File: type-alias-impl-trait-with-cycle-error-4.rs

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#![feature(type_alias_impl_trait)]
//@ known-bug: trait-system-refactor-initiative#43

trait Id {
    type Assoc;
}
impl<T> Id for T {
    type Assoc = T;
}

type Ty
where
    Ty: Id<Assoc = Ty>,
= impl Sized;
fn define() -> Ty {}
fn main() {}