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
|
fn a<'a>() -> &'a [isize] {
let vec = vec![1, 2, 3, 4];
let vec: &[isize] = &vec;
let tail = match vec {
&[_, ref tail @ ..] => tail,
_ => panic!("a")
};
tail //~ ERROR cannot return value referencing local variable `vec`
}
fn b<'a>() -> &'a [isize] {
let vec = vec![1, 2, 3, 4];
let vec: &[isize] = &vec;
let init = match vec {
&[ref init @ .., _] => init,
_ => panic!("b")
};
init //~ ERROR cannot return value referencing local variable `vec`
}
fn c<'a>() -> &'a [isize] {
let vec = vec![1, 2, 3, 4];
let vec: &[isize] = &vec;
let slice = match vec {
&[_, ref slice @ .., _] => slice,
_ => panic!("c")
};
slice //~ ERROR cannot return value referencing local variable `vec`
}
fn main() {}
|
