From: Robert Dober <robert.dober@...>
Date: 2007-08-02T22:04:26+09:00
Subject: Re: What does this warning actually mean?

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On 8/2/07, Michael T. Richter <ttmrichter@gmail.com> wrote:

Michael I got no clue what you are trying to do here, but maybe the
following is hint enouh, BTW, just do not use class variables ;).
522/23 > cat test1.rb && ruby test1.rb

  class << self
    @@a=42
    def a
      @@a +=1
    end
  end
  puts a
test1.rb:3: warning: class variable access from toplevel singleton method
test1.rb:5: warning: class variable access from toplevel singleton method
test1.rb:5: warning: class variable access from toplevel singleton method
43

---------------------------------------------

523/24 > cat test2.rb && ruby test2.rb

  class << self
    def a
      @a||=42
      @a+=1
    end
  end
  puts a


43

HTH
Robert



-- 
[...] as simple as possible, but no simpler.
-- Attributed to Albert Einstein

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