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<?php
declare(strict_types=1);
namespace Remorhaz\JSON\Path\Runtime\Aggregator;
use Remorhaz\JSON\Data\Value\ArrayValueInterface;
use Remorhaz\JSON\Path\Value\LiteralScalarValue;
use Remorhaz\JSON\Data\Value\ValueInterface;
use function iterator_count;
final class LengthAggregator implements ValueAggregatorInterface
{
public function tryAggregate(ValueInterface $value): ?ValueInterface
if (!$value instanceof ArrayValueInterface) {
return null;
}
$length = iterator_count($value->createChildIterator());
return new LiteralScalarValue($length);
remorhaz /
php-json-path
