src/test/ui/closures/2229_closure_analysis/capture-disjoint-field-tuple.rs


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

// edition:2021

#![feature(rustc_attrs)]

fn main() {
    let mut t = (10, 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!("{}", t.0);
        //~^ NOTE: Capturing t[(0, 0)] -> ImmBorrow
        //~| NOTE: Min Capture t[(0, 0)] -> ImmBorrow
    };

    // `c` only captures t.0, therefore mutating t.1 is allowed.
    let t1 = &mut t.1;

    c();
    *t1 = 20;
}