tests/ui/type-alias-impl-trait/type-alias-impl-trait-with-cycle-error2.rs


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#![feature(type_alias_impl_trait)]

pub trait Bar<T> {
    type Item;
}

type Foo = impl Bar<Foo, Item = Foo>;
//~^ ERROR: unconstrained opaque type

fn crash(x: Foo) -> Foo {
    x
}

fn main() {}