src/test/ui/or-patterns/box-patterns.rs

   1 // Test or-patterns with box-patterns
   2
   3 // run-pass
   4
   5 #![feature(box_patterns)]
   6
   7 #[derive(Debug, PartialEq)]
   8 enum MatchArm {
   9     Arm(usize),
  10     Wild,
  11 }
  12
  13 #[derive(Debug)]
  14 enum Test {
  15     Foo,
  16     Bar,
  17     Baz,
  18     Qux,
  19 }
  20
  21 fn test(x: Option<Box<Test>>) -> MatchArm {
  22     match x {
  23         Some(box Test::Foo | box Test::Bar) => MatchArm::Arm(0),
  24         Some(box Test::Baz) => MatchArm::Arm(1),
  25         Some(_) => MatchArm::Arm(2),
  26         _ => MatchArm::Wild,
  27     }
  28 }
  29
  30 fn main() {
  31     assert_eq!(test(Some(Box::new(Test::Foo))), MatchArm::Arm(0));
  32     assert_eq!(test(Some(Box::new(Test::Bar))), MatchArm::Arm(0));
  33     assert_eq!(test(Some(Box::new(Test::Baz))), MatchArm::Arm(1));
  34     assert_eq!(test(Some(Box::new(Test::Qux))), MatchArm::Arm(2));
  35     assert_eq!(test(None), MatchArm::Wild);
  36 }