Enumerations in uncreatable types with lowercase name

beecksche

Hi,
i'm not able to acces my enumerations of an uncreatable type if the name is lowercase.

myclass.h

class MyClass {
 Q_GADGET
public:
 enum MyEnum { Value1, Value2 };
 Q_ENUM(MyEnum)
}

main.cpp

int main(int argc, char *argv[])
{
 qRegisterUncreatableType<MyClass>("my.company", 1, 0, "MyClass"); // qt.qml.typeregistration: Invalid QML element name "MyClass"; value type names should begin with a lowercase letter
 qRegisterUncreatableType<MyClass>("my.company", 1, 0, "myClass");

 QQmlApplicationEngine engine;
 engine.load(QUrl(QLatin1String("qrc:/main.qml")));
}

main.qml

import QtQuick 2.15
import QtQuick.Window 2.15
import QtQuick.Controls 2.15

import my.company1.0

ApplicationWindow {
    Component.onCompleted: {
        console.log(MyClass.Value1) // works
        console.log(myClass.Value1) // ReferenceError: myClass is not defined
    }
}

GrecKo

This is a bit awkward for the moment and I'm not convinced by the way it should be done currently.
You can add pragma ValueTypeBehavior: Addressable at the top of a QML file to be able to refer to value types and then your latter snippet would work.
For reference (the last comment by Ulf): https://bugreports.qt.io/browse/QTBUG-88008?focusedId=712036&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-712036

beecksche

@GrecKo said in Enumerations in uncreatable types with lowercase name:

pragma ValueTypeBehavior: Addressable

leads to

error: Unknown value type behavior 'Addressable' in pragma

I'm working with Qt6.5: only Copy and Reference values for the ValueTypeBehavior pragma are experimental options. And both do not work.

GrecKo

This pragma was added in Qt 6.6 : https://doc.qt.io/qt-6/qtqml-documents-definetypes.html#valuetypebehavior