Fix crash when loading invalid QML with behavior on invalid group property

Behaviors require the creation of a meta-object. However when trying to
create a behavior on a non-existent group property, we don't have a
base meta-object to base the "new" meta-object on, therefore this patch
adds a null pointer check.

The error in the QML file itself will be caught later on. The added test
ensures that as well as that it doesn't crash of course.

Change-Id: If73116053464e7e69b02ef59e8387060835083c8
Task-number: QTBUG-40369
Reviewed-by: Sérgio Martins <sergio.martins@kdab.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp b/tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp
index 95d6eb9262..7976987b58 100644
--- a/tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp
+++ b/tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp
@@ -347,6 +347,7 @@ void tst_qqmllanguage::errors_data()
     QTest::newRow("nonexistantProperty.5") << "nonexistantProperty.5.qml" << "nonexistantProperty.5.errors.txt" << false;
     QTest::newRow("nonexistantProperty.6") << "nonexistantProperty.6.qml" << "nonexistantProperty.6.errors.txt" << false;
     QTest::newRow("nonexistantProperty.7") << "nonexistantProperty.7.qml" << "nonexistantProperty.7.errors.txt" << false;
+    QTest::newRow("nonexistantProperty.8") << "nonexistantProperty.8.qml" << "nonexistantProperty.8.errors.txt" << false;
 
     QTest::newRow("wrongType (string for int)") << "wrongType.1.qml" << "wrongType.1.errors.txt" << false;
     QTest::newRow("wrongType (int for bool)") << "wrongType.2.qml" << "wrongType.2.errors.txt" << false;