unnecessary .. binding in struct

[oli-obk]

Even though all fields of a struct are matched explicitly, it's still allowed to add a .. pattern. This can improve forward compatibility, but I think it's equivalent to having a wildcard pattern after matching all enum variants explicitly (which is forbidden in Rust).

struct A {
    a: i32,
    b: i64,
    c: &'static str,
}

fn main() {
    match unimplemented!() {
        A { a: 5, b: 6, c: "", .. } => {}
        _ => {},
    }
}