Macro error_type::error_type

macro_rules! error_type {
    (
        $(#[$($derive_tts:tt)*])*
        pub enum $err_name:ident {
            $($var_name:ident($var_ty:ty) $var_body:tt),+
            $(,)*
        }
    ) => { ... };
    (
        $(#[$($derive_tts:tt)*])*
        enum $err_name:ident {
            $($var_name:ident($var_ty:ty) $var_body:tt),+
            $(,)*
        }
    ) => { ... };
}

Constructs a reasonably well-featured error type from a concise description.

For details, see the crate documentation.