Macro require_index_tracking

macro_rules! require_index_tracking {
    ($name: literal, $obs: ident) => { ... };
}

Use in the constructor of your component which requires index tracking of a super::MapObserver. See super::CanTrack for details.

As an example, if you are developing the type MyCustomScheduler<O> which requires novelty tracking, use this in your constructor:

impl<C, O> MyCustomScheduler<C, O>
where
    O: MapObserver,
    C: CanTrack + AsRef<O>,
{
    pub fn new(obs: &C) -> Self {
        require_index_tracking!("MyCustomScheduler", C);
        todo!("Construct your type")
    }
}