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
45
46
47
48
49
50
51
52
53
54
55
56
57
|
//@ run-pass
fn tuple() {
let x = (1, 2, 3);
match x {
(1, 2, 4) => unreachable!(),
(0, 2, 3, ..) => unreachable!(),
(0, .., 3) => unreachable!(),
(0, ..) => unreachable!(),
(1, 2, 3) => (),
(_, _, _) => unreachable!(),
}
match x {
(..) => (),
}
match x {
(_, _, _, ..) => (),
}
match x {
(a, b, c) => {
assert_eq!(1, a);
assert_eq!(2, b);
assert_eq!(3, c);
}
}
}
fn tuple_struct() {
struct S(u8, u8, u8);
let x = S(1, 2, 3);
match x {
S(1, 2, 4) => unreachable!(),
S(0, 2, 3, ..) => unreachable!(),
S(0, .., 3) => unreachable!(),
S(0, ..) => unreachable!(),
S(1, 2, 3) => (),
S(_, _, _) => unreachable!(),
}
match x {
S(..) => (),
}
match x {
S(_, _, _, ..) => (),
}
match x {
S(a, b, c) => {
assert_eq!(1, a);
assert_eq!(2, b);
assert_eq!(3, c);
}
}
}
fn main() {
tuple();
tuple_struct();
}
|
