1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
use std::thread;
fn borrow<T>(_: &T) { }
fn different_vars_after_borrows() {
let x1: Box<_> = Box::new(1);
let p1 = &x1;
let x2: Box<_> = Box::new(2);
let p2 = &x2;
thread::spawn(move|| {
//~^ ERROR cannot move out of `x1` because it is borrowed
//~| ERROR cannot move out of `x2` because it is borrowed
drop(x1);
drop(x2);
});
borrow(&*p1);
borrow(&*p2);
}
fn different_vars_after_moves() {
let x1: Box<_> = Box::new(1);
drop(x1);
let x2: Box<_> = Box::new(2);
drop(x2);
thread::spawn(move|| {
//~^ ERROR use of moved value: `x1`
//~| ERROR use of moved value: `x2`
drop(x1);
drop(x2);
});
}
fn same_var_after_borrow() {
let x: Box<_> = Box::new(1);
let p = &x;
thread::spawn(move|| {
//~^ ERROR cannot move out of `x` because it is borrowed
drop(x);
drop(x); //~ ERROR use of moved value: `x`
});
borrow(&*p);
}
fn same_var_after_move() {
let x: Box<_> = Box::new(1);
drop(x);
thread::spawn(move|| {
//~^ ERROR use of moved value: `x`
drop(x);
drop(x); //~ ERROR use of moved value: `x`
});
}
fn main() {
different_vars_after_borrows();
different_vars_after_moves();
same_var_after_borrow();
same_var_after_move();
}
|
