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
|
// edition:2021
#![feature(rustc_attrs)]
struct Point {
x: i32,
y: i32,
}
fn main() {
let mut p = Point { x: 10, y: 10 };
let c = #[rustc_capture_analysis]
//~^ ERROR: attributes on expressions are experimental
//~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701>
|| {
//~^ First Pass analysis includes:
//~| Min Capture analysis includes:
println!("{}", p.x);
//~^ NOTE: Capturing p[(0, 0)] -> ImmBorrow
//~| NOTE: Min Capture p[(0, 0)] -> ImmBorrow
};
// `c` should only capture `p.x`, therefore mutating `p.y` is allowed.
let py = &mut p.y;
c();
*py = 20;
}
|
