source file of the GNU LilyPond music typesetter
- (c) 1999--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
+ (c) 1999--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#ifndef LY_SMOBS_ICC
#define LY_SMOBS_ICC
+#include "smobs.hh"
-#define IMPLEMENT_UNSMOB(CL, name) \
-CL * \
-unsmob_ ## name ( SCM s) \
-{ \
- if (SMOB_IS_TYPE_B(CL, s)) \
- return SMOB_TO_TYPE(CL, s); \
- else \
- return 0; \
-}\
-SCM smobify (CL *cl)\
+#define IMPLEMENT_TYPE_P(CL, FUNCNAME)\
+void init_type_ ## CL ()\
{\
- SCM s; \
- \
- SCM_NEWCELL(s); \
- SCM_SETCAR(s,CL::smob_tag_); \
- SCM me_s = SCM_PACK(cl); \
- SCM_SETCDR (s, me_s); \
-return s;\
+ SCM subr = scm_c_define_gsubr (FUNCNAME, 1, 0, 0, (Scheme_function_unknown) CL::smob_p);\
+ ly_add_function_documentation (subr, FUNCNAME, "(SCM x)", "Is @var{x} a @code{" #CL "} object?");\
+ scm_c_export (FUNCNAME, NULL);\
}\
+ADD_SCM_INIT_FUNC (init_type_ ## CL, init_type_ ## CL)
+#ifndef SCM_CELL_TYPE
+#define SCM_CELL_TYPE(X) SCM_CAR (X)
+#endif
-/*
- should include equal_p ?
- */
-#define IMPLEMENT_SMOBS(CL)\
-long CL::smob_tag_;\
-void \
-CL::init_smobs () \
-{ \
- smob_tag_ = scm_make_smob_type_mfpe ( \
- #CL, 0, CL::mark_smob, CL::free_smob, CL::print_smob, 0);\
+#ifndef SCM_CELL_WORD_1
+#define SCM_CELL_WORD_1(X) SCM_CDR (X)
+#endif
+
+
+
+#define IMPLEMENT_BASE_SMOBS(CL) \
+scm_t_bits CL::smob_tag_; \
+SCM \
+CL::smob_p (SCM s) \
+{ \
+ if (SCM_NIMP (s) && SCM_CELL_TYPE (s) == smob_tag_) \
+ return SCM_BOOL_T; \
+ else \
+ return SCM_BOOL_F; \
+ \
+} \
+void \
+CL::init_smobs () \
+{ \
+ smob_tag_ = scm_make_smob_type (#CL, 0); \
+ scm_set_smob_mark (smob_tag_, CL::mark_smob); \
+ scm_set_smob_free (smob_tag_, CL::free_smob); \
+ scm_set_smob_print (smob_tag_, CL::print_smob); \
+ scm_set_smob_equalp (smob_tag_, CL::equal_p); \
+} \
+size_t \
+CL::free_smob (SCM ses) \
+{ \
+ CL * s = (CL*) SCM_CDR (ses); \
+ delete s; \
+ scm_gc_unregister_collectable_memory (s, sizeof (CL), #CL " smob"); \
+ return SMOB_FREE_RETURN_VAL(CL);\
}\
- \
- \
-void \
-CL::unsmobify_self () \
-{ \
- SCM s = self_scm_; \
- scm_unprotect_object (s); \
- \
- SCM_SETCAR (self_scm_, SCM_EOL); \
- SCM_SETCDR (self_scm_, SCM_EOL); \
- self_scm_ = SCM_EOL; \
-\
- scm_done_malloc ( - sizeof (CL));\
-} \
-\
-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 = smobify (this); \
- self_scm_ = s; \
- scm_protect_object (s); \
- \
- scm_done_malloc(sizeof(CL));\
- do_smobify_self(); \
- return s; \
-} \
-scm_sizet \
-CL::free_smob (SCM ses) \
+ADD_SCM_INIT_FUNC (CL, CL::init_smobs)
+
+
+#define IMPLEMENT_SIMPLE_SMOBS(CL) \
+IMPLEMENT_BASE_SMOBS(CL);\
+SCM CL::smobbed_copy () const \
+{ \
+ CL * ptr = new CL (*this);\
+ SCM s; \
+ s = gh_cons (SCM_PACK (CL::smob_tag_), SCM_PACK (ptr)); \
+ scm_gc_register_collectable_memory ((CL*)this, sizeof (CL), #CL " smob"); \
+ \
+ return s; \
+} \
+
+
+#define IMPLEMENT_SMOBS(CL) \
+IMPLEMENT_BASE_SMOBS (CL) \
+SCM \
+CL::smobify_self () \
+{ \
+ SCM s = unprotected_smobify_self ();\
+ scm_gc_protect_object (s);\
+ return s;\
+}\
+SCM \
+CL::unprotected_smobify_self () \
+{ \
+ /* \
+ This is local. We don't assign to self_scm_ directly, to assure \
+ that S isn't GC-ed from under us. \
+ \
+ We don't use smobbed_self () to ensure that mark_smob () doesn't have to \
+ deal half-initialized objects: scm_done_malloc ( ) might trigger GC. \
+ the warning in smobs.hh is just to be doubleplus goodly sure \
+ */ \
+ SCM s;\
+ SCM_NEWSMOB (s, CL::smob_tag_, this);\
+ self_scm_ = s; \
+ scm_gc_register_collectable_memory (this, sizeof (CL), #CL " smob"); \
+ return s; \
+}
+
+#define IMPLEMENT_DEFAULT_EQUAL_P(CL) \
+SCM \
+CL::equal_p (SCM a , SCM b) \
{ \
- 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; \
-\
- /* no need to call scm_unprotect_object, since this call \
- implies that the object is not protected. */ \
- SCM_SETCAR (ses, SCM_EOL); \
- delete s;\
- return sizeof (CL);\
-} \
-ADD_SCM_INIT_FUNC(CL, CL::init_smobs)\
+ return a == b ? SCM_BOOL_T : SCM_BOOL_F; \
+}
#endif /* LY_SMOBS_ICC */
+
projects / lilypond.git / blobdiff