1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
|
// Issue 61188 pointed out a case where we hit an ICE during code gen:
// the compiler assumed that `PartialEq` was always implemented on any
// use of a `const` item in a pattern context, but the pre-existing
// structural-match checking was too shallow
// (see rust-lang/rust#62307), and so we hit cases where we were
// trying to dispatch to `PartialEq` on types that did not implement
// that trait.
struct B(i32);
const A: &[B] = &[];
pub fn main() {
match &[][..] {
A => (),
//~^ ERROR must be annotated with `#[derive(PartialEq)]`
_ => (),
}
}
|
