Code shared from the Rust Playground

playground.rs

use ::std::sync::Arc;
use ::tokio::sync::mpsc; // 0.1.22

struct Bar {
    s: Arc<str>,
    sender: mpsc::Sender<Data>,
}

#[derive(Debug)]
struct Data {
    s: Arc<str>,
}

impl Bar {
    fn send (self: &'_ mut Self)
    {
        let data = Data {
            s: self.s.clone(),
        };
        self.sender
            .try_send(data)
            .expect("Failed to send to channel")
        ;
    }
}

fn main ()
{
    let (sender, _receiver) = mpsc::channel::<Data>(100);
    let mut b = Bar {
        s: String::from("hello").into(),
        sender,
    };
    b.send();
}