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|
// edition:2021
// Tests that in cases where we individually capture all the fields of a type,
// we still drop them in the order they would have been dropped in the 2018 edition.
// NOTE: It is *critical* that the order of the min capture NOTES in the stderr output
// does *not* change!
#![feature(rustc_attrs)]
#[derive(Debug)]
struct HasDrop;
impl Drop for HasDrop {
fn drop(&mut self) {
println!("dropped");
}
}
fn test_one() {
let a = (HasDrop, HasDrop);
let b = (HasDrop, HasDrop);
let c = #[rustc_capture_analysis]
//~^ ERROR: attributes on expressions are experimental
//~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701>
|| {
//~^ ERROR: Min Capture analysis includes:
//~| ERROR
println!("{:?}", a.0);
//~^ NOTE: Min Capture a[(0, 0)] -> ImmBorrow
//~| NOTE
println!("{:?}", a.1);
//~^ NOTE: Min Capture a[(1, 0)] -> ImmBorrow
//~| NOTE
println!("{:?}", b.0);
//~^ NOTE: Min Capture b[(0, 0)] -> ImmBorrow
//~| NOTE
println!("{:?}", b.1);
//~^ NOTE: Min Capture b[(1, 0)] -> ImmBorrow
//~| NOTE
};
}
fn test_two() {
let a = (HasDrop, HasDrop);
let b = (HasDrop, HasDrop);
let c = #[rustc_capture_analysis]
//~^ ERROR: attributes on expressions are experimental
//~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701>
|| {
//~^ ERROR: Min Capture analysis includes:
//~| ERROR
println!("{:?}", a.1);
//~^ NOTE: Min Capture a[(1, 0)] -> ImmBorrow
//~| NOTE
println!("{:?}", a.0);
//~^ NOTE: Min Capture a[(0, 0)] -> ImmBorrow
//~| NOTE
println!("{:?}", b.1);
//~^ NOTE: Min Capture b[(1, 0)] -> ImmBorrow
//~| NOTE
println!("{:?}", b.0);
//~^ NOTE: Min Capture b[(0, 0)] -> ImmBorrow
//~| NOTE
};
}
fn test_three() {
let a = (HasDrop, HasDrop);
let b = (HasDrop, HasDrop);
let c = #[rustc_capture_analysis]
//~^ ERROR: attributes on expressions are experimental
//~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701>
|| {
//~^ ERROR: Min Capture analysis includes:
//~| ERROR
println!("{:?}", b.1);
//~^ NOTE: Min Capture b[(1, 0)] -> ImmBorrow
//~| NOTE
println!("{:?}", a.1);
//~^ NOTE: Min Capture a[(1, 0)] -> ImmBorrow
//~| NOTE
println!("{:?}", a.0);
//~^ NOTE: Min Capture a[(0, 0)] -> ImmBorrow
//~| NOTE
println!("{:?}", b.0);
//~^ NOTE: Min Capture b[(0, 0)] -> ImmBorrow
//~| NOTE
};
}
fn main() {
test_one();
test_two();
test_three();
}
|
