lib/bmg/operator/allbut.rb in bmg-0.3.0 vs lib/bmg/operator/allbut.rb in bmg-0.4.0

@@ -39,9 +39,13 @@
             seen[allbuted] = true
           end
         end
       end
 
+      def to_ast
+        [:allbut, operand.to_ast, butlist.dup]
+      end
+
     protected ### optimization
 
       def _restrict(type, predicate)
         operand.restrict(predicate).allbut(butlist)
       end