Macro semantic_registry 

macro_rules! semantic_registry {
    (
        kind = $kind_fn:ident,
        is = $is_fn:ident,
        is_any = $is_any_fn:ident,
        raw = $raw_fn:ident,
        semantic = $semantic_fn:ident,
        registry = $registry:ident,
        type = $kind_ty:ty
    ) => { ... };
}