Fix QJsonValue comparison.

QJsonValue, while comparing two QJsonObjects, should consult also length
of the objects, because a different than null base pointer doesn't mean
that an object is not empty.

Change-Id: Ibee1849ef9fed15d32f2c8f2aad9b053846e46b7
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/src/corelib/json/qjsonvalue.cpp b/src/corelib/json/qjsonvalue.cpp
index 1224a24709..deca70c3ea 100644
--- a/src/corelib/json/qjsonvalue.cpp
+++ b/src/corelib/json/qjsonvalue.cpp
@@ -613,8 +613,10 @@ bool QJsonValue::operator==(const QJsonValue &other) const
     case Object:
         if (base == other.base)
             return true;
-        if (!base || !other.base)
-            return false;
+        if (!base)
+            return !other.base->length;
+        if (!other.base)
+            return !base->length;
         return QJsonObject(d, static_cast<QJsonPrivate::Object *>(base))
                 == QJsonObject(other.d, static_cast<QJsonPrivate::Object *>(other.base));
     }