2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2005--2010 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"
25 #include "ly-smobs.icc"
27 IMPLEMENT_SMOBS (Grob);
28 IMPLEMENT_DEFAULT_EQUAL_P (Grob);
29 IMPLEMENT_TYPE_P (Grob, "ly:grob?");
32 Grob::mark_smob (SCM ses)
34 ASSERT_LIVE_IS_ALLOWED ();
36 Grob *s = (Grob *) SCM_CELL_WORD_1 (ses);
37 scm_gc_mark (s->immutable_property_alist_);
39 /* Do not mark the parents. The pointers in the mutable
40 property list form two tree like structures (one for X
41 relations, one for Y relations). Marking these can be done
42 in limited stack space. If we add the parents, we will jump
43 between X and Y in an erratic manner, leading to much more
44 recursion depth (and core dumps if we link to pthreads). */
47 scm_gc_mark (s->original ()->self_scm ());
50 scm_gc_mark (s->object_alist_);
51 scm_gc_mark (s->interfaces_);
53 return s->mutable_property_alist_;
57 Grob::print_smob (SCM s, SCM port, scm_print_state *)
59 Grob *sc = (Grob *) SCM_CELL_WORD_1 (s);
61 scm_puts ("#<Grob ", port);
62 scm_puts ((char *) sc->name ().c_str (), port);
64 /* Do not print properties, that is too much hassle. */
65 scm_puts (" >", port);
70 Grob::derived_mark () const