How do I implement an async Drop in Rust?

Question

I have an async fn that returns a type, and want to implement Drop on that type that calls another async function. It's not clear how to do this, and I can't find anything in the docs. The most illuminating article I found is Asynchronous Destructors by withoutboats, but I don't really understand the reasoning, or where this feature is at.

Answer 1

It's not clear how to do this, and I can't find anything in the docs

That's because it's not possible; there is no "async Drop". Drop must be synchronous.

See also:

• How do I synchronously return a value calculated in an asynchronous Future in stable Rust?