diff options
Diffstat (limited to 'tests/ui/closures/2229_closure_analysis/multilevel-path-2.rs')
-rw-r--r-- | tests/ui/closures/2229_closure_analysis/multilevel-path-2.rs | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/tests/ui/closures/2229_closure_analysis/multilevel-path-2.rs b/tests/ui/closures/2229_closure_analysis/multilevel-path-2.rs new file mode 100644 index 000000000..e21fe318c --- /dev/null +++ b/tests/ui/closures/2229_closure_analysis/multilevel-path-2.rs @@ -0,0 +1,33 @@ +// edition:2021 + +#![feature(rustc_attrs)] +#![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 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: + println!("{}", w.p.x); + //~^ NOTE: Capturing w[(0, 0),(0, 0)] -> ImmBorrow + //~| NOTE: Min Capture w[(0, 0),(0, 0)] -> ImmBorrow + }; + + // `c` only captures `w.p.x`, therefore it's safe to mutate `w.p.y`. + let py = &mut w.p.y; + c(); + + *py = 20 +} |