Fix #818.

[lilypond.git] / lily / performer.cc

diff --git a/lily/performer.cc b/lily/performer.cc
index c177f9e975e2760df30700a2470095ccc00c8313..60a0519d42b31336abaa8b1bff32022a46305581 100644 (file)
--- a/lily/performer.cc
+++ b/lily/performer.cc
@@ -19,6 +19,7 @@
 */
 
 #include "context.hh"
+#include "performer.hh"
 #include "performer-group.hh"
 #include "warn.hh"
 
@@ -48,3 +49,9 @@ Performer::announce_element (Audio_element_info i)
 
   get_daddy_performer ()->announce_element (i);
 }
+
+Performer *
+unsmob_performer (SCM perf)
+{
+  return dynamic_cast<Performer *> (unsmob_translator (perf));
+}