Add JavaScript "var" property type to QML

This commit adds a new syntax which allows "var" type properties
which can have JavaScript objects (as well as other basic types)
assigned to them. Such JavaScript objects cannot be bound to.

Task-number: QMLNG-18
Change-Id: If7f5045f4669e0d5c1b8d0891ed765128d0bc1c6
Reviewed-on: http://codereview.qt-project.org/1466
Reviewed-by: Aaron Kennedy <aaron.kennedy@nokia.com>

1 files changed, 44 insertions, 0 deletions

diff --git a/tests/auto/declarative/qdeclarativeecmascript/data/propertyVar.circular.qml b/tests/auto/declarative/qdeclarativeecmascript/data/propertyVar.circular.qml
new file mode 100644
index 0000000000..171d7747cd
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeecmascript/data/propertyVar.circular.qml
@@ -0,0 +1,44 @@
+import QtQuick 2.0
+import Qt.test 1.0
+
+Item {
+    id: testCircular
+
+    property var varProperty
+    property variant canaryResource
+    property int canaryInt
+
+    function constructGarbage() {
+        var retn = 1;
+        var component = Qt.createComponent("PropertyVarCircularComponent.qml");
+        if (component.status == Component.Ready) {
+            retn = component.createObject(null); // has JavaScript ownership
+        }
+        return retn;
+    }
+
+    function deassignCanaryResource() {
+        canaryResource = 1;
+        gc();
+    }
+
+    function assignCircular() {
+        varProperty = constructGarbage();
+        canaryResource = varProperty.vp.vp.vp.vp.memoryHog;
+        canaryInt = varProperty.vp.vp.vp.vp.fifthCanary; // == 5
+        gc();
+    }
+
+    function deassignCircular() {
+        canaryInt = 2;
+        varProperty = 2;
+        gc();
+    }
+
+    function assignThenDeassign() {
+        varProperty = constructGarbage();
+        varProperty = 2;
+        gc();
+    }
+}
+