In rust, you write "f(g()?)", and make sure that your function body returns a Result<> with an error type that g()'s error type can be converted to.

It works great. Also, note that f() doesn't care about the type of error returned by g(), and that it will be a compilation error if g()'s error type turns into something incompatible.

Sadly, there are proposals to add exceptions to rust, and it seems likely they will be accepted, breaking error handling semantics across the entire ecosystem (even in new code, since exceptions are too hard to use correctly).