// 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//~| NOTE: see issue #15701 //~| NOTE: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date || { //~^ ERROR: First Pass analysis includes: //~| ERROR: Min Capture analysis includes: let x = &p.a.p.x; //~^ NOTE: Capturing p[(0, 0),(0, 0),(0, 0)] -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 }; }