Flint\Provider\RoutingServiceProvider::register PHP Method

    public function register(Application $app)
    {
        $app['routing.resource'] = null;
        $app['routing.options'] = array();
        $app['routing.loader.xml'] = $app->share(function (Application $app) {
            return new XmlFileLoader($app['config.locator']);
        });
        $app['routing.loader.php'] = $app->share(function (Application $app) {
            return new PhpFileLoader($app['config.locator']);
        });
        $app['routing.loader.yml'] = $app->share(function (Application $app) {
            return new YamlFileLoader($app['config.locator']);
        });
        $app['routing.loader.null'] = $app->share(function (Application $app) {
            return new NullLoader();
        });
        $app['routing.loader.resolver'] = $app->share(function (Application $app) {
            $loaders = array($app['routing.loader.xml'], $app['routing.loader.php'], $app['routing.loader.null']);
            if (class_exists('Symfony\\Component\\Yaml\\Yaml')) {
                $loaders[] = $app['routing.loader.yml'];
            }
            return new LoaderResolver($loaders);
        });
        $app['routing.loader'] = $app->share(function (Application $app) {
            return new DelegatingLoader($app['routing.loader.resolver']);
        });
        $app['router'] = $app->share(function (Application $app) {
            $defaults = array('debug' => $app['debug'], 'matcher_base_class' => 'Silex\\RedirectableUrlMatcher', 'matcher_class' => 'Silex\\RedirectableUrlMatcher');
            $options = array_replace($defaults, $app['routing.options']);
            return new Router($app['routing.loader'], $app['routing.resource'], $options, $app['request_context'], $app['logger']);
        });
        $app['url_matcher'] = $app->share($app->extend('url_matcher', function ($matcher, $app) {
            $matcher = new ChainMatcher(array($app['router'], $matcher));
            $matcher->setContext($app['request_context']);
            return $matcher;
        }));
        $app['url_generator'] = $app->share($app->extend('url_generator', function ($generator, $app) {
            $generator = new ChainUrlGenerator(array($app['router'], $generator));
            $generator->setContext($app['request_context']);
            return $generator;
        }));
    }