2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2004--2014 Jan Nieuwenhuizen <janneke@gnu.org>
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/>.
27 const char Prob::type_p_name_[] = "ly:prob?";
30 Prob::equal_p (SCM sa, SCM sb)
32 /* This comparison function is only designed to make the copy
33 constructor preserve equality.
35 Perhaps it would be better to use a more strict definition of
36 equality; e.g., that two probs are equal iff they can be
37 distinguished by calls to ly:prob-property.
39 Prob *probs[2] = {Prob::unsmob (sa), Prob::unsmob (sb)};
43 for (i = 0; i < 2; i++)
45 props[i][0] = probs[i]->immutable_property_alist_;
46 props[i][1] = probs[i]->mutable_property_alist_;
49 if (strcmp (probs[0]->class_name (), probs[1]->class_name ()))
52 /* Compare mutable and immutable lists, element by element. */
53 for (i = 0; i < 2; i++)
55 SCM aprop = props[0][i];
56 SCM bprop = props[1][i];
59 scm_is_pair (aprop) && scm_is_pair (bprop);
60 aprop = scm_cdr (aprop), bprop = scm_cdr (bprop))
62 SCM aval = scm_cdar (aprop);
63 SCM bval = scm_cdar (bprop);
64 if (scm_caar (aprop) != scm_caar (bprop)
65 || (!(Input::unsmob (aval) && Input::unsmob (bval))
67 !to_boolean (scm_equal_p (aval, bval))))
71 /* is one list shorter? */
72 if (aprop != SCM_EOL || bprop != SCM_EOL)
79 Prob::Prob (SCM type, SCM immutable_init)
81 mutable_property_alist_ = SCM_EOL;
82 immutable_property_alist_ = immutable_init;
91 Prob::Prob (Prob const &src)
93 immutable_property_alist_ = src.immutable_property_alist_;
94 mutable_property_alist_ = SCM_EOL;
97 /* First we smobify_self, then we copy over the stuff. If we don't,
98 stack vars that hold the copy might be optimized away, meaning
99 that they won't be protected from GC. */
101 mutable_property_alist_ = src.copy_mutable_properties ();
105 Prob::copy_mutable_properties () const
107 return ly_deep_copy (mutable_property_alist_);
111 Prob::derived_mark () const
116 Prob::mark_smob (SCM smob)
118 ASSERT_LIVE_IS_ALLOWED (smob);
120 Prob *system = (Prob *) SCM_CELL_WORD_1 (smob);
121 scm_gc_mark (system->mutable_property_alist_);
122 system->derived_mark ();
124 return system->immutable_property_alist_;
128 Prob::print_smob (SCM smob, SCM port, scm_print_state *)
130 Prob *p = (Prob *) SCM_CELL_WORD_1 (smob);
131 scm_puts ("#<", port);
132 scm_puts ("Prob: ", port);
133 scm_display (p->type_, port);
134 scm_puts (" C++: ", port);
135 scm_puts (p->class_name (), port);
136 scm_display (p->mutable_property_alist_, port);
137 scm_display (p->immutable_property_alist_, port);
139 scm_puts (" >\n", port);
144 Prob::internal_get_property (SCM sym) const
147 if (profile_property_accesses)
148 note_property_access (&prob_property_lookup_table, sym);
154 SCM s = scm_sloppy_assq (sym, mutable_property_alist_);
158 s = scm_sloppy_assq (sym, immutable_property_alist_);
159 return (s == SCM_BOOL_F) ? SCM_EOL : scm_cdr (s);
162 /* We don't (yet) instrument probs */
164 Prob::instrumented_set_property (SCM sym, SCM val, const char *, int, const char *)
166 internal_set_property (sym, val);
170 Prob::internal_set_property (SCM sym, SCM val)
172 if (do_internal_type_checking_global)
173 type_check_assignment (sym, val);
175 mutable_property_alist_ = scm_assq_set_x (mutable_property_alist_, sym, val);
179 Prob::type_check_assignment (SCM, SCM) const
185 Prob::get_property_alist (bool m) const
187 return (m) ? mutable_property_alist_ : immutable_property_alist_;
193 SCM nm = get_property ("name");
194 if (scm_is_symbol (nm))
195 return ly_symbol2string (nm);
197 return this->class_name ();