1 files changed, 0 insertions, 119 deletions
diff --git a/actionpack/lib/action_controller/middleware_stack.rb b/actionpack/lib/action_controller/middleware_stack.rb
deleted file mode 100644
index b739a6d72d..0000000000
--- a/actionpack/lib/action_controller/middleware_stack.rb
+++ /dev/null
@@ -1,119 +0,0 @@
-module ActionController
-  class MiddlewareStack < Array
-    class Middleware
-      def self.new(klass, *args, &block)
-        if klass.is_a?(self)
-          klass
-        else
-          super
-        end
-      end
-
-      attr_reader :args, :block
-
-      def initialize(klass, *args, &block)
-        @klass = klass
-
-        options = args.extract_options!
-        if options.has_key?(:if)
-          @conditional = options.delete(:if)
-        else
-          @conditional = true
-        end
-        args << options unless options.empty?
-
-        @args = args
-        @block = block
-      end
-
-      def klass
-        if @klass.respond_to?(:call)
-          @klass.call
-        elsif @klass.is_a?(Class)
-          @klass
-        else
-          @klass.to_s.constantize
-        end
-      rescue NameError
-        @klass
-      end
-
-      def active?
-        return false unless klass
-
-        if @conditional.respond_to?(:call)
-          @conditional.call
-        else
-          @conditional
-        end
-      end
-
-      def ==(middleware)
-        case middleware
-        when Middleware
-          klass == middleware.klass
-        when Class
-          klass == middleware
-        else
-          klass == middleware.to_s.constantize
-        end
-      end
-
-      def inspect
-        str = klass.to_s
-        args.each { |arg| str += ", #{arg.inspect}" }
-        str
-      end
-
-      def build(app)
-        if block
-          klass.new(app, *build_args, &block)
-        else
-          klass.new(app, *build_args)
-        end
-      end
-
-      private
-
-        def build_args
-          Array(args).map { |arg| arg.respond_to?(:call) ? arg.call : arg }
-        end
-    end
-
-    def initialize(*args, &block)
-      super(*args)
-      block.call(self) if block_given?
-    end
-
-    def insert(index, *args, &block)
-      index = self.index(index) unless index.is_a?(Integer)
-      middleware = Middleware.new(*args, &block)
-      super(index, middleware)
-    end
-
-    alias_method :insert_before, :insert
-
-    def insert_after(index, *args, &block)
-      index = self.index(index) unless index.is_a?(Integer)
-      insert(index + 1, *args, &block)
-    end
-
-    def swap(target, *args, &block)
-      insert_before(target, *args, &block)
-      delete(target)
-    end
-
-    def use(*args, &block)
-      middleware = Middleware.new(*args, &block)
-      push(middleware)
-    end
-
-    def active
-      find_all { |middleware| middleware.active? }
-    end
-
-    def build(app)
-      active.reverse.inject(app) { |a, e| e.build(a) }
-    end
-  end
-end