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//@ 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>
//~| NOTE: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|| {
//~^ First Pass analysis includes:
//~| Min Capture analysis includes:
println!("{}", t.0);
//~^ NOTE: Capturing t[(0, 0)] -> Immutable
//~| NOTE: Min Capture t[(0, 0)] -> Immutable
};
// `c` only captures t.0, therefore mutating t.1 is allowed.
let t1 = &mut t.1;
c();
*t1 = 20;
}
|
