1 files changed, 4 insertions, 0 deletions
diff --git a/expr.h b/expr.h
index 3cdc77a6..8e1ee19a 100644
--- a/expr.h
+++ b/expr.h
@@ -102,9 +102,13 @@ public:
   value_t  calc(scope_t& scope) const;
 
   bool	   is_constant() const;
+  bool     is_function() const;
+
   value_t& constant_value();
   const value_t& constant_value() const;
 
+  function_t& get_function();
+
   void     print(std::ostream& out, scope_t& scope) const;
   void     dump(std::ostream& out) const;
   void     read(const char *& data);