[zozbot234]

You can most likely use session types to soundly observe a partially initialized MaybeUninit<MyObject> in Rust. The proper use of session types could ensure that the object is only assumed to be initialized after every field of it has been written to, and that no uninitialized fields are ever accessed in an unsound way. The issue though is that this is not automated in any way, it requires you to write custom code for each case of partial initialization you might be dealing with.