--- /dev/null
+<?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;
+
+@trigger_error('The '.__NAMESPACE__.'\ApcUniversalClassLoader class is deprecated since version 2.7 and will be removed in 3.0. Use the Symfony\Component\ClassLoader\ApcClassLoader class instead.', E_USER_DEPRECATED);
+
+/**
+ * ApcUniversalClassLoader implements a "universal" autoloader cached in APC for PHP 5.3.
+ *
+ * It is able to load classes that use either:
+ *
+ * * The technical interoperability standards for PHP 5.3 namespaces and
+ * class names (https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-0.md);
+ *
+ * * The PEAR naming convention for classes (http://pear.php.net/).
+ *
+ * Classes from a sub-namespace or a sub-hierarchy of PEAR classes can be
+ * looked for in a list of locations to ease the vendoring of a sub-set of
+ * classes for large projects.
+ *
+ * Example usage:
+ *
+ * require 'vendor/symfony/src/Symfony/Component/ClassLoader/UniversalClassLoader.php';
+ * require 'vendor/symfony/src/Symfony/Component/ClassLoader/ApcUniversalClassLoader.php';
+ *
+ * use Symfony\Component\ClassLoader\ApcUniversalClassLoader;
+ *
+ * $loader = new ApcUniversalClassLoader('apc.prefix.');
+ *
+ * // register classes with namespaces
+ * $loader->registerNamespaces(array(
+ * 'Symfony\Component' => __DIR__.'/component',
+ * 'Symfony' => __DIR__.'/framework',
+ * 'Sensio' => array(__DIR__.'/src', __DIR__.'/vendor'),
+ * ));
+ *
+ * // register a library using the PEAR naming convention
+ * $loader->registerPrefixes(array(
+ * 'Swift_' => __DIR__.'/Swift',
+ * ));
+ *
+ * // activate the autoloader
+ * $loader->register();
+ *
+ * In this example, if you try to use a class in the Symfony\Component
+ * namespace or one of its children (Symfony\Component\Console for instance),
+ * the autoloader will first look for the class under the component/
+ * directory, and it will then fallback to the framework/ directory if not
+ * found before giving up.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Kris Wallsmith <kris@symfony.com>
+ *
+ * @deprecated since version 2.4, to be removed in 3.0.
+ * Use the {@link ClassLoader} class instead.
+ */
+class ApcUniversalClassLoader extends UniversalClassLoader
+{
+ private $prefix;
+
+ /**
+ * Constructor.
+ *
+ * @param string $prefix A prefix to create a namespace in APC
+ *
+ * @throws \RuntimeException
+ */
+ public function __construct($prefix)
+ {
+ if (!function_exists('apcu_fetch')) {
+ throw new \RuntimeException('Unable to use ApcUniversalClassLoader as APC is not enabled.');
+ }
+
+ $this->prefix = $prefix;
+ }
+
+ /**
+ * Finds a file by class name while caching lookups to APC.
+ *
+ * @param string $class A class name to resolve to file
+ *
+ * @return string|null The path, if found
+ */
+ public function findFile($class)
+ {
+ $file = apcu_fetch($this->prefix.$class, $success);
+
+ if (!$success) {
+ apcu_store($this->prefix.$class, $file = parent::findFile($class) ?: null);
+ }
+
+ return $file;
+ }
+}