Cusom widget crash every time on setGeometry()

[akontsevich]

Created custom widget like this:

class DeclarativeMyWidgetExtension : public DeclarativeWidgetExtension
{
    Q_OBJECT

public:
    // Repeat property declarations, qmlRegisterExtendedType doesn't see the ones from
    // base class
    Q_PROPERTY(QQmlListProperty<QObject> data READ data DESIGNABLE false CONSTANT)
    Q_PROPERTY(int x READ x WRITE setX NOTIFY posChanged)
    Q_PROPERTY(int y READ y WRITE setY NOTIFY posChanged)
    Q_PROPERTY(int width READ width WRITE setWidth NOTIFY sizeChanged)
    Q_PROPERTY(int height READ height WRITE setHeight NOTIFY sizeChanged)
    Q_PROPERTY(QRect geometry READ geometry WRITE setGeometry NOTIFY geometryChanged)
    Q_PROPERTY(DeclarativeSizePolicy *sizePolicy READ sizePolicy CONSTANT)

}

In QML:

        MyWidget {
            x: 0
            y: 0
            width: parentItem.width
            height: parentItem.height
        }

However it crashes on this line: https://github.com/KDAB/DeclarativeWidgets/blob/master/src/declarativewidgetextension.cpp#L160 or this: https://github.com/KDAB/DeclarativeWidgets/blob/master/src/declarativewidgetextension.cpp#L177

If width or height are fixed - no crash.

Also can't add

  Q_PROPERTY(bool visible READ isVisible WRITE setVisible NOTIFY visibleChanged)

property, getting build error:

moc_DeclarativeMyWidgetExtension.cpp: In function ‘void checkNotifySignalValidity_DeclarativeMyWidgetExtension(DeclarativeMyWidgetExtension*)’:
moc_DeclarativeMyWidgetExtension.cpp:232:23: error: no matching function for call to ‘DeclarativeMyWidgetExtension::visibleChanged()’
  232 |     t->visibleChanged();
      |                       ^
In file included from ../DeclarativeMyWidgetExtension.h:4,
                 from moc_DeclarativeMyWidgetExtension.cpp:9:
/src/declarativewidgetextension.h:96:10: note: candidate: ‘void DeclarativeWidgetExtension::visibleChanged(bool)’
   96 |     void visibleChanged(bool visible);
      |          ^~~~~~~~~~~~~~
/src/declarativewidgetextension.h:96:10: note:   candidate expects 1 argument, 0 provided
make: *** [Makefile:378283: moc_DeclarativeMyWidgetExtension.o] Error 1