Macro dynerr::dynerr

macro_rules! dynerr {
    ($e:expr) => { ... };
}

A macro for returning custom errors as DynError.

Example

fn example(x: u32) -> DynResult<u32> {
    match x {
        1      => Ok(x),                                //Ok
        2..=4  => dynerr!(ExampleError1::ThisError(x)), //custom error
        5..=10 => dynerr!(ExampleError2::ThatError(x)), //different custom error
        _      => {
            std::fs::File::open("none")?;               //an error not even defined by you!
            Ok(x)
        }
    }
}