Function idioma::exit_if_error

pub fn exit_if_error<O>(result: Result<O, Error>) -> Result<O, Error>

Somethimes you get a Result and you want to continue execution as normal if case it's Ok or exit if it's Err. This function allows you to do precisely that.

It gives you back the Result, but you will only ever be able to actually touch it if you passed in an Ok because exit_if_error will simply terminate on Err. Therefore, you can do something like this:

use idioma::*;
let message = exit_if_error(Ok("hello world")).unwrap();
println!(message);

In this case, the call to unwrap is totally safe. In some cases, compiler will shout at you for doing that, so just give it #[allow(unused)].