[sandruso]

I was playing with resumable execution and I agree that language-level support would be immense improvement. That said, I was able create library that would take javascript code and execute it line-by-line where after each line the state is stored but user needs to use state object to store all intermediate results which are persisted. But there is still problems if the computation fails during on some line. We can retry it but if it broke the entire execution state then we have a problem.

I wonder how to achieve the transaction-like (commit/rollback) behavior that will works across boundaries. Doing it on language-level is the way. Compiler/interpreter can handle all the state serializations.