From: Chris Pine <nemo@...>
Date: 2003-01-03T10:01:25+09:00
Subject: Re: How to call overridden methods (finally!)

Actually, here's another way to call the "super" of a method, but it's less
general than my first solution.

  class Foo
    def to_s
      'just another Foo'
    end
  end

  class Bar < Foo
    def to_s
      'proud to be a Bar'
    end

    def foo_to_s
      alias :__temp_to_s__ :to_s
      Bar.module_eval 'def to_s; super; end'
      super_to_s = to_s
      alias :to_s :__temp_to_s__
      super_to_s
    end
  end

  puts Bar.new.to_s
  puts Bar.new.foo_to_s

I'm just posting this because I asked about it a few weeks back and was told
it was impossible to call an overridden method in a base class.  It isn't.
I remember someone else who wanted to call the super of one method from
another but never figured out how to do it, and no solution was ever
presented, so here are a few ideas for him as well.

Chris