From d96e2c5d79a35fea38147669a456532281550761 Mon Sep 17 00:00:00 2001
From: John Wards <johnwards@gmail.com>
Date: Tue, 10 May 2011 12:12:18 +0100
Subject: [PATCH] [Validator] Adding support for Closure in CallbackValidator

Usage:
$formBuilder = $this->get('form.factory')
            ->createBuilder('form');
$formBuilder->setAttribute('validation_constraint', new Callback(array("methods"=>array(
    'validate' => function ($data, $context) use ($elements) {
       // logic to add violations depending on the elements
    }
))));
---
 .../Component/Validator/Constraints/CallbackValidator.php       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Symfony/Component/Validator/Constraints/CallbackValidator.php b/src/Symfony/Component/Validator/Constraints/CallbackValidator.php
index 71bceb36b7ae..102838d80c5d 100644
--- a/src/Symfony/Component/Validator/Constraints/CallbackValidator.php
+++ b/src/Symfony/Component/Validator/Constraints/CallbackValidator.php
@@ -45,7 +45,7 @@ public function isValid($object, Constraint $constraint)
         $propertyPath = $context->getPropertyPath();
 
         foreach ($methods as $method) {
-            if (is_array($method)) {
+            if (is_array($method) || $method instanceof \Closure) {
                 if (!is_callable($method)) {
                     throw new ConstraintDefinitionException(sprintf('"%s::%s" targeted by Callback constraint is not a valid callable', $method[0], $method[1]));
                 }