From: Robert Klemme <shortcutter@...>
Date: 2010-01-28T18:41:29+09:00
Subject: Re: Add a class variable with a mixin

2010/1/28 Robert Klemme <shortcutter@googlemail.com>:
> 2010/1/28 Gene Shuman <geneshuman@gmail.com>:
>> Actualy, I can do that.  I just need to modify it externally afterwards
>> by name.
>
> What exactly are you trying to do?  Here's one way:
>
> module Foo
>  attr_accessor :bar
> end
>
> String.extend Foo
>
> irb(main):009:0> String.bar = "nonsense"
> => "nonsense"
> irb(main):010:0> String.bar
> => "nonsense"
> irb(main):011:0>

PS: this is not a class variable in the "classical" sense, e.g. a
variable starting with "@@" (e.g. @@bar).  It's an instance variable
of the class.

Kind regards

robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/