Instadapp/aave-protocol-v2
1
0
Fork 0
mirror of https://github.com/Instadapp/aave-protocol-v2.git synced 2024-07-29 21:47:30 +00:00
Code Issues Packages Projects Releases Wiki Activity

Updated flashloan function

Browse Source
This commit is contained in:
The3D 2020-08-23 16:49:23 +02:00
parent 8e3c1a048b
commit 9377a137f1
1 changed files with 2 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
contracts/lendingpool/LendingPool.sol
View File

@ -459,16 +459,9 @@ contract LendingPool is VersionedInitializable, ILendingPool {
address aTokenAddress = reserve.aTokenAddress;
//check that the reserve has enough available liquidity
uint256 availableLiquidityBefore = IERC20(asset).balanceOf(aTokenAddress);
//calculate amount fee
uint256 amountFee = amount.mul(FLASHLOAN_FEE_TOTAL).div(10000);
require(
availableLiquidityBefore >= amount,
'There is not enough liquidity available to borrow'
);
require(amountFee > 0, 'The requested amount is too small for a FlashLoan.');
//get the FlashLoanReceiver instance
@ -480,21 +473,12 @@ contract LendingPool is VersionedInitializable, ILendingPool {
//execute action of the receiver
receiver.executeOperation(asset, aTokenAddress, amount, amountFee, params);
//check that the actual balance of the core contract includes the returned amount
uint256 availableLiquidityAfter = IERC20(asset).balanceOf(aTokenAddress);
require(
availableLiquidityAfter == availableLiquidityBefore.add(amountFee),
'The actual balance of the protocol is inconsistent'
);
//transfer from the receiver the amount plus the fee
IERC20(asset).safeTransferFrom(receiver, aTokenAddress, amount.add(amountFee));
//compounding the cumulated interest
reserve.updateCumulativeIndexesAndTimestamp();
uint256 totalLiquidityBefore = availableLiquidityBefore
.add(IERC20(reserve.variableDebtTokenAddress).totalSupply())
.add(IERC20(reserve.stableDebtTokenAddress).totalSupply());
//compounding the received fee into the reserve
reserve.cumulateToLiquidityIndex(totalLiquidityBefore, amountFee);