/**
* @Route("/", name="homepage")
* @Template("index.twig")
*/
public function index(
MailService $mailService)
{
$this->mailService = $mailService;
}
public function index(Request $request)
{
$builder = $this->formFactory->createBuilder(ContactType::class);

public function __construct(MailService $mailService)
{
    $this->mailService = $mailService;
}

/**
* @Route("/", name="homepage")
* @Template("index.twig")
*/
public function index(Request $request)
{
$builder = $this->formFactory->createBuilder(ContactType::class);

use Sensio\Bundle\FrameworkExtraBundle\Configuration\Template;
use Symfony\Component\Routing\Annotation\Route;

use Eccube\Entity\Customer;
use Eccube\Event\EccubeEvents;
use Eccube\Event\EventArgs;
use Eccube\Form\Type\Front\ContactType;
use Eccube\Service\MailService;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Template;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Annotation\Route;