public JavaScriptValue CreatePromise(Task <JavaScriptValue> task)
{
lock (taskSync)
{
outstandingItems++;
}
JavaScriptValue resolve;
JavaScriptValue reject;
JavaScriptValue promise = JavaScriptValue.CreatePromise(out resolve, out reject);
reject.AddRef();
resolve.AddRef();
task.ContinueWith(
(antecedent, state) =>
{
switch (antecedent.Status)
{
case TaskStatus.Canceled:
case TaskStatus.Faulted:
reject.CallFunction(
JavaScriptValue.GlobalObject,
JavaScriptValue.CreateError(JavaScriptValue.FromString(antecedent.Exception.Message)));
break;
case TaskStatus.RanToCompletion:
var result = antecedent.GetAwaiter().GetResult();
resolve.CallFunction(JavaScriptValue.GlobalObject, result);
break;
}
lock (taskSync)
{
outstandingItems--;
}
reject.Release();
resolve.Release();
},
null,
this.taskScheduler);
return(promise);
}