Function aggregateTwoErrors

lib/internal/errors.js:171–200

(innerError, outerError)

}

const aggregateTwoErrors = (innerError, outerError) => {
  if (innerError && outerError && innerError !== outerError) {
    if (ArrayIsArray(outerError.errors)) {
      // If `outerError` is already an `AggregateError`.
      ArrayPrototypePush(outerError.errors, innerError);
      return outerError;
    }
    let err;
    if (isErrorStackTraceLimitWritable()) {
      const limit = Error.stackTraceLimit;
      Error.stackTraceLimit = 0;
      // eslint-disable-next-line no-restricted-syntax
      err = new AggregateError(new SafeArrayIterator([
        outerError,
        innerError,
      ]), outerError.message);
      Error.stackTraceLimit = limit;
      ErrorCaptureStackTrace(err, aggregateTwoErrors);
    } else {
      // eslint-disable-next-line no-restricted-syntax
      err = new AggregateError(new SafeArrayIterator([
        outerError,
        innerError,
      ]), outerError.message);
    }
    err.code = outerError.code;
    return err;
  }
  return innerError || outerError;
};

class NodeAggregateError extends AggregateError {
  constructor(errors, message) {