cattr_writer (Class)

    # File lib/extlib/class.rb, line 65
      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