From: "David A. Black" <dblack@...>
Date: 2005-05-05T04:21:21+09:00
Subject: Re: [RCR] Object#inside_metaclass?

Hi --

>  it's sort hard to show in a little code but __logically__ we end up
>  with something like (greatly simplified)
> 
>    class C
> 
>      @trait_defaults = {
>        'class' => { 'a' => 'default_value' },
>        'instance' => { 'a' => 'default_value' },
>      }
> 
>      def C::a

(Just out of curiosity: do you mean to depart from the usual C.a here?
And why? :-)

>        @a = @trait_defaults['class']['a'] unless defined? @a
>        @a
>      end
> 
>      def a
>        @a = @trait_defaults['instance']['a'] unless defined? @a
>        @a
>      end
>    end
> 
>  so i need to know, at the point of definition if we're inside a
>  metaclass to generate the code slightly differently.  all the above
>  is for explanation only and is nothing like real code.

I understand the not real code point, but still, it's showing
something I can't quite follow, namely the @trait_defaults instance
variable in the instance method definition (def a).  Do you mean this
to refer to the class's instance variable?

I'm also not sure where inside_metaclass? would go here.  Can you
rewrite it into pseudo-code looking how it would look if that method
existed?


David

-- 
David A. Black
dblack@wobblini.net