Your async function desugars into something like: enum DoHeavyWork {

Question

Your async function desugars into something like: enum DoHeavyWork {

Start,
Ready,
}

impl Future for DoHeavyWork {
fn poll(..) -> Poll<()> {
loop {
match self {
Self::Start => {
println!("start heavy task");
for _ in 0..800000000 {}
println!("heavy task done");
return Poll::Ready(());
}
Self::Ready => panic!("called async fn after return"),
}
}
}
}

each variant in the enum is an .await point. see?

0

21.08.2020

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Jojii.rs ㍃ · Accepted Answer

Jojii.rs ㍃

No i don't understand what you want me to show with this example

0

21.08.2020

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Your async function desugars into something like: enum DoHeavyWork {

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