sercon/sercon-backends/src/backends.rs

macro_rules! backends {
    ($($name:ident),* $(,)?) => ($(
        mod $name;
        pub use self::$name::*;
    )*)
}

macro_rules! impl_filetype_backend {
    ($type:ty, [$($ft:expr),* $(,)?]) => (
        impl crate::FiletypeBackend for $type {
            fn supported_filetypes(&self) -> Vec<String> {
                vec![$(String::from($ft)),*]
            }

            fn as_backend(&self) -> &dyn Backend { self }
        }
    )
}

backends![bincode, cbor, json, nbt, ron, s_expression, toml, xml, yaml,];