From: Logan Capaldo <logancapaldo@...>
Date: 2007-05-02T08:11:04+09:00
Subject: Re: simple subclass question

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On 5/1/07, Ball, Donald A Jr (Library) <donald.ball@nashville.gov> wrote:
>
>
> class A
>   class << self
>     @var = 'foo'
>     attr_accessor :var
>   end
> end
>
> to no avail. Also tried doing it in an initialize method. I'm still
> missing something key, I think.


class A
  @var = 'foo'
  class << self
     attr_accessor :var
  end
end

(warning, the following explanation is not really correct)
class << self is sort of A's class (the class of the class) (It's actually
A's singleton class). By putting @var='foo' inside class << self you set the
class of A's instance var @var to 'foo' not A's @var to foo.

- donald
>
>

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