Register QML types only when used

Prototype following idea for new static_qml_type_registration config feature:

QtQuickTemplates2Plugin::QtQuickTemplates2Plugin(QObject *parent)
    : QQmlExtensionPlugin(parent)

Unknown macro: { #if !QT_CONFIG(static_qml_type_registration)     volatile auto registration = &qml_register_types_QtQuick_Templates; #endif     volatile auto initialization = &QQuickTemplates_initializeModule;       Q_UNUSED(registration)     Q_UNUSED(initialization) }

New function into plugin

template <typedef T>

registerPluginQmlType()

{

 

  if ( validId != qMetaTypeId<T>())

 

Unknown macro: {     qmlRegisterTypesAndRevisions<T>("plugin", version);   }

}

Then in each generated qmlcache file would do following for each used type. This is done during binary load - before aotBuiltFunctions is initialized.

#if QT_CONFIG(jit_qml_type_registration)

    registerPluginQmlType<UsedType>()

#endif

 

This would save around 5KB per type (Atleast with qmlRegisterTypesAndRevisions<QQuickDelayButton>("QtQuick.Templates", 6)