32 lines
803 B
Rust
32 lines
803 B
Rust
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() {}
|