Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 51 insertions, 0 deletions

diff --git a/tests/ui/or-patterns/slice-patterns.rs b/tests/ui/or-patterns/slice-patterns.rs
new file mode 100644
index 000000000..ed5eace0b
--- /dev/null
+++ b/tests/ui/or-patterns/slice-patterns.rs
@@ -0,0 +1,51 @@
+// Test or-patterns with slice-patterns
+
+// run-pass
+
+#[derive(Debug, PartialEq)]
+enum MatchArm {
+    Arm(usize),
+    Wild,
+}
+
+#[derive(Debug)]
+enum Test {
+    Foo,
+    Bar,
+    Baz,
+    Qux,
+}
+
+fn test(foo: &[Option<Test>]) -> MatchArm {
+    match foo {
+        [.., Some(Test::Qux | Test::Foo)] => MatchArm::Arm(0),
+        [Some(Test::Foo), .., Some(Test::Baz | Test::Bar)] => MatchArm::Arm(1),
+        [.., Some(Test::Bar | Test::Baz), _] => MatchArm::Arm(2),
+        _ => MatchArm::Wild,
+    }
+}
+
+fn main() {
+    let foo = vec![
+        Some(Test::Foo),
+        Some(Test::Bar),
+        Some(Test::Baz),
+        Some(Test::Qux),
+    ];
+
+    // path 1a
+    assert_eq!(test(&foo), MatchArm::Arm(0));
+    // path 1b
+    assert_eq!(test(&[Some(Test::Bar), Some(Test::Foo)]), MatchArm::Arm(0));
+    // path 2a
+    assert_eq!(test(&foo[..3]), MatchArm::Arm(1));
+    // path 2b
+    assert_eq!(test(&[Some(Test::Foo), Some(Test::Foo), Some(Test::Bar)]), MatchArm::Arm(1));
+    // path 3a
+    assert_eq!(test(&foo[1..3]), MatchArm::Arm(2));
+    // path 3b
+    assert_eq!(test(&[Some(Test::Bar), Some(Test::Baz), Some(Test::Baz), Some(Test::Bar)]),
+        MatchArm::Arm(2));
+    // path 4
+    assert_eq!(test(&foo[4..]), MatchArm::Wild);
+}