private async Task <REvaluationResult> EvaluateAsyncWorker(string expression, REvaluationKind kind, CancellationToken cancellationToken)
{
await TaskUtilities.SwitchToBackgroundThread();
var request = await EvaluationRequest.SendAsync(this, expression, kind, cancellationToken);
return(await request.Task);
}
public async Task <REvaluationResult> EvaluateAsync(string expression, REvaluationKind kind, CancellationToken cancellationToken)
{
if (_runTask == null)
{
throw new InvalidOperationException("Host was not started");
}
using (CancellationTokenUtilities.Link(ref cancellationToken, _cts.Token)) {
try {
await TaskUtilities.SwitchToBackgroundThread();
var request = await EvaluationRequest.SendAsync(this, expression, kind, cancellationToken);
return(await request.Task);
} catch (OperationCanceledException ex) when(_cts.IsCancellationRequested)
{
throw new RHostDisconnectedException(Resources.Error_RHostIsStopped, ex);
}
}
}