File: issue-44578.rs

package info (click to toggle)
rustc-web 1.70.0%2Bdfsg1-7~deb12u2
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,517,048 kB
  • sloc: xml: 147,962; javascript: 10,210; sh: 8,590; python: 8,220; ansic: 5,901; cpp: 4,635; makefile: 4,006; asm: 2,856
file content (27 lines) | stat: -rw-r--r-- 440 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
21
22
23
24
25
26
27
 
// build-fail

trait Foo {
    const AMT: usize;
}

enum Bar<A, B> {
    First(A),
    Second(B),
}

impl<A: Foo, B: Foo> Foo for Bar<A, B> {
    const AMT: usize = [A::AMT][(A::AMT > B::AMT) as usize]; //~ERROR evaluation of `<Bar<u16, u8> as Foo>::AMT` failed
}

impl Foo for u8 {
    const AMT: usize = 1;
}

impl Foo for u16 {
    const AMT: usize = 2;
}

fn main() {
    println!("{}", <Bar<u16, u8> as Foo>::AMT);
    //~^ constant
}