X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fsmobs.hh;h=3c760cf33969953db4d8a31b7a3ca9c9a2c8cf2e;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=cfd49db34f7260e9053aeafee57fc83740c9c869;hpb=358d6e99ada8019268ade9ba9080b2d0d88eeb7a;p=lilypond.git

diff --git a/lily/include/smobs.hh b/lily/include/smobs.hh
index cfd49db34f..3c760cf339 100644
--- a/lily/include/smobs.hh
+++ b/lily/include/smobs.hh
@@ -3,14 +3,14 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 1999--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  (c) 1999--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
 #ifndef SMOBS_HH
 #define SMOBS_HH
 
 #include "lily-guile.hh"
-#include "virtual-methods.hh"
+#include "warn.hh"
 
 /*
   Smobs are GUILEs mechanism of exporting C(++) objects to the Scheme
@@ -96,13 +96,14 @@
 #define DECLARE_BASE_SMOBS(CL)					\
   friend class Non_existent_class;				\
   private:							\
+  static const char* smob_name_; \
   static scm_t_bits smob_tag_;					\
   static SCM mark_smob (SCM);					\
   static size_t free_smob (SCM s);				\
   static int print_smob (SCM s, SCM p, scm_print_state*);	\
   public:							\
   static SCM equal_p (SCM a, SCM b);				\
-  static CL *unsmob (SCM s)					\
+  static CL *unsmob (SCM s) __attribute__((pure))		\
   {								\
     if (SCM_NIMP (s) && SCM_CELL_TYPE (s) == smob_tag_)		\
       return (CL *) SCM_CELL_WORD_1 (s);			\
@@ -140,5 +141,18 @@
 void protect_smob (SCM smob, SCM *prot_cons);
 void unprotect_smob (SCM smob, SCM *prot_cons);
 
+extern bool parsed_objects_should_be_dead;
+
+#ifndef NDEBUG
+#define ASSERT_LIVE_IS_ALLOWED()     \
+  static bool passed_here_once;\
+  if (parsed_objects_should_be_dead && !passed_here_once) { \
+    ::programming_error (string ("Parsed object should be dead: ")  + __PRETTY_FUNCTION__ ); \
+    passed_here_once = true;\
+  }    
+#else
+#define ASSERT_LIVE_IS_ALLOWED()
+#endif
+
 #endif /* SMOBS_HH */