rust/tests/ui/unop-move-semantics.rs

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// Test that move restrictions are enforced on overloaded unary operations
use std::ops::Not;
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fn move_then_borrow<T: Not<Output=T> + Clone>(x: T) {
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!x;
x.clone(); //~ ERROR: borrow of moved value
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}
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fn move_borrowed<T: Not<Output=T>>(x: T, mut y: T) {
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let m = &x;
let n = &mut y;
!x; //~ ERROR: cannot move out of `x` because it is borrowed
!y; //~ ERROR: cannot move out of `y` because it is borrowed
use_mut(n); use_imm(m);
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}
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fn illegal_dereference<T: Not<Output=T>>(mut x: T, y: T) {
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let m = &mut x;
let n = &y;
!*m; //~ ERROR: cannot move out of `*m`
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!*n; //~ ERROR: cannot move out of `*n`
use_imm(n); use_mut(m);
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}
fn main() {}
fn use_mut<T>(_: &mut T) { }
fn use_imm<T>(_: &T) { }