| //@ 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 into_future(&self) {} |
| } |
| impl Meow for Cat {} |
| |
| struct Cat; |
| |
| impl core::future::IntoFuture for Cat { |
| type Output = (); |
| type IntoFuture = core::future::Ready<()>; |
| |
| fn into_future(self) -> Self::IntoFuture { |
| core::future::ready(()) |
| } |
| } |
| |
| fn main() { |
| Meow::into_future(&Cat); |
| //[e2021]~^ ERROR trait method `into_future` 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! |
| } |
