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Groups > comp.lang.ruby > #2804

Re: Copying parameters to singleton class

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Try something like this:

   def using(new_options)
      Class.new(self) do
        old_options = superclass.options
        @options = old_options.merge(new_options).select do |key|
          old_options.has_key?(key)
        end.freeze
      end
    end

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Copying parameters to singleton class Lars Olsson <lasso@lassoweb.se> - 2011-04-11 02:19 -0700
  Re: Copying parameters to singleton class Robert Klemme <shortcutter@googlemail.com> - 2011-04-11 04:34 -0500
    Re: Copying parameters to singleton class 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-11 21:21 -0500
    Re: Copying parameters to singleton class 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-11 21:05 -0500
      Re: Copying parameters to singleton class Robert Klemme <shortcutter@googlemail.com> - 2011-04-12 01:53 -0500
        Re: Copying parameters to singleton class 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-12 13:31 -0500
    Re: Copying parameters to singleton class 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-12 19:08 -0500
  Re: Copying parameters to singleton class Jesús Gabriel y Galán <jgabrielygalan@gmail.com> - 2011-04-11 04:36 -0500
    Re: Copying parameters to singleton class Lars Olsson <lasso@lassoweb.se> - 2011-04-11 02:53 -0700
  Re: Copying parameters to singleton class 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-11 21:48 -0500
    Re: Copying parameters to singleton class Robert Klemme <shortcutter@googlemail.com> - 2011-04-12 02:00 -0500
      Re: Copying parameters to singleton class Lars Olsson <lasso@lassoweb.se> - 2011-04-12 01:25 -0700
        Re: Copying parameters to singleton class Robert Klemme <shortcutter@googlemail.com> - 2011-04-12 03:51 -0500
        Re: Copying parameters to singleton class 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-12 13:14 -0500
          Re: Copying parameters to singleton class 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-12 13:38 -0500
      Re: Copying parameters to singleton class 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-12 13:43 -0500
  Re: Copying parameters to singleton class 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-12 19:29 -0500
    Re: Copying parameters to singleton class Lars Olsson <lasso@lassoweb.se> - 2011-04-13 01:49 -0700
  Re: Copying parameters to singleton class 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-13 19:32 -0500
  Re: Copying parameters to singleton class 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-13 19:49 -0500
    Re: Copying parameters to singleton class 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-13 20:09 -0500
      Re: Copying parameters to singleton class Lars Olsson <lasso@lassoweb.se> - 2011-04-14 01:33 -0700
        Re: Copying parameters to singleton class 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-14 12:07 -0500

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