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[rustc.git] / src / test / ui / type-alias-impl-trait / issue-57611-trait-alias.rs

// check-pass
// Regression test for issue #57611
// Ensures that we don't ICE

#![feature(trait_alias)]
#![feature(type_alias_impl_trait)]

trait Foo {
    type Bar: Baz<Self, Self>;

    fn bar(&self) -> Self::Bar;
}

struct X;

impl Foo for X {
    type Bar = impl Baz<Self, Self>;

    fn bar(&self) -> Self::Bar {
        |x| x
    }
}

trait Baz<A: ?Sized, B: ?Sized> = Fn(&A) -> &B;

fn main() {}