From b1308a37eaa3bc2e3e28642881220040f9f3eae2 Mon Sep 17 00:00:00 2001
From: Lars Knoll <lars.knoll@digia.com>
Date: Tue, 5 Feb 2013 22:14:03 +0100
Subject: [PATCH] Don't insert undefined elements into the sparse array

When converting to a sparse array, skip the missing
elements.

Change-Id: Ic5ae7973c200d530ad4f89aa23b46a2581198b5a
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
---
 src/v4/qv4object.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/v4/qv4object.cpp b/src/v4/qv4object.cpp
index d8231b5..5e57c89 100644
--- a/src/v4/qv4object.cpp
+++ b/src/v4/qv4object.cpp
@@ -851,8 +851,10 @@ void Object::initSparse()
     if (!sparseArray) {
         sparseArray = new SparseArray;
         for (int i = 0; i < arrayDataLen; ++i) {
-            SparseArrayNode *n = sparseArray->insert(i);
-            n->value = i + arrayOffset;
+            if (arrayData[i].type != PropertyDescriptor::Generic) {
+                SparseArrayNode *n = sparseArray->insert(i);
+                n->value = i + arrayOffset;
+            }
         }
 
         uint off = arrayOffset;
-- 
2.7.4