Don't construct VisualDataModel attached properties unless requested.

This saves allocating a QObject per item model in the common case.

Change-Id: I0e77e6c6c0c64ac6c5e482ef55e194c68e778b32
Reviewed-by: Bea Lam <bea.lam@nokia.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/tests/auto/quick/qquickvisualdatamodel/data/invalidAttachment.qml b/tests/auto/quick/qquickvisualdatamodel/data/invalidAttachment.qml
new file mode 100644
index 0000000000..2758f56d0f
--- /dev/null
+++ b/tests/auto/quick/qquickvisualdatamodel/data/invalidAttachment.qml
@@ -0,0 +1,19 @@
+import QtQuick 2.0
+
+Item {
+    property VisualDataModel invalidVdm: VisualDataModel.model
+    Repeater {
+        model: 1
+        delegate: Item {
+            id: outer
+            objectName: "delegate"
+
+            property VisualDataModel validVdm: outer.VisualDataModel.model
+            property VisualDataModel invalidVdm: inner.VisualDataModel.model
+
+            Item {
+                id: inner
+            }
+        }
+    }
+}