Does xmake provide facilities for qt_add_qml_module?

[smac89]

I'm trying to register a singleton using the method described here, but it doesn't seem it is being registered properly, or I'm not doing something right.

In my xmake.lua file, the only rule I added was add_rules("qt.quickapp"). I also added the .qrc file which contains all my .qml files.

The class itself is in a file called smv_app.(hpp/cpp), and looks something like this:

class App: public QObject
{
  Q_OBJECT
  QML_ELEMENT
  QML_SINGLETON
  ...

public:
  inline static auto foo = 1;
};

In my main.qml, I try to get the property using:

Component.onCompleted: {
  console.log(App.foo);
}

The error I get is

ReferenceError: App is not defined

Fair enough. Does anyone know how I can import the singleton?

My current work around is to inject it into the root context in my main.cpp:

App smvApp;
engine.rootContext()->setContextProperty("App", &smvApp);

[smac89]

Ok my mistake, I should have read this page more carefully. qt_add_qml_module is only available from QT6.2, while I'm on Qt5.

The correct way to register singletons in QT5 is to use the qmlRegisterSingleInstance function, as shown here.

The other method which makes use of QML_ELEMENT, and QML_SINGLETON, are only available from Qt6

[smac89]

If anyone has an answer for Qt6, please feel free to share, for others who may have the same question.