pub enum Occur {
Req,
Optional,
Multi,
}Describes how often an option may occur.
impl std::clone::Clone for Occurfn clone(&self) -> Occurimpl std::cmp::Eq for Occur
Prefix searches with a type followed by a colon (e.g.
fn:) to restrict the search to a given type.
Accepted types are: fn, mod,
struct (or str), enum,
trait, typedef (or
tdef).