Method optimize

basex-core/src/main/java/org/basex/query/expr/CmpR.java:125–139

(final CompileContext cc)

  }

  @Override
  public Expr optimize(final CompileContext cc) throws QueryException {
    expr = expr.simplifyFor(Simplify.NUMBER, cc);

    final SeqType st = expr.seqType();
    single = st.zeroOrOne() && !st.mayBeWrapped();

    // position() = .1e0 → false()
    if(Function.POSITION.is(expr)) {
      final long mn = Math.max((long) Math.ceil(min), 1), mx = (long) Math.floor(max);
      return cc.replaceWith(this, IntPos.get(mn, mx, info));
    }

    return expr instanceof Value ? cc.preEval(this) : this;
  }

  @Override
  public Bln item(final QueryContext qc, final InputInfo ii) throws QueryException {