DECLARE_TRANSLATOR_LISTENER (staff_span);
virtual void finalize ();
void process_music ();
+ virtual void derived_mark () const;
};
+void
+Staff_symbol_engraver::derived_mark () const
+{
+ for (LEFT_and_RIGHT (d))
+ {
+ if (span_events_[d])
+ scm_gc_mark (span_events_[d]->self_scm ());
+ }
+}
+
Staff_symbol_engraver::~Staff_symbol_engraver ()
{
if (span_)