Allow autoloads to opt out of eager loading

7 files changed, 47 insertions, 36 deletions

diff --git a/actionpack/lib/action_controller/deprecated/integration_test.rb b/actionpack/lib/action_controller/deprecated/integration_test.rb
index 05c8c0f156..86336b6bc4 100644
--- a/actionpack/lib/action_controller/deprecated/integration_test.rb
+++ b/actionpack/lib/action_controller/deprecated/integration_test.rb
@@ -1,4 +1,2 @@
-require "action_dispatch/testing/integration"
-
 ActionController::Integration = ActionDispatch::Integration
 ActionController::IntegrationTest = ActionDispatch::IntegrationTest
diff --git a/actionpack/lib/action_controller/test_case.rb b/actionpack/lib/action_controller/test_case.rb
index 14cd0dc7e0..398ea52495 100644
--- a/actionpack/lib/action_controller/test_case.rb
+++ b/actionpack/lib/action_controller/test_case.rb
@@ -1,7 +1,6 @@
 require 'active_support/test_case'
 require 'rack/session/abstract/id'
 require 'action_controller/metal/testing'
-require 'action_dispatch/test_case'
 
 module ActionController
   class TestRequest < ActionDispatch::TestRequest #:nodoc:
diff --git a/actionpack/lib/action_dispatch.rb b/actionpack/lib/action_dispatch.rb
index e21dbc59cc..d1c191d652 100644
--- a/actionpack/lib/action_dispatch.rb
+++ b/actionpack/lib/action_dispatch.rb
@@ -30,38 +30,47 @@ end
 module ActionDispatch
   extend ActiveSupport::Autoload
 
-  autoload_under "http" do
+  autoload_under 'http' do
     autoload :Request
     autoload :Response
     autoload :StatusCodes
     autoload :Utils
   end
 
-  autoload_under "middleware" do
-    autoload :Callbacks
-    autoload :ParamsParser
-    autoload :Rescue
-    autoload :ShowExceptions
-    autoload :Static
-    autoload :StringCoercion
-  end
+  deferrable do
+    autoload_under 'middleware' do
+      autoload :Callbacks
+      autoload :ParamsParser
+      autoload :Rescue
+      autoload :ShowExceptions
+      autoload :Static
+      autoload :StringCoercion
+    end
 
-  autoload :MiddlewareStack, 'action_dispatch/middleware/stack'
-  autoload :Routing
+    autoload :MiddlewareStack, 'action_dispatch/middleware/stack'
+    autoload :Routing
 
-  autoload :HTML, 'action_controller/vendor/html-scanner'
+    module Http
+      autoload :Headers, 'action_dispatch/http/headers'
+    end
 
-  module Http
-    extend ActiveSupport::Autoload
+    module Session
+      autoload :AbstractStore, 'action_dispatch/middleware/session/abstract_store'
+      autoload :CookieStore,   'action_dispatch/middleware/session/cookie_store'
+      autoload :MemCacheStore, 'action_dispatch/middleware/session/mem_cache_store'
+    end
 
-    autoload :Headers
+    autoload_under 'testing' do
+      autoload :Assertions
+      autoload :Integration
+      autoload :PerformanceTest
+      autoload :TestProcess
+      autoload :TestRequest
+      autoload :TestResponse
+    end
   end
 
-  module Session
-    autoload :AbstractStore, 'action_dispatch/middleware/session/abstract_store'
-    autoload :CookieStore,   'action_dispatch/middleware/session/cookie_store'
-    autoload :MemCacheStore, 'action_dispatch/middleware/session/mem_cache_store'
-  end
+  autoload :HTML, 'action_controller/vendor/html-scanner'
 end
 
 autoload :Mime, 'action_dispatch/http/mime_type'
diff --git a/actionpack/lib/action_dispatch/http/request.rb b/actionpack/lib/action_dispatch/http/request.rb
index 6a52854961..7d1f5a4504 100755
--- a/actionpack/lib/action_dispatch/http/request.rb
+++ b/actionpack/lib/action_dispatch/http/request.rb
@@ -6,6 +6,7 @@ require 'active_support/memoizable'
 require 'active_support/core_ext/array/wrap'
 require 'active_support/core_ext/hash/indifferent_access'
 require 'active_support/core_ext/string/access'
+require 'action_dispatch/http/headers'
 
 module ActionDispatch
   class Request < Rack::Request
@@ -117,7 +118,7 @@ module ActionDispatch
         end
       end
     end
-    
+
     def if_modified_since
       if since = env['HTTP_IF_MODIFIED_SINCE']
         Time.rfc2822(since) rescue nil
diff --git a/actionpack/lib/action_dispatch/test_case.rb b/actionpack/lib/action_dispatch/test_case.rb
deleted file mode 100644
index 0b3dfaae79..0000000000
--- a/actionpack/lib/action_dispatch/test_case.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-require "rack/test"
-require "action_dispatch/testing/assertions"
-require "action_dispatch/testing/integration"
-require "action_dispatch/testing/performance_test"
-require "action_dispatch/testing/test_request"
-require "action_dispatch/testing/test_response"
-require "action_dispatch/testing/integration"
\ No newline at end of file
diff --git a/actionpack/lib/action_dispatch/testing/integration.rb b/actionpack/lib/action_dispatch/testing/integration.rb
index 76021dc059..5c127dfe37 100644
--- a/actionpack/lib/action_dispatch/testing/integration.rb
+++ b/actionpack/lib/action_dispatch/testing/integration.rb
@@ -2,7 +2,6 @@ require 'stringio'
 require 'uri'
 require 'active_support/test_case'
 require 'active_support/core_ext/object/metaclass'
-require 'action_dispatch/testing/test_process'
 require 'rack/test'
 
 module ActionDispatch
diff --git a/activesupport/lib/active_support/dependencies/autoload.rb b/activesupport/lib/active_support/dependencies/autoload.rb
index 973875f895..96ab04c61a 100644
--- a/activesupport/lib/active_support/dependencies/autoload.rb
+++ b/activesupport/lib/active_support/dependencies/autoload.rb
@@ -2,16 +2,18 @@ require "active_support/inflector/methods"
 
 module ActiveSupport
   module Autoload
-
     @@autoloads = {}
     @@under_path = nil
     @@at_path = nil
+    @@autoload_defer = false
 
     def autoload(const_name, path = @@at_path)
       full = [self.name, @@under_path, const_name.to_s, path].compact.join("::")
       location = path || Inflector.underscore(full)
 
-      @@autoloads[const_name] = location
+      unless @@autoload_defer
+        @@autoloads[const_name] = location
+      end
       super const_name, location
     end
 
@@ -29,9 +31,19 @@ module ActiveSupport
       @@at_path = old_path
     end
 
+    def deferrable
+      old_defer, @@autoload_defer = @@autoload_defer, true
+      yield
+    ensure
+      @@autoload_defer = old_defer
+    end
+
     def self.eager_autoload!
-      @@autoloads.values.each {|file| require file }
+      @@autoloads.values.each { |file| require file }
     end
 
+    def autoloads
+      @@autoloads
+    end
   end
-end
\ No newline at end of file
+end