private static void PreserveCultureUnsafeOnCompleted(ICriticalNotifyCompletion notifier,
Action continuation,
bool useSyncContext)
{
// Rely on the SyncContext to preserve culture if it exists
if (useSyncContext && SynchronizationContext.Current != null)
{
notifier.UnsafeOnCompleted(continuation);
}
else
{
var preservedCulture = TaskAsyncHelper.SaveCulture();
notifier.UnsafeOnCompleted(() =>
{
TaskAsyncHelper.RunWithPreservedCulture(preservedCulture, continuation);
});
}
}