mruby 3.3.0
mruby is the lightweight implementation of the Ruby language
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class.h
Go to the documentation of this file.
1
7#ifndef MRUBY_CLASS_H
8#define MRUBY_CLASS_H
9
10#include "common.h"
11
16
17struct RClass {
18 MRB_OBJECT_HEADER;
19 struct iv_tbl *iv;
20 struct mt_tbl *mt;
21 struct RClass *super;
22};
23
24#define mrb_class_ptr(v) ((struct RClass*)(mrb_ptr(v)))
25
26MRB_INLINE struct RClass*
27mrb_class(mrb_state *mrb, mrb_value v)
28{
29 if (!mrb_immediate_p(v)) {
30 return mrb_obj_ptr(v)->c;
31 }
32
33 switch (mrb_type(v)) {
34 case MRB_TT_FALSE:
35 if (mrb_fixnum(v))
36 return mrb->false_class;
37 return mrb->nil_class;
38 case MRB_TT_TRUE:
39 return mrb->true_class;
40 case MRB_TT_SYMBOL:
41 return mrb->symbol_class;
42 case MRB_TT_INTEGER:
43 return mrb->integer_class;
44#ifndef MRB_NO_FLOAT
45 case MRB_TT_FLOAT:
46 return mrb->float_class;
47#endif
48 case MRB_TT_CPTR:
49 return mrb->object_class;
50 default:
51 return NULL;
52 }
53}
54
55/* flags:
56 20: frozen
57 19: is_prepended
58 18: is_origin
59 17: is_inherited (used by method cache)
60 7-16: unused
61 6: prohibit Class#allocate
62 0-5: instance type
63*/
64#define MRB_FL_CLASS_IS_PREPENDED (1 << 19)
65#define MRB_FL_CLASS_IS_ORIGIN (1 << 18)
66#define MRB_CLASS_ORIGIN(c) do {\
67 if ((c)->flags & MRB_FL_CLASS_IS_PREPENDED) {\
68 (c) = (c)->super;\
69 while (!((c)->flags & MRB_FL_CLASS_IS_ORIGIN)) {\
70 (c) = (c)->super;\
71 }\
72 }\
73} while (0)
74#define MRB_FL_CLASS_IS_INHERITED (1 << 17)
75#define MRB_INSTANCE_TT_MASK (0x1F)
76#define MRB_SET_INSTANCE_TT(c, tt) ((c)->flags = (((c)->flags & ~MRB_INSTANCE_TT_MASK) | (char)(tt)))
77#define MRB_INSTANCE_TT(c) (enum mrb_vtype)((c)->flags & MRB_INSTANCE_TT_MASK)
78#define MRB_FL_UNDEF_ALLOCATE (1 << 6)
79#define MRB_UNDEF_ALLOCATOR(c) (mrb_assert((c)->tt == MRB_TT_CLASS), (c)->flags |= MRB_FL_UNDEF_ALLOCATE)
80#define MRB_UNDEF_ALLOCATOR_P(c) ((c)->flags & MRB_FL_UNDEF_ALLOCATE)
81#define MRB_DEFINE_ALLOCATOR(c) ((c)->flags &= ~MRB_FL_UNDEF_ALLOCATE)
82
83MRB_API void mrb_define_method_raw(mrb_state*, struct RClass*, mrb_sym, mrb_method_t);
84MRB_API void mrb_alias_method(mrb_state*, struct RClass *c, mrb_sym a, mrb_sym b);
85MRB_API void mrb_remove_method(mrb_state *mrb, struct RClass *c, mrb_sym sym);
86
87MRB_API mrb_method_t mrb_method_search_vm(mrb_state*, struct RClass**, mrb_sym);
88MRB_API mrb_method_t mrb_method_search(mrb_state*, struct RClass*, mrb_sym);
89
90MRB_API struct RClass* mrb_class_real(struct RClass* cl);
91
92#ifndef MRB_NO_METHOD_CACHE
93void mrb_mc_clear_by_class(mrb_state *mrb, struct RClass* c);
94#else
95#define mrb_mc_clear_by_class(mrb,c)
96#endif
97
98/* return non zero to break the loop */
99typedef int (mrb_mt_foreach_func)(mrb_state*,mrb_sym,mrb_method_t,void*);
100MRB_API void mrb_mt_foreach(mrb_state*, struct RClass*, mrb_mt_foreach_func*, void*);
101
103
104#endif /* MRUBY_CLASS_H */
mruby Symbol.
mruby common platform definition"
#define MRB_INLINE
Declare a function as always inlined.
Definition common.h:68
#define MRB_END_DECL
End declarations in C mode.
Definition common.h:28
#define MRB_BEGIN_DECL
Start declarations in C mode.
Definition common.h:26
#define MRB_API
Declare a public mruby API function.
Definition common.h:79
Class class.
Definition class.h:17
Definition variable.c:17
Definition mruby.h:256
Definition boxing_nan.h:40
Definition class.c:39