Merge branch '2.8' into 3.0

* 2.8: (48 commits)
  [Process] Use stream based storage to avoid memory issues
  Fix upgrade guides concerning erroneous removal of assets helper
  [Process] Remove a misleading comment
  Fix markdown typo
  ChooseBaseUrl should return an index
  [Form] ChoiceType: Fix a notice when 'choices' normalizer is replaced
  Improve the phpdoc of SplFileInfo methods
  [Process] Use stream based storage to avoid memory issues
  [FrameworkBundle] Don't log twice with the error handler
  synchronize 2.8 and 3.0 upgrade files
  Remove useless is_object condition
  [Process] Fix typo, no arguments needed anymore
  [Serializer] Introduce constants for context keys
  Fixed the documentation of VoterInterface::supportsAttribute
  Fixed Bootstrap form theme form "reset" buttons
  Fixed the form profiler when using long form types
  [PropertyInfo] PhpDocExtractor: Fix a notice when the property doesn't exist
  Remove useless duplicated tests
  [FrameworkBundle] Optimize framework extension tests
  synchronize 2.7 and 3.0 upgrade files
  ...

Author: fabpot

DependencyInjection/Compiler/AddConsoleCommandPass.php

@@ -37,8 +37,7 @@ public function process(ContainerBuilder $container)
             }
 
             $class = $container->getParameterBag()->resolveValue($definition->getClass());
-            $r = new \ReflectionClass($class);
-            if (!$r->isSubclassOf('Symfony\\Component\\Console\\Command\\Command')) {
+            if (!is_subclass_of($class, 'Symfony\\Component\\Console\\Command\\Command')) {
                 throw new \InvalidArgumentException(sprintf('The service "%s" tagged "console.command" must be a subclass of "Symfony\\Component\\Console\\Command\\Command".', $id));
             }
             $container->setAlias('console.command.'.strtolower(str_replace('\\', '_', $class)), $id);

Tests/DependencyInjection/FrameworkExtensionTest.php

@@ -22,6 +22,8 @@
 
 abstract class FrameworkExtensionTest extends TestCase
 {
+    private static $containerCache = array();
+
     abstract protected function loadFromFile(ContainerBuilder $container, $file);
 
     public function testFormCsrfProtection()
@@ -482,6 +484,10 @@ protected function createContainer(array $data = array())
 
     protected function createContainerFromFile($file, $data = array())
     {
+        $cacheKey = md5($file.serialize($data));
+        if (isset(self::$containerCache[$cacheKey])) {
+            return self::$containerCache[$cacheKey];
+        }
         $container = $this->createContainer($data);
         $container->registerExtension(new FrameworkExtension());
         $this->loadFromFile($container, $file);
@@ -490,7 +496,7 @@ protected function createContainerFromFile($file, $data = array())
         $container->getCompilerPassConfig()->setRemovingPasses(array());
         $container->compile();
 
-        return $container;
+        return self::$containerCache[$cacheKey] = $container;
     }
 
     protected function createContainerFromClosure($closure, $data = array())

Translation/PhpExtractor.php

@@ -60,6 +60,11 @@ public function extract($resource, MessageCatalogue $catalog)
         $files = $this->extractFiles($resource);
         foreach ($files as $file) {
             $this->parseTokens(token_get_all(file_get_contents($file)), $catalog);
+
+            if (PHP_VERSION_ID >= 70000) {
+                // PHP 7 memory manager will not release after token_get_all(), see https://bugs.php.net/70098
+                gc_mem_caches();
+            }
         }
     }
 
@@ -80,7 +85,7 @@ public function setPrefix($prefix)
      */
     protected function normalizeToken($token)
     {
-        if (is_array($token)) {
+        if (isset($token[1]) && 'b"' !== $token) {
             return $token[1];
         }
 
@@ -94,7 +99,7 @@ private function seekToNextRelevantToken(\Iterator $tokenIterator)
     {
         for (; $tokenIterator->valid(); $tokenIterator->next()) {
             $t = $tokenIterator->current();
-            if (!is_array($t) || ($t[0] !== T_WHITESPACE)) {
+            if (T_WHITESPACE !== $t[0]) {
                 break;
             }
         }
@@ -111,7 +116,7 @@ private function getMessage(\Iterator $tokenIterator)
 
         for (; $tokenIterator->valid(); $tokenIterator->next()) {
             $t = $tokenIterator->current();
-            if (!is_array($t)) {
+            if (!isset($t[1])) {
                 break;
             }