[Validator] Added ObjectInitializer visitor

src/Symfony/Component/Validator/Context/ExecutionContextManager.php

@@ -45,8 +45,7 @@ class ExecutionContextManager extends AbstractVisitor implements ExecutionContex
     public function __construct(GroupManagerInterface $groupManager)
     {
         $this->groupManager = $groupManager;
-
-        $this->reset();
+        $this->contextStack = new \SplStack();
     }
 
     public function initialize(ValidatorInterface $validator)
@@ -95,7 +94,7 @@ class ExecutionContextManager extends AbstractVisitor implements ExecutionContex
 
     public function afterTraversal(array $nodes)
     {
-        $this->reset();
+        $this->contextStack = new \SplStack();
     }
 
     public function enterNode(Node $node)
@@ -115,9 +114,4 @@ class ExecutionContextManager extends AbstractVisitor implements ExecutionContex
 
         $this->currentContext->popNode();
     }
-
-    private function reset()
-    {
-        $this->contextStack = new \SplStack();
-    }
 }

src/Symfony/Component/Validator/NodeVisitor/ObjectInitializer.php

@@ -0,0 +1,48 @@
+<?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\Validator\NodeVisitor;
+
+use Symfony\Component\Validator\Node\ClassNode;
+use Symfony\Component\Validator\Node\Node;
+use Symfony\Component\Validator\ObjectInitializerInterface;
+
+/**
+ * @since  %%NextVersion%%
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+class ObjectInitializer extends AbstractVisitor
+{
+    /**
+     * @var ObjectInitializerInterface[]
+     */
+    private $initializers;
+
+    public function __construct(array $initializers)
+    {
+        foreach ($initializers as $initializer) {
+            if (!$initializer instanceof ObjectInitializerInterface) {
+                throw new \LogicException('Validator initializers must implement ObjectInitializerInterface.');
+            }
+        }
+
+        $this->initializers = $initializers;
+    }
+
+    public function enterNode(Node $node)
+    {
+        if ($node instanceof ClassNode) {
+            foreach ($this->initializers as $initializer) {
+                $initializer->initialize($node->value);
+            }
+        }
+    }
+}