dynamic inheritence

some_object.rb

class SomeObject

    def initialize(object_to_extend)
      @object_to_extend = object_to_extend
    end

    def respond_to?(sym, include_private = false)
      super(sym, include_private) || object_to_extend_responds?(sym) 
    end
    
    def method_missing(sym, *args, &block)
      return object_to_extend.send(sym, *args, &block) if object_to_extend_responds?(sym)
      super(sym, *args, &block)
    end
    
    def object_to_extend_responds?(sym)
      object_to_extend.respond_to?(sym)
    end