FileLoader.php

1. 8.x drupal/core/vendor/phpunit/phpunit/PHPUnit/Util/Fileloader.php
2. 8.x drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Loader/FileLoader.php
3. 8.x drupal/core/vendor/symfony/validator/Symfony/Component/Validator/Mapping/Loader/FileLoader.php

<?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\Validator\Mapping\Loader;

use Symfony\Component\Validator\Exception\MappingException;
abstract class FileLoader extends AbstractLoader {
  protected $file;

  /**
   * Constructor.
   *
   * @param string $file The mapping file to load
   *
   * @throws MappingException if the mapping file does not exist
   * @throws MappingException if the mapping file is not readable
   */
  public function __construct($file) {
    if (!is_file($file)) {
      throw new MappingException(sprintf('The mapping file %s does not exist', $file));
    }
    if (!is_readable($file)) {
      throw new MappingException(sprintf('The mapping file %s is not readable', $file));
    }
    $this->file = $file;
  }

}