pub struct Prev<T>(pub Option<T>);
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Tuple Fields§
§0: Option<T>
Trait Implementations§
Auto Trait Implementations§
impl<T> RefUnwindSafe for Prev<T>where T: RefUnwindSafe,
impl<T> Send for Prev<T>where T: Send,
impl<T> Sync for Prev<T>where T: Sync,
impl<T> Unpin for Prev<T>where T: Unpin,
impl<T> UnwindSafe for Prev<T>where T: UnwindSafe,
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