/
empty-struct-braces-pat-1.rs
44 lines (37 loc) · 1.22 KB
/
empty-struct-braces-pat-1.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
40
41
42
43
44
// 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 constant pattern
// aux-build:empty-struct.rs
extern crate empty_struct;
use empty_struct::*;
struct Empty1 {}
enum E {
Empty3 {}
}
fn main() {
let e1 = Empty1 {};
let e3 = E::Empty3 {};
let xe1 = XEmpty1 {};
let xe3 = XE::XEmpty3 {};
match e1 {
Empty1 => () // Not an error, `Empty1` is interpreted as a new binding
}
match e3 {
E::Empty3 => ()
//~^ ERROR expected unit struct/variant or constant, found struct variant `E::Empty3`
}
match xe1 {
XEmpty1 => () // Not an error, `XEmpty1` is interpreted as a new binding
}
match xe3 {
XE::XEmpty3 => ()
//~^ ERROR expected unit struct/variant or constant, found struct variant `XE::XEmpty3`
}
}