Function defaultResolveImplForCJSLoading

lib/internal/modules/cjs/loader.js:1134–1147

* See resolveForCJSWithHooks. * @param {string} specifier * @param {Module|undefined} parent * @param {boolean} isMain * @param {ResolveFilenameOptions} options * @returns {{url?: string, format?: string, parentURL?: string, filename: string}}

(specifier, parent, isMain, options)

 * @returns {{url?: string, format?: string, parentURL?: string, filename: string}}
 */
function defaultResolveImplForCJSLoading(specifier, parent, isMain, options) {
  // For backwards compatibility, when encountering requests starting with node:,
  // throw ERR_UNKNOWN_BUILTIN_MODULE on failure or return the normalized ID on success
  // without going into Module._resolveFilename.
  let normalized;
  if (StringPrototypeStartsWith(specifier, 'node:')) {
    normalized = BuiltinModule.normalizeRequirableId(specifier);
    if (!normalized) {
      throw new ERR_UNKNOWN_BUILTIN_MODULE(specifier);
    }
    return { __proto__: null, url: specifier, format: 'builtin', filename: normalized };
  }
  return wrapResolveFilename(specifier, parent, isMain, options);
}

/**
 * @typedef {{