lib/predicate/processors/to_s.rb in predicate-2.2.1 vs lib/predicate/processors/to_s.rb in predicate-2.3.0

@@ -79,9 +79,10 @@
 
   protected
 
     def to_literal(x)
       case x
+      when Placeholder then "$#{x.object_id}"
       when Array then "{" << x.map{|y| to_literal(y) }.join(',') << "}"
       else x.inspect
       end
     end