1 files changed, 16 insertions, 0 deletions
diff --git a/actionview/lib/action_view/lookup_context.rb b/actionview/lib/action_view/lookup_context.rb
index 2a1f4378f5..86afedaa2d 100644
--- a/actionview/lib/action_view/lookup_context.rb
+++ b/actionview/lib/action_view/lookup_context.rb
@@ -69,6 +69,18 @@ module ActionView
       def self.clear
         @details_keys.clear
       end
+
+      def self.empty?; @details_keys.empty?; end
+
+      def self.digest_caches
+        @details_keys.values.map(&:digest_cache)
+      end
+
+      attr_reader :digest_cache
+
+      def initialize
+        @digest_cache = Concurrent::Map.new
+      end
     end
 
     # Add caching behavior on top of Details.
@@ -194,6 +206,10 @@ module ActionView
       self.view_paths = view_paths
     end
 
+    def digest_cache
+      details_key.digest_cache
+    end
+
     def initialize_details(target, details)
       registered_details.each do |k|
         target[k] = details[k] || Accessors::DEFAULT_PROCS[k].call