Trait libhelium::subclass::prelude::IsSubclassableExt   
[−]pub trait IsSubclassableExt: IsClass + ParentClassIs {
    fn parent_class_init<T>(class: &mut Class<Self>)
    where
        T: ObjectSubclass,
        Self::Parent: IsSubclassable<T>;
    fn parent_instance_init<T>(instance: &mut InitializingObject<T>)
    where
        T: ObjectSubclass,
        Self::Parent: IsSubclassable<T>;
}