Poll: Async/Await, let's talk about executors!

[Nemo157]

@najamelan

it is pass a nursery as an argument

Would it be safe to say that in rust the equivalent is to pass an executor in?

Actually, just thinking if an executor is passed in and used to spawn, we still don't preserve the linear flow of the nursery, which joins all tasks...

You can create something very similar to this by wrapping a spawner in another one that tracks all sub-futures it spawns. Without some form of AsyncDrop you would have to explicitly join that spawner to wait for all the sub-futures to complete, but maybe there would be a way to deal with it via some sort of closure based API.

Here's a non-trivial example using a wrapper nursery to scope some tasks while using a top-level spawner to actually run them: Rust Playground