Web-ja: update introduction

[lilypond.git] / lily / smobs.cc

diff --git a/lily/smobs.cc b/lily/smobs.cc
index 7bdaaa7f922017055367d496abe3c852a744b479..c700ea0d9b0f0a81d7e3f5d40774f5a85236b756 100644 (file)
--- a/lily/smobs.cc
+++ b/lily/smobs.cc
@@ -1,12 +1,30 @@
 /*
-  smobs.cc -- implement Smob protection
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 2005--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c) 2005--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  LilyPond is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  LilyPond is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "smobs.hh"
+#include "listener.hh"
+
+Listener
+Smob_core::get_listener (SCM callback)
+{
+  return Listener (callback, self_scm ());
+}
 
 /*
   The CDR contains the actual protected list.
@@ -22,12 +40,12 @@ init_smob_protection ()
 ADD_SCM_INIT_FUNC (init_smob_protection, init_smob_protection);
 
 LY_DEFINE (ly_smob_protects, "ly:smob-protects",
-         0, 0, 0, (),
-         "Return LilyPond's internal smob protection list.")
+           0, 0, 0, (),
+           "Return LilyPond's internal smob protection list.")
 {
   return scm_is_pair (smob_protection_list)
-    ? scm_cdr (smob_protection_list)
-    : SCM_EOL;
+         ? scm_cdr (smob_protection_list)
+         : SCM_EOL;
 }
 
 void
@@ -35,16 +53,16 @@ protect_smob (SCM smob, SCM *prot_cons)
 {
 #if 0
   SCM s = scm_cdr (smob_protection_list);
-  while (scm_is_pair (s) && scm_car (s) == SCM_BOOL_F)
+  while (scm_is_pair (s) && scm_is_false (scm_car (s))
     {
       s = scm_cdr (s);
     }
   SCM prot = scm_cons (smob, s);
   scm_set_cdr_x (smob_protection_list,
-                prot);
+                 prot);
   *prot_cons = prot;
 #else
-  (void) prot_cons; 
+  (void) prot_cons;
   scm_gc_protect_object (smob);
 #endif
 }
@@ -53,20 +71,20 @@ void
 unprotect_smob (SCM smob, SCM *prot_cons)
 {
 #if 1
-  (void) prot_cons; 
+  (void) prot_cons;
   scm_gc_unprotect_object (smob);
 #else
   SCM next = scm_cdr (*prot_cons);
 
-  if (next == SCM_EOL)
+  if (scm_is_null (next)))
     scm_set_car_x (*prot_cons, SCM_BOOL_F);
   else
     {
       scm_set_car_x (*prot_cons, SCM_BOOL_F);
       while (scm_is_pair (next)
-            && scm_car (next) == SCM_BOOL_F)
+             && scm_is_false (scm_car (next)))
 
-       next = scm_cdr (next);
+        next = scm_cdr (next);
 
       scm_set_cdr_x (*prot_cons, next);
     }
@@ -74,3 +92,13 @@ unprotect_smob (SCM smob, SCM *prot_cons)
   *prot_cons = SCM_EOL;
 #endif
 }
+
+
+Scm_init const *Scm_init::list_ = 0;
+
+void
+Scm_init::init ()
+{
+  for (Scm_init const *p = list_; p; p = p->next_)
+    p->fun_ ();
+}