src/Operator/Comparator/NotNullOperator.php
<?php declare(strict_types=1);
/**
* Copyright © Thomas Klein, All rights reserved.
* See LICENSE bundled with this library for license details.
*/
namespace LogicTree\Operator\Comparator;
/**
* The NULL:
* The output is "true" if $expression is not null
*/
final class NotNullOperator extends AbstractCompareOne
{
public const CODE = 'notnull';
public function executeComparison(mixed $expression): bool
{
return $expression !== null;
}
}