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make some applicable struct vtable-vtable public to C

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* libguile/struct.h (scm_standard_vtable_vtable)
  (scm_applicable_struct_vtable_vtable)
  (scm_applicable_struct_with_setter_vtable_vtable)
* libguile/struct.c: Make these stock meta-tables public to C.
This commit is contained in:
Andy Wingo 2009-12-08 21:46:47 +01:00
parent 34dfef5135
commit db5ed68588
2 changed files with 12 additions and 9 deletions
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17
libguile/struct.c
View file

@ -54,6 +54,10 @@ static SCM required_vtable_fields = SCM_BOOL_F;
static SCM required_applicable_fields = SCM_BOOL_F;
static SCM required_applicable_with_setter_fields = SCM_BOOL_F;
SCM scm_struct_table = SCM_BOOL_F;
SCM scm_applicable_struct_vtable_vtable;
SCM scm_applicable_struct_with_setter_vtable_vtable;
SCM scm_standard_vtable_vtable;
SCM_DEFINE (scm_make_struct_layout, "make-struct-layout", 1, 0, 0,
@ -546,8 +550,6 @@ SCM_DEFINE (scm_make_vtable_vtable, "make-vtable-vtable", 2, 0, 1,
#undef FUNC_NAME
static SCM scm_i_vtable_vtable_no_extra_fields;
SCM_DEFINE (scm_make_vtable, "make-vtable", 1, 1, 0,
(SCM fields, SCM printer),
"Create a vtable, for creating structures with the given\n"
@ -561,7 +563,7 @@ SCM_DEFINE (scm_make_vtable, "make-vtable", 1, 1, 0,
if (SCM_UNBNDP (printer))
printer = SCM_BOOL_F;
return scm_make_struct (scm_i_vtable_vtable_no_extra_fields, SCM_INUM0,
return scm_make_struct (scm_standard_vtable_vtable, SCM_INUM0,
scm_list_2 (scm_make_struct_layout (fields),
printer));
}
@ -898,9 +900,6 @@ scm_print_struct (SCM exp, SCM port, scm_print_state *pstate)
void
scm_init_struct ()
{
SCM scm_applicable_struct_vtable_vtable;
SCM scm_applicable_struct_with_setter_vtable_vtable;
GC_REGISTER_DISPLACEMENT (2*sizeof(scm_t_bits)); /* for the self data pointer */
GC_REGISTER_DISPLACEMENT (2*sizeof(scm_t_bits)
+ scm_tc3_struct); /* for the vtable data pointer */
@ -910,18 +909,18 @@ scm_init_struct ()
required_applicable_fields = scm_from_locale_string (SCM_APPLICABLE_BASE_LAYOUT);
required_applicable_with_setter_fields = scm_from_locale_string (SCM_APPLICABLE_WITH_SETTER_BASE_LAYOUT);
scm_i_vtable_vtable_no_extra_fields =
scm_standard_vtable_vtable =
scm_make_vtable_vtable (scm_nullstr, SCM_INUM0, SCM_EOL);
scm_applicable_struct_vtable_vtable =
scm_make_struct (scm_i_vtable_vtable_no_extra_fields, SCM_INUM0,
scm_make_struct (scm_standard_vtable_vtable, SCM_INUM0,
scm_list_1 (scm_make_struct_layout (required_vtable_fields)));
SCM_SET_VTABLE_FLAGS (scm_applicable_struct_vtable_vtable,
SCM_VTABLE_FLAG_APPLICABLE_VTABLE);
scm_c_define ("<applicable-struct-vtable>", scm_applicable_struct_vtable_vtable);
scm_applicable_struct_with_setter_vtable_vtable =
scm_make_struct (scm_i_vtable_vtable_no_extra_fields, SCM_INUM0,
scm_make_struct (scm_standard_vtable_vtable, SCM_INUM0,
scm_list_1 (scm_make_struct_layout (required_vtable_fields)));
SCM_SET_VTABLE_FLAGS (scm_applicable_struct_with_setter_vtable_vtable,
SCM_VTABLE_FLAG_APPLICABLE_VTABLE | SCM_VTABLE_FLAG_SETTER_VTABLE);

4
libguile/struct.h
View file

@ -141,6 +141,10 @@ typedef void (*scm_t_struct_finalize) (SCM obj);
#define SCM_SET_STRUCT_TABLE_CLASS(X, CLASS) SCM_SETCDR (X, CLASS)
SCM_API SCM scm_struct_table;
SCM_API SCM scm_standard_vtable_vtable;
SCM_API SCM scm_applicable_struct_vtable_vtable;
SCM_API SCM scm_applicable_struct_with_setter_vtable_vtable;
SCM_API SCM scm_make_struct_layout (SCM fields);