1 files changed, 39 insertions, 0 deletions
diff --git a/tests/ui/or-patterns/consistent-bindings.rs b/tests/ui/or-patterns/consistent-bindings.rs
new file mode 100644
index 00000000000..ecae1d8a273
--- /dev/null
+++ b/tests/ui/or-patterns/consistent-bindings.rs
@@ -0,0 +1,39 @@
+// Check that or-patterns with consistent bindings across arms are allowed.
+
+// edition:2018
+
+// check-pass
+
+fn main() {
+    // One level:
+    let (Ok(a) | Err(a)) = Ok(0);
+    let (Ok(ref a) | Err(ref a)) = Ok(0);
+    let (Ok(ref mut a) | Err(ref mut a)) = Ok(0);
+
+    // Two levels:
+    enum Tri<S, T, U> {
+        V1(S),
+        V2(T),
+        V3(U),
+    }
+    use Tri::*;
+
+    let (Ok((V1(a) | V2(a) | V3(a), b)) | Err(Ok((a, b)) | Err((a, b)))): Result<_, Result<_, _>> =
+        Ok((V1(1), 1));
+
+    let (Ok((V1(a) | V2(a) | V3(a), ref b)) | Err(Ok((a, ref b)) | Err((a, ref b)))): Result<
+        _,
+        Result<_, _>,
+    > = Ok((V1(1), 1));
+
+    // Three levels:
+    let (
+        a,
+        Err((ref mut b, ref c, d))
+        | Ok((
+            Ok(V1((ref c, d)) | V2((d, ref c)) | V3((ref c, Ok((_, d)) | Err((d, _)))))
+            | Err((ref c, d)),
+            ref mut b,
+        )),
+    ): (_, Result<_, _>) = (1, Ok((Ok(V3((1, Ok::<_, (i32, i32)>((1, 1))))), 1)));
+}