From: Leonardo Francalanci <lfrancalanci@...>
Date: 2005-04-21T23:42:18+09:00
Subject: Re: accessor for Class Variable

> AFAIK there is not, I think you're supposed to access a class variable 
> directly from instances and class methods, and to generally use a 
> constant when possible, wich is visible from outside.
> In general the use case for class attributes accessible from the outside 
> is not that much (in my own experience).

Ok, got it, I changed them into constants.


> Anyway you should be able to write them easily with something like 
> (untested):
> 
> class Class
>   def class_attr sym
>    module_eval "def self.#{sym}() @@#{sym} end"
>    module_eval "def self.#{sym}=(x) @@#{sym}=x end"
>   end
> end
> 
> class C
>   class_attr :foo
> end

Wow, looks like I have to learn a lot of stuff...