lib/predicate/processors/to_ruby_code.rb in predicate-1.2.0 vs lib/predicate/processors/to_ruby_code.rb in predicate-1.3.0

@@ -48,10 +48,11 @@
     def on_in(sexpr)
       "#{to_ruby_literal(sexpr.values)}.include?(#{apply(sexpr.identifier)})"
     end
 
     def on_intersect(sexpr)
-      "!(#{apply(sexpr.identifier)} & #{to_ruby_literal(sexpr.values)}).empty?"
+      t_x = apply(sexpr.identifier)
+      "!#{t_x}.nil? && !(#{t_x} & #{to_ruby_literal(sexpr.values)}).empty?"
     end
 
     def on_literal(sexpr)
       to_ruby_literal(sexpr.last)
     end