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// Regression test for borrowck ICE #133252
//@ edition:2021
use std::future::Future;
trait Owned: 'static {}
fn ice() -> impl Future<Output = &'static dyn Owned> {
async {
let not_static = 0;
force_send(async_load(¬_static));
//~^ ERROR implementation of `LoadQuery` is not general enough
//~| ERROR `not_static` does not live long enough
loop {}
}
}
fn force_send<T: Send>(_: T) {}
fn async_load<'a, T: LoadQuery<'a>>(this: T) -> impl Future {
async {
this.get_future().await;
}
}
trait LoadQuery<'a>: Sized {
type LoadFuture: Future;
fn get_future(self) -> Self::LoadFuture {
loop {}
}
}
impl<'a> LoadQuery<'a> for &'a u8 {
type LoadFuture = SimpleFuture;
}
struct SimpleFuture;
impl Future for SimpleFuture {
type Output = ();
fn poll(
self: std::pin::Pin<&mut Self>,
_: &mut std::task::Context<'_>,
) -> std::task::Poll<Self::Output> {
loop {}
}
}
fn main() {}
|
