From 2e68801ff3524d1a7ee1856d25151d7cffc373d6 Mon Sep 17 00:00:00 2001
From: Victor Berchet <victor.berchet@yahoo.com>
Date: Tue, 10 May 2011 20:19:39 +0200
Subject: [PATCH] [Form] Add argument type checking in BaseDateTimeTransformer

---
 .../Core/DataTransformer/BaseDateTimeTransformer.php   | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/Symfony/Component/Form/Extension/Core/DataTransformer/BaseDateTimeTransformer.php b/src/Symfony/Component/Form/Extension/Core/DataTransformer/BaseDateTimeTransformer.php
index bdf3db8c4d38..2eee7c05d0ef 100644
--- a/src/Symfony/Component/Form/Extension/Core/DataTransformer/BaseDateTimeTransformer.php
+++ b/src/Symfony/Component/Form/Extension/Core/DataTransformer/BaseDateTimeTransformer.php
@@ -32,9 +32,19 @@ abstract class BaseDateTimeTransformer implements DataTransformerInterface
      *
      * @param string $inputTimezone  The name of the input timezone
      * @param string $outputTimezone The name of the output timezone
+     *
+     * @throws UnexpectedTypeException if a timezone is not a string
      */
     public function __construct($inputTimezone = null, $outputTimezone = null)
     {
+        if (!is_string($inputTimezone) && null !== $inputTimezone) {
+            throw new UnexpectedTypeException($inputTimezone, 'string');
+        }
+
+        if (!is_string($outputTimezone) && null !== $outputTimezone) {
+            throw new UnexpectedTypeException($outputTimezone, 'string');
+        }
+
         $this->inputTimezone = $inputTimezone ?: date_default_timezone_get();
         $this->outputTimezone = $outputTimezone ?: date_default_timezone_get();
     }