Method deOpBuffer

packages/core/src/engine/buffer_storage.ts:183–194

* @description reads the data of opBuffer and clears the opBuffer, * Considering the delay of the network layer, the front end cannot receive the ack in time, * here will save a copy of the opsBuffer data in the storage * @param {number} revision * @returns * @memberof Engine

(revision: number)

   * @memberof Engine
   */
  deOpBuffer(revision: number) {
    const ops = this.opBuffer;
    // reset opBuffer
    this.opBuffer = [];

    // set localChangeset
    if (!ops.length) {
      this.localPendingChangeset = undefined;
      return;
    }
    this.localPendingChangeset = BufferStorage.ops2Changeset(ops, revision, this.resourceId, this.resourceType);
  }

  static ops2Changeset(ops: IOperation[], revision: number, resourceId: string, resourceType: ResourceType): ILocalChangeset {
    const messageId = generateRandomString();