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// Check that or-patterns with consistent bindings across arms are allowed.
// edition:2018
// check-pass
#![feature(or_patterns)]
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)));
}
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