Macro rpg::vec_enum

macro_rules! vec_enum {
    (
        $(#[$enum_attr:meta])*
        pub enum $name:ident {
            $($variant:ident),*
        }
    ) => { ... };
    (
        $(#[$enum_attr:meta])*
        enum $name:ident {
            $($variant:ident),*
        }
    ) => { ... };
}