Macro quicli::prelude::bail []

macro_rules! bail {
    ( $ e : expr ) => { ... };
    (
$ fmt : expr , $ ( $ arg : tt ) + ) => { ... };
}

Exits a function early with an Error.

The bail! macro provides an easy way to exit a function. bail!(X) is equivalent to writing:

Be careful when using this code, it's not being tested!
return Err(format_err!(X))