initialize_generated_modules

# File activerecord/lib/active_record/attribute_methods.rb, line 28
      def initialize_generated_modules # :nodoc:
        @generated_attribute_methods = Module.new {
          extend Mutex_m

          const_set :AttrNames, Module.new {
            def self.set_name_cache(name, value)
              const_name = "ATTR_#{name}"
              unless const_defined? const_name
                const_set const_name, value.dup.freeze
              end
            end
          }
        }
        @attribute_methods_generated = false
        include @generated_attribute_methods
      end