From: Massimiliano Mirra <list@...>
Date: 2002-07-08T01:33:04+09:00
Subject: Re: Pre-RCR... nil.empty?

On Sun, Jul 07, 2002 at 10:24:04PM +0900, Dave Thomas wrote:
> Of course, nil.to_a already returns [], so nil#each arguably _should_
> iterate zero times to be consistent with itself, and once you have an
> #each, why not include Enumerable...?

More than once it has happened to me that I was iterating upon an
array many levels of calling apart from where it was generated... or
*should* have been generated.

The runtime error when I tried to iterate on what I thought was an
array and instead was still `nil' helped me greatly to fix the
problem.  I can't imagine how I would have debugged it if it silently
non-iterated.

Massimiliano