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* object.c (rb_obj_singleton_class): new method

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Kernel#singleton_class.  [ruby-core:21702]



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@27049 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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knu 2010-03-25 18:09:57 +00:00
parent bc2088b572
commit cb4d196df1
3 changed files with 34 additions and 0 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Fri Mar 26 03:09:30 2010 Akinori MUSHA <knu@iDaemons.org>
* object.c (rb_obj_singleton_class): new method
Kernel#singleton_class. [ruby-core:21702]
Thu Mar 25 03:52:45 2010 Nobuyoshi Nakada <nobu@ruby-lang.org>
* ext/iconv/charset_alias.rb: update of URL. [ruby-dev:38360]

4
NEWS
View file

@ -82,6 +82,10 @@ with all sufficient information, see the ChangeLog file.
Renamed from Hash#index.
* Kernel#singleton_class
New method.
* ENV.key
Renamed from ENV.index.

25
object.c
View file

@ -160,6 +160,30 @@ rb_obj_class(obj)
return rb_class_real(CLASS_OF(obj));
}
/*
* call-seq:
* obj.singleton_class => class
*
* Returns the singleton class of <i>obj</i>. This method creates
* a new singleton class if <i>obj</i> does not have it.
*
* If <i>obj</i> is <code>nil</code>, <code>true</code>, or
* <code>false</code>, it returns NilClass, TrueClass, or FalseClass,
* respectively.
* If <i>obj</i> is a Fixnum or a Symbol, it raises a TypeError.
*
* Object.new.singleton_class #=> #<Class:#<Object:0xb7ce1e24>>
* String.singleton_class #=> #<Class:String>
* nil.singleton_class #=> NilClass
*/
static VALUE
rb_obj_singleton_class(obj)
VALUE obj;
{
return rb_singleton_class(obj);
}
static void
init_copy(dest, obj)
VALUE dest, obj;
@ -2746,6 +2770,7 @@ Init_Object()
rb_define_method(rb_mKernel, "id", rb_obj_id_obsolete, 0);
rb_define_method(rb_mKernel, "type", rb_obj_type, 0);
rb_define_method(rb_mKernel, "class", rb_obj_class, 0);
rb_define_method(rb_mKernel, "singleton_class", rb_obj_singleton_class, 0);
rb_define_method(rb_mKernel, "clone", rb_obj_clone, 0);
rb_define_method(rb_mKernel, "dup", rb_obj_dup, 0);