2 ** mruby/data.h - Data class
4 ** See Copyright Notice in mruby.h
13 * Custom C wrapped data.
15 * Defining Ruby wrappers around native objects.
20 * Custom data type description.
22 typedef struct mrb_data_type {
24 const char *struct_name;
26 /** data type release function pointer */
27 void (*dfree)(mrb_state *mrb, void*);
33 const mrb_data_type *type;
37 MRB_API struct RData *mrb_data_object_alloc(mrb_state *mrb, struct RClass* klass, void *datap, const mrb_data_type *type);
39 #define Data_Wrap_Struct(mrb,klass,type,ptr)\
40 mrb_data_object_alloc(mrb,klass,ptr,type)
42 #define Data_Make_Struct(mrb,klass,strct,type,sval,data_obj) do { \
43 (data_obj) = Data_Wrap_Struct(mrb,klass,type,NULL);\
44 (sval) = mrb_malloc(mrb, sizeof(strct)); \
45 { static const strct zero = { 0 }; *(sval) = zero; };\
46 (data_obj)->data = (sval);\
49 #define RDATA(obj) ((struct RData *)(mrb_ptr(obj)))
50 #define DATA_PTR(d) (RDATA(d)->data)
51 #define DATA_TYPE(d) (RDATA(d)->type)
52 MRB_API void mrb_data_check_type(mrb_state *mrb, mrb_value, const mrb_data_type*);
53 MRB_API void *mrb_data_get_ptr(mrb_state *mrb, mrb_value, const mrb_data_type*);
54 #define DATA_GET_PTR(mrb,obj,dtype,type) (type*)mrb_data_get_ptr(mrb,obj,dtype)
55 MRB_API void *mrb_data_check_get_ptr(mrb_state *mrb, mrb_value, const mrb_data_type*);
56 #define DATA_CHECK_GET_PTR(mrb,obj,dtype,type) (type*)mrb_data_check_get_ptr(mrb,obj,dtype)
58 /* obsolete functions and macros */
59 #define mrb_data_check_and_get(mrb,obj,dtype) mrb_data_get_ptr(mrb,obj,dtype)
60 #define mrb_get_datatype(mrb,val,type) mrb_data_get_ptr(mrb, val, type)
61 #define mrb_check_datatype(mrb,val,type) mrb_data_get_ptr(mrb, val, type)
62 #define Data_Get_Struct(mrb,obj,type,sval) do {\
63 *(void**)&sval = mrb_data_get_ptr(mrb, obj, type); \
67 mrb_data_init(mrb_value v, void *ptr, const mrb_data_type *type)
69 mrb_assert(mrb_type(v) == MRB_TT_DATA);
76 #endif /* MRUBY_DATA_H */