src/checks/level1/README-child-event-qobject-cast.md


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# child-event-qobject-cast

Finds places where `qobject_cast<MyType>(event->child())` is being used inside `QObject::childEvent()` or equivalent (`QObject::event()` or `QObject::eventFilter()`).


`qobject_cast` can fail because the child might not be totally constructed yet.