Handle exceptions inside QV8QObjectConnectionList::qt_metacall

Previously, exceptions were not handled in the connectionlist.
This could cause v8 to assert under certain circumstances.

Task-number: QTBUG-23375
Change-Id: Ie5f043b50bb6b02a77be464ca18ea8e3bbb0f501
Reviewed-by: Alan Alpert <alan.alpert@nokia.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/tests/auto/declarative/qdeclarativeecmascript/data/qobjectConnectionListExceptionHandling.qml b/tests/auto/declarative/qdeclarativeecmascript/data/qobjectConnectionListExceptionHandling.qml
new file mode 100644
index 0000000000..acd512a2be
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeecmascript/data/qobjectConnectionListExceptionHandling.qml
@@ -0,0 +1,24 @@
+import QtQuick 2.0
+
+Item {
+    id: root
+    property int first: 5
+    property bool test: false
+
+    Item {
+        id: exceptional
+        function exceptionalFunction() {
+            var obj = undefined;
+            var prop = undefined;
+            return obj[prop];
+        }
+    }
+
+    Component.onCompleted: {
+        root["firstChanged"].connect(exceptional.exceptionalFunction);
+        root["firstChanged"].connect(exceptional.exceptionalFunction);
+        root["firstChanged"].connect(exceptional.exceptionalFunction);
+        first = 6;
+        test = true;
+    }
+}