<?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;

/**

 * Checks that the class is actually declared in the included file.

 *

 * @author Fabien Potencier <fabien@symfony.com>

 */

class DebugUniversalClassLoader extends UniversalClassLoader

{

    /**

     * Replaces all regular UniversalClassLoader instances by a DebugUniversalClassLoader ones.

     */

    static public 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 UniversalClassLoader) {

                $loader = new static();

                $loader->registerNamespaceFallbacks($function[0]->getNamespaceFallbacks());

                $loader->registerPrefixFallbacks($function[0]->getPrefixFallbacks());

                $loader->registerNamespaces($function[0]->getNamespaces());

                $loader->registerPrefixes($function[0]->getPrefixes());

                $function[0] = $loader;

            }

            spl_autoload_register($function);

        }

    }

    /**

     * {@inheritDoc}

     */

    public function loadClass($class)

    {

        if ($file = $this->findFile($class)) {

            require $file;

            if (!class_exists($class, false) && !interface_exists($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));

            }

        }

    }

}