Method next

basex-core/src/main/java/org/basex/query/expr/Expr.java:145–161

()

      private Iter unwrapped;

      @Override
      public Item next() throws QueryException {
        while(true) {
          if(unwrapped == null) {
            final Item item = iter.next();
            if(item == null) return null;
            if(item instanceof final JNode jnode) {
              unwrapped = jnode.value.unwrappedIter(qc);
            } else {
              return item;
            }
          }
          final Item item = unwrapped.next();
          if(item != null) return item;
          unwrapped = null;
        }
      }
    };
  }