Merge remote-tracking branch 'origin/5.5' into dev

Conflicts:
	src/qml/jsruntime/qv4engine_p.h
	src/quick/items/qquickitemsmodule.cpp
	src/quick/items/qquicktext.cpp
	src/quick/util/qquickpixmapcache.cpp
	tests/auto/quick/qquickwindow/tst_qquickwindow.cpp

Change-Id: I90ecaad6a4bfaa4f36149a7463f4d7141f4a516a

1 files changed, 7 insertions, 6 deletions

diff --git a/src/qml/qml/qqmlvmemetaobject.cpp b/src/qml/qml/qqmlvmemetaobject.cpp
index 586d4aa0b1..15017a2572 100644
--- a/src/qml/qml/qqmlvmemetaobject.cpp
+++ b/src/qml/qml/qqmlvmemetaobject.cpp
@@ -1225,6 +1225,11 @@ void QQmlVMEMetaObject::ensureQObjectWrapper()
 
 void QQmlVMEMetaObject::mark(QV4::ExecutionEngine *e)
 {
+    QQmlEnginePrivate *ep = (ctxt == 0 || ctxt->engine == 0) ? 0 : QQmlEnginePrivate::get(ctxt->engine);
+    QV4::ExecutionEngine *v4 = (ep == 0) ? 0 : ep->v4engine();
+    if (v4 != e)
+        return;
+
     varProperties.markOnce(e);
 
     // add references created by VMEVariant properties
@@ -1232,12 +1237,8 @@ void QQmlVMEMetaObject::mark(QV4::ExecutionEngine *e)
     for (int ii = 0; ii < maxDataIdx; ++ii) { // XXX TODO: optimize?
         if (data[ii].dataType() == QMetaType::QObjectStar) {
             // possible QObject reference.
-            QObject *ref = data[ii].asQObject();
-            if (ref) {
-                QQmlData *ddata = QQmlData::get(ref);
-                if (ddata)
-                    ddata->jsWrapper.markOnce(e);
-            }
+            if (QObject *ref = data[ii].asQObject())
+                QV4::QObjectWrapper::markWrapper(ref, e);
         }
     }