1 files changed, 5 insertions, 4 deletions
diff --git a/actionpack/lib/abstract_controller/caching.rb b/actionpack/lib/abstract_controller/caching.rb
index d222880922..ce6b757c3c 100644
--- a/actionpack/lib/abstract_controller/caching.rb
+++ b/actionpack/lib/abstract_controller/caching.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module AbstractController
   module Caching
     extend ActiveSupport::Concern
@@ -37,8 +39,7 @@ module AbstractController
       config_accessor :enable_fragment_cache_logging
       self.enable_fragment_cache_logging = false
 
-      class_attribute :_view_cache_dependencies
-      self._view_cache_dependencies = []
+      class_attribute :_view_cache_dependencies, default: []
       helper_method :view_cache_dependencies if respond_to?(:helper_method)
     end
 
@@ -52,9 +53,9 @@ module AbstractController
       self.class._view_cache_dependencies.map { |dep| instance_exec(&dep) }.compact
     end
 
-    protected
+    private
       # Convenience accessor.
-      def cache(key, options = {}, &block)
+      def cache(key, options = {}, &block) # :doc:
         if cache_configured?
           cache_store.fetch(ActiveSupport::Cache.expand_cache_key(key, :controller), options, &block)
         else