start method

Future<int> start({ required FutoSwipeBundle bundle, required List<FutoSwipeWord> lexicon, required bool includeModelVocabulary, required int beamWidth, })

Returns the swipeable lexicon size.

Implementation

Future<int> start({
  required FutoSwipeBundle bundle,
  required List<FutoSwipeWord> lexicon,
  required bool includeModelVocabulary,
  required int beamWidth,
}) async {
  if (_sendPort != null) {
    throw StateError('FUTO Swipe isolate already started');
  }
  final handshake = ReceivePort();
  try {
    _isolate = await Isolate.spawn(
      _entryPoint,
      handshake.sendPort,
      onError: handshake.sendPort,
      debugName: 'fonnx-futo-swipe',
    );
    final first = await handshake.first;
    if (first is! SendPort) {
      throw Exception('Failed to start FUTO Swipe isolate: $first');
    }
    _sendPort = first;
    return await _request<int>(
      _Initialize(
        bundle,
        lexicon,
        includeModelVocabulary,
        beamWidth,
        fonnxOrtDylibPathOverride,
      ),
    );
  } catch (_) {
    _isolate?.kill();
    _isolate = null;
    _sendPort = null;
    rethrow;
  } finally {
    handshake.close();
  }
}