Reorganize autoloads:

  * A new module (ActiveSupport::Autoload) is provide that extends
    autoloading with new behavior.
  * All autoloads in modules that have extended ActiveSupport::Autoload
    will be eagerly required in threadsafe environments
  * Autoloads can optionally leave off the path if the path is the same
    as full_constant_name.underscore
  * It is possible to specify that a group of autoloads live under an
    additional path. For instance, all of ActionDispatch's middlewares
    are ActionDispatch::MiddlewareName, but they live under 
    "action_dispatch/middlewares/middleware_name"
  * It is possible to specify that a group of autoloads are all found
    at the same path. For instance, a number of exceptions might all
    be declared there.
  * One consequence of this is that testing-related constants are not
    autoloaded. To get the testing helpers for a given component,
    require "component_name/test_case". For instance, "action_controller/test_case".
  * test_help.rb, which is automatically required by a Rails application's
    test helper, requires the test_case.rb for all active components, so
    this change will not be disruptive in existing or new applications.

1 files changed, 29 insertions, 26 deletions

diff --git a/activesupport/lib/active_support/autoload.rb b/activesupport/lib/active_support/autoload.rb
index 63f7338a68..e57cf24b25 100644
--- a/activesupport/lib/active_support/autoload.rb
+++ b/activesupport/lib/active_support/autoload.rb
@@ -1,28 +1,31 @@
+require "active_support/dependencies/autoload"
+
 module ActiveSupport
-  autoload :BacktraceCleaner, 'active_support/backtrace_cleaner'
-  autoload :Base64, 'active_support/base64'
-  autoload :BasicObject, 'active_support/basic_object'
-  autoload :Benchmarkable, 'active_support/benchmarkable'
-  autoload :BufferedLogger, 'active_support/buffered_logger'
-  autoload :Cache, 'active_support/cache'
-  autoload :Callbacks, 'active_support/callbacks'
-  autoload :Concern, 'active_support/concern'
-  autoload :Configurable, 'active_support/configurable'
-  autoload :DependencyModule, 'active_support/dependency_module'
-  autoload :DeprecatedCallbacks, 'active_support/deprecated_callbacks'
-  autoload :Deprecation, 'active_support/deprecation'
-  autoload :Gzip, 'active_support/gzip'
-  autoload :Inflector, 'active_support/inflector'
-  autoload :Memoizable, 'active_support/memoizable'
-  autoload :MessageEncryptor, 'active_support/message_encryptor'
-  autoload :MessageVerifier, 'active_support/message_verifier'
-  autoload :Multibyte, 'active_support/multibyte'
-  autoload :OptionMerger, 'active_support/option_merger'
-  autoload :OrderedHash, 'active_support/ordered_hash'
-  autoload :OrderedOptions, 'active_support/ordered_options'
-  autoload :Notifications, 'active_support/notifications'
-  autoload :Rescuable, 'active_support/rescuable'
-  autoload :SecureRandom, 'active_support/secure_random'
-  autoload :StringInquirer, 'active_support/string_inquirer'
-  autoload :XmlMini, 'active_support/xml_mini'
+  extend ActiveSupport::Autoload
+
+  autoload :BacktraceCleaner
+  autoload :Base64
+  autoload :BasicObject
+  autoload :Benchmarkable
+  autoload :BufferedLogger
+  autoload :Cache
+  autoload :Callbacks
+  autoload :Concern
+  autoload :Configurable
+  autoload :DeprecatedCallbacks
+  autoload :Deprecation
+  autoload :Gzip
+  autoload :Inflector
+  autoload :Memoizable
+  autoload :MessageEncryptor
+  autoload :MessageVerifier
+  autoload :Multibyte
+  autoload :OptionMerger
+  autoload :OrderedHash
+  autoload :OrderedOptions
+  autoload :Notifications
+  autoload :Rescuable
+  autoload :SecureRandom
+  autoload :StringInquirer
+  autoload :XmlMini
 end