-#ifndef NDEBUG
- void internal_set_property (SCM var_sym, SCM value, char const *file, int line, char const *fun);
-#else
- void internal_set_property (SCM var_sym, SCM value);
-#endif
-
- Context *create_context (Context_def *, string, SCM);
- DECLARE_LISTENER (create_context_from_event);
- DECLARE_LISTENER (acknowledge_infant);
- DECLARE_LISTENER (remove_context);
- DECLARE_LISTENER (change_parent);
- void disconnect_from_parent ();