Merge branch '3.4'

* 3.4:
  [Bridge\Doctrine][FrameworkBundle] Deprecate some remaining uses of ContainerAwareTrait
  [FrameworkBundle] Fix bad interface hint in AbstractController
  [VarDumper] deprecate MongoCaster
  [HttpFoundation] deprecate using  with the legacy mongo extension; use it with the mongodb/mongodb package and ext-mongodb instead
  Fix BC layer
  Reset profiler.
  [DI] Improve some deprecation messages
  [DI] remove inheritdoc from dumped container
  [Config] Fix dumped files invalidation by OPCache
  [Security] Add Guard authenticator <supports> method
  [Cache] Fix race condition in TagAwareAdapter
  [DI] Allow setting any public non-initialized services
  [Yaml] parse references on merge keys
  treat trailing backslashes in multi-line strings
  [FrameworkBundle] Expose dotenv in bin/console about
  fix refreshing line numbers for the inline parser
  fix version in changelog
  [FrameworkBundle] Make Controller helpers final
  [DoctrineBridge] Deprecate DbalSessionHandler

UPGRADE-3.4.md

@@ -63,6 +63,12 @@ Debug
 
  * Support for stacked errors in the `ErrorHandler` is deprecated and will be removed in Symfony 4.0.
 
+EventDispatcher
+---------------
+
+ * Implementing `TraceableEventDispatcherInterface` without the `reset()` method
+   is deprecated and will be unsupported in 4.0.
+
 Filesystem
 ----------
 
@@ -234,6 +240,9 @@ HttpFoundation
  * `NativeSessionStorage::setSaveHandler()` now takes an instance of `\SessionHandlerInterface` as argument.
    Not passing it is deprecated and will throw a `TypeError` in 4.0.
 
+ * Using `Symfony\Component\HttpFoundation\Session\Storage\Handler\MongoDbSessionHandler` with the legacy mongo extension
+   has been deprecated and will be removed in 4.0. Use it with the mongodb/mongodb package and ext-mongodb instead.
+
 HttpKernel
 ----------
 
@@ -270,6 +279,10 @@ HttpKernel
 
  * The `Symfony\Component\HttpKernel\Config\EnvParametersResource` class has been deprecated and will be removed in 4.0.
 
+ * Implementing `DataCollectorInterface` without a `reset()` method has been deprecated and will be unsupported in 4.0.
+
+ * Implementing `DebugLoggerInterface` without a `clear()` method has been deprecated and will be unsupported in 4.0.
+
  * The `ChainCacheClearer::add()` method has been deprecated and will be removed in 4.0,
    inject the list of clearers as a constructor argument instead.
 
@@ -296,6 +309,9 @@ Security
    `DigestAuthenticationListener` and `DigestAuthenticationEntryPoint` will be
    removed in 4.0. Use another authentication system like `http_basic` instead.
    
+ * The `GuardAuthenticatorInterface` has been deprecated and will be removed in 4.0.
+   Use `AuthenticatorInterface` instead.
+
 SecurityBundle
 --------------
 

UPGRADE-4.0.md

@@ -192,6 +192,8 @@ EventDispatcher
  * The `ContainerAwareEventDispatcher` class has been removed.
    Use `EventDispatcher` with closure factories instead.
 
+ * The `reset()` method has been added to `TraceableEventDispatcherInterface`.
+
 ExpressionLanguage
 ------------------
 
@@ -540,6 +542,9 @@ HttpFoundation
 
  * `NativeSessionStorage::setSaveHandler()` now requires an instance of `\SessionHandlerInterface` as argument.
 
+ * The `Symfony\Component\HttpFoundation\Session\Storage\Handler\MongoDbSessionHandler` does not work with the legacy
+   mongo extension anymore. It requires mongodb/mongodb package and ext-mongodb.
+
 HttpKernel
 ----------
 
@@ -611,6 +616,10 @@ HttpKernel
 
  * The `Symfony\Component\HttpKernel\Config\EnvParametersResource` class has been removed.
 
+ * The `reset()` method has been added to `Symfony\Component\HttpKernel\DataCollector\DataCollectorInterface`.
+
+ * The `clear()` method has been added to `Symfony\Component\HttpKernel\Log\DebugLoggerInterface`.
+
  * The `ChainCacheClearer::add()` method has been removed,
    inject the list of clearers as a constructor argument instead.
 
@@ -673,6 +682,9 @@ Security
    `DigestAuthenticationListener` and `DigestAuthenticationEntryPoint` classes
    have been removed. Use another authentication system like `http_basic` instead.
 
+ * The `GuardAuthenticatorInterface` interface has been removed.
+   Use `AuthenticatorInterface` instead.
+
 SecurityBundle
 --------------
 

composer.json

@@ -20,7 +20,7 @@
         "ext-xml": "*",
         "doctrine/common": "~2.4",
         "fig/link-util": "^1.0",
-        "twig/twig": "~1.34|~2.4",
+        "twig/twig": "^1.35|^2.4.4",
         "psr/cache": "~1.0",
         "psr/container": "^1.0",
         "psr/link": "^1.0",

src/Symfony/Bridge/Doctrine/DataCollector/DoctrineDataCollector.php

@@ -28,6 +28,10 @@ class DoctrineDataCollector extends DataCollector
     private $registry;
     private $connections;
     private $managers;
+
+    /**
+     * @var DebugStack[]
+     */
     private $loggers = array();
 
     public function __construct(ManagerRegistry $registry)
@@ -65,6 +69,16 @@ class DoctrineDataCollector extends DataCollector
         );
     }
 
+    public function reset()
+    {
+        $this->data = array();
+
+        foreach ($this->loggers as $logger) {
+            $logger->queries = array();
+            $logger->currentQuery = 0;
+        }
+    }
+
     public function getManagers()
     {
         return $this->data['managers'];

src/Symfony/Bridge/Doctrine/HttpFoundation/DbalSessionHandler.php

@@ -11,6 +11,8 @@
 
 namespace Symfony\Bridge\Doctrine\HttpFoundation;
 
+@trigger_error(sprintf('The class %s is deprecated since version 3.4 and will be removed in 4.0. Use Symfony\Component\HttpFoundation\Session\Storage\Handler\PdoSessionHandler instead.', DbalSessionHandler::class), E_USER_DEPRECATED);
+
 use Doctrine\DBAL\Connection;
 use Doctrine\DBAL\Driver\DriverException;
 use Doctrine\DBAL\Driver\ServerInfoAwareConnection;
@@ -25,6 +27,8 @@ use Doctrine\DBAL\Platforms\SQLServer2008Platform;
  * @author Fabien Potencier <fabien@symfony.com>
  * @author Johannes M. Schmitt <schmittjoh@gmail.com>
  * @author Tobias Schultze <http://tobion.de>
+ *
+ * @deprecated since version 3.4, to be removed in 4.0. Use Symfony\Component\HttpFoundation\Session\Storage\Handler\PdoSessionHandler instead.
  */
 class DbalSessionHandler implements \SessionHandlerInterface
 {

src/Symfony/Bridge/Doctrine/HttpFoundation/DbalSessionHandlerSchema.php

@@ -11,12 +11,16 @@
 
 namespace Symfony\Bridge\Doctrine\HttpFoundation;
 
+@trigger_error(sprintf('The class %s is deprecated since version 3.4 and will be removed in 4.0. Use Symfony\Component\HttpFoundation\Session\Storage\Handler\PdoSessionHandler::createTable instead.', DbalSessionHandlerSchema::class), E_USER_DEPRECATED);
+
 use Doctrine\DBAL\Schema\Schema;
 
 /**
  * DBAL Session Storage Schema.
  *
  * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ *
+ * @deprecated since version 3.4, to be removed in 4.0. Use Symfony\Component\HttpFoundation\Session\Storage\Handler\PdoSessionHandler::createTable instead.
  */
 final class DbalSessionHandlerSchema extends Schema
 {

src/Symfony/Bridge/Doctrine/ManagerRegistry.php

@@ -12,9 +12,10 @@
 namespace Symfony\Bridge\Doctrine;
 
 use ProxyManager\Proxy\LazyLoadingInterface;
+use Psr\Container\ContainerInterface;
 use Symfony\Component\DependencyInjection\Container;
 use Symfony\Component\DependencyInjection\ContainerAwareInterface;
-use Symfony\Component\DependencyInjection\ContainerAwareTrait;
+use Symfony\Component\DependencyInjection\ContainerInterface as SymfonyContainerInterface;
 use Doctrine\Common\Persistence\AbstractManagerRegistry;
 
 /**
@@ -24,7 +25,21 @@ use Doctrine\Common\Persistence\AbstractManagerRegistry;
  */
 abstract class ManagerRegistry extends AbstractManagerRegistry implements ContainerAwareInterface
 {
-    use ContainerAwareTrait;
+    /**
+     * @var ContainerInterface
+     */
+    protected $container;
+
+    /**
+     * @deprecated since version 3.4, to be removed in 4.0 alongside with the ContainerAwareInterface type.
+     * @final since version 3.4
+     */
+    public function setContainer(SymfonyContainerInterface $container = null)
+    {
+        @trigger_error(sprintf('The "%s()" method is deprecated since version 3.4 and will be removed in 4.0. Inject a PSR-11 container using the constructor instead.', __METHOD__), E_USER_DEPRECATED);
+
+        $this->container = $container;
+    }
 
     /**
      * {@inheritdoc}

src/Symfony/Bridge/Doctrine/Tests/DataCollector/DoctrineDataCollectorTest.php

@@ -101,6 +101,20 @@ class DoctrineDataCollectorTest extends TestCase
         $this->assertTrue($collectedQueries['default'][1]['explainable']);
     }
 
+    public function testReset()
+    {
+        $queries = array(
+            array('sql' => 'SELECT * FROM table1', 'params' => array(), 'types' => array(), 'executionMS' => 1),
+        );
+        $c = $this->createCollector($queries);
+        $c->collect(new Request(), new Response());
+
+        $c->reset();
+        $c->collect(new Request(), new Response());
+
+        $this->assertEquals(array('default' => array()), $c->getQueries());
+    }
+
     /**
      * @dataProvider paramProvider
      */

src/Symfony/Bridge/Doctrine/Tests/HttpFoundation/DbalSessionHandlerTest.php

@@ -18,6 +18,8 @@ use Symfony\Bridge\Doctrine\HttpFoundation\DbalSessionHandler;
  * Test class for DbalSessionHandler.
  *
  * @author Drak <drak@zikula.org>
+ *
+ * @group legacy
  */
 class DbalSessionHandlerTest extends TestCase
 {

src/Symfony/Bridge/Doctrine/Tests/ManagerRegistryTest.php

@@ -31,7 +31,7 @@ class ManagerRegistryTest extends TestCase
         $container = new \LazyServiceProjectServiceContainer();
 
         $registry = new TestManagerRegistry('name', array(), array('defaultManager' => 'foo'), 'defaultConnection', 'defaultManager', 'proxyInterfaceName');
-        $registry->setContainer($container);
+        $registry->setTestContainer($container);
 
         $foo = $container->get('foo');
         $foo->bar = 123;
@@ -46,6 +46,11 @@ class ManagerRegistryTest extends TestCase
 
 class TestManagerRegistry extends ManagerRegistry
 {
+    public function setTestContainer($container)
+    {
+        $this->container = $container;
+    }
+
     public function getAliasNamespace($alias)
     {
         return 'Foo';

src/Symfony/Bridge/Monolog/Logger.php

@@ -45,6 +45,16 @@ class Logger extends BaseLogger implements DebugLoggerInterface
         return 0;
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        if (($logger = $this->getDebugLogger()) && method_exists($logger, 'clear')) {
+            $logger->clear();
+        }
+    }
+
     /**
      * Returns a DebugLoggerInterface instance if one is registered with this logger.
      *

src/Symfony/Bridge/Monolog/Processor/DebugProcessor.php

@@ -55,4 +55,13 @@ class DebugProcessor implements DebugLoggerInterface
     {
         return $this->errorCount;
     }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        $this->records = array();
+        $this->errorCount = 0;
+    }
 }

src/Symfony/Bridge/Monolog/Tests/LoggerTest.php

@@ -78,4 +78,17 @@ class LoggerTest extends TestCase
         $this->assertEquals('test', $record['message']);
         $this->assertEquals(Logger::INFO, $record['priority']);
     }
+
+    public function testClear()
+    {
+        $handler = new TestHandler();
+        $logger = new Logger('test', array($handler));
+        $logger->pushProcessor(new DebugProcessor());
+
+        $logger->addInfo('test');
+        $logger->clear();
+
+        $this->assertEmpty($logger->getLogs());
+        $this->assertSame(0, $logger->countErrors());
+    }
 }

src/Symfony/Bridge/Twig/DataCollector/TwigDataCollector.php

@@ -44,6 +44,16 @@ class TwigDataCollector extends DataCollector implements LateDataCollectorInterf
     {
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        $this->profile->reset();
+        $this->computed = null;
+        $this->data = array();
+    }
+
     /**
      * {@inheritdoc}
      */

src/Symfony/Bridge/Twig/composer.json

@@ -17,7 +17,7 @@
     ],
     "require": {
         "php": "^7.1.3",
-        "twig/twig": "~1.34|~2.4"
+        "twig/twig": "^1.35|^2.4.4"
     },
     "require-dev": {
         "fig/link-util": "^1.0",

src/Symfony/Bundle/FrameworkBundle/CHANGELOG.md

@@ -81,6 +81,7 @@ CHANGELOG
     and `YamlLintCommand` classes have been marked as final
  * Added `asset.request_context.base_path` and `asset.request_context.secure` parameters
    to provide a default request context in case the stack is empty (similar to `router.request_context.*` parameters)
+ * Display environment variables managed by `Dotenv` in `AboutCommand`
 
 3.3.0
 -----

src/Symfony/Bundle/FrameworkBundle/Command/AboutCommand.php

@@ -36,7 +36,19 @@ class AboutCommand extends Command
      */
     protected function configure()
     {
-        $this->setDescription('Displays information about the current project');
+        $this
+            ->setDescription('Displays information about the current project')
+            ->setHelp(<<<'EOT'
+The <info>%command.name%</info> command displays information about the current Symfony project.
+
+The <info>PHP</info> section displays important configuration that could affect your application. The values might
+be different between web and CLI.
+
+The <info>Environment</info> section displays the current environment variables managed by Symfony Dotenv. It will not
+be shown if no variables were found. The values might be different between web and CLI.
+EOT
+            )
+        ;
     }
 
     /**
@@ -49,7 +61,7 @@ class AboutCommand extends Command
         /** @var $kernel KernelInterface */
         $kernel = $this->getApplication()->getKernel();
 
-        $io->table(array(), array(
+        $rows = array(
             array('<info>Symfony</>'),
             new TableSeparator(),
             array('Version', Kernel::VERSION),
@@ -76,7 +88,19 @@ class AboutCommand extends Command
             array('OPcache', extension_loaded('Zend OPcache') && ini_get('opcache.enable') ? 'true' : 'false'),
             array('APCu', extension_loaded('apcu') && ini_get('apc.enabled') ? 'true' : 'false'),
             array('Xdebug', extension_loaded('xdebug') ? 'true' : 'false'),
-        ));
+        );
+
+        if ($dotenv = self::getDotEnvVars()) {
+            $rows = array_merge($rows, array(
+                new TableSeparator(),
+                array('<info>Environment (.env)</>'),
+                new TableSeparator(),
+            ), array_map(function ($value, $name) {
+                return array($name, $value);
+            }, $dotenv, array_keys($dotenv)));
+        }
+
+        $io->table(array(), $rows);
     }
 
     private static function formatPath($path, $baseDir = null)
@@ -104,4 +128,16 @@ class AboutCommand extends Command
 
         return false !== $date && new \DateTime() > $date->modify('last day of this month 23:59:59');
     }
+
+    private static function getDotEnvVars()
+    {
+        $vars = array();
+        foreach (explode(',', getenv('SYMFONY_DOTENV_VARS')) as $name) {
+            if ('' !== $name && false !== $value = getenv($name)) {
+                $vars[$name] = $value;
+            }
+        }
+
+        return $vars;
+    }
 }

src/Symfony/Bundle/FrameworkBundle/Controller/Controller.php

@@ -26,30 +26,6 @@ abstract class Controller implements ContainerAwareInterface
     use ContainerAwareTrait;
     use ControllerTrait;
 
-    /**
-     * Returns true if the service id is defined.
-     *
-     * @param string $id The service id
-     *
-     * @return bool true if the service id is defined, false otherwise
-     */
-    protected function has($id)
-    {
-        return $this->container->has($id);
-    }
-
-    /**
-     * Gets a container service by its id.
-     *
-     * @param string $id The service id
-     *
-     * @return object The service
-     */
-    protected function get($id)
-    {
-        return $this->container->get($id);
-    }
-
     /**
      * Gets a container configuration parameter by its name.
      *

src/Symfony/Bundle/FrameworkBundle/Controller/ControllerResolver.php

@@ -48,13 +48,7 @@ class ControllerResolver extends ContainerControllerResolver
         $resolvedController = parent::createController($controller);
 
         if (1 === substr_count($controller, ':') && is_array($resolvedController)) {
-            if ($resolvedController[0] instanceof ContainerAwareInterface) {
+            $resolvedController[0] = $this->configureController($resolvedController[0]);
-                $resolvedController[0]->setContainer($this->container);
-            }
-
-            if ($resolvedController[0] instanceof AbstractController && null !== $previousContainer = $resolvedController[0]->setContainer($this->container)) {
-                $resolvedController[0]->setContainer($previousContainer);
-            }
         }
 
         return $resolvedController;
@@ -65,9 +59,19 @@ class ControllerResolver extends ContainerControllerResolver
      */
     protected function instantiateController($class)
     {
-        $controller = parent::instantiateController($class);
+        return $this->configureController(parent::instantiateController($class));
+    }
 
+    private function configureController($controller)
+    {
         if ($controller instanceof ContainerAwareInterface) {
+            // @deprecated switch, to be removed in 4.0 where these classes
+            // won't implement ContainerAwareInterface anymore
+            switch (\get_class($controller)) {
+                case RedirectController::class:
+                case TemplateController::class:
+                    return $controller;
+            }
             $controller->setContainer($this->container);
         }
         if ($controller instanceof AbstractController && null !== $previousContainer = $controller->setContainer($this->container)) {

src/Symfony/Bundle/FrameworkBundle/Controller/ControllerTrait.php

@@ -39,6 +39,34 @@ use Doctrine\Bundle\DoctrineBundle\Registry;
  */
 trait ControllerTrait
 {
+    /**
+     * Returns true if the service id is defined.
+     *
+     * @param string $id The service id
+     *
+     * @return bool true if the service id is defined, false otherwise
+     *
+     * @final since version 3.4
+     */
+    protected function has($id)
+    {
+        return $this->container->has($id);
+    }
+
+    /**
+     * Gets a container service by its id.
+     *
+     * @param string $id The service id
+     *
+     * @return object The service
+     *
+     * @final since version 3.4
+     */
+    protected function get($id)
+    {
+        return $this->container->get($id);
+    }
+
     /**
      * Generates a URL from the given parameters.
      *
@@ -49,6 +77,8 @@ trait ControllerTrait
      * @return string The generated URL
      *
      * @see UrlGeneratorInterface
+     *
+     * @final since version 3.4
      */
     protected function generateUrl($route, $parameters = array(), $referenceType = UrlGeneratorInterface::ABSOLUTE_PATH)
     {
@@ -63,6 +93,8 @@ trait ControllerTrait
      * @param array  $query      An array of query parameters
      *
      * @return Response A Response instance
+     *
+     * @final since version 3.4
      */
     protected function forward($controller, array $path = array(), array $query = array())
     {
@@ -81,6 +113,8 @@ trait ControllerTrait
      * @param int    $status The status code to use for the Response
      *
      * @return RedirectResponse
+     *
+     * @final since version 3.4
      */
     protected function redirect($url, $status = 302)
     {
@@ -95,6 +129,8 @@ trait ControllerTrait
      * @param int    $status     The status code to use for the Response
      *
      * @return RedirectResponse
+     *
+     * @final since version 3.4
      */
     protected function redirectToRoute($route, array $parameters = array(), $status = 302)
     {
@@ -110,6 +146,8 @@ trait ControllerTrait
      * @param array $context Context to pass to serializer when using serializer component
      *
      * @return JsonResponse
+     *
+     * @final since version 3.4
      */
     protected function json($data, $status = 200, $headers = array(), $context = array())
     {
@@ -132,6 +170,8 @@ trait ControllerTrait
      * @param string              $disposition Disposition of response ("attachment" is default, other type is "inline")
      *
      * @return BinaryFileResponse
+     *
+     * @final since version 3.4
      */
     protected function file($file, $fileName = null, $disposition = ResponseHeaderBag::DISPOSITION_ATTACHMENT)
     {
@@ -148,6 +188,8 @@ trait ControllerTrait
      * @param string $message The message
      *
      * @throws \LogicException
+     *
+     * @final since version 3.4
      */
     protected function addFlash($type, $message)
     {
@@ -167,6 +209,8 @@ trait ControllerTrait
      * @return bool
      *
      * @throws \LogicException
+     *
+     * @final since version 3.4
      */
     protected function isGranted($attributes, $subject = null)
     {
@@ -186,6 +230,8 @@ trait ControllerTrait
      * @param string $message    The message passed to the exception
      *
      * @throws AccessDeniedException
+     *
+     * @final since version 3.4
      */
     protected function denyAccessUnlessGranted($attributes, $subject = null, $message = 'Access Denied.')
     {
@@ -205,6 +251,8 @@ trait ControllerTrait
      * @param array  $parameters An array of parameters to pass to the view
      *
      * @return string The rendered view
+     *
+     * @final since version 3.4
      */
     protected function renderView($view, array $parameters = array())
     {
@@ -227,14 +275,16 @@ trait ControllerTrait
      * @param Response $response   A response instance
      *
      * @return Response A Response instance
+     *
+     * @final since version 3.4
      */
     protected function render($view, array $parameters = array(), Response $response = null)
     {
         if ($this->container->has('templating')) {
-            return $this->container->get('templating')->renderResponse($view, $parameters, $response);
+            $content = $this->container->get('templating')->render($view, $parameters);
-        }
+        } elseif ($this->container->has('twig')) {
-
+            $content = $this->container->get('twig')->render($view, $parameters);
-        if (!$this->container->has('twig')) {
+        } else {
             throw new \LogicException('You can not use the "render" method if the Templating Component or the Twig Bundle are not available.');
         }
 
@@ -242,7 +292,7 @@ trait ControllerTrait
             $response = new Response();
         }
 
-        $response->setContent($this->container->get('twig')->render($view, $parameters));
+        $response->setContent($content);
 
         return $response;
     }
@@ -255,6 +305,8 @@ trait ControllerTrait
      * @param StreamedResponse $response   A response instance
      *
      * @return StreamedResponse A StreamedResponse instance
+     *
+     * @final since version 3.4
      */
     protected function stream($view, array $parameters = array(), StreamedResponse $response = null)
     {
@@ -294,6 +346,8 @@ trait ControllerTrait
      * @param \Exception|null $previous The previous exception
      *
      * @return NotFoundHttpException
+     *
+     * @final since version 3.4
      */
     protected function createNotFoundException($message = 'Not Found', \Exception $previous = null)
     {
@@ -311,6 +365,8 @@ trait ControllerTrait
      * @param \Exception|null $previous The previous exception
      *
      * @return AccessDeniedException
+     *
+     * @final since version 3.4
      */
     protected function createAccessDeniedException($message = 'Access Denied.', \Exception $previous = null)
     {
@@ -325,6 +381,8 @@ trait ControllerTrait
      * @param array  $options Options for the form
      *
      * @return Form
+     *
+     * @final since version 3.4
      */
     protected function createForm($type, $data = null, array $options = array())
     {
@@ -338,6 +396,8 @@ trait ControllerTrait
      * @param array $options Options for the form
      *
      * @return FormBuilder
+     *
+     * @final since version 3.4
      */
     protected function createFormBuilder($data = null, array $options = array())
     {
@@ -350,6 +410,8 @@ trait ControllerTrait
      * @return Registry
      *
      * @throws \LogicException If DoctrineBundle is not available
+     *
+     * @final since version 3.4
      */
     protected function getDoctrine()
     {
@@ -368,6 +430,8 @@ trait ControllerTrait
      * @throws \LogicException If SecurityBundle is not available
      *
      * @see TokenInterface::getUser()
+     *
+     * @final since version 3.4
      */
     protected function getUser()
     {
@@ -394,6 +458,8 @@ trait ControllerTrait
      * @param string $token The actual token sent with the request that should be validated
      *
      * @return bool
+     *
+     * @final since version 3.4
      */
     protected function isCsrfTokenValid($id, $token)
     {

src/Symfony/Bundle/FrameworkBundle/Controller/RedirectController.php

@@ -12,7 +12,7 @@
 namespace Symfony\Bundle\FrameworkBundle\Controller;
 
 use Symfony\Component\DependencyInjection\ContainerAwareInterface;
-use Symfony\Component\DependencyInjection\ContainerAwareTrait;
+use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpFoundation\RedirectResponse;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
@@ -23,10 +23,37 @@ use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
  * Redirects a request to another URL.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final since version 3.4
  */
 class RedirectController implements ContainerAwareInterface
 {
-    use ContainerAwareTrait;
+    /**
+     * @deprecated since version 3.4, to be removed in 4.0
+     */
+    protected $container;
+
+    private $router;
+    private $httpPort;
+    private $httpsPort;
+
+    public function __construct(UrlGeneratorInterface $router = null, $httpPort = null, $httpsPort = null)
+    {
+        $this->router = $router;
+        $this->httpPort = $httpPort;
+        $this->httpsPort = $httpsPort;
+    }
+
+    /**
+     * @deprecated since version 3.4, to be removed in 4.0 alongside with the ContainerAwareInterface type.
+     */
+    public function setContainer(ContainerInterface $container = null)
+    {
+        @trigger_error(sprintf('The "%s()" method is deprecated since version 3.4 and will be removed in 4.0. Inject an UrlGeneratorInterface using the constructor instead.', __METHOD__), E_USER_DEPRECATED);
+
+        $this->container = $container;
+        $this->router = $container->get('router');
+    }
 
     /**
      * Redirects to another route with the given name.
@@ -61,7 +88,7 @@ class RedirectController implements ContainerAwareInterface
             }
         }
 
-        return new RedirectResponse($this->container->get('router')->generate($route, $attributes, UrlGeneratorInterface::ABSOLUTE_URL), $permanent ? 301 : 302);
+        return new RedirectResponse($this->router->generate($route, $attributes, UrlGeneratorInterface::ABSOLUTE_URL), $permanent ? 301 : 302);
     }
 
     /**
@@ -115,8 +142,11 @@ class RedirectController implements ContainerAwareInterface
             if (null === $httpPort) {
                 if ('http' === $request->getScheme()) {
                     $httpPort = $request->getPort();
-                } elseif ($this->container->hasParameter('request_listener.http_port')) {
+                } elseif ($this->container && $this->container->hasParameter('request_listener.http_port')) {
+                    @trigger_error(sprintf('Passing the http port as a container parameter is deprecated since Symfony 3.4 and won\'t be possible in 4.0. Pass it to the constructor of the "%s" class instead.', __CLASS__), E_USER_DEPRECATED);
                     $httpPort = $this->container->getParameter('request_listener.http_port');
+                } else {
+                    $httpPort = $this->httpPort;
                 }
             }
 
@@ -127,8 +157,11 @@ class RedirectController implements ContainerAwareInterface
             if (null === $httpsPort) {
                 if ('https' === $request->getScheme()) {
                     $httpsPort = $request->getPort();
-                } elseif ($this->container->hasParameter('request_listener.https_port')) {
+                } elseif ($this->container && $this->container->hasParameter('request_listener.https_port')) {
+                    @trigger_error(sprintf('Passing the https port as a container parameter is deprecated since Symfony 3.4 and won\'t be possible in 4.0. Pass it to the constructor of the "%s" class instead.', __CLASS__), E_USER_DEPRECATED);
                     $httpsPort = $this->container->getParameter('request_listener.https_port');
+                } else {
+                    $httpsPort = $this->httpsPort;
                 }
             }
 

src/Symfony/Bundle/FrameworkBundle/Controller/TemplateController.php

@@ -12,17 +12,48 @@
 namespace Symfony\Bundle\FrameworkBundle\Controller;
 
 use Symfony\Component\DependencyInjection\ContainerAwareInterface;
-use Symfony\Component\DependencyInjection\ContainerAwareTrait;
+use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Templating\EngineInterface;
+use Twig\Environment;
 
 /**
  * TemplateController.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final since version 3.4
  */
 class TemplateController implements ContainerAwareInterface
 {
-    use ContainerAwareTrait;
+    /**
+     * @deprecated since version 3.4, to be removed in 4.0
+     */
+    protected $container;
+
+    private $twig;
+    private $templating;
+
+    public function __construct(Environment $twig = null, EngineInterface $templating = null)
+    {
+        $this->twig = $twig;
+        $this->templating = $templating;
+    }
+
+    /**
+     * @deprecated since version 3.4, to be removed in 4.0 alongside with the ContainerAwareInterface type.
+     */
+    public function setContainer(ContainerInterface $container = null)
+    {
+        @trigger_error(sprintf('The "%s()" method is deprecated since version 3.4 and will be removed in 4.0. Inject a Twig Environment or an EngineInterface using the constructor instead.', __METHOD__), E_USER_DEPRECATED);
+
+        if ($container->has('templating')) {
+            $this->templating = $container->get('templating');
+        } elseif ($container->has('twig')) {
+            $this->twig = $container->get('twig');
+        }
+        $this->container = $container;
+    }
 
     /**
      * Renders a template.
@@ -36,10 +67,10 @@ class TemplateController implements ContainerAwareInterface
      */
     public function templateAction($template, $maxAge = null, $sharedAge = null, $private = null)
     {
-        if ($this->container->has('templating')) {
+        if ($this->templating) {
-            $response = $this->container->get('templating')->renderResponse($template);
+            $response = new Response($this->templating->render($template));
-        } elseif ($this->container->has('twig')) {
+        } elseif ($this->twig) {
-            $response = new Response($this->container->get('twig')->render($template));
+            $response = new Response($this->twig->render($template));
         } else {
             throw new \LogicException('You can not use the TemplateController if the Templating Component or the Twig Bundle are not available.');
         }

src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php

@@ -466,9 +466,9 @@ class FrameworkExtension extends Extension
 
         $container->setParameter('profiler.storage.dsn', $config['dsn']);
 
-        if (!$config['collect']) {
+        $container->getDefinition('profiler')
-            $container->getDefinition('profiler')->addMethodCall('disable', array());
+            ->addArgument($config['collect'])
-        }
+            ->addTag('kernel.reset', array('method' => 'reset'));
     }
 
     /**

src/Symfony/Bundle/FrameworkBundle/Resources/config/routing.xml

@@ -104,5 +104,16 @@
             <argument>%kernel.project_dir%</argument>
             <argument>%kernel.debug%</argument>
         </service>
+
+        <service id="Symfony\Bundle\FrameworkBundle\Controller\RedirectController" public="true">
+            <argument type="service" id="router" />
+            <argument>%request_listener.http_port%</argument>
+            <argument>%request_listener.https_port%</argument>
+        </service>
+
+        <service id="Symfony\Bundle\FrameworkBundle\Controller\TemplateController" public="true">
+            <argument type="service" id="twig" on-invalid="ignore" />
+            <argument type="service" id="templating" on-invalid="ignore" />
+        </service>
     </services>
 </container>

src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerTraitTest.php

@@ -451,7 +451,7 @@ abstract class ControllerTraitTest extends TestCase
     public function testRenderTemplating()
     {
         $templating = $this->getMockBuilder('Symfony\Bundle\FrameworkBundle\Templating\EngineInterface')->getMock();
-        $templating->expects($this->once())->method('renderResponse')->willReturn(new Response('bar'));
+        $templating->expects($this->once())->method('render')->willReturn('bar');
 
         $container = new Container();
         $container->set('templating', $templating);

src/Symfony/Bundle/FrameworkBundle/Tests/Controller/RedirectControllerTest.php

@@ -15,6 +15,7 @@ use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpFoundation\ParameterBag;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\Exception\HttpException;
+use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
 use Symfony\Bundle\FrameworkBundle\Controller\RedirectController;
 use Symfony\Bundle\FrameworkBundle\Tests\TestCase;
 
@@ -66,23 +67,14 @@ class RedirectControllerTest extends TestCase
 
         $request->attributes = new ParameterBag($attributes);
 
-        $router = $this->getMockBuilder('Symfony\Component\Routing\RouterInterface')->getMock();
+        $router = $this->getMockBuilder(UrlGeneratorInterface::class)->getMock();
         $router
             ->expects($this->once())
             ->method('generate')
             ->with($this->equalTo($route), $this->equalTo($expectedAttributes))
             ->will($this->returnValue($url));
 
-        $container = $this->getMockBuilder('Symfony\Component\DependencyInjection\ContainerInterface')->getMock();
+        $controller = new RedirectController($router);
-
-        $container
-            ->expects($this->once())
-            ->method('get')
-            ->with($this->equalTo('router'))
-            ->will($this->returnValue($router));
-
-        $controller = new RedirectController();
-        $controller->setContainer($container);
 
         $returnResponse = $controller->redirectAction($request, $route, $permanent, $ignoreAttributes);
 
@@ -130,7 +122,7 @@ class RedirectControllerTest extends TestCase
         $this->assertEquals(302, $returnResponse->getStatusCode());
     }
 
-    public function testUrlRedirectDefaultPortParameters()
+    public function testUrlRedirectDefaultPorts()
     {
         $host = 'www.example.com';
         $baseUrl = '/base';
@@ -151,6 +143,30 @@ class RedirectControllerTest extends TestCase
         $this->assertRedirectUrl($returnValue, $expectedUrl);
     }
 
+    /**
+     * @group legacy
+     */
+    public function testUrlRedirectDefaultPortParameters()
+    {
+        $host = 'www.example.com';
+        $baseUrl = '/base';
+        $path = '/redirect-path';
+        $httpPort = 1080;
+        $httpsPort = 1443;
+
+        $expectedUrl = "https://$host:$httpsPort$baseUrl$path";
+        $request = $this->createRequestObject('http', $host, $httpPort, $baseUrl);
+        $controller = $this->createLegacyRedirectController(null, $httpsPort);
+        $returnValue = $controller->urlRedirectAction($request, $path, false, 'https');
+        $this->assertRedirectUrl($returnValue, $expectedUrl);
+
+        $expectedUrl = "http://$host:$httpPort$baseUrl$path";
+        $request = $this->createRequestObject('https', $host, $httpPort, $baseUrl);
+        $controller = $this->createLegacyRedirectController($httpPort);
+        $returnValue = $controller->urlRedirectAction($request, $path, false, 'http');
+        $this->assertRedirectUrl($returnValue, $expectedUrl);
+    }
+
     public function urlRedirectProvider()
     {
         return array(
@@ -256,6 +272,14 @@ class RedirectControllerTest extends TestCase
     }
 
     private function createRedirectController($httpPort = null, $httpsPort = null)
+    {
+        return new RedirectController(null, $httpPort, $httpsPort);
+    }
+
+    /**
+     * @deprecated
+     */
+    private function createLegacyRedirectController($httpPort = null, $httpsPort = null)
     {
         $container = $this->getMockBuilder('Symfony\Component\DependencyInjection\ContainerInterface')->getMock();
 

src/Symfony/Bundle/FrameworkBundle/Tests/Controller/TemplateControllerTest.php

@@ -12,8 +12,8 @@
 namespace Symfony\Bundle\FrameworkBundle\Tests\Controller;
 
 use Symfony\Bundle\FrameworkBundle\Controller\TemplateController;
+use Symfony\Bundle\FrameworkBundle\Templating\EngineInterface;
 use Symfony\Bundle\FrameworkBundle\Tests\TestCase;
-use Symfony\Component\HttpFoundation\Response;
 
 /**
  * @author Kévin Dunglas <dunglas@gmail.com>
@@ -25,6 +25,29 @@ class TemplateControllerTest extends TestCase
         $twig = $this->getMockBuilder('Twig\Environment')->disableOriginalConstructor()->getMock();
         $twig->expects($this->once())->method('render')->willReturn('bar');
 
+        $controller = new TemplateController($twig);
+
+        $this->assertEquals('bar', $controller->templateAction('mytemplate')->getContent());
+    }
+
+    public function testTemplating()
+    {
+        $templating = $this->getMockBuilder(EngineInterface::class)->getMock();
+        $templating->expects($this->once())->method('render')->willReturn('bar');
+
+        $controller = new TemplateController(null, $templating);
+
+        $this->assertEquals('bar', $controller->templateAction('mytemplate')->getContent());
+    }
+
+    /**
+     * @group legacy
+     */
+    public function testLegacyTwig()
+    {
+        $twig = $this->getMockBuilder('Twig\Environment')->disableOriginalConstructor()->getMock();
+        $twig->expects($this->once())->method('render')->willReturn('bar');
+
         $container = $this->getMockBuilder('Symfony\Component\DependencyInjection\ContainerInterface')->getMock();
         $container->expects($this->at(0))->method('has')->will($this->returnValue(false));
         $container->expects($this->at(1))->method('has')->will($this->returnValue(true));
@@ -36,10 +59,13 @@ class TemplateControllerTest extends TestCase
         $this->assertEquals('bar', $controller->templateAction('mytemplate')->getContent());
     }
 
-    public function testTemplating()
+    /**
+     * @group legacy
+     */
+    public function testLegacyTemplating()
     {
         $templating = $this->getMockBuilder('Symfony\Bundle\FrameworkBundle\Templating\EngineInterface')->getMock();
-        $templating->expects($this->once())->method('renderResponse')->willReturn(new Response('bar'));
+        $templating->expects($this->once())->method('render')->willReturn('bar');
 
         $container = $this->getMockBuilder('Symfony\Component\DependencyInjection\ContainerInterface')->getMock();
         $container->expects($this->at(0))->method('has')->willReturn(true);
@@ -57,12 +83,7 @@ class TemplateControllerTest extends TestCase
      */
     public function testNoTwigNorTemplating()
     {
-        $container = $this->getMockBuilder('Symfony\Component\DependencyInjection\ContainerInterface')->getMock();
-        $container->expects($this->at(0))->method('has')->willReturn(false);
-        $container->expects($this->at(1))->method('has')->willReturn(false);
-
         $controller = new TemplateController();
-        $controller->setContainer($container);
 
         $controller->templateAction('mytemplate')->getContent();
     }

src/Symfony/Bundle/SecurityBundle/DataCollector/SecurityDataCollector.php

@@ -194,6 +194,14 @@ class SecurityDataCollector extends DataCollector implements LateDataCollectorIn
         }
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        $this->data = array();
+    }
+
     public function lateCollect()
     {
         $this->data = $this->cloneVar($this->data);

src/Symfony/Component/Cache/Adapter/TagAwareAdapter.php

@@ -254,19 +254,12 @@ class TagAwareAdapter implements TagAwareAdapterInterface, PruneableInterface, R
 
             $f = $this->getTagsByKey;
             $tagsByKey = $f($items);
-            $deletedTags = $this->deferred = array();
+            $this->deferred = array();
             $tagVersions = $this->getTagVersions($tagsByKey);
             $f = $this->createCacheItem;
 
             foreach ($tagsByKey as $key => $tags) {
-                if ($tags) {
                 $this->pool->saveDeferred($f(static::TAGS_PREFIX.$key, array_intersect_key($tagVersions, $tags), $items[$key]));
-                } else {
-                    $deletedTags[] = static::TAGS_PREFIX.$key;
-                }
-            }
-            if ($deletedTags) {
-                $this->pool->deleteItems($deletedTags);
             }
         }
 

src/Symfony/Component/Cache/DataCollector/CacheDataCollector.php

@@ -53,6 +53,15 @@ class CacheDataCollector extends DataCollector implements LateDataCollectorInter
         $this->data['total']['statistics'] = $this->calculateTotalStatistics();
     }
 
+    public function reset()
+    {
+        $this->data = array();
+        foreach ($this->instances as $instance) {
+            // Calling getCalls() will clear the calls.
+            $instance->getCalls();
+        }
+    }
+
     public function lateCollect()
     {
         $this->data = $this->cloneVar($this->data);

src/Symfony/Component/Config/ResourceCheckerConfigCache.php

@@ -132,6 +132,10 @@ class ResourceCheckerConfigCache implements ConfigCacheInterface
                 // discard chmod failure (some filesystem may not support it)
             }
         }
+
+        if (\function_exists('opcache_invalidate') && ini_get('opcache.enable')) {
+            @opcache_invalidate($this->file, true);
+        }
     }
 
     /**

src/Symfony/Component/DependencyInjection/Container.php

@@ -152,8 +152,8 @@ class Container implements ResettableContainerInterface
             throw new InvalidArgumentException('You cannot set service "service_container".');
         }
 
-        if (isset($this->fileMap[$id]) || isset($this->methodMap[$id])) {
+        if (isset($this->services[$id]) && (isset($this->fileMap[$id]) || isset($this->methodMap[$id]))) {
-            throw new InvalidArgumentException(sprintf('You cannot set the pre-defined service "%s".', $id));
+            throw new InvalidArgumentException(sprintf('The "%s" service is already initialized, you cannot replace it.', $id));
         }
 
         if (isset($this->aliases[$id])) {

src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php

@@ -889,26 +889,17 @@ EOF;
         $code .= <<<EOF
     }
 
-    /*{$this->docStar}
-     * {@inheritdoc}
-     */
     public function reset()
     {
         \$this->privates = array();
         parent::reset();
     }
 
-    /*{$this->docStar}
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /*{$this->docStar}
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;
@@ -919,9 +910,6 @@ EOF;
         if ($this->asFiles) {
             $code .= <<<EOF
 
-    /*{$this->docStar}
-     * {@inheritdoc}
-     */
     protected function load(\$file, \$lazyLoad = true)
     {
         return require \$file;
@@ -1052,9 +1040,6 @@ EOF;
 
         $code = <<<'EOF'
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameter($name)
     {
         $name = (string) $name;
@@ -1069,9 +1054,6 @@ EOF;
         return $this->parameters[$name];
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function hasParameter($name)
     {
         $name = (string) $name;
@@ -1079,17 +1061,11 @@ EOF;
         return isset($this->parameters[$name]) || isset($this->loadedDynamicParameters[$name]) || array_key_exists($name, $this->parameters);
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function setParameter($name, $value)
     {
         throw new LogicException('Impossible to call set() on a frozen ParameterBag.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameterBag()
     {
         if (null === $this->parameterBag) {
@@ -1104,9 +1080,6 @@ EOF;
     }
 
 EOF;
-        if ('' === $this->docStar) {
-            $code = str_replace('/**', '/*', $code);
-        }
 
         if ($dynamicPhp) {
             $loadedDynamicParameters = $this->exportParameters(array_combine(array_keys($dynamicPhp), array_fill(0, count($dynamicPhp), false)), '', 8);

src/Symfony/Component/DependencyInjection/Tests/ContainerTest.php

@@ -165,6 +165,36 @@ class ContainerTest extends TestCase
         $this->assertSame($foo, $c->get('alias'), '->set() replaces an existing alias');
     }
 
+    /**
+     * @expectedException \Symfony\Component\DependencyInjection\Exception\InvalidArgumentException
+     * @expectedExceptionMessage The "bar" service is already initialized, you cannot replace it.
+     */
+    public function testSetWithNullOnInitializedPredefinedService()
+    {
+        $sc = new Container();
+        $sc->set('foo', new \stdClass());
+        $sc->set('foo', null);
+        $this->assertFalse($sc->has('foo'), '->set() with null service resets the service');
+
+        $sc = new ProjectServiceContainer();
+        $sc->get('bar');
+        $sc->set('bar', null);
+        $this->assertTrue($sc->has('bar'), '->set() with null service resets the pre-defined service');
+    }
+
+    public function testSetWithNullOnUninitializedPredefinedService()
+    {
+        $sc = new Container();
+        $sc->set('foo', new \stdClass());
+        $sc->get('foo', null);
+        $sc->set('foo', null);
+        $this->assertFalse($sc->has('foo'), '->set() with null service resets the service');
+
+        $sc = new ProjectServiceContainer();
+        $sc->set('bar', null);
+        $this->assertTrue($sc->has('bar'), '->set() with null service resets the pre-defined service');
+    }
+
     public function testGet()
     {
         $sc = new ProjectServiceContainer();
@@ -362,16 +392,6 @@ class ContainerTest extends TestCase
         $c->get('internal_dependency');
         $c->get('internal');
     }
-
-    /**
-     * @expectedException \Symfony\Component\DependencyInjection\Exception\InvalidArgumentException
-     * @expectedExceptionMessage You cannot set the pre-defined service "bar".
-     */
-    public function testReplacingAPreDefinedService()
-    {
-        $c = new ProjectServiceContainer();
-        $c->set('bar', new \stdClass());
-    }
 }
 
 class ProjectServiceContainer extends Container

src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php

@@ -286,7 +286,7 @@ class PhpDumperTest extends TestCase
 
     /**
      * @expectedException \Symfony\Component\DependencyInjection\Exception\InvalidArgumentException
-     * @expectedExceptionMessage You cannot set the pre-defined service "bar".
+     * @expectedExceptionMessage The "bar2" service is already initialized, you cannot replace it.
      */
     public function testOverrideServiceWhenUsingADumpedContainer()
     {
@@ -294,7 +294,8 @@ class PhpDumperTest extends TestCase
         require_once self::$fixturesPath.'/includes/foo.php';
 
         $container = new \ProjectServiceContainer();
-        $container->set('bar', $bar = new \stdClass());
+        $container->get('bar2');
+        $container->set('bar2', new \stdClass());
     }
 
     /**

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services1-1.php

@@ -29,26 +29,17 @@ class Container extends AbstractContainer
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services1.php

@@ -27,26 +27,17 @@ class ProjectServiceContainer extends Container
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services10.php

@@ -32,26 +32,17 @@ class ProjectServiceContainer extends Container
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;
@@ -67,9 +58,6 @@ class ProjectServiceContainer extends Container
         return $this->services['test'] = new \stdClass(array('only dot' => '.', 'concatenation as value' => '.\'\'.', 'concatenation from the start value' => '\'\'.', '.' => 'dot as a key', '.\'\'.' => 'concatenation as a key', '\'\'.' => 'concatenation from the start key', 'optimize concatenation' => 'string1-string2', 'optimize concatenation with empty string' => 'string1string2', 'optimize concatenation from the start' => 'start', 'optimize concatenation at the end' => 'end'));
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameter($name)
     {
         $name = (string) $name;
@@ -84,9 +72,6 @@ class ProjectServiceContainer extends Container
         return $this->parameters[$name];
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function hasParameter($name)
     {
         $name = (string) $name;
@@ -94,17 +79,11 @@ class ProjectServiceContainer extends Container
         return isset($this->parameters[$name]) || isset($this->loadedDynamicParameters[$name]) || array_key_exists($name, $this->parameters);
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function setParameter($name, $value)
     {
         throw new LogicException('Impossible to call set() on a frozen ParameterBag.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameterBag()
     {
         if (null === $this->parameterBag) {

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services12.php

@@ -36,26 +36,17 @@ class ProjectServiceContainer extends Container
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;
@@ -71,9 +62,6 @@ class ProjectServiceContainer extends Container
         return $this->services['test'] = new \stdClass(('wiz'.$this->targetDirs[1]), array(('wiz'.$this->targetDirs[1]) => ($this->targetDirs[2].'/')));
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameter($name)
     {
         $name = (string) $name;
@@ -88,9 +76,6 @@ class ProjectServiceContainer extends Container
         return $this->parameters[$name];
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function hasParameter($name)
     {
         $name = (string) $name;
@@ -98,17 +83,11 @@ class ProjectServiceContainer extends Container
         return isset($this->parameters[$name]) || isset($this->loadedDynamicParameters[$name]) || array_key_exists($name, $this->parameters);
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function setParameter($name, $value)
     {
         throw new LogicException('Impossible to call set() on a frozen ParameterBag.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameterBag()
     {
         if (null === $this->parameterBag) {

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services13.php

@@ -30,26 +30,17 @@ class ProjectServiceContainer extends Container
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services19.php

@@ -31,26 +31,17 @@ class ProjectServiceContainer extends Container
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services24.php

@@ -30,26 +30,17 @@ class ProjectServiceContainer extends Container
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services26.php

@@ -36,26 +36,17 @@ class Symfony_DI_PhpDumper_Test_EnvParameters extends Container
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;
@@ -73,9 +64,6 @@ class Symfony_DI_PhpDumper_Test_EnvParameters extends Container
         return $this->services['test'] = new $class($this->getEnv('Bar'), 'foo'.$this->getEnv('string:FOO').'baz', $this->getEnv('int:Baz'));
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameter($name)
     {
         $name = (string) $name;
@@ -90,9 +78,6 @@ class Symfony_DI_PhpDumper_Test_EnvParameters extends Container
         return $this->parameters[$name];
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function hasParameter($name)
     {
         $name = (string) $name;
@@ -100,17 +85,11 @@ class Symfony_DI_PhpDumper_Test_EnvParameters extends Container
         return isset($this->parameters[$name]) || isset($this->loadedDynamicParameters[$name]) || array_key_exists($name, $this->parameters);
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function setParameter($name, $value)
     {
         throw new LogicException('Impossible to call set() on a frozen ParameterBag.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameterBag()
     {
         if (null === $this->parameterBag) {

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services31.php

@@ -30,22 +30,26 @@ class ProjectServiceContainer extends Container
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;
     }
 
+<<<<<<< HEAD
+=======
+    public function isFrozen()
+    {
+        @trigger_error(sprintf('The %s() method is deprecated since version 3.3 and will be removed in 4.0. Use the isCompiled() method instead.', __METHOD__), E_USER_DEPRECATED);
+
+        return true;
+    }
+
+>>>>>>> 3.4
     /**
      * Gets the 'foo' service.
      *

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services33.php

@@ -31,26 +31,17 @@ class ProjectServiceContainer extends Container
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services8.php

@@ -29,34 +29,22 @@ class ProjectServiceContainer extends Container
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameter($name)
     {
         $name = (string) $name;
@@ -71,9 +59,6 @@ class ProjectServiceContainer extends Container
         return $this->parameters[$name];
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function hasParameter($name)
     {
         $name = (string) $name;
@@ -81,17 +66,11 @@ class ProjectServiceContainer extends Container
         return isset($this->parameters[$name]) || isset($this->loadedDynamicParameters[$name]) || array_key_exists($name, $this->parameters);
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function setParameter($name, $value)
     {
         throw new LogicException('Impossible to call set() on a frozen ParameterBag.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameterBag()
     {
         if (null === $this->parameterBag) {

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_as_files.txt

@@ -351,34 +351,22 @@ class Container%s extends Container
         );
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;
     }
 
-    /**
-     * {@inheritdoc}
-     */
     protected function load($file, $lazyLoad = true)
     {
         return require $file;
@@ -394,9 +382,6 @@ class Container%s extends Container
         return new \Bar\FooClass(($this->services['deprecated_service'] ?? $this->load(__DIR__.'/getDeprecatedServiceService.php')));
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameter($name)
     {
         $name = (string) $name;
@@ -411,9 +396,6 @@ class Container%s extends Container
         return $this->parameters[$name];
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function hasParameter($name)
     {
         $name = (string) $name;
@@ -421,17 +403,11 @@ class Container%s extends Container
         return isset($this->parameters[$name]) || isset($this->loadedDynamicParameters[$name]) || array_key_exists($name, $this->parameters);
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function setParameter($name, $value)
     {
         throw new LogicException('Impossible to call set() on a frozen ParameterBag.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameterBag()
     {
         if (null === $this->parameterBag) {

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_compiled.php

@@ -56,26 +56,17 @@ class ProjectServiceContainer extends Container
         );
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;
@@ -395,9 +386,6 @@ class ProjectServiceContainer extends Container
         return $this->privates['factory_simple'] = new \SimpleFactoryClass('foo');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameter($name)
     {
         $name = (string) $name;
@@ -412,9 +400,6 @@ class ProjectServiceContainer extends Container
         return $this->parameters[$name];
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function hasParameter($name)
     {
         $name = (string) $name;
@@ -422,17 +407,11 @@ class ProjectServiceContainer extends Container
         return isset($this->parameters[$name]) || isset($this->loadedDynamicParameters[$name]) || array_key_exists($name, $this->parameters);
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function setParameter($name, $value)
     {
         throw new LogicException('Impossible to call set() on a frozen ParameterBag.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameterBag()
     {
         if (null === $this->parameterBag) {

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_array_params.php

@@ -36,26 +36,17 @@ class ProjectServiceContainer extends Container
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;
@@ -75,9 +66,6 @@ class ProjectServiceContainer extends Container
         return $instance;
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameter($name)
     {
         $name = (string) $name;
@@ -92,9 +80,6 @@ class ProjectServiceContainer extends Container
         return $this->parameters[$name];
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function hasParameter($name)
     {
         $name = (string) $name;
@@ -102,17 +87,11 @@ class ProjectServiceContainer extends Container
         return isset($this->parameters[$name]) || isset($this->loadedDynamicParameters[$name]) || array_key_exists($name, $this->parameters);
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function setParameter($name, $value)
     {
         throw new LogicException('Impossible to call set() on a frozen ParameterBag.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameterBag()
     {
         if (null === $this->parameterBag) {

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_base64_env.php

@@ -29,34 +29,22 @@ class Symfony_DI_PhpDumper_Test_Base64Parameters extends Container
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameter($name)
     {
         $name = (string) $name;
@@ -71,9 +59,6 @@ class Symfony_DI_PhpDumper_Test_Base64Parameters extends Container
         return $this->parameters[$name];
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function hasParameter($name)
     {
         $name = (string) $name;
@@ -81,17 +66,11 @@ class Symfony_DI_PhpDumper_Test_Base64Parameters extends Container
         return isset($this->parameters[$name]) || isset($this->loadedDynamicParameters[$name]) || array_key_exists($name, $this->parameters);
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function setParameter($name, $value)
     {
         throw new LogicException('Impossible to call set() on a frozen ParameterBag.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameterBag()
     {
         if (null === $this->parameterBag) {

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_locator.php

@@ -37,26 +37,17 @@ class ProjectServiceContainer extends Container
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_private_frozen.php

@@ -31,26 +31,17 @@ class ProjectServiceContainer extends Container
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_private_in_expression.php

@@ -30,26 +30,17 @@ class ProjectServiceContainer extends Container
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_rot13_env.php

@@ -33,26 +33,17 @@ class Symfony_DI_PhpDumper_Test_Rot13Parameters extends Container
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;
@@ -80,9 +71,6 @@ class Symfony_DI_PhpDumper_Test_Rot13Parameters extends Container
         }));
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameter($name)
     {
         $name = (string) $name;
@@ -97,9 +85,6 @@ class Symfony_DI_PhpDumper_Test_Rot13Parameters extends Container
         return $this->parameters[$name];
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function hasParameter($name)
     {
         $name = (string) $name;
@@ -107,17 +92,11 @@ class Symfony_DI_PhpDumper_Test_Rot13Parameters extends Container
         return isset($this->parameters[$name]) || isset($this->loadedDynamicParameters[$name]) || array_key_exists($name, $this->parameters);
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function setParameter($name, $value)
     {
         throw new LogicException('Impossible to call set() on a frozen ParameterBag.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getParameterBag()
     {
         if (null === $this->parameterBag) {

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_subscriber.php

@@ -31,26 +31,17 @@ class ProjectServiceContainer extends Container
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;

src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_uninitialized_ref.php

@@ -32,26 +32,17 @@ class Symfony_DI_PhpDumper_Test_Uninitialized_Reference extends Container
         $this->aliases = array();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function reset()
     {
         $this->privates = array();
         parent::reset();
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function compile()
     {
         throw new LogicException('You cannot compile a dumped container that was already compiled.');
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function isCompiled()
     {
         return true;

src/Symfony/Component/EventDispatcher/CHANGELOG.md

@@ -6,6 +6,11 @@ CHANGELOG
 
  * removed the `ContainerAwareEventDispatcher` class
 
+3.4.0
+-----
+
+  * Implementing `TraceableEventDispatcherInterface` without the `reset()` method has been deprecated.
+
 3.3.0
 -----
 

src/Symfony/Component/EventDispatcher/Debug/TraceableEventDispatcher.php

@@ -212,6 +212,11 @@ class TraceableEventDispatcher implements TraceableEventDispatcherInterface
         return $notCalled;
     }
 
+    public function reset()
+    {
+        $this->called = array();
+    }
+
     /**
      * Proxies all method calls to the original event dispatcher.
      *

src/Symfony/Component/EventDispatcher/Debug/TraceableEventDispatcherInterface.php

@@ -15,6 +15,8 @@ use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 
 /**
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @method reset() Resets the trace.
  */
 interface TraceableEventDispatcherInterface extends EventDispatcherInterface
 {

src/Symfony/Component/EventDispatcher/Tests/Debug/TraceableEventDispatcherTest.php

@@ -124,6 +124,21 @@ class TraceableEventDispatcherTest extends TestCase
         $this->assertEquals(array(), $tdispatcher->getNotCalledListeners());
     }
 
+    public function testClearCalledListeners()
+    {
+        $tdispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
+        $tdispatcher->addListener('foo', function () {}, 5);
+
+        $tdispatcher->dispatch('foo');
+        $tdispatcher->reset();
+
+        $listeners = $tdispatcher->getNotCalledListeners();
+        $this->assertArrayHasKey('stub', $listeners['foo.closure']);
+        unset($listeners['foo.closure']['stub']);
+        $this->assertEquals(array(), $tdispatcher->getCalledListeners());
+        $this->assertEquals(array('foo.closure' => array('event' => 'foo', 'pretty' => 'closure', 'priority' => 5)), $listeners);
+    }
+
     public function testGetCalledListenersNested()
     {
         $tdispatcher = null;

src/Symfony/Component/Filesystem/CHANGELOG.md

@@ -6,11 +6,15 @@ CHANGELOG
 
  * removed `LockHandler`
 
+3.4.0
+-----
+
+ * support for passing relative paths to `Filesystem::makePathRelative()` is deprecated and will be removed in 4.0
+
 3.3.0
 -----
 
  * added `appendToFile()` to append contents to existing files
- * support for passing relative paths to `Filesystem::makePathRelative()` is deprecated and will be removed in 4.0
 
 3.2.0
 -----

src/Symfony/Component/Form/Extension/DataCollector/FormDataCollector.php

@@ -74,11 +74,8 @@ class FormDataCollector extends DataCollector implements FormDataCollectorInterf
         }
 
         $this->dataExtractor = $dataExtractor;
-        $this->data = array(
+
-            'forms' => array(),
+        $this->reset();
-            'forms_by_hash' => array(),
-            'nb_errors' => 0,
-        );
     }
 
     /**
@@ -88,6 +85,15 @@ class FormDataCollector extends DataCollector implements FormDataCollectorInterf
     {
     }
 
+    public function reset()
+    {
+        $this->data = array(
+            'forms' => array(),
+            'forms_by_hash' => array(),
+            'nb_errors' => 0,
+        );
+    }
+
     /**
      * {@inheritdoc}
      */

src/Symfony/Component/Form/Tests/Extension/DataCollector/FormDataCollectorTest.php

@@ -695,6 +695,36 @@ class FormDataCollectorTest extends TestCase
         $this->assertFalse(isset($child21Data['has_children_error']), 'The leaf data does not contains "has_children_error" property.');
     }
 
+    public function testReset()
+    {
+        $form = $this->createForm('my_form');
+
+        $this->dataExtractor->expects($this->any())
+            ->method('extractConfiguration')
+            ->will($this->returnValue(array()));
+        $this->dataExtractor->expects($this->any())
+            ->method('extractDefaultData')
+            ->will($this->returnValue(array()));
+        $this->dataExtractor->expects($this->any())
+            ->method('extractSubmittedData')
+            ->with($form)
+            ->will($this->returnValue(array('errors' => array('baz'))));
+
+        $this->dataCollector->buildPreliminaryFormTree($form);
+        $this->dataCollector->collectSubmittedData($form);
+
+        $this->dataCollector->reset();
+
+        $this->assertSame(
+            array(
+                'forms' => array(),
+                'forms_by_hash' => array(),
+                'nb_errors' => 0,
+            ),
+            $this->dataCollector->getData()
+        );
+    }
+
     private function createForm($name)
     {
         $builder = new FormBuilder($name, null, $this->dispatcher, $this->factory);

src/Symfony/Component/HttpFoundation/CHANGELOG.md

@@ -29,6 +29,7 @@ CHANGELOG
  * deprecated the `NativeSessionHandler` class,
  * deprecated the `AbstractProxy`, `NativeProxy` and `SessionHandlerProxy` classes,
  * deprecated setting session save handlers that do not implement `\SessionHandlerInterface` in `NativeSessionStorage::setSaveHandler()`
+ * deprecated using `MongoDbSessionHandler` with the legacy mongo extension; use it with the mongodb/mongodb package and ext-mongodb instead
 
 3.3.0
 -----

src/Symfony/Component/HttpFoundation/Session/Storage/Handler/MongoDbSessionHandler.php

@@ -12,7 +12,12 @@
 namespace Symfony\Component\HttpFoundation\Session\Storage\Handler;
 
 /**
+ * Session handler using the mongodb/mongodb package and MongoDB driver extension.
+ *
  * @author Markus Bachmann <markus.bachmann@bachi.biz>
+ *
+ * @see https://packagist.org/packages/mongodb/mongodb
+ * @see http://php.net/manual/en/set.mongodb.php
  */
 class MongoDbSessionHandler implements \SessionHandlerInterface
 {
@@ -57,7 +62,7 @@ class MongoDbSessionHandler implements \SessionHandlerInterface
      * If you use such an index, you can drop `gc_probability` to 0 since
      * no garbage-collection is required.
      *
-     * @param \Mongo|\MongoClient|\MongoDB\Client $mongo   A MongoDB\Client, MongoClient or Mongo instance
+     * @param \MongoDB\Client $mongo   A MongoDB\Client instance
      * @param array           $options An associative array of field options
      *
      * @throws \InvalidArgumentException When MongoClient or Mongo instance not provided
@@ -65,6 +70,10 @@ class MongoDbSessionHandler implements \SessionHandlerInterface
      */
     public function __construct($mongo, array $options)
     {
+        if ($mongo instanceof \MongoClient || $mongo instanceof \Mongo) {
+            @trigger_error(sprintf('Using %s with the legacy mongo extension is deprecated as of 3.4 and will be removed in 4.0. Use it with the mongodb/mongodb package and ext-mongodb instead.', __CLASS__), E_USER_DEPRECATED);
+        }
+
         if (!($mongo instanceof \MongoDB\Client || $mongo instanceof \MongoClient || $mongo instanceof \Mongo)) {
             throw new \InvalidArgumentException('MongoClient or Mongo instance required');
         }

src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/MongoDbSessionHandlerTest.php

@@ -17,6 +17,7 @@ use Symfony\Component\HttpFoundation\Session\Storage\Handler\MongoDbSessionHandl
 /**
  * @author Markus Bachmann <markus.bachmann@bachi.biz>
  * @group time-sensitive
+ * @requires extension mongodb
  */
 class MongoDbSessionHandlerTest extends TestCase
 {
@@ -31,21 +32,11 @@ class MongoDbSessionHandlerTest extends TestCase
     {
         parent::setUp();
 
-        if (extension_loaded('mongodb')) {
         if (!class_exists('MongoDB\Client')) {
             $this->markTestSkipped('The mongodb/mongodb package is required.');
         }
-        } elseif (!extension_loaded('mongo')) {
-            $this->markTestSkipped('The Mongo or MongoDB extension is required.');
-        }
 
-        if (phpversion('mongodb')) {
+        $this->mongo = $this->getMockBuilder('MongoDB\Client')
-            $mongoClass = 'MongoDB\Client';
-        } else {
-            $mongoClass = version_compare(phpversion('mongo'), '1.3.0', '<') ? 'Mongo' : 'MongoClient';
-        }
-
-        $this->mongo = $this->getMockBuilder($mongoClass)
             ->disableOriginalConstructor()
             ->getMock();
 
@@ -307,23 +298,12 @@ class MongoDbSessionHandlerTest extends TestCase
         $method = new \ReflectionMethod($this->storage, 'getMongo');
         $method->setAccessible(true);
 
-        if (phpversion('mongodb')) {
+        $this->assertInstanceOf('MongoDB\Client', $method->invoke($this->storage));
-            $mongoClass = 'MongoDB\Client';
-        } else {
-            $mongoClass = version_compare(phpversion('mongo'), '1.3.0', '<') ? 'Mongo' : 'MongoClient';
-        }
-
-        $this->assertInstanceOf($mongoClass, $method->invoke($this->storage));
     }
 
     private function createMongoCollectionMock()
     {
-        $collectionClass = 'MongoCollection';
+        $collection = $this->getMockBuilder('MongoDB\Collection')
-        if (phpversion('mongodb')) {
-            $collectionClass = 'MongoDB\Collection';
-        }
-
-        $collection = $this->getMockBuilder($collectionClass)
             ->disableOriginalConstructor()
             ->getMock();
 

src/Symfony/Component/HttpKernel/CHANGELOG.md

@@ -38,7 +38,9 @@ CHANGELOG
  * deprecated the `ChainCacheClearer::add()` method
  * deprecated the `CacheaWarmerAggregate::add()` and `setWarmers()` methods
  * made `CacheWarmerAggregate` and `ChainCacheClearer` classes final
-
+ * added the possibility to reset the profiler to its initial state
+ * deprecated data collectors without a `reset()` method
+ * deprecated implementing `DebugLoggerInterface` without a `clear()` method
 
 3.3.0
 -----

src/Symfony/Component/HttpKernel/DataCollector/AjaxDataCollector.php

@@ -26,6 +26,11 @@ class AjaxDataCollector extends DataCollector
         // all collecting is done client side
     }
 
+    public function reset()
+    {
+        // all collecting is done client side
+    }
+
     public function getName()
     {
         return 'ajax';

src/Symfony/Component/HttpKernel/DataCollector/ConfigDataCollector.php

@@ -95,6 +95,14 @@ class ConfigDataCollector extends DataCollector implements LateDataCollectorInte
         }
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        $this->data = array();
+    }
+
     public function lateCollect()
     {
         $this->data = $this->cloneVar($this->data);

src/Symfony/Component/HttpKernel/DataCollector/DataCollectorInterface.php

@@ -18,6 +18,8 @@ use Symfony\Component\HttpFoundation\Response;
  * DataCollectorInterface.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @method reset() Resets this data collector to its initial state.
  */
 interface DataCollectorInterface
 {

src/Symfony/Component/HttpKernel/DataCollector/EventDataCollector.php

@@ -27,6 +27,9 @@ class EventDataCollector extends DataCollector implements LateDataCollectorInter
 
     public function __construct(EventDispatcherInterface $dispatcher = null)
     {
+        if ($dispatcher instanceof TraceableEventDispatcherInterface && !method_exists($dispatcher, 'reset')) {
+            @trigger_error(sprintf('Implementing "%s" without the "reset()" method is deprecated since version 3.4 and will be unsupported in 4.0 for class "%s".', TraceableEventDispatcherInterface::class, \get_class($dispatcher)), E_USER_DEPRECATED);
+        }
         $this->dispatcher = $dispatcher;
     }
 
@@ -41,6 +44,19 @@ class EventDataCollector extends DataCollector implements LateDataCollectorInter
         );
     }
 
+    public function reset()
+    {
+        $this->data = array();
+
+        if ($this->dispatcher instanceof TraceableEventDispatcherInterface) {
+            if (!method_exists($this->dispatcher, 'reset')) {
+                return; // @deprecated
+            }
+
+            $this->dispatcher->reset();
+        }
+    }
+
     public function lateCollect()
     {
         if ($this->dispatcher instanceof TraceableEventDispatcherInterface) {

src/Symfony/Component/HttpKernel/DataCollector/ExceptionDataCollector.php

@@ -34,6 +34,14 @@ class ExceptionDataCollector extends DataCollector
         }
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        $this->data = array();
+    }
+
     /**
      * Checks if the exception is not null.
      *

src/Symfony/Component/HttpKernel/DataCollector/LoggerDataCollector.php

@@ -29,6 +29,10 @@ class LoggerDataCollector extends DataCollector implements LateDataCollectorInte
     public function __construct($logger = null, $containerPathPrefix = null)
     {
         if (null !== $logger && $logger instanceof DebugLoggerInterface) {
+            if (!method_exists($logger, 'clear')) {
+                @trigger_error(sprintf('Implementing "%s" without the "clear()" method is deprecated since version 3.4 and will be unsupported in 4.0 for class "%s".', DebugLoggerInterface::class, \get_class($logger)), E_USER_DEPRECATED);
+            }
+
             $this->logger = $logger;
         }
 
@@ -43,6 +47,17 @@ class LoggerDataCollector extends DataCollector implements LateDataCollectorInte
         // everything is done as late as possible
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        if ($this->logger && method_exists($this->logger, 'clear')) {
+            $this->logger->clear();
+        }
+        $this->data = array();
+    }
+
     /**
      * {@inheritdoc}
      */

src/Symfony/Component/HttpKernel/DataCollector/MemoryDataCollector.php

@@ -23,10 +23,7 @@ class MemoryDataCollector extends DataCollector implements LateDataCollectorInte
 {
     public function __construct()
     {
-        $this->data = array(
+        $this->reset();
-            'memory' => 0,
-            'memory_limit' => $this->convertToBytes(ini_get('memory_limit')),
-        );
     }
 
     /**
@@ -37,6 +34,17 @@ class MemoryDataCollector extends DataCollector implements LateDataCollectorInte
         $this->updateMemoryUsage();
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        $this->data = array(
+            'memory' => 0,
+            'memory_limit' => $this->convertToBytes(ini_get('memory_limit')),
+        );
+    }
+
     /**
      * {@inheritdoc}
      */

src/Symfony/Component/HttpKernel/DataCollector/RequestDataCollector.php

@@ -156,6 +156,12 @@ class RequestDataCollector extends DataCollector implements EventSubscriberInter
         $this->data = $this->cloneVar($this->data);
     }
 
+    public function reset()
+    {
+        $this->data = array();
+        $this->controllers = new \SplObjectStorage();
+    }
+
     public function getMethod()
     {
         return $this->data['method'];

src/Symfony/Component/HttpKernel/DataCollector/RouterDataCollector.php

@@ -23,17 +23,14 @@ use Symfony\Component\HttpKernel\Event\FilterControllerEvent;
  */
 class RouterDataCollector extends DataCollector
 {
+    /**
+     * @var \SplObjectStorage
+     */
     protected $controllers;
 
     public function __construct()
     {
-        $this->controllers = new \SplObjectStorage();
+        $this->reset();
-
-        $this->data = array(
-            'redirect' => false,
-            'url' => null,
-            'route' => null,
-        );
     }
 
     /**
@@ -53,6 +50,17 @@ class RouterDataCollector extends DataCollector
         unset($this->controllers[$request]);
     }
 
+    public function reset()
+    {
+        $this->controllers = new \SplObjectStorage();
+
+        $this->data = array(
+            'redirect' => false,
+            'url' => null,
+            'route' => null,
+        );
+    }
+
     protected function guessRoute(Request $request, $controller)
     {
         return 'n/a';

src/Symfony/Component/HttpKernel/DataCollector/TimeDataCollector.php

@@ -49,6 +49,14 @@ class TimeDataCollector extends DataCollector implements LateDataCollectorInterf
         );
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        $this->data = array();
+    }
+
     /**
      * {@inheritdoc}
      */

src/Symfony/Component/HttpKernel/Log/DebugLoggerInterface.php

@@ -15,6 +15,8 @@ namespace Symfony\Component\HttpKernel\Log;
  * DebugLoggerInterface.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @method clear() Removes all log records.
  */
 interface DebugLoggerInterface
 {

src/Symfony/Component/HttpKernel/Profiler/Profiler.php

@@ -40,6 +40,11 @@ class Profiler
      */
     private $logger;
 
+    /**
+     * @var bool
+     */
+    private $initiallyEnabled = true;
+
     /**
      * @var bool
      */
@@ -48,11 +53,13 @@ class Profiler
     /**
      * @param ProfilerStorageInterface $storage A ProfilerStorageInterface instance
      * @param LoggerInterface          $logger  A LoggerInterface instance
+     * @param bool                     $enable  The initial enabled state
      */
-    public function __construct(ProfilerStorageInterface $storage, LoggerInterface $logger = null)
+    public function __construct(ProfilerStorageInterface $storage, LoggerInterface $logger = null, $enable = true)
     {
         $this->storage = $storage;
         $this->logger = $logger;
+        $this->initiallyEnabled = $this->enabled = (bool) $enable;
     }
 
     /**
@@ -188,6 +195,18 @@ class Profiler
         return $profile;
     }
 
+    public function reset()
+    {
+        foreach ($this->collectors as $collector) {
+            if (!method_exists($collector, 'reset')) {
+                continue;
+            }
+
+            $collector->reset();
+        }
+        $this->enabled = $this->initiallyEnabled;
+    }
+
     /**
      * Gets the Collectors associated with this profiler.
      *
@@ -218,6 +237,10 @@ class Profiler
      */
     public function add(DataCollectorInterface $collector)
     {
+        if (!method_exists($collector, 'reset')) {
+            @trigger_error(sprintf('Implementing "%s" without the "reset()" method is deprecated since version 3.4 and will be unsupported in 4.0 for class "%s".', DataCollectorInterface::class, \get_class($collector)), E_USER_DEPRECATED);
+        }
+
         $this->collectors[$collector->getName()] = $collector;
     }
 

src/Symfony/Component/HttpKernel/Tests/DataCollector/ExceptionDataCollectorTest.php

@@ -37,4 +37,23 @@ class ExceptionDataCollectorTest extends TestCase
         $this->assertSame('exception', $c->getName());
         $this->assertSame($trace, $c->getTrace());
     }
+
+    public function testCollectWithoutException()
+    {
+        $c = new ExceptionDataCollector();
+        $c->collect(new Request(), new Response());
+
+        $this->assertFalse($c->hasException());
+    }
+
+    public function testReset()
+    {
+        $c = new ExceptionDataCollector();
+
+        $c->collect(new Request(), new Response(), new \Exception());
+        $c->reset();
+        $c->collect(new Request(), new Response());
+
+        $this->assertFalse($c->hasException());
+    }
 }

src/Symfony/Component/HttpKernel/Tests/DataCollector/LoggerDataCollectorTest.php

@@ -19,7 +19,10 @@ class LoggerDataCollectorTest extends TestCase
 {
     public function testCollectWithUnexpectedFormat()
     {
-        $logger = $this->getMockBuilder('Symfony\Component\HttpKernel\Log\DebugLoggerInterface')->getMock();
+        $logger = $this
+            ->getMockBuilder('Symfony\Component\HttpKernel\Log\DebugLoggerInterface')
+            ->setMethods(array('countErrors', 'getLogs', 'clear'))
+            ->getMock();
         $logger->expects($this->once())->method('countErrors')->will($this->returnValue('foo'));
         $logger->expects($this->exactly(2))->method('getLogs')->will($this->returnValue(array()));
 
@@ -43,7 +46,10 @@ class LoggerDataCollectorTest extends TestCase
      */
     public function testCollect($nb, $logs, $expectedLogs, $expectedDeprecationCount, $expectedScreamCount, $expectedPriorities = null)
     {
-        $logger = $this->getMockBuilder('Symfony\Component\HttpKernel\Log\DebugLoggerInterface')->getMock();
+        $logger = $this
+            ->getMockBuilder('Symfony\Component\HttpKernel\Log\DebugLoggerInterface')
+            ->setMethods(array('countErrors', 'getLogs', 'clear'))
+            ->getMock();
         $logger->expects($this->once())->method('countErrors')->will($this->returnValue($nb));
         $logger->expects($this->exactly(2))->method('getLogs')->will($this->returnValue($logs));
 
@@ -70,6 +76,18 @@ class LoggerDataCollectorTest extends TestCase
         }
     }
 
+    public function testReset()
+    {
+        $logger = $this
+            ->getMockBuilder('Symfony\Component\HttpKernel\Log\DebugLoggerInterface')
+            ->setMethods(array('countErrors', 'getLogs', 'clear'))
+            ->getMock();
+        $logger->expects($this->once())->method('clear');
+
+        $c = new LoggerDataCollector($logger);
+        $c->reset();
+    }
+
     public function getCollectTestData()
     {
         yield 'simple log' => array(

src/Symfony/Component/HttpKernel/Tests/Fixtures/DataCollector/CloneVarDataCollector.php

@@ -29,6 +29,11 @@ class CloneVarDataCollector extends DataCollector
         $this->data = $this->cloneVar($this->varToClone);
     }
 
+    public function reset()
+    {
+        $this->data = array();
+    }
+
     public function getData()
     {
         return $this->data;

src/Symfony/Component/HttpKernel/Tests/Fixtures/TestEventDispatcher.php

@@ -25,4 +25,8 @@ class TestEventDispatcher extends EventDispatcher implements TraceableEventDispa
     {
         return array('bar');
     }
+
+    public function reset()
+    {
+    }
 }

src/Symfony/Component/HttpKernel/Tests/Profiler/ProfilerTest.php

@@ -12,6 +12,7 @@
 namespace Symfony\Component\HttpKernel\Tests\Profiler;
 
 use PHPUnit\Framework\TestCase;
+use Symfony\Component\HttpKernel\DataCollector\DataCollectorInterface;
 use Symfony\Component\HttpKernel\DataCollector\RequestDataCollector;
 use Symfony\Component\HttpKernel\Profiler\FileProfilerStorage;
 use Symfony\Component\HttpKernel\Profiler\Profiler;
@@ -40,6 +41,19 @@ class ProfilerTest extends TestCase
         $this->assertSame('bar', $profile->getCollector('request')->getRequestQuery()->all()['foo']->getValue());
     }
 
+    public function testReset()
+    {
+        $collector = $this->getMockBuilder(DataCollectorInterface::class)
+            ->setMethods(['collect', 'getName', 'reset'])
+            ->getMock();
+        $collector->expects($this->any())->method('getName')->willReturn('mock');
+        $collector->expects($this->once())->method('reset');
+
+        $profiler = new Profiler($this->storage);
+        $profiler->add($collector);
+        $profiler->reset();
+    }
+
     public function testFindWorksWithDates()
     {
         $profiler = new Profiler($this->storage);

src/Symfony/Component/Security/CHANGELOG.md

@@ -26,6 +26,7 @@ CHANGELOG
    requests.
  * deprecated HTTP digest authentication
  * Added a new password encoder for the Argon2i hashing algorithm
+ * deprecated `GuardAuthenticatorInterface` in favor of `AuthenticatorInterface`
 
 3.3.0
 -----

src/Symfony/Component/Security/Guard/AbstractGuardAuthenticator.php

@@ -11,6 +11,7 @@
 
 namespace Symfony\Component\Security\Guard;
 
+use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\Security\Core\User\UserInterface;
 use Symfony\Component\Security\Guard\Token\PostAuthenticationGuardToken;
 
@@ -19,8 +20,20 @@ use Symfony\Component\Security\Guard\Token\PostAuthenticationGuardToken;
  *
  * @author Ryan Weaver <ryan@knpuniversity.com>
  */
-abstract class AbstractGuardAuthenticator implements GuardAuthenticatorInterface
+abstract class AbstractGuardAuthenticator implements AuthenticatorInterface
 {
+    /**
+     * {@inheritdoc}
+     *
+     * @deprecated since version 3.4, to be removed in 4.0
+     */
+    public function supports(Request $request)
+    {
+        @trigger_error(sprintf('The "%s()" method is deprecated since version 3.4 and will be removed in 4.0. Implement the "%s::supports()" method in class "%s" instead.', __METHOD__, AuthenticatorInterface::class, get_class($this)), E_USER_DEPRECATED);
+
+        return true;
+    }
+
     /**
      * Shortcut to create a PostAuthenticationGuardToken for you, if you don't really
      * care about which authenticated token you're using.

src/Symfony/Component/Security/Guard/AuthenticatorInterface.php

@@ -0,0 +1,63 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Security\Guard;
+
+use Symfony\Component\HttpFoundation\Request;
+
+/**
+ * The interface for all "guard" authenticators.
+ *
+ * The methods on this interface are called throughout the guard authentication
+ * process to give you the power to control most parts of the process from
+ * one location.
+ *
+ * @author Ryan Weaver <ryan@knpuniversity.com>
+ * @author Amaury Leroux de Lens <amaury@lerouxdelens.com>
+ */
+interface AuthenticatorInterface extends GuardAuthenticatorInterface
+{
+    /**
+     * Does the authenticator support the given Request?
+     *
+     * If this returns false, the authenticator will be skipped.
+     *
+     * @param Request $request
+     *
+     * @return bool
+     */
+    public function supports(Request $request);
+
+    /**
+     * Get the authentication credentials from the request and return them
+     * as any type (e.g. an associate array).
+     *
+     * Whatever value you return here will be passed to getUser() and checkCredentials()
+     *
+     * For example, for a form login, you might:
+     *
+     *      return array(
+     *          'username' => $request->request->get('_username'),
+     *          'password' => $request->request->get('_password'),
+     *      );
+     *
+     * Or for an API token that's on a header, you might use:
+     *
+     *      return array('api_key' => $request->headers->get('X-API-TOKEN'));
+     *
+     * @param Request $request
+     *
+     * @return mixed Any non-null value
+     *
+     * @throws \UnexpectedValueException If null is returned
+     */
+    public function getCredentials(Request $request);
+}

src/Symfony/Component/Security/Guard/Firewall/GuardAuthenticationListener.php

@@ -15,9 +15,10 @@ use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpKernel\Event\GetResponseEvent;
 use Symfony\Component\Security\Guard\GuardAuthenticatorHandler;
+use Symfony\Component\Security\Guard\GuardAuthenticatorInterface;
 use Symfony\Component\Security\Guard\Token\PreAuthenticationGuardToken;
 use Symfony\Component\Security\Core\Authentication\AuthenticationManagerInterface;
-use Symfony\Component\Security\Guard\GuardAuthenticatorInterface;
+use Symfony\Component\Security\Guard\AuthenticatorInterface;
 use Psr\Log\LoggerInterface;
 use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
 use Symfony\Component\Security\Core\Exception\AuthenticationException;
@@ -28,6 +29,7 @@ use Symfony\Component\Security\Http\RememberMe\RememberMeServicesInterface;
  * Authentication listener for the "guard" system.
  *
  * @author Ryan Weaver <ryan@knpuniversity.com>
+ * @author Amaury Leroux de Lens <amaury@lerouxdelens.com>
  */
 class GuardAuthenticationListener implements ListenerInterface
 {
@@ -42,7 +44,7 @@ class GuardAuthenticationListener implements ListenerInterface
      * @param GuardAuthenticatorHandler         $guardHandler          The Guard handler
      * @param AuthenticationManagerInterface    $authenticationManager An AuthenticationManagerInterface instance
      * @param string                            $providerKey           The provider (i.e. firewall) key
-     * @param iterable|GuardAuthenticatorInterface[] $guardAuthenticators   The authenticators, with keys that match what's passed to GuardAuthenticationProvider
+     * @param iterable|AuthenticatorInterface[] $guardAuthenticators   The authenticators, with keys that match what's passed to GuardAuthenticationProvider
      * @param LoggerInterface                   $logger                A LoggerInterface instance
      */
     public function __construct(GuardAuthenticatorHandler $guardHandler, AuthenticationManagerInterface $authenticationManager, $providerKey, $guardAuthenticators, LoggerInterface $logger = null)
@@ -100,14 +102,31 @@ class GuardAuthenticationListener implements ListenerInterface
                 $this->logger->debug('Calling getCredentials() on guard configurator.', array('firewall_key' => $this->providerKey, 'authenticator' => get_class($guardAuthenticator)));
             }
 
+            // abort the execution of the authenticator if it doesn't support the request
+            if ($guardAuthenticator instanceof AuthenticatorInterface) {
+                if (!$guardAuthenticator->supports($request)) {
+                    return;
+                }
+                // as there was a support for given request,
+                // authenticator is expected to give not-null credentials.
+                $credentialsCanBeNull = false;
+            } else {
+                // deprecated since version 3.4, to be removed in 4.0
+                $credentialsCanBeNull = true;
+            }
+
             // allow the authenticator to fetch authentication info from the request
             $credentials = $guardAuthenticator->getCredentials($request);
 
-            // allow null to be returned to skip authentication
             if (null === $credentials) {
+                // deprecated since version 3.4, to be removed in 4.0
+                if ($credentialsCanBeNull) {
                     return;
                 }
 
+                throw new \UnexpectedValueException(sprintf('The return value of "%s::getCredentials()" must not be null. Return false from "%s::supports()" instead.', get_class($guardAuthenticator), get_class($guardAuthenticator)));
+            }
+
             // create a token with the unique key, so that the provider knows which authenticator to use
             $token = new PreAuthenticationGuardToken($credentials, $uniqueGuardKey);
 
@@ -172,7 +191,7 @@ class GuardAuthenticationListener implements ListenerInterface
      * Checks to see if remember me is supported in the authenticator and
      * on the firewall. If it is, the RememberMeServicesInterface is notified.
      *
-     * @param GuardAuthenticatorInterface $guardAuthenticator
+     * @param AuthenticatorInterface $guardAuthenticator
      * @param Request                $request
      * @param TokenInterface         $token
      * @param Response               $response

src/Symfony/Component/Security/Guard/GuardAuthenticatorHandler.php

@@ -29,6 +29,8 @@ use Symfony\Component\Security\Http\SecurityEvents;
  * can be called directly (e.g. for manual authentication) or overridden.
  *
  * @author Ryan Weaver <ryan@knpuniversity.com>
+ *
+ * @final since version 3.4
  */
 class GuardAuthenticatorHandler
 {
@@ -63,7 +65,7 @@ class GuardAuthenticatorHandler
      *
      * @param TokenInterface         $token
      * @param Request                $request
-     * @param GuardAuthenticatorInterface $guardAuthenticator
+     * @param AuthenticatorInterface $guardAuthenticator
      * @param string                 $providerKey        The provider (i.e. firewall) key
      *
      * @return null|Response
@@ -90,7 +92,7 @@ class GuardAuthenticatorHandler
      *
      * @param UserInterface          $user
      * @param Request                $request
-     * @param GuardAuthenticatorInterface $authenticator
+     * @param AuthenticatorInterface $authenticator
      * @param string                 $providerKey   The provider (i.e. firewall) key
      *
      * @return Response|null
@@ -112,7 +114,7 @@ class GuardAuthenticatorHandler
      *
      * @param AuthenticationException $authenticationException
      * @param Request                 $request
-     * @param GuardAuthenticatorInterface $guardAuthenticator
+     * @param AuthenticatorInterface  $guardAuthenticator
      * @param string                  $providerKey             The key of the firewall
      *
      * @return null|Response

src/Symfony/Component/Security/Guard/GuardAuthenticatorInterface.php

@@ -28,6 +28,8 @@ use Symfony\Component\Security\Http\EntryPoint\AuthenticationEntryPointInterface
  * one location.
  *
  * @author Ryan Weaver <ryan@knpuniversity.com>
+ *
+ * @deprecated since version 3.4, to be removed in 4.0. Use AuthenticatorInterface instead
  */
 interface GuardAuthenticatorInterface extends AuthenticationEntryPointInterface
 {

src/Symfony/Component/Security/Guard/Provider/GuardAuthenticationProvider.php

@@ -14,7 +14,7 @@ namespace Symfony\Component\Security\Guard\Provider;
 use Symfony\Component\Security\Core\Authentication\Provider\AuthenticationProviderInterface;
 use Symfony\Component\Security\Core\Exception\BadCredentialsException;
 use Symfony\Component\Security\Core\Exception\UsernameNotFoundException;
-use Symfony\Component\Security\Guard\GuardAuthenticatorInterface;
+use Symfony\Component\Security\Guard\AuthenticatorInterface;
 use Symfony\Component\Security\Guard\Token\GuardTokenInterface;
 use Symfony\Component\Security\Guard\Token\PreAuthenticationGuardToken;
 use Symfony\Component\Security\Core\User\UserCheckerInterface;
@@ -32,7 +32,7 @@ use Symfony\Component\Security\Core\Exception\AuthenticationExpiredException;
 class GuardAuthenticationProvider implements AuthenticationProviderInterface
 {
     /**
-     * @var GuardAuthenticatorInterface[]
+     * @var AuthenticatorInterface[]
      */
     private $guardAuthenticators;
     private $userProvider;
@@ -40,7 +40,7 @@ class GuardAuthenticationProvider implements AuthenticationProviderInterface
     private $userChecker;
 
     /**
-     * @param iterable|GuardAuthenticatorInterface[] $guardAuthenticators The authenticators, with keys that match what's passed to GuardAuthenticationListener
+     * @param iterable|AuthenticatorInterface[] $guardAuthenticators The authenticators, with keys that match what's passed to GuardAuthenticationListener
      * @param UserProviderInterface             $userProvider        The user provider
      * @param string                            $providerKey         The provider (i.e. firewall) key
      * @param UserCheckerInterface              $userChecker
@@ -101,7 +101,7 @@ class GuardAuthenticationProvider implements AuthenticationProviderInterface
         // instances that will be checked if you have multiple firewalls.
     }
 
-    private function authenticateViaGuard(GuardAuthenticatorInterface $guardAuthenticator, PreAuthenticationGuardToken $token)
+    private function authenticateViaGuard($guardAuthenticator, PreAuthenticationGuardToken $token)
     {
         // get the user from the GuardAuthenticator
         $user = $guardAuthenticator->getUser($token->getCredentials(), $this->userProvider);

src/Symfony/Component/Security/Guard/Tests/Firewall/GuardAuthenticationListenerTest.php

@@ -14,12 +14,16 @@ namespace Symfony\Component\Security\Guard\Tests\Firewall;
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
+use Symfony\Component\Security\Guard\AuthenticatorInterface;
 use Symfony\Component\Security\Guard\Firewall\GuardAuthenticationListener;
+use Symfony\Component\Security\Guard\GuardAuthenticatorInterface;
 use Symfony\Component\Security\Guard\Token\PreAuthenticationGuardToken;
 use Symfony\Component\Security\Core\Exception\AuthenticationException;
 
 /**
  * @author Ryan Weaver <weaverryan@gmail.com>
+ * @author Amaury Leroux de Lens <amaury@lerouxdelens.com>
  */
 class GuardAuthenticationListenerTest extends TestCase
 {
@@ -32,11 +36,16 @@ class GuardAuthenticationListenerTest extends TestCase
 
     public function testHandleSuccess()
     {
-        $authenticator = $this->getMockBuilder('Symfony\Component\Security\Guard\GuardAuthenticatorInterface')->getMock();
+        $authenticator = $this->getMockBuilder(AuthenticatorInterface::class)->getMock();
-        $authenticateToken = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock();
+        $authenticateToken = $this->getMockBuilder(TokenInterface::class)->getMock();
         $providerKey = 'my_firewall';
 
         $credentials = array('username' => 'weaverryan', 'password' => 'all_your_base');
+
+        $authenticator
+            ->expects($this->once())
+            ->method('supports')
+            ->willReturn(true);
         $authenticator
             ->expects($this->once())
             ->method('getCredentials')
@@ -82,10 +91,14 @@ class GuardAuthenticationListenerTest extends TestCase
 
     public function testHandleSuccessStopsAfterResponseIsSet()
     {
-        $authenticator1 = $this->getMockBuilder('Symfony\Component\Security\Guard\GuardAuthenticatorInterface')->getMock();
+        $authenticator1 = $this->getMockBuilder(AuthenticatorInterface::class)->getMock();
-        $authenticator2 = $this->getMockBuilder('Symfony\Component\Security\Guard\GuardAuthenticatorInterface')->getMock();
+        $authenticator2 = $this->getMockBuilder(AuthenticatorInterface::class)->getMock();
 
         // mock the first authenticator to fail, and set a Response
+        $authenticator1
+            ->expects($this->once())
+            ->method('supports')
+            ->willReturn(true);
         $authenticator1
             ->expects($this->once())
             ->method('getCredentials')
@@ -112,10 +125,15 @@ class GuardAuthenticationListenerTest extends TestCase
 
     public function testHandleSuccessWithRememberMe()
     {
-        $authenticator = $this->getMockBuilder('Symfony\Component\Security\Guard\GuardAuthenticatorInterface')->getMock();
+        $authenticator = $this->getMockBuilder(AuthenticatorInterface::class)->getMock();
-        $authenticateToken = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock();
+        $authenticateToken = $this->getMockBuilder(TokenInterface::class)->getMock();
         $providerKey = 'my_firewall_with_rememberme';
 
+        $authenticator
+            ->expects($this->once())
+            ->method('supports')
+            ->with($this->equalTo($this->request))
+            ->willReturn(true);
         $authenticator
             ->expects($this->once())
             ->method('getCredentials')
@@ -155,10 +173,14 @@ class GuardAuthenticationListenerTest extends TestCase
 
     public function testHandleCatchesAuthenticationException()
     {
-        $authenticator = $this->getMockBuilder('Symfony\Component\Security\Guard\GuardAuthenticatorInterface')->getMock();
+        $authenticator = $this->getMockBuilder(AuthenticatorInterface::class)->getMock();
         $providerKey = 'my_firewall2';
 
         $authException = new AuthenticationException('Get outta here crazy user with a bad password!');
+        $authenticator
+            ->expects($this->once())
+            ->method('supports')
+            ->willReturn(true);
         $authenticator
             ->expects($this->once())
             ->method('getCredentials')
@@ -185,6 +207,96 @@ class GuardAuthenticationListenerTest extends TestCase
         $listener->handle($this->event);
     }
 
+    /**
+     * @group legacy
+     */
+    public function testLegacyInterfaceNullCredentials()
+    {
+        $authenticatorA = $this->getMockBuilder(GuardAuthenticatorInterface::class)->getMock();
+        $providerKey = 'my_firewall3';
+
+        $authenticatorA
+            ->expects($this->once())
+            ->method('getCredentials')
+            ->will($this->returnValue(null));
+
+        // this is not called
+        $this->authenticationManager
+            ->expects($this->never())
+            ->method('authenticate');
+
+        $this->guardAuthenticatorHandler
+            ->expects($this->never())
+            ->method('handleAuthenticationSuccess');
+
+        $listener = new GuardAuthenticationListener(
+            $this->guardAuthenticatorHandler,
+            $this->authenticationManager,
+            $providerKey,
+            array($authenticatorA),
+            $this->logger
+        );
+
+        $listener->handle($this->event);
+    }
+
+    /**
+     * @group legacy
+     */
+    public function testLegacyInterfaceKeepsWorking()
+    {
+        $authenticator = $this->getMockBuilder(GuardAuthenticatorInterface::class)->getMock();
+        $authenticateToken = $this->getMockBuilder(TokenInterface::class)->getMock();
+        $providerKey = 'my_firewall';
+
+        $credentials = array('username' => 'weaverryan', 'password' => 'all_your_base');
+
+        $authenticator
+            ->expects($this->once())
+            ->method('getCredentials')
+            ->with($this->equalTo($this->request))
+            ->will($this->returnValue($credentials));
+
+        // a clone of the token that should be created internally
+        $uniqueGuardKey = 'my_firewall_0';
+        $nonAuthedToken = new PreAuthenticationGuardToken($credentials, $uniqueGuardKey);
+
+        $this->authenticationManager
+            ->expects($this->once())
+            ->method('authenticate')
+            ->with($this->equalTo($nonAuthedToken))
+            ->will($this->returnValue($authenticateToken));
+
+        $this->guardAuthenticatorHandler
+            ->expects($this->once())
+            ->method('authenticateWithToken')
+            ->with($authenticateToken, $this->request);
+
+        $this->guardAuthenticatorHandler
+            ->expects($this->once())
+            ->method('handleAuthenticationSuccess')
+            ->with($authenticateToken, $this->request, $authenticator, $providerKey);
+
+        $listener = new GuardAuthenticationListener(
+            $this->guardAuthenticatorHandler,
+            $this->authenticationManager,
+            $providerKey,
+            array($authenticator),
+            $this->logger
+        );
+
+        $listener->setRememberMeServices($this->rememberMeServices);
+        // should never be called - our handleAuthenticationSuccess() does not return a Response
+        $this->rememberMeServices
+            ->expects($this->never())
+            ->method('loginSuccess');
+
+        $listener->handle($this->event);
+    }
+
+    /**
+     * @group legacy
+     */
     public function testReturnNullToSkipAuth()
     {
         $authenticatorA = $this->getMockBuilder('Symfony\Component\Security\Guard\GuardAuthenticatorInterface')->getMock();
@@ -220,6 +332,62 @@ class GuardAuthenticationListenerTest extends TestCase
         $listener->handle($this->event);
     }
 
+    public function testSupportsReturnFalseSkipAuth()
+    {
+        $authenticator = $this->getMockBuilder(AuthenticatorInterface::class)->getMock();
+        $providerKey = 'my_firewall4';
+
+        $authenticator
+            ->expects($this->once())
+            ->method('supports')
+            ->will($this->returnValue(false));
+
+        // this is not called
+        $authenticator
+            ->expects($this->never())
+            ->method('getCredentials');
+
+        $listener = new GuardAuthenticationListener(
+            $this->guardAuthenticatorHandler,
+            $this->authenticationManager,
+            $providerKey,
+            array($authenticator),
+            $this->logger
+        );
+
+        $listener->handle($this->event);
+    }
+
+    /**
+     * @expectedException \UnexpectedValueException
+     */
+    public function testReturnNullFromGetCredentials()
+    {
+        $authenticator = $this->getMockBuilder(AuthenticatorInterface::class)->getMock();
+        $providerKey = 'my_firewall4';
+
+        $authenticator
+            ->expects($this->once())
+            ->method('supports')
+            ->will($this->returnValue(true));
+
+        // this will raise exception
+        $authenticator
+            ->expects($this->once())
+            ->method('getCredentials')
+            ->will($this->returnValue(null));
+
+        $listener = new GuardAuthenticationListener(
+            $this->guardAuthenticatorHandler,
+            $this->authenticationManager,
+            $providerKey,
+            array($authenticator),
+            $this->logger
+        );
+
+        $listener->handle($this->event);
+    }
+
     protected function setUp()
     {
         $this->authenticationManager = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\AuthenticationProviderManager')

src/Symfony/Component/Security/Guard/Tests/GuardAuthenticatorHandlerTest.php

@@ -14,6 +14,7 @@ namespace Symfony\Component\Security\Guard\Tests;
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Security\Guard\AuthenticatorInterface;
 use Symfony\Component\Security\Guard\GuardAuthenticatorHandler;
 use Symfony\Component\Security\Core\Exception\AuthenticationException;
 use Symfony\Component\Security\Http\Event\InteractiveLoginEvent;
@@ -128,7 +129,7 @@ class GuardAuthenticatorHandlerTest extends TestCase
         $this->dispatcher = $this->getMockBuilder('Symfony\Component\EventDispatcher\EventDispatcherInterface')->getMock();
         $this->token = $this->getMockBuilder('Symfony\Component\Security\Core\Authentication\Token\TokenInterface')->getMock();
         $this->request = new Request(array(), array(), array(), array(), array(), array());
-        $this->guardAuthenticator = $this->getMockBuilder('Symfony\Component\Security\Guard\GuardAuthenticatorInterface')->getMock();
+        $this->guardAuthenticator = $this->getMockBuilder(AuthenticatorInterface::class)->getMock();
     }
 
     protected function tearDown()

src/Symfony/Component/Security/Guard/Tests/Provider/GuardAuthenticationProviderTest.php

@@ -12,6 +12,9 @@
 namespace Symfony\Component\Security\Guard\Tests\Provider;
 
 use PHPUnit\Framework\TestCase;
+use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
+use Symfony\Component\Security\Core\User\UserInterface;
+use Symfony\Component\Security\Guard\AuthenticatorInterface;
 use Symfony\Component\Security\Guard\Provider\GuardAuthenticationProvider;
 use Symfony\Component\Security\Guard\Token\PostAuthenticationGuardToken;
 
@@ -28,6 +31,68 @@ class GuardAuthenticationProviderTest extends TestCase
     {
         $providerKey = 'my_cool_firewall';
 
+        $authenticatorA = $this->getMockBuilder(AuthenticatorInterface::class)->getMock();
+        $authenticatorB = $this->getMockBuilder(AuthenticatorInterface::class)->getMock();
+        $authenticatorC = $this->getMockBuilder(AuthenticatorInterface::class)->getMock();
+        $authenticators = array($authenticatorA, $authenticatorB, $authenticatorC);
+
+        // called 2 times - for authenticator A and B (stops on B because of match)
+        $this->preAuthenticationToken->expects($this->exactly(2))
+            ->method('getGuardProviderKey')
+            // it will return the "1" index, which will match authenticatorB
+            ->will($this->returnValue('my_cool_firewall_1'));
+
+        $enteredCredentials = array(
+            'username' => '_weaverryan_test_user',
+            'password' => 'guard_auth_ftw',
+        );
+        $this->preAuthenticationToken->expects($this->atLeastOnce())
+            ->method('getCredentials')
+            ->will($this->returnValue($enteredCredentials));
+
+        // authenticators A and C are never called
+        $authenticatorA->expects($this->never())
+            ->method('getUser');
+        $authenticatorC->expects($this->never())
+            ->method('getUser');
+
+        $mockedUser = $this->getMockBuilder(UserInterface::class)->getMock();
+        $authenticatorB->expects($this->once())
+            ->method('getUser')
+            ->with($enteredCredentials, $this->userProvider)
+            ->will($this->returnValue($mockedUser));
+        // checkCredentials is called
+        $authenticatorB->expects($this->once())
+            ->method('checkCredentials')
+            ->with($enteredCredentials, $mockedUser)
+            // authentication works!
+            ->will($this->returnValue(true));
+        $authedToken = $this->getMockBuilder(TokenInterface::class)->getMock();
+        $authenticatorB->expects($this->once())
+            ->method('createAuthenticatedToken')
+            ->with($mockedUser, $providerKey)
+            ->will($this->returnValue($authedToken));
+
+        // user checker should be called
+        $this->userChecker->expects($this->once())
+            ->method('checkPreAuth')
+            ->with($mockedUser);
+        $this->userChecker->expects($this->once())
+            ->method('checkPostAuth')
+            ->with($mockedUser);
+
+        $provider = new GuardAuthenticationProvider($authenticators, $this->userProvider, $providerKey, $this->userChecker);
+        $actualAuthedToken = $provider->authenticate($this->preAuthenticationToken);
+        $this->assertSame($authedToken, $actualAuthedToken);
+    }
+
+    /**
+     * @group legacy
+     */
+    public function testLegacyAuthenticate()
+    {
+        $providerKey = 'my_cool_firewall';
+
         $authenticatorA = $this->getMockBuilder('Symfony\Component\Security\Guard\GuardAuthenticatorInterface')->getMock();
         $authenticatorB = $this->getMockBuilder('Symfony\Component\Security\Guard\GuardAuthenticatorInterface')->getMock();
         $authenticatorC = $this->getMockBuilder('Symfony\Component\Security\Guard\GuardAuthenticatorInterface')->getMock();

src/Symfony/Component/Security/Guard/Token/PreAuthenticationGuardToken.php

@@ -29,7 +29,7 @@ class PreAuthenticationGuardToken extends AbstractToken implements GuardTokenInt
 
     /**
      * @param mixed  $credentials
-     * @param string $guardProviderKey Unique key that bind this token to a specific GuardAuthenticatorInterface
+     * @param string $guardProviderKey Unique key that bind this token to a specific AuthenticatorInterface
      */
     public function __construct($credentials, $guardProviderKey)
     {

src/Symfony/Component/Translation/DataCollector/TranslationDataCollector.php

@@ -58,6 +58,14 @@ class TranslationDataCollector extends DataCollector implements LateDataCollecto
     {
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        $this->data = array();
+    }
+
     /**
      * @return array
      */

src/Symfony/Component/Validator/DataCollector/ValidatorDataCollector.php

@@ -19,6 +19,7 @@ use Symfony\Component\HttpKernel\DataCollector\LateDataCollectorInterface;
 use Symfony\Component\Validator\Validator\TraceableValidator;
 use Symfony\Component\VarDumper\Caster\Caster;
 use Symfony\Component\VarDumper\Caster\ClassStub;
+use Symfony\Component\VarDumper\Cloner\Data;
 use Symfony\Component\VarDumper\Cloner\Stub;
 
 /**
@@ -31,10 +32,7 @@ class ValidatorDataCollector extends DataCollector implements LateDataCollectorI
     public function __construct(TraceableValidator $validator)
     {
         $this->validator = $validator;
-        $this->data = array(
+        $this->reset();
-            'calls' => array(),
-            'violations_count' => 0,
-        );
     }
 
     /**
@@ -45,6 +43,15 @@ class ValidatorDataCollector extends DataCollector implements LateDataCollectorI
         // Everything is collected once, on kernel terminate.
     }
 
+    public function reset()
+    {
+        $this->validator->reset();
+        $this->data = array(
+            'calls' => $this->cloneVar(array()),
+            'violations_count' => 0,
+        );
+    }
+
     /**
      * {@inheritdoc}
      */
@@ -52,16 +59,22 @@ class ValidatorDataCollector extends DataCollector implements LateDataCollectorI
     {
         $collected = $this->validator->getCollectedData();
         $this->data['calls'] = $this->cloneVar($collected);
-        $this->data['violations_count'] += array_reduce($collected, function ($previous, $item) {
+        $this->data['violations_count'] = array_reduce($collected, function ($previous, $item) {
-            return $previous += count($item['violations']);
+            return $previous + count($item['violations']);
         }, 0);
     }
 
+    /**
+     * @return Data
+     */
     public function getCalls()
     {
         return $this->data['calls'];
     }
 
+    /**
+     * @return int
+     */
     public function getViolationsCount()
     {
         return $this->data['violations_count'];

src/Symfony/Component/Validator/Tests/DataCollector/ValidatorDataCollectorTest.php

@@ -50,6 +50,33 @@ class ValidatorDataCollectorTest extends TestCase
         $this->assertCount(2, $call['violations']);
     }
 
+    public function testReset()
+    {
+        $originalValidator = $this->createMock(ValidatorInterface::class);
+        $validator = new TraceableValidator($originalValidator);
+
+        $collector = new ValidatorDataCollector($validator);
+
+        $violations = new ConstraintViolationList(array(
+            $this->createMock(ConstraintViolation::class),
+            $this->createMock(ConstraintViolation::class),
+        ));
+        $originalValidator->method('validate')->willReturn($violations);
+
+        $validator->validate(new \stdClass());
+
+        $collector->lateCollect();
+        $collector->reset();
+
+        $this->assertCount(0, $collector->getCalls());
+        $this->assertSame(0, $collector->getViolationsCount());
+
+        $collector->lateCollect();
+
+        $this->assertCount(0, $collector->getCalls());
+        $this->assertSame(0, $collector->getViolationsCount());
+    }
+
     protected function createMock($classname)
     {
         return $this->getMockBuilder($classname)->disableOriginalConstructor()->getMock();

src/Symfony/Component/Validator/Validator/TraceableValidator.php

@@ -11,7 +11,6 @@
 
 namespace Symfony\Component\Validator\Validator;
 
-use Symfony\Component\Validator\ConstraintViolationList;
 use Symfony\Component\Validator\Context\ExecutionContextInterface;
 
 /**
@@ -30,13 +29,18 @@ class TraceableValidator implements ValidatorInterface
     }
 
     /**
-     * @return ConstraintViolationList[]
+     * @return array
      */
     public function getCollectedData()
     {
         return $this->collectedData;
     }
 
+    public function reset()
+    {
+        $this->collectedData = array();
+    }
+
     /**
      * {@inheritdoc}
      */

src/Symfony/Component/VarDumper/CHANGELOG.md

@@ -16,6 +16,7 @@ CHANGELOG
 -----
 
  * added `AbstractCloner::setMinDepth()` function to ensure minimum tree depth
+ * deprecated `MongoCaster`
 
 2.7.0
 -----