Merge branch '2.7' into 2.8

* 2.7:
  Regression test for missing controller arguments
  fix a test checking for a value
  [Form][DX] FileType "multiple" fixes
  fixed CS
  [TwigBundle] Fix twig loader registered twice
  [Console] Fix wrong handling of multiline arg/opt descriptions
  [DependencyInjection] PhpDumper.php: hasReference() should not search references in lazy service arguments.
  [Form] fixed "empty_value" option deprecation

Author: fabpot

Compiler/CheckCircularReferencesPass.php

@@ -60,14 +60,18 @@ private function checkOutEdges(array $edges)
             $id = $node->getId();
 
             if (empty($this->checkedNodes[$id])) {
-                $searchKey = array_search($id, $this->currentPath);
-                $this->currentPath[] = $id;
 
-                if (false !== $searchKey) {
-                    throw new ServiceCircularReferenceException($id, array_slice($this->currentPath, $searchKey));
-                }
+                // don't check circular dependencies for lazy services
+                if (!$node->getValue() || !$node->getValue()->isLazy()) {
+                    $searchKey = array_search($id, $this->currentPath);
+                    $this->currentPath[] = $id;
+
+                    if (false !== $searchKey) {
+                        throw new ServiceCircularReferenceException($id, array_slice($this->currentPath, $searchKey));
+                    }
 
-                $this->checkOutEdges($node->getOutEdges());
+                    $this->checkOutEdges($node->getOutEdges());
+                }
 
                 $this->checkedNodes[$id] = true;
                 array_pop($this->currentPath);

Dumper/PhpDumper.php

@@ -1313,6 +1313,13 @@ private function hasReference($id, array $arguments, $deep = false, array &$visi
                     $visited[$argumentId] = true;
 
                     $service = $this->container->getDefinition($argumentId);
+
+                    // if the proxy manager is enabled, disable searching for references in lazy services,
+                    // as these services will be instantiated lazily and don't have direct related references.
+                    if ($service->isLazy() && !$this->getProxyDumper() instanceof NullDumper) {
+                        continue;
+                    }
+
                     $arguments = array_merge($service->getMethodCalls(), $service->getArguments(), $service->getProperties());
 
                     if ($this->hasReference($id, $arguments, $deep, $visited)) {

Tests/Dumper/PhpDumperTest.php

@@ -11,6 +11,7 @@
 
 namespace Symfony\Component\DependencyInjection\Tests\Dumper;
 
+use DummyProxyDumper;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Dumper\PhpDumper;
 use Symfony\Component\DependencyInjection\ParameterBag\ParameterBag;
@@ -19,6 +20,8 @@
 use Symfony\Component\DependencyInjection\Variable;
 use Symfony\Component\ExpressionLanguage\Expression;
 
+require_once __DIR__.'/../Fixtures/includes/classes.php';
+
 class PhpDumperTest extends \PHPUnit_Framework_TestCase
 {
     protected static $fixturesPath;
@@ -294,4 +297,52 @@ public function testInitializePropertiesBeforeMethodCalls()
         $container = new \Symfony_DI_PhpDumper_Test_Properties_Before_Method_Calls();
         $this->assertTrue($container->get('bar')->callPassed(), '->dump() initializes properties before method calls');
     }
+
+    public function testCircularReferenceAllowanceForLazyServices()
+    {
+        $container = new ContainerBuilder();
+        $container->register('foo', 'stdClass')->addArgument(new Reference('bar'));
+        $container->register('bar', 'stdClass')->setLazy(true)->addArgument(new Reference('foo'));
+        $container->compile();
+
+        $dumper = new PhpDumper($container);
+        $dumper->dump();
+    }
+
+    public function testCircularReferenceAllowanceForInlinedDefinitionsForLazyServices()
+    {
+        /*
+         *   test graph:
+         *              [connection] -> [event_manager] --> [entity_manager](lazy)
+         *                                                           |
+         *                                                           --(call)- addEventListener ("@lazy_service")
+         *
+         *              [lazy_service](lazy) -> [entity_manager](lazy)
+         *
+         */
+
+        $container = new ContainerBuilder();
+
+        $eventManagerDefinition = new Definition('stdClass');
+
+        $connectionDefinition = $container->register('connection', 'stdClass');
+        $connectionDefinition->addArgument($eventManagerDefinition);
+
+        $container->register('entity_manager', 'stdClass')
+            ->setLazy(true)
+            ->addArgument(new Reference('connection'));
+
+        $lazyServiceDefinition = $container->register('lazy_service', 'stdClass');
+        $lazyServiceDefinition->setLazy(true);
+        $lazyServiceDefinition->addArgument(new Reference('entity_manager'));
+
+        $eventManagerDefinition->addMethodCall('addEventListener', array(new Reference('lazy_service')));
+
+        $container->compile();
+
+        $dumper = new PhpDumper($container);
+
+        $dumper->setProxyDumper(new DummyProxyDumper());
+        $dumper->dump();
+    }
 }

Tests/Fixtures/includes/classes.php

@@ -1,5 +1,8 @@
 <?php
 
+use Symfony\Component\DependencyInjection\Definition;
+use Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\DumperInterface as ProxyDumper;
+
 function sc_configure($instance)
 {
     $instance->configure();
@@ -76,3 +79,21 @@ public function callPassed()
         return $this->callPassed;
     }
 }
+
+class DummyProxyDumper implements ProxyDumper
+{
+    public function isProxyCandidate(Definition $definition)
+    {
+        return false;
+    }
+
+    public function getProxyFactoryCode(Definition $definition, $id)
+    {
+        return '';
+    }
+
+    public function getProxyCode(Definition $definition)
+    {
+        return '';
+    }
+}