2 grob-smob.cc -- implement GROB smob routines.
4 source file of the GNU LilyPond music typesetter
6 (c) 2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
13 #include "paper-score.hh"
15 #include "ly-smobs.icc"
17 IMPLEMENT_SMOBS (Grob);
18 IMPLEMENT_DEFAULT_EQUAL_P (Grob);
21 Grob::mark_smob (SCM ses)
23 Grob *s = (Grob *) SCM_CELL_WORD_1 (ses);
24 scm_gc_mark (s->immutable_property_alist_);
27 scm_gc_mark (s->key_->self_scm ());
28 for (int a = 0; a < 2; a++)
30 scm_gc_mark (s->dim_cache_[a].offset_callbacks_);
31 scm_gc_mark (s->dim_cache_[a].dimension_);
32 scm_gc_mark (s->dim_cache_[a].dimension_callback_);
34 /* Do not mark the parents. The pointers in the mutable
35 property list form two tree like structures (one for X
36 relations, one for Y relations). Marking these can be done
37 in limited stack space. If we add the parents, we will jump
38 between X and Y in an erratic manner, leading to much more
39 recursion depth (and core dumps if we link to pthreads). */
43 scm_gc_mark (s->original_->self_scm ());
46 scm_gc_mark (s->pscore_->self_scm ());
48 s->do_derived_mark ();
49 scm_gc_mark (s->object_alist_);
50 scm_gc_mark (s->interfaces_);
52 return s->mutable_property_alist_;
56 Grob::print_smob (SCM s, SCM port, scm_print_state *)
58 Grob *sc = (Grob *) SCM_CELL_WORD_1 (s);
60 scm_puts ("#<Grob ", port);
61 scm_puts ((char *) sc->name ().to_str0 (), port);
63 /* Do not print properties, that is too much hassle. */
64 scm_puts (" >", port);
69 Grob::do_derived_mark () const
74 IMPLEMENT_TYPE_P (Grob, "ly:grob?");