fix bug sequence has no elements

Stepami · Oct 16, 2023 · a8ed4d0 · a8ed4d0
1 parent c9c97a3
commit a8ed4d0
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/Interpreter.Lib/IR/Ast/Visitors/ExpressionInstructionProvider.cs b/Interpreter.Lib/IR/Ast/Visitors/ExpressionInstructionProvider.cs
@@ -179,7 +179,11 @@ public AddressedInstructions Visit(AssignmentExpression visitable)
         }
 
         if (visitable.Destination.Empty())
-            result.OfType<Simple>().Last().Left = visitable.Destination.Id;
+        {
+            var lastSimple = result.OfType<Simple>().LastOrDefault();
+            if (lastSimple is not null)
+                lastSimple.Left = visitable.Destination.Id;
+        }
         else
         {
             var last = new Name(result.OfType<Simple>().Last().Left);