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|
// edition:2021
#![feature(rustc_attrs)]
#![allow(unused)]
#[derive(Debug)]
struct Point {
x: i32,
y: i32,
}
#[derive(Debug)]
struct Line {
p: Point,
q: Point
}
#[derive(Debug)]
struct Plane {
a: Line,
b: Line,
}
fn main() {
let mut p = Plane {
a: Line {
p: Point { x: 1,y: 2 },
q: Point { x: 3,y: 4 },
},
b: Line {
p: Point { x: 1,y: 2 },
q: Point { x: 3,y: 4 },
}
};
let c = #[rustc_capture_analysis]
//~^ ERROR: attributes on expressions are experimental
//~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701>
|| {
//~^ ERROR: First Pass analysis includes:
//~| ERROR: Min Capture analysis includes:
let x = &p.a.p.x;
//~^ NOTE: Capturing p[(0, 0),(0, 0),(0, 0)] -> ImmBorrow
p.b.q.y = 9;
//~^ NOTE: Capturing p[(1, 0),(1, 0),(1, 0)] -> MutBorrow
//~| NOTE: p[] captured as MutBorrow here
println!("{:?}", p);
//~^ NOTE: Capturing p[] -> ImmBorrow
//~| NOTE: Min Capture p[] -> MutBorrow
//~| NOTE: p[] used here
};
}
|
