X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;ds=sidebyside;f=lily%2Fmusic-iterator.cc;h=6ba70eb63d1e1e918add042de670b91eca6ec477;hb=a1936b89236c17f1fa2abcb8f2f747d586073129;hp=789b2b243c87fd9dd704b482dd2bf77f8822ddd6;hpb=474c8729dc274a30558102a015a01fa5882673db;p=lilypond.git

diff --git a/lily/music-iterator.cc b/lily/music-iterator.cc
index 789b2b243c..6ba70eb63d 100644
--- a/lily/music-iterator.cc
+++ b/lily/music-iterator.cc
@@ -1,11 +1,21 @@
 /*
-  music-iterator.cc -- implement Music_iterator
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 1997--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
-*/
+  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 <cstdio>
 using namespace std;
@@ -40,7 +50,7 @@ Music_iterator::~Music_iterator ()
 Context *
 Music_iterator::get_outlet () const
 {
-  return handle_.get_outlet ();
+  return handle_.get_context ();
 }
 
 void
@@ -86,11 +96,11 @@ Music_iterator::get_static_get_iterator (Music *m)
   else
     {
       if (dynamic_cast<Music_wrapper *> (m))
-	p = new Music_wrapper_iterator;
+        p = new Music_wrapper_iterator;
       else if (m->is_mus_type ("event"))
         p = new Event_iterator;
       else
-	p = new Simple_music_iterator;
+        p = new Simple_music_iterator;
 
       iter = p->self_scm ();
       p->unprotect ();
@@ -159,16 +169,16 @@ Music_iterator::descend_to_bottom_context ()
     set_context (get_outlet ()->get_default_interpreter ());
 }
 
-void 
+void
 Music_iterator::report_event (Music *m)
 {
   descend_to_bottom_context ();
 
   /*
-    FIXME: then don't do it. 
+    FIXME: then don't do it.
   */
   if (!m->is_mus_type ("event"))
-    m->origin ()->programming_error (_ ("Sending non-event to context"));
+    m->origin ()->programming_error ("Sending non-event to context");
 
   m->send_to_context (get_outlet ());
 }
@@ -197,8 +207,11 @@ Music_iterator::mark_smob (SCM smob)
     Careful with GC, although we intend the following as pointers
     only, we _must_ mark them.
   */
-  if (mus->get_outlet ())
-    scm_gc_mark (mus->get_outlet ()->self_scm ());
+  /* Use handle_ directly as get_outlet is a virtual function and we
+     need to protect the context until Music_iterator::quit is being
+     run. */
+  if (mus->handle_.get_context ())
+    scm_gc_mark (mus->handle_.get_context ()->self_scm ());
   if (mus->music_)
     scm_gc_mark (mus->music_->self_scm ());
 
@@ -206,7 +219,7 @@ Music_iterator::mark_smob (SCM smob)
 }
 
 int
-Music_iterator::print_smob (SCM sm, SCM port, scm_print_state*)
+Music_iterator::print_smob (SCM sm, SCM port, scm_print_state *)
 {
   char s[1000];