52 lines
969 B
Rust
52 lines
969 B
Rust
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//@ revisions: stock hr
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//@[hr] compile-flags: -Zhigher-ranked-assumptions
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//@ edition: 2024
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//@ check-pass
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// Test that we don't normalize the higher-ranked assumptions of an auto trait goal
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// unless we have `-Zhigher-ranked-assumptions`, since obligations that result from
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// this normalization may lead to higher-ranked lifetime errors when the flag is not
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// enabled.
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// Regression test for <https://github.com/rust-lang/rust/issues/147285>.
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pub trait Service {
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type Response;
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}
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impl<T, R> Service for T
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where
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T: FnMut() -> R,
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R: 'static,
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{
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type Response = R;
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}
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async fn serve<C>(_: C)
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where
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C: Service,
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C::Response: 'static,
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{
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connect::<C>().await;
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}
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async fn connect<C>()
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where
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C: Service,
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C::Response: 'static,
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{
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}
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fn repro() -> impl Send {
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async {
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let server = || do_something();
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serve(server).await;
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}
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}
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fn do_something() -> Box<dyn std::error::Error> {
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unimplemented!()
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}
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fn main() {}
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