Method [kTransfer]

lib/internal/webstreams/transformstream.js:209–234

()

  }

  [kTransfer]() {
    if (!isTransformStream(this))
      throw new ERR_INVALID_THIS('TransformStream');
    const {
      readable,
      writable,
    } = this[kState];
    if (readable.locked) {
      throw new DOMException(
        'Cannot transfer a locked ReadableStream',
        'DataCloneError');
    }
    if (writable.locked) {
      throw new DOMException(
        'Cannot transfer a locked WritableStream',
        'DataCloneError');
    }
    return {
      data: {
        readable,
        writable,
      },
      deserializeInfo:
        'internal/webstreams/transformstream:TransferredTransformStream',
    };
  }

  [kTransferList]() {
    return [ this[kState].readable, this[kState].writable ];