lib/nanoc/base/services/outdatedness_checker.rb in nanoc-4.11.5 vs lib/nanoc/base/services/outdatedness_checker.rb in nanoc-4.11.6

@@ -154,13 +154,16 @@
       contract C::None => Basic
       def basic
         @_basic ||= Basic.new(outdatedness_checker: self, reps: @reps)
       end
 
-      contract C_ITEM_OR_REP, Hamster::Set => C::Bool
+      contract C_OBJ, Hamster::Set => C::Bool
       def outdated_due_to_dependencies?(obj, processed = Hamster::Set.new)
         # Convert from rep to item if necessary
         obj = obj.item if obj.is_a?(Nanoc::Core::ItemRep)
+
+        # Only items can have dependencies
+        return false unless obj.is_a?(Nanoc::Core::Item)
 
         # Get from cache
         if @objects_outdated_due_to_dependencies.key?(obj)
           return @objects_outdated_due_to_dependencies[obj]
         end