Method item

basex-core/src/main/java/org/basex/query/func/fn/FnError.java:20–27

(final QueryContext qc, final InputInfo ii)

 */
public final class FnError extends StandardFunc {
  @Override
  public Item item(final QueryContext qc, final InputInfo ii) throws QueryException {
    final QNm code = toQNmOrNull(arg(0), qc);
    final String description = toStringOrNull(arg(1), qc);
    final Value value = defined(2) ? arg(2).value(qc) : null;
    throw new QueryException(info, code != null ? code : FUNERR1.qname(),
      description != null ? description : FUNERR1.message()).value(value);
  }

  @Override
  public boolean vacuous() {