lib/predicate/nodes/intersect.rb in predicate-1.2.0 vs lib/predicate/nodes/intersect.rb in predicate-1.3.0

@@ -20,7 +20,12 @@
 
     def constant_variables
       values.size == 1 ? free_variables : []
     end
 
+    def evaluate(tuple)
+      t_x = left.evaluate(tuple)
+      t_x && !(tx & right.evaluate(tuple)).empty?
+    end
+
   end
 end