The Rust Result type with accompanying `?` operator and the `Try*` traits are how you implement exceptions correctly. It makes it easy to model the error domain

The Rust Result type with accompanying `?` operator and the `Try*` traits are how you implement exceptions correctly. It makes it easy to model the error domain once in your trait implementations and then the `?` does the rest of the work. You could imagine something similar with Exceptions where there is simple and ergonomic way to rethrow the exception into your own error domain with little to no extra work on the part of the developer.