--- /dev/null
+<?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\Constraints;
+
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\ConstraintValidator;
+use Symfony\Component\Validator\Exception\UnexpectedTypeException;
+
+/**
+ * @author Christian Flothmann <christian.flothmann@sensiolabs.de>
+ */
+class ValidValidator extends ConstraintValidator
+{
+ public function validate($value, Constraint $constraint)
+ {
+ if (!$constraint instanceof Valid) {
+ throw new UnexpectedTypeException($constraint, __NAMESPACE__.'\Valid');
+ }
+
+ if (null === $value) {
+ return;
+ }
+
+ $this->context
+ ->getValidator()
+ ->inContext($this->context)
+ ->validate($value, null, array($this->context->getGroup()));
+ }
+}