[kitd]

Impressive work. This reminds me of an experimental JVM that was around about 20 years ago from a group called Velare. They could do durable coroutines just like this, but by throwing a particular exception rather than using `yield`. They also could return a value and allow the coro to be resumed with a value.

edit: here it is https://dl.acm.org/doi/10.1145/949344.949362 It was a built-in bytecode interpreter with suspendable threads

It changed significantly how you think about cooperating processes. It was like watching 2 processes have a conversation with each other without the controlling code getting involved in any way. Also, if you save the coros after each call, you can get step-by-step replays which are very helpful in debugging.

[ncruces]

An open-source version of this I made for Google Summer of Code 2005: https://sourceforge.net/projects/jauvm/