Method next

basex-core/src/main/java/org/basex/query/expr/Lookup.java:125–136

()

      Iter rhs;

      @Override
      public Item next() throws QueryException {
        while(true) {
          if(rhs != null) {
            final Item item = qc.next(rhs);
            if(item != null) return item;
          }
          final Item item = qc.next(lhs);
          if(item == null) return null;
          rhs = valueIter(item);
        }
      }

      private Iter valueIter(final Item item) throws QueryException {
        final ValueBuilder vb = new ValueBuilder(qc);