symfony
diff --git a/‎src/Symfony/Component/Form/Extension/Validator/Type/UploadValidatorExtension.php‎
Lines changed: 20 additions & 4 deletions b/‎src/Symfony/Component/Form/Extension/Validator/Type/UploadValidatorExtension.php‎
Lines changed: 20 additions & 4 deletions
@@ -24,6 +24,7 @@ class UploadValidatorExtension extends AbstractTypeExtension
 {
     private $translator;
     private $translationDomain;
+    private $errorMessage = 'post_max_size_message';
 
     /**
      * @param TranslatorInterface $translator        The translator for translating error messages
@@ -40,11 +41,11 @@ public function __construct(TranslatorInterface $translator, $translationDomain
      */
     public function configureOptions(OptionsResolver $resolver)
     {
-        $translator = $this->translator;
-        $translationDomain = $this->translationDomain;
+        $self = $this;
+        $resolver->setNormalizer('post_max_size_message', function (Options $options, $errorMessage) use ($self) {
+            $self->setErrorMessage($errorMessage);
 
-        $resolver->setNormalizer('post_max_size_message', function (Options $options, $errorMessage) use ($translator, $translationDomain) {
-            return $translator->trans($errorMessage, array(), $translationDomain);
+            return $self;
         });
     }
 
@@ -55,4 +56,19 @@ public function getExtendedType()
     {
         return 'form';
     }
+
+    public function __toString()
+    {
+        return $this->translator->trans($this->errorMessage, array(), $this->translationDomain);
+    }
+
+    /**
+     * This method is public because it needs to be callable from a closure in PHP 5.3.
+     *
+     * @internal
+     */
+    public function setErrorMessage($errorMessage)
+    {
+        $this->errorMessage = $errorMessage;
+    }
 }