From: blogger <blogger@...>
Date: 2007-12-07T03:00:46+09:00
Subject: Preferred way to overwrite an object method?

I have an app with source code I really don't want to touch, which has
an object method I want to be able to overwrite in a certain task.
(No need to restore the function.)  My current technique is as
follows:

In the application:
class C
  def m
    puts "barf"
  end
end

In my module file:
module M
  def self.included(mod)
    mod.module_eval <<-EOF
      def m
        puts "c001c0de"
      end
    EOF
  end
end

In the rake file:
C:send(:include, M)

Now I REALLY don't like module_eval(string).  Is there a preferred
method to achieve this result?