18a707fc8e
The ICE fix appears to be unsound, causing a miscompilation involving
`dyn Trait` and `async {}` which induces segfaults in safe Rust code.
As the patch only hid an ICE, it does not seem worth the risk.
This reverts commit 8afd63610b, reversing
changes made to 19122c03c7.
41 lines
695 B
Rust
41 lines
695 B
Rust
//@ known-bug: #135470
|
|
//@ compile-flags: -Copt-level=0
|
|
//@ edition: 2021
|
|
|
|
use std::future::Future;
|
|
trait Access {
|
|
type Lister;
|
|
|
|
fn list() -> impl Future<Output = Self::Lister> {
|
|
async { todo!() }
|
|
}
|
|
}
|
|
|
|
trait Foo {}
|
|
impl Access for dyn Foo {
|
|
type Lister = ();
|
|
}
|
|
|
|
fn main() {
|
|
let svc = async {
|
|
async { <dyn Foo>::list() }.await;
|
|
};
|
|
&svc as &dyn Service;
|
|
}
|
|
|
|
trait UnaryService {
|
|
fn call2() {}
|
|
}
|
|
trait Unimplemented {}
|
|
impl<T: Unimplemented> UnaryService for T {}
|
|
struct Wrap<T>(T);
|
|
impl<T: Send> UnaryService for Wrap<T> {}
|
|
|
|
trait Service {
|
|
fn call(&self);
|
|
}
|
|
impl<T: Send> Service for T {
|
|
fn call(&self) {
|
|
Wrap::<T>::call2();
|
|
}
|
|
}
|