Viewing file:  DebugClassLoader.php (3.28 KB) -rw-r--r--
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<?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\ClassLoader;
/**
* 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
*
* @deprecated Deprecated since version 2.4, to be removed in 3.0. Use the DebugClassLoader provided by the Debug component instead.
*/
class DebugClassLoader
{
private $classFinder;
/**
* Constructor.
*
* @param object $classFinder
*
* @api
*/
public function __construct($classFinder)
{
$this->classFinder = $classFinder;
}
/**
* Gets the wrapped class loader.
*
* @return object a class loader instance
*/
public function getClassLoader()
{
return $this->classFinder;
}
/**
* Replaces all autoloaders implementing a findFile method by a DebugClassLoader wrapper.
*/
public static function enable()
{
if (!is_array($functions = spl_autoload_functions())) {
return;
}
foreach ($functions as $function) {
spl_autoload_unregister($function);
}
foreach ($functions as $function) {
if (is_array($function) && !$function[0] instanceof self && method_exists($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'));
}
/**
* Finds a file by class name
*
* @param string $class A class name to resolve to file
*
* @return string|null
*/
public function findFile($class)
{
return $this->classFinder->findFile($class);
}
/**
* Loads the given class or interface.
*
* @param string $class The name of the class
*
* @return Boolean|null True, if loaded
*
* @throws \RuntimeException
*/
public function loadClass($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))) {
if (false !== strpos($class, '/')) {
throw new \RuntimeException(sprintf('Trying to autoload a class with an invalid name "%s". Be careful that the namespace separator is "\" in PHP, not "/".', $class));
}
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;
}
}
}
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