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Diffstat (limited to 'include/ruby/3/newobj.h')
| -rw-r--r-- | include/ruby/3/newobj.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/include/ruby/3/newobj.h b/include/ruby/3/newobj.h new file mode 100644 index 0000000000..89f7e9c30d --- /dev/null +++ b/include/ruby/3/newobj.h @@ -0,0 +1,73 @@ +/** \noop-*-C++-*-vi:ft=cpp + * @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 #NEWOBJ. + */ +#ifndef RUBY3_NEWOBJ_H +#define RUBY3_NEWOBJ_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/special_consts.h" +#include "ruby/3/value.h" +#include "ruby/assert.h" + +#define RB_NEWOBJ(obj,type) type *(obj) = RUBY3_CAST((type *)rb_newobj()) +#define RB_NEWOBJ_OF(obj,type,klass,flags) type *(obj) = RUBY3_CAST((type *)rb_newobj_of(klass, flags)) + +#define NEWOBJ RB_NEWOBJ +#define NEWOBJ_OF RB_NEWOBJ_OF /* core has special NEWOBJ_OF() in internal.h */ +#define OBJSETUP rb_obj_setup /* use NEWOBJ_OF instead of NEWOBJ()+OBJSETUP() */ +#define CLONESETUP rb_clone_setup +#define DUPSETUP rb_dup_setup + +RUBY3_SYMBOL_EXPORT_BEGIN() +VALUE rb_newobj(void); +VALUE rb_newobj_of(VALUE, VALUE); +VALUE rb_obj_setup(VALUE obj, VALUE klass, VALUE type); +VALUE rb_obj_class(VALUE); +VALUE rb_singleton_class_clone(VALUE); +void rb_singleton_class_attached(VALUE,VALUE); +void rb_copy_generic_ivar(VALUE,VALUE); +RUBY3_SYMBOL_EXPORT_END() + +static inline void +rb_clone_setup(VALUE clone, VALUE obj) +{ + RUBY3_ASSERT_OR_ASSUME(! RB_SPECIAL_CONST_P(obj)); + RUBY3_ASSERT_OR_ASSUME(! RB_SPECIAL_CONST_P(clone)); + + const VALUE flags = RUBY_FL_PROMOTED0 | RUBY_FL_PROMOTED1 | RUBY_FL_FINALIZE; + rb_obj_setup(clone, rb_singleton_class_clone(obj), + RB_FL_TEST_RAW(obj, ~flags)); + rb_singleton_class_attached(RBASIC_CLASS(clone), clone); + if (RB_FL_TEST(obj, RUBY_FL_EXIVAR)) rb_copy_generic_ivar(clone, obj); +} + +static inline void +rb_dup_setup(VALUE dup, VALUE obj) +{ + RUBY3_ASSERT_OR_ASSUME(! RB_SPECIAL_CONST_P(obj)); + RUBY3_ASSERT_OR_ASSUME(! RB_SPECIAL_CONST_P(dup)); + + rb_obj_setup(dup, rb_obj_class(obj), RB_FL_TEST_RAW(obj, RUBY_FL_DUPPED)); + if (RB_FL_TEST(obj, RUBY_FL_EXIVAR)) rb_copy_generic_ivar(dup, obj); +} + +#endif /* RUBY3_NEWOBJ_H */ |