From: Intransition <transfire@...>
Date: 2011-09-17T03:39:43+09:00
Subject: Re: Can monkey patching be discovered when you require a library?



On Sep 12, 10:52 pm, Nick Klauer <kla...@gmail.com> wrote:
> Is it possible to know whether a method, class, or instance was overridden
> by another when you require 'said_gem' in (i.e. monkeypatched)?  I'm
> thinking something that would let gem users know if a gem is going to
> override core methods or attrs?

Turn on warnings.

  $ cat t.rb
  class String
    def to_s; end
  end

  $ ruby -w t.rb
  t.rb:2: warning: method redefined; discarding old to_s