Agfdhyk

Not sure if its a compiler limitation or something I don't understand (likely the last :-))

I'm trying to access a "DataView" structure buried in an native java-script class.
I got it to work in debug mode; however, when compiled for deployment, the solution isn't working.

  await _transferIn(adapter, 5, 64).then((usbInTransferResult){

    log.finest('_transferIn.then');

    js.context['console'].callMethod('log', [usbInTransferResult]);



    var rxLen = usbInTransferResult['data']['byteLength'];  <<<<< Fails

    for( var index = 0; index < rxLen; index++ ){

      rxData.add(usbInTransferResult['data'].callMethod('getUint8', [index]));  <<<<< Fails

    };



    log.finest(rxData);

    return completer.complete(rxData);

  });

The above code reads a data packet received through USB (WebUSB). It reads the received package length and puts it copies each byte into a List<int>. In both places (reading the property byteLength and calling method getUint8([index]) fails only when compiled for deployment.

Below a picture of the reported error

Below a picture of a successful run (in debug mode)
Please notice the additional DART symbols (which are missing in the picture above).

ps.
I'm using DART-SDK 2.0.0 (tried also 2.1.0-dev.8.0), and Angular-DART 5.0.0, within a WebStorm project.

See the js package and it's documentation for how to wrap a javascript API with something callable from Dart.