1 files changed, 21 insertions, 13 deletions
diff --git a/actionpack/lib/action_view/base.rb b/actionpack/lib/action_view/base.rb
index c3361c9367..c171a5a8f5 100644
--- a/actionpack/lib/action_view/base.rb
+++ b/actionpack/lib/action_view/base.rb
@@ -164,6 +164,9 @@ module ActionView #:nodoc:
   #
   # See the ActionView::Helpers::PrototypeHelper::GeneratorMethods documentation for more details.
   class Base
+    module Subclasses
+    end
+
     include Helpers, Rendering, Partials, ::ERB::Util
 
     extend ActiveSupport::Memoizable
@@ -212,30 +215,35 @@ module ActionView #:nodoc:
       ActionView::PathSet.new(Array(value))
     end
 
+    extlib_inheritable_accessor :helpers
     attr_reader :helpers
 
-    class ProxyModule < Module
-      def initialize(receiver)
-        @receiver = receiver
-      end
+    def self.for_controller(controller)
+      @views ||= {}
 
-      def include(*args)
-        super(*args)
-        @receiver.extend(*args)
-      end
-    end
+      # TODO: Decouple this so helpers are a separate concern in AV just like
+      # they are in AC.
+      if controller.class.respond_to?(:_helper_serial)
+        klass = @views[controller.class._helper_serial] ||= Class.new(self) do
+          Subclasses.const_set(controller.class.name.gsub(/::/, '__'), self)
 
-    def self.for_controller(controller)
-      new(controller.class.view_paths, {}, controller).tap do |view|
-        view.helpers.include(controller._helpers) if controller.respond_to?(:_helpers)
+          if controller.respond_to?(:_helpers)
+            include controller._helpers
+            self.helpers = controller._helpers
+          end
+        end
+      else
+        klass = self
       end
+
+      klass.new(controller.class.view_paths, {}, controller)
     end
 
     def initialize(view_paths = [], assigns_for_first_render = {}, controller = nil, formats = nil)#:nodoc:
       @formats = formats || [:html]
       @assigns = assigns_for_first_render.each { |key, value| instance_variable_set("@#{key}", value) }
       @controller = controller
-      @helpers = ProxyModule.new(self)
+      @helpers = self.class.helpers || Module.new
       @_content_for = Hash.new {|h,k| h[k] = "" }
       self.view_paths = view_paths
     end