pub struct NoneTy;
Expand description
Helper struct that denotes that the type doesn’t exist, analog to Option::None
Trait Implementations§
Auto Trait Implementations§
impl Freeze for NoneTy
impl RefUnwindSafe for NoneTy
impl Send for NoneTy
impl Sync for NoneTy
impl Unpin for NoneTy
impl UnwindSafe for NoneTy
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more