<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Finder\Iterator;

use Symfony\Component\Finder\Exception\AccessDeniedException;
use Symfony\Component\Finder\SplFileInfo;

/**
 * Extends the \RecursiveDirectoryIterator to support relative paths
 *
 * @author Victor Berchet <victor@suumit.com>
 */
class RecursiveDirectoryIterator extends \RecursiveDirectoryIterator
{
    public function __construct($path, $flags)
    {
        if ($flags & (self::CURRENT_AS_PATHNAME | self::CURRENT_AS_SELF)) {
            throw new \RuntimeException('This iterator only support returning current as fileinfo.');
        }

        parent::__construct($path, $flags);
    }

    /**
     * Return an instance of SplFileInfo with support for relative paths
     *
     * @return SplFileInfo File information
     */
    public function current()
    {
        return new SplFileInfo(parent::current()->getPathname(), $this->getSubPath(), $this->getSubPathname());
    }

    /**
     * @return mixed object
     *
     * @throws AccessDeniedException
     */
    public function getChildren()
    {
        try {
            return parent::getChildren();
        } catch (\UnexpectedValueException $e) {
            throw new AccessDeniedException($e->getMessage(), $e->getCode(), $e);
        }
    }
}