From: Dave Burt <dave@...>
Date: 2005-04-30T09:04:28+09:00
Subject: Re: advice requested / attributes.rb

"Ara.T.Howard" <Ara.T.Howard@noaa.gov> asked:
>
>   class A
>     class_attributes %w( x y z )
>     x 4
>     y 1
>     z 1
>   end
>
>   class B < A
>     y 2
>   end
> <snip>
> so, as you can see these class attributes are 'inherited' instance values.
> this is done using class instance vars and a search up the ancestors list 
> if an
> attribute has not been set (defined?) in a class.
>
> questions :
>
>   - does this sit o.k. with people : does it violate pols?  i think it's 
> quite
>     natural but that's me ;-)

POLS belongs to Matz, doesn't it? :)

>   - what do i call it?  for now i'm calling it an class 'inherited' 
> variable
>     since it's not really a class instance (@) var nor a hierarchy (@@) 
> var.

I don't see that it's clear that these are not @@ variables - wouldn't that 
be the obvious implementation for that behaviour, and for something called 
"class attributes"?

Cheers,
Dave