File: enum-cast.rs

package info (click to toggle)
rustc 1.88.0%2Bdfsg1-2
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, sid
  • size: 934,168 kB
  • sloc: xml: 158,127; python: 36,062; javascript: 19,855; sh: 19,700; cpp: 18,947; ansic: 12,993; asm: 4,792; makefile: 690; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (23 lines) | stat: -rw-r--r-- 409 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
//@ check-pass

// This used to ICE, because the compiler confused a pointer-like to dyn* coercion
// with a c-like enum to integer cast.

#![feature(dyn_star, pointer_like_trait)]
#![expect(incomplete_features)]

use std::marker::PointerLike;

#[repr(transparent)]
enum E {
    Num(usize),
}

impl PointerLike for E {}

trait Trait {}
impl Trait for E {}

fn main() {
    let _ = E::Num(42) as dyn* Trait;
}