rust/tests/ui/wf/wf-normalization-sized.rs

27 lines
746 B
Rust

//@ revisions: current next
//@[next] compile-flags: -Znext-solver
//@ ignore-compare-mode-next-solver (explicit revisions)
//@[current] check-pass
//@[current] 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 = ();
//[next]~^ the type
//[next]~| the type
const _: <Vec<str> as WellUnformed>::RequestNormalize = ();
//[next]~^ the type
//[next]~| the type
fn main() {}