2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2004--2012 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/>.
26 #include "ly-smobs.icc"
28 IMPLEMENT_SMOBS (Prob);
29 IMPLEMENT_TYPE_P (Prob, "ly:prob?");
32 Prob::equal_p (SCM sa, SCM sb)
34 /* This comparison function is only designed to make the copy
35 constructor preserve equality.
37 Perhaps it would be better to use a more strict definition of
38 equality; e.g., that two probs are equal iff they can be
39 distinguished by calls to ly:prob-property.
41 Prob *probs[2] = {unsmob_prob (sa), unsmob_prob (sb)};
45 for (i = 0; i < 2; i++)
47 props[i][0] = probs[i]->immutable_property_alist_;
48 props[i][1] = probs[i]->mutable_property_alist_;
51 if (strcmp (probs[0]->class_name (), probs[1]->class_name ()))
54 /* Compare mutable and immutable lists, element by element. */
55 for (i = 0; i < 2; i++)
57 SCM aprop = props[0][i];
58 SCM bprop = props[1][i];
61 scm_is_pair (aprop) && scm_is_pair (bprop);
62 aprop = scm_cdr (aprop), bprop = scm_cdr (bprop))
64 SCM aval = scm_cdar (aprop);
65 SCM bval = scm_cdar (bprop);
66 if (scm_caar (aprop) != scm_caar (bprop)
67 || (!(unsmob_input (aval) && unsmob_input (bval))
69 !to_boolean (scm_equal_p (aval, bval))))
73 /* is one list shorter? */
74 if (aprop != SCM_EOL || bprop != SCM_EOL)
81 Prob::Prob (SCM type, SCM immutable_init)
84 mutable_property_alist_ = SCM_EOL;
85 immutable_property_alist_ = immutable_init;
94 Prob::Prob (Prob const &src)
96 immutable_property_alist_ = src.immutable_property_alist_;
97 mutable_property_alist_ = SCM_EOL;
101 /* First we smobify_self, then we copy over the stuff. If we don't,
102 stack vars that hold the copy might be optimized away, meaning
103 that they won't be protected from GC. */
105 mutable_property_alist_ = src.copy_mutable_properties ();
109 Prob::copy_mutable_properties () const
111 return ly_deep_copy (mutable_property_alist_);
115 Prob::derived_mark () const
120 Prob::mark_smob (SCM smob)
122 ASSERT_LIVE_IS_ALLOWED ();
124 Prob *system = (Prob *) SCM_CELL_WORD_1 (smob);
125 scm_gc_mark (system->mutable_property_alist_);
126 system->derived_mark ();
128 return system->immutable_property_alist_;
132 Prob::print_smob (SCM smob, SCM port, scm_print_state *)
134 Prob *p = (Prob *) SCM_CELL_WORD_1 (smob);
135 scm_puts ("#<", port);
136 scm_puts ("Prob: ", port);
137 scm_display (p->type_, port);
138 scm_puts (" C++: ", port);
139 scm_puts (p->class_name (), port);
140 scm_display (p->mutable_property_alist_, port);
141 scm_display (p->immutable_property_alist_, port);
143 scm_puts (" >\n", port);
148 Prob::internal_get_property (SCM sym) const
151 if (profile_property_accesses)
152 note_property_access (&prob_property_lookup_table, sym);
158 SCM s = scm_sloppy_assq (sym, mutable_property_alist_);
162 s = scm_sloppy_assq (sym, immutable_property_alist_);
163 return (s == SCM_BOOL_F) ? SCM_EOL : scm_cdr (s);
166 /* We don't (yet) instrument probs */
168 Prob::instrumented_set_property (SCM sym, SCM val, const char *, int, const char *)
170 internal_set_property (sym, val);
174 Prob::internal_set_property (SCM sym, SCM val)
176 if (do_internal_type_checking_global)
177 type_check_assignment (sym, val);
179 mutable_property_alist_ = scm_assq_set_x (mutable_property_alist_, sym, val);
183 Prob::type_check_assignment (SCM, SCM) const
189 Prob::get_property_alist (bool m) const
191 return (m) ? mutable_property_alist_ : immutable_property_alist_;
197 SCM nm = get_property ("name");
198 if (scm_is_symbol (nm))
199 return ly_symbol2string (nm);
201 return this->class_name ();