macro_rules! try_exit_code {
($e:expr) => { ... };
}
Expand description
Macro to propagate ExitCode
s in the same way as the try!
macro/the ?
operator.
Ideally, we would make ExitCode
implement std::ops::Try
, but that’s a
nightly API. We could also make ExitCode
implement Error
, but this
interacts badly with eyre::Result
, because all Error
s are convertible to
eyre::Error
, so our exit codes get treated at the same as other errors.
So, instead, we have this macro to accomplish the same thing, but for
Result<T, ExitCode>
s specifically.