unboxable let bindings

interpreter/code.c

@@ -896,15 +896,19 @@ void exec(Code* expr, int frame_ptr, int root_frame_ptr)
             {
                 LetBindingEntry* binding = ((LetEntry*) expr)->bindings[i];
                 
-                // Normal
-                if(binding->type == 0)
+                switch(binding->type)
                 {
-                    binding->body->create_thunk(binding->body, &stack_a[stack_top_a++], frame_ptr);
-                }
-                else // strict (including unboxed))
-                {
-                    push_a(NULL);
-                    exec(binding->body, frame_ptr, stack_top_a);
+                    case 0: // normal
+                        binding->body->create_thunk(binding->body, &stack_a[stack_top_a++], frame_ptr);
+                        break;
+                    case 1: // strict
+                        push_a(NULL);
+                        exec(binding->body, frame_ptr, stack_top_a);
+                        break;
+                    case 2: // unboxable
+                        push_a(alloc_b());
+                        exec(binding->body, frame_ptr, stack_top_a);
+                        break;
                 }
             }