X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fperformer.cc;h=bc6bd3b5ada39d6518a56745d68f2e7332fb09cd;hb=0b544cfb7332615ef809b71b57ab656741311ae1;hp=9d99873989e8755c5bc3d72c115f0c050327d234;hpb=6d37e68b8d93284b8ce8a17975fe3ac482a02f2d;p=lilypond.git

diff --git a/lily/performer.cc b/lily/performer.cc
index 9d99873989..bc6bd3b5ad 100644
--- a/lily/performer.cc
+++ b/lily/performer.cc
@@ -1,17 +1,28 @@
 /*
-  performer.cc -- implement Performer
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
-
-  (c) 1996--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1996--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
   Jan Nieuwenhuizen <janneke@gnu.org>
+
+  LilyPond is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  LilyPond is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "context.hh"
+#include "performer.hh"
 #include "performer-group.hh"
 #include "warn.hh"
 
-
 Performer_group *
 Performer::get_daddy_performer () const
 {
@@ -37,3 +48,9 @@ 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));
+}