rust/tests/ui/wf/wf-normalization-sized.rs
2024-02-16 20:02:50 +00:00

20 lines
524 B
Rust

//@ check-pass
//@ known-bug: #100041
// Should fail. Normalization can bypass well-formedness checking.
// `[[[[[[u8]]]]]]` is not a well-formed type since size of type `[u8]` cannot
// be known at compile time (since `Sized` is not implemented for `[u8]`).
trait WellUnformed {
type RequestNormalize;
}
impl<T: ?Sized> WellUnformed for T {
type RequestNormalize = ();
}
const _: <[[[[[[u8]]]]]] as WellUnformed>::RequestNormalize = ();
const _: <Vec<str> as WellUnformed>::RequestNormalize = ();
fn main() {}