simplified form factory creation

src/Silex/Provider/FormServiceProvider.php

@@ -13,15 +13,13 @@ namespace Silex\Provider;
 
 use Silex\Application;
 use Silex\ServiceProviderInterface;
-use Symfony\Component\Form\Extension\Core\CoreExtension;
 use Symfony\Component\Form\Extension\Csrf\CsrfExtension;
 use Symfony\Component\Form\Extension\Csrf\CsrfProvider\DefaultCsrfProvider;
 use Symfony\Component\Form\Extension\Csrf\CsrfProvider\SessionCsrfProvider;
 use Symfony\Component\Form\Extension\HttpFoundation\HttpFoundationExtension;
 use Symfony\Component\Form\Extension\Validator\ValidatorExtension as FormValidatorExtension;
 use Symfony\Component\Form\FormFactory;
-use Symfony\Component\Form\FormRegistry;
-use Symfony\Component\Form\ResolvedFormTypeFactory;
+use Symfony\Component\Form\Forms;
 
 /**
  * Symfony Form component Provider.
@@ -51,7 +49,6 @@ class FormServiceProvider implements ServiceProviderInterface
 
         $app['form.extensions'] = $app->share(function ($app) {
             $extensions = array(
-                new CoreExtension(),
                 new CsrfExtension($app['form.csrf_provider']),
                 new HttpFoundationExtension(),
             );
@@ -68,16 +65,11 @@ class FormServiceProvider implements ServiceProviderInterface
             return $extensions;
         });
 
-        $app['form.resolved_type_factory'] = $app->share(function ($app) {
-            return new ResolvedFormTypeFactory();
-        });
-
-        $app['form.registry'] = $app->share(function ($app) {
-            return new FormRegistry($app['form.extensions'], $app['form.resolved_type_factory']);
-        });
-
         $app['form.factory'] = $app->share(function ($app) {
-            return new FormFactory($app['form.registry'], $app['form.resolved_type_factory']);
+            return Forms::createFormFactoryBuilder()
+                ->addExtensions($app['form.extensions'])
+                ->getFormFactory()
+            ;
         });
 
         $app['form.csrf_provider'] = $app->share(function ($app) {