alt Hacker NewsThat prevents other control flow mechanisms (return, break) from operating past the function boundary. In general, I avoid single-callsite functions as much as possible (including the iterator api) for this reason.
That prevents other control flow mechanisms (return, break) from operating past the function boundary. In general, I avoid single-callsite functions as much as possible (including the iterator api) for this reason.
It sounds like you're fighting the language - Rust is sort of FP-light and you're encouraged to return a null/error value from the intermediate calculation instead of doing an early return from the outer scope. It's a nice and easy to follow way to structure the code IME. Yes, it's more verbose when an early return would have been just right - so be it.