Method optimize

basex-core/src/main/java/org/basex/query/expr/Pos.java:161–167

(final CompileContext cc)

  }

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

    final Expr ex = get(expr, CmpOp.EQ, info, cc, this);
    return ex != null ? cc.replaceWith(this, ex) : this;
  }

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