From 919f16a7d613a5054a25d28769e9fa628b31adbe Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Fri, 6 May 2011 19:04:39 +0200
Subject: [PATCH] [Serializer] Add support for Traversable objects

---
 src/Symfony/Component/Serializer/Serializer.php | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/Symfony/Component/Serializer/Serializer.php b/src/Symfony/Component/Serializer/Serializer.php
index 183e17ef0fe3..0933eab677ae 100644
--- a/src/Symfony/Component/Serializer/Serializer.php
+++ b/src/Symfony/Component/Serializer/Serializer.php
@@ -113,6 +113,13 @@ public function normalize($data, $format = null)
             }
             return $data;
         }
+        if ($data instanceof Traversable) {
+            $normalized = array();
+            foreach ($data as $key => $val) {
+                $normalized[$key] = $this->isStructuredType($val) ? $this->normalize($val, $format) : $val;
+            }
+            return $normalized;
+        }
         if (is_object($data)) {
             return $this->normalizeObject($data, $format);
         }