编辑 IsEmpty.php - 文件管理器

✏️ 编辑：IsEmpty.php

路径：/home/boguraj1/.trash/vendor/phpunit/phpunit/src/Framework/Constraint/Cardinality/IsEmpty.php

大小：1.71 KB · 修改：2026-07-23 16:13:46 · 权限：0644 · 可写

<?php declare(strict_types=1);
/*
 * This file is part of PHPUnit.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace PHPUnit\Framework\Constraint;

use function count;
use function gettype;
use function sprintf;
use function strpos;
use Countable;
use EmptyIterator;

/**
 * @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
 */
final class IsEmpty extends Constraint
{
    /**
     * Returns a string representation of the constraint.
     */
    public function toString(): string
    {
        return 'is empty';
    }

/**
     * Evaluates the constraint for parameter $other. Returns true if the
     * constraint is met, false otherwise.
     *
     * @param mixed $other value or object to evaluate
     */
    protected function matches($other): bool
    {
        if ($other instanceof EmptyIterator) {
            return true;
        }

if ($other instanceof Countable) {
            return count($other) === 0;
        }

return empty($other);
    }

/**
     * Returns the description of the failure.
     *
     * The beginning of failure messages is "Failed asserting that" in most
     * cases. This method should return the second part of that sentence.
     *
     * @param mixed $other evaluated value or object
     */
    protected function failureDescription($other): string
    {
        $type = gettype($other);

return sprintf(
            '%s %s %s',
            strpos($type, 'a') === 0 || strpos($type, 'o') === 0 ? 'an' : 'a',
            $type,
            $this->toString(),
        );
    }
}