From: Brian Marick <marick@...>
Date: 2007-11-16T08:07:51+09:00
Subject: Re: instance variables as class variable ?

@x is an instance variable belonging to the object-that-is-a-class,  
not to an-object-that-is-an-instance-of-that-class. I cover this with  
some helpful pictures here:
<http://www.visibleworkings.com/little-ruby/>

Drawing pictures really helps in figuring out what's going on.


On Nov 15, 2007, at 2:15 PM, wbsurfver@yahoo.com wrote:

>
> I'm trying to get a handle on why the following code works by printing
> out 'frog'
> because @x looks like instance variable syntax. I know that some of
> these things don't work the way I'd expect.
>
> class Test
>  @x = 'frog'
>
>   class << self
>   attr_reader :x
>   end
>
> end
>
> puts Test.x

-----
Brian Marick, independent consultant
Mostly on agile methods with a testing slant
www.exampler.com, www.exampler.com/blog, twitter.com/marick



-----
Brian Marick, independent consultant
Mostly on agile methods with a testing slant
www.exampler.com, www.exampler.com/blog, twitter.com/marick