From: Pit Capitain <pit.capitain@...>
Date: 2008-02-26T17:31:31+09:00
Subject: Re: Monkeypatching is Destroying Ruby

2008/2/25, Clifford Heath <no@spam.please.net>:
> Phlip wrote:
>  > I want .inspect, or whatever, outside my module, to behave normally. But if
>  > you inspect a string while my module is above you on the call stack, I get
>  > my hotwired version of .inspect.
>  > Does anyone have a Ruby Hack which does that yet? How hard would it be?
>
>  It can't be done in Ruby. (...)

I would be *very* careful with sentences like this. Remember, this is
Ruby. This topic has been discussed more than once on the mailing
list. For example look at ruby-talk:244014. Here's the example Phlip
talks about:

  require "import-module-extended"

  module MyModule
    extending(String) do
      def inspect
        return 'shock the monkey'
      end
    end
    def call_show(str)
      show(str)
    end
  end

  class MyClassA
    def call_show(str)
      show(str)
    end
    def show(str)
      p str
    end
  end

  class MyClassB
    include MyModule
    def show(str)
      p str
    end
  end

  MyClassA.new.call_show("hi")  # => "hi"
  MyClassB.new.call_show("hi")  # => shock the monkey

Regards,
Pit

PS: I can't find Phlip's posts in the ruby-talk archives...