Tracking in asynchronous contexts

[tuhm1]

I wrote a function to track signals manually:

function useTrack() {
  const owner = getOwner();
  const [changed, setChanged] = createSignal(false);
  changed();

  return function ref<T>(signal: Accessor<T>): T {
    return runWithOwner(owner, () => {
      if (changed() === true) {
        return signal();
      }
      let value: T;
      const track = createReaction(() => setChanged(true));
      track(() => (value = signal()));
      return value!;
    })!;
  };
}

Example usage:

createEffect(async () => {
  const ref = useTrack();

  await asyncFunction();

  console.log(ref(a) + ref(b));
});

I wonder if there is any issue with that function. I've done some tests, and it seems to work fine.