Async compute task

[u873838]

I am new to Rust, so please excuse my potentially basic question.

What is the recommended way to have a Task compute implementation that is async? I want to have code that is like the following:

impl Task for AsyncFib {
  type Output = u32;
  type JsValue = JsNumber;
 
  async fn compute(&mut self) -> Result<Self::Output> {
    some_async_func.await;
    Ok(fib(self.input))
  }
 
  fn resolve(&mut self, env: Env, output: u32) -> Result<Self::JsValue> {
    env.create_uint32(output)
  }
}

But I get a compile error saying that "async trait functions are not currently supported". If I change my compute function to the following:

fn compute(&mut self) -> Result<Self::Output> {
  block_on(some_func);
  Ok(fib(self.input))
}

Would that be OK? Assuming I started this task with AsyncTask::new, block_on should only block the execution of this task and no other threads, right?