AS::Concern redefines "include" to lazy include modules as dependencies

actionpack/lib/action_controller/abstract/benchmarker.rb

@@ -2,7 +2,7 @@ module AbstractController
   module Benchmarker
     extend ActiveSupport::Concern
 
-    depends_on Logger
+    include Logger
 
     module ClassMethods
       def benchmark(title, log_level = ::Logger::DEBUG, use_silence = true)

actionpack/lib/action_controller/abstract/callbacks.rb

@@ -2,7 +2,7 @@ module AbstractController
   module Callbacks
     extend ActiveSupport::Concern
 
-    depends_on ActiveSupport::NewCallbacks
+    include ActiveSupport::NewCallbacks
 
     included do
       define_callbacks :process_action, "response_body"

actionpack/lib/action_controller/abstract/helpers.rb

@@ -2,7 +2,7 @@ module AbstractController
   module Helpers
     extend ActiveSupport::Concern
 
-    depends_on Renderer
+    include Renderer
 
     included do
       extlib_inheritable_accessor :master_helper_module

actionpack/lib/action_controller/abstract/layouts.rb

@@ -2,7 +2,7 @@ module AbstractController
   module Layouts
     extend ActiveSupport::Concern
 
-    depends_on Renderer
+    include Renderer
 
     included do
       extlib_inheritable_accessor :_layout_conditions

actionpack/lib/action_controller/abstract/renderer.rb

@@ -4,7 +4,7 @@ module AbstractController
   module Renderer
     extend ActiveSupport::Concern
 
-    depends_on AbstractController::Logger
+    include AbstractController::Logger
 
     included do
       attr_internal :formats

actionpack/lib/action_controller/base/chained/flash.rb

@@ -29,7 +29,7 @@ module Flash
     extend ActiveSupport::Concern
 
     # TODO : Remove the defined? check when new base is the main base
-    depends_on Session if defined?(ActionController::Http)
+    include Session if defined?(ActionController::Http)
 
     included do
       # TODO : Remove the defined? check when new base is the main base

actionpack/lib/action_controller/base/filter_parameter_logging.rb

@@ -4,13 +4,11 @@ module FilterParameterLogging
 
     # TODO : Remove the defined? check when new base is the main base
     if defined?(ActionController::Http)
-      depends_on AbstractController::Logger
+      include AbstractController::Logger
     end
 
     included do
-      if defined?(ActionController::Http)
-        include InstanceMethodsForNewBase
-      end
+      include InstanceMethodsForNewBase
     end
 
     module ClassMethods

actionpack/lib/action_controller/base/request_forgery_protection.rb

@@ -7,7 +7,7 @@ module RequestForgeryProtection
 
     # TODO : Remove the defined? check when new base is the main base
     if defined?(ActionController::Http)
-      depends_on AbstractController::Helpers, Session
+      include AbstractController::Helpers, Session
     end
 
     included do

actionpack/lib/action_controller/base/streaming.rb

@@ -6,7 +6,7 @@ module Streaming
 
     # TODO : Remove the defined? check when new base is the main base
     if defined?(ActionController::Http)
-      depends_on ActionController::Renderer
+      include ActionController::Renderer
     end
 
     DEFAULT_SEND_FILE_OPTIONS = {

actionpack/lib/action_controller/base/verification.rb

@@ -4,7 +4,7 @@ module Verification #:nodoc:
 
     # TODO : Remove the defined? check when new base is the main base
     if defined?(ActionController::Http)
-      depends_on AbstractController::Callbacks, Session, Flash, Renderer
+      include AbstractController::Callbacks, Session, Flash, Renderer
     end
 
     # This module provides a class-level method for specifying that certain

actionpack/lib/action_controller/new_base/conditional_get.rb

@@ -2,7 +2,7 @@ module ActionController
   module ConditionalGet
     extend ActiveSupport::Concern
 
-    depends_on RackConvenience
+    include RackConvenience
 
     # Sets the etag, last_modified, or both on the response and renders a
     # "304 Not Modified" response if the request is already fresh.

actionpack/lib/action_controller/new_base/helpers.rb

@@ -6,7 +6,7 @@ module ActionController
   module Helpers
     extend ActiveSupport::Concern
 
-    depends_on AbstractController::Helpers
+    include AbstractController::Helpers
 
     included do
       # Set the default directory for helpers

actionpack/lib/action_controller/new_base/layouts.rb

@@ -2,8 +2,8 @@ module ActionController
   module Layouts
     extend ActiveSupport::Concern
 
-    depends_on ActionController::Renderer
-    depends_on AbstractController::Layouts
+    include ActionController::Renderer
+    include AbstractController::Layouts
 
     module ClassMethods
       def _implied_layout_name

actionpack/lib/action_controller/new_base/render_options.rb

@@ -39,7 +39,7 @@ def render_to_body(options)
   module RenderOption #:nodoc:
     def self.extended(base)
       base.extend ActiveSupport::Concern
-      base.depends_on ::ActionController::RenderOptions
+      base.send :include, ::ActionController::RenderOptions
 
       def base.register_renderer(name)
         included { _add_render_option(name) }
@@ -94,10 +94,10 @@ def _render_update(proc, options)
     module All
       extend ActiveSupport::Concern
 
-      depends_on ActionController::Renderers::Json
-      depends_on ActionController::Renderers::Js
-      depends_on ActionController::Renderers::Xml
-      depends_on ActionController::Renderers::RJS
+      include ActionController::Renderers::Json
+      include ActionController::Renderers::Js
+      include ActionController::Renderers::Xml
+      include ActionController::Renderers::RJS
     end
   end
 end

actionpack/lib/action_controller/new_base/renderer.rb

@@ -2,7 +2,7 @@ module ActionController
   module Renderer
     extend ActiveSupport::Concern
 
-    depends_on AbstractController::Renderer
+    include AbstractController::Renderer
 
     def process_action(*)
       self.formats = request.formats.map {|x| x.to_sym}

actionpack/lib/action_controller/new_base/session.rb

@@ -2,7 +2,7 @@ module ActionController
   module Session
     extend ActiveSupport::Concern
 
-    depends_on RackConvenience
+    include RackConvenience
 
     def session
       @_request.session

actionpack/lib/action_controller/new_base/testing.rb

@@ -2,7 +2,7 @@ module ActionController
   module Testing
     extend ActiveSupport::Concern
 
-    depends_on RackConvenience
+    include RackConvenience
 
     # OMG MEGA HAX
     def process_with_new_base_test(request, response)

actionpack/lib/action_controller/new_base/url_for.rb

@@ -2,7 +2,7 @@ module ActionController
   module UrlFor
     extend ActiveSupport::Concern
 
-    depends_on RackConvenience
+    include RackConvenience
 
     def process_action(*)
       initialize_current_url

activerecord/lib/active_record/validations.rb

@@ -102,8 +102,8 @@ def generate_message(attribute, message = :invalid, options = {})
   module Validations
     extend ActiveSupport::Concern
 
-    depends_on ActiveSupport::Callbacks
-    depends_on ActiveModel::Validations
+    include ActiveSupport::Callbacks
+    include ActiveModel::Validations
 
     included do
       alias_method_chain :save, :validation

activesupport/lib/active_support/concern.rb

@@ -19,5 +19,7 @@ def included(base = nil, &block)
         super
       end
     end
+
+    alias_method :include, :depends_on
   end
 end

activesupport/test/concern_test.rb

@@ -34,7 +34,7 @@ def baz
   module Bar
     extend ActiveSupport::Concern
 
-    depends_on Baz
+    include Baz
 
     def bar
       "bar"
@@ -48,7 +48,7 @@ def baz
   module Foo
     extend ActiveSupport::Concern
 
-    depends_on Bar, Baz
+    include Bar, Baz
   end
 
   def setup
@@ -90,7 +90,7 @@ def test_modules_dependencies_are_met
     assert @klass.included_modules.include?(ConcernTest::Bar)
   end
 
-  def test_depends_on_with_multiple_modules
+  def test_dependencies_with_multiple_modules
     @klass.send(:include, Foo)
     assert_equal [ConcernTest::Foo, ConcernTest::Bar, ConcernTest::Baz::InstanceMethods, ConcernTest::Baz], @klass.included_modules[0..3]
   end