V4: Rewrite qv4sequenceobject based on QMetaSequence

This avoids the template explosion and makes the mechanism extendable.
You can now register additional anonymous sequential containers.

Fixes: QTBUG-71574
Task-number: QTBUG-82443
Change-Id: I5b9ed9af1533a3b7df8fc5bb37bbb73b8304e592
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

1 files changed, 16 insertions, 0 deletions

diff --git a/src/qml/qml/qqml.h b/src/qml/qml/qqml.h
index f399924447..758b0a51cf 100644
--- a/src/qml/qml/qqml.h
+++ b/src/qml/qml/qqml.h
@@ -45,6 +45,7 @@
 
 #include <QtCore/qbytearray.h>
 #include <QtCore/qmetaobject.h>
+#include <QtCore/qmetacontainer.h>
 #include <QtCore/qversionnumber.h>
 
 #define QML_VERSION     0x020000
@@ -758,6 +759,21 @@ inline int qmlRegisterType(const QUrl &url, const char *uri, int versionMajor, i
     return QQmlPrivate::qmlregister(QQmlPrivate::CompositeRegistration, &type);
 }
 
+template<typename Container>
+inline int qmlRegisterAnonymousSequentialContainer(const char *uri, int versionMajor)
+{
+    QQmlPrivate::RegisterSequentialContainer type = {
+        0,
+        uri,
+        QTypeRevision::fromMajorVersion(versionMajor),
+        nullptr,
+        QMetaType::fromType<Container>(),
+        QMetaSequence::fromContainer<Container>()
+    };
+
+    return QQmlPrivate::qmlregister(QQmlPrivate::SequentialContainerRegistration, &type);
+}
+
 template<class T, class Resolved, class Extended, bool Singleton, bool Interface>
 struct QmlTypeAndRevisionsRegistration;