Macro uucore::crash_if_err

macro_rules! crash_if_err {
    ($exit_code:expr, $exp:expr) => { ... };
}

Unwrap a std::result::Result, crashing instead of panicking.

If the result is an Ok-variant, returns the value contained inside. If it is an Err-variant, invokes crash! with the formatted error instead.

Examples

let is_ok: Result<u32, &str> = Ok(1);
// Does nothing
crash_if_err!(1, is_ok);

let is_err: Result<u32, &str> = Err("This didn't work...");
// Calls `crash!`
crash_if_err!(1, is_err);