3 // Test that `ref` patterns may be used on both sides
4 // of an `@` pattern according to NLL borrowck.
6 #![feature(bindings_after_at)]
7 #![feature(slice_patterns)]
10 struct U; // Not copy!
13 let ref a @ ref b = U;
20 let ref a @ ref b = u();
24 let ref a @ (ref b, [ref c, ref d]) = (u(), [u(), u()]);
25 let _: &(U, [U; 2]) = a;
30 fn f1(ref a @ (ref b, [ref c, ref mid @ .., ref d]): (U, [U; 4])) {}
32 let a @ (b, [c, d]) = &(u(), [u(), u()]);
33 let _: &(U, [U; 2]) = a;
38 let ref a @ &ref b = &u();
43 ref a @ Ok(ref b) | ref a @ Err(ref b) => {
44 let _: &Result<U, U> = a;