rust/tests/ui/nll/closure-malformed-projection-input-issue-102800.rs
2024-02-16 20:02:50 +00:00

22 lines
589 B
Rust

// Regression test for #102800
//
// Here we are generating higher-ranked region constraints when normalizing and relating closure
// input types. Previously this was an ICE in the error path because we didn't register enough
// diagnostic information to render the higher-ranked subtyping error.
//@ check-fail
trait Trait {
type Ty;
}
impl Trait for &'static () {
type Ty = ();
}
fn main() {
let _: for<'a> fn(<&'a () as Trait>::Ty) = |_| {};
//~^ ERROR implementation of `Trait` is not general enough
//~| ERROR implementation of `Trait` is not general enough
}