Help: how to work with catch_unwind.

[jjeffcaii]

Hi:

I got a compile error when using catch_unwind, I don't know how to change my code to resolve this problem.

Here's a simple example:

use async_trait::async_trait;
use futures::FutureExt;

#[async_trait]
pub trait Foobar: Sync + Send + 'static {
    async fn foobar(&self);
}

pub struct FoobarImpl;

#[async_trait]
impl Foobar for FoobarImpl {
    async fn foobar(&self) {
        println!("foobar");
    }
}

async fn test(x: FoobarImpl) {
    x.foobar().catch_unwind().await; // <- cannot compile
}

Thanks!

[taiki-e]

the future returned by foobar is not UnwindSafe. you need to use AssertUnwindSafe

-     x.foobar().catch_unwind().await;
+     AssertUnwindSafe(x.foobar()).catch_unwind().await;

playground

[jjeffcaii]

@taiki-e It works! Thanks! 😄