1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
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() {}
|
