pub struct Unset<T>(_);
Expand description
A parameter that has not been set, yet.
Trait Implementations
impl<T> Copy for Unset<T>
Auto Trait Implementations
impl<T> RefUnwindSafe for Unset<T>
impl<T> Send for Unset<T>
impl<T> Sync for Unset<T>
impl<T> Unpin for Unset<T>
impl<T> UnwindSafe for Unset<T>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more