class DebugClassLoader

Autoloader checking if the class is really defined in the file found.

The DebugClassLoader will wrap all registered autoloaders providing a findFile method and will throw an exception if a file is found but does not declare the class.

@author Fabien Potencier <fabien@symfony.com> @author Christophe Coevoet <stof@notk.org>

@api

Hierarchy

Expanded class hierarchy of DebugClassLoader

1 file declares its use of DebugClassLoader
Kernel.php in drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/Kernel.php

File

drupal/core/vendor/symfony/class-loader/Symfony/Component/ClassLoader/DebugClassLoader.php, line 26

Namespace

Symfony\Component\ClassLoader
View source
class DebugClassLoader {
  private $classFinder;

  /**
   * Constructor.
   *
   * @param object $classFinder
   *
   * @api
   */
  public function __construct($classFinder) {
    $this->classFinder = $classFinder;
  }

  /**
   * Replaces all autoloaders implementing a findFile method by a DebugClassLoader wrapper.
   */
  public static function enable() {
    if (!is_array($functions = spl_autoload_functions())) {
      return;
    }
    foreach ($functions as $function) {
      spl_autoload_unregister($function);
    }
    foreach ($functions as $function) {
      if (is_array($function) && method_exists($function[0], 'findFile')) {
        $function = array(
          new static($function[0]),
          'loadClass',
        );
      }
      spl_autoload_register($function);
    }
  }

  /**
   * Unregisters this instance as an autoloader.
   */
  public function unregister() {
    spl_autoload_unregister(array(
      $this,
      'loadClass',
    ));
  }

  /**
   * Loads the given class or interface.
   *
   * @param string $class The name of the class
   *
   * @return Boolean|null True, if loaded
   */
  public function loadClass($class) {
    if ($file = $this->classFinder
      ->findFile($class)) {
      require $file;
      if (!class_exists($class, false) && !interface_exists($class, false) && (!function_exists('trait_exists') || !trait_exists($class, false))) {
        throw new \RuntimeException(sprintf('The autoloader expected class "%s" to be defined in file "%s". The file was found but the class was not in it, the class name or namespace probably has a typo.', $class, $file));
      }
      return true;
    }
  }

}

Members

Namesort descending Modifiers Type Description Overrides
DebugClassLoader::$classFinder private property
DebugClassLoader::enable public static function Replaces all autoloaders implementing a findFile method by a DebugClassLoader wrapper.
DebugClassLoader::loadClass public function Loads the given class or interface.
DebugClassLoader::unregister public function Unregisters this instance as an autoloader.
DebugClassLoader::__construct public function Constructor.