53 lines
1.8 KiB
Rust
53 lines
1.8 KiB
Rust
// Test basic or-patterns when the target pattern type will be lowered to
|
|
// a `SwitchInt`. This will happen when the target type is an integer.
|
|
|
|
//@ run-pass
|
|
|
|
#[derive(Debug, PartialEq)]
|
|
enum MatchArm {
|
|
Arm(usize),
|
|
Wild,
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
enum Foo {
|
|
One(usize),
|
|
Two(usize, usize),
|
|
}
|
|
|
|
fn test_foo(x: Foo) -> MatchArm {
|
|
match x {
|
|
// normal pattern.
|
|
Foo::One(0) | Foo::One(1) | Foo::One(2) => MatchArm::Arm(0),
|
|
// most simple or-pattern.
|
|
Foo::One(42 | 255) => MatchArm::Arm(1),
|
|
// multiple or-patterns for one structure.
|
|
Foo::Two(42 | 255, 1024 | 2048) => MatchArm::Arm(2),
|
|
// mix of pattern types in one or-pattern (range).
|
|
Foo::One(100 | 110..=120 | 210..=220) => MatchArm::Arm(3),
|
|
// multiple or-patterns with wild.
|
|
Foo::Two(0..=10 | 100..=110, 0 | _) => MatchArm::Arm(4),
|
|
// wild
|
|
_ => MatchArm::Wild,
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
// `Foo` tests.
|
|
assert_eq!(test_foo(Foo::One(0)), MatchArm::Arm(0));
|
|
assert_eq!(test_foo(Foo::One(42)), MatchArm::Arm(1));
|
|
assert_eq!(test_foo(Foo::One(43)), MatchArm::Wild);
|
|
assert_eq!(test_foo(Foo::One(255)), MatchArm::Arm(1));
|
|
assert_eq!(test_foo(Foo::One(256)), MatchArm::Wild);
|
|
assert_eq!(test_foo(Foo::Two(42, 1023)), MatchArm::Wild);
|
|
assert_eq!(test_foo(Foo::Two(255, 2048)), MatchArm::Arm(2));
|
|
assert_eq!(test_foo(Foo::One(100)), MatchArm::Arm(3));
|
|
assert_eq!(test_foo(Foo::One(115)), MatchArm::Arm(3));
|
|
assert_eq!(test_foo(Foo::One(105)), MatchArm::Wild);
|
|
assert_eq!(test_foo(Foo::One(215)), MatchArm::Arm(3));
|
|
assert_eq!(test_foo(Foo::One(121)), MatchArm::Wild);
|
|
assert_eq!(test_foo(Foo::Two(0, 42)), MatchArm::Arm(4));
|
|
assert_eq!(test_foo(Foo::Two(100, 0)), MatchArm::Arm(4));
|
|
assert_eq!(test_foo(Foo::Two(42, 0)), MatchArm::Wild);
|
|
}
|