracts/tokenization/IncentivizedERC20.sol
View File

@ -181,10 +181,10 @@ contract IncentivizedERC20 is Context, IERC20, IERC20Detailed {
_balances[recipient] = _balances[recipient].add(amount);
if (address(_incentivesController) != address(0)) {
uint256 totalSupply = _totalSupply;
_incentivesController.handleAction(sender, totalSupply, oldSenderBalance);
uint256 currentTotalSupply = _totalSupply;
_incentivesController.handleAction(sender, currentTotalSupply, oldSenderBalance);
if (sender != recipient) {
_incentivesController.handleAction(recipient, totalSupply, oldRecipientBalance);
_incentivesController.handleAction(recipient, currentTotalSupply, oldRecipientBalance);
}
}
}

22
contracts/tokenization/StableDebtToken.sol
View File

@ -128,7 +128,7 @@ contract StableDebtToken is IStableDebtToken, DebtTokenBase {
_totalSupplyTimestamp = _timestamps[user] = uint40(block.timestamp);
//calculates the updated average stable rate
_avgStableRate = vars
vars.currentAvgStableRate = _avgStableRate = vars
.currentAvgStableRate
.rayMul(vars.previousSupply.wadToRay())
.add(rate.rayMul(vars.amountInRay))
@ -139,7 +139,15 @@ contract StableDebtToken is IStableDebtToken, DebtTokenBase {
// transfer event to track balances
emit Transfer(address(0), user, amount);
emit Mint(user, amount, previousBalance, currentBalance, balanceIncrease, vars.newStableRate);
emit Mint(
user,
amount,
previousBalance,
currentBalance,
balanceIncrease,
vars.newStableRate,
vars.currentAvgStableRate
);
}
/**
@ -155,17 +163,18 @@ contract StableDebtToken is IStableDebtToken, DebtTokenBase {
) = _calculateBalanceIncrease(user);
uint256 previousSupply = totalSupply();
uint256 newStableRate = 0;
//since the total supply and each single user debt accrue separately,
//there might be accumulation errors so that the last borrower repaying
//might actually try to repay more than the available debt supply.
//in this case we simply set the total supply and the avg stable rate to 0
if (previousSupply <= amount) {
_avgStableRate = 0;
newStableRate = _avgStableRate = 0;
_totalSupply = 0;
} else {
uint256 nextSupply = _totalSupply = previousSupply.sub(amount);
_avgStableRate = _avgStableRate
newStableRate = _avgStableRate = _avgStableRate
.rayMul(previousSupply.wadToRay())
.sub(_usersData[user].rayMul(amount.wadToRay()))
.rayDiv(nextSupply.wadToRay());
@ -190,14 +199,13 @@ contract StableDebtToken is IStableDebtToken, DebtTokenBase {
// transfer event to track balances
emit Transfer(user, address(0), amount);
emit Burn(user, amount, previousBalance, currentBalance, balanceIncrease);
emit Burn(user, amount, previousBalance, currentBalance, balanceIncrease, newStableRate);
}
/**
* @dev Calculates the increase in balance since the last user interaction
* @param user The address of the user for which the interest is being accumulated
* @return The previous principal balance, the new principal balance, the balance increase
* and the new user index
* @return The previous principal balance, the new principal balance and the balance increase
**/
function _calculateBalanceIncrease(address user)
internal

5
contracts/tokenization/VariableDebtToken.sol
View File

@ -43,7 +43,7 @@ contract VariableDebtToken is DebtTokenBase, IVariableDebtToken {
return 0;
}
return scaledBalance.rayMul(POOL.getReserveNormalizedVariableDebt(UNDERLYING_ASSET));
return scaledBalance.rayMul(POOL.getReserveNormalizedVariableDebt(UNDERLYING_ASSET_ADDRESS));
}
/**
@ -102,7 +102,8 @@ contract VariableDebtToken is DebtTokenBase, IVariableDebtToken {
* @return the total supply
**/
function totalSupply() public virtual override view returns (uint256) {
return super.totalSupply().rayMul(POOL.getReserveNormalizedVariableDebt(UNDERLYING_ASSET));
return
super.totalSupply().rayMul(POOL.getReserveNormalizedVariableDebt(UNDERLYING_ASSET_ADDRESS));
}
/**

10
contracts/tokenization/base/DebtTokenBase.sol
View File

@ -15,8 +15,8 @@ import {Errors} from '../../libraries/helpers/Errors.sol';
*/
abstract contract DebtTokenBase is IncentivizedERC20, VersionedInitializable {
address internal immutable UNDERLYING_ASSET;
ILendingPool internal immutable POOL;
address public immutable UNDERLYING_ASSET_ADDRESS;
ILendingPool public immutable POOL;
mapping(address => uint256) internal _usersData;
/**
@ -39,7 +39,7 @@ abstract contract DebtTokenBase is IncentivizedERC20, VersionedInitializable {
address incentivesController
) public IncentivizedERC20(name, symbol, 18, incentivesController) {
POOL = ILendingPool(pool);
UNDERLYING_ASSET = underlyingAssetAddress;
UNDERLYING_ASSET_ADDRESS = underlyingAssetAddress;
}
/**
@ -58,10 +58,6 @@ abstract contract DebtTokenBase is IncentivizedERC20, VersionedInitializable {
_setDecimals(decimals);
}
function underlyingAssetAddress() public view returns (address) {
return UNDERLYING_ASSET;
}
/**
* @dev Being non transferrable, the debt token does not implement any of the
* standard ERC20 functions for transfer and allowance.

8
contracts/tokenization/interfaces/IStableDebtToken.sol
View File

@ -21,6 +21,7 @@ interface IStableDebtToken {
* @param currentBalance the current balance of the user
* @param balanceIncrease the debt increase since the last update
* @param newRate the rate of the debt after the minting
* @param avgStableRate the new average stable rate after the minting
**/
event Mint(
address indexed user,
@ -28,7 +29,8 @@ interface IStableDebtToken {
uint256 previousBalance,
uint256 currentBalance,
uint256 balanceIncrease,
uint256 newRate
uint256 newRate,
uint256 avgStableRate
);
/**
@ -38,13 +40,15 @@ interface IStableDebtToken {
* @param previousBalance the previous balance of the user
* @param currentBalance the current balance of the user
* @param balanceIncrease the debt increase since the last update
* @param avgStableRate the new average stable rate after the minting
**/
event Burn(
address indexed user,
uint256 amount,
uint256 previousBalance,
uint256 currentBalance,
uint256 balanceIncrease
uint256 balanceIncrease,
uint256 avgStableRate
);
/**

13
contracts/tokenization/interfaces/ITokenConfiguration.sol Normal file
View File

@ -0,0 +1,13 @@
pragma solidity ^0.6;
/**
* @title ITokenConfiguration
* @author Aave
* @dev common interface between aTokens and debt tokens to fetch the
* token configuration
**/
interface ITokenConfiguration {
function UNDERLYING_ASSET_ADDRESS() external view returns (address);
function POOL() external view returns (address);
}

40
deployed-contracts.json
View File

@ -27,8 +27,8 @@
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"kovan": {
"address": "0xd7e3C4b2CE495066dE1923c268D68A844bD7Ae13",
"deployer": "0x6b40a028d2Ab94e5f6d3793F32D326CDf724Bb1D"
"address": "0xF9a2E6D57c691f3aa5269858178a13Ef06378579",
"deployer": "0x85e4A467343c0dc4aDAB74Af84448D9c45D8ae6F"
}
},
"LendingPoolAddressesProviderRegistry": {
@ -45,8 +45,8 @@
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"kovan": {
"address": "0x83c7A0E78e8eee2108a87d7a6770f22BAcb68b5A",
"deployer": "0x6b40a028d2Ab94e5f6d3793F32D326CDf724Bb1D"
"address": "0xf3266d89e6742fAE2C35D05eD549cd4e117300a7",
"deployer": "0x85e4A467343c0dc4aDAB74Af84448D9c45D8ae6F"
}
},
"FeeProvider": {
@ -76,7 +76,7 @@
"address": "0x9Ec55627757348b322c8dD0865D704649bFa0c7b"
},
"kovan": {
"address": "0x1339f3c1FfF00D0FD8946187fdC61F0ef0fFe786"
"address": "0x1aae278bCcdb95817c7A546d752fC662F09b6DBa"
}
},
"LendingPoolDataProvider": {
@ -92,7 +92,7 @@
"address": "0x3EE716e38f21e5FC16BFDB773db24D63C637A5d8"
},
"kovan": {
"address": "0xB43CCfF1148bb5ab2104E2ee68A7c30cDEBb9A9C"
"address": "0x8E05A3054cb736258FaF4638D07058cE6e294d2C"
}
},
"PriceOracle": {
@ -173,8 +173,8 @@
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"kovan": {
"address": "0xc4e3d83AEd3D3c60Cf4b238F634014cE103F6fa1",
"deployer": "0x6b40a028d2Ab94e5f6d3793F32D326CDf724Bb1D"
"address": "0x47341CE48FfE1cbD91991578B880a18c45cdB5CA",
"deployer": "0x85e4A467343c0dc4aDAB74Af84448D9c45D8ae6F"
}
},
"LendingPoolLiquidationManager": {
@ -235,7 +235,7 @@
},
"WalletBalanceProvider": {
"buidlerevm": {
"address": "0x2cfcA5785261fbC88EFFDd46fCFc04c22525F9e4",
"address": "0xDf73fC454FA018051D4a1509e63D11530A59DE10",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"localhost": {
@ -580,8 +580,8 @@
"address": "0x2cfcA5785261fbC88EFFDd46fCFc04c22525F9e4"
},
"kovan": {
"address": "0xE4566ce19626826360f4faD941418e2849fC3685",
"deployer": "0x6b40a028d2Ab94e5f6d3793F32D326CDf724Bb1D"
"address": "0xfF28b837352d9531bAb6dFF3650D7831192117F7",
"deployer": "0x85e4A467343c0dc4aDAB74Af84448D9c45D8ae6F"
}
},
"StableDebtToken": {
@ -598,8 +598,8 @@
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"kovan": {
"address": "0x0043967C1Cf13c4Ff3Bc38109054D5a97C147B4A",
"deployer": "0x6b40a028d2Ab94e5f6d3793F32D326CDf724Bb1D"
"address": "0x0EDc241FdA0dF39EB1B9eB1236217BBe72Ab911D",
"deployer": "0x85e4A467343c0dc4aDAB74Af84448D9c45D8ae6F"
}
},
"VariableDebtToken": {
@ -616,8 +616,8 @@
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"kovan": {
"address": "0xdF75B68c75c30D177f4Dbd47cBcb5E2E4f3cf8F9",
"deployer": "0x6b40a028d2Ab94e5f6d3793F32D326CDf724Bb1D"
"address": "0x293f5BcC66762c28a5d3Bd8512a799D457F5296D",
"deployer": "0x85e4A467343c0dc4aDAB74Af84448D9c45D8ae6F"
}
},
"AToken": {
@ -634,13 +634,13 @@
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"kovan": {
"address": "0x1A23ADa7218e0a66b7368E12E379Ea88d7a68a27",
"deployer": "0x6b40a028d2Ab94e5f6d3793F32D326CDf724Bb1D"
"address": "0xf303Ae6F24C29D94E367fdb5C7aE04D32BEbF13E",
"deployer": "0x85e4A467343c0dc4aDAB74Af84448D9c45D8ae6F"
}
},
"MockAToken": {
"buidlerevm": {
"address": "0x392E5355a0e88Bd394F717227c752670fb3a8020",
"address": "0x3bDA11B584dDff7F66E0cFe1da1562c92B45db60",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"localhost": {
@ -668,7 +668,7 @@
},
"MockStableDebtToken": {
"buidlerevm": {
"address": "0x3b050AFb4ac4ACE646b31fF3639C1CD43aC31460",
"address": "0x392E5355a0e88Bd394F717227c752670fb3a8020",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"localhost": {
@ -682,7 +682,7 @@
},
"MockVariableDebtToken": {
"buidlerevm": {
"address": "0xEBAB67ee3ef604D5c250A53b4b8fcbBC6ec3007C",
"address": "0x3b050AFb4ac4ACE646b31fF3639C1CD43aC31460",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"localhost": {

2
docker-compose.yml
View File

@ -2,6 +2,8 @@ version: '3.5'
services:
contracts-env:
env_file:
- .env
build:
context: ./
working_dir: /src

16
helpers/contracts-helpers.ts
View File

@ -1,6 +1,6 @@
import {Contract, Signer, utils, ethers} from 'ethers';
import {CommonsConfig} from '../config/commons';
import {getDb, BRE} from './misc-utils';
import {getDb, BRE, waitForTx} from './misc-utils';
import {
tEthereumAddress,
eContractid,
@ -103,7 +103,7 @@ export const deployContract = async <ContractType extends Contract>(
const contract = (await (await BRE.ethers.getContractFactory(contractName)).deploy(
...args
)) as ContractType;
await waitForTx(contract.deployTransaction);
await registerContractInJsonDb(<eContractid>contractName, contract);
return contract;
};
@ -207,6 +207,7 @@ export const deployLendingPool = async (verify?: boolean) => {
);
const factory = await linkLibrariesToArtifact(lendingPoolArtifact);
const lendingPool = await factory.deploy();
await waitForTx(lendingPool.deployTransaction);
const instance = (await lendingPool.deployed()) as LendingPool;
if (verify) {
await verifyContract(eContractid.LendingPool, instance.address, []);
@ -837,7 +838,7 @@ export const initReserves = async (
stableRateSlope2,
},
] = (Object.entries(reservesParams) as [string, IReserveParams][])[reserveParamIndex];
console.log('deploy def reserve');
console.log('deploy the interest rate strategy for ', assetSymbol);
const rateStrategyContract = await deployDefaultReserveInterestRateStrategy(
[
lendingPoolAddressesProvider.address,
@ -850,7 +851,7 @@ export const initReserves = async (
verify
);
console.log('deploy stable deb totken ', assetSymbol);
console.log('deploy the stable debt totken for ', assetSymbol);
const stableDebtToken = await deployStableDebtToken(
[
`Aave stable debt bearing ${assetSymbol === 'WETH' ? 'ETH' : assetSymbol}`,
@ -862,7 +863,7 @@ export const initReserves = async (
verify
);
console.log('deploy var deb totken ', assetSymbol);
console.log('deploy the variable debt totken for ', assetSymbol);
const variableDebtToken = await deployVariableDebtToken(
[
`Aave variable debt bearing ${assetSymbol === 'WETH' ? 'ETH' : assetSymbol}`,
@ -874,7 +875,7 @@ export const initReserves = async (
verify
);
console.log('deploy a token ', assetSymbol);
console.log('deploy the aToken for ', assetSymbol);
const aToken = await deployGenericAToken(
[
lendingPool.address,
@ -894,9 +895,8 @@ export const initReserves = async (
}
}
console.log('init reserve currency ', assetSymbol);
console.log('initialize the reserve ', assetSymbol);
await lendingPoolConfigurator.initReserve(
tokenAddress,
aToken.address,
stableDebtToken.address,
variableDebtToken.address,

27
helpers/etherscan-verification.ts
View File

@ -1,13 +1,20 @@
import {exit} from 'process';
import fs from 'fs';
import globby from 'globby';
import {file} from 'tmp-promise';
import {BRE} from './misc-utils';
const listSolidityFiles = (dir: string) => globby(`${dir}/**/*.sol`);
const fatalErrors = [
`The address provided as argument contains a contract, but its bytecode`,
`Daily limit of 100 source code submissions reached`,
];
export const SUPPORTED_ETHERSCAN_NETWORKS = ['main', 'ropsten', 'kovan'];
export const getEtherscanPath = async (contractName: string) => {
const compilerInput = await BRE.run('compile:get-compiler-input');
const paths = Object.keys(compilerInput.sources);
const paths = await listSolidityFiles(BRE.config.paths.sources);
const path = paths.find((p) => p.includes(contractName));
if (!path) {
throw new Error(
@ -79,12 +86,22 @@ export const runTaskWithRetry = async (
cleanup();
} else {
cleanup();
console.error('[ERROR] Errors after all the retries, check the logs for more information.');
console.error(
'[ETHERSCAN][ERROR] Errors after all the retries, check the logs for more information.'
);
}
} catch (error) {
counter--;
console.info(`[INFO] Retrying attemps: ${counter}.`);
console.error('[ERROR]', error.message);
console.info(`[ETHERSCAN][[INFO] Retrying attemps: ${counter}.`);
console.error('[ETHERSCAN][[ERROR]', error.message);
if (fatalErrors.some((fatalError) => error.message.includes(fatalError))) {
console.error(
'[ETHERSCAN][[ERROR] Fatal error detected, skip retries and resume deployment.'
);
return;
}
await runTaskWithRetry(task, params, counter, msDelay, cleanup);
}
};

24
helpers/init-helpers.ts
View File

@ -2,6 +2,7 @@ import {iMultiPoolsAssets, IReserveParams, tEthereumAddress} from './types';
import {LendingPool} from '../types/LendingPool';
import {LendingPoolConfigurator} from '../types/LendingPoolConfigurator';
import {AaveProtocolTestHelpers} from '../types/AaveProtocolTestHelpers';
import {waitForTx} from './misc-utils';
export const enableReservesToBorrow = async (
reservesParams: iMultiPoolsAssets<IReserveParams>,
@ -29,7 +30,14 @@ export const enableReservesToBorrow = async (
continue;
}
await lendingPoolConfigurator.enableBorrowingOnReserve(tokenAddress, stableBorrowRateEnabled);
console.log('Enabling borrowing on reserve ', assetSymbol);
await waitForTx(
await lendingPoolConfigurator.enableBorrowingOnReserve(
tokenAddress,
stableBorrowRateEnabled
)
);
} catch (e) {
console.log(
`Enabling reserve for borrowings for ${assetSymbol} failed with error ${e}. Skipped.`
@ -66,11 +74,15 @@ export const enableReservesAsCollateral = async (
}
try {
await lendingPoolConfigurator.enableReserveAsCollateral(
tokenAddress,
baseLTVAsCollateral,
liquidationThreshold,
liquidationBonus
console.log(`Enabling reserve ${assetSymbol} as collateral`);
await waitForTx(
await lendingPoolConfigurator.enableReserveAsCollateral(
tokenAddress,
baseLTVAsCollateral,
liquidationThreshold,
liquidationBonus
)
);
} catch (e) {
console.log(

2
helpers/misc-utils.ts
View File

@ -41,7 +41,7 @@ export const increaseTime = async (secondsToIncrease: number) => {
await BRE.ethers.provider.send('evm_mine', []);
};
export const waitForTx = async (tx: ContractTransaction) => await tx.wait();
export const waitForTx = async (tx: ContractTransaction) => await tx.wait(1);
export const filterMapBy = (raw: {[key: string]: any}, fn: (key: string) => boolean) =>
Object.keys(raw)

2
helpers/oracles-helpers.ts
View File

@ -30,7 +30,7 @@ export const setInitialMarketRatesInRatesOracle = async (
const [, assetAddress] = (Object.entries(assetsAddresses) as [string, string][])[
assetAddressIndex
];
await lendingRateOracleInstance.setMarketBorrowRate(assetAddress, borrowRate);
await waitForTx(await lendingRateOracleInstance.setMarketBorrowRate(assetAddress, borrowRate));
console.log('added Market Borrow Rate for: ', assetSymbol);
}
};

1
helpers/types.ts
View File

@ -108,6 +108,7 @@ export enum ProtocolErrors {
//require error messages - LendingPoolAddressesProviderRegistry
PROVIDER_NOT_REGISTERED = '37', // 'Provider is not registered'
INVALID_ADDRESSES_PROVIDER_ID = '68',
//return error messages - LendingPoolCollateralManager
HEALTH_FACTOR_NOT_BELOW_THRESHOLD = '38', // 'Health factor is not below the threshold'

134
package-lock.json generated
View File

@ -2094,9 +2094,9 @@
"dev": true
},
"@types/qs": {
"version": "6.9.3",
"resolved": "https://registry.npmjs.org/@types/qs/-/qs-6.9.3.tgz",
"integrity": "sha512-7s9EQWupR1fTc2pSMtXRQ9w9gLOcrJn+h7HOXw4evxyvVqMi4f+q7d2tnFe3ng3SNHjtK+0EzGMGFUQX4/AQRA==",
"version": "6.9.5",
"resolved": "https://registry.npmjs.org/@types/qs/-/qs-6.9.5.tgz",
"integrity": "sha512-/JHkVHtx/REVG0VVToGRGH2+23hsYLHdyG+GrvoUGlGAd0ErauXDyvHtRI/7H7mzLm+tBCKA7pfcpkQ1lf58iQ==",
"dev": true
},
"@types/resolve": {
@ -2889,12 +2889,12 @@
"dev": true
},
"buidler-gas-reporter": {
"version": "0.1.3",
"resolved": "https://registry.npmjs.org/buidler-gas-reporter/-/buidler-gas-reporter-0.1.3.tgz",
"integrity": "sha512-3Q27K52iGEghJ4icDdkV/67iJiRCaiZ39E2LLCBNZgx5NvltI5Q7oR3RVyCGO/m3SZBcj418zC8p7yeyj/jFdw==",
"version": "0.1.4",
"resolved": "https://registry.npmjs.org/buidler-gas-reporter/-/buidler-gas-reporter-0.1.4.tgz",
"integrity": "sha512-objSu/tGggxKDmlpZViM9uEKRSo7vXxBsPv+vXegre1AWapJXQNfJPtBmrNvnT5Ixl8pecWSRXsfO95nJAn4yw==",
"dev": true,
"requires": {
"eth-gas-reporter": "^0.2.13"
"eth-gas-reporter": "^0.2.18"
}
},
"buidler-typechain": {
@ -4108,13 +4108,13 @@
}
},
"eth-gas-reporter": {
"version": "0.2.17",
"resolved": "https://registry.npmjs.org/eth-gas-reporter/-/eth-gas-reporter-0.2.17.tgz",
"integrity": "sha512-MsrUqeXTAFU9QEdAIdaVu+QeU1XwFsKvPDEC68iheppVR5xUP11h4SyPhSRZiGfOzXr1CfTtPM/B6wPGtt7/LA==",
"version": "0.2.18",
"resolved": "https://registry.npmjs.org/eth-gas-reporter/-/eth-gas-reporter-0.2.18.tgz",
"integrity": "sha512-P6LQ1QmU9bqU4zmd01Ws/b2EWAD5rT771U0wyJ/c+fKE6RdE9ks8KzjdR1zjosV2uilMfqVTtrBrXveCOnaTyQ==",
"dev": true,
"requires": {
"@ethersproject/abi": "^5.0.0-beta.146",
"@solidity-parser/parser": "^0.5.2",
"@solidity-parser/parser": "^0.8.0",
"cli-table3": "^0.5.0",
"colors": "^1.1.2",
"ethereumjs-util": "6.2.0",
@ -4130,6 +4130,27 @@
"sync-request": "^6.0.0"
},
"dependencies": {
"@solidity-parser/parser": {
"version": "0.8.1",
"resolved": "https://registry.npmjs.org/@solidity-parser/parser/-/parser-0.8.1.tgz",
"integrity": "sha512-DF7H6T8I4lo2IZOE2NZwt3631T8j1gjpQLjmvY2xBNK50c4ltslR4XPKwT6RkeSd4+xCAK0GHC/k7sbRDBE4Yw==",
"dev": true
},
"elliptic": {
"version": "6.5.3",
"resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.3.tgz",
"integrity": "sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==",
"dev": true,
"requires": {
"bn.js": "^4.4.0",
"brorand": "^1.0.1",
"hash.js": "^1.0.0",
"hmac-drbg": "^1.0.0",
"inherits": "^2.0.1",
"minimalistic-assert": "^1.0.0",
"minimalistic-crypto-utils": "^1.0.0"
}
},
"ethereumjs-util": {
"version": "6.2.0",
"resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.2.0.tgz",
@ -4146,37 +4167,20 @@
}
},
"ethers": {
"version": "4.0.47",
"resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.47.tgz",
"integrity": "sha512-hssRYhngV4hiDNeZmVU/k5/E8xmLG8UpcNUzg6mb7lqhgpFPH/t7nuv20RjRrEf0gblzvi2XwR5Te+V3ZFc9pQ==",
"version": "4.0.48",
"resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.48.tgz",
"integrity": "sha512-sZD5K8H28dOrcidzx9f8KYh8083n5BexIO3+SbE4jK83L85FxtpXZBCQdXb8gkg+7sBqomcLhhkU7UHL+F7I2g==",
"dev": true,
"requires": {
"aes-js": "3.0.0",
"bn.js": "^4.4.0",
"elliptic": "6.5.2",
"elliptic": "6.5.3",
"hash.js": "1.1.3",
"js-sha3": "0.5.7",
"scrypt-js": "2.0.4",
"setimmediate": "1.0.4",
"uuid": "2.0.1",
"xmlhttprequest": "1.8.0"
},
"dependencies": {
"elliptic": {
"version": "6.5.2",
"resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.2.tgz",
"integrity": "sha512-f4x70okzZbIQl/NSRLkI/+tteV/9WqL98zx+SQ69KbXxmVrmjwsNUPn/gYJJ0sHvEak24cZgHIPegRePAtA/xw==",
"dev": true,
"requires": {
"bn.js": "^4.4.0",
"brorand": "^1.0.1",
"hash.js": "^1.0.0",
"hmac-drbg": "^1.0.0",
"inherits": "^2.0.1",
"minimalistic-assert": "^1.0.0",
"minimalistic-crypto-utils": "^1.0.0"
}
}
}
},
"hash.js": {
@ -21040,18 +21044,16 @@
}
},
"globby": {
"version": "10.0.2",
"resolved": "https://registry.npmjs.org/globby/-/globby-10.0.2.tgz",
"integrity": "sha512-7dUi7RvCoT/xast/o/dLN53oqND4yk0nsHkhRgn9w65C4PofCLOoJ39iSOg+qVDdWQPIEj+eszMHQ+aLVwwQSg==",
"version": "11.0.1",
"resolved": "https://registry.npmjs.org/globby/-/globby-11.0.1.tgz",
"integrity": "sha512-iH9RmgwCmUJHi2z5o2l3eTtGBtXek1OYlHrbcxOYugyHLmAsZrPj43OtHThd62Buh/Vv6VyCBD2bdyWcGNQqoQ==",
"dev": true,
"requires": {
"@types/glob": "^7.1.1",
"array-union": "^2.1.0",
"dir-glob": "^3.0.1",
"fast-glob": "^3.0.3",
"glob": "^7.1.3",
"ignore": "^5.1.1",
"merge2": "^1.2.3",
"fast-glob": "^3.1.1",
"ignore": "^5.1.4",
"merge2": "^1.3.0",
"slash": "^3.0.0"
}
},
@ -21254,9 +21256,9 @@
},
"dependencies": {
"@types/node": {
"version": "10.17.26",
"resolved": "https://registry.npmjs.org/@types/node/-/node-10.17.26.tgz",
"integrity": "sha512-myMwkO2Cr82kirHY8uknNRHEVtn0wV3DTQfkrjx17jmkstDRZ24gNUdl8AHXVyVclTYI/bNjgTPTAWvWLqXqkw==",
"version": "10.17.43",
"resolved": "https://registry.npmjs.org/@types/node/-/node-10.17.43.tgz",
"integrity": "sha512-F7xV2kxZGb3seVP3UQt3msHcoDCtDi8WNO/UCzNLhRwaYVT4yJO1ndcV+vCTnY+jiAVqyLZq/VJbRE/AhwqEag==",
"dev": true
}
}
@ -23738,21 +23740,29 @@
}
},
"request-promise-core": {
"version": "1.1.3",
"resolved": "https://registry.npmjs.org/request-promise-core/-/request-promise-core-1.1.3.tgz",
"integrity": "sha512-QIs2+ArIGQVp5ZYbWD5ZLCY29D5CfWizP8eWnm8FoGD1TX61veauETVQbrV60662V0oFBkrDOuaBI8XgtuyYAQ==",
"version": "1.1.4",
"resolved": "https://registry.npmjs.org/request-promise-core/-/request-promise-core-1.1.4.tgz",
"integrity": "sha512-TTbAfBBRdWD7aNNOoVOBH4pN/KigV6LyapYNNlAPA8JwbovRti1E88m3sYAwsLi5ryhPKsE9APwnjFTgdUjTpw==",
"dev": true,
"requires": {
"lodash": "^4.17.15"
"lodash": "^4.17.19"
},
"dependencies": {
"lodash": {
"version": "4.17.20",
"resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.20.tgz",
"integrity": "sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==",
"dev": true
}
}
},
"request-promise-native": {
"version": "1.0.8",
"resolved": "https://registry.npmjs.org/request-promise-native/-/request-promise-native-1.0.8.tgz",
"integrity": "sha512-dapwLGqkHtwL5AEbfenuzjTYg35Jd6KPytsC2/TLkVMz8rm+tNt72MGUWT1RP/aYawMpN6HqbNGBQaRcBtjQMQ==",
"version": "1.0.9",
"resolved": "https://registry.npmjs.org/request-promise-native/-/request-promise-native-1.0.9.tgz",
"integrity": "sha512-wcW+sIUiWnKgNY0dqCpOZkUbF/I+YPi+f09JZIDa39Ec+q82CpSYniDp+ISgTTbKmnpJWASeJBPZmoxH84wt3g==",
"dev": true,
"requires": {
"request-promise-core": "1.1.3",
"request-promise-core": "1.1.4",
"stealthy-require": "^1.1.1",
"tough-cookie": "^2.3.3"
}
@ -24247,6 +24257,22 @@
"universalify": "^0.1.0"
}
},
"globby": {
"version": "10.0.2",
"resolved": "https://registry.npmjs.org/globby/-/globby-10.0.2.tgz",
"integrity": "sha512-7dUi7RvCoT/xast/o/dLN53oqND4yk0nsHkhRgn9w65C4PofCLOoJ39iSOg+qVDdWQPIEj+eszMHQ+aLVwwQSg==",
"dev": true,
"requires": {
"@types/glob": "^7.1.1",
"array-union": "^2.1.0",
"dir-glob": "^3.0.1",
"fast-glob": "^3.0.3",
"glob": "^7.1.3",
"ignore": "^5.1.1",
"merge2": "^1.2.3",
"slash": "^3.0.0"
}
},
"pify": {
"version": "4.0.1",
"resolved": "https://registry.npmjs.org/pify/-/pify-4.0.1.tgz",
@ -24732,9 +24758,9 @@
},
"dependencies": {
"@types/node": {
"version": "8.10.61",
"resolved": "https://registry.npmjs.org/@types/node/-/node-8.10.61.tgz",
"integrity": "sha512-l+zSbvT8TPRaCxL1l9cwHCb0tSqGAGcjPJFItGGYat5oCTiq1uQQKYg5m7AF1mgnEBzFXGLJ2LRmNjtreRX76Q==",
"version": "8.10.65",
"resolved": "https://registry.npmjs.org/@types/node/-/node-8.10.65.tgz",
"integrity": "sha512-xdcqtQl1g3p/49kmcj7ZixPWOcNHA1tYNz+uN0PJEcgtN6zywK74aacTnd3eFGPuBpD7kK8vowmMRkUt6jHU/Q==",
"dev": true
}
}

5
package.json
View File

@ -16,7 +16,7 @@
"aave:evm:dev:migration": "buidler aave:dev",
"aave:evm:full:migration": "buidler aave:full",
"aave:kovan:dev:migration": "npm run buidler:kovan -- aave:dev --verify",
"aave:kovan:full:migration": "npm run buidler:kovan -- aave:full",
"aave:kovan:full:migration": "npm run buidler:kovan -- aave:full --verify",
"aave:ropsten:dev:migration": "npm run buidler:ropsten -- aave:dev --verify",
"aave:ropsten:full:migration": "npm run buidler:ropsten -- aave:full --verify",
"aave:main:dev:migration": "npm run buidler:main -- aave:dev --verify",
@ -59,7 +59,7 @@
"@types/mocha": "7.0.2",
"@types/node": "14.0.5",
"bignumber.js": "9.0.0",
"buidler-gas-reporter": "^0.1.3",
"buidler-gas-reporter": "^0.1.4",
"buidler-typechain": "0.1.1",
"chai": "4.2.0",
"chai-bignumber": "3.0.0",
@ -68,6 +68,7 @@
"ethereum-waffle": "3.0.2",
"ethereumjs-util": "7.0.2",
"ethers": "5.0.8",
"globby": "^11.0.1",
"husky": "^4.2.5",
"lowdb": "1.0.0",
"prettier": "^2.0.5",

3077
test.log
View File

File diff suppressed because it is too large Load Diff

9
test/addresses-provider-registry.spec.ts
View File

@ -18,6 +18,15 @@ makeSuite('AddressesProviderRegistry', (testEnv: TestEnv) => {
);
});
it('tries to register an addresses provider with id 0', async () => {
const {users, registry} = testEnv;
const {INVALID_ADDRESSES_PROVIDER_ID} = ProtocolErrors;
await expect(registry.registerAddressesProvider(users[2].address, '0')).to.be.revertedWith(
INVALID_ADDRESSES_PROVIDER_ID
);
});
it('Registers a new mock addresses provider', async () => {
const {users, registry} = testEnv;

70
test/flashloan.spec.ts
View File

@ -48,8 +48,8 @@ makeSuite('LendingPool FlashLoan function', (testEnv: TestEnv) => {
await pool.flashLoan(
_mockFlashLoanReceiver.address,
weth.address,
ethers.utils.parseEther('0.8'),
[weth.address],
[ethers.utils.parseEther('0.8')],
0,
'0x10',
'0'
@ -77,8 +77,8 @@ makeSuite('LendingPool FlashLoan function', (testEnv: TestEnv) => {
const reserveDataBefore = await helpersContract.getReserveData(weth.address);
const txResult = await pool.flashLoan(
_mockFlashLoanReceiver.address,
weth.address,
'1000720000000000000',
[weth.address],
['1000720000000000000'],
0,
'0x10',
'0'
@ -108,8 +108,8 @@ makeSuite('LendingPool FlashLoan function', (testEnv: TestEnv) => {
.connect(caller.signer)
.flashLoan(
_mockFlashLoanReceiver.address,
weth.address,
ethers.utils.parseEther('0.8'),
[weth.address],
[ethers.utils.parseEther('0.8')],
0,
'0x10',
'0'
@ -128,8 +128,8 @@ makeSuite('LendingPool FlashLoan function', (testEnv: TestEnv) => {
.connect(caller.signer)
.flashLoan(
_mockFlashLoanReceiver.address,
weth.address,
ethers.utils.parseEther('0.8'),
[weth.address],
[ethers.utils.parseEther('0.8')],
0,
'0x10',
'0'
@ -148,8 +148,8 @@ makeSuite('LendingPool FlashLoan function', (testEnv: TestEnv) => {
.connect(caller.signer)
.flashLoan(
_mockFlashLoanReceiver.address,
weth.address,
ethers.utils.parseEther('0.8'),
[weth.address],
[ethers.utils.parseEther('0.8')],
4,
'0x10',
'0'
@ -176,8 +176,8 @@ makeSuite('LendingPool FlashLoan function', (testEnv: TestEnv) => {
.connect(caller.signer)
.flashLoan(
_mockFlashLoanReceiver.address,
weth.address,
ethers.utils.parseEther('0.8'),
[weth.address],
[ethers.utils.parseEther('0.8')],
2,
'0x10',
'0'
@ -193,22 +193,7 @@ makeSuite('LendingPool FlashLoan function', (testEnv: TestEnv) => {
const callerDebt = await wethDebtToken.balanceOf(caller.address);
expect(callerDebt.toString()).to.be.equal('800720000000000000', 'Invalid user debt');
});
it('tries to take a very small flashloan, which would result in 0 fees (revert expected)', async () => {
const {pool, weth} = testEnv;
await expect(
pool.flashLoan(
_mockFlashLoanReceiver.address,
weth.address,
'1', //1 wei loan
2,
'0x10',
'0'
)
).to.be.revertedWith(REQUESTED_AMOUNT_TOO_SMALL);
expect(callerDebt.toString()).to.be.equal('800000000000000000', 'Invalid user debt');
});
it('tries to take a flashloan that is bigger than the available liquidity (revert expected)', async () => {
@ -217,8 +202,8 @@ makeSuite('LendingPool FlashLoan function', (testEnv: TestEnv) => {
await expect(
pool.flashLoan(
_mockFlashLoanReceiver.address,
weth.address,
'1004415000000000000', //slightly higher than the available liquidity
[weth.address],
['1004415000000000000'], //slightly higher than the available liquidity
2,
'0x10',
'0'
@ -231,7 +216,7 @@ makeSuite('LendingPool FlashLoan function', (testEnv: TestEnv) => {
const {pool, deployer, weth} = testEnv;
await expect(
pool.flashLoan(deployer.address, weth.address, '1000000000000000000', 2, '0x10', '0')
pool.flashLoan(deployer.address, [weth.address], ['1000000000000000000'], 2, '0x10', '0')
).to.be.reverted;
});
@ -257,8 +242,8 @@ makeSuite('LendingPool FlashLoan function', (testEnv: TestEnv) => {
await pool.flashLoan(
_mockFlashLoanReceiver.address,
usdc.address,
flashloanAmount,
[usdc.address],
[flashloanAmount],
0,
'0x10',
'0'
@ -297,7 +282,14 @@ makeSuite('LendingPool FlashLoan function', (testEnv: TestEnv) => {
await expect(
pool
.connect(caller.signer)
.flashLoan(_mockFlashLoanReceiver.address, usdc.address, flashloanAmount, 2, '0x10', '0')
.flashLoan(
_mockFlashLoanReceiver.address,
[usdc.address],
[flashloanAmount],
2,
'0x10',
'0'
)
).to.be.revertedWith(COLLATERAL_BALANCE_IS_0);
});
@ -320,7 +312,7 @@ makeSuite('LendingPool FlashLoan function', (testEnv: TestEnv) => {
await pool
.connect(caller.signer)
.flashLoan(_mockFlashLoanReceiver.address, usdc.address, flashloanAmount, 2, '0x10', '0');
.flashLoan(_mockFlashLoanReceiver.address, [usdc.address], [flashloanAmount], 2, '0x10', '0');
const {variableDebtTokenAddress} = await helpersContract.getReserveTokensAddresses(
usdc.address
);
@ -332,7 +324,7 @@ makeSuite('LendingPool FlashLoan function', (testEnv: TestEnv) => {
const callerDebt = await usdcDebtToken.balanceOf(caller.address);
expect(callerDebt.toString()).to.be.equal('500450000', 'Invalid user debt');
expect(callerDebt.toString()).to.be.equal('500000000', 'Invalid user debt');
});
it('Caller deposits 1000 DAI as collateral, Takes a WETH flashloan with mode = 0, does not approve the transfer of the funds', async () => {
@ -355,7 +347,7 @@ makeSuite('LendingPool FlashLoan function', (testEnv: TestEnv) => {
await expect(
pool
.connect(caller.signer)
.flashLoan(_mockFlashLoanReceiver.address, weth.address, flashAmount, 0, '0x10', '0')
.flashLoan(_mockFlashLoanReceiver.address, [weth.address], [flashAmount], 0, '0x10', '0')
).to.be.revertedWith(SAFEERC20_LOWLEVEL_CALL);
});
@ -370,7 +362,7 @@ makeSuite('LendingPool FlashLoan function', (testEnv: TestEnv) => {
await pool
.connect(caller.signer)
.flashLoan(_mockFlashLoanReceiver.address, weth.address, flashAmount, 1, '0x10', '0');
.flashLoan(_mockFlashLoanReceiver.address, [weth.address], [flashAmount], 1, '0x10', '0');
const {stableDebtTokenAddress} = await helpersContract.getReserveTokensAddresses(weth.address);
@ -381,6 +373,6 @@ makeSuite('LendingPool FlashLoan function', (testEnv: TestEnv) => {
const callerDebt = await wethDebtToken.balanceOf(caller.address);
expect(callerDebt.toString()).to.be.equal('800720000000000000', 'Invalid user debt');
expect(callerDebt.toString()).to.be.equal('800000000000000000', 'Invalid user debt');
});
});

9
test/helpers/utils/calculations.ts
View File

@ -1153,11 +1153,12 @@ const calcLinearInterest = (
currentTimestamp: BigNumber,
lastUpdateTimestamp: BigNumber
) => {
const timeDifference = currentTimestamp.minus(lastUpdateTimestamp).wadToRay();
const timeDifference = currentTimestamp.minus(lastUpdateTimestamp);
const timeDelta = timeDifference.rayDiv(new BigNumber(ONE_YEAR).wadToRay());
const cumulatedInterest = rate.rayMul(timeDelta).plus(RAY);
const cumulatedInterest = rate
.multipliedBy(timeDifference)
.dividedBy(new BigNumber(ONE_YEAR))
.plus(RAY);
return cumulatedInterest;
};

2
test/pausable-functions.spec.ts
View File

@ -186,7 +186,7 @@ makeSuite('Pausable Pool', (testEnv: TestEnv) => {
await expect(
pool
.connect(caller.signer)
.flashLoan(_mockFlashLoanReceiver.address, weth.address, flashAmount, 1, '0x10', '0')
.flashLoan(_mockFlashLoanReceiver.address, [weth.address], [flashAmount], 1, '0x10', '0')
).revertedWith(IS_PAUSED);
// Unpause pool