Is there idiomatic way to enforce JVM to do happen...

# coroutines

[krenvpravo]

Is there idiomatic way to enforce JVM to do happens-before when nested coroutine returns to parent one?
Performance overhead is acceptable.

[elizarov]

There is hapens-before an all returns and awaits. You don't have to do anything special.

[krenvpravo]

Even with mutable data structures?
This is an example https://pastebin.com/nTcTV6gY

[elizarov]

Yes. Coroutines guarantee sequential execution in the most technical meaning of this word