// edition:2021 // Test that we handle derferences properly when only some of the captures are being moved with // `capture_disjoint_fields` enabled. #![feature(rustc_attrs)] #[derive(Debug, Default)] struct SomeLargeType; struct MuchLargerType([SomeLargeType; 32]); // Ensure that we don't capture any derefs when moving captures into the closures, // i.e. only data from the enclosing stack is moved. fn big_box() { let s = MuchLargerType(Default::default()); let b = Box::new(s); let t = (b, 10); 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//~| NOTE: see issue #15701 //~| NOTE: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date || { //~^ First Pass analysis includes: //~| Min Capture analysis includes: let p = t.0.0; //~^ NOTE: Capturing t[(0, 0),Deref,(0, 0)] -> ByValue //~| NOTE: Min Capture t[(0, 0)] -> ByValue println!("{} {:?}", t.1, p); //~^ NOTE: Capturing t[(1, 0)] -> ImmBorrow //~| NOTE: Min Capture t[(1, 0)] -> ImmBorrow }; c(); } fn main() { big_box(); }