52 lines
1.2 KiB
Rust
52 lines
1.2 KiB
Rust
//@ 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>
|
|
//~| NOTE: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
|| {
|
|
//~^ 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
|
|
};
|
|
}
|