File: issue-9951.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg3-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, sid, trixie
  • size: 893,396 kB
  • sloc: xml: 158,127; python: 35,830; javascript: 19,497; cpp: 19,002; sh: 17,245; ansic: 13,127; asm: 4,376; makefile: 1,051; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (20 lines) | stat: -rw-r--r-- 452 bytes parent folder | download | duplicates (3) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
//@ run-pass

#![allow(unused_variables)]

trait Bar {
  fn noop(&self); //~ WARN method `noop` is never used
}
impl Bar for u8 {
  fn noop(&self) {}
}

fn main() {
    let (a, b) = (&5u8 as &dyn Bar, &9u8 as &dyn Bar);
    let (c, d): (&dyn Bar, &dyn Bar) = (a, b);

    let (a, b) = (Box::new(5u8) as Box<dyn Bar>, Box::new(9u8) as Box<dyn Bar>);
    let (c, d): (&dyn Bar, &dyn Bar) = (&*a, &*b);

    let (c, d): (&dyn Bar, &dyn Bar) = (&5, &9);
}