/home/smartonegroup/public_html/veroserv/vendor/league/csv/src/Query/Constraint/Offset.php
<?php
/**
* League.Csv (https://csv.thephpleague.com)
*
* (c) Ignace Nyamagana Butera <nyamsprod@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
declare(strict_types=1);
namespace League\Csv\Query\Constraint;
use CallbackFilterIterator;
use Closure;
use Iterator;
use League\Csv\MapIterator;
use League\Csv\Query;
/**
* Enable filtering a record based on its offset.
*
* When used with PHP's array_filter with the ARRAY_FILTER_USE_BOTH flag
* the record value WILL NOT BE taken into account
*/
final class Offset implements Query\Predicate
{
/**
* @throws Query\QueryException
*/
private function __construct(
public readonly Comparison|Closure $operator,
public readonly mixed $value,
) {
if (!$this->operator instanceof Closure) {
$this->operator->accept($this->value);
}
}
/**
* @throws Query\QueryException
*/
public static function filterOn(
Comparison|Closure|callable|string $operator,
mixed $value = null,
): self {
if ($operator instanceof Closure) {
return new self($operator, null);
}
if (is_callable($operator)) {
return new self(Closure::fromCallable($operator), $value);
}
return new self(
is_string($operator) ? Comparison::fromOperator($operator) : $operator,
$value
);
}
/**
* @throws Query\QueryException
*/
public function __invoke(mixed $value, int|string $key): bool
{
if ($this->operator instanceof Closure) {
return ($this->operator)($key);
}
return $this->operator->compare($key, $this->value);
}
public function filter(iterable $value): Iterator
{
return new CallbackFilterIterator(MapIterator::toIterator($value), $this);
}
}