File: into-future-not-into-future.e2021.fixed

package info (click to toggle)
rustc 1.89.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 906,624 kB
  • sloc: xml: 158,148; python: 34,888; javascript: 19,595; sh: 19,221; ansic: 13,046; cpp: 7,144; asm: 4,376; makefile: 692; lisp: 174; sql: 15
file content (22 lines) | stat: -rw-r--r-- 685 bytes parent folder | download | duplicates (15)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
//@ revisions: e2021 e2024
//@[e2021] edition: 2021
//@[e2021] run-rustfix
//@[e2024] edition: 2024
//@[e2024] check-pass

#![deny(rust_2024_prelude_collisions)]
trait Meow {
    fn into_future(&self) {}
}
impl Meow for Cat {}

struct Cat;

fn main() {
    // This is a false positive, but it should be rare enough to not matter, and checking whether
    // it implements the trait can have other nontrivial consequences, so it was decided to accept
    // this.
    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!
}