From: David Alan Black <dblack@...>
Date: 2001-12-12T01:43:55+09:00
Subject: [ruby-talk:28241] Re: Class vars overridden in subclasses?

Hello --

On Wed, 12 Dec 2001 herman_graal@europe.com wrote:

> Hi,
>
> Ruby looks like a very fun language.
>
> However, I can't understand why the super class is affected in the code below:
>
> class Super
>   @@a = 1
>   def m
>     @@a
>   end
> end
>
> class Sub < Super
>   @@a = 2
>   def m
>     @@a
>   end
> end
>
> p Sub.new.m      # gives 2 which is ok
> p Super.new.m    # gives 2 which I don't understand
>
> Can someone help me?

See Guy's answer, also if interested have a look at the thread
starting at:

http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/19506


David

-- 
David Alan Black
home: dblack@candle.superlink.net
work: blackdav@shu.edu
Web:  http://pirate.shu.edu/~blackdav