From: William Morgan <wmorgan-ruby-talk@...>
Date: 2005-07-09T03:57:31+09:00
Subject: Re: Inheriting Array and slice() behaviour

Excerpts from Austin Ziegler's mail of  7 Jul 2005 (EDT):
> No, from a design level, Expression isn't an Array if it doesn't
> accept #initialize with no arguments.

I'm sorry, that simply isn't true, under any kind of reasonable
philosophy.

  class InducingArray < Array
    def initialize(klass)
      @klass = klass
    end
                                                                                
    def [] *a
      if a.length == 1
        @klass.induced_from super
      else
        super
      end
    end
  end

-- 
William <wmorgan-ruby-talk@masanjin.net>