add tryCatch to LibDeltaB

BeanstalkFarms · Sep 23, 2024 · d5714c8 · d5714c8
1 parent 6d645e1
commit d5714c8
Showing 1 changed file with 12 additions and 9 deletions.
diff --git a/protocol/contracts/libraries/Oracle/LibDeltaB.sol b/protocol/contracts/libraries/Oracle/LibDeltaB.sol
@@ -184,14 +184,17 @@ library LibDeltaB {
             revert("Well: USD Oracle call failed");
         }
 
-        return
-            int256(
-                IBeanstalkWellFunction(wellFunction.target).calcReserveAtRatioSwap(
-                    reserves,
-                    beanIndex,
-                    ratios,
-                    wellFunction.data
-                )
-            ).sub(int256(reserves[beanIndex]));
+        try
+            IBeanstalkWellFunction(wellFunction.target).calcReserveAtRatioSwap(
+                reserves,
+                beanIndex,
+                ratios,
+                wellFunction.data
+            )
+        returns (uint256 reserve) {
+            return int256(reserve).sub(int256(reserves[beanIndex]));
+        } catch {
+            return 0;
+        }
     }
 }