Having to explicitly mark where the control flow goes to the event loop with `await` is a very small price to pay for making the code much more clear. This is why I don't recommend node-fibers or deep coroutines in general.

Destructuring would make your example look better: foo({ui, commit, objs}), and then there's no need for typing out ctx. Another thing that's not needed with for-of loops is .iterate().

Using eval() is a very strong anti-pattern, and it's not needed there anyway. JS has the `with` statement that allows running code with a specific context, but its use is discouraged as it's really bad for readability and hard to optimize.