enum_for_matches

enum_for_matches runs a match arm for each enum variant passed into it regardless of type. So, you can make a string out of an enum which wraps numeric types individually, such as serde_value::Value for example. See README.md on GitHub for more information.

For example, this:

enum TestEnum {
    I64(i64),
    U64(u64)
}

let e = TestEnum::I64(80);
let mut s = String::new();

enum_for_matches::run!(e, {TestEnum::I64(i) | TestEnum::U64(i)}, {s = i.to_string();});
eprintln!("{}", &s);

Would expand to:

match e
{
    TestEnum::I64(i) => { s = i.to_string(); }
    TestEnum :: U64(i) => { s = i.to_string(); } 
    _ => { }
}

And print 80.

Contributing

This crate is considered feature complete. It uses a copious amount of .clone()'s, many of which are probably removable. However, since this only runs at compile time, on probably quite small vectors, I couldn't be bothered.