| //@ revisions: e2021 e2024 |
| //@[e2021] edition: 2021 |
| //@[e2021] run-rustfix |
| //@[e2024] edition: 2024 |
| //@[e2024] compile-flags: -Zunstable-options |
| //@[e2024] check-pass |
| |
| #![deny(rust_2024_prelude_collisions)] |
| trait Meow { |
| fn poll(&self) {} |
| } |
| impl<T> Meow for T {} |
| fn main() { |
| // This is a deliberate false positive. |
| // While `()` does not implement `Future` and can therefore not be ambiguous, we |
| // do not check that in the lint, as that introduces additional complexities. |
| // Just checking whether the self type is `Pin<&mut _>` is enough. |
| Meow::poll(&core::pin::pin!(())); |
| //[e2021]~^ ERROR trait method `poll` will become ambiguous in Rust 2024 |
| //[e2021]~| WARN this is accepted in the current edition (Rust 2021) but is a hard error in Rust 2024! |
| } |
