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Diffstat (limited to 'include/ruby/impl/core/rdata.h')
| -rw-r--r-- | include/ruby/impl/core/rdata.h | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/include/ruby/impl/core/rdata.h b/include/ruby/impl/core/rdata.h new file mode 100644 index 0000000000..383785af4c --- /dev/null +++ b/include/ruby/impl/core/rdata.h @@ -0,0 +1,174 @@ +#ifndef RUBY3_RDATA_H /*-*-C++-*-vi:se ft=cpp:*/ +#define RUBY3_RDATA_H +/** + * @file + * @author Ruby developers <ruby-core@ruby-lang.org> + * @copyright This file is a part of the programming language Ruby. + * Permission is hereby granted, to either redistribute and/or + * modify this file, provided that the conditions mentioned in the + * file COPYING are met. Consult the file for details. + * @warning Symbols prefixed with either `RUBY3` or `ruby3` are + * implementation details. Don't take them as canon. They could + * rapidly appear then vanish. The name (path) of this header file + * is also an implementation detail. Do not expect it to persist + * at the place it is now. Developers are free to move it anywhere + * anytime at will. + * @note To ruby-core: remember that this header can be possibly + * recursively included from extension libraries written in C++. + * Do not expect for instance `__VA_ARGS__` is always available. + * We assume C99 for ruby itself but we don't assume languages of + * extension libraries. They could be written in C++98. + * @brief Defines struct ::RData. + */ +#include "ruby/3/config.h" + +#ifdef STDC_HEADERS +# include <stddef.h> +#endif + +#include "ruby/3/attr/deprecated.h" +#include "ruby/3/attr/warning.h" +#include "ruby/3/cast.h" +#include "ruby/3/core/rbasic.h" +#include "ruby/3/dllexport.h" +#include "ruby/3/fl_type.h" +#include "ruby/3/token_paste.h" +#include "ruby/3/value.h" +#include "ruby/3/value_type.h" +#include "ruby/defines.h" + +#ifdef RUBY_UNTYPED_DATA_WARNING +# /* Take that. */ +#elif defined(RUBY_EXPORT) +# define RUBY_UNTYPED_DATA_WARNING 1 +#else +# define RUBY_UNTYPED_DATA_WARNING 0 +#endif + +/** @cond INTERNAL_MACRO */ +#define RUBY3_DATA_FUNC(f) RUBY3_CAST((void (*)(void *))(f)) +#define RUBY3_ATTRSET_UNTYPED_DATA_FUNC() \ + RUBY3_ATTR_WARNING(("untyped Data is unsafe; use TypedData instead")) \ + RUBY3_ATTR_DEPRECATED(("by TypedData")) +/** @endcond */ + +#define RDATA(obj) RUBY3_CAST((struct RData *)(obj)) +#define DATA_PTR(obj) RDATA(obj)->data +#define RUBY_MACRO_SELECT RUBY3_TOKEN_PASTE +#define RUBY_DEFAULT_FREE RUBY3_DATA_FUNC(-1) +#define RUBY_NEVER_FREE RUBY3_DATA_FUNC(0) +#define RUBY_UNTYPED_DATA_FUNC(f) f RUBY3_ATTRSET_UNTYPED_DATA_FUNC() + +/* +#define RUBY_DATA_FUNC(func) ((void (*)(void*))(func)) +*/ +typedef void (*RUBY_DATA_FUNC)(void*); + +struct RData { + struct RBasic basic; + RUBY_DATA_FUNC dmark; + RUBY_DATA_FUNC dfree; + void *data; +}; + +RUBY3_SYMBOL_EXPORT_BEGIN() +VALUE rb_data_object_wrap(VALUE klass, void *datap, RUBY_DATA_FUNC dmark, RUBY_DATA_FUNC dfree); +VALUE rb_data_object_zalloc(VALUE klass, size_t size, RUBY_DATA_FUNC dmark, RUBY_DATA_FUNC dfree); +RUBY3_SYMBOL_EXPORT_END() + +#define Data_Wrap_Struct(klass, mark, free, sval) \ + rb_data_object_wrap( \ + (klass), \ + (sval), \ + RUBY3_DATA_FUNC(mark), \ + RUBY3_DATA_FUNC(free)) + +#define Data_Make_Struct0(result, klass, type, size, mark, free, sval) \ + VALUE result = rb_data_object_zalloc( \ + (klass), \ + (size), \ + RUBY3_DATA_FUNC(mark), \ + RUBY3_DATA_FUNC(free)); \ + (sval) = RUBY3_CAST((type *)DATA_PTR(result)); \ + RUBY3_CAST(/*suppress unused variable warnings*/(void)(sval)) + +#ifdef HAVE_STMT_AND_DECL_IN_EXPR +#define Data_Make_Struct(klass, type, mark, free, sval) \ + RB_GNUC_EXTENSION({ \ + Data_Make_Struct0( \ + data_struct_obj, \ + klass, \ + type, \ + sizeof(type), \ + mark, \ + free, \ + sval); \ + data_struct_obj; \ + }) +#else +#define Data_Make_Struct(klass, type, mark, free, sval) \ + rb_data_object_make( \ + (klass), \ + RUBY3_DATA_FUNC(mark), \ + RUBY3_DATA_FUNC(free), \ + RUBY3_CAST((void **)&(sval)), \ + sizeof(type)) +#endif + +#define Data_Get_Struct(obj, type, sval) \ + ((sval) = RUBY3_CAST((type*)rb_data_object_get(obj))) + +RUBY3_ATTRSET_UNTYPED_DATA_FUNC() +static inline VALUE +rb_data_object_wrap_warning(VALUE klass, void *ptr, RUBY_DATA_FUNC mark, RUBY_DATA_FUNC free) +{ + return rb_data_object_wrap(klass, ptr, mark, free); +} + +static inline void * +rb_data_object_get(VALUE obj) +{ + Check_Type(obj, RUBY_T_DATA); + return DATA_PTR(obj); +} + +RUBY3_ATTRSET_UNTYPED_DATA_FUNC() +static inline void * +rb_data_object_get_warning(VALUE obj) +{ + return rb_data_object_get(obj); +} + +#if defined(HAVE_BUILTIN___BUILTIN_CHOOSE_EXPR_CONSTANT_P) +# define rb_data_object_wrap_warning(klass, ptr, mark, free) \ + RB_GNUC_EXTENSION( \ + __builtin_choose_expr( \ + __builtin_constant_p(klass) && !(klass), \ + rb_data_object_wrap(klass, ptr, mark, free), \ + (rb_data_object_wrap_warning)(klass, ptr, mark, free))) +#endif + +static inline VALUE +rb_data_object_make(VALUE klass, RUBY_DATA_FUNC mark_func, RUBY_DATA_FUNC free_func, void **datap, size_t size) +{ + Data_Make_Struct0(result, klass, void, size, mark_func, free_func, *datap); + return result; +} + +RUBY3_ATTR_DEPRECATED(("by: rb_data_object_wrap")) +static inline VALUE +rb_data_object_alloc(VALUE klass, void *data, RUBY_DATA_FUNC dmark, RUBY_DATA_FUNC dfree) +{ + return rb_data_object_wrap(klass, data, dmark, dfree); +} + +#define rb_data_object_wrap_0 rb_data_object_wrap +#define rb_data_object_wrap_1 rb_data_object_wrap_warning +#define rb_data_object_wrap RUBY_MACRO_SELECT(rb_data_object_wrap_, RUBY_UNTYPED_DATA_WARNING) +#define rb_data_object_get_0 rb_data_object_get +#define rb_data_object_get_1 rb_data_object_get_warning +#define rb_data_object_get RUBY_MACRO_SELECT(rb_data_object_get_, RUBY_UNTYPED_DATA_WARNING) +#define rb_data_object_make_0 rb_data_object_make +#define rb_data_object_make_1 rb_data_object_make_warning +#define rb_data_object_make RUBY_MACRO_SELECT(rb_data_object_make_, RUBY_UNTYPED_DATA_WARNING) +#endif /* RUBY3_RDATA_H */ |