From: Phillip Gawlowski <pg@...>
Date: 2010-01-09T04:25:41+09:00
Subject: Re: something strange with CLASS and SCOPE

On 08.01.2010 19:57, Tony Tony wrote:
> There is onething regarding class and scope I felt puzzled for a while.
> Below is my code.
>
>
> class QQ
>    @strange=Array.new
>    def report
>      puts @strange.class
>    end
> end
>
> q=QQ.new
> q.report
>
>  From my understanding, instance variable should be available to every
> method of a specific instance

Only if your instance variables have been initialized, like so:

class QQ
   def initialize # Used by Ruby when you do "QQ.new"
     @array = Array.new
   end

   def report
     puts @array.class
   end
end

q = QQ.new
q.report


(Actually, the class instance gets initialized, and not the instance 
variables, strictly speaking.)

--
Phillip Gawlowski