From: Donald Luo <donaldluo@...>
Date: 2006-05-27T16:11:34+09:00
Subject: Extend self?

I am a newbie to Ruby. I've found some code in the file dependencies.rb 
within Active Support:

module Dependencies
  extend self
...

I would like to ask what does 'extend self' do here? What's purpose? I 
didn't found any document mentioning such 'self-extension' case.

Cheers,
Donald

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