Method realpath

lib/internal/vfs/file_system.js:730–739

* Gets the real path asynchronously. * @param {string} filePath The path * @param {object|Function} [options] Options or callback * @param {Function} [callback] Callback (err, resolvedPath)

(filePath, options, callback)

   * @param {Function} [callback] Callback (err, resolvedPath)
   */
  realpath(filePath, options, callback) {
    if (typeof options === 'function') {
      callback = options;
      options = undefined;
    }

    this[kProvider].realpath(this.#toProviderPath(filePath), options)
      .then((realPath) => callback(null, this.#toMountedPath(realPath)),
            (err) => callback(err));
  }

  /**
   * Reads symlink target asynchronously.