public void Execute()
{
try {
var result = Func();
Future.SetResult(result, null);
} catch (Exception exc) {
Future.SetResult2(default(T), ExceptionDispatchInfo.Capture(exc));
}
}
public static void Fail <T> (this Future <T> future, Exception error)
{
future.SetResult2(default(T), ExceptionDispatchInfo.Capture(error));
}