2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2005--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
6 LilyPond is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 LilyPond is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
22 #include "paper-score.hh"
26 const char Grob::type_p_name_[] = "ly:grob?";
29 Grob::mark_smob (SCM ses)
31 ASSERT_LIVE_IS_ALLOWED (ses);
33 Grob *s = (Grob *) SCM_CELL_WORD_1 (ses);
34 scm_gc_mark (s->immutable_property_alist_);
36 /* Do not mark the parents. The pointers in the mutable
37 property list form two tree like structures (one for X
38 relations, one for Y relations). Marking these can be done
39 in limited stack space. If we add the parents, we will jump
40 between X and Y in an erratic manner, leading to much more
41 recursion depth (and core dumps if we link to pthreads). */
44 scm_gc_mark (s->original ()->self_scm ());
47 scm_gc_mark (s->object_alist_);
48 scm_gc_mark (s->interfaces_);
50 return s->mutable_property_alist_;
54 Grob::print_smob (SCM s, SCM port, scm_print_state *)
56 Grob *sc = (Grob *) SCM_CELL_WORD_1 (s);
58 scm_puts ("#<Grob ", port);
59 scm_puts ((char *) sc->name ().c_str (), port);
61 /* Do not print properties, that is too much hassle. */
62 scm_puts (" >", port);
67 Grob::derived_mark () const