• ipaddr
• active_support/core_ext/array/wrap
• active_support/core_ext/kernel/reporting
• active_support/file_update_checker
• active_support/configuration_file
• rails/engine/configuration
• rails/source_annotation_extractor
• action_view/helpers
• action_view/helpers
• rails/application/dummy_config

• 模块 ActionDispatch
• 模块 ActiveSupport
• 模块 Digest
• 模块 Rails
• 类 ActionDispatch::HostAuthorization
• 类 ActiveSupport::Logger
• 类 Rails::Application
• 类 Rails::Application::Configuration