rust/tests/ui/closures/2229_closure_analysis/diagnostics/multilevel-path.rs
2023-01-11 09:32:08 +00:00

29 lines
464 B
Rust

// edition:2021
// Test that when a borrow checker diagnostics are emitted, it's as precise
// as the capture by the closure.
#![allow(unused)]
struct Point {
x: i32,
y: i32,
}
struct Wrapper {
p: Point,
}
fn main() {
let mut w = Wrapper { p: Point { x: 10, y: 10 } };
let mut c = || {
w.p.x += 20;
};
let py = &mut w.p.x;
//~^ ERROR: cannot borrow `w.p.x` as mutable more than once at a time
c();
*py = 20
}