In addition to what Ygg2 mentioned (tests and unwrap_or), Rust is still (slowly) moving towards support of `Never` type that auto-erases impossible branches. Wi

In addition to what Ygg2 mentioned (tests and unwrap_or), Rust is still (slowly) moving towards support of `Never` type that auto-erases impossible branches. Without `Never`, if you statically know that your function always returns `Option::Some`/`Result::Ok`, you have to use `.unwrap()` or `.expect("reason")`. This is just you doing the obvious work for the compiler that's not smart enough yet to figure it out by itself.