Comment by cowboyd

Is it safe to just "stop calling next() on a generator?" like the post suggest?

To me that sounds like dropping the task on the floor. Specifically, this will not invoke any finally {} blocks:

More correctly, you should invoke `return()` on the generator. Otherwise, you won't provide execution guarantees. This is how Effection does it. There is no equivalent in async functions, so it sounds like the same problem would apply to the GC technique.