mirror of https://github.com/rust-lang/rust
49 lines
1.8 KiB
Rust
49 lines
1.8 KiB
Rust
fn main() {}
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struct U;
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fn slice() {
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let mut arr = [U, U, U, U, U];
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let hold_all = &arr;
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let [ref _x0_hold, _x1, ref xs_hold @ ..] = arr; //~ ERROR cannot move out of `arr[..]`
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_x1 = U; //~ ERROR cannot assign twice to immutable variable `_x1`
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drop(hold_all);
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let [_x0, ..] = arr; //~ ERROR cannot move out of `arr[..]`
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drop(_x0_hold);
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let [_, _, ref mut _x2, _x3, mut _x4] = arr;
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//~^ ERROR cannot borrow `arr[..]` as mutable
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//~| ERROR cannot move out of `arr[..]` because it is borrowed
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//~| ERROR cannot move out of `arr[..]` because it is borrowed
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drop(xs_hold);
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}
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fn tuple() {
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let mut tup = (U, U, U, U);
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let (ref _x0, _x1, ref _x2, ..) = tup;
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_x1 = U; //~ ERROR cannot assign twice to immutable variable
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let _x0_hold = &mut tup.0; //~ ERROR cannot borrow `tup.0` as mutable because it is also
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let (ref mut _x0_hold, ..) = tup; //~ ERROR cannot borrow `tup.0` as mutable because it is also
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*_x0 = U; //~ ERROR cannot assign to `*_x0`, which is behind a `&` reference
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*_x2 = U; //~ ERROR cannot assign to `*_x2`, which is behind a `&` reference
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drop(tup.1); //~ ERROR use of moved value: `tup.1`
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let _x1_hold = &tup.1; //~ ERROR borrow of moved value: `tup.1`
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let (.., ref mut _x3) = tup;
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let _x3_hold = &tup.3; //~ ERROR cannot borrow `tup.3` as immutable
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let _x3_hold = &mut tup.3; //~ ERROR cannot borrow `tup.3` as mutable more
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let (.., ref mut _x4_hold) = tup; //~ ERROR cannot borrow `tup.3` as mutable more
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let (.., ref _x4_hold) = tup; //~ ERROR cannot borrow `tup.3` as immutable
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drop(_x3);
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}
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fn closure() {
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let mut tup = (U, U, U);
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let c1 = || {
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let (ref _x0, _x1, _) = tup;
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};
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let c2 = || {
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//~^ ERROR use of moved value
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let (ref mut _x0, _, _x2) = tup;
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};
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drop(c1);
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}
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