From 9519a084f18ddb2e772ca4be27c0bf834f364f55 Mon Sep 17 00:00:00 2001
From: Fabien Potencier <fabien.potencier@gmail.com>
Date: Wed, 9 Jun 2010 16:03:58 +0200
Subject: [PATCH] fixed toXml() method when some nodes are null

---
 lib/Twig/Node.php |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/lib/Twig/Node.php b/lib/Twig/Node.php
index 9fc162d..488918d 100644
--- a/lib/Twig/Node.php
+++ b/lib/Twig/Node.php
@@ -79,6 +79,10 @@ class Twig_Node implements Twig_NodeInterface, ArrayAccess, Countable, Iterator
         }
 
         foreach ($this->nodes as $name => $n) {
+            if (null === $n) {
+                continue;
+            }
+
             $child = $n->toXml(true)->getElementsByTagName('node')->item(0);
             $child = $dom->importNode($child, true);
             $child->setAttribute('name', $name);
-- 
1.7.2.5