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//@ compile-flags: -Znext-solver
//~^ ERROR cannot normalize `<T as Default>::Id: '_`
#![feature(specialization)]
//~^ WARN the feature `specialization` is incomplete
trait Default {
type Id;
fn intu(&self) -> &Self::Id;
}
impl<T> Default for T {
default type Id = T;
// This will be fixed by #111994
fn intu(&self) -> &Self::Id {
//~^ ERROR type annotations needed
self //~ ERROR cannot satisfy
}
}
fn transmute<T: Default<Id = U>, U: Copy>(t: T) -> U {
*t.intu()
}
use std::num::NonZero;
fn main() {
let s = transmute::<u8, Option<NonZero<u8>>>(0); //~ ERROR cannot satisfy
assert_eq!(s, None);
}
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