From: "Mauricio Fernández" <mfp@...>
Date: 2005-11-05T18:14:14+09:00
Subject: Re: what does "class << self" do?

On Sat, Nov 05, 2005 at 04:42:09PM +0900, Trans wrote:
> These are equiv.
> 
>   class Base
>     def self.ameth
>       # ...
>     end
>   end
> 
> 
>   class Base
>     class << self
>       def ameth
>         # ...
>       end
>     end
>   end
[...]

But

    class A
      B = 1
      def self.foo; B end
      class << self; def bar; B end end
    end
    o = []
    o << A.foo
    o << A.bar
    class << A; B = 2 end
    o << A.foo
    o << A.bar		# => [1, 1, 1, 2]


-- 
Mauricio Fernandez