From: Daniel DeLorme <dan-ml@...42.com>
Date: 2007-05-25T20:59:45+09:00
Subject: Re: Replacement idiom for "list_or_nil.to_a"?

Rich Morin wrote:
> will fail.  As a workaround, I've been using this idiom:
> 
>   list_or_nil.to_a.each do |value|
>     ...
>   end
> 
> However, I gather that this will soon be deprecated:

Object#to_a will be deprecated but not nil.to_a, so the
idiom you have above works just fine. It will break if
list_or_nil is a non-array non-nil value but I think
that's as it should be.

Daniel