Method serializeKey

lib/internal/modules/esm/module_map.js:34–50

* Generates the internal serialized cache key and returns it along the actual cache object. * * It is exposed to allow more efficient read and overwrite a cache entry. * @param {string} specifier * @param {Record } importAttributes * @returns {string}

(specifier, importAttributes)

   * @returns {string}
   */
  serializeKey(specifier, importAttributes) {
    // To serialize the ModuleRequest (specifier + list of import attributes),
    // we need to sort the attributes by key, then stringifying,
    // so that different import statements with the same attributes are always treated
    // as identical.
    const keys = ObjectKeys(importAttributes);

    if (keys.length === 0) {
      return specifier + '::';
    }

    return specifier + '::' + ArrayPrototypeJoin(
      ArrayPrototypeMap(
        ArrayPrototypeSort(keys),
        (key) => JSONStringify(key) + JSONStringify(importAttributes[key])),
      ',');
  }

  #getModuleCachedImports(parentURL) {
    let internalCache = super.get(parentURL);