Function assertBufferSource

lib/internal/modules/helpers.js:428–442

* Asserts that the given body is a buffer source (either a string, array buffer, or typed array). * Throws an error if the body is not a buffer source. * @param {string | ArrayBufferView | ArrayBuffer} body - The body to check. * @param {boolean} allowString - Whether or not to allow a string as

(body, allowString, hookName)

 * @returns {void}
 */
function assertBufferSource(body, allowString, hookName) {
  if (allowString && typeof body === 'string') {
    return;
  }
  const { isArrayBufferView, isAnyArrayBuffer } = lazyTypes();
  if (isArrayBufferView(body) || isAnyArrayBuffer(body)) {
    return;
  }
  throw new ERR_INVALID_RETURN_PROPERTY_VALUE(
    `${allowString ? 'string, ' : ''}array buffer, or typed array`,
    hookName,
    'source',
    body,
  );
}

let DECODER = null;