qmltyperegistrar: Make sure we have metatypes for all QML types

We need to be able to resolve any QML type from its C++ name using
QMetaType::fromName(). qmltyperegistrar can generate the missing
metatypes, either by creating synthetic ones (for namespaces), or by
making sure the existing ones are registered (for others).

Change-Id: If775af56d891f2c2a5bb94589b3cb05a199c7c35
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

1 files changed, 24 insertions, 0 deletions

diff --git a/src/qml/qml/qqmlprivate.h b/src/qml/qml/qqmlprivate.h
index 1b994b88e1..608a0f0188 100644
--- a/src/qml/qml/qqmlprivate.h
+++ b/src/qml/qml/qqmlprivate.h
@@ -904,6 +904,30 @@ namespace QQmlPrivate
             const char *uri, int versionMajor, const QMetaObject *classInfoMetaObject,
             QVector<int> *qmlTypeIds, const QMetaObject *);
 
+    constexpr QtPrivate::QMetaTypeInterface metaTypeForNamespace(
+            const QtPrivate::QMetaTypeInterface::MetaObjectFn &metaObjectFunction, const char *name)
+    {
+        return {
+            /*.revision=*/ 0,
+            /*.alignment=*/ 0,
+            /*.size=*/ 0,
+            /*.flags=*/ 0,
+            /*.typeId=*/ {},
+            /*.metaObject=*/ metaObjectFunction,
+            /*.name=*/ name,
+            /*.defaultCtr=*/ nullptr,
+            /*.copyCtr=*/ nullptr,
+            /*.moveCtr=*/ nullptr,
+            /*.dtor=*/ nullptr,
+            /*.equals*/ nullptr,
+            /*.lessThan*/ nullptr,
+            /*.debugStream=*/ nullptr,
+            /*.dataStreamOut=*/ nullptr,
+            /*.dataStreamIn=*/ nullptr,
+            /*.legacyRegisterOp=*/ nullptr
+        };
+    }
+
 } // namespace QQmlPrivate
 
 QT_END_NAMESPACE