roller) => {
        const value = this[kHandle].decode(chunk, { stream: true });
        if (value)
          controller.enqueue(value);
      },
      flush: (controller) => {
        const value = this[kHandle].decode();
        if (value)
          controller.enqueue(value);
        controller.terminate();
      },
    });
  }

  /**
   * @readonly
   * @type {string}
   */
  get encoding() {
    if (!isTextDecoderStream(this))
      throw new ERR_INVALID_THIS('TextDecoderStream');
    return this[kHandle].encoding;
  }

  /**
   * @readonly
   * @type {boolean}
   */
  get fatal() {
    if (!isTextDecoderStream(this))
      throw new ERR_INVALID_THIS('TextDecoderStream');
    return this[kHandle].fatal;
  }

  /**
   * @readonly
   * @type {boolean}
   */
  get ignoreBOM() {
    if (!isTextDecoderStream(this))
      throw new ERR_INVALID_THIS('TextDecoderStream');
    return this[kHandle].ignoreBOM;
  }

  /**
   * @readonly
   * @type {ReadableStream}
   */
  get readable() {
    if (!isTextDecoderStream(this))
      throw new ERR_INVALID_THIS('TextDecoderStream');
    return this[kTransform].readable;
  }

  /**
   * @readonly
   * @type {WritableStream}
   */
  get writable() {
    if (!isTextDecoderStream(this))
      throw new ERR_INVALID_THIS('TextDecoderStream');
    return this[kTransform].writable;
  }

  [kInspect](depth, options) {
    if (!isTextDecoderStream(this))
      throw new ERR_INVALID_THIS('TextDecoderStream');
    return customInspect(depth, options, 'TextDecoderStream', {
      encoding: this[kHandle].encoding,
      fatal: this[kHandle].fatal,
      ignoreBOM: this[kHandle].ignoreBOM,
      readable: this[kTransform].readable,
      writable: this[kTransform].writable,
    });
  }
}

ObjectDefineProperties(TextEncoderStream.prototype, {
  encoding: kEnumerableProperty,
  readable: kEnumerableProperty,
  writable: kEnumerableProperty,
});

ObjectDefineProperties(TextDecoderStream.prototype, {
  encoding: kEnumerableProperty,
  fatal: kEnumerableProperty,
  ignoreBOM: kEnumerableProperty,
  readable: kEnumerableProperty,
  writable: kEnumerableProperty,
});

module.exports = {
  TextEncoderStream,
  TextDecoderStream,
};