File: eval-bad-signature.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg2-3
  • links: PTS, VCS
  • area: main
  • in suites: trixie
  • size: 893,176 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; lisp: 29; perl: 29; ruby: 19; sql: 11
file content (27 lines) | stat: -rw-r--r-- 491 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
24
25
26
27
 
// Make sure we don't ICE when evaluating a trait whose impl has a bad signature.

#![feature(const_trait_impl)]

#[const_trait]
trait Value {
    fn value() -> u32;
}

const fn get_value<T: ~const Value>() -> u32 {
    T::value()
}

struct FortyTwo;

impl const Value for FortyTwo {
    fn value() -> i64 {
        //~^ ERROR method `value` has an incompatible type for trait
        42
    }
}

const FORTY_TWO: u32 = get_value::<FortyTwo>();

fn main() {
    assert_eq!(FORTY_TWO, 42);
}