# File lib/active_support/configurable.rb, line 55
      def config_accessor(*names)
        options = names.extract_options!

        names.each do |name|
          reader, line = "def #{name}; config.#{name}; end", __LINE__
          writer, line = "def #{name}=(value); config.#{name} = value; end", __LINE__

          singleton_class.class_eval reader, __FILE__, line
          singleton_class.class_eval writer, __FILE__, line
          class_eval reader, __FILE__, line unless options[:instance_reader] == false
          class_eval writer, __FILE__, line unless options[:instance_writer] == false
        end
      end