use

The use declaration can be used so manual scoping isn’t needed:

  1. // An attribute to hide warnings for unused code.
  2. #![allow(dead_code)]
  4. enum Status {
  5.     Rich,
  6.     Poor,
  7. }
  9. enum Work {
  10.     Civilian,
  11.     Soldier,
  12. }
  14. fn main() {
  15.     // Explicitly `use` each name so they are available without
  16.     // manual scoping.
  17.     use Status::{Poor, Rich};
  18.     // Automatically `use` each name inside `Work`.
  19.     use Work::*;
  21.     // Equivalent to `Status::Poor`.
  22.     let status = Poor;
  23.     // Equivalent to `Work::Civilian`.
  24.     let work = Civilian;
  26.     match status {
  27.         // Note the lack of scoping because of the explicit `use` above.
  28.         Rich => println!("The rich have lots of money!"),
  29.         Poor => println!("The poor have no money..."),
  30.     }
  32.     match work {
  33.         // Note again the lack of scoping.
  34.         Civilian => println!("Civilians work!"),
  35.         Soldier  => println!("Soldiers fight!"),
  36.     }
  37. }

See also:

match and use