83 lines
1.7 KiB
Rust
83 lines
1.7 KiB
Rust
|
// Check that closure captures for slice patterns are inferred correctly
|
||
|
|
|
||
|
|
fn arr_by_ref(mut x: [String; 3]) {
|
||
|
|
let f = || {
|
||
|
|
let [ref y, ref z @ ..] = x;
|
||
|
|
};
|
||
|
|
let r = &mut x;
|
||
|
|
//~^ ERROR cannot borrow
|
||
|
|
f();
|
||
|
|
}
|
||
|
|
|
||
|
|
fn arr_by_mut(mut x: [String; 3]) {
|
||
|
|
let mut f = || {
|
||
|
|
let [ref mut y, ref mut z @ ..] = x;
|
||
|
|
};
|
||
|
|
let r = &x;
|
||
|
|
//~^ ERROR cannot borrow
|
||
|
|
f();
|
||
|
|
}
|
||
|
|
|
||
|
|
fn arr_by_move(x: [String; 3]) {
|
||
|
|
let f = || {
|
||
|
|
let [y, z @ ..] = x;
|
||
|
|
};
|
||
|
|
&x;
|
||
|
|
//~^ ERROR borrow of moved value
|
||
|
|
}
|
||
|
|
|
||
|
|
fn arr_ref_by_ref(x: &mut [String; 3]) {
|
||
|
|
let f = || {
|
||
|
|
let [ref y, ref z @ ..] = *x;
|
||
|
|
};
|
||
|
|
let r = &mut *x;
|
||
|
|
//~^ ERROR cannot borrow
|
||
|
|
f();
|
||
|
|
}
|
||
|
|
|
||
|
|
fn arr_ref_by_uniq(x: &mut [String; 3]) {
|
||
|
|
let mut f = || {
|
||
|
|
let [ref mut y, ref mut z @ ..] = *x;
|
||
|
|
};
|
||
|
|
let r = &x;
|
||
|
|
//~^ ERROR cannot borrow
|
||
|
|
f();
|
||
|
|
}
|
||
|
|
|
||
|
|
fn arr_box_by_move(x: Box<[String; 3]>) {
|
||
|
|
let f = || {
|
||
|
|
let [y, z @ ..] = *x;
|
||
|
|
};
|
||
|
|
&x;
|
||
|
|
//~^ ERROR borrow of moved value
|
||
|
|
}
|
||
|
|
|
||
|
|
fn slice_by_ref(x: &mut [String]) {
|
||
|
|
let f = || {
|
||
|
|
if let [ref y, ref z @ ..] = *x {}
|
||
|
|
};
|
||
|
|
let r = &mut *x;
|
||
|
|
//~^ ERROR cannot borrow
|
||
|
|
f();
|
||
|
|
}
|
||
|
|
|
||
|
|
fn slice_by_uniq(x: &mut [String]) {
|
||
|
|
let mut f = || {
|
||
|
|
if let [ref mut y, ref mut z @ ..] = *x {}
|
||
|
|
};
|
||
|
|
let r = &x;
|
||
|
|
//~^ ERROR cannot borrow
|
||
|
|
f();
|
||
|
|
}
|
||
|
|
|
||
|
|
fn main() {
|
||
|
|
arr_by_ref(Default::default());
|
||
|
|
arr_by_mut(Default::default());
|
||
|
|
arr_by_move(Default::default());
|
||
|
|
arr_ref_by_ref(&mut Default::default());
|
||
|
|
arr_ref_by_uniq(&mut Default::default());
|
||
|
|
arr_box_by_move(Default::default());
|
||
|
|
slice_by_ref(&mut <[_; 3]>::default());
|
||
|
|
slice_by_uniq(&mut <[_; 3]>::default());
|
||
|
|
}
|