Function rustc_expand::module::parse_external_mod

pub(crate) fn parse_external_mod(
    sess: &Session, 
    id: Ident, 
    span: Span, 
    unsafety: Unsafe, 
    Directory { ownership: ownership, path: path }: Directory, 
    attrs: &mut Vec<Attribute>, 
    pop_mod_stack: &mut bool
) -> (Mod, Directory)