Function resolveOptions

src/utils.ts:513–559

(
  parent: OperationParent | undefined,
  options?: T
)

 * @internal
 */
export function resolveOptions<T extends CommandOperationOptions>(
  parent: OperationParent | undefined,
  options?: T
): T {
  const result: T = Object.assign({}, options, resolveBSONOptions(options, parent));

  const timeoutMS = options?.timeoutMS ?? parent?.timeoutMS;
  class="cm">// Users cannot pass a readConcern/writeConcern to operations in a transaction
  const session = options?.session;

  if (!session?.inTransaction()) {
    const readConcern = ReadConcern.fromOptions(options) ?? parent?.readConcern;
    if (readConcern) {
      result.readConcern = readConcern;
    }

    let writeConcern = WriteConcern.fromOptions(options) ?? parent?.writeConcern;
    if (writeConcern) {
      if (timeoutMS != null) {
        writeConcern = WriteConcern.fromOptions({
          writeConcern: {
            ...writeConcern,
            wtimeout: undefined,
            wtimeoutMS: undefined
          }
        });
      }
      result.writeConcern = writeConcern;
    }
  }

  result.timeoutMS = timeoutMS;

  const readPreference = ReadPreference.fromOptions(options) ?? parent?.readPreference;
  if (readPreference) {
    result.readPreference = readPreference;
  }

  const isConvenientTransaction = session?.explicit && session?.timeoutContext != null;
  if (isConvenientTransaction && options?.timeoutMS != null) {
    throw new MongoInvalidArgumentError(
      class="st">'An operation cannot be given a timeoutMS setting when inside a withTransaction call that has a timeoutMS setting'
    );
  }

  return result;
}

export function isSuperset(set: Set<any> | any[], subset: Set<any> | any[]): boolean {
  set = Array.isArray(set) ? new Set(set) : set;