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* smob.h (scm_smob_descriptor): Added apply\' and gsubr_type\'.

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* smob.c (scm_make_smob_type): Initialize `apply\' and `gsubr_type\'.
(scm_set_smob_apply): New function.
(scm_smob_apply_0, scm_smob_apply_1, scm_smob_apply_2,
scm_smob_apply_3): New functions.
* eval.c (SCM_CEVAL, SCM_APPLY): Added dispatch for applicable smobs.
* procs.c (s_scm_procedure_p): Check applicable smobs.
This commit is contained in:
Keisuke Nishida 2000-08-25 02:26:22 +00:00
commit 0717dfd871
4 changed files with 208 additions and 0 deletions
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8
libguile/smob.h
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@ -57,6 +57,8 @@ typedef struct scm_smob_descriptor
scm_sizet (*free) (SCM);
int (*print) (SCM exp, SCM port, scm_print_state *pstate);
SCM (*equalp) (SCM, SCM);
SCM (*apply) ();
int gsubr_type;
} scm_smob_descriptor;
@ -112,6 +114,7 @@ do { \
#define SCM_SMOBNAME(smobnum) (scm_smobs[smobnum].name)
#define SCM_SMOB_PREDICATE(tag, obj) (SCM_NIMP (obj) \
&& SCM_TYP16 (obj) == (tag))
#define SCM_SMOB_DESCRIPTOR(x) (scm_smobs[SCM_SMOBNUM (x)])
extern int scm_numsmob;
extern scm_smob_descriptor *scm_smobs;
@ -124,6 +127,10 @@ extern scm_sizet scm_free0 (SCM ptr);
extern scm_sizet scm_smob_free (SCM obj);
extern int scm_smob_print (SCM exp, SCM port, scm_print_state *pstate);
extern SCM scm_smob_apply_0 (SCM smob);
extern SCM scm_smob_apply_1 (SCM smob, SCM a1);
extern SCM scm_smob_apply_2 (SCM smob, SCM a1, SCM a2);
extern SCM scm_smob_apply_3 (SCM smob, SCM a1, SCM a2, SCM rest);
/* The following set of functions is the standard way to create new
* SMOB types.
@ -141,6 +148,7 @@ extern void scm_set_smob_print (long tc, int (*print) (SCM,
SCM,
scm_print_state*));
extern void scm_set_smob_equalp (long tc, SCM (*equalp) (SCM, SCM));
extern void scm_set_smob_apply (long tc, SCM (*apply) (), int req, int opt, int rst);
/* Functions for registering multiple handler functions simultaneously.