of special environment variables that start with SYMFONY__ (such as "%s") is deprecated as of 3.3 and will be removed in 4.0. Use the %%env()%% syntax instead to get the value of environment variables in configuration files.', $key), \E_USER_DEPRECATED);
                $parameters[strtolower(str_replace('__', '.', substr($key, 9)))] = $value;
            }
        }

        return $parameters;
    }

    /**
     * Builds the service container.
     *
     * @return ContainerBuilder The compiled service container
     *
     * @throws \RuntimeException
     */
    protected function buildContainer()
    {
        foreach (['cache' => $this->warmupDir ?: $this->getCacheDir(), 'logs' => $this->getLogDir()] as $name => $dir) {
            if (!is_dir($dir)) {
                if (false === @mkdir($dir, 0777, true) && !is_dir($dir)) {
                    throw new \RuntimeException(sprintf('Unable to create the "%s" directory (%s).', $name, $dir));
                }
            } elseif (!is_writable($dir)) {
                throw new \RuntimeException(sprintf('Unable to write in the "%s" directory (%s).', $name, $dir));
            }
        }

        $container = $this->getContainerBuilder();
        $container->addObjectResource($this);
        $this->prepareContainer($container);

        if (null !== $cont = $this->registerContainerConfiguration($this->getContainerLoader($container))) {
            $container->merge($cont);
        }

        $container->addCompilerPass(new AddAnnotatedClassesToCachePass($this));
        $container->addResource(new EnvParametersResource('SYMFONY__'));

        return $container;
    }

    /**
     * Prepares the ContainerBuilder before it is compiled.
     */
    protected function prepareContainer(ContainerBuilder $container)
    {
        $extensions = [];
        foreach ($this->bundles as $bundle) {
            if ($extension = $bundle->getContainerExtension()) {
                $container->registerExtension($extension);
            }

            if ($this->debug) {
                $container->addObjectResource($bundle);
            }
        }

        foreach ($this->bundles as $bundle) {
            $bundle->build($container);
        }

        $this->build($container);

        foreach ($container->getExtensions() as $extension) {
            $extensions[] = $extension->getAlias();
        }

        // ensure these extensions are implicitly loaded
        $container->getCompilerPassConfig()->setMergePass(new MergeExtensionConfigurationPass($extensions));
    }

    /**
     * Gets a new ContainerBuilder instance used to build the service container.
     *
     * @return ContainerBuilder
     */
    protected function getContainerBuilder()
    {
        $container = new ContainerBuilder();
        $container->getParameterBag()->add($this->getKernelParameters());

        if ($this instanceof CompilerPassInterface) {
            $container->addCompilerPass($this, PassConfig::TYPE_BEFORE_OPTIMIZATION, -10000);
        }
        if (class_exists('ProxyManager\Configuration') && class_exists('Symfony\Bridge\ProxyManager\LazyProxy\Instantiator\RuntimeInstantiator')) {
            $container->setProxyInstantiator(new RuntimeInstantiator());
        }

        return $container;
    }

    /**
     * Dumps the service container to PHP code in the cache.
     *
     * @param ConfigCache      $cache     The config cache
     * @param ContainerBuilder $container The service container
     * @param string           $class     The name of the class to generate
     * @param string           $baseClass The name of the container's base class
     */
    protected function dumpContainer(ConfigCache $cache, ContainerBuilder $container, $class, $baseClass)
    {
        // cache the container
        $dumper = new PhpDumper($container);

        if (class_exists('ProxyManager\Configuration') && class_exists('Symfony\Bridge\ProxyManager\LazyProxy\PhpDumper\ProxyDumper')) {
            $dumper->setProxyDumper(new ProxyDumper());
        }

        $content = $dumper->dump([
            'class' => $class,
            'base_class' => $baseClass,
            'file' => $cache->getPath(),
            'as_files' => true,
            'debug' => $this->debug,
            'inline_class_loader_parameter' => \PHP_VERSION_ID >= 70000 && !$this->loadClassCache && !class_exists(ClassCollectionLoader::class, false) ? 'container.dumper.inline_class_loader' : null,
            'build_time' => $container->hasParameter('kernel.container_build_time') ? $container->getParameter('kernel.container_build_time') : time(),
        ]);

        $rootCode = array_pop($content);
        $dir = \dirname($cache->getPath()).'/';
        $fs = new Filesystem();

        foreach ($content as $file => $code) {
            $fs->dumpFile($dir.$file, $code);
            @chmod($dir.$file, 0666 & ~umask());
        }
        $legacyFile = \dirname($dir.key($content)).'.legacy';
        if (file_exists($legacyFile)) {
            @unlink($legacyFile);
        }

        $cache->write($rootCode, $container->getResources());
    }

    /**
     * Returns a loader for the container.
     *
     * @return DelegatingLoader The loader
     */
    protected function getContainerLoader(ContainerInterface $container)
    {
        $locator = new FileLocator($this);
        $resolver = new LoaderResolver([
            new XmlFileLoader($container, $locator),
            new YamlFileLoader($container, $locator),
            new IniFileLoader($container, $locator),
            new PhpFileLoader($container, $locator),
            new GlobFileLoader($container, $locator),
            new DirectoryLoader($container, $locator),
            new ClosureLoader($container),
        ]);

        return new DelegatingLoader($resolver);
    }

    /**
     * Removes comments from a PHP source string.
     *
     * We don't use the PHP php_strip_whitespace() function
     * as we want the content to be readable and well-formatted.
     *
     * @param string $source A PHP string
     *
     * @return string The PHP string with the comments removed
     */
    public static function stripComments($source)
    {
        if (!\function_exists('token_get_all')) {
            return $source;
        }

        $rawChunk = '';
        $output = '';
        $tokens = token_get_all($source);
        $ignoreSpace = false;
        for ($i = 0; isset($tokens[$i]); ++$i) {
            $token = $tokens[$i];
            if (!isset($token[1]) || 'b"' === $token) {
                $rawChunk .= $token;
            } elseif (\T_START_HEREDOC === $token[0]) {
                $output .= $rawChunk.$token[1];
                do {
                    $token = $tokens[++$i];
                    $output .= isset($token[1]) && 'b"' !== $token ? $token[1] : $token;
                } while (\T_END_HEREDOC !== $token[0]);
                $rawChunk = '';
            } elseif (\T_WHITESPACE === $token[0]) {
                if ($ignoreSpace) {
                    $ignoreSpace = false;

                    continue;
                }

                // replace multiple new lines with a single newline
                $rawChunk .= preg_replace(['/\n{2,}/S'], "\n", $token[1]);
            } elseif (\in_array($token[0], [\T_COMMENT, \T_DOC_COMMENT])) {
                $ignoreSpace = true;
            } else {
                $rawChunk .= $token[1];

                // The PHP-open tag already has a new-line
                if (\T_OPEN_TAG === $token[0]) {
                    $ignoreSpace = true;
                }
            }
        }

        $output .= $rawChunk;

        if (\PHP_VERSION_ID >= 70000) {
            // PHP 7 memory manager will not release after token_get_all(), see https://bugs.php.net/70098
            unset($tokens, $rawChunk);
            gc_mem_caches();
        }

        return $output;
    }

    public function serialize()
    {
        return serialize([$this->environment, $this->debug]);
    }

    public function unserialize($data)
    {
        if (\PHP_VERSION_ID >= 70000) {
            list($environment, $debug) = unserialize($data, ['allowed_classes' => false]);
        } else {
            list($environment, $debug) = unserialize($data);
        }

        $this->__construct($environment, $debug);
    }
}