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// revisions: current next
//[next] compile-flags: -Znext-solver
#![feature(coroutines, coroutine_trait)]
use std::ops::{Coroutine, CoroutineState};
fn foo() -> impl Coroutine<Yield = (), Return = ()> {
//~^ ERROR cannot resolve opaque type
//~| NOTE recursive opaque type
//~| NOTE in this expansion of desugaring of
|| {
let mut gen = Box::pin(foo());
//~^ NOTE coroutine captures itself here
let mut r = gen.as_mut().resume(());
while let CoroutineState::Yielded(v) = r {
yield v;
r = gen.as_mut().resume(());
}
}
}
fn main() {
foo();
}
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