lilypond-1.3.0

diff --git a/lily/include/ly-smobs.icc b/lily/include/ly-smobs.icc
new file mode 100644 (file)
index 0000000..2bb82ae
--- /dev/null
+++ b/lily/include/ly-smobs.icc
@@ -0,0 +1,75 @@
+/*   
+  ly-smobs.icc -- implement smob glue. 
+  
+  source file of the GNU LilyPond music typesetter
+  
+  (c) 1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  
+ */
+
+#ifndef LY_SMOBS_ICC
+#define LY_SMOBS_ICC
+
+#define IMPLEMENT_SMOBS(CL)\
+long CL::smob_tag_;\
+static scm_smobfuns CL ## _funs = {                                    \
+  CL::mark_smob, CL::free_smob,                                                \
+  CL::print_smob, 0,                                                   \
+};                                                                     \
+void                                                                   \
+CL::init_smobs ()                                                      \
+{                                                                      \
+  smob_tag_ = scm_newsmob (&CL ## _funs);                                      \
+}                                                                      \
+                                                                       \
+                                                                        \
+void                                                                    \
+CL::unsmobify_self ()                                                   \
+{                                                                       \
+  SCM s = self_scm_;                                                    \
+  scm_unprotect_object (s);                                             \
+                                                                        \
+  SCM_CAR(self_scm_) = SCM_EOL;         \
+  SCM_CDR(self_scm_) = SCM_EOL;                                                 \
+  self_scm_ = SCM_EOL;                                                  \
+}                                                                       \
+\
+SCM                                                                    \
+CL::smobify_self ()                                                    \
+{                                                                      \
+  if (self_scm_ != SCM_EOL)                                            \
+    return self_scm_;                                                  \
+                                                                       \
+  /*                                                                   \
+    This is local. We don't assign to self_scm_ directly, to assure    \
+    that S isn't GC-ed from under us.                                  \
+   */                                                                  \
+  SCM s;                                                               \
+                                                                       \
+  SCM_NEWCELL(s);                                                      \
+  self_scm_ = s;                                                       \
+                                                                       \
+  SCM_SETCAR(s,smob_tag_);                                             \
+  void * me_p = this;                                                  \
+  SCM_SETCDR(s,me_p);                                                  \
+  scm_protect_object (s);                                              \
+                                                                       \
+  do_smobify_self();                                                   \
+  return s;                                    \
+}                                              \
+scm_sizet                                      \
+CL::free_smob (SCM ses)                                \
+{                                              \
+  CL * s = (CL*) SCM_CDR(ses);                 \
+  /* someone else did the deed already; this might be an automatic var.*/ \
+  if (s->self_scm_ != ses)\
+     return 0; \
+  SCM_CAR(ses) = SCM_EOL;\
+                                       \
+  return sizeof(CL);                           \
+}                                              \
+ADD_SCM_INIT_FUNC(CL, CL::init_smobs)\
+
+
+#endif /* LY_SMOBS_ICC */
+