Macro dep_obj::DepType

macro_rules! DepType {
    (
        ()
        $vis:vis enum $name:ident $($body:tt)*
    ) => { ... };
    (
        ()
        $vis:vis struct $name:ident $($body:tt)*
    ) => { ... };
    (
        @impl [$name:ident]
    ) => { ... };
}