Merge tag 'debian/1.52.1+dfsg1-1_exp2' into proxmox/buster

[rustc.git] / src / test / ui / pattern / usefulness / issue-72377.rs

diff --git a/src/test/ui/pattern/usefulness/issue-72377.rs b/src/test/ui/pattern/usefulness/issue-72377.rs
new file mode 100644 (file)
index 0000000..b0d8a53
--- /dev/null
+++ b/src/test/ui/pattern/usefulness/issue-72377.rs
@@ -0,0 +1,17 @@
+#[derive(PartialEq, Eq)]
+enum X { A, B, C, }
+
+fn main() {
+    let x = X::A;
+    let y = Some(X::A);
+
+    match (x, y) {
+        //~^ ERROR non-exhaustive patterns: `(A, Some(A))`, `(A, Some(B))`, `(B, Some(B))` and 2
+        //~| more not covered
+        (_, None) => false,
+        (v, Some(w)) if v == w => true,
+        (X::B, Some(X::C)) => false,
+        (X::B, Some(X::A)) => false,
+        (X::A, Some(X::C)) | (X::C, Some(X::A)) => false,
+    };
+}