1 use std::marker::PhantomData; 2 3 /// `LocalRuntime`-only config options 4 /// 5 /// Currently, there are no such options, but in the future, things like `!Send + !Sync` hooks may 6 /// be added. 7 #[derive(Default, Debug)] 8 #[non_exhaustive] 9 pub struct LocalOptions { 10 /// Marker used to make this !Send and !Sync. 11 _phantom: PhantomData<*mut u8>, 12 } 13