| // NB: If you change this test, change 'marker_trait_attr-feature-gate.rs' at the same time. |
| |
| // marker_trait_attr |
| // Tracking issue: https://github.com/rust-lang/rust/issues/29864 |
| #![feature(marker_trait_attr)] |
| |
| // See https://github.com/taiki-e/pin-project/issues/105#issuecomment-535355974 |
| |
| use pin_project::pin_project; |
| use std::marker::PhantomPinned; |
| |
| #[pin_project] //~ ERROR E0119 |
| struct Struct<T> { |
| #[pin] |
| x: T, |
| } |
| |
| // unsound Unpin impl |
| impl<T> Unpin for Struct<T> {} |
| |
| fn is_unpin<T: Unpin>() {} |
| |
| fn main() { |
| is_unpin::<Struct<PhantomPinned>>() |
| } |