lib/repeatable/expression/base.rb in repeatable-0.1.0 vs lib/repeatable/expression/base.rb in repeatable-0.2.0

@@ -1,15 +1,27 @@
 module Repeatable
   module Expression
     class Base
       def self.===(other)
-        other.ancestors.include?(self)
+        case other
+        when Class
+          other.ancestors.include?(self)
+        else
+          super
+        end
       end
 
       def include?(_date)
         fail(
           NotImplementedError,
-          "Don't use Expression::Base directly. Subclasses should implement `#include?`"
+          "Don't use Expression::Base directly. Subclasses must implement `#include?`"
+        )
+      end
+
+      def to_h
+        fail(
+          NotImplementedError,
+          "Don't use Expression::Base directly. Subclasses must implement `#to_h`"
         )
       end
     end
   end
 end