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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/associated-types/normalization-debruijn-2.rs | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/test/ui/associated-types/normalization-debruijn-2.rs b/src/test/ui/associated-types/normalization-debruijn-2.rs new file mode 100644 index 000000000..abe248e16 --- /dev/null +++ b/src/test/ui/associated-types/normalization-debruijn-2.rs @@ -0,0 +1,31 @@ +// build-pass +// edition:2018 + +// Regression test to ensure we handle debruijn indices correctly in projection +// normalization under binders. Found in crater run for #85499 + +use std::future::Future; +use std::pin::Pin; +pub enum Outcome<S, E> { + Success(S), + Failure(E), +} +pub struct Request<'r> { + _marker: std::marker::PhantomData<&'r ()>, +} +pub trait FromRequest<'r>: Sized { + type Error; + fn from_request<'life0>( + request: &'r Request<'life0>, + ) -> Pin<Box<dyn Future<Output = Outcome<Self, Self::Error>>>>; +} +pub struct S<T> { + _marker: std::marker::PhantomData<T>, +} +impl<'r, T: FromRequest<'r>> S<T> { + pub async fn from_request(request: &'r Request<'_>) { + let _ = T::from_request(request).await; + } +} + +fn main() {} |