Function whileMutating

docs/pseudo.esm.sh/tinybase@9.0.0/index.js:1082–1088

(action)

  const finishTransactionListeners = pairNewMap();
  const [addListener, callListeners, delListenerImpl, callListenerImpl] = getListenerFunctions(() => store);
  const whileMutating = (action) => {
    const wasMutating = mutating;
    mutating = 1;
    const result = action();
    mutating = wasMutating;
    return result;
  };
  const ifTransformed = (snapshot, getResult, then, isEqual = Object.is) => ifNotUndefined(
    getResult(),
    (result) => snapshot === result || isEqual(snapshot, result) ? then(result) : whileMutating(() => then(result))