Bolt\Provider\DumperServiceProvider::register PHP Method

    public function register(Application $app)
    {
        $app['dump'] = $app->protect(function ($var) use($app) {
            if (!$app['debug']) {
                return;
            }
            $app['dumper']->dump($app['dumper.cloner']->cloneVar($var));
        });
        VarDumper::setHandler(function ($var) use($app) {
            /*
             * Referencing $app['dump'] in anonymous function
             * so the closure can be replaced in $app without
             * breaking the reference here.
             */
            return $app['dump']($var);
        });
        $app['dumper'] = $app->share(function ($app) {
            return PHP_SAPI === 'cli' ? $app['dumper.cli'] : $app['dumper.html'];
        });
        $app['dumper.cli'] = $app->share(function () {
            return new CliDumper();
        });
        $app['dumper.html'] = $app->share(function () {
            return new HtmlDumper();
        });
        $app['dumper.cloner'] = $app->share(function () {
            $cloner = new VarCloner();
            $cloner->addCasters(Caster\FilesystemCasters::getCasters());
            return $cloner;
        });
    }