mirror of https://github.com/rust-lang/rust
31 lines
769 B
Rust
31 lines
769 B
Rust
//@ edition:2021
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#![feature(rustc_attrs)]
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struct Point {
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x: i32,
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y: i32,
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}
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fn main() {
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let mut p = Point { x: 10, y: 10 };
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let c = #[rustc_capture_analysis]
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//~^ ERROR: attributes on expressions are experimental
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//~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701>
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//~| NOTE: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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|| {
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//~^ First Pass analysis includes:
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//~| Min Capture analysis includes:
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println!("{}", p.x);
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//~^ NOTE: Capturing p[(0, 0)] -> ImmBorrow
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//~| NOTE: Min Capture p[(0, 0)] -> ImmBorrow
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};
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// `c` should only capture `p.x`, therefore mutating `p.y` is allowed.
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let py = &mut p.y;
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c();
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*py = 20;
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}
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