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