From: Ryan Davis <ryand-ruby@...>
Date: 2011-06-14T18:52:14+09:00
Subject: Re: A way to find out when a constant gets defined?


On Jun 14, 2011, at 02:32 , Josh Cheek wrote:

> # When I load irb with my app, Psych is somehow defined
> $ bundle exec irb
> ruby-1.9.2-p180 :001 > Psych
> => Psych
> ruby-1.9.2-p180 :002 > exit

6478 % gem19 which psych
/Users/ryan/.multiruby/install/1.9.2-p136/lib/ruby/1.9.1/psych

>> require 'psych'
=> true
>> $".grep(/psych/i).map { |s| File.dirname File.dirname s }.uniq
=> ["/Users/ryan/.multiruby/install/1.9.2-p136/lib/ruby/1.9.1", "/Users/ryan/.multiruby/install/1.9.2-p136/lib/ruby/1.9.1/psych", "/Users/ryan/.multiruby/install/1.9.2-p136/lib/ruby"]

Psych ships with 1.9