From: Jonathan Leighton <lists@...>
Date: 2006-03-27T00:30:36+09:00
Subject: Re: Noob: use of the double colon

On Sun, 2006-03-26 at 23:44 +0900, dblack@wobblini.net wrote:
> Hi --
> 
> On Sun, 26 Mar 2006, Jonathan Leighton wrote:
> 
> > While we're on the topic -- I've never exactly understood what placing
> > the double colon at the beginning does? eg...
> >
> > ::FooModule::FOO_CONSTANT
> >
> > ?
> 
> It forces a top-level lookup.  For example:
> 
>    class M
>      class String
>      end
> 
>      def initialize
>        @ms = String.new            # this will be M::String
>        @str = ::String.new("abc")  # this will be top-level string
>      end
>    end
> 
> It's like a / at the beginning of a file path.

Ah okay, thanks very much.

-- 
Jonathan Leighton
http://turnipspatch.com/ | http://jonathanleighton.com/ | http://digital-proof.org/