mirror of https://github.com/rust-lang/rust
89 lines
2.0 KiB
Rust
89 lines
2.0 KiB
Rust
//@ revisions: current next
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//@ ignore-compare-mode-next-solver (explicit revisions)
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//@[next] compile-flags: -Znext-solver
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//@ edition:2021
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mod hyper {
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use std::{fmt::Debug, future::Future, marker::PhantomData, pin::Pin, task::Poll};
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pub trait HttpBody {
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type Error;
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}
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impl HttpBody for () {
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//~^ ERROR not all trait items implemented, missing: `Error`
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// don't implement `Error` here for the ICE
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}
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pub struct Server<I, S>(I, S);
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pub fn serve<I, S>(_: S) -> Server<I, S> {
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todo!()
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}
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impl<S, B> Future for Server<(), S>
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where
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S: MakeServiceRef<(), (), ResBody = B>,
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B: HttpBody,
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B::Error: Debug,
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{
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type Output = ();
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fn poll(self: Pin<&mut Self>, _: &mut std::task::Context<'_>) -> Poll<Self::Output> {
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todo!()
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}
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}
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pub trait MakeServiceRef<Target, ReqBody> {
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type ResBody;
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}
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impl<T, S> MakeServiceRef<(), ()> for T
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where
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T: for<'a> Service<&'a (), Response = S>,
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S: Service<()>,
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{
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type ResBody = ();
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}
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pub struct MakeServiceFn<F>(pub F);
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pub struct ServiceFn<F, R>(pub PhantomData<(F, R)>);
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pub trait Service<Request> {
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type Response;
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}
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impl<'t, F, Ret, Target, Svc> Service<&'t Target> for MakeServiceFn<F>
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where
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F: Fn() -> Ret,
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Ret: Future<Output = Result<Svc, ()>>,
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{
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type Response = Svc;
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}
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impl<F, ReqBody, Ret, ResBody, E> Service<ReqBody> for ServiceFn<F, ReqBody>
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where
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F: Fn() -> Ret,
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Ret: Future<Output = Result<ResBody, E>>,
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{
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type Response = ResBody;
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}
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}
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async fn smarvice() -> Result<(), ()> {
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Ok(())
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}
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fn service_fn<F, R, S>(f: F) -> hyper::ServiceFn<F, R>
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where
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F: Fn() -> S,
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{
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hyper::ServiceFn(std::marker::PhantomData)
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}
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async fn iceice() {
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let service = hyper::MakeServiceFn(|| async { Ok::<_, ()>(service_fn(|| smarvice())) });
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hyper::serve::<(), _>(service).await;
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}
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fn main() {}
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