src/test/compile-fail/empty-struct-braces-pat-2.rs


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39

// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// Can't use empty braced struct as enum pattern

#![feature(braced_empty_structs)]

struct Empty1 {}

enum E {
    Empty2 {}
}

fn main() {
    let e1 = Empty1 {};
    let e2 = E::Empty2 {};

    // Rejected by parser as yet
    // match e1 {
    //     Empty1() => () // ERROR unresolved enum variant, struct or const `Empty1`
    // }
    match e1 {
        Empty1(..) => () //~ ERROR unresolved enum variant, struct or const `Empty1`
    }
    // Issue #28692
    // match e2 {
    //     E::Empty2() => () // ERROR unresolved enum variant, struct or const `Empty2`
    // }
    // match e2 {
    //     E::Empty2(..) => () // ERROR unresolved enum variant, struct or const `Empty2`
    // }
}