From: Christoph <chr_mail@...>
Date: 2005-05-05T03:00:12+09:00
Subject: Re: [RCR] Object#inside_metaclass?

Ara.T.Howard schrieb:

>
> this is very useful for meta-programming:
>
>   jib:~/eg/ruby > cat a.rb
>   class Object
>     def inside_metaclass?
>       klass = Class === self ? self : self.class
>       obj_meta = class << Object; self; end
>       klass.ancestors.include? obj_meta
>     end
>   end
>
>   p inside_metaclass?
>
>   class << self
>     p inside_metaclass?
>   end
>
>   class C
>     p inside_metaclass?
>     class << self
>       p inside_metaclass?
>       class << self
>         p inside_metaclass?
>       end
>     end
>   end
>
>
>   jib:~/eg/ruby > ruby a.rb
>   false
>   true
>   false
>   true
>   true
>
>
> i believe the implementaion is correct iff the following statement is 
> true:
>
>   all meta-classes descend from the meta-class of Object.

That is plain false (at least in my understanding of what
you are trying

   class << Module

>
> -a