Make more precise comment on _updateIndexes()

aave · Nov 4, 2022 · efdaf63 · efdaf63
1 parent 9a68e2a
commit efdaf63
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/contracts/protocol/libraries/logic/ReserveLogic.sol b/contracts/protocol/libraries/logic/ReserveLogic.sol
@@ -300,7 +300,9 @@ library ReserveLogic {
       reserve.liquidityIndex = reserveCache.nextLiquidityIndex.toUint128();
     }
 
-    // Variable borrow side only gets updated if there is any accrual of variable debt
+    // Variable borrow index only gets updated if there is any variable debt.
+    // We assume that in that case the variable borrow rate is positive, to avoid
+    // over-optimization
     if (reserveCache.currScaledVariableDebt != 0) {
       uint256 cumulatedVariableBorrowInterest = MathUtils.calculateCompoundedInterest(
         reserveCache.currVariableBorrowRate,