diff --git a/src/structs.h b/src/structs.h
index 08edcf4..89ed23d 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -1465,6 +1465,7 @@
 #define TTFLAG_NUMBER_OK    0x04    // tt_type is VAR_FLOAT, VAR_NUMBER is OK
 #define TTFLAG_STATIC	    0x08    // one of the static types, e.g. t_any
 #define TTFLAG_CONST	    0x10    // cannot be changed
+#define TTFLAG_SUPER	    0x20    // object from "super".
 
 typedef enum {
     ACCESS_PRIVATE,	// read/write only inside th class
@@ -1506,7 +1507,8 @@
     typval_T	*class_members_tv;	// allocated array of class member vals
 
     // class functions: "static def SomeMethod()"
-    int		class_class_function_count;
+    int		class_class_function_count;	    // total count
+    int		class_class_function_count_child;   // count without "extends"
     ufunc_T	**class_class_functions;	// allocated
 
     // object members: "this.varname"
@@ -1514,7 +1516,8 @@
     ocmember_T	*class_obj_members;	// allocated
 
     // object methods: "def SomeMethod()"
-    int		class_obj_method_count;
+    int		class_obj_method_count;		    // total count
+    int		class_obj_method_count_child;	    // count without "extends"
     ufunc_T	**class_obj_methods;	// allocated
 
     garray_T	class_type_list;	// used for type pointers