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
|
//@ run-pass
fn main() {
#[allow(dead_code)]
enum MyEnum {
A(String),
B { f: String },
C,
}
// ref binding to non-copy value and or-pattern
let (MyEnum::A(ref x) | MyEnum::B { f: ref x }) = (MyEnum::B { f: String::new() }) else {
panic!();
};
assert_eq!(x, "");
// nested let-else
let mut x = 1;
loop {
let 4 = x else {
let 3 = x else {
x += 1;
continue;
};
break;
};
panic!();
}
assert_eq!(x, 3);
// else return
let Some(1) = Some(2) else { return };
panic!();
}
|
