# File lib/extlib/class.rb, line 67
  def cattr_writer(*syms)
    options = syms.last.is_a?(Hash) ? syms.pop : {}
    syms.flatten.each do |sym|
      class_eval("unless defined? @@\#{sym}\n@@\#{sym} = nil\nend\n\ndef self.\#{sym}=(obj)\n@@\#{sym} = obj\nend\n", __FILE__, __LINE__ + 1)

      unless options[:instance_writer] == false
        class_eval("def \#{sym}=(obj)\n@@\#{sym} = obj\nend\n", __FILE__, __LINE__ + 1)
      end
    end
  end