1 files changed, 3 insertions, 1 deletions
diff --git a/tapsets.h b/tapsets.h
index bdaf3201..1d5ba942 100644
--- a/tapsets.h
+++ b/tapsets.h
@@ -50,8 +50,10 @@ struct var_expanding_visitor: public update_visitor
   static unsigned tick;
   std::stack<functioncall**> target_symbol_setter_functioncalls;
   std::stack<defined_op*> defined_ops;
+  std::set<std::string> valid_ops;
+  std::string *op;
 
-  var_expanding_visitor() {}
+  var_expanding_visitor ();
   void visit_assignment (assignment* e);
   void visit_defined_op (defined_op* e);
 };