DirectoryCollectionIterator.php

<?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\TextUI\Configuration;

use function count;
use function iterator_count;
use Countable;
use Iterator;

/**
 * @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
 *
 * @template-implements Iterator<int, Directory>
 */
final class DirectoryCollectionIterator implements Countable, Iterator {
    
    /**
     * @psalm-var list<Directory>
     */
    private readonly array $directories;
    private int $position = 0;
    public function __construct(DirectoryCollection $directories) {
        $this->directories = $directories->asArray();
    }
    public function count() : int {
        return iterator_count($this);
    }
    public function rewind() : void {
        $this->position = 0;
    }
    public function valid() : bool {
        return $this->position < count($this->directories);
    }
    public function key() : int {
        return $this->position;
    }
    public function current() : Directory {
        return $this->directories[$this->position];
    }
    public function next() : void {
        $this->position++;
    }

}