Function returnNextElement

packages/effect/src/internal/fiberRuntime.ts:2281–2289

()

                const a = todos.pop()!
                let index = counter++
                const returnNextElement = () => {
                  const a = todos.pop()!
                  index = counter++
                  return core.flatMap(core.yieldNow(), () =>
                    core.flatMap(
                      stepOrExit(restore(f(a, index))),
                      onRes
                    ))
                }
                const onRes = (
                  res: Exit.Exit<X, E> | Effect.Blocked<X, E>
                ): Effect.Effect<Exit.Exit<X, E> | Effect.Blocked<X, E>, never, R> => {