newobj.h File Reference

(892c46283a5ea4179500d951c9d4866c0051f27b)

Defines #NEWOBJ. More...

#include "ruby/internal/attr/deprecated.h"
#include "ruby/internal/cast.h"
#include "ruby/internal/core/rbasic.h"
#include "ruby/internal/dllexport.h"
#include "ruby/internal/fl_type.h"
#include "ruby/internal/special_consts.h"
#include "ruby/internal/value.h"
#include "ruby/assert.h"

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Macros
#define	OBJSETUP   rb_obj_setup
	Old name of rb_obj_setup. More...
#define	CLONESETUP   rb_clone_setup
	Old name of rb_clone_setup. More...
#define	DUPSETUP   rb_dup_setup
	Old name of rb_dup_setup. More...

Functions
VALUE	rb_obj_setup (VALUE obj, VALUE klass, VALUE type)
	Fills common fields in the object. More...
VALUE	rb_obj_class (VALUE obj)
	Queries the class of an object. More...
VALUE	rb_singleton_class_clone (VALUE obj)
	Clones a singleton class. More...
void	rb_singleton_class_attached (VALUE klass, VALUE obj)
	Attaches a singleton class to its corresponding object. More...
void	rb_copy_generic_ivar (VALUE clone, VALUE obj)
	Copies the list of instance variables. More...
static void	rb_clone_setup (VALUE clone, VALUE obj)
static void	rb_dup_setup (VALUE dup, VALUE obj)

Detailed Description

Defines #NEWOBJ.

Author

Ruby developers ruby-.nosp@m.core.nosp@m.@ruby.nosp@m.-lan.nosp@m.g.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 RBIMPL or rbimpl 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.

Definition in file newobj.h.

Function Documentation

rb_clone_setup()

static void rb_clone_setup ( VALUE  clone, VALUE  obj  )

inlinestatic

Deprecated:

Not sure exactly when but at some time, the implementation of Object#clone stopped using this function.

It remained untouched for a while, and then @shyouhei realised that they are no longer doing the same thing. It seems nobody seriously uses this function any longer. Let's just abandon it.

Parameters

[out]	clone	The destination object.
[in]	obj	The source object.

Definition at line 124 of file newobj.h.

rb_copy_generic_ivar()

void rb_copy_generic_ivar	(	VALUE	clone,
		VALUE	obj
	)

Copies the list of instance variables.

3rd parties need not know, but there are several ways to store an object's instance variables, depending on its internal structure. This function makes sense when either of the passed objects are using so-called "generic" backend storage. This distinction is purely an implementation detail of rb_clone_setup(). People need not be aware of this working behind-the-scenes.

Parameters

[out]	clone	The destination object.
[in]	obj	The source object.

Definition at line 2048 of file variable.c.

Referenced by rb_hash_dup().

rb_dup_setup()

static void rb_dup_setup ( VALUE  dup, VALUE  obj  )

inlinestatic

Deprecated:

Not sure exactly when but at some time, the implementation of Object#dup stopped using this function.

It remained untouched for a while, and then @shyouhei realised that they are no longer the same thing. It seems nobody seriously uses this function any longer. Let's just abandon it.

Parameters

[out]	dup	The destination object.
[in]	obj	The source object.

Definition at line 143 of file newobj.h.